文献类型：期刊文献

中文题名：北京地区不同城镇污水处理厂堆肥污泥的营养含量和重金属污染

英文题名：Nutrient Contents and Heavy Metal Pollutions in Composted Sewage Sludge from Different Municipal Wastewater Treatment Plants in Beijing Region

作者：白莉萍[1] 齐洪涛[1] 伏亚萍[1] 李萍[1]

第一作者：白莉萍

机构：[1]中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室

年份：2014

卷号：0

期号：12

起止页码：4648-4654

中文期刊名：环境科学

外文期刊名：Environmental Science

收录：MEDLINE(收录号：25826937);CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；PubMed;

基金：中央级公益性科研院所基本科研业务费专项(CAFRIFEEP201106)

语种：中文

中文关键词：堆肥污泥;营养成分;微量元素;重金属污染;北京地区

外文关键词：composted sewage sludge;;nutrient;;trace elements;;heavy metal pollutions;;Beijing region

分类号：X703

摘要：研究了北京地区不同城镇污水处理厂堆肥污泥(以A、B型表示)的营养含量变化和重金属污染状况.结果表明,A、B型堆肥污泥的p H、营养成分、微量元素和重金属含量因污泥来源和年份而异.其中,A型堆肥污泥不同年份的有机质平均值为203 338.0 mg·kg-1,达到了《城镇污水处理厂污泥处置-农用泥质》(CJ/T 309-2009)和《城镇污水处理厂污泥处置-土地改良用泥质》(GB/T 24600-2009)中的标准要求,但未达到《城镇污水处理厂污泥处置-园林绿化用泥质》(GB/T 23486-2009)中的标准;而B型堆肥污泥不同年份的有机质平均值为298 531.5 mg·kg-1,A、B型堆肥污泥不同年份的p H平均值分别为7.1和7.2以及氮磷钾总养分(N+P2O5+K2O)平均值分别为41 111.7 mg·kg-1和65 901.5 mg·kg-1,均达到以上各城镇污水处理厂污泥处置类型的标准限值要求.除了Hg、Ni含量存在超标现象外,A、B型堆肥污泥中的重金属含量均低于我国最为严格的《城镇污水处理厂污泥处置-农用泥质》中A级污泥的标准限值.总体而言,北京地区不同城镇污水处理厂堆肥污泥在今后的农用、土地改良以及园林绿化处置中,存在潜在的Hg、Ni环境污染状况,须优先关注.
Changes of nutrient contents and heavy metal pollutions in composted sewage sludge from different municipal wastewater treatment plants (as represented by CSS-A and CSS-B, respectively) in Beijing region were investigated. The results showed that the pH values, nutrient contents, trace elements and heavy metals in CSS-A and CSS-B depended on the sludge resources and particular years. The average of organic matter content in different years (203 338. 0 mg·kg - 1 ) from CSS-A met both the requirement of sludge quality standard for agricultural use (CJ/ T 309-2009) and land improvement (GB/ T 24600-2009) in China except the permitted limit of sludge quality standards for garden or park use (GB/ T 23486-2009) in China. Moreover, the average of organic matter in different years (298 531. 5 mg·kg - 1 ) from CSS-B and the averages of pH values (7. 1 and 7. 2, respectively) and NPK concentrations (41 111. 7 mg·kg - 1 and 65 901. 5 mg·kg - 1 , respectively) in different years from CSS-A and CSS-B all met the requirements of sludge quality standards for the above-mentioned disposal types of sewage sludge from municipal wastewater treatment plants. The contents of heavy metals in CSS-A and CSS-B except Hg and Ni were below the permitted limits of the A-class sludge quality standard for agricultural use (CJ/ T 309-2009), being the most stringent standards in China. It was suggested that composted sewage sludge from different municipal wastewater treatment plants in Beijing region use as a fertilizer in agriculture, land improvement, and garden or park, but the top concern about potential environmental pollution of Hg and Ni should be considered.