title: Co-composting of gelatin industry sludge combined with organic fraction of municipal solid waste and poultry waste employing zeolite mixed with enriched nitrifying bacterial consortium.
abstract: This work illustrates the co-composting of gelatin industry sludge (GIS) combined with organic fraction of municipal solid waste (OFMSW) and poultry waste (PW) employing 10% zeolite mixed with enriched nitrifying bacteria consortium (ENBC). Five piles of GIS were prepared mixed with OFMSW and PW at 2:1:0.5, 4:1:0.5, 6:1:0.5 and 8:1:0.5 and without GIS 0:1:0.5 (dry weight basis) served as control, while 10% zeolite mixed with ENBC was inoculated in all piles and composted for 42days. The Pile-4 with GIS, OFMSW and PW ratio 6:1:0.5 and 10% zeolite+ENBC were drastically reduced the nitrogen loss and enhance the mineralization rate as compare to other piles. The co-amendment of 6% GIS effectively buffered the pH between ∼7.5 to 8.0 and shortened the compost maturity period, while lower concentration of GIS was comparatively delayed the early decomposition. Therefore, our results suggested that suitability of 10% zeolite+ENBC with initial feedstock ratio 6:1:0.5 as the best formulation for the composting of GIS into value-added stable product.
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Department of Biotechnology, Amicable Knowledge Solution University, Satna, India; Regional Office, Madhya Pradesh Pollution Control Board, Jabalpur, India.
authors.forename: Mukesh Kumar
authors.initials: MK
authors.lastname: Awasthi
authors.affiliation: Madhya Pradesh Private Universities Regulatory Commission, Bhopal, India.
authors.forename: Akhilesh Kumar
authors.initials: AK
authors.lastname: Pandey
authors.affiliation: Regional Office, Madhya Pradesh Pollution Control Board, Jabalpur, India.
authors.forename: Pushpendra Singh
authors.initials: PS
authors.lastname: Bundela
authors.affiliation: Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, PR China.
authors.forename: Jonathan W C
authors.initials: JWC
authors.lastname: Wong
authors.affiliation: Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling 712100, PR China.
authors.forename: Ronghua
authors.initials: R
authors.lastname: Li
authors.affiliation: College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China. Electronic address: zhangzq58@126.com.
authors.forename: Zengqiang
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000818:Animals; D005780:Gelatin; D006863:Hydrogen-Ion Concentration; D008372:Manure / Q000382:microbiology; D059013:Microbial Consortia / Q000502:physiology*; D058465:Nitrification; D009584:Nitrogen / Q000378:metabolism; D011200:Poultry; D012037:Refuse Disposal / Q000379:methods*; D012722:Sewage; D012987:Soil / Q000737:chemistry; D062611:Solid Waste; D014865:Waste Disposal, Fluid / Q000379:methods*; D017641:Zeolites
chemical_list: D008372:Manure; D012722:Sewage; D012987:Soil; D062611:Solid Waste; D017641:Zeolites; D005780:Gelatin; D009584:Nitrogen
keywords: Bacteria consortium; Co-composting; Gelatin industry sludge; Inoculation; Poultry waste