[1]李福畴,孙先锋,张志刚,等.东莞松山湖片区淤泥固化及资源化技术应用[J].中国给水排水,2025,41(18):112-117.
　LIFu-chou,SUNXian-feng,ZHANGZhi-gang,et al.Application of Silt Solidification and Resource Utilization Technology in Songshan Lake Area of Dongguan[J].China Water & Wastewater,2025,41(18):112-117.
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东莞松山湖片区淤泥固化及资源化技术应用

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第18期 页码: 112-117 栏目: 出版日期: 2025-09-17
Title:
Application of Silt Solidification and Resource Utilization Technology in Songshan Lake Area of Dongguan
作者:
李福畴1， 孙先锋1， 张志刚2， 刘文生3
（1.广州资源环保科技股份有限公司，广东 广州 510699；2.中国市政工程华北设计研究总院有限公司，天津 300020；3.东莞市广水利工程咨询有限公司，广东 东莞 523000）
Author(s):
LI　Fu-chou1， SUN　Xian-feng1， ZHANG　Zhi-gang2， LIU　Wen-sheng3
（1. Guangzhou Resource Environmental Protection Technology Co. Ltd.， Guangzhou 510699， China；2. North China Municipal Engineering Design Research Institute Co. Ltd.， Tianjin 300020， China； 3. Dongguan Guangshuili Engineering Consulting Co. Ltd.， Dongguan 523000， China）
关键词:
河道淤泥;  固化稳定化;  重金属污染;  资源化利用;  无废城市
Keywords:
river silt;  solidification and stabilization;  heavy metal contamination;  resource utilization;  zero-waste city
摘要:
针对东莞市东引运河流域松山湖片区底泥重金属污染严重、传统处置技术二次污染风险高的问题，提出“筛分-机械脱水-固化稳定化”的集成工艺链。通过投加IR+CMC（质量比为9.5%∶0.5%）复配药剂，实现铬浸出浓度降低57%~93%（100 μg/L）；研发多级压滤协同脱水系统，使泥饼含水率降至40%以下。工程应用实践表明，67×104m3污染底泥经处理后，70%转化为绿化种植土（有机质≥5%）和工程回填土（承载力≥80 kPa），沙料资源化率18.7%，尾水回用率达100%。技术经济分析显示，该工艺相较传统填埋法处理成本降低30%，节约土地资源20%~30%。
Abstract:
To address severe heavy metal contamination in sediment from the Songshan Lake area of Dongyin canal basin in Dongguan and the high secondary pollution risks of traditional disposal methods, this study proposes an integrated process chain of screening-mechanical dehydration-solidification and stabilization. By adding a compound reagent (IR+CMC, mass ratio 9.5%∶0.5%), chromium leaching concentration was reduced by 57%-93% (100 μg/L). A multi-stage pressure filtration system was developed to lower the moisture content of dewatered sludge cakes to below 40%. Engineering applications demonstrated that 670 000 m3 of contaminated sediment was treated, with 70% converted into greening soil (organic matter ≥5%) and engineering backfill soil (bearing capacity ≥ 80 kPa), achieving an 18.7% sand resource recovery rate and 100% tailwater reuse. Technical-economic analysis revealed a 30% reduction in treatment costs compared to traditional landfilling, along with 20%-30% land resource savings.
更新日期/Last Update: 2025-09-17