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Resilience to Flood Hazards: Awareness for The Water Supply Infrastructure Water Environ. J. (IF 1.426) Pub Date : 2021-01-10 Lukuba N. Sweya; Renatus P. Manoga; Joel Norbert
Tanzania has experienced recurring floods causing injuries, deaths, and damage of social service infrastructures. The current study assesses the resilience of water supply physical infrastructure (WSPI) against flood. Questionnaires, interviews and physical observations were conducted to evaluate the problems affecting the WSPI. Most components were found vulnerable to flood impacts. The problems align
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The Design of a Bench‐scale Adsorbent Column based on Nanoclay‐loaded Electrospun Fiber Membrane for the Removal of Arsenic in Wastewater Water Environ. J. (IF 1.426) Pub Date : 2021-01-10 Eden May B. Dela Peña; Khryslyn Araño; Michael Leo Dela Cruz; Persia Ada de Yro; Leslie Joy L. Diaz
This study presents a bench‐scale study on the dynamic removal of arsenic from wastewater by an adsorption membrane consisting of a polycaprolactone matrix with iron‐intercalated montmorillonite filler. A 2K factorial design of experiment was employed to study the effect of different adsorption parameters; namely, flow rate, initial influent concentration, and thickness of adsorbent sheets on breakthrough
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Ability of bank filtration to remove cyanotoxins under different levels of nutrients Water Environ. J. (IF 1.426) Pub Date : 2021-01-09 Luke Walkenhorst; Saptashati Biswas; Chittaranjan Ray; Matteo D’Alessio
Harmful algal blooms represent a major environmental problem that is rapidly growing all over the world. In the present work, the effectiveness of simulated bank filtration, as an economical water treatment option, to remove cyanotoxins under different levels of nutrients (nitrates and phosphates) was investigated. Vertical flow‐through columns pre‐acclimated with two levels of nutrients (e.g., nitrate
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Effectiveness assessment of olive mill wastewater treatment by combined process: natural flotation and anaerobic‐aerobic biodegradation Water Environ. J. (IF 1.426) Pub Date : 2021-01-09 Safaa Khattabi Rifi; Anas Aguelmous; Loubna El Fels; Mohamed Hafidi; Salah Souabi
The present work intends to study the treatment of olive oil mill wastewater (OMW) by natural flotation followed by anaerobic‐aerobic biodegradation, without dilution. After natural flotation, turbidity, COD, and polyphenol decreased by 37.7%, 3.7 %, and 3.3%, respectively. Whereas, anaerobic treatment removed 23.9 % of nitrate, 29.1% of turbidity, and 16.2 % of polyphenol. However, intermittent aeration
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Multimetric Approach in the Effects of Small Impoundments on Stream Water Quality: Case study of Faylor and Walker Lakes on Middle Creek, Snyder County, PA Water Environ. J. (IF 1.426) Pub Date : 2021-01-09 A. Lachhab; M.M. Trent; J. Motsko
In recent years, dams have received extensive scrutiny for their effects on stream and river systems throughout the United States. Dams vary greatly in size and scale, but investigations often focus on large‐scale dams because of their visibility in the public eye and pronounced impact. This can result in smaller and less impactful impoundments being overlooked, despite the cumulative effects these
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Effects of applying Biochar and Straw on Nitrate Leaching and maize yield production Water Environ. J. (IF 1.426) Pub Date : 2021-01-08 Zahra Partovi; Hadi Ramezani Etedali; Abbas Kaviani
The aim of this study was to investigate the effect of biochar and wheat straw on nitrogen leaching and corn yield. Field experiment includes CO (control treatment), SM5 and SM10 (wheat straw with a thickness of 5mm and 10mm, respectively), ST5 and ST10 (wheat straw at rate of 5 and 10 t.ha‐1 in combination with soil, respectively) and BT2.5 and BT5 (biochar at rate of 2.5 t.ha‐1 in combination with
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Removal of Ammonia Nitrogen in Aquaculture Wastewater by Composite Photocatalyst TiO2/Carbon Fiber Water Environ. J. (IF 1.426) Pub Date : 2021-01-08 Runqiang Yu; Xiaocai Yu; Jiayuan Fu; Yongxia Zhang; Yifu Liu; Yuqi Zhang; Shini Wu
In this study, TiO2/Carbon fiber (CF) composite photocatalyst was prepared by sol‐gel method, and its characterization was analyzed by SEM and XRD. Under the ultraviolet light, the effects of various single factors on the removal of ammonia nitrogen from aquaculture wastewater by TiO2/CF were discussed. Orthogonal experiments were performed to determine the most beneficial conditions for ammonia nitrogen
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Consequences of groundwater overexploitation on land subsidence in Fars Province of Iran and its mitigation management program Water Environ. J. (IF 1.426) Pub Date : 2021-01-08 Mohsen Golian; Ali Saffarzadeh; Homayoon Katibeh; Masoud Mahdad; Habib Saadat; Mahdi Khazaei; Ershad Sametzadeh; Aboozar Ahmadi; Ebrahim Sharifi Teshnizi; Mahsa Samadi Darafshani; Majid Dashti Barmaki
