不同方式处理污泥对废弃矿区土壤微生物的影响  

Effect of Sludge Treated by Different Methods on Soil Microorganisms in Abandoned Mining Areas

作　　者：杨长明[1] 牛京会 王德顺 范博博 YANG Chang-ming;NIU Jing-hui;WANG De-shun;FAN Bo-bo(College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;Gangling Wastewater Treatment Plant,Chaohu 238000,China)

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]巢湖市岗岭污水处理厂,安徽巢湖238000

出　　处：《中国给水排水》2019年第23期114-119,共6页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07603-003);上海市科学技术委员会科研计划项目(课题)“绿色技术银行示范应用研究”(16dz1206601)

摘　　要：为寻找适合巢湖流域的污泥处理处置方式及满足废弃矿区土壤修复对有机改良基质的需求,通过盆栽试验研究了添加脱水污泥(DS)、好氧发酵污泥(AFS)和厌氧消化污泥(ADS)后对巢湖流域废弃矿区土壤基本理化性质及微生物特性的影响。结果表明,添加上述3种不同方式处理的污泥均能明显提高废弃矿区土壤的有机质和氮、磷养分含量,pH值均有不同程度降低,而土壤电导率(EC)均明显增加,但仍低于植物正常生长的限值;同时,添加处理后的污泥可以显著增加土壤微生物生物量碳、氮含量,并促进脱氢酶、转化酶、磷酸酶和脲酶的活性。3种不同方式处理的污泥对废弃矿区土壤的质量具有不同程度的改善效果,且以好氧发酵污泥的改良效果最佳。In order to find suitable treatment and disposal methods of sewage sludge as well as meeting the demand of organic improved matrix for soil remediation of abandoned mining areas in Chaohu Lake Basin,a pot experiment was conducted to explore the effects of adding dewatered sludge(DS),aerobic fermentation sludge(AFS)and anaerobic digestion sludge(ADS)on basic physicochemical properties and microbial characteristics of soil in an abandoned mining area.The organic matter,nitrogen and phosphorus nutrients contents of the abandoned mining soil could be significantly increased by adding sludge that treated by different methods.The pH values decreased in varying degrees.The values of electrical conductivity(EC)increased significantly,but it was still lower than the normal limit for plant growth.At the same time,the soil microbial biomass carbon and nitrogen contents were significantly increased by adding the treated sludge,and the activities of dehydrogenase,invertase,phosphatase and urease were promoted.It could be seen that the sludge treated by three different methods had different degrees of improvement effect on the soil quality of the abandoned mining areas,and the AFS had the best improvement effect.

关 键 词：巢湖流域 废弃矿区土壤 脱水污泥 好氧发酵污泥 厌氧消化污泥 微生物特性 

分 类 号：TU992[建筑科学—市政工程]