北方污水厂痕量毒害物的检测及去除效率研究

The Monitoring and Removal Efficiency of Toxic and Harmful Organic Matter in Northern Wastewater Treatment Plant

针对现在水处理领域被广泛关注的环境痕量毒害物的热点问题,综合利用液液、固相萃取的富集预处理技术来初步调查分析痕量毒害物在哈尔滨2个污水处理厂二级处理工艺中的迁移转化降解率.研究表明,大部分有机物在经过文昌、太平污水厂的二级处理以后都能被很好地去除,太平污水厂对水中痕量毒害物的去除率在79%～94%;文昌污水厂的有机物去除率在88%～90%.太平、文昌污水二级处理厂利用液液萃取方法共检测出微量有机物分别为73和70种,利用固相萃取方法分别检出87和101种.总检出有机物数量为102种,其中属于EPA优先控制污染物质有12种;属于我国水体中优先控制污染物黑名单有6种,其中出水中有机物大部分属于邻苯二甲酸酯类环境内分泌干扰物.

In recent years,large amount of plastics have caused a wide distribution in the world.The thesis focuses on this challenge and tries to investigate the transportation,transference and degradation rules of toxic and harmful organic matter in two wastewater treatment plants（WWTP） at Harbin by using liquid-liquid extraction（LLE） and solid phase extraction（SPE）.Choosing environment hormone—phthalate acid esters（PAEs） as research objects,the presence,transportation and degradation of PAEs are investigated in secondary and advanced treatment process.This research indicate that most organic pollutants can be removed by secondary treatment plant,the removal ratio of trace organic pollutant is 79%-94% for Taiping WWTP,88%-90% of removal ratio for Wenchang WWTP.The organic species numbers detected in the two WWTP are 73 and 70 by means of LLE,87 and 101 by means of SPE,respectively.The total numbers of organic pollutants detected in this study are 102,among which 12 species are belong to Stress control pollutants in water environment by USEPA and 6 species belong to China priority controlled pollutant in black lists.Most pollutants in effluent are PAEs.