农业环境科学学报Issue(7)：1277-1286,10.DOI:10.11654/jaes.2015.07.008
污泥生物炭基堆肥对锰污染土壤性质及其修复的影响
Effects of Sludge Biochar Based Compost on Properties and Remediation of Soil Contaminated by Manganese
摘要
Abstract
With the rapid urbanization, sewage sludge, an inevitable major byproduct of wastewater treatment, is being produced massively with dramatic increase and is thus required to be treated effectively. In this work, sewage sludge was converted into biochar through pyrolysis and then composted into a compost fertilizer with pig manure. Effects of sludge biochar on the composting and of sludge biochar based com-post on the physic-chemical and microbial properties of a manganese-contaminated soil were investigated. Results show that the BET-sur-face and pH of sewage sludge biochar largely increased after pyrolysis. Addition of sludge biochar accelerated the composting process and improved the quality of the compost. Sludge biochar based composts significantly improved soil pH and electrical conductivity, increased bacterial and fungal community population, and enhanced activities of dehydrogenase and urease. Quantities of ammonia-oxidizing archaea and ammonia-oxidizing bacteria in soil were also increased by applying sludge biochar based composts. Applying sludge biochar based compost caused the partial conversion of acid-soluble manganese into residual fraction, decreasing the bioavailability of soil manganese, and in turn increased cabbage yield greatly.关键词
水热污泥/生物炭/堆肥/微生物/重金属有效性Key words
hydrothermal treated sludge/biochar/composting/microorganism/heavy metal bioavailability分类
资源环境引用本文复制引用
张翔,余真,张耿崚,汪印..污泥生物炭基堆肥对锰污染土壤性质及其修复的影响[J].农业环境科学学报,2015,(7):1277-1286,10.基金项目
国家自然科学基金面上项目（51176197），中国科学院重点部署项目（KZZD- EW-16），厦门市科技创新平台项目 （）
