水资源与水工程学报
水資源與水工程學報
수자원여수공정학보
JOURNAL OF WATER RESOURCES AND WATER ENGINEERING
2014年
4期
60-64
,共5页
周海东%徐菲%刘建波%王蒙%周姣岩%王学连
週海東%徐菲%劉建波%王矇%週姣巖%王學連
주해동%서비%류건파%왕몽%주교암%왕학련
内分泌干扰物%城市污水%生物降解%污泥吸附
內分泌榦擾物%城市汙水%生物降解%汙泥吸附
내분비간우물%성시오수%생물강해%오니흡부
endocrine-disrupting compound%sewage%biodegradation%sludge adsorption
以4种(壬基酚(4-n-NP),双酚A (BPA),雌二醇(E2)、乙炔基雌二醇(EE2))内分泌干扰物(EDCs)为目标物,针对其在城市污水处理厂工艺流程中的分布与去除进行了研究,并进一步实验研究了其去除机理。所有EDCs在城市污水厂进出水中均被检出,进水中平均浓度分别为E2:64.8 ng/L,EE2:171.5 ng/L,4-n-NP:115.4 ng/L,BPA:920.7 ng/L;出水中平均浓度分别为E2:22.8 ng/L,EE2:49.9 ng/L,4-n-NP:50.9 ng/L,BPA:84.3 ng/L。污水中EDCs目标物的去除主要来自于生物处理阶段,其去除机理主要是生物降解,生物降解速率与EDCs种类及污泥类型有关。污泥吸附对EDCs的去除可产生一定的影响。
以4種(壬基酚(4-n-NP),雙酚A (BPA),雌二醇(E2)、乙炔基雌二醇(EE2))內分泌榦擾物(EDCs)為目標物,針對其在城市汙水處理廠工藝流程中的分佈與去除進行瞭研究,併進一步實驗研究瞭其去除機理。所有EDCs在城市汙水廠進齣水中均被檢齣,進水中平均濃度分彆為E2:64.8 ng/L,EE2:171.5 ng/L,4-n-NP:115.4 ng/L,BPA:920.7 ng/L;齣水中平均濃度分彆為E2:22.8 ng/L,EE2:49.9 ng/L,4-n-NP:50.9 ng/L,BPA:84.3 ng/L。汙水中EDCs目標物的去除主要來自于生物處理階段,其去除機理主要是生物降解,生物降解速率與EDCs種類及汙泥類型有關。汙泥吸附對EDCs的去除可產生一定的影響。
이4충(임기분(4-n-NP),쌍분A (BPA),자이순(E2)、을결기자이순(EE2))내분비간우물(EDCs)위목표물,침대기재성시오수처리엄공예류정중적분포여거제진행료연구,병진일보실험연구료기거제궤리。소유EDCs재성시오수엄진출수중균피검출,진수중평균농도분별위E2:64.8 ng/L,EE2:171.5 ng/L,4-n-NP:115.4 ng/L,BPA:920.7 ng/L;출수중평균농도분별위E2:22.8 ng/L,EE2:49.9 ng/L,4-n-NP:50.9 ng/L,BPA:84.3 ng/L。오수중EDCs목표물적거제주요래자우생물처리계단,기거제궤리주요시생물강해,생물강해속솔여EDCs충류급오니류형유관。오니흡부대EDCs적거제가산생일정적영향。
Taking four endocrine-disrupting compounds ( EDCs) as target substance ,the paper researched the distribution and removal rate of EDCs in process of a sewage treatment plant ( STP) , and further investigated the mechanisms of EDCs removal .All the target compounds were detected in the influent and effluent sewa-ges.The mean concentrations of E2, EE2, 4-n-NP and BPA in water inlet were 64.8, 171.5, 115.4, 920.7 ng/L and that in water outlet were 22.8, 49.9, 50.9, and 84.3 ng/L.The removal of target compounds from sewage is mainly attributed to the biological treatment stage in STP .The mechanism of removal is largely bio-degradation , and the rate of biodegradation is related to kinds of EDCs and types of sludge .The sludge adsorp-tion might have certain influence on the removal of EDCs .