Author(s): Li Mengqi, Chen Lüjun, School of Environment, Tsinghua University, Key Laboratory of Water Science and Technology of Zhejiang Province
Pages: 683-688
Year: 2016 Issue:  2
Journal: Chinese Journal of Environmental Engineering
Keyword:  kitchen waste fermentation wastewater; composition analysis; three dimensional fluorescence; GC/MS;
Abstract: Kitchen and fermentation wastewater is generated during the distillation process in alcohol fermentation by using kitchen and food waste. In order to study the composition of it, the conventional water quality index and inorganic salt ions were measured by the national standard methods, and the organic components were detected by using three dimension fluorescence spectrometry technology and solid phase extraction-GC / MS. The results show that kitchen waste fermentation wastewater contents a high level of suspended solid and organic matters,with 1 000 mg / L of SS,60 000 mg / L of COD,700 mg / L of TN,180 mg / L of TP,but it has a good biodegradability. The concentrations of Na+and Cl-are 1 200 mg / L and 2 200 mg / L,respectiuely,which take the main position in the metal cation and inorganic anions in the wastewater. In the wastewater,aromatic protein accounts for about 80% of total organic components and acids and alcohols take the main part of the volatile organic components,which are easily degraded by bacteria and also have the recyclable value.