Land subsidence induced by rapid groundwater depletion in Fars Province (Iran) has led to serious problems for agricultural lands, structures and infrastructures, also its destructive effects on the Achaemenid Empire monuments has raised national concerns. Over the past three decades, mainly due to the increasing reliance of the economy on agriculture, the number of water wells has grown rapidly (7
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Calcium carbonate scaling prevention by a green chemical inhibitor, gallic acid Water Environ. J. (IF 1.426) Pub Date : 2021-01-07 Manel Boumagoura; Samira Ghizellaoui; Salah Rhouati; Hélène Cheap‐Charpentier; Olivier Horner
This work deals with the inhibition of the scaling capacity of Hamma‐Bouziane (HB) groundwater (Algeria). In this study, the scale inhibition efficiency of gallic acid on calcium carbonate formation was assessed using chronoamperometry and impedancemetry. Owing to its characteristics of non‐toxicity and biodegradability, gallic acid can be classified as a green inhibitor.
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Biological removal of nutrients (N & P) from urban wastewater with a modified integrated fixed‐film activated sludge‐oxic settling anoxic system using an anoxic sludge holding tank Water Environ. J. (IF 1.426) Pub Date : 2020-12-07 Mansour Fazelipour; Afshin Takdastan; Seyed Mehdi Borghei
In this research, the efficiency of the integrated fixed‐film activated sludge‐oxic settling anoxic (IFAS‐OSA) system in biological nutrient removal was studied. The oxic‐settling anoxic (OSA) process is known as a cost effective way to reduce the nutrients (nitrogen and Phosphorus). According to the results, the percentages of total nitrogen removal efficiency in the IFAS, IFAS‐OSA2h and IFAS‐OSA4h
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Water footprint assessment of handwoven silk production Water Environ. J. (IF 1.426) Pub Date : 2020-12-05 Jindawan Wibuloutai; Saowalak Naowasan; Pornpilai Thanomsangad
The objective of this study was to determine the magnitudes of the water footprints throughout the production chain of silk. This research is divided into two parts: the agriculture of mulberry cultivation and the handwoven silk production process. The research results revealed that the highest water footprint for 2019 was 1710 cubic metric/tonne, which was greater than the highest water footprint
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Design and evaluation of advanced automatic control strategies in a total nitrogen removal activated sludge plant Water Environ. J. (IF 1.426) Pub Date : 2020-11-18 E. S. S. Tejaswini; G. Uday Bhaskar Babu; A. Seshagiri Rao
Advanced control strategies are designed for an activated sludge‐based wastewater treatment plant (WWTP) consisting of two anoxic, three aerobic reactors and secondary settler by considering the influent data from an existing WWTP. Four different control strategies (PI/FPI/MPC/FLC) are designed and a systematic procedure is developed to implement these control strategies. The plant performance is evaluated
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Functional resilience of activated sludge exposed to Bacillus globigii and bacteriophage MS2 Water Environ. J. (IF 1.426) Pub Date : 2020-12-17 P.E. Matthew Smith; Sean Stuntz; Yun Xing; Matthew Magnuson; Rebecca Phillips; Willie F. Harper
This study evaluated the effect of two biocontaminant surrogates on the activity and performance of activated sludge. In the presence of bacteriophage MS2 at 3.2 x 108 PFU/mL, the peak respiration rates varied between 9.1 ‐ 10.5 mg O2/gVSS/hr, generally similar to the rates observed in negative controls. MS2 did not alter the molar CO2 produced‐to‐O2 consumed stoichiometry observed during respiration
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Application of algae to free surface wetlands for effluent reuse Water Environ. J. (IF 1.426) Pub Date : 2020-11-07 Shereen Yehia; Aiman El‐Saadi; Mona M. Galal
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Efficacy of selected phosphorus sorbing materials (PSMs) to enhance the orthophosphate sorption capacity of filter socks Water Environ. J. (IF 1.426) Pub Date : 2020-11-18 A. L. Cooke; R. W. Simmons; R. J. Rickson; R. Sakrabani
Agricultural phosphate (PO43−) is a major cause of water quality compliance failures. Filter socks (FS) are a sediment‐control method proven to be effective at removing sediment and sediment bound‐P. Within the water and wastewater treatment industries phosphorous sorbing materials (PSMs) are widely used to remove reactive PO43−. Combining PSMs with FS provides an opportunity to concomitantly remove
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Experimental design approach for the removal of the antidiabetic drug, metformin at a high concentration by photocatalytic processes Water Environ. J. (IF 1.426) Pub Date : 2020-11-15 Edson Baltazar Estrada‐Arriaga; Liliana García‐Sánchez; Axel Falcón‐Rojas
