Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment
文献类型：期刊论文
| 作者 | Wang, Yawei; Xiao, Qingcong; Zhong, Hui; Zheng, Xiang; Wei, Yuansong |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2016-01 |
| 卷号 | 39期号:0页码:29-36 |
| 关键词 | Microwave pretreatment Sewage sludge Molecular weight distribution Phosphorus recovery Struvite |
| 英文摘要 | Microwave (MW) hybrid processes are able to disrupt the flocculent structure of complex waste activated sludge, and help promote the recovery of phosphorus as struvite. In this study, to optimize struvite yield, (1) the characteristics of matter released in MW-hybrid treatments were compared, including MW, MW-acid, MW-alkali, MW-H2O2, and MW-H2O2-alkali. The results showed that selective release of carbon, nitrogen, phosphorus, Ca2+, and Mg2+ achieved by sludge pretreatment using MW-hybrid processes. MW-H2O2 is the recommended sludge pretreatment process for phosphorus recovery in the form of struvite. The ratio of Mg2+: NH4+ -N:PO43--P was 1.2: 2.9: 1 in the supernatant. (2) To clarify the effects of organic matter on struvite recovery, the composition and molecular weight distribution of organic matters were analyzed. Low molecular weight COD was found to facilitate the removal rate of NH4 +-N and PO43-P via crystallization, and the amorphous struvite crystals (< 1 kDa) from the filtered solutions had high purity. Therefore, the present study reveals the necessity of taking into consideration the interference effect of high molecular weight organic matters during struvite crystallization from sewage sludge. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36033]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Yawei,Xiao, Qingcong,Zhong, Hui,et al. Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,39(0):29-36. |
| APA | Wang, Yawei,Xiao, Qingcong,Zhong, Hui,Zheng, Xiang,&Wei, Yuansong.(2016).Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment.JOURNAL OF ENVIRONMENTAL SCIENCES,39(0),29-36. |
| MLA | Wang, Yawei,et al."Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment".JOURNAL OF ENVIRONMENTAL SCIENCES 39.0(2016):29-36. |
入库方式： OAI收割
来源：生态环境研究中心
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