河湖淤泥制備綠化種植土的研究現(xiàn)狀及展望

摘 要：針對每年產(chǎn)生的大量河湖淤泥的處置難題，本文介紹了河湖淤泥的特點和危害，包括惡化人居環(huán)境、二次污染周邊土壤和長期壓占土地，對河湖淤泥直接制備種植土和淤泥用作土壤改良劑兩種工藝進(jìn)行了系統(tǒng)總結(jié)，最后提出對全國各地淤泥的理化性質(zhì)開展系統(tǒng)性研究和分類統(tǒng)計的展望。

關(guān)鍵詞：淤泥;污染;種植土;資源化

中圖分類號：S141.4;X703     文獻(xiàn)標(biāo)志碼：A    文章編號：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

我國每年在河湖水環(huán)境整治、航道疏浚、港口建設(shè)工程中，會產(chǎn)生數(shù)億方廢棄淤泥，由于河湖淤泥具有含水率高、強(qiáng)度低、滲透性差、成分復(fù)雜、固結(jié)過程緩慢等特點，無法直接用于工程或植物種植，清淤出來后直接堆放在空地上，長期占用土地資源[1-2]。（剩余5552字）