Showing papers in "Chemosphere in 2015"

TL;DR: An overview of biochar production technologies, biochar properties, and recent advances in the removal of heavy metals, organic pollutants and other inorganic pollutants using biochar is provided.

TL;DR: The results showed that the sewage was an important repository of the resistance genes, which need to be effectively treated before discharge into the natural water body.

TL;DR: More sorption data using biochar especially at demonstration-scale, for treating potable and reuse water in adsorption/filtration applications will help establish the potential of biochars to serve as surrogates for activated carbons.

TL;DR: The isotherm study showed that the sorption of PFOS and FOSA on microplastics is highly linear, and it indicated that partition by hydrophobic interaction is the predominant sorption mechanism.

TL;DR: The involvement of LaCl3 in pyrolysis could advance the temperature of maximum mass loss by 10 °C compared with oak sawdust, and potentially promoted biochar yield and increased basic functional groups on La-biochars were beneficial to improve NO3(-) and PO4(3-) adsorption.

TL;DR: An integrated system of anammox-based process and microbial fuel cell is proposed for sustainable and energy-positive wastewater treatment and researches on technological development for solving remaining problems are summarized.

TL;DR: Control strategies for obtaining partial nitrification are mainly focused on the pH, temperature, dissolved oxygen concentration, real-time aeration control, sludge retention time, substrate concentration, alternating anoxic and aerobic operation, inhibitor and ultrasonic treatment.

TL;DR: The potential of bioaugmentation to solve practical problems in wastewater treatment plants, and enhance removal efficiency can now be enhanced in order to take advantage of important advances in the fields of microbial ecology, molecular biology, immobilization techniques and advanced bioreactor design.

TL;DR: ZIF-67 was able to remove MG from the aquaculture wastewater, in which MG can be typically found, and could be conveniently regenerated by washing with ethanol and the regeneration efficiency could remain 95% up to 4 cycles of the regeneration.

TL;DR: Ability to recover other elements such as nitrogen and potassium, as well as enhance favourability on concentrated wastewaters may enhance the desirability of partitioning in the longer term.

TL;DR: The study revealed that elevated Cr concentrations reduced the plant growth rate and biomass as compared to respective controls in all the cultivars and this decline was more obvious in Zheda 622, which was found to be more sensitive under Cr-toxicity.

TL;DR: Supporting NZVI on sepiolite had the potential to become a promising technique for in situ heavy metal-contaminated groundwater remediation and both Langmuir isotherm model and Freundlich isotherms model were proposed.

TL;DR: This review presents the findings of studies of the interaction of ENPs and NOM, and the possible effects on nanoparticle stability and the toxicity of these materials in the environment.

TL;DR: This investigation on deep eutectic solvents provides insight into the structure-based understanding of their ecotoxicological behavior and not all DESs can be considered readily biodegradable.

TL;DR: The present overview dissects the heterogeneous catalysts and the influences of different operational parameters, followed by the discussion on the kinetics, mechanism, economic feasibility and future trends of this integrated technology.

TL;DR: An initial screening of the marine environmental hazard properties of leachates from weathering plastics to the marine harpacticoid copepod [Crustacea] Nitocra spinipes demonstrates that leachate from different plastics differ in toxicity to N. spinipes and that the toxicity varies under simulated weathering.

TL;DR: In this paper, the authors investigated the impact factors and the mechanism of cadmium adsorption on biochar derived from municipal sewage sludge and found that an appropriate dosage of biochar is sufficient; in the experiment, 2% is the optimal dosage for the largest removal capacity.

TL;DR: New insights are provided into the fate of PPCPs during CAS wastewater treatment by evaluating the degradation kinetics and sorption and the results may explain the consistent levels of highly degradable P PCPs being emitted from WWTPs worldwide.

TL;DR: The adsorptive properties of graphene oxide (GO) were characterized, and the binding energies of diclofenac (DCF) and sulfamethoxazole (SMX) on GO adsorption were predicted using molecular modeling.

TL;DR: The receptor model, Pb isotopic mixing model and Pb source by isotopic model were developed to quantify the source contribution for typical HMs in urban park soils of Xiamen, a representative megacity in southeast China.

TL;DR: Bioaccumulation patterns showed that dust exposure is one of the major routes into human body for Cd, Pb, Co, Mn and Cr, while the burden of Zn, Cu, and Ni can be more linked to dietary sources.

TL;DR: Overall, SUVA is a good indicator for the formation of unknown DBPs, which indicates that UV absorbing compounds and aromatic carbon within NOM are the primary sources of precursors for unknownDBPs.

TL;DR: Several prospective research hypotheses including the development of new analytical methods to monitor these PCs/TPs and their metabolites, highly resistant microbial strains, and mixture toxicity as a consequence of pharmaceutical contamination in these emerging pharmaceutical exporters have also been proposed based on the available literature.

TL;DR: PFAS concentrations in water showed no significant decreasing trend between 2009 and 2013, which indicates that Stockholm Arlanda Airport may be an important source for long-term contamination of the nearby environment with PFASs.

TL;DR: Investigation of the retention mechanisms of ammonium in aqueous solution by using progressively oxidized maple wood biochar at different pH values found Adsorption was not fully reversible in water, and less than 27% ammonium was desorbed in water in two consecutive steps than previously adsorbed, for biochars with a pH below 7, irrespective of oxidation.

TL;DR: It is shown that exposing fathead minnows (Pimephales promelas) to a concentration of metformin found in wastewater effluent causes the development of intersex gonads in males, reduced size of treated male fish, and reduction in fecundity for treated pairs.

TL;DR: The results of risk assessment of the antibiotics on aquatic organisms suggested that sulfamethoxazole, ofloxacin, ciprofloxac in the surface water of Lake Chaohu and inflowing rivers might pose a high risk to algae and plants.

TL;DR: Evidence is provided that the historical use of AFFF at the site have contaminated an aquifer that will require constant PFAA purification before being used for drinking water production, and that a former airfield, abandoned since 1994, may still pose an environmental and human health concern.

TL;DR: According to the three-dimensional fluorescence (EEM) results, the aromatic protein-like and tryptophan protein- like substances were more abundant in the granular sludge than that in flocs, suggesting they are the key components in the structural stability of granularsludge.

TL;DR: The little data about pharmaceutical residue contamination in African water bodies motivated this study on the occurrence of pharmaceutical residues in the water and sediment of Msunduzi River in the KwaZulu-Natal province of South Africa; and in the Darvill wastewater treatment plant found in Msundyuzi catchment.