IGSNRR OpenIR
Adding a recyclable amendment to facilitate sewage sludge biodrying and reduce costs
Wang, Kan1; Wang, Yang-Yan1; Chen, Tong-Bin2; Zheng, Guo-Di2; Cao, Meng-Ke1; Cai, Lu1
2020-10-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume256Pages:10
Corresponding AuthorCai, Lu(cailu@nbu.edu.cn)
AbstractFinding an economical amendment, available in a steady supply, is needed to support the biodrying industrialization. This research developed a recyclable biodrying amendment (RBA) to condition the biodrying of sewage sludge. The pilot-scale treatment (T-R), which included the addition of equivalent weights of RBA and sawdust as amendments, resulted in a higher pile temperature and longer thermophilic phase compared to the control (T-C), which used only sawdust as an amendment. The final moisture content levels were below 50% with both T-R and T-C. The heat use efficiency for water evaporation was 72.2% and 73.0% in T-R and T-C, respectively. The activity of alpha-amylase and cellulose 1,4-beta-cellobiosidase increased during the thermophilic phase, while the activity of endo-1,4-beta-glucanase and endo-1,4-beta-xylanase decreased during the thermophilic phase with both T-R and T-C. The fouriertransform infrared spectra indicated that adding the RBA resulted in good biodegradability of the lipids, proteins, and polysaccharides. The humic acid to fulvic acid ratio in T-R and T-C increased from 0.33 (T-R) and 0.35 (T-C) on day 0-0.46 (T-R) and 0.45 (T-C) on day 21, indicating the humification process. The RBA recovery rate was 95.6% and can be reused. These findings highlight that adding RBA showed satisfactory biodrying performance, reduced the amendment cost, and the biodrying product could be incinerated without energy deficit. (C) 2020 Elsevier Ltd. All rights reserved.
KeywordBiodrying Biodegradation Bioheat Sewage sludge Recyclable amendment
DOI10.1016/j.chemosphere.2020.127009
WOS KeywordBULKING AGENTS ; GASEOUS EMISSIONS ; COMPOST ; MATURITY ; ASSOCIATION ; NITROGEN ; QUALITY
Indexed BySCI
Language英语
Funding ProjectPublic Welfare Technology Research Program of Zhejiang Province[LGF20E080011] ; Scientific Research Project of Department of Education of Zhejiang Province[Y201940862] ; National Key Research and Development Program[2016YFC0401102-5] ; K. C. Wong Magna Fund at Ningbo University
Funding OrganizationPublic Welfare Technology Research Program of Zhejiang Province ; Scientific Research Project of Department of Education of Zhejiang Province ; National Key Research and Development Program ; K. C. Wong Magna Fund at Ningbo University
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000540870300018
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162339
Collection中国科学院地理科学与资源研究所
Corresponding AuthorCai, Lu
Affiliation1.Ningbo Univ, Sch Civil & Environm Engn, 818 Fenghua Rd, Ningbo 315211, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kan,Wang, Yang-Yan,Chen, Tong-Bin,et al. Adding a recyclable amendment to facilitate sewage sludge biodrying and reduce costs[J]. CHEMOSPHERE,2020,256:10.
APA Wang, Kan,Wang, Yang-Yan,Chen, Tong-Bin,Zheng, Guo-Di,Cao, Meng-Ke,&Cai, Lu.(2020).Adding a recyclable amendment to facilitate sewage sludge biodrying and reduce costs.CHEMOSPHERE,256,10.
MLA Wang, Kan,et al."Adding a recyclable amendment to facilitate sewage sludge biodrying and reduce costs".CHEMOSPHERE 256(2020):10.
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