基于实地调研的广州市餐厨垃圾处置技术优化研究

Research on Guangzhou Food Waste Disposal Technologies Optimization Based on Field Survey

通过实地调研收集广州市厨余垃圾和餐饮垃圾产生量、分类及处置方式,采用层次分析法优化餐厨垃圾处置技术。结果表明,广州市主要城区已开展餐厨垃圾分类工作,由具有资质的单位进行收运,初步形成较完善的收运体系。6种餐厨垃圾处置方式按得分排序依次为:厌氧发酵技术、生物柴油、好氧堆肥、饲料化、黑水虻、生化机。其中厌氧发酵为最优餐厨垃圾处理方式,其次是生物柴油和好氧堆肥。研究结果为政府优化决策提供参考,同时为企业实现餐厨垃圾资源化、减量化、无害化处理提供技术参考。

Food waste production,classification and disposal methods in Guangzhou were collected by field research.And analytic hierarchy process was used to optimize the disposal technology of food waste.The results showed that the main urban areas of Guangzhou have carried out the sorting of food waste,by the qualified units for collection and transportation,and a more perfect collection and transportation system have been initially formed.Six kinds of disposal methods of food waste were in order as follows:anaerobic fermentation technology,biodiesel,aerobic composting,feed conversion,black soldier fly larvae and biochemical machine,which were sorted by score.Among them,anaerobic fermentation is the best disposal method of food waste,followed by biodiesel and aerobic composting.The references for the government to optimize the decision-making and the technical references for enterprises to realize the recycling,reduction and harmless treatment of food waste were provided by the research results.