The metformin, is an emerging contaminant and one of the most consumed drugs in the world that has a high power of endocrine disruption across species in the ecosystem. The focus of this study was to determine the best photocatalytic processes through the study of TiO2‐based photocatalytic, photo–Fenton and photo–ferrioxalate reactions for the metformin removal. The experimental results demonstrated
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A Hypolimnetic Aeration System to meet the Hypolimnetic Oxygen Demand by Increasing the Natural Assimilation Capacity of a Reservoir Water Environ. J. (IF 1.426) Pub Date : 2020-12-17 Serdar Göncü
Hypolimnetic aeration is a viable method to increase the assimilation capacity of lakes. In this study two lakes, one relatively small pond were chosen where aeration equipment was installed, and one larger reservoir lake where the required aeration amount was found by calculation. A laboratory‐scale hypolimnetic aeration system (HAS) was designed. A hybrid system using wind and solar energy was implemented
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Development of a method for flood detection based on Sentinel‐1 images and classifier algorithms Water Environ. J. (IF 1.426) Pub Date : 2020-12-15 Alireza Sharifi
Floods are one of the most devastating natural disasters in the world, displacing millions of people each year and causing severe damage to people's lives and infrastructure. It is the most widespread hydrological hazard worldwide that affects water management, nature protection, economic activities, hydromorphological alterations on ecosystem services, and human health. Real‐time monitoring systems
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Current trends of public opinion towards block water tariff in developing countries: A case study from Al‐Bireh City, Palestine Water Environ. J. (IF 1.426) Pub Date : 2020-11-22 Issam A. Al‐Khatib; Ala’ Abu Ali; Brooke Hannon; Defne S. Apul; Ilke Celik
The aim of this study was to estimate the socio‐economic determinants of the residential water tariff system for Al‐Bireh city, Palestine. Results confirmed that ~60% of respondents considered that the current water pricing as high in Al‐Bireh. The majority (76.4%) of households would be willing to pay 1%–3% of their monthly income for possible new water tariff in return for services provided for them
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The Impact of forest and non‐forest cover on drinking water treatment costs: panel evidence from Ethiopia Water Environ. J. (IF 1.426) Pub Date : 2020-11-15 Dawit W. Mulatu; Amare Fentie; Juha Siikamäki
Empirical assessment of relationships between land use and land cover and drinking water chemical treatment cost is lacking in developing countries. This study is conducted to assess the impact of forest and non‐forest cover on water purification chemical costs in Ethiopia. A panel fixed effects regression model was applied and analysed at the watershed, upstream parts of the watershed, and different
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A Contemporary and historical analysis of the trace element composition of sewage sludge in the UK Water Environ. J. (IF 1.426) Pub Date : 2020-12-07 Jin Liu; Shan Liu; Stephen R. Smith
Sewage sludge is the essential by‐product of wastewater treatment and approaching 100% of the sewage sludge generated in the UK is recycled to agricultural land. In collaboration with three major Water Utility companies in the UK, a critical statistical analysis of historical and contemporary sludge quality data was completed to demonstrate the long‐term patterns and improvements in the trace element
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Enhanced nitrogen removal by a combination of anammox and heterotrophic denitrification Water Environ. J. (IF 1.426) Pub Date : 2020-11-07 Haruka Shibata; Masahiro Tatara; Yoshiyuki Ueno
This study examines the removal of nitrogen from nitrate, which accumulates in the anammox process, during the heterotrophic denitrification (HD) reaction using organic compounds that were originally contained in the influent as electron donors. The experimental system comprises a single partial‐nitritation/anammox (PNA) reactor and HD reactor for biological oxygen demand (BOD) reduction that is placed
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Development of ecosystem‐based flood mitigation approach – investigations by experiments and numerical simulation Water Environ. J. (IF 1.426) Pub Date : 2020-11-07 Kamran Tariq; Ghufran Ahmed Pasha; Norio Tanaka; Usman Ghani; Afzal Ahmed
The purpose of this research was to understand how to minimise the destructive effects of floods by establishing a bio‐shield of natural vegetation. Experiments were conducted in a water flume to determine the flow properties under different vegetation conditions whereas; volume of fluid (VOF) multiphase approach with a standard k‐ɛ turbulence model was developed for a simulation. The study involved
