Analysis of physio chemical parameters (pH, TDS, DO, COD, Ca2＋, Na+, Mg2+, K+, SO42−, HCO3−, Cl−, NO3−N and TP) were carried out at thirty-eight (38) sampling sites during pre and postmonsoon seasons from 2016 to 2019.Results show TP varied from (0.3-1.6mg/l with an average value of 0.9 mg/l), NO3−N varied from (0.2-1.5mg/l with an average value of 0.7mg/l) and COD varied from (11-98mg/lwithan average

The problem of household air pollution (HAP) due to the use of inefficient cooking devices continues to affect the rural population of India. With the ongoing efforts to improve indoor air quality (IAQ) through intervention of clean cooking options it is imperative to assess these interventions in real world conditions before large scale rollouts. The present study is an attempt to assess the impact

Constructed wetland (CW) is one of alternative technologies to treat domestic wastewater rather than using physico-chemical processes. In this research, the efficiency of CW to treat domestic wastewater was analysed. Short-term batching-experiments of horizontal flow CW under different wastewater depth (35 cm and 45 cm) planted with native plants of Lepironia articulata and Scirpus grossus was tested

In this work we studied the effect of pre-treatment of low-grade flax product (flax tows, FTs) by cleaning it mechanically from shives and weeds, followed by mercerization with a 5% aqueous NaOH solution and ultrasonic (US) treatment (22 kHz, 500 W) in alkaline medium, on the mechanical properties and microstructure of fly ash-based geopolymer (GP) composites. A series of three-point bending flexural

While the demand for energy globally increases everyday due to economic growth, unconventional hydrocarbon resources like shale, oil sands, heavy oil and extra heavy oil play a major role in energy crisis mitigation. Heavy oil reservoirs are characterized by thick and highly viscous crude. To recover heavy oil, conventional thermal Enhanced Oil Recovery (EOR) methods are generally employed. These methods

This work aimed to investigate the impact of filling MCM-41 and SBA-15 nanoparticles (NPs) on the performance of thin film nanocomposite membranes that applied in reverse osmosis, where SBA-15 is firstly reported here for this purpose. The membranes were prepared via the interfacial polymerization reaction between m-phenylenediamine (MPD) aqueous solution and trimesoyl chloride (TMC)-isooctane solution

Amongst the main water pollutants, hexavalent chromium stand out, due to its carcinogenic and mutagenic effects to the living organisms. The aim of this work is to study the efficiency of hexavalent chromium adsorption onto granular activated carbon (GAC) and to predict the mathematical models that best describes the adsorption behavior. The effect of pH, contact time and absorbent concentration using

A fire-retardant self-healable chitosan-based gel was fabricated from water-soluble chitosan (WSC), polyvinyl alcohol-based macromonomer (PVAM), acrylic acid (AA) and copper ion (Cu(II)) through a facile approach. Energy dispersive spectroscopy analysis results confirmed that the gel coating on polyester fabric contained N and Cu. Thermogravimetric analysis results indicated that the thermal stability

Green and smart cities deliver services to their residents using mobile applications that make daily life more convenient than giving feedback to the city administration. The privacy and security of these applications are significant in providing sustainable services in a green city. The software cloning is a severe threat which may breach the security and privacy of android applications. A centrally

The current study aimed at azo dye degradation using a facultative anaerobe. A bacterial strain capable of decolorization and degradation of RB5 under static conditions was isolated from root nodules of Cactus. The strain efficiently degraded Reactive Black 5 (RB5) with metabolites detected by GCMS. The strain was identified as Proteus mirabilis and placed in phylogenetic position through 16S rRNA

With the advent of Internet of Things (IoT), even devices communicate without human intervention. Even though many cryptographic schemes provide secure communication between devices, errors happen through wireless link. Wireless communications are prone to errors such as session hijacking, masquerading, impersonation attack, Distributed Denial of Service (DDoS) attack, non-repudiation attack, tampering

