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河湖淤泥制备绿化种植土的研究现状及展望

摘 要:针对每年产生的大量河湖淤泥的处置难题,本文介绍了河湖淤泥的特点和危害,包括恶化人居环境、二次污染周边土壤和长期压占土地,对河湖淤泥直接制备种植土和淤泥用作土壤改良剂两种工艺进行了系统总结,最后提出对全国各地淤泥的理化性质开展系统性研究和分类统计的展望。

关键词:淤泥;污染;种植土;资源化

中图分类号:S141.4;X703     文献标志码:A    文章编号:1003-5168(2022)11-0121-04

DOI:10.19968/j.cnki.hnkj.1003-5168.2022.11.027

Research Status and Prospect of Preparing Greening Planting Soil from River and Lake Sludge

LI Shenzhen    CHNE Yu    QIN Huajin    MA Yuanyuan    WANG  Shiquan

(School of Resources and Civil Engineering, Suzhou University, Suzhou 234000, China)

Abstract: In view of the disposal problems of a large number of river and lake sludge produced every year, this paper introduces the characteristics and hazards of river and lake sludge, including deterioration of living environment, secondary pollution of surrounding soil and long-term occupation of land, systematically summarizes the two technologies of direct preparation of planting soil and sludge as soil conditioner, and finally puts forward the prospect of systematic research and classified statistics on the physical and chemical properties of sludge all over the country.

Key words: the sludge; pollution; planting soil; resource recovery

0 引言

我國每年在河湖水环境整治、航道疏浚、港口建设工程中,会产生数亿方废弃淤泥,由于河湖淤泥具有含水率高、强度低、渗透性差、成分复杂、固结过程缓慢等特点,无法直接用于工程或植物种植,清淤出来后直接堆放在空地上,长期占用土地资源[1-2]。(剩余5552字)

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