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Flow field Investigation in a Vortex Settling Basin using Acoustic Doppler Velocimetry and Large Eddy Simulation Water Environ. J. (IF 1.426) Pub Date : 2020-12-05 N.S.R. Nikou; A.N. Ziaei; H. Ansary; J.M. McDonough
Vortex settling basin is an efficient continuous flushing system to remove sediment in water and wastewater treatment plants. In the current study, computational fluid dynamics was implemented to study sophisticated flow field within the Vortex settling basin. The performance of 3‐D Reynolds‐averaged Navier–Stokes turbulence models including standard k‐ε and SST k‐ω models and a large eddy simulation
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Degradation of tetracycline in aqueous solution by persulfate assisted gas‐liquid dielectric barrier discharge Water Environ. J. (IF 1.426) Pub Date : 2020-12-04 Haixia Wu; Jiawei Fan; Feng Liu; Lisha Shu; Baojian Yin
To enhance pollutant decomposition, potassium peroxydisulfate (PDS) was added into a gas‐liquid dielectric barrier discharge (DBD) reactor of rod‐plate configuration to treat tetracycline (TC). The effects of applied voltage, PDS dosage, discharge gap, initial pH value and TC concentration were discussed. The results indicated that PDS addition can significantly improve TC removal efficiency, kinetic
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Phytoremediation of chromium and manganese by Ipomoea aquatica Forssk. from aqueous medium containing chromium‐manganese mixtures in microcosms and mesocosms Water Environ. J. (IF 1.426) Pub Date : 2020-12-04 Nengpilam Haokip; Abhik Gupta
Ipomoea aquatica – an aquatic macrophyte ‐ could remove chromium and manganese from their mixtures after 96 h exposure at a maximum rate of 82.8 and 93.9 %, respectively, in microcosms. The removal rates were higher (90.4 and 94.5 %, respectively) after 96 h exposure in mesocosms with gravel beds and vertical subsurface flow. The higher removal rates in mesocosm were probably due to a wide range of
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Evaluation of Lactobacillus kefiri and manganese peroxidase‐producing bacteria for decolorization of melanoidins and reduction of chemical oxygen demand Water Environ. J. (IF 1.426) Pub Date : 2020-11-08 Ahmad A. Omar; Samir Mahgoub; Ali Salama; Eleni Likotrafiti; Jonathan Rhoades; Christos Christakis; Petros Samaras
Thirteen bacterial isolates from a bioreactor treating a mixture of municipal and molasses wastewater were investigated for their potential to degrade and decolorize melanoidins. All isolates were initially screened for manganese peroxidase activity and growth potential in the presence of four synthetic melanoidins solutions at concentrations ranging from 3 to 7 g/L/L. Three isolates of potential manganese
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Effect of waste landfill site on surface and ground water drinking quality Water Environ. J. (IF 1.426) Pub Date : 2020-11-07 Kofi Owusu Ansah Amano; Eric Danso‐Boateng; Ebenezer Adom; Desmond Kwame Nkansah; Ernest Sintim Amoamah; Emmanuel Appiah‐Danquah
Drinking water quality of surface and underground water within 1.34 km from a waste landfill site in Kumasi, Ghana was investigated. Physico‐chemical properties and heavy metal concentrations were analysed to determine water quality and pollution indices. It was found that turbidity of 83% of hand dug wells, 50% of the streams and 33% of boreholes were higher than World Health Organisation (WHO) standards
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First report of cross resistance to silver and antibiotics in Klebsiella pneumoniae isolated from patients and polluted water in Tunisia Water Environ. J. (IF 1.426) Pub Date : 2020-11-10 Samar Ben Miloud; Md Muntasir Ali; Ilhem Boutiba; Rob Van Houdt; Chedly Chouchani
Klebsiella pneumoniae, ubiquitously found in a variety of environmental sources, is an important pathogen in burn wounds and nosocomial infections. Burn wounds have been commonly treated with silver compounds, which are also used in a multitude of (non)medical products. As the latter increased silver discharge into different environments, we evaluated and compared silver resistance in K. pneumoniae
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COVID‐19 and the water sector: understanding impact, preparedness and resilience in the UK through a sector‐wide survey Water Environ. J. (IF 1.426) Pub Date : 2020-10-06 Sarah Cotterill; Sarah Bunney; Elizabeth Lawson; Alastair Chisholm; Raziyeh Farmani; Peter Melville‐Shreeve
The COVID‐19 pandemic led to drastically altered working practices. During the UK lockdown, a questionnaire was distributed to water professionals to understand their experiences and perceptions of organisational response. Findings were evaluated on the measures of mitigation, adaptation, coping and learning. Employees’ perceived there were adequate procedures to mitigate a threat, partly due to preparations
