DocumentCode
3156232
Title
Notice of Retraction
Final product of sewage sludge composting by recycling matured compost
Author
Xiang-yang Zhang ; Guo-qiang Wei
Author_Institution
Coll. of Environ. Sci. & Eng., Tongji Univ., Shanghai, China
fYear
2011
fDate
8-10 Aug. 2011
Firstpage
6239
Lastpage
6242
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Pilot-scale experiment was conducted on composting of sewage sludge from urban wastewater by recycling matured compost as a bulking agent. At the given ratio of sludge to matured compost = 1:2(v/v), and aeration rate 0.05m3/(m3·min), final product was gained and analyzed by measurement of nutrient (nitrogen, phosphorus, and Potassium), heavy metals, and polyacrylamide (PAM). As the experiment shown, PAM, as a kind of hazardous material in sludge, was degraded by 80.6% during composting, and only 1.17mg/g remained in the final product. Different kinds of heavy metals were concentrated after composting, and the total content of heavy metals increased by 42%~49%. Plenty of nutrients (N, P, and K) remained in the final product after composting, which was in favor of the application of final compost to plants growth.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Pilot-scale experiment was conducted on composting of sewage sludge from urban wastewater by recycling matured compost as a bulking agent. At the given ratio of sludge to matured compost = 1:2(v/v), and aeration rate 0.05m3/(m3·min), final product was gained and analyzed by measurement of nutrient (nitrogen, phosphorus, and Potassium), heavy metals, and polyacrylamide (PAM). As the experiment shown, PAM, as a kind of hazardous material in sludge, was degraded by 80.6% during composting, and only 1.17mg/g remained in the final product. Different kinds of heavy metals were concentrated after composting, and the total content of heavy metals increased by 42%~49%. Plenty of nutrients (N, P, and K) remained in the final product after composting, which was in favor of the application of final compost to plants growth.
Keywords
environmental degradation; hazardous materials; recycling; sewage treatment; sludge treatment; wastewater treatment; aeration rate; bulking agent; final product; hazardous material; heavy metals; matured compost; nutrient measurement; plant growth; polyacrylamide; recycling; sewage sludge composting; urban wastewater; Agriculture; Copper; Nitrogen; Recycling; Wastewater; Zinc; PAM; heavy metals; nutrients; sewage sludge composting;
fLanguage
English
Publisher
ieee
Conference_Titel
Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on
Conference_Location
Dengleng
Print_ISBN
978-1-4577-0535-9
Type
conf
DOI
10.1109/AIMSEC.2011.6009662
Filename
6009662
Link To Document