河湖疏浚底泥无害化处理和资源化利用研究进展

我国河湖众多,底泥污染状况严重,环保疏浚是治理污染河湖的重要措施。随着我国生态文明建设目标的提出和相关法律法规的不断完善,将河湖疏浚底泥进行无害化处理和资源化综合利用是今后必然的选择。在对我国河湖底泥污染进行分类的基础上,系统综述了底泥脱水减量化、无害化处理、资源化利用和余水处理中各项技术的适用性和优缺点,并总结了不同类型污染底泥的处理处置途径,最后提出了河湖疏浚底泥治理的研究展望及建议。

Advance in Research on Harmless Treatment and Resource Utilization of Dredged Sediment of Rivers and Lakes

Dredging is an important method for the treatment of polluted sediment in rivers and lakes. Harmless treatment and resource utilization of dredged sediment in rivers and lakes is an inevitable trend with the raise of the goal of eco-civilization the improvement of laws and regulations in China. The pollution types of sediment in rivers and lakes are classified. On this basis, dewatering techniques, harmless treatment techniques, resource utilization methods and residual water treatment techniques for dredged sediments are discussed. The applicability, advantages and disadvantages of each technique or method are analyzed and compared. The treatment approaches for different sediment types are also summarized. At last, research prospects and advices are given in order to improve the treatment efficiencies for dredged sediment.