Abstract：A laboratory study was carried out to obtain data on the influence of external carbon source on biostabilization-biodrying of kitchen waste. Two different external carbon sources (cornstalks and wood peat) were used to bio-dried with kitchen waste. A control treatment was studied using kitchen waste without a external carbon source. The two treatments with external carbon sources reduced the time taken to reach the high temperature, the highest temperature of three treatments could reach above 70℃. After 21d bio-drying, the moisture content decreased 15.25%, 28.0% and 20.3% for the control, adding cornstalks and wood peat treatments, respectively. The organic matter degraded 26.8%, 19.3% and 15.1%, respectively. The moisture content significantly positively correlated with organic matter content. No leachate was produced in the adding cornstalks treatment, whereas leachate was produced at a rate of 0.16 and 0.04kg/kg in the control and adding wood peat treatments, respectively. The water removal per initial raw waste was 0.40, 0.54 and 0.42kg/kg for the control, adding cornstalks and wood peat treatment, respectively. The water loss significantly positively correlated with temperature. The initial low calorific value of kitchen waste was 266kJ/kg, after 21d bio-drying, the moisture content decreased, the low calorific value increased to 1331kJ/kg. The treatments of adding cornstalks and woody peat showed the higher low calorific value, the final low calorific value of bio-drying product were 8400 and 6331kJ/kg.
袁京, 张地方, 李赟, 李国学, 李煜, 王国英. 外加碳源添加对厨余垃圾生物干化效果的影响[J]. 中国环境科学, 2017, 37(2): 628-635.
YUAN Jing, ZHANG Di-fang, LI Yun, LI Guo-xue, LI Yu, WANG Guo-ying. Effect of external carbon sources on biodrying of kitchen waste. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(2): 628-635.
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