摘要
沉积物是流域物质循环的储蓄库,而硫是控制沉积物氧化还原体系及其污染物迁移转化的重要因子,故系统梳理和总结沉积物中硫循环对于沉积物内源污染过程的认知和控制具有重要意义.本文首先阐述沉积物中硫赋存形态及其分析方法,综述了沉积物中硫循环关键过程,着重介绍了沉积物中微生物驱动的硫氧化过程和硫还原过程,以及硫循环的关键地球化学过程;其次,深入论述沉积物中硫-重金属-磷耦合循环过程,解析了硫循环对沉积物中重金属和磷迁移转化的影响,以及其可能引起的水生态环境效应;最后,系统归纳沉积物中硫循环在水体污染治理方面的一些应用,并从方法学构建、机理认识、技术研发等方面对未来沉积物中硫循环的研究方向进行了展望.
Sediment is the deposit bank of material cycle in the basin,and sulfur is an important factor controlling the redox system of sediment and its pollutant migration and transformation,so it is of great significance to systematically summarize sulfur cycle in the sediment for the understanding and control of sediment pollution.In this paper,the speciation and analysis methods of sulfur in the sediment were expounded,and the key processes of sulfur cycle were reviewed,with emphasis on sulfur oxidation and reduction processes driven by microbe,as well as the key geochemical processes of sulfur cycle in the sediment.Secondly,the coupling cycle of sulfur-heavy metal-phosphorus in the sediment was expatiated,and the effects of sulfur cycle on the migration and transformation of heavy metals and phosphorus were discussed.Finally,some applications of sulfur cycle in water pollution control were summarized,and the future research direction of sulfur cycle in the sediment was prospected from the aspects of methodology construction,mechanism understanding and technology development.
作者
唐文忠
许清峰
张洪
张美一
赵建伟
TANG Wenzhong;XU Qingfeng;ZHANG Hong;ZHANG Meiyi;ZHAO Jianwei(State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-environmental Sciences,Chinese Academy of Sciences,Beijing 100085;University of Chinese Academy of Sciences,Beijing 100049;Laboratory of Eco-Environmental Engineering Research,State Environmental Protection Key Laboratory of Soil Health and Green Remediation,Huazhong Agricultural University,Wuhan 430070)
出处
《环境科学学报》
CAS
CSCD
北大核心
2024年第1期1-14,共14页
Acta Scientiae Circumstantiae
基金
国家自然科学基金(No.42177383,41877368)。
关键词
沉积物
硫循环
赋存形态
迁移转化
水污染
sediment
sulfur cycle
occurrence and speciation
migration and transformation
water pollution
