Showing papers in "Water Research in 2015"

TL;DR: Understudied areas of emerging contaminant (EC) research in wastewaters and the environment are identified, and direction for future monitoring is recommended, and the fate and impact of ECs in all exposed environmental compartments are studied.

TL;DR: The issue of microplastics in freshwater systems is reviewed to summarise current understanding, identify knowledge gaps and suggest future research priorities.

TL;DR: A widespread occurrence of antibiotics and ARGs in urban and hospital wastewater and how these effluents, even after treatment, contribute to the spread of these emerging pollutants in the aquatic environment is demonstrated.

TL;DR: This review summarizes the recently developed countermeasures for improving the performance of TiO2-based photocatalytic degradation of organic pollutants with respect to the visible-light photocatallytic activity, adsorption capacity, stability and separability.

TL;DR: According to the overall situation of China, "thickening-anaerobic digestion-dewatering-land application" is the priority technical route of sludge treatment and disposal and good changes, current challenges and future perspectives of this technical route in China were analyzed and discussed in details.

TL;DR: The key to improving the rate of contaminants removal by ZVI and broadening the applicable pH range is to enhance ZVI corrosion and to enhance the mass transfer of the reactants including oxygen and H(+) to the ZVI surface.

TL;DR: Among the thermal-based technologies, membrane distillation and adsorption desalination show the most promise for enhanced performance with the availability of a waste heat source, along with a comparison of performance, water quality and energy consumption.

TL;DR: This review attempts to give the readers insights into the difficulties of incorporating inorganic nanomaterials into the organic PA layer whose thickness usually falls in a range of several-hundred nanometers and shows new possible approaches to overcome these challenges in TFN membrane fabrication.

TL;DR: It is demonstrated that aerobic granular sludge technology can effectively be implemented for the treatment of domestic wastewater with low energy usage and robust granule bed formation.

TL;DR: The structure and composition of extracellular polymeric substance excreted from anammox sludge were systematically investigated to interpret the high aggregation ability and show that hydrophobic interaction is the main force determining the aggregation of anamm ox sludge.

TL;DR: The results showed that both 2-MIB and geosmin could be degraded effectively using this process and were likely to be the main radical scavengers in natural waters when using UV/persulfate process to control 2- MIB and Geosmin.

TL;DR: Fe-impregnated biochar can be used as a low-cost filter material to remove arsenic from aqueous solutions and is suggested to be mainly controlled by the chemisorption mechanism.

TL;DR: Curtailing the release of antibiotics and heavy metals to sewage systems (or enhancing their removal in pre-treatment units) may alleviate their selective pressure and mitigate ARG proliferation in WWTPs.

TL;DR: Because biochar is cost-effective and can remain in digestate for direct use as soil amendment without separation, eco-compatible biochar may serve as a good substrate for highly-loaded digestion by inducing selective colonization of functional microbes.

TL;DR: The literature findings reveal that dEfOM removal by advanced treatment processes depends on the type and the amount of organic compounds present in the aqueous matrix, as well as the operational parameters and the removal mechanisms taking place during the application of each treatment technology.

TL;DR: At moderate Cl(-) concentrations (mM range) the SO4(-)-based process may be converted into a conventional (hydroxyl radical -based) advanced oxidation process and the conversion of SO4(-) into OH, however, is interrupted in presence of bicarbonate by scavenging of Cl.

TL;DR: Results reveal that thermo activated PS oxidation could be an efficient approach for remediation of water contaminated by SMX and related sulfonamides and transformation pathways of SMX oxidation were proposed.

TL;DR: Being compounds containing phenolic hydroxyl groups, parabens can react readily with free chlorine, yielding halogenated by-products, which are more stable and persistent than the parent species and further studies are needed to improve knowledge regarding their toxicity.

TL;DR: Characterization using Fourier transform infrared spectroscopy revealed the dominance of amide bands and/or polysaccharide-associated bands in the EPS of AnAOB and AerAOB, and can potentially expand the knowledge of the microbial aggregates responsible for autotrophic nitrogen removal.

TL;DR: The study concludes that bacterial cell destruction and water disinfection can be achieved using this newly fabricated VLD hybrid photocatalyst.

TL;DR: The human health risk assessment performed showed that appreciable risks to the consumer's health arising from exposure to trace levels of pharmaceuticals in drinking water are extremely unlikely, as RQs values were all below 0.001.

TL;DR: Polyethylene (PE), one of the most important representatives for microplastics, was chosen as an example for identification and quantification and the relatively high sample masses in TGA enable the measurement of complex matrices that are not homogenous on a small scale.

TL;DR: This study comparatively investigated atrazine (ATZ) degradation by irradiation at the wavelength of 254 nm in the presence of peroxides at various initial ATZ concentrations and oxidant dosages to improve the understanding of the effects of water constituents for ATZ degradation in the UV-based oxidation processes.

TL;DR: This review summarizes the current approaches used to assess treated wastewater quality from the chemical and ecotoxicological perspective and critically discusses the benefits and limitations of the different methodologies reviewed.

TL;DR: It is shown that the extent of sulfidation of NZVI enhances the rate of dechlorination of trichloroethylene (TCE) compared to that by unamended NZVI, and the enhancement depends on the Fe/S molar ratio.

TL;DR: The results show that sufficiently high N concentrations are needed to ensure effective P removal from wastewater due to the positive effect of N on the accumulation of P.

TL;DR: A novel simultaneous nitrification denitrification and phosphorous removal-sequencing batch reactor (SNDPR-SBR) enriched with PAOs (phosphorus accumulating organisms), DPAOs (denitrifying PAOs), and GAOs (glycogen accumulating organisms) was developed to achieve the simultaneous nutrient and carbon removal treating domestic wastewater with low carbon/nitrogen ratio.

TL;DR: In-depth analysis of operational and environmental parameters and bacterial community structure indicated the presence of three potential clusters in anaerobic digestion, determined by total ammonia concentration, free ammonia concentration and temperature, and characterized by an increased relative abundance of Bacteroidales, Clostridiales and Lactobacillales, respectively.

TL;DR: This review aims to provide a timely, current state-of-the-art in CW-MFC while exploring future challenges and research directions.

TL;DR: This comprehensive literature survey provides a thorough CNT characterization summary, a discussion of adsorption mechanisms of SOCs by CNTs and a summary of the statistical Adsorption model development efforts.