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A comprehensive pilot study was carried out to experimentally assess the potential of newly developed treatment trains integrating two-stage AOPs and biofiltration to reach potable reuse water quality standards from municipal wastewater. The processes consisted of a two-stage AOPs with (carbon or limestone) biofiltration, the first AOP (O/HO) serving as pre-treatment to biofiltration and the second AOP (UV/HO) serving as post-biofiltration finishing step to ensure advanced disinfection. A comprehensive monitoring campaign was put in place resulting from the combination of targeted, non-targeted and suspect screening measurements. It was found that 13 organic micropollutants were detected from a list of 219 suspects although at ng/L level only. For the treatment conditions piloted in this study (O = 13 ± 0.5 mg/L, HO = 11 ± 0.4 mg/L for the O/HO process, and UV = 410 ± 63.5 mJ/cm, HO = 5 mg/l for the UV/HO process), it was possible to estimate the overall removal efficacy for each unit process, which was found to follow this order: RO (99%) > BAC (87%) > O-HO (78%) > BAL (67%) > UV/HO (43%) > AOP contact chamber (19%) > UF(0%), with the treatment train integrating two AOPs and granular biofiltration with activated carbon (O/HO + BAC + UV/HO) showing superior performance with a 99% abatement in total micropollutants. No ecotoxicologically-positive response was generally observed for any of the effluent samples from the tested trains, even when pre-concentration factors up to 100-1000 times were employed to increase the sensitivity of the bioassay methods.
This article was published in the following journal.
The main objective of this study was to compare the efficacy of ozone (O) and O with granular activated carbon (GAC) (O/GAC) at pilot-scale for the enhanced removal of micropollutants (MPs) from waste...
Organic micropollutants (OMPs) are frequently detected in water and wastewater, and have attracted wide attention due to potential adverse effects on ecosystems and human health. In this work, mangane...
Strategies to determine the removal efficiency of micropollutants in wastewater treatment plants (WWTPs) are widely discussed. Especially the evaluation of the potential benefit of further advanced tr...
Comparison of Toxicity-Weighted Disinfection Byproduct Concentrations in Potable Reuse Waters to Conventional Drinking Waters as a New Approach to Assess the Quality of Advanced Treatment Train Waters.
Advanced treatment trains based on oxidation, biofiltration and/or granular activated carbon (Ox/BAF/GAC) are an attractive alternative to those based on microfiltration, reverse osmosis and advanced ...
Lab-scale membrane bioreactors (MBRs), with aerated activated sludge and internal microfiltration module, were used for the treatment of municipal wastewater containing high, yet environmentally relev...
This study uses a drug called dasatinib to produce an anti-cancer effect called large granular lymphocyte cellular expansion. Large granular lymphocytes are blood cells known as natural ki...
The aim of this intervention is to test if the investigator, by offering a financial incentive to smokers who abstinence from smoking, can: 1. recruit more smokers with low socioeconomi...
Tropical diseases are continuously on the rise throughout the world as they are spreading and manifesting in various locations globally. The more prominent vector tends to be the mosquito ...
RATIONALE: Drugs used in chemotherapy, such as methotrexate and fludarabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from...
T Cell Large Granular Lymphocyte (T-LGL) Lymphoproliferative Disorders are a heterogeneous group of uncommon diseases which may involve a polyclonal or a monoclonal T cell population, whic...
White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES).
An isomer of butanol that contains a tertiary butyl group that consists of three methyl groups, each separately attached to a central (tertiary) carbon.
Edible or potable substances.
A spectrum of disorders characterized by clonal expansions of the peripheral blood LYMPHOCYTE populations known as large granular lymphocytes which contain abundant cytoplasm and azurophilic granules. Subtypes develop from either CD3-negative NATURAL KILLER CELLS or CD3-positive T-CELLS. The clinical course of both subtypes can vary from spontaneous regression to progressive, malignant disease.
Hospitals controlled by the city government.