[1]代浩,李连龙,包强,等.投加菌剂对清淤底泥好氧堆肥效果的强化作用[J].中国给水排水,2021,37(13):70-76.
　DAI Hao,LI Lian-long,BAO Qiang,et al.Aerobic Composting Performance of Dredged Sediment Enhanced by Microbial Agent Addition[J].China Water & Wastewater,2021,37(13):70-76.
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投加菌剂对清淤底泥好氧堆肥效果的强化作用

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第13期 页码: 70-76 栏目: 出版日期: 2021-07-01
Title:
Aerobic Composting Performance of Dredged Sediment Enhanced by Microbial Agent Addition
作者:
代浩1，李连龙1，包强1，关仕林1，李飞1，蒋昌波2,3,4
(1.中交一航局第三工程有限公司，辽宁大连116083；2.长沙理工大学水利工程学院，湖南长沙410114；3.洞庭湖水环境治理与生态修复湖南省重点实验室，湖南长沙410114；4.湖南省环境保护河湖疏浚污染控制工程技术中心，湖南长沙410114)
Author(s):
DAI Hao1,LI Lian-long1,BAO Qiang1,GUAN Shi-lin1,LI Fei1,JIANG Chang-bo2,3,4
(1. No.3 Engineering Company Ltd. of CCCC First Harbor Engineering Company Ltd., Dalian 116083, China； 2. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, China； 3. Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China； 4. Engineering and Technical Center of Hunan Provincial Environmental Protection for River-lake Dredging Pollution Control, Changsha 410114, China)
关键词:
菌剂; 好氧堆肥; 清淤底泥; 种子发芽指数; C/N
Keywords:
microbial agent; aerobic composting; dredged sediment; seed germination index; C/N
摘要:
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。
Abstract:
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 met the requirement of Hygienic Requirements for Harmless Disposal of Night Soil (GB 7959-2012). The addition of mixed microbial agent promoted the maturity of the compost, and seed germination index increasing from 86.9% to 96.3%. Moreover, C/N ratios of the experimental and control groups decreased by 22.0% and 14.3%, respectively, indicating that the addition of mixed microbial agent could improve the nitrogen conservation of the compost.
更新日期/Last Update: 2021-07-01