利用污泥熟肥作为高含水率污泥堆肥调理剂  

Applying matured sludge compost as sludge composting conditioner

作　　者：刘卫[1,2] 袁兴中[1,2] 欧阳建新[3,4] 钟华[1,2] 曾光明[1,2] 黄华军[1,2] 柴琦[1,2] 

机构地区：[1]湖南大学环境科学与工程学院,长沙410082 [2]环境生物与控制教育部重点实验室(湖南大学),长沙410082 [3]湖南大学土木工程学院,长沙410082 [4]广州市水务局,广州510640

出　　处：《环境工程学报》2013年第6期2349-2355,共7页Chinese Journal of Environmental Engineering

基　　金：广州市水务局科技计划项目资助

摘　　要：采用静态强制通风好氧堆肥的方法,以木屑作为对比,考察了利用污泥熟肥作为调理剂对污泥堆肥过程的影响。结果表明,与以木屑作为调理剂的污泥堆体(对照组)相比,以污泥熟肥作为调理剂的污泥堆体(实验组)升温快,高温阶段(>50℃)持续时间长达10 d,满足粪便无害化卫生标准的要求,而对照组仅持续了2 d;实验组腐熟的堆肥含水率从60%降到39%,下降了21%,pH维持在7.5～8.5范围内,微生物活性较强,而对照组含水率仅下降15%,pH始终低于7.5;实验组种子发芽指数(GI)在第14天就回升到80%以上,基本上去除了植物毒性,而对照组GI在第22天才回升到50%。总体而言,污泥熟肥能显著改善堆肥中微生物的微环境,促进有机物的降解,缩短堆肥腐熟时间,是一种优质的调理剂。Abstract The effect of sludge matured compost on studied. It showed that, compared with sawdust （matched sewage sludge static forced-aeration composting was group） , the compost mixed with matured sludge com- post （experimental group） warmed faster. And the high-temperature stage （ 〉 50℃ ） continued for 10 days, which achieved the sanitary standard for the non-hazardous treatment of night soil, while the high-temperature stage of matched group lasted for only two days. The water content of experimental group decreased from 60% to 39%, decreased by 21%, and the pH value were between 7.5 and 8.5, which promoted the activity of mi- crobe. But the water content of matched group decreased only by 15%, and the pH value was always lower than 7.5. The germination index （GI） of experimental group increased to 80% on the 14th day, which suggested that the biological toxicity of compost was almost removed. GI of matched group was lower than 50% until the 22th day. All in all, matured sludge compost conditioner the degradation of the organic matter, and accelerate riot composting conditioner. can improve the microenvironment of composting, promote the composting process. Matured sludge compost is a supe-

关 键 词：污泥熟肥 调理剂 污泥堆肥 

分 类 号：X703[环境科学与工程—环境工程]