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16.03.2017 | ORIGINAL ARTICLE | Ausgabe 1/2018

Journal of Material Cycles and Waste Management 1/2018

Classification and management of kitchen waste: disposals and proposals in Chaoyang district, Beijing, China

Zeitschrift:
Journal of Material Cycles and Waste Management > Ausgabe 1/2018
Autoren:
Yaya Wang, Bing Zang, Yu Liu, Guoxue Li

Abstract

The KW from Chaoyang District was mainly treated by incineration at present. The main purpose of this study was to analysis whether the properties of kitchen waste (KW) in Chaoyang District, Beijing were appropriate for anaerobic digestion (AD). The KW was obtained from four typical closed cleaning stations by sampling once per quarter. The results showed the classification of four different typical closed cleaning station based on living standard was around 90% with good classification levels except Erdaogou and all featured with high vegetables and peels contents. Variable pH with different typical closed cleaning station and sampling season and was suitable for AD other than composting. The high moisture content (MC) was also not suitable for composting. The indices of C/N ratio (basically ranged in 15–20), EC, and NH4 +–N content were measured and showed the KW could be treated by AD. The properties of KW vary with living standard and seasons. The properties of KW sampled in the same season, but closed cleaning station were different with each other and also sampled in the same closed cleaning station but different seasons varied widely. Finally, (Guoxue Li) considering the particular nature of KW, AD was better disposal than composting for treating KW in Chaoyang District.

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