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Identification of groundwater recharge sites in Latur district of Maharashtra in India based on remote sensing, GIS and multi‐criteria decision tools Water Environ. J. (IF 1.426) Pub Date : 2020-10-09 Vishal Sagar Navane; Sanat Nalini Sahoo
In this study, groundwater potential zones and artificial recharge zones were delineated and favourable sites for placing recharge structures were identified. Different thematic layers were generated using ArcGIS and were scrutinized by a multivariate technique called principal component analysis (PCA). Selected thematic layers and their features were assigned suitable weights on Saaty’s 9‐point scale
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Influence of Fe(III)‐OTC complex on degradation of OTC with Fe(II)/H2O2 under simulated solar light Water Environ. J. (IF 1.426) Pub Date : 2020-09-22 Bi Wenlong; Wenbo Dong
The typical antibiotic Oxytetracycline (OTC) remained in the environment and it was widely used. And the migration and transformation of OTC in natural environment and its harmfulness had become the focus of attention. Thus, the influence of Fe(II/III)‐OTC complex on degradation of OTC by Fe(II)/H2O2 under simulated solar light was investigated. The results showed that the average ratio of OTC‐Fe(II/III)
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Efficient soluble anionic dye removal and antimicrobial properties of ZnO embedded‐ Polyphenylsulfone membrane Water Environ. J. (IF 1.426) Pub Date : 2020-10-15 Arun Kumar Shukla; Javed Alam; Fekri Abdulraqeb Ahmed Ali; Mansour Alhoshan
As a result of the involvement of pollutants in water, there is the need to develop a facile and effective membrane technology that can not only treat dyes, but also kill bacteria in wastewater. In this work, a facile strategy is proposed for the preparation of a nanostructured hybrid membrane based on Polyphenylsulfone containing different ZnO nanoparticle contents. The results confirm that ZnO nanoparticle
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Efficiency of a pilot hybrid wastewater treatment system comprising activated sludge and constructed wetlands planted with Canna lily and Cyperus papyrus Water Environ. J. (IF 1.426) Pub Date : 2020-10-12 Euis Nurul Hidayah; Okik Hendriyanto Cahyonugroho; Ram Babu Pachwarya; A. L. Ramanathan
Combination of constructed wetland with activated sludge (AS) is one of the application of sustainable development for dealing with environmental pollution. The objective of this study was to compare the performance of three system of domestic wastewater treatment, namely AS, combination AS with constructed wetland containing Canna lily (AS‐CWC), combination AS with constructed wetland containing Cyperus
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Application of photosynthetic microalgae in the direct desalination pretreatment of seawater Water Environ. J. (IF 1.426) Pub Date : 2020-10-16 Chukwuemeka S. Ahamefule; Chika J. Ugwuodo; Priscilla O. Idike; James C. Ogbonna
The abilities of three species of freshwater microalgae to grow in, and desalinate untreated and undiluted seawater were investigated. The salinities of the seawater were reduced from 37.5g/L to 26.25 ± 1.33, 27.19 ± 1.33 and 30.0 ± 0.00 g/L by Desmodesmus subspicatus LC172266, Desmodesmus armatus LC172263 and Dictyosphaerium spp. LC172264 on the fourth, eighth and tenth week of the experiment, respectively
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A review of applications of animal‐inspired evolutionary algorithms in reservoir operation modelling Water Environ. J. (IF 1.426) Pub Date : 2020-10-12 Mahsa Jahandideh‐Tehrani; Omid Bozorg‐Haddad; Hugo A. Loáiciga
Successful operation of reservoir systems to guarantee the optimal use of available water resources has been the subject of many studies. The advent and applications of evolutionary algorithms (EAs) in the field of reservoir operation have led to significant advances in our capacity to improve the planning and management of complex reservoir systems. This study reports a review of the applications
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Plastics waste identification in river ecosystems by multispectral proximal sensing: a preliminary methodology study Water Environ. J. (IF 1.426) Pub Date : 2020-10-08 Michaela De Giglio; Marco Dubbini; Irene Cortesi; Michela Maraviglia; Erica Isabella Parisi; Grazia Tucci
A considerable amount of the plastics produced around the world is now dispersed throughout the environment, and in particular in aquatic ecosystems. This can have damaging consequences for plants, animals and human beings. This study investigates some approaches for detection and monitoring of plastics waste in river habitats through multispectral image classification. The data are acquired using
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Disentangling the factors that vary the impact of trees on flooding (a review) Water Environ. J. (IF 1.426) Pub Date : 2020-10-02 Tapuwa R. Marapara; Bethanna M. Jackson; Stephen Hartley; Deborah Maxwell
