Sewage Sludge Aerobic Composting Technology Research Progress
نویسندگان
چکیده
منابع مشابه
Biodegradation of Lignocelluloses in Sewage Sludge Composting and Vermicomposting
Aims of the Study: The aim of this study was to determine the amount of lignin degradation and biodegradation of organic matter and change of biomass under compost and vermicomposting of sewage sludge. Materials & Methods: Sawdust was added to sewage sludge at 1:3 weight bases to Carbon to Nitrogen ratio of 25:1 for composting or vermicomposting. Lignin and volatile solids were deter...
متن کاملEffect of temperature on composting of sewage sludge.
The effect of temperature on the composting reaction of sewage sludge was investigated at 50, 60, and 70 degrees C. The total amount of CO(2) evolved and the final conversion of volatile matter were maximum at 60 degrees C., suggesting that the optimal temperature for composting was around 60 degrees C. The specific CO(2) evolution rate (moles of CO(2) evolved per hour per viable cell) was maxi...
متن کاملVariations of metal distribution in sewage sludge composting.
In the study, the variations of heavy metal distributions (of Cu, Mn, Pb, and Zn) during the sewage sludge composting process were investigated by sequential extraction procedures. The total content of Cu and Zn in the composted mixture increased after the composting process. Mn and Zn were mainly found in mobile fractions (exchangeable fraction (F1), carbonate fraction (F2), and Fe/Mn oxide fr...
متن کاملApplcation of Sewage Sludge in Composting Technology for Eradication of Pathogenic Bacteria
The conducted work included , eradication of pathogenic bacteria by the recycling of some organic residues through compost processing, and investigation on the impacts of using such produced composts for inducing the safe agricultural production. The organic residues were mixed at ratios to attain comparable initial C/N ratio of about 30:1 through all the tested heaps before composting. The com...
متن کاملAquaNereda Aerobic Granular Sludge Technology Aerobic Granular Sludge
This advanced nutrient removal process can reduce footprint up to 75% and energy up to 50% when compared to conventional activated sludge systems. One of the defining characteristics of the granule is rapid settling which in turn allows for an increase in the biomass concentration. The granules are comprised of true biomass and do not require carriers. The layered microbial community that forms...
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ژورنال
عنوان ژورنال: AASRI Procedia
سال: 2012
ISSN: 2212-6716
DOI: 10.1016/j.aasri.2012.06.052