232 Articles found
IWA Publishing Articles
-
Study of different carbon materials for their use as bioanodes in microbial fuel cells
Microbial fuel cells (MFCs) are capable of removing the organic matter contained in water while generating a certain amount of electrical power at the same time. One of the most important aspects in the operation of MFCs is the formation of ...
-
Influence of temperature on the activity of anammox granular biomass
The aim of this study was to determine a short-term and long-term effect of temperature on the anammox rate and determination of temperature coefficients in the Arrhenius and Ratkowsky equations. The short-term effects of temperature on the ...
-
Breakthrough curves of oil adsorption on novel amorphous carbon thin film
A novel amorphous carbon thin film (ACTF) was prepared by hydrolyzing wood sawdust and delignificating the residue to obtain cellulose mass that was subjected to react with cobalt silicate nanoparticle as a catalyst under the influence of sudden ...
-
Evaluation of treatment potential, biogas generation and sludge properties of an anaerobic claridigester
The anaerobic process for the treatment of municipal and industrial wastewater has been in practice for over a century. Apart from treatment of wastewater, the process has the advantage of lower sludge and biogas production that can save energy. ...
-
Understanding women's decision making power and its link to improved household sanitation: the case of Kenya
Women experience many motivational drivers for improving sanitation, but it is unclear how women's role in household decision making affects whether a household opts for better sanitation. We analyzed the Kenya Demographic and Health Survey ...
-
Photocatalytic hydrogen production of the CdS/TiO2-WO3 ternary hybrid under visible light irradiation
An attractive and effective method for converting solar energy into clean and renewable hydrogen energy is photocatalytic water splitting over semiconductors. The study aimed at utilizing organic sacrificial agents in water, modeled by formic ...
-
Modeling future changes in the North-Estonian hydropower production by using SWAT
Climate change is altering temperature, precipitation, and other climatic parameters, affecting sectors dependent on water resources, e.g. energy production. The purpose of this study is to analyze the possible influences of climate change on ...
-
Parametric and energy consumption optimization of Basic Red 2 removal by electrocoagulation/egg shell adsorption coupling using response surface methodology in a batch system
In this study, response surface methodology (RSM) model was applied for optimization of Basic Red 2 (BR2) removal using electrocoagulation/eggshell (ES) coupling process in a batch system. Central composite design was used to evaluate the ...
-
The effect of water hammer on a confined air pocket towards flow energy storage system
This research studies the behavior of a fully confined air pocket under the effect of water pulses induced by a water hammer phenomenon using several experimental tests in a pressurized transient condition. A compressed air vessel (CAV) has been ...
-
Probability distribution of turbulence in curvilinear cross section mobile bed channel
The present study investigates the probability density functions (PDFs) of two-dimensional turbulent velocity fluctuations, Reynolds shear stress (RSS) and conditional RSSs in threshold channel obtained by using Gram–Charlier (GC) series. The GC ...
-
Adsorption of crystal violet with diatomite earth&carbon by a modification of hydrothermal carbonization process
The high colority and difficulty of decolorization are the most important tasks on printing and dyeing wastewater. This study investigates the ability of diatomite earth&carbon (DE&C) as an adsorbent to removal crystal violet (CV) from ...
-
Effect of operational parameters and kinetic study on the photocatalytic degradation of m-cresol purple using irradiated ZnO in aqueous medium
A detailed investigation of photocatalytic degradation of m-cresol purple (mCP) dye has been carried out in aqueous heterogeneous medium containing zinc oxide (ZnO) as the photocatalyst in a batch reactor. The effects of some parameters such as ...
-
Interaction relationship between urban domestic energy consumption and water use – a case study of Beijing and Shanghai
Energy consumption and water use are inextricably linked. Combining research on energy consumption and water use in an urban context provides a scientific basis for the integrated planning of energy and water supply systems. Domestic energy and ...
-
Treatment of hydraulic fracturing wastewater by wet air oxidation
Wastewater produced by hydraulic fracturing for oil and gas production is characterized by high salinity and high chemical oxygen demand (COD). We applied a combination of flocculation and wet air oxidation technology to optimize the reduction ...
-
Evaluation of anaerobic digestion processes for short sludge-age waste activated sludge combined with anammox treatment of digestate liquor
The need to reduce energy input and enhance energy recovery from wastewater is driving renewed interest in high-rate activated sludge treatment (i.e. short hydraulic and solids retention times (HRT and SRT, respectively)). This process generates ...
-
Effect of thermal and alkaline pretreatment of giant miscanthus and Chinese fountaingrass on biogas production
Giant miscanthus (Miscanthus×giganteus) and Chinese fountaingrass (Pennisetum alopecuroides (L.) Spreng), cultivated for landscaping and soil conservation, are potential energy crops. The study investigated the effect of combined thermal and ...
-
Hydrophobic aggregation of fine particles in high muddied coal slurry water
The hydrophobic aggregation of fine particles in high muddied coal slurry water in the presence of four quaternary ammonium salts of 1231(dodecyl trimethyl ammonium chloride), 1431(tetradecyl trimethyl ammonium chloride), 1631(cetyl trimethyl ...
-
Variability of GPS water vapor associated with warming activity in Peninsular Malaysia during the period of 2008–2011
This study utilizes the precipitable water vapor (PWV) parameter retrieved from ground-based global positioning system (GPS) to detect warming activity in Peninsular Malaysia from 2008 to 2011. Daily average of GPS PWV and surface meteorology ...
-
Recovering biomethane and nutrients from anaerobic digestion of water hyacinth (Eichhornia crassipes) and its co-digestion with fruit and vegetable waste
The potential to recover bioenergy from anaerobic digestion of water hyacinth (WH) and from its co-digestion with fruit and vegetable waste (FVW) was investigated. Initially, biogas and methane production were studied using the biochemical ...
-
Decolorization and biogas production by an anaerobic consortium: effect of different azo dyes and quinoid redox mediators
The inhibitory effect of azo dyes and quinoid compounds on an anaerobic consortium was evaluated during a decolorization process and biogas production. In addition, the impact of quinoid compounds such as lawsone (LAW) and ...