[1]杨早,李瑜,王晶晶,等.上海农村污水污泥重金属污染水平及营养指标评价[J].中国给水排水,2023,39(21):86-93.
　YANGZao,LIYu,WANGJing-jing,et al.Heavy Metal Pollution Level of Rural Sewage Sludge in Shanghai and Its Nutrition Indicator Evaluation[J].China Water & Wastewater,2023,39(21):86-93.
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上海农村污水污泥重金属污染水平及营养指标评价

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第21期 页码: 86-93 栏目: 出版日期: 2023-11-01
Title:
Heavy Metal Pollution Level of Rural Sewage Sludge in Shanghai and Its Nutrition Indicator Evaluation
作者:
杨早1， 李瑜2， 王晶晶1， 胡昕晔2， 时珍宝3， 李昕1， 李怀正1， 董滨1， 徐祖信1
（1.同济大学 环境科学与工程学院，上海 200092；2.上海市水利管理事务中心，上海 200002；3.上海碧波水务设计研发中心，上海 200233）
Author(s):
YANG　Zao1， LI　Yu2， WANG　Jing-jing1， HU　Xin-ye2， SHI　Zhen-bao3， LI　Xin1， LI　Huai-zheng1， DONG　Bin1， XU　Zu-xin1
（1. College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China； 2. Shanghai Water Conservancy Management Center， Shanghai 200002， China； 3. Shanghai Bibo Water Design and Research Center， Shanghai 200233， China）
关键词:
农村污水污泥;  重金属污染;  营养指标;  生态风险评价
Keywords:
rural sewage sludge;  heavy metal pollution;  nutrition indicator;  ecological risk assessment
摘要:
为了解上海市农村污水污泥中重金属的污染特征和其资源化利用的潜力，选取上海市稳定运行的分散式农村污水处理设施为研究对象，最终采集样本21个，利用ArcGIS阐明了重金属和营养元素的区域分布特征。结果表明：上海市农村污水污泥重金属的污染水平和潜在生态风险呈由北向南递减的趋势，但整体来说重金属含量均满足《农用污泥污染物控制标准》（GB 4284—2018）B级污泥产物污染物限值要求，可以安全地进行土地资源化利用；除闵行区外，上海市其余区的农村污水污泥都已达到或极其接近《城镇污水处理厂污泥处置 园林绿化用泥质》（GB/T 23486—2009）对N、P、K含量的要求（30 g/kg），稳定化处理后可就地进行还林利用；Cu、Zn、Pb的富集可能源于畜禽粪便污染和交通污染，推测Cd和As可能来源于施肥和工业活动。这可为上海市农村污水处理设施运行现状的研究提供参考，为上海市农村污泥处理方式与相关政策的制定提供依据。
Abstract:
This paper collected 21 available samples from decentralized rural sewage treatment facilities operated stably in Shanghai, clarified the regional distribution characteristics of heavy metals and nutrient elements by ArcGIS, so as to understand the pollution characteristics of heavy metals in rural sewage sludge in Shanghai and its potential for resource utilization. The heavy metal pollution level and potential ecological risk of rural sewage sludge in Shanghai showed a decreasing trend from north to south. However, the heavy metal content met the class B sludge product pollutant limit specified in Control Standards of Pollutants in Sludge for Agricultural Use (GB 4284-2018) on the whole, indicating that the sludge could be safely used for resource utilization in land. Except Minhang District, the nitrogen, phosphorus and potassium contents of rural sewage sludge in other areas of Shanghai reached or was very close to the limits (30 g/kg) specified in Disposal of Sludge from Municipal Wastewater Treatment Plant—Quality of Sludge Used in Gardens or Parks (GB/T 23486-2009), and the sludge could be returned to local forest after stable treatment. The enrichment of Cu, Zn and Pb might come from livestock manure and traffic pollution, and it was speculated that Cd and As might originate from fertilization and industrial activities. This paper provided a reference for the study of the operation status of rural sewage treatment facilities in Shanghai, and built an important basis for the treatment of rural sludge and the formulation of relevant policies in Shanghai.
更新日期/Last Update: 2023-11-01