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Removal of pharmaceuticals in urban wastewater: High rate algae pond (HRAP) based technologies as an alternative to activated sludge based processes
10.1016/j.watres.2018.03.072 2018-03-29 Microalgae biotechnology is a promising tool for many applications, including the elimination of nutrients and other contaminants from wastewater. In this work, we measured the removal efficiency of two wastewater treatment processes: an activated-sludge base... |
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Pesticide degradation and export losses at the catchment scale: In sights from compound-specific isotope analysis (CSIA)
10.1016/j.watres.2018.03.061 2018-03-29 Although pesticides undergo degradation tests prior to use, determining their export, degradation and persistence under field conditions remains a challenge for water resource management. Compound specific isotope analysis (CSIA) can provide evidence of conta... |
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Degradation and metabolite formation of 17ß-estradiol-3-glucuronide and 17ß-estradiol-3-sulphate in river water and sediment
10.1016/j.watres.2018.03.071 2018-03-28 Laboratory degradation tests with two model estrogen conjugates, 17ß-estradiol-3-glucuronide (E2-3G) and 17ß-estradiol-3-sulphate (E2-3S), using river water and sediment as inoculum under aerobic conditions were investigated. Throughout the 14-day incubation,... |
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CFD simulation of fluid dynamic and biokinetic processes within activated sludge reactors under intermittent aeration regime
10.1016/j.watres.2018.03.067 2018-03-28 Due to the aeration system, biological reactors are the most energy-consuming facilities of convectional WWTPs. Many biological reactors work under intermittent aeration regime; the optimization of the aeration process (air diffuser layout, air flow rate per ... |
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Sediment diffusion method improves wastewater nitrogen removal in the receiving lake sediments
10.1016/j.watres.2018.03.068 2018-03-27 Sediment microbes have a great potential to transform reactive N to harmless N2, thus decreasing wastewater nitrogen load into aquatic ecosystems. Here, we examined if spatial allocation of the wastewater discharge by a specially constructed sediment diffuser... |
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Using models of farmer behavior to inform eutrophication policy in the Great Lakes
10.1016/j.watres.2018.03.065 2018-03-27 To address the management of eutrophication in aquatic systems, the behavioral mechanisms that drive change at the individual level must be considered when designing policy interventions. This analysis identifies the beliefs that are critical to behavioral ch... |
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A microbial electro-Fenton cell for removing carbamazepine in wastewater with electricity output
10.1016/j.watres.2018.03.066 2018-03-27 High electrical energy is required for the electro-Fenton process to remove pharmaceuticals and personal care products (PPCPs) in wastewater. The aim of this study was to develop a novel and more cost-effective process, specifically a microbial electro-Fenton... |
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Micropollutants removal and health risk reduction in a water reclamation and ecological reuse system
10.1016/j.watres.2018.03.059 2018-03-27 As reclaimed water use is increasing, its safety attracts growing attention, particularly with respect to the health risks associated with the wide range of micropollutants found in the reclaimed water. In this study, sophisticated analysis was conducted for ... |
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Understanding human infectious Cryptosporidium risk in drinking water supply catchments
10.1016/j.watres.2018.03.063 2018-03-27 Treating drinking water appropriately depends, in part, on the robustness of source water quality risk assessments, however quantifying the proportion of infectious, human pathogenic Cryptosporidium oocysts remains a significant challenge. We analysed 962 sou... |
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Trade-offs in ecosystem impacts from nanomaterial versus organic chemical ultraviolet filters in sunscreens
10.1016/j.watres.2018.03.062 2018-03-27 Both nanoparticulate (nZnO and nTiO2) and organic chemical ultraviolet (UV) filters are active ingredients in sunscreen and protect against skin cancer, but limited research exists on the environmental effects of sunscreen release into aquatic systems. To exa... |