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.
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.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2011年第7期2164-2168,共5页
Environmental Science
基金
浙江省重大科技专项(2009C13002)
浙江省研究生创新科研项目(YK2008065)
浙江省高等学校创新团队支持计划项目(T200912)
浙江工商大学校级科研项目(X11-06)
关键词
餐饮业垃圾
特性指标
单独收集
两相厌氧发酵法
catering waste
characteristic indicators
separated collection
two-phase anaerobic digestion
