Characterization of organic matter and disinfection by-products in membrane backwash water from drinking water treatment

Zhang, Lingling; Gu, Ping; Zhong, Zijie; Yang, Dong; He, Wei; Han, Hyunsu

doi:10.1016/j.jhazmat.2009.02.083

Cited by 11 publications

(2 citation statements)

References 30 publications

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“…However, where the source water is of lower quality, the low level of organic matter removal achieved with UF may not ensure that the treated water will comply with standards (disinfection by-products (DBPs) formation). Minimization of natural organic matter (NOM) has emerged as a critical issue in treating the surface water for drinking purposes because NOM can result in the formation of DBPs such as trihalomethanes, which are harmful to people's health [27]. In order to improve the removal of NOM in a MF or UF process, MF can be combined with other unit processes, such as coagulation and adsorption, and improved results have been demonstrated [28][29][30][31][32][33][34][35][36].…”

Section: Performance Of Membrane Plants In Producing Drinking Watermentioning

confidence: 99%

Membrane technology for municipal drinking water plants in China: progress and prospect

Zheng

Liang

et al. 2012

Desalination and Water Treatment

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Frechen (2012) Membrane technology for municipal drinking water plants in China: progress and prospect, Desalination and Water Treatment, 49:1-3, 281-295, A B S T R A C TThe quality of drinking water from the conventional treatment process is not satisfactory, due to serious pollution of China's surface water. The improvement of the existing water treatment plants is the key to ensure the quality of drinking water in China. Membrane processes are gaining importance in water applications as a result of the advances in membrane technology and the increasing requirements on water quality. This study presents the results of the thorough survey of membrane technology for municipal drinking water plants in China. The survey consists of surveys of literature, membrane manufacturers, and water plants employing membrane technology. We examined the historic perspective of membrane technology and analyzed the membrane market in China. Performance of membrane plants in producing drinking water is investigated based on the survey as well. The results demonstrate that low pressure membrane technologies are employed extensively in China. Water plants with large capacity account for primary market share and drive the annual revenue growth. China will become a fast growing membrane market in the long run and Taihu basin region will continue to be the greatest market for new membrane equipment due to its enormous population and rapid economic growth.

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Section: Performance Of Membrane Plants In Producing Drinking Watermentioning

confidence: 99%

Membrane technology for municipal drinking water plants in China: progress and prospect

Zheng

Liang

et al. 2012

Desalination and Water Treatment

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“…Trihalomethanes (THMs) DBPs Zhang et al, 2009a;2009b;Panyapinyopol et al, 2005) were regulated by EPA (1979).…”

Section: Introductionmentioning

confidence: 99%

Disinfection and DBPs removal in drinking water treatment: A perspective for a green technology

Ghernaout

2018

Int. j. adv. appl. sci.

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The generation, monitoring, and health impacts of disinfection by-products (DBPs) in potable water are problems of worldwide worry. Several nations, besides the World Health Organization, possess regulations and/or guidelines on bearable levels of DBPs in water. Since drinking water is frequently remediated using a chemical killing agent, DBPs are pollutants to which several humans are unprotected. On account of the health impacts linked to subjection to chlorinated water and/or some DBPs, the water manufacturing has performed great endeavors to equilibrate killing pathogens and DBP monitoring. Large survey has been realized on rising DBPs of health and regulatory worry. In spite of the fact that the attention on DBPs was previously on chlorine-and bromine-containing carbonaceous DBPs, appearing DBPs comprise iodine-containing species, also halogenated and non-halogenated nitrogenous DBPs. In addition, latest toxicity experimentation has proposed that certain of the more recent PBPs are of more elevated toxicity than some of the regulated chemical products. Therefore, survey has been realized to better comprehend how to costeffectively monitor a large interval of regulated and appearing DBPs. This comprises the usage of advanced remediation and killing pathogens methodologies. This paper shows certain of the newest research works at comprehending these significant DBP-related problems. Disinfection is killing microorganisms present in water; but, it is as well killing human beings drinking water by poisonous DBPs. Using chemicals for water treatment is finally a lost cause.

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Characterization of natural organic matter and disinfection byproducts formation potential in pilot-scale coagulation-ultrafiltration membrane combined process in winter

Zhang

Wang

et al. 2010

Trans. Tianjin Univ.

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Abstract：A pilot-scale ultrafiltration membrane plant was set up for treating Luanhe River water with flocculating and precipitation process of waterworks. The aim is to investigate the variation and characteristics of natural organic matter and disinfection byproducts formation potential in the whole process in winter. The results show that dissolved organic matter (DOM), UV 254 , trihalomethanes formation potential (THMsFP) and haloacetic acids formation potential (HAAsFP) of Luanhe River water were mainly distributed in the range of molecular weight (MW) <1 kDa, so were the membrane feed water and treated water by membrane. Specific UV absorbance, specific THMsFP and specific HAAsFP have the maximal value in the MW fraction of 1-3 kDa, except that specific UV absorbance of membrane feed water is in the range of 3-10 kDa; DOM of membrane backwash water is mainly distributed in the range of MW>30 kDa and MW<1 kDa. It is the DOM in water backwashing in up way that made significant contribution to the higher dissolved organic carbon content in membrane backwash water. However, UV 254 , THMsFP and HAAsFP were mainly distributed in the range of MW<1 kDa. The highest concentrations of specific THMsFP and specific HAAsFP appeared in the MW fraction of 3-10 kDa. CHCl 3 was the major THMs species during MBW chlorination and occupied more than 60% of the total THMsFP. Dichloroacetic acid and trichloroacetic acid were the main components in HAAsFP. The concentration of THMsFP and HAAsFP in MBW was influenced by operation period.The polluted water sources and enhancement of water quality requirements lead to the fact that the traditional treatment process cannot meet the stringent drinking water standards. The ultrafiltration (UF) membrane is regarded as a substitute of traditional drinking water treatment process for its efficient retention of particles and viruses in water [1] . The research on the distribution and characterization of natural organic matter (NOM) and disinfection byproducts formation potential (DBPFP) arouses special attention [2,3] . Variation in the amount and nature of NOM, especially with respect to changes in the aromatic carbon content, has become significant factors for designing water treatment strategies [4] . NOM in water not only produces chromaticity, turbidity and eutrophication, but also produces disinfection byproducts(DBPs), and many of them have been proved to be carcinogenic [5] . At present, most researches regarding the occurrence of chlorinated DBPs in drinking water are on trihalomethanes (THMs) formation and evolution [6] , and a few are on haloacetic acids (HAAs). In order to better remove NOM in the UF process, membrane filtration can be combined with other unit processes, such as coagulation, precipitation and adsorption [7] . Research on the characteristics of NOM in the combined process and the role in forming DBPFP may shed light on more effective solutions to controlling NOM and decreasing DBPs in the treatment process during the period of low temperature and low turbid...

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Characterization of organic matter and disinfection by-products in membrane backwash water from drinking water treatment

Cited by 11 publications

References 30 publications

Membrane technology for municipal drinking water plants in China: progress and prospect

Membrane technology for municipal drinking water plants in China: progress and prospect

Disinfection and DBPs removal in drinking water treatment: A perspective for a green technology

Characterization of natural organic matter and disinfection byproducts formation potential in pilot-scale coagulation-ultrafiltration membrane combined process in winter

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