农业环境科学学报Issue(7)：1371-1377,7.DOI:10.11654/jaes.2015.07.020
通风量对厨余垃圾堆肥过程中H2S和NH3排放的影响
Influence of Ventilation on H2S and NH3 Emissions During Kitchen Waste Compositing
摘要
Abstract
Waste composting has been considered as a safe and efficient measure to dispose kitchen waste in recent years. Kitchen waste composting would produce a great quantity of H2S and NH3. To reduce emissions of H2S and NH3, a composting experiment was carried out with kitchen waste and corn stalk as materials under aerobic conditions to investigate H2S and NH3 emissions from kitchen waste under dif-ferent ventilation rates marked T1, T2, T3 and T4(0.5,1.0,2.2 and 3.2 m3·m-3 material·h-1). Temperature, O2, H2S, NH3, GI, EC, TOC, and TN were monitored during composting. During 30 days of composting, cumulative emissions of H2S in T1, T2, T3 and T4 were respectively 103.17, 54.10, 35.58 and 44.38 mg·kg-1 DM. Compared with T1, H2S emissions were reduced by 47.6%, 65.5%and 57.0%for T2, T3, and T4, respectively. Cumulative emissions of NH3 during 30 days were 14.79、406.50、1475.63 and 2274.35 mg·kg-1 DM for T1, T2, T3 and T4, respectively. These findings show that H2S emissions decrease with increasing ventilation within a certain range. The emissions of NH3 in-crease with ventilation rates. Taking into comprehensive consideration of non-hazard index, H2S and NH3 emissions, and compost toxicity test, it is recommended that an optimized method for composting kitchen waste would be 85:15 of kitchen waste to stalk ratio and 2.2 m3·m-3 material·h-1 of ventilation rate.关键词
厨余垃圾/堆肥/通风量/硫化氢/氨气Key words
kitchen waste/composting/ventilation/hydrogen sulfide/ammonia分类
资源环境引用本文复制引用
张玉冬,张红玉,顾军,王继红..通风量对厨余垃圾堆肥过程中H2S和NH3排放的影响[J].农业环境科学学报,2015,(7):1371-1377,7.基金项目
北京市自然科学基金资助项目（8144050）；国家科技支撑计划（2012BAC15B04）；吉林省科技厅项目 （）
