Document Detail

Novel bulking agent from clay residue for food waste composting.
MedLine Citation:
PMID:  20171087     Owner:  NLM     Status:  MEDLINE    
New granular material from clay residue was investigated as a bulking agent for food waste composting. Five mixing ratios of granule were conducted in a laboratory scale reactor at the desired low rate of air (0.05 l min(-1)). The evolution of temperature and the accumulative CO(2) emissions were monitored. Physical and chemical changes, N loss, and organic matter degradation of compost were also examined. Adoption of granules of 15% V/V (FAS 31.6%) enhanced the thermophilic composting and CO(2) emissions; thus satisfying the Process to Further Reduce Pathogens (PFRP, USEPA) as well as obtaining the highest rate constant of organic matter degradation (k=0.005 day(-1)). As the amount of granules was doubled (35% V/V), the temperature was not only cooled, but also promoted the substantial N loss (54%). It was suggested that bulking agent from clay residue can be used beneficially as reusable media for microbial inoculation as analyzed by SEM.
Banjarata Jolanun; Sirintornthep Towprayoon
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-02-18
Journal Detail:
Title:  Bioresource technology     Volume:  101     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-03-15     Completed Date:  2010-06-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  4484-90     Citation Subset:  IM    
Copyright Information:
(c) 2010 Elsevier Ltd. All rights reserved.
Department Environmental Engineering, Rajamangala University of Technology Lanna, 128 Hauykeaw Rd., Muang, Chaingmai 50300, Thailand.
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MeSH Terms
Aluminum Silicates / chemistry*
Carbon Dioxide / analysis
Microscopy, Electron, Scanning
Nitrogen / analysis
Organic Chemicals / chemistry
Refuse Disposal*
Time Factors
Reg. No./Substance:
0/Aluminum Silicates; 0/Organic Chemicals; 0/Soil; 124-38-9/Carbon Dioxide; 1302-87-0/clay; 7727-37-9/Nitrogen

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