基于发光细菌法的工业废水综合毒性检测技术  

Comprehensive Toxicity Detection Technology of Industrial Wastewater Based on Luminescent Bacteria Method

作　　者：苏少林[1] Su Shaolin(Yangling Vocational and Technical College,Xianyang,China)

机构地区：[1]杨凌职业技术学院,陕西咸阳

出　　处：《科学技术创新》2023年第22期61-64,共4页Scientific and Technological Innovation

摘　　要：本文选择10家企业采集工业废水,并使用便携式水质分析仪、纳氏试剂光度计等测定了废水样品的pH值、电导率、化学需氧量等8项理化指标。同时,向预处理后的废水中加入发光细菌液,使用温控毒性检测仪检测废水样品的发光抑制率,并参照《Microtox毒性等级划分标准》进行毒性等级划分。结果表明,10家企业中矿物加工企业B、饮料制造企业D、纺织企业E、化工企业H、石油加工企业J的废水存在毒性,与理化指标检测结果具有一致性。其中矿物加工企业B排放废水的毒性等级为Ⅲ级,评价结果为重毒,需要改进废水净化工艺以降低废水排放对环境的污染。In this paper,10 enterprises were selected to collect industrial wastewater,and the pH value,electrical conductivity,chemical oxygen demand and other 8 physical and chemical indexes of wastewater samples were determined by portable water quality analyzer and Nessler reagent photometer.At the same time,luminescent bacterial liquid was added to the pre-treated wastewater,and the luminescent inhibition rate of wastewater samples was detected by a temperature-controlled toxicity detector,and the toxicity grade was classified according to the Microtox Toxicity Grade Classification Standard.The results showed that the toxicity of wastewater from mineral processing enterprise B,beverage manufacturing enterprise D,textile enterprise E,chemical enterprise H and petroleum processing enterprise J was consistent with the physicochemical index.Among them,the toxicity level of the wastewater discharged from mineral processing enterprise B isⅢ,and the evaluation result is very toxic,so it is necessary to improve the wastewater purification process to reduce the pollution to the environment.

关 键 词：发光细菌法 工业废水 综合毒性检测 温控毒性检测仪 

分 类 号：X832[环境科学与工程—环境工程]