南方城市餐饮业垃圾特性调查及处理对策分析 |
摘要点击 2816 全文点击 2197 投稿时间:2010-08-21 修订日期:2010-12-13 |
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中文关键词 餐饮业垃圾 特性指标 单独收集 两相厌氧发酵法 |
英文关键词 catering waste characteristic indicators separated collection two-phase anaerobic digestion |
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中文摘要 |
针对目前南方餐饮业垃圾产生量大、污染严重、缺乏合理处理处置技术的现状,选择杭州作为南方城市的典型代表,研究了三类餐饮业垃圾(中餐饭馆、中餐食堂和西餐餐饮点)四季的成分变化特征,探讨了各特性指标对处理处置技术的影响,并根据指标特性对餐饮业垃圾的各种处理处置方法进行了评价.结果表明,南方城市餐饮业垃圾含水率可达60%以上,VS/TS均超87%,pH为4.64~6.98,呈酸性或弱酸性;有机成分高,脂肪、蛋白质和碳水化合物含量分别为16.98%~38.92%、6.58%~11.65%和46.27%~68.28%, 可生物降解性好;盐分含量为0.69%~2.44%,总P含量为0.13%~0.30%,可成为生物限制的瓶颈.根据垃圾特性,认为单独收集-两相厌氧发酵处理为南方城市餐饮业垃圾较佳的处理处置方式. |
英文摘要 |
To find out a suitable way for catering food waste treatment, the waste characteristics from Chinese restaurant, Chinese canteen and western-style canteen in 4 seasons have been investigated. The results showed the average moisture content of the food waste was more than 60%, with more than 87% of VS/TS and the pH range of 4.64-6.98.The contents of organic components were high, the contents of fat and protein and carbohydrate were 16.98%-38.92%, 6.58%-11.65% and 46.27%-68.28%, respectively. It implied the food waste could be easily bio-degraded. The salt content was 0.69%-2.44%, with total P content of 0.13%-0.30%. It suggested high content of salt could limit the efficiency of bio-degradation. Based on all above characteristics, separated collection and two-phase anaerobic digestion were considered to be a suitable ways for catering food waste treatment. |