上海餐厨有机废弃物成分分析和资源化利用初探

Research of Components Analysis and Resource Utilization of Kitchen Organic Waste in Shanghai

为摸索适合上海市湿垃圾中餐厨有机废弃物资源化利用途径,历时两年跟踪30个批次餐厨有机废弃物物料情况,分析其原料组分和成分,跟踪研究其堆肥后制品。研究结果表明,餐厨有机废弃物杂质率较高,但废弃物原料的养分含量较高,以氮为主,盐分(Na^+)和粗脂肪含量较高;分析其中12个批次餐厨有机废弃物制品,发现餐厨有机废弃物高温生化制品经脱油脱盐后,其养分含量较低,钠离子和粗脂肪高于普通有机肥,发芽指数较低;指出对餐厨有机废弃物资源化的利用必须克服其油盐障碍因子,最后强调严格分拣并分类使用的重要意义。

Over the past two years,30 batches of kitchen organic waste materials have been tracked to nd out how to use it ef ciently in Shanghai.The components of the raw materials were analyzed;meanwhile,scholars conducted a composition study on kitchen waste.The results show that the impurity rate of organic kitchen waste is high.Mainly nitrogen contained in the raw materials of organic kitchen wasted.And also,Salt content(Na+)and crude fat content were high in the organic kitchen waste.12 batches of kitchen organic waste products were analyzed.After deoiling and desalting of high-temperature biochemical products of kitchen organic waste the nutrient became lower than the raw materials.The salt content(Na+)and crude fat content of these products were higher than standard organic fertilizer,and the germination index(GI)was lower.If the oil and salt barrier factor should be overcome by strictly sorted and classi ed,the kitchen organic waste can realize resource utilization.