期刊论文

Aerobic Composting Performance of Dredged Sediment Enhanced by Microbial Agent Addition

中文

中国给水排水

1000-4602

2021

37

13

70-76

10.19853/j.zgjsps.1000-4602.2021.13.012

湖南省自然科学基金资助面上项目（2020JJ4609）； 湖南省重点领域研发计划项目（2019SK2191）；

本校为第一机构

为解决清淤底泥好氧堆肥存在有机质含量低、高温阶段升温不足的问题,从自然堆肥过程中分离提取优势菌株,制成微生物复合菌剂,通过投加菌剂强化清淤底泥好氧堆肥效果。结果表明,与对照组相比,试验组堆体温度升高快,高温阶段持续时间长,高于55℃的时间可达9 d,满足《粪便无害化卫生要求》（GB 7959—2012）的规定。菌剂投加促进了堆料腐熟,种子发芽指数从86.9%提高到96.3%。试验组和对照组的C/N值分别降低了22.0%和14.3%,可见投加菌剂还可以提高堆料保氮效果。

Aerobic composting of dredged sediment has the problems of low organic matter content and slow temperature rise in high temperature stage. To deal with the problems,dominant strains were isolated from the natural composting process to prepare mixed microbial agent,and it was applied to enhance the aerobic composting performance of dredged sediment. Compared with the control group,the experimental group possessed higher rate of temperature rise and longer high temperature stage,and the days with temperature above 55 ℃ lasted for 9 days,which me...