There is growing interest in the role of trees and forests in reducing the risk of flooding. The establishment of forests and planting of trees changes surface and subsurface hydrology, often delaying peak discharge and reducing overland flow and flood risk. However, it is increasingly recognised that a blanket recommendation to ‘plant trees’ is rarely an efficient approach to flood‐risk management
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Hydroponic Chlorophytum comosum cultivating in distinct nutrient concentration, combined with biofilm treating eutrophic water bodies Water Environ. J. (IF 1.426) Pub Date : 2020-10-08 Fanghui Pan; Youbao Wang; Yanan Gui
Phytoremediation technology using aquatic plants combined with microorganisms in constructed ecological floating bed (EFB) is increasingly applied to remediate eutrophic water. Utilizing the hydroponic Chlorophytum comosum, in combination with biofilm developed in polymeric fibrous carriers from sequencing batch reactor (SBR), to fabricate EFB, was implemented to reduce pollution and improve water
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Table grapes irrigation with treated municipal wastewater in a Mediterranean environment Water Environ. J. (IF 1.426) Pub Date : 2020-10-08 Marie Therese Abi Saab; Joanna Zaghrini; Hassane Makhlouf; Salim Fahed; Dany Romanos; Yara Khairallah; Celine Hajjar; Roula Abi Saad; Mohamed Houssemeddine Sellami; Mladen Todorovic
This study investigated the effect of different water quality regimes [Freshwater (FW), treated wastewater (TW) and alternating FW and TW (FW‐TW)] on drip‐irrigated table grape yield, quality and microbial contamination. Water and soil samples were analysed. In addition, grape samples were harvested for quantitative and qualitative evaluation. The results showed that the plants irrigated with TW and
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Assessing desalination pretreatment conditions towards pilot scale‐up using Box‐Behnken experimental design Water Environ. J. (IF 1.426) Pub Date : 2020-10-04 Sarra Hout; Zineb Salem; Djilali Tassalit; Zahia Tigrine; Hanane Aburideh; Hafida Boukendakji
The purpose of this study is to optimize the operating conditions in batch mode using Box‐Behnken Design (BBD), for the coagulation‐flocculation line sizing prior the sand filter in the pilot scale. Three coagulants were employed to achieve a high turbidity removal with a low concentration of residual metals. The results showed that the best turbidity removal was obtained with FeCl3. Using BBD (15
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Innovative approach for purification of wastewater effluent via soil filtration Water Environ. J. (IF 1.426) Pub Date : 2020-10-08 Abdelkader T. Ahmed
This study examined the feasibility of tertiary treatment for the effluent of the wastewater treatment plants through filtration into soil layers and pumping it for reuse. The research adopted experimental measurements and modelling works to simulate treating wastewater effluents by surrounding soil layers. The modelling work investigated the suitable distances for wastewater purifications into different
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Inhibitory effect and mechanism of three macrophytes extract on Microcystis aeruginosa growth and physiology Water Environ. J. (IF 1.426) Pub Date : 2020-10-09 Zakaria Tazart; Ana Teresa Caldeira; Mountasser Douma; Cátia Salvador; Mohammed Loudiki
Macrophytes are a promising source of bioactive compounds with potential applications in the biocontrol of harmful cyanobacteria blooms. In this study, we investigated the inhibitory effects of extracts from three macrophytes (Nasturtium officinale, Potamogeton natans and Ranunculus aquatilis) on Microcystis aeruginosa. We assessed physiological indicators of inhibition on M. aeruginosa, including
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CoFe2O4/Fe2O3 on carbon cloth as binder free electrodes for desalination using capacitive deionization method Water Environ. J. (IF 1.426) Pub Date : 2020-10-02 Davis Jacob Inbaraj; Chitra Mangalaraj
Desalination of saline water was carried out by capacitive deionization (capDI) method. Pseudocapacitive materials (CoFe2O4/Fe2O3) were coated on the carbon cloth as capDI electrode for three different reaction time (6, 9 and 12 h). Synthesized capDI electrodes were characterized using SEM, XRD, Raman and XPS. The desalination was tested by batch method to study the desalination performance of the
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Fulfillment of river environmental flow: applying Nash theory for quantitative‐qualitative conflict resolution in reservoir operation Water Environ. J. (IF 1.426) Pub Date : 2020-10-02 Mostafa Farhadian; Omid Bozorg-Haddad; Hugo A. Loáiciga
