In the present work, the influence of the water matrix on the removal of antibiotic resistant bacteria during the electro-disinfection with diamond anodes was studied, paying special attention to the disinfection efficiency and the prevention of the formation of hazardous disinfection by-products. This will allow to evaluate if electrolysis is more suitable as pretreatment of the main pollution source

Research concerning the design and development of non-leaching antibacterial agents for quick water decontamination is in great demand for their effective re-use and minimizing biocide contamination in water. Herein, we have synthesized two bactericidal polymers based on guanidine backbone (henceforth called GN) and sulphonium backbone (henceforth called SP). We explored their uniqueness in deriving

Gravity-driven membrane (GDM) systems are promising for decentralized drinking water treatment at the point of use due to their treatment efficiency and low maintenance requirements. To further improve permeate quality in terms of dissolved organic carbon (DOC), adsorption onto activated carbon has been proposed as a pretreatment. In the present study, a novel GDM system with integrated granular activated

As an important water resource, brackish water has been extensively utilized in the industry. However, there are few cases of municipal potable water treatment plants that use low chloride content brackish water as the source. In this paper, the brackish water treatment efficiency of ultrafiltration (UF)/nanofiltration (NF) dual-membrane process was evaluated in a municipal potable water treatment

In this study, Ti3C2Tx (MXene) was used to enhance the fouling resistance of FO flat-thin film membranes. Mixed-matrix Ti3C2Tx (MXene)/ cellulose acetate (CA) membranes with different (wt%) loading of MXene were fabricated by covalent crosslinking followed by phase inversion protocol. The fabricated membranes were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy

In this study, cheese whey – a nutrient-rich industrial waste was utilized as a low-cost fermentation medium for the growth of Bacillus subtilis and nattokinase production. The nattokinase yield (caseinolytic activity) using cheese whey (789.93 U ml−1) was 5 %–7 % less compared to glucose- or lactose-based synthetic media (833.44 and 850.84 U ml−1, respectively). Effect of nitrogen supplementation

The present study investigated the reverse electrodialysis (RED) energy generation potential of treated wastewaters from Ataköy and Ambarlı wastewater treatment plant (WWTP) when discharged at the Marmara Sea. The good quality of the WWTP effluents and their suitable conductivity (around 1 mS.cm−1) resulted in a power density around 0.5 W.m-2 when they are operated together with the Marmara Sea in

The world is facing the third coronavirus caused pandemic in less than twenty years. The SARS-CoV-2 virus not only affects the human respiratory system, but also the gastrointestinal tract. The virus has been found in human feces, in sewage and in wastewater treatment plants. It has the potential to become a panzootic disease, as it is now proven that several mammalian species become infected. Since

Tetracycline (C22H24N2O8) is a well-known emerging contaminant that is generally used in pharmaceuticals and personal-care products. Traditional biological treatment technologies are inadequate for quickly and completely removing tetracycline from wastewater; hence, the ozonation investigated in this study is preferable. The effects of several reaction parameters, such as tetracycline concentration

The operation of Wastewater Treatment Plants (WWTPs) depend not only on the influent characteristics and air blown into the tank, but also the design of the tank structure. In this paper, the mathematical model of the aeration tank is derived by the dynamic equations of physical and biological processes. It is aimed to obtain an effective alternative model for secondary treatment. In the conventional

Saigon river is the primary water supply source for Ho Chi Minh City, Vietnam. Currently, the formation of harmful disinfectant by-products (DBPs) in the piped water is elevating due to the increase in both organic matter pollution in Saigon river and chloride usage at water treatment plants (WTPs). To provide safe drinking water, the WTPs should upgrade their existing conventional surface water treatment

Agro-industrial wastes can become organic aids for coagulation, being an alternative to metallic coagulants. In this study ripe okra (Abelmoschus esculentus) and passion fruit (Passiflora edulis) seeds were prepared, characterized and used as natural coagulants in experiments of coagulation/dissolved air flotation (C/DAF) treating synthetic dairy wastewater (SDW). C/DAF was carried out using central

The potential of a novel Fe/EDTA/carbonate-based scrubbing process for the simultaneous removal of H2S and CO2 from biogas was studied by evaluating the influence of Fe/EDTA molarity (M), carbonate concentration (IC), biogas (B), air (A) and liquid (L) flow rates on biogas upgrading performance using a Taguchi L16(45) experimental design. The ANOVA demonstrated that molarity of the Fe/EDTA solution

