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http://dx.doi.org/10.17137/Korrae.2011.19.2.7

Discharge Standards of Kitchen-Disposer Wastewater by Treatment Types  

Chang, Ho Nam (Department of Chemical and Biomolecular Engineering, KAIST)
Jeong, Chang Moon (Department of Chemical and Biomolecular Engineering, KAIST)
Kang, Jong Won (Department of Chemical and Biomolecular Engineering, KAIST)
Choi, Jin-dal-rae (Department of Chemical and Biomolecular Engineering, KAIST)
Park, Young Sook (SoonChunHyang Univ.)
Ku, Ja-Kong (Jungwon Univ.)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.19, no.2, 2011 , pp. 55-69 More about this Journal
Abstract
Use of disposer at the kitchens of Korean apartments is inevitable in treating their foodwaste having a water content of more than 80%. Also we have to ensure that this extra disposer-foodwaste BOD loadings be treated properly by installing/operating a pre-treatment system before this wastewater enters public sewer system. However, the degree of BOD removal should not be excessive since a BOD/N ratio higher than 5 is required for removing N/P at a municipal wastewater treatment plant. The removal of BOD/N in the pretreatment system rather than BOD alone can be an alternative solution in solving this problem. The particles separated by sedimentation, screen or packed-bed can be anaerobically digested at apartment sites to generate biogas that can be used for simple digester heating and to generate volatile fatty acids (VFAs) for nitrogen removal. We suggest that Korean government grants a temporary license (say for 5 years) to foodwaste treatment companies in collaboration with apartment construction companies which may do business and develop various kinds of disposer-foodwaste treatment systems in diverse wastewater discharge systems of Korean apartments.
Keywords
Disposer; Pre-treatment system of foodwaste; BOD/COD removal; Nitrogen removal;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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