The construction of reservoirs for water supply alters the riverine ecology and changes water quality. It is, therefore, imperative to estimate and provide the riverine environmental flow requirement to prevent irreversible environmental damage and to maintain suitable water quality. Water releases from reservoirs constitute the means for meeting environmental flow and water quality requirements downstream
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Evaluation of the accumulation of heavy metals in water, sediments and plants of a coastal zone of Mexico Water Environ. J. (IF 1.426) Pub Date : 2020-10-09 Juan Miguel Gómez‐Bernal; Esther Aurora Ruiz‐Huerta; María Aurora Armienta Hernández; Patricia Ramírez Romero; Margarita Elizabeth Gallegos‐Martínez
A preliminary environmental assessment of four heavy metals (Mn, Pb, Zn and Fe) on the coast of Campeche, Mexico was carried out. Surface sediments (0–10 cm), water and plants were collected in four sites of the coastline to obtain information about the levels and spatial distribution of the selected elements. The bioconcentration factor (BCF) was calculated for plants, where the BCF of Mn (3.375–3
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Parametric study on CO2 sequestration using cyanobacterial consortium and production of macromolecules: experimentation, modelling and optimization Water Environ. J. (IF 1.426) Pub Date : 2020-10-02 Ganta Upendar; Sunita Singh; Jitamanyu Chakrabarty; Kartik Chandra Ghanta; Md. Shahnawaz; Sandip Kumar Lahiri; Susmita Dutta
Sequestration of CO2 using microalgae is one of the imperative, cost effective and environment‐friendly processes for carbon sequestration and for production of biomass. In the present study, a cyanobacterial consortium was used for the sequestration of CO2 at diverse initial CO2 concentrations (5–30%), pH of the medium (7–11) and inoculum sizes (5–12.5%). The cyanobacterial consortium showed sustainability
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Investigation of covers and chemical treatment for the suppression of cyanobacteria in water treatment systems Water Environ. J. (IF 1.426) Pub Date : 2020-10-02 Justin Box; John Otto; William Kent; Brendan T. Higgins
Algal growth in water treatment plants can lead to the introduction of toxin and odour compounds from cyanobacteria and causes filter fouling. Here, we investigate the use of woven polypropylene covers and a proprietary copper sulfate formulation (EarthTec) to prevent algal growth within mesocosms designed to simulate settling basins. Chlorophyll a, soluble nutrients, weather patterns and cyanobacterial
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Dilemmas of integrated water resources management implementation in the Awash River Basin, Ethiopia: irrigation development versus environmental flows Water Environ. J. (IF 1.426) Pub Date : 2020-09-24 Adey Nigatu Mersha; Charlotte de Fraiture; Ilyas Masih; Tena Alamirew
Environmental flows allocation is an intrinsic part of Integrated Water Resources Management (IWRM). This paper analyses socio‐political issues and effects of environmental flows integration on water availability under the context of increased agricultural intensification in an effort to tackle food insecurity. Lack of appropriate framework comprising the procedural requirements and strategic directions
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A simple drought risk analysis procedure to supplement water resources management planning in England and Wales Water Environ. J. (IF 1.426) Pub Date : 2020-09-23 Sean W. D. Turner; Paul J. Jeffrey
The current ‘Deployable Output’ approach for assessing water resources system performance in England and Wales is a practical, communicable means for assessing the adequacy of a water supply system and determining the relative benefits of proposed system enhancements. A recognised flaw with this approach is that it fails to characterise the severity of potential supply shortfalls, leading to mischaracterisation
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Multi‐criteria analysis to identify the factors affecting water reuse scheme in India Water Environ. J. (IF 1.426) Pub Date : 2020-09-24 Kirti Goyal; Arun Kumar
The growing interest in alternative water supplies is impelling societies, government bodies and industries throughout the world to conduct research and discuss the feasibility of reuse of treated wastewater. Treated wastewater has emerged as an affordable source of water supply worldwide. Designing of wastewater reuse systems involves consideration of multiple criteria such as technical, social, economic
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Removal of endosulfan in a sequencing batch reactor: addition of granular activated carbon as improvement strategy Water Environ. J. (IF 1.426) Pub Date : 2020-09-27 Andrea Reynoso Varela; Fabián P. Vázquez Contreras; Sergio de los Santos Villalobos; Luis H. Alvarez Valencia; Ruth G. Ulloa Mercado; Denisse Serrano Palacios
A granular activated carbon‐sequencing batch reactor (GAC‐SBR) was used to assess the removal of organochlorine endosulfan pesticide. The reactor operated in three stages: (I) starter and stabilization; (II) addition of 4 mg/L of endosulfan in feed; and (III) a single addition of 1 g/L of GAC to mixed liquor. During the 249 days of operation, the removal efficiency of COD was 96 ± 2%; for ‐N 72 ± 1%;
