Effect of Aeration Rate on Forced-Aeration Composting of Sewage Sludge and Maize straw

被引:0
|
作者
Hu, Bo [1 ]
Wang, Zichao [1 ]
Gao, Mengchun [1 ]
She, Zonglian [1 ]
Zhao, Congcong [1 ]
机构
[1] Ocean Univ China, Key Lab Marine Environm Sci & Ecol, Minist Educ, Qingdao 266100, Shandong, Peoples R China
关键词
Composting; Sewage sludge; Maize straw; Aeration rate; Germination index; MATURITY;
D O I
10.4028/www.scientific.net/AMM.178-181.843
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The composting of sewage sludge and maize straw was investigated in forced-aeration composting systems at aeration rates of 0.28, 0.56 and 0.83 1 min(-1) kg(-1) organic matter, corresponding to pile A, pile B and pile C. The composting temperature in three piles met the hygienic safety criterion, and final electrical conductivity did not exceed the limit value of 3000 mu S cm(-1). The final NH4+-N content in pile C exceeded the limit value of 400 mg kg(-1). The final NO3--N content, cation exchange capacity and germination index in pile B were superior to those in pile A and pile C.
引用
收藏
页码:843 / 846
页数:4
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