نتایج جستجو برای: dbps
تعداد نتایج: 390 فیلتر نتایج به سال:
Formation of disinfection byproducts (DBPs) in drinking water treatment (DWT) as a result pathogen removal has always been an issue special attention the preparation safe water. DBPs are formed by action oxidant-disinfectant chemicals, mainly chlorine derivatives (chlorine, hypochlorous acid, chloramines, etc.), that react with natural organic matter (NOM), humic substances. usually refractory ...
The high chlorine dosages in wastewater treatment plants during the COVID-19 pandemic may result increased formation of disinfection by-products (DBPs), posing great threat to aquatic ecosystem receiving water body and public health downstream area. However, limited information is available on effect biological processes CX3R-type DBPs. This study investigated oxidation ditch (OD) anaerobic-ano...
DNA-binding proteins (DBPs) not only play an important role in all aspects of genetic activities such as DNA replication, recombination, repair, and modification but also are used key components antibiotics, steroids, anticancer drugs the field drug discovery. Identifying DBPs becomes one most challenging problems domain proteomics research. Considering high-priced inefficient experimental meth...
The stability of drinking water distribution systems and the management disinfection by-products are critical to ensuring public health safety. In this paper, interrelationships between corrosion products in network, microbes, quality elucidated. This review also discusses mechanisms through which corrosive from piping network influence decay disinfectants formation harmful by-products. Factors...
dissolved organic nitrogen (don) can react with disinfectants to produce numerous disinfectionbyproducts (dbps), particularly nitrogen-containing dbps (n-dbps), and produce serious adverse effectson public health. widely used biological processes in drinking water treatment can increase don in effluents,and enhance these ill effects. this study investigated don in a full-scale two-stage ozonati...
BACKGROUND Past studies have examined the effects of maternal exposure to water chlorination disinfection by-products (DBPs), such as trihalomethanes (THMs) and haloacetic acids (HAAs) during pregnancy. However, no human-based study has yet evaluated the effect of emerging DBPs, such as haloacetaldehydes (HAs) and haloacetonitriles (HANs) on small-for-gestational-age (SGA) status in newborns. ...
The human body is most likely to ingest microbes or disinfection by-products (DBPs) in drinking water. More than 80% of water treatment plants use chlorine as a disinfectant. Approximately 14–16% of the bladder cancers in Ontario, Canada, are attributable to the drinking waters containing relatively high levels of chlorinated by-products (CBPs). In recent studies, in addition to the chronic can...
Performance of a Hybrid ED–NF Membrane System for Water Recovery Improvement via NOM Fouling Control
Natural organic matter (NOM) complicates water treatment and causes formation of disinfection byproducts (DBPs). NOM is removed well by nanofiltration (NF) but extensive membrane fouling, especially in the presence divalent cations. This research investigated a hybrid electrodialysis-nanofiltration (ED–NF) system to treat freshwaters containing hardness NOM. ED removes most ions little no NOM, ...
Abstract Ca2+-insensitive and -sensitive E1 subunits of the 2-oxoglutarate dehydrogenase complex (OGDHC) regulate tissue-specific NADH ATP supply by mutually exclusive OGDH exons 4a 4b. Here we show that their splicing is enforced distant lariat branch points (dBPs) located near 5′ splice site intervening intron. dBPs restrict intron length prevent transposon insertions, which can introduce or ...
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