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Effect of waste activated sludge pretreatment methods to mitigate Gordonia foaming potential in anaerobic digestion Water Environ. J. (IF 1.426) Pub Date : 2020-09-22 Aparna Garg; H. David Stensel; Bob Bucher; Pardi Sukapanpotharam; Mari K. H. Winkler
In this study, waste activated sludge obtained from two full‐scale treatment plants with foaming issues was pretreated with acid/alkali treatment, acid‐phase fermentation, thermal treatment, ultrasonic treatment and metal salt treatment to investigate their effect on foam mitigation. Waste activated sludge was characterized for foaming index prior and after each pretreatment method. Among all pretreatment
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Evaluation of waste stabilisation pond units for treating domestic wastewater Water Environ. J. (IF 1.426) Pub Date : 2020-09-22 Moatlhodi Wise Letshwenyo; Shepherd Thumule; Kealeboga Elias
The purpose of this study was to evaluate the performance of individual units of waste stabilisation ponds (WSPs) system treating domestic wastewater. The study was conducted by measuring the concentrations of physiochemical parameters and bacteriological indictors in the influent and effluent samples of each pond. The thickness of sludge was determined by measuring depths of sludge layer in each pond
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Chip‐based duplex real‐time PCR for water quality monitoring concerning Legionella pneumophila and Legionella spp. Water Environ. J. (IF 1.426) Pub Date : 2020-09-24 Cornelia Reuter; Stefanie Hentschel; Antje Breitenstein; Eileen Heinrich; Oliver Aehlig; Thomas Henkel; Andrea Csáki; Wolfgang Fritzsche
Based on biomolecular methods, rapid and selective identification of human pathogenic water organisms becomes an important issue. Legionella spp., are pathogenic water bacteria with worldwide significance. Prevalent detection methods for these microorganisms are time and/or cost intensive. We describe a detection setup and relating DNA assay. A miniaturized real‐time polymerase chain reaction (real‐time
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Investment decision model of wastewater treatment public–private partnership projects based on value for money Water Environ. J. (IF 1.426) Pub Date : 2020-07-17 Shunkun Yu; Tong Dai; Yang Yu; Jinying Zhang
Most existing studies analyse the early decision‐making processes of public–private partnership (PPP) projects from the perspective of the government or investors, as such decisions involve lengthy negotiations and are likely to lead to unfair results. Hence, there is a need for fair and reasonable investment decision‐making methods. This study investigates the investment return system of PPP wastewater
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Comparison of dried sludge and sludge ash for phosphorus recovery with acidic and alkaline leaching Water Environ. J. (IF 1.426) Pub Date : 2020-08-26 Neslihan Semerci; Saifurahman Ahadi; Sevil Coşgun
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Improved biodegradation of pharmaceuticals after mild photocatalytic pretreatment Water Environ. J. (IF 1.426) Pub Date : 2020-08-31 Arnoud de Wilt; Maricor J. Arlos; Mark R. Servos; Huub H. M. Rijnaarts; Alette A. M. Langenhoff; Wayne J. Parker
The combination of photocatalysis and biodegradation was investigated for the removal of nine selected pharmaceuticals as a means to reduce loadings into the environment. The combined process, consisting of a resource‐efficient mild photocatalysis and a subsequent biological treatment, was compared to single processes of intensive photocatalysis and biological treatment. The UV‐TiO2 based photocatalysis
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Online sequential extreme learning machine in river water quality (turbidity) prediction: a comparative study on different data mining approaches Water Environ. J. (IF 1.426) Pub Date : 2020-08-01 Mohammad Zounemat‐Kermani; Meysam Alizamir; Marzieh Fadaee; Adarsh Sankaran Namboothiri; Jalal Shiri
As a measure of water quality, water turbidity might be a source of water pollution in drinking water resources. Henceforth, having a reliable tool for predicting turbidity values based on common water quantity/quality measured parameters is of great importance. In the present paper, the performance of the online sequential extreme learning machine (OS‐ELM) in predicting daily values of turbidity in
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Comparison of chlorination and chloramination practices on microbial inactivation efficiencies within a scaled‐up water distribution network using central composite design Water Environ. J. (IF 1.426) Pub Date : 2020-07-06 Romana Khan; Imran Hashmi; Amrah Qureshi; Sajida Rasheed
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