Gholami-Borujeni Fathollah, Nejatzadeh-Barandozi Fatemeh, Aghdasi Hamed
Department of Environmental Health Engineering, Health Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran.
Department of Horticulture, Faculty of Agriculture, Khoy Branch, Islamic Azad University, Khoy, Iran.
Data Brief. 2018 Jun 28;19:1837-1843. doi: 10.1016/j.dib.2018.06.076. eCollection 2018 Aug.
Toxicity of Municipal Wastewater Treatment Plant Effluent (MWWTPE) was evaluated using bioassay with (). Acute toxicity tests were performed on effluent samples of Urmia municipal wastewater treatment plant (Biolac system) according to the USEPA methods and 24, 48, 72, and 96 hr lethal concentration 50% (LC) were calculated by application of Probit analysis. Also interrelationship between main effluent physicochemical parameters of wastewater (BOD, COD, and TSS) and 24hr-LC, were studied. Results showed that the effluent was safe to be discharged to the surface water in regard to physicochemical parameters and acute toxicity unit (TUa), according to the standards of Iranian Department of Environment (DOE). Relationship between effluent COD and 24hr-LC show that, increase in effluent COD resulted in increase in wastewater toxicity and there was not relationship between BOD, TSS and toxicity of effluent.
采用生物测定法对城市污水处理厂出水（MWWTPE）的毒性进行了评估。根据美国环境保护局（USEPA）的方法，对乌尔米耶市污水处理厂（生物转盘系统）的出水样本进行了急性毒性试验，并通过概率分析计算出24、48、72和96小时的半数致死浓度（LC50）。此外，还研究了废水主要出水理化参数（生化需氧量、化学需氧量和总悬浮固体）与24小时LC50之间的相互关系。结果表明，根据伊朗环境部（DOE）的标准，就理化参数和急性毒性单位（TUa）而言，该出水排放到地表水是安全的。出水化学需氧量与24小时LC50之间的关系表明，出水化学需氧量的增加导致废水毒性增加，而出水的生化需氧量、总悬浮固体与毒性之间没有关系。
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