Showing papers in "Water Research in 2012"

TL;DR: Overall, stricter nutrient management will likely be the most feasible and practical approach to long-term CyanoHAB control in a warmer, stormier and more extreme world.

TL;DR: Lead sorption capacity and mechanisms by sludge-derived biochar (SDBC) were investigated to determine if treatment of acid mine drainage containing metals with SDBC is feasible, and may suggest that the application ofSDBC is a feasible strategy for removing metal contaminants from acid solutions.

TL;DR: A review of developing antifouling RO membranes in recent years, including the selection of new starting monomers, improvement of interfacial polymerization process, surface modification of conventional RO membrane by physical and chemical methods as well as the hybrid organic/inorganic RO membrane are presented.

TL;DR: In this article, a single-stage batch absorber design for the Congo red adsorption onto pine cone biomass was presented based on the Freundlich isotherm model equation.

TL;DR: An overview on the potential treatments to overcome the environmental problems associated to the direct discharge of RO concentrates is given and recent studies that are mainly focused on reducing the organic pollutant load through the application of innovative advanced oxidation technologies are addressed.

TL;DR: This Review examines how several cyanobacterial eco-physiological traits, specifically, the ability to grow in warmer temperatures; buoyancy; high affinity for, and ability to store, phosphorus; nitrogen-fixation; akinete production; and efficient light harvesting, vary amongst cyanobacteria genera and may enable them to dominate in future climate scenarios.

TL;DR: In this article, surface sediments from 42 stations covering both riverine and marine regions of the northwestern coast of Bohai Bay were analyzed for heavy metal content and fractionation (Cd, Cr, Cu, Ni, Pb and Zn).

TL;DR: This is the first study to comprehensively investigate the antibiotic resistance profile by analyzing the species of antibiotic-resistant bacteria and adopting qualitative and quantitative methods to investigate ARGs at a typical aquaculture area in northern China.

TL;DR: In this review, an overview is provided of the photochemical reaction parameters (quantum yield, molar absorption, OH radical reaction rate constant) of more than 100 organic micropollutants that allow for a prediction of organic contaminant removal by UV advanced oxidation systems.

TL;DR: The purpose of this document is to contribute to sustainable stormwater management, informing on the most relevant factors that should be assessed and their interaction, and a flowchart has been produced and is presented, indicating the mostrelevant steps, processes and information that should been taken into account in urban development.

TL;DR: N2O production via hydroxylamine oxidation is favored at high ammonia and low nitrite concentrations, and in combination with a high metabolic activity of ammonia-oxidizing bacteria (at 2 to 3 mgO2/l); the contribution of nitrifier denitrification by AOB increased at higher nitrite and lower ammonia concentrations towards the end of the experiment.

TL;DR: The ANAMMOX performance recovered under sulfide-S level of 8 mg L(-1) with a steady NRR increasing speed, linear relationship between the NRR and operation time, and the synchronic reduce in the specific ANAM MOX activity and the biomass extended the apparent doubling time of the nitrogen removal capacity and decreased biomass growth rate.

TL;DR: The highlight of this paper is to point out the possibility of the micropollutants degradation in spite of the presence of DOM in much higher concentrations.

TL;DR: This study demonstrated that inexpensive, highly reproducible, high performance and scalable air-cathode can be produced by rolling method without using noble metal and expensive binder.

TL;DR: Ammonium recovery and simultaneous energy production from urine was proven possible by this novel approach to simultaneously produce energy and recover ammonium.

TL;DR: The major factor in the removal of FQs in the STP was sorption to sludge, which was not governed by hydrophobic interactions, and a significant positive correlation was found between removal efficiencies and K(d) of F Qs.

TL;DR: In this article, the physicochemical properties of IOM and EOM of Microcystic aeruginosa under an exponential growth phase (2.01×10(11)/L) were comprehensively characterized.

TL;DR: The results indicated that PFOA (100 mL of 100 mg/L) degradation ratio and defluorination ratio achieved 98.8% and 73.9%, respectively, at the optimal conditions after 90 min electrolysis, under which the degradation rate constant and the degradation half-life were under this optimal condition.

TL;DR: It is proved that the enhancement of H(2) production was due to the ability of MECs to use a wider range of organic matter in WAS than in fermentation, and Syntrophic interactions between phylogenetically diverse microbial populations in anodophilic biofilms were found to drive the efficient cascade utilization of organic Matter in WAS.

TL;DR: The overall performance demonstrates that polyelectrolytes of PAA-Na series are promising as draw solutes, and the new concept of using polyelectralytes as drawsolutes in FO processes is applicable.

TL;DR: Phenol degradation pathway in both systems, TiO(2)/UV and doped-TiO( 2)/Vis, are described and various mechanisms of phenol photodegradation (indicating the intermediates products) and formation of OH radicals are discussed.

TL;DR: This study investigates the fate of trace organic chemicals in three full-scale reclamation plants using ozonation followed by biological activated carbon filtration to treat wastewater treatment plant effluents to reduce the discharge of TrOCs into the environment or their presence in water recycling schemes.

TL;DR: Result of UF experiments indicated that dEOM which had a higher organic content and stronger hydrophilicity caused more severe flux decline and reversible fouling, and that bEOM led to slower flux decline but more irreversible fouling due to less electrostatic repulsive and more hydrophobic adhesion.

TL;DR: More effort is needed to understand the relationship between rainfall patterns and cyanobacterial bloom dynamics, and in particular toxin production, to be able to assess and mediate the significant threat cyanobacteria blooms pose to the authors' water resources.

TL;DR: Wang et al. as mentioned in this paper used fuzzy membership analysis and multivariate statistics to assess the water quality, surface water and groundwater were sampled and analyzed by fuzzy membership and multiivariate statistics, and the water samples were grouped into four categories according to irrigation water quality assessment diagrams of USDA.

TL;DR: The difference in the separation behaviour of these hydrophobic trace organics in the FO (using NaCl the draw solute) and RO modes could be explained by the phenomenon of retarded forward diffusion of solutes.

TL;DR: The developed QSARs and the Group Contribution Method could be used to predict the k- values for various emerging organic micropollutants and how the uncertainty in the predicted k-values affects the accuracy of prediction for micropolutant elimination during oxidative water treatment is discussed.

TL;DR: Thiol-functionalised silica-coated magnetite nanoparticles were found to be almost spherical with a uniform mesoporous structure with a pore size of ∼2.1nm and strongly responsive to an external magnetic field making separation from solution possible in less than 1min.

TL;DR: Toxicological studies on PET-bottled water and chemical compounds that may be present therein are surveyed, and differences can be explained by the wide variety of analytical methods, bioassays and exposure conditions employed.

TL;DR: This study provides results on stormwater pollution in Paris and its suburbs from three separate storm sewers, showing that the stormwater had been contaminated by 55 chemical substances out of the 88 investigated.