Application of a recyclable plastic bulking agent for sewage sludge composting | |
Zheng Guo-Di; Gao Ding; Chen Tong-Bin | |
2014 | |
关键词 | Water treatment Composting Oxygen Piles Sewage sludge |
英文摘要 | A recyclable plastic bulking agent (RPBA) that can be screened and reused was developed to improve sludge composting and to reduce costs. Two RPBAs were developed: RPBA35 (35. mm in diameter) and RPBA50 (50. mm in diameter). The objective was to study the influence of size and quantity of RPBA on temperature, oxygen content, water removal during sludge composting, and phytotoxicity of the compost. RPBAs of both sizes improved the temperature, oxygen supply, and water removal compared with the treatment with no RPBA, and obtained phytotoxic-free compost. RPBA50 more effectively removed water than RPBA35. Oxygen diffusion rate in the composting pile containing RPBA50 was higher than in the treatment with no RPBA. When the RPBA50: sludge mixture ratio was above 1:1.5, the period over which the temperature exceeded 55. C was insufficient to meet the harmless treatment requirement. The water evaporation rate was highest at a ratio of 1:2. 2013 Published by Elsevier Ltd. |
出处 | Bioresource Technology |
卷 | 152页:329-336 |
收录类别 | EI |
内容类型 | EI期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/31467] |
专题 | 地理科学与资源研究所_历年回溯文献 |
推荐引用方式 GB/T 7714 | Zheng Guo-Di,Gao Ding,Chen Tong-Bin. Application of a recyclable plastic bulking agent for sewage sludge composting. 2014. |
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