期刊
BIORESOURCE TECHNOLOGY
卷 190, 期 -, 页码 516-521出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.03.104
关键词
Sludge composting; Pumice; Water absorb; Reuse; Sucrose
资金
- National Natural Science Foundation of China [51278146, 51408151]
- Water Environmental Quality Improvement Technology Integration and Comprehensive Demonstration in Control Unit of Songhua River in Harbin City [2013ZX07201007]
- China Postdoctoral Science Foundation [2012M520755]
- China Postdoctoral Science Special Foundation [2014T70357]
- Postdoctoral Science Special Foundation of Hei Longjiang [LBH-TZ0510]
- Specialized Research Fund for the Doctoral Program of Higher Education [20132302120075]
In this study, the impacts of reused and sucrose-decorated pumice as bulking agents on the composting of sewage sludge were evaluated in the lab-scale reactor. The variations of temperature, pH, NH3 and CO2 emission rate, moisture content (MC), volatile solid, dissolved organic carbon, C/N and the water absorption characteristics of pumice were detected during the 25 days composting. The MC of pumice achieved 65.23% of the 24 h water absorptivity within the first 2 h at the mass ratio of 0.6:1 (pumice:sewage sludge). Reused pumice increased 23.68% of CO2 production and reduced 21.25% of NH3 emission. The sucrose-decorated pumice reduced 43.37% of nitrogen loss. These results suggested that adding pumice and sucrose-decorated pumice in sludge composting matrix could not only adjust the MC of materials, but also improve the degradation of organic matters and reduce nitrogen loss. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据