辅料添加对厨余垃圾快速堆肥腐熟度和臭气排放的影响

发布时间：2018-06-20 09:40

本文选题：好氧堆肥 + 厨余垃圾　；参考：《中国环境科学》2017年03期

【摘要】：为提高厨余垃圾快速堆肥腐熟度并减少处理过程中臭气(NH_3和H_2S)的排放,以玉米秸秆、稻壳、锯末和菌糠作为辅料,基于湿基质量的15%分别添加到厨余垃圾中进行堆肥试验,并以纯厨余垃圾堆肥作为对照,研究了不同辅料添加对厨余垃圾堆肥腐熟度及NH_3和H_2S排放的影响.结果表明:除纯厨余垃圾处理以外,其他处理都达到了腐熟堆肥的要求,其中添加菌糠的处理腐熟效果最好,发芽率指数(GI)相比对照大幅提高;添加辅料对NH_3和H_2S的减排效果明显,其中,菌糠添加对NH_3的减排效果最好,相比对照可减排53.6%,锯末对H_2S的减排效果最佳,相比对照可减排84.08%;厨余垃圾堆肥时添加辅料有利于氮素和硫素的固定,其中添加辅料菌糠的固氮效果最好,总氮损失仅占初始总氮的8.7%;添加玉米秸秆总硫损失最少,仅占初始总硫的2.05%.
[Abstract]:In order to improve the composting maturity and reduce the discharge of stink ammonia and H2S during the treatment, corn straw, rice husk, sawdust and fungus chaff were used as auxiliary materials, and 15% of the wet base mass was added to the kitchen waste respectively to carry out composting test. The effects of different auxiliary materials on the composting maturity, NH3 and H2S emissions of kitchen waste compost were studied by using pure kitchen waste compost as control. The results showed that, except for the pure kitchen waste treatment, the other treatments met the requirements of composting, and the treatment with the addition of fungus chaff had the best ripening effect, and the germination rate index (Gi) was significantly higher than that of the control. The effect of adding auxiliary materials on the emission reduction of NH _ 3 and H _ 2S was obvious, among which, the effect of bacteria chaff on NH _ 3 emission reduction was the best. Compared with the control, the effect of sawdust on H2S emission reduction was the best. Compared with the control, 84.08 can be reduced. When composting kitchen waste, the addition of auxiliary materials is beneficial to the fixation of nitrogen and sulfur, among which, the nitrogen fixation effect is the best, the total nitrogen loss is only 8.7% of the initial total nitrogen, and the total sulfur loss of corn straw is the least. Only 2.05% of the initial total sulfur.
【作者单位】：中国农业大学资源与环境学院;贵州省土壤肥料研究所;
【基金】：“固废资源化利用与节能建材国家重点实验室”开放基金资助(SWR-2014-005) 国家重点研发计划(2016YFD0800601)
【分类号】：X799;S141.4

【相似文献】