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首页> 外文期刊>Journal of Membrane Science & Technology >Micropollutant, Micropollutant Metabolites and Toxin Removals in a Drinking Water Treatment Plant Using Some Novel and Economical Removal Processes
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Micropollutant, Micropollutant Metabolites and Toxin Removals in a Drinking Water Treatment Plant Using Some Novel and Economical Removal Processes

机译：使用一些新颖和经济的去除过程，微核性，微核性代谢物和毒素去除饮用水处理厂

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The aim of this study was to detect the levels of heptachlor (1, 4, 5, 6, 7, 8, 8-Heptachloro-3a, 4, 7, 7a-tetrahydro-4, 7-methano-1H-indene) and acetochlor (2-Chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)-acetamide) Micropollutants (MK), their Metabolites (M) (heptachlor epoxide and fenthion and fenthion sulfoxide and some Toxins (T) (mycrocystin and aplysiatoxin from cyanotoxin) in the raw water of a drinking water treatment plant. Measurement procedures for the MK, M, and Ts have been developed. A sequential treatment process consisting of a Granulated Activated Carbon (GAC)/contact aerobic Membrane Bioreactor (MBR), Electro Fenton (EF) and NanoFiltration (NF) were found to be efficient in the treatment of MK, M and T. The maximum heptachlor and acetachlor removals in GAC by adsorption was 64% and 14%, respectively, while the Dissolved Organic Carbon (DOC) yields were recorded as 68% after 24 h. In the GAC/MBR contact aerobic reactor system, acetachlor and heptachlor yields were recorded as 89% and 27%, respectively. The heptachlor metabolite heptachlor epoxide was produced in this stage (30 ng/l) while the fenthion and fenthion sulfoxide metabolites of acetochlor were recorded as (120 ng/l) and (280 ng/l), respectively. These metabolites were removed with yields of 94.4%, 98%, and 94%, respectively, in the MBR. In NF the total yields of both pesticides and their metabolites varied between 96% and 98%. The toxin concentrations were reduced to (0.01 ng/l) and (0.02 ng/l) in the effluent of NF.
机译：该研究的目的是检测庚烷的水平（1,4,5,6,7,8,8-庚烷-3a，4,7,7,7a-四氢-4,7-甲基-1h-indene）和乙酰体（2-氯-N-（乙氧基甲基）-N-（2-乙基-6-甲基苯基） - 乙酰胺）微污染物（MK），它们的代谢物（M）（庚烷环氧化物和脂肪酮和硫磺砜和一些毒素（T） （Mycrocystin和Aplysiatoxin来自Cyanotoxin）在饮用水处理厂的原水中。已经开发了MK，M和TS的测量程序。由粒状活性炭（GAC）/接触有氧膜生物反应器组成的顺序处理过程（MBR），Electro Fenton（EF）和纳米滤膜（NF）在治疗MK，M和T的治疗中有效。通过吸附的GAC的最大庚烷和乙酰量分别为64％和14％，而24小时后，溶解的有机碳（DOC）产率被记录为68％。在GAC / MBR接触有氧反应器系统中，乙酰化合物和七氯产量e分别记录为89％和27％。在该阶段（30ng / L）中生产庚藻素代谢物七氧化乙烯基氧化氢化合物，而乙酰硫酮和硫氧化硫醚代谢物分别记录为（120ng / L）和（280 ng / L）。将这些代谢物分别在MBR中除去94.4％，98％和94％的产率。在NF中，杀虫剂和代谢物的总产量在96％和98％之间变化。在NF的流出物中将毒素浓度降至（0.01 ng / L）和（0.02ng / L）。

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