Solid waste generation and treatment become one of the main concerns for the rural area. This article reviews the solid waste composition and various solid waste treatment technologies in the rural areas of India and other countries. The solid waste generated in a rural area containing more than 50% of organic waste and rest inorganic. Waste generation rate is 0.3–0.9 kg/capita/day in various rural

In this study, Pseudomonas aeruginosa immobilized Fe3O4-multiwalled carbon nanotubes ([email protected]Fe3O4-MCNT) were synthesized as a green item and applied as a bio-adsorbent to remove 2,4,6-trinitrophenol (TNP) from aqueous solution. The morphology, structure, and property of the prepared magnetic bio-adsorbent were characterized by Fourier-transform infrared spectroscopy (FT-IR), Field emission-scanning

Naphthalene, simplest polycyclic aromatic hydrocarbon (PAH), is extensively liberated in aqueous systems through wastewaters of various industries. The present study proposes the removal of naphthalene from aqueous solutions inexpensively and efficiently using high quality activated carbon synthesized from waste material, sawdust. The Brunauer–Emmett–Teller(BET) N2 surface area for sawdust activated

Cities on the Jianghan plain with a dense water network have a hot and humid climate and a long period of calm wind in the summer. Urban design guidance of a water network with a thermal environment as the starting point is a design control path that takes into account geographical features, climatic conditions and urban construction under complex constraints. Based on the current block division and

Indian energy scenario has been suffering from persistent problems of reliable supply of energy and environmental deterioration. Among various available renewable energy sources, India has abundance of bioenergy options that used since long time to meet the cooking and heating requirements. Bioenergy economy is totally dependent on market of supply and demands, interdependent to each other. However

Bioremediation through biotechnological interventions has attracted more attention among researchers in field of environmental pollution control and abatement. Various cutting-edge studies in area of protein engineering and synthetic biology offer a new platform for creation of innovative, advanced biological materials for its beneficial role in environmental pollution mitigation. Biocatalysis especially

Diuron is one of the most common herbicides used in agriculture with long persistence and high toxicity causing a certain hazard to the environment. Thus, this is necessary to control the residue levels of diuron in a natural environment. To achieve this goal, a diffusive gradient in thin-films technique (DGT), as a new method for in-situ sampling, is described in this paper, which can provide the

Immobilization of light non-aqueous phase liquids (LNAPLs) in porous sediment materials is directly associated with the physicochemical properties of both the sediment materials and the fluids. This study investigated the efficiency of carbonate (calcite) and clay (kaolinite) minerals in immobilizing the migration of LNAPL (e.g. crude-oil and diesel), through a blend of the materials with sand without

Accurate demand forecasting is critical and difficult for managers, especially for complex demand patterns. In this paper, we develop methods for demand forecasting of sparse, transient and erratic medical consumables. Firstly, combining statistical learning of historical data with basic linear regression, price discount estimates are proposed. To reduce sparse estimates, the transformation of historical

In the present study, freshly brewed tea (Camellia sinensis var. assamica) extract was concentrated using an aquaporin embedded hollow fibre membrane module (active area, 2.3 m2). The feed and draw (50g.L−1, NaCl) solutions were circulated via tube and shell side of the membrane module with flow rate of 60 and 20 L.h−1 respectively in counter-current mode. For dewatering, thermal and pressure-driven

Predictive emissions monitoring systems (PEMSs) are alternatives to continuous emissions monitoring systems (CEMSs) for monitoring air pollutants, such as NOx. Existing PEMSs and related research have focused on applying artificial neural network (ANN) algorithms. However, ANN-based models are treated as “black boxes”. Regulators and decision makers without a statistical background often have difficulty

Surface water and sediment samples from the most contaminated river in Taiwan, Houjing River, were collected for five years (2015 to 2019) and from five locations to study the contamination trends of eight heavy metals (As, Cd, Cr, Cu, Hg, Pb, Ni, and Zn). Five locations along the river were picked based on their potential of being contaminated by nearby industrial activities. The monitoring data,

