锂电池相关企业下游河流中锂赋存特征分析  

Lithium occurrence characteristics in rivers downstream of lithium battery-related companies

作　　者：王富加 陈靖 肖欣欣 王晓伟[1] WANG Fujia;CHEN Jing;XIAO Xinxin;WANG Xiaowei(Chinese Research Academy of Environmental Sciences,Beijing 100012,China;College of Environmental Science and Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]中国环境科学研究院,北京100012 [2]北京工业大学环境科学与工程学院,北京100124

出　　处：《化工环保》2025年第2期275-280,共6页Environmental Protection of Chemical Industry

基　　金：国家重点研发计划项目(2020YFC1807903)。

摘　　要：以河北省某锂业园区下游河流至入海口的环境介质(河水和沉积物(底泥))为研究对象,分析了河流中锂的赋存特征,评估了其变化趋势以及对环境的潜在危害。研究采用的锂测定方法具有较高的准确度和精密度,锂回收率在75.5%~98.0%,相对标准偏差(n=3)小于5%。研究区域内河流水质指标正常,锂可能以锂离子、碳酸锂沉淀以及有机络合物的形式存在。河水和底泥中的锂含量沿河流流向整体呈上升趋势,河流径流仅能稀释锂含量,但无法消除锂污染,这可能造成环境风险。河水与底泥中锂含量呈显著正相关关系,但由于底泥对锂污染响应缓慢,因此在指示短期排放和长期排放方面具有较大潜力。The environmental media,river water and sediments(bottom mud),from the downstream river to the estuary of a lithium industry park in Hebei Province were taken as the research object.The occurrence characteristics of lithium in the river were analyzed,and its changing trend and potential harm to the environment were evaluated.Under the lithium determination method with high accuracy and precision in the study,the lithium recovery rate ranges from 75.5%to 98.0%,with a relative standard deviation(n=3)less than 5%.The water quality indicators of rivers in the study area are normal,and lithium may exist in the form of lithium ions,lithium carbonate precipitation,and organic complexes.The lithium content in river water and bottom mud generally increases along the river flow.River runoff can only dilute the lithium content but cannot eliminate lithium pollution,which may cause environmental risks.There is a significant positive correlation between the lithium content in river water and bottom mud.However,as the bottom mud responds slowly to lithium pollution,it has great potential to indicate short-term and long-term emissions.

关 键 词：锂 锂电池相关企业 锂污染 赋存特征 相关性分析 

分 类 号：X828[环境科学与工程—环境工程]