硝酸钙在底泥修复中的作用机理及

受污染底泥的修复已经成为水环境修复中的重要组成部分，在底泥中注入硝酸钙则是近十多年来发展起来的一种污染底泥原位处理技术。全面分析了硝酸钙在底泥修复中去除有机物、抑制磷的释放以及消除水体黑臭现象的机理，并介绍了这一技术在国内外的研究和应用状况。研究成果表明：在底泥中注入硝酸钙的技术已从实验室和中试研究阶段发展到了实际的工程动作阶段，并且在有机物PAHS的降解和硫化物的去除方面已经得到了很好的效果。

Mechanisms and Application of Calcium Nitrate in the Remediation of Polluted Sediment

Remediation of polluted sediment has become an important component of water environment remediation. Injecting calcium nitrate into sediments is a new technology of in-situ treatment developed in the late 10 years. This paper analyzes the mechanisms of calcium nitrate in organism removal, phosphorous release restraining, and elimination of bad odor and black of water bodies of sediments remediation. The present status of research and applications are also introduced. The results indicate that the technique of injecting calcium nitrate into sediment has developed from lab experiment and medium test study to application in real work, and obtained good effect in organism PAHs degradation and sulfide removal.