In this work, a statistical stability metric and novel hybrid statistical-machine learning ammonia forecasting model are developed to improve the accuracy and precision of municipal wastewater treatment. Aeration for biological nutrient removal is typically the largest energy expense for municipal wastewater treatment plants (WWTP). Ammonia-based aeration control (ABAC) is one approach designed to

In this study, the abundance and structure of bacterial and denitrifying functional genes of epiphyton and bacterioplankton in pilot-scale surface flow constructed wetlands treating different ammonium nitrogen concentrations (∼0.2, 40, 170, and 230 mg/L) of swine wastewater were investigated by quantitative PCR. The gene abundance of denitrifiers in epiphyton outnumbered the gene abundance of denitrifiers

The abundances of the napA, narG, nirK, nirS, norB, nosZI and nosZII genes, involved in all the steps of the bacterial denitrification pathway, were monitored by a quantitative PCR approach in 4 municipal wastewater treatment plants (WWTPs). The absolute and relative abundances of narG were greater than those of napA in all the surveyed facilities, while few significant differences were found in the

Rapid small-scale column tests (RSSCTs) have been previously used to predict the effluent concentration of a single nutrient in large filters with good accuracy. However, in drainage waters originating from heavy textured soils, where there is a need for in-ditch filters to retain both dissolved reactive phosphorus (DRP) and ammonium (NH4) simultaneously, the suitability of a RSSCT approach to model

The performance of a continuous system that sequentially couples a column filled with zero-valent iron with a photo-Fenton reactor was evaluated under mild acidic conditions. Studies were conducted to evaluate the better coupling strategy between each treatment module and to analyze the effects of several operational parameters on the system behaviour. The azo dye Acid Black 1 was chosen as model pollutant

This study aimed at understanding how bacterial communities fluctuate and correlate with wastewater treatment plant (WWTP) efficiency over a ten-month period. Illumina sequencing of 16 s rRNA gene variable regions was performed on genomic DNA extracted from aeration tank samples collected twice a week and analyzed using the Bioinformatics Tool Quantitative Insights into Microbial Ecology 2 (QIIME2)

The planning and construction of large-scale wastewater infrastructure, such as sewerage networks and wastewater treatment plants, is undertaken by the public sector or by publicly regulated monopolies. Only on smaller scales can infrastructure be managed by private companies or through local collective initiatives. Within this framework of water cycle management, there is an increasing movement of

Results are reported of a systematic study on the performance of an advanced oxidation treatment that couples anodic oxidation (AO) and in situ generation of strong oxidants (Cl2, S2O82−) in the electrolytic cell, for removing benzene, toluene, ethyl benzene, and xylenes (i.e. BTEX) from high salinity waters. A batch-mode pilot electrochemical unit equipped with a boron-doped diamond (BDD) anode and

Water quality of River Tel and bank filtrate at Belgaon, India were studied for a period of 12 months to assess the effectiveness of river bank filtration (RBF). Escherichia coli (E. coli) were found to be successfully removed from surface water during river bank filtration. As limited work has been done regarding the use of two models i.e. Soil conservation service curve number (SCS-CN) approach and

In this investigation, an attempt has been made to evaluate the performance of a novel Semifluidized bed adsorption column for the removal of divalent heavy metal ions from synthetic wastewater. Low cost low density adsorbent has been synthesized from Sugarcane bagasse based biochar and Na-Alginate. The biochar has specific surface area of 391.42 m2/g and it’s composite has 200.14 m2/g respectively

This investigation reveals the possibility of effective photocatalytic purification of aqueous solutions of organic pollutants in an experimental unit with an automatically cleaned photocatalytic coating. The automatic cleaning process is realizing by friction of rotating cylindrical photocatalytic coating carriers against a replaceable brush module. Based on data on phase analysis and sorption activity

Reduced membrane rejection performance has been a big challenge for the membrane industry when dealing with concentrated complex feed solution. In this study, a robust mixed matrix membrane (MMM) of polyimide/graphene oxide (PI/GO) was systematically fabricated and modified using highly hydrophilic ethylenediamine (EDA) cross-linker under control conditions and tested for the recovery of succinate