| Title: | Transformation and utilization of slowly biodegradable organic matters in biological sewage treatment of anaerobic anoxic oxic systems |
| Author(s): | Zhang QH; Jin PK; Ngo HH; Shi X; Guo WS; Yang SJ; Wang XC; Wang X; Dzakpasu M; Yang WN; Yang L; |
| Address: | "Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China. International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia. Electronic address: h.ngo@uts.edu.au. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia. Research Center for Eco-Envrionmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia" |
| DOI: | 10.1016/j.biortech.2016.06.068 |
| ISSN/ISBN: | 1873-2976 (Electronic) 0960-8524 (Linking) |
| Abstract: | "This study examined the distribution of carbon sources in two anaerobic anoxic oxic (AAO) sewage treatment plants in Xi'an and investigated the transformation characteristics and utilization potential of slowly biodegradable organic matters (SBOM). Results indicated under anaerobic and aerobic conditions, SBOM could be transformed at a rate of 65% in 8h into more readily biologically utilizable substrates such as volatile fatty acids (VFAs), polysaccharides and proteins. Additionally, non-biodegradable humus-type substances which are difficult to biodegrade and readily accumulate, were also generated. These products could be further hydrolyzed to aldehyde and ketone compounds and then transformed into substances with significant oxygen-containing functional groups and utilized subsequently. The molecular weights of proteinoid substances had a wide distribution and tended to decrease over time. Long hours of microbial reaction increased the proportion of micromolecular substances. This particular increase generated significant bioavailability, which can greatly improve the efficiency of nitrogen removal" |
| Keywords: | "Anaerobiosis *Biodegradation, Environmental Carbon/metabolism Denitrification Hydrolysis Nitrogen/metabolism Organic Chemicals/metabolism Oxygen/chemistry/*metabolism *Sewage/chemistry Waste Disposal Facilities Waste Disposal, Fluid/*methods Anaerobic ano;" |
| Notes: | "MedlineZhang, Q H Jin, P K Ngo, H H Shi, X Guo, W S Yang, S J Wang, X C Wang, X Dzakpasu, M Yang, W N Yang, L eng England 2016/06/28 Bioresour Technol. 2016 Oct; 218:53-61. doi: 10.1016/j.biortech.2016.06.068. Epub 2016 Jun 18" |