The main aim of the study was the investigation of the petroleum sludge genotoxic aspect by cost-effective way. Indeed, the work was done by assessing the micronuclei frequency (MN) and mitotic index (MI) using Vicia faba roots assay, after direct exposure in solid matrix. The petroleum sludge was highly cytotoxic as its MI was much less than the one of the positive control. The petroleum sludge exhibits

Divalent copper (Cu2+) and oxytetracycline (OTC) are often encountered in industrial wastewater and municipal wastewater, whereas no systematic report has been found in evaluating the impacts of combined Cu2+ and OTC on the performance of bioreactor treatment wastewater. In the present study, the performance, nitrogen removal rate, microbial community and enzymatic activity of sequencing batch reactors

Environmentally friendly chemistry is the development trend of Baijiu production. However, there are still many problems that need to be addressed urgently in the current Baijiu production process. First, the production of Baijiu produces a large amount of brown water (Huangshui, HS), which may cause pollution to the environment. Second, the solid-state fermentation produces low amounts of alcohol

Heavy metals like chromium (Cr(VI)) and cadmium (Cd(II)) which are supposed to be indigenous components of rocks, are no longer bound to their place of origin thus manifesting significant toxic impacts on living beings. In the present study, the metal tolerance capacity of highly resistant microorganisms was harnessed individually and in the form of consortium, to remediate conundrum of pollution.

Polycyclic aromatic hydrocarbons (PAHs) removal by the tropical plant, Eleocharis ochrostachys, from contaminated water and sand using sub-surface flow system (SSF) was conducted for 80 days. E. ochrostachys was exposed to various concentrations of diesel (0.5, 1, 2 and 3% v/v). Treatments with and without the plant were conducted to analyse the effect of plants in removing PAHs. A liquid–liquid extraction

Aerobic granular sludge involves microbial community, which allows simultaneous removal of carbon, nitrogen, phosphorus, and other pollutants in a single reactor. The feasibility of aerobic granular sludge has been extensively studied for implementation in wastewater treatment for municipal, domestic and industrial wastewater including palm oil mill effluent, livestock, leachate, dairy, textile and

In this work, waste seashell (Meretrix meretrix) was used as a renewable calcium source to prepare a series of heterogeneous base catalysts for production of biodiesel, a mixture of fatty acid methyl esters (FAME), via transesterification of palm oil with methanol in a continuous-flow fixed-bed reactor. To avoid a severe pressure drop in the reactor column, the catalysts were prepared via the diss

Currently, there are concerns about the safety of carbon sequestration in the geological media. To assuage this concern, scientists and engineers have the tasks to demonstrate fool-proof and comprehensive techniques that can monitor the movement, or otherwise, concentration of the injected CO2 in the subsurface. In this work, well-defined laboratory experiments were used to demonstrate the key physico-chemical

The world requires genuine endeavors for gradual introduction of sustainable power sources to satisfy the future energy needs. Renewable energy (RE) of enormous capacity exists at various geological locations but suffers from intermittent nature. In such situations, one RE can complement other and improve the system’s efficiency. This is an example of valorization where hybridization improves the quality

The growing cells of Bacillus cereus M161, depending on the growth phase of culture was found to bioaccumulate Ni(II) from its aqueous solution to the extent of 80% wherein surface binding (∼60%) dominated over intracellular accumulation (∼20%). No growth was observed in the metal ion concentration beyond 50 mg L−1. The hydroxyl, amine, carboxylate and phosphate groups of cell surface were the most

Combining intelligence elements with product–service systems (PSS) has become a significant requirement because of the recent increase in customers’ demands for smart products and services. In order to have a successful smart PSS that satisfies customers’ requirements, investigation and evaluation of the innovation value propositions (IVPs) became one of the critical necessities. The main advantage

Polymetallic nodules on abyssal seafloor represent a major reservoir of valuable metals. Here we analysed fungal-mediated leaching of metals from nodules collected at ca. 5000 m depth in the Clarion-Clipperton Fracture Zone of the Pacific Ocean. The bioleaching efficiency of Aspergillus and a mixed cultures of A. niger and Trichoderma sp., at different growing conditions, were investigated and compared