摘要
辉山农副产品加工园区废水的污染物浓度高、生物毒性强,对沈阳市蒲河全流域水环境造成严重污染。为掌握园区典型行业废水污染现状,开展实地调研以理清园区典型行业废水的源汇机制,对主要污染因子CODCr、BOD5、SS、NH3-N、TN、TP及生物毒性抑制率进行监测。结果表明,现有污水处理设施对饮料制造和玉米深加工行业废水处理效果较好,出水指标可达到排放标准;液体乳及乳制品加工行业排水存在TN、TP超标现象;屠宰及肉类加工行业排水生物毒性仍较强。针对以上问题,考虑采用生物-生态处理工艺提高出水水质、拓宽中水回用途径,既节约了生产过程中的新鲜水利用量,又减少了污染物的排放,可降低园区外排污染所产生的不利影响。
Huishan agricultural and sideline products processing park was located in Puhe source.Wastewater from the park had important effect on Puhe river water quality.To master the typical industry wastewater pollution status,and clarify wastewater source,through field investigation,the main pollutants of the park wastewater were monitored.The results showed that it was good that the beverage manufacture and corn processing industry wastewater treatment effect.TN and TP of the liquid milk and milk products processing industry wastewater were over the standard.Biological toxicity of the meat processing industry wastewater was high.For the above situation,it is suggested that the biological-ecological treatment technology as a solution.
作者
李蕊
LI Rui(Shenyang Saisi Environmental Engineering Design and Research Center Limited Company,Shenyang 110016,China)
出处
《环境保护科学》
CAS
2019年第4期55-60,共6页
Environmental Protection Science
关键词
农副产品加工园区
废水
污染特征
中水回用
Agricultural and Sideline Products processing park
Wastewater
Pollution Characteristic
Reclaimed Water Reuse
