土壤重金属钝化剂的制备及性能
摘要
土壤是人类赖以生存的主要自然资源，也是人类生态环境的重要组成部分。随着土壤重金属污染的日益严重，重金属污染土壤的修复已经成为环境问题的热点。化学钝化修复技术以低的投入成本、操作工艺的简单、使用效果快等优点，在重金属污染土壤修复中得到广泛的重视和关注。粘土矿物，石灰，有机肥，生物炭等钝化剂材料是重要的土壤重金属化学稳定剂。本文通过阳极溶出伏安法来测定土壤重金属的含量，利用土壤重金属钝化剂对污染土壤中的重金属进行快速钝化处理，根据稳定效率和钝化剂的钝化能力cap值对钝化材料的性能进行对比。并且通过综述钝化剂的分类和特点，简单阐述了钝化剂的分类，特点，性能和作用机理。
关键词：重金属；钝化剂；修复机理
Preparation and properties of soil heavy metal passivating agent
ABSTRACT
Soil is the main natural resource for human survival, and is an important part of human ecological environment.With the increasing of heavy metal contamination of soil, the remediation of heavy metals contaminated soil increasingly becomes a hot environmental issue.Chemical immobilization technology has been paid widely attention for its low-cost, easy operation and quick results. Clay minerals, lime, organic fertilizers, biochar and other passivation agents are important chemical stabilizers of heavy metals in soil。This article has tested the soil heavy metal content by anodic stripping voltammetry. This passivation agents are added to rapid immobilize the heavy metals in contaminated soils．The properties of passivating materials were compared according to the stability efficiency and passivating capacity cap value of passivating agent.And by summarizing the classification and characteristics of passivating agents, the classification, characteristics, properties and action mechanism of passivating agents were briefly described。
Keywords: heavy metal; passivating agent ;remediation mechanisms
以上是毕业论文文献综述，课题毕业论文、任务书、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
