河道清淤淤泥基绿化种植土的制备及可行性研究  

Preparation and Feasibility Study of the River Dredging Sludge Based Planting Soil for Greening

作　　者：李岚峰 胡兴龙 林立 万情 聂怀军 江东 LI Lan-feng;HU Xing-long;LIN Li;WAN Qing;NIE Huai-jun;JIANG Dong(Shuimu jingu Environmental Technology Co,Ltd.,Foshan 528200,China;Horwath Environmental Science Co,Ltd,Wuhan 430200,China)

机构地区：[1]水木金谷环境科技有限公司,广东佛山528200 [2]浩华环境科学有限责任公司,湖北武汉430200

出　　处：《环境科技》2021年第5期36-41,共6页Environmental Science and Technology

基　　金：佛山市科技创新项目(2017IT100192)。

摘　　要：采用新型搅拌分散工艺和快速好氧堆肥技术将河道清淤淤泥脱水泥饼与生物质掺料制备成河道清淤淤泥基绿化种植土,并对不同配方淤泥基绿化种植土在堆肥过程中理化性质的变化情况进行对比分析,同时在腐熟后淤泥基绿化种植土里进行种子发芽实验和盆栽实验。试验结果表明:随着生物质掺量的增加,堆体温度越高,土样堆积发酵效果越好。发酵过程中微生物分解生物质产生有机酸和腐殖酸,有效调控了土样的pH值,并通过降低水溶性氨氮含量、转化碱金属形态使土样的含盐量得到有效控制。种子发芽率和植株盆栽实验证实了河道清淤淤泥制备绿化种植土的可行性,为我国河道内源治理中淤泥的合理处置问题提供了科学思路。The river dredging sludge based planting soil for greening was prepared by using the new mixing and dispersion technology and rapid aerobic composting technology.The changes of physicochemical properties of sludge based planting soil for greening with different formulations during composting were compared and analyzed,and the seed germination experiment and the pot experiment were carried out in the soil of afforestation based on mud base after decomposition.The results showed that with the increase of biomass content,the higher the pile temperature,the better the effect of soil stacking fermentation.In the fermentation process,microorganisms decompose biomass to produce organic and humic acids,and the pH value of soil samples was effectively controlled.The salt content of soil samples was effectively controlled by reducing the content of water-soluble ammonia nitrogen and transforming the form of alkali metals.The seed germination rate and plant pot experiment confirmed the feasibility of planting soil for greening from river dredging sludge,which provided a scientific idea for the reasonable disposal of sludge in river endogenous control in China.

关 键 词：河道清淤淤泥 绿化种植土 好氧堆肥 盆栽实验 

分 类 号：X7[环境科学与工程—环境工程]