[1]姚静华,连霞,齐珺,等.制药废水的重金属排放特征及去除效果分析[J].中国给水排水,2020,36(13):83-88.
YAO Jing hua,LIAN Xia,QI Jun,et al. Discharge Characteristics and Removal Efficiency of Heavy Metals in Pharmaceutical Wastewater [J].China Water & Wastewater,2020,36(13):83-88.
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YAO Jing hua,LIAN Xia,QI Jun,et al. Discharge Characteristics and Removal Efficiency of Heavy Metals in Pharmaceutical Wastewater [J].China Water & Wastewater,2020,36(13):83-88.
制药废水的重金属排放特征及去除效果分析
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第36卷
期数:
2020年第13期
页码:
83-88
栏目:
出版日期:
2020-07-01
- Title:
-
Discharge Characteristics and Removal Efficiency of Heavy Metals in Pharmaceutical Wastewater
- Keywords:
- pharmaceutical wastewater; heavy metal; chemical API; biopharmaceutical; removal efficiency
- 摘要:
-
为研究制药废水重金属排放特点，在5个省市选择5家化学原料药生产企业和5家生物制药企业，监测分析车间排水和出水总汞、总砷、六价铬、总铬、总镉、总铅等6种重金属浓度。结果表明：10家制药企业废水重金属排放浓度均低于有关排放标准。化学原料药制药废水检出率最高的指标为总砷，其次为总汞、总铬，其中车间排水总砷检出率高达100%。生物制药废水总汞检出率最高，其次为总砷、总铬，其中车间排水总汞检出率高达100%。大多数企业采用预处理、生化处理及深度处理组合式污水处理工艺，多数对总汞、总砷和总铬具有明显去除效果，原因主要在于混凝相关工艺及微生物的生物吸附和絮凝作用使废水中的重金属从溶解的离子状态转变成难溶性化合物或稳定的螯合物而转移到污泥中。
- Abstract:
-
Characteristics of heavy metal discharge in pharmaceutical wastewater from five chemical active pharmaceutical ingredient (API) enterprises and five biopharmaceutical enterprises located in five provinces and cities were studied. The concentrations of six heavy metals including total mercury, total arsenic, hexavalent chromium, total chromium, total cadmium and total lead in the workshop effluent and the enterprises effluent were analyzed. It was found that the concentrations of heavy metals in effluent of the ten pharmaceutical enterprises were lower than the national discharge standards. Heavy metal with the highest detection rate of API wastewater was total arsenic, followed by total mercury and total chromium. The detection rate of total arsenic in workshop effluent was as high as 100%. Heavy metal with the highest detection rate of biopharmaceutical wastewater was total mercury, followed by total arsenic and total chromium, and the detection rate of total mercury in workshop effluent was as high as 100%. The combined wastewater treatment process of pretreatment, biochemical treatment and advanced treatment were adopted by most enterprises, and most of them had obvious removal effects on total mercury, total arsenic and total chromium. Coagulation together with biological adsorption and flocculation were the main reasons contributing to the heavy metals removal, in which dissolved heavy metal ions were converted into insoluble compounds or stable chelates in the sludge.
更新日期/Last Update:
2020-07-01