【摘要】 研究了自来水污泥脱水防粘预处理技术、高温好氧堆肥技术及其应用于园林种植效果。机械组成测定和电镜扫描结果表明,调理剂QS可以显著改善自来水污泥的粘结性及脱水性能;堆肥实验结果表明,预处理的自来水污泥与枯枝落叶按体积比3∶7混匀,加入尿素调节碳氮比,27 d后,可达腐熟,EM菌可以加快堆肥物料腐熟,19 d后,即可达腐熟要求;桉树盆栽实验结果表明,自来水污泥经堆肥化处理后,保水性提高,促进桉树生长,而且堆肥过程中添加EM菌可以进一步促进桉树生长。更多还原

【Abstract】 The pretreatment of anti-caking and dewatering and the high-temperature aerobic composting of waterworks sludge and the effects of the compost application on gardening were studied.The results of physical composition and scanning electron microscope indicated that,the conditioner QS significantly improved the caking property and dewatering performance of waterworks sludge.The results of composting showed that,composting of the pretreated waterworks sludge and litter(the volume ration was 3∶7) with added urea to regulate C/N could be maturity after 27 days.Adding EM agent could speed the maturity of the compost and shorten the composting time to 19 days.The result of pot experiment of eucalyptus showed that,the compost of waterworks sludge could increase the water holding capacity of the substrate and promote the growth of eucalyptus.Adding EM agent to the compost is better for the growth of eucalyptus.更多还原