Free Ammonia Pretreatment Improves Degradation of Secondary Sludge During Aerobic Digestion | |
Wang, Qilin1,2; Wei, Wei3; Liu, Sitong4; Yan, Mingquan4; Song, Kang5; Mai, Jingjing1; Sun, Jing6; Ni, Bing-Jie6; Gong, Yanyan7,8 | |
刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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2018 | |
卷号 | 6期号:1页码:1105-1111 |
关键词 | Secondary sludge Aerobic digestion Free ammonia Degradation Dewaterability |
ISSN号 | 2168-0485 |
DOI | 10.1021/acssuschemeng.7b03403 |
英文摘要 | Aerobic digestion is commonly used to achieve secondary sludge reduction in the small-size wastewater treatment plants. Nevertheless, secondary sludge degradation is usually restricted by the slow hydrolysis rate and low degradable percentage of secondary sludge. Here, we present an innovative approach using pretreatment of free ammonia (FA, i.e. NH3), a renewable chemical from wastewater, to improve the degradation of secondary sludge during aerobic digestion. The secondary sludge was degraded by 36 +/- 4% (volatile solids (VS) basis) within 15 days of aerobic digestion while being pretreated at 300 mg NH3-N/L (pH 9.0; total ammonia nitrogen = 800 mg N/L) for 24 h, whereas only 23 +/- 3% (VS basis) of the secondary sludge without FA pretreatment was degraded over the same period. Similarly, the production of inorganic nitrogen also increased from 27 +/- 2 to 38 +/- 2 mg N/g VS after implementing FA pretreatment, corroborating the idea that degradation of secondary sludge was effectively improved by FA pretreatment. Further analysis by model revealed that the improved hydrolysis rate and increased degradable percentage of secondary sludge were responsible for the enhanced sludge degradation in aerobic digestion. It was also found that FA pretreatment would produce an aerobic digestate with a better stability and dewaterability, as indicated by the lower degradable percentage of digestate and the decrease of capillary suction time from 38 +/- 1 to 34 +/- 1 s, respectively. Economic analysis indicates that the FA pretreatment approach would be economically favorable when the sludge transport and disposal cost is higher than $40/wet tone. |
资助项目 | Australian Research Council Discovery Early Career Researcher Award[DE160100667] ; One-Hundred Scholar Award from Chinese Academy of Sciences[Y75Z01-1-401] |
WOS关键词 | WASTE-ACTIVATED-SLUDGE ; ANAEROBIC METHANE PRODUCTION ; WATER TREATMENT ; NITROUS-ACID ; BIODEGRADABILITY ; ENHANCEMENT ; REMOVAL |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000419536800116 |
资助机构 | Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; Australian Research Council Discovery Early Career Researcher Award ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences ; One-Hundred Scholar Award from Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/342005/30043] ![]() |
专题 | 水生生物研究所_水环境工程研究中心_期刊论文 |
通讯作者 | Wang, Qilin; Song, Kang |
作者单位 | 1.Griffith Univ, Griffith Sch Engn, 170 Kessels Rd, Nathan, Qld 4111, Australia 2.Griffith Univ, Ctr Clean Environm & Energy, 58 Parklands Dr, Gold Coast, Qld 4222, Australia 3.Univ Queensland, Adv Water Management Ctr, Res Rd, St Lucia, Qld 4072, Australia 4.Peking Univ, Key Lab Water & Sediment Sci, Dept Environm Engn, Minist Educ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Inst Hydrobiol, 7 Donghu South Rd, Wuhan 430072, Hubei, Peoples R China 6.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resources Reuse, 1239 Siping Rd, Shanghai 200092, Peoples R China 7.Jinan Univ, Sch Environm, Guangzhou Key Lab Environm Exposure & Hlth, 601 Huangpu West Ave, Guangzhou 510632, Guangdong, Peoples R China 8.Jinan Univ, Guangdong Key Lab Environm Pollut & Hlth, 601 Huangpu West Ave, Guangzhou 510632, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Qilin,Wei, Wei,Liu, Sitong,et al. Free Ammonia Pretreatment Improves Degradation of Secondary Sludge During Aerobic Digestion[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(1):1105-1111. |
APA | Wang, Qilin.,Wei, Wei.,Liu, Sitong.,Yan, Mingquan.,Song, Kang.,...&Gong, Yanyan.(2018).Free Ammonia Pretreatment Improves Degradation of Secondary Sludge During Aerobic Digestion.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(1),1105-1111. |
MLA | Wang, Qilin,et al."Free Ammonia Pretreatment Improves Degradation of Secondary Sludge During Aerobic Digestion".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.1(2018):1105-1111. |
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