An integrated approach to minimise organicpollution in Danang, Vietnam

实施低成本的系统，以消除土壤中的二恶英，这是一个后果，越南战争在20世纪60年代至70年代，是非常希望在岘港的安全城市发展。为此，提出了利用有机废弃物进行沼气发酵，为二恶英污染土壤的热分解提供热能的方法。在实验室规模开发新工艺的同时，通过实地调查澄清了岘港城市固体废物（包括餐厨垃圾）的物质流。看来，大量的食物垃圾目前正在有益地转移到岘港以外的养猪场，因此，不可喂养的部分（例如化粪池污泥）被认为是甲烷发酵过程的重要有机来源，不像其他发达国家。现场研究还发现，除了二恶英的热点，化合物的存在在岘港河是有限的，大多数微污染物主要归因于该地区的农场杀虫剂。

An implementation of low-cost system toremove Dioxins in soil, which is a consequence of Vietnam war in 1960s-1970s is highly desired in Danang for its safe urban development. In this regard, a development of improved methane fermentation process receiving organic wastes was highlighted toprovide heat energy for the thermal decomposition of dioxin-polluted soil. While developing the new process in lab-scale, the material flow of municipal solid wastes in Danang including food waste was clarified through field survey. It appeared that a large amount of the food waste was currently being beneficially transferred to piggery farms outside Danang, and accordingly non-feedable fraction (e.g. septic tank sludge) wasthought to be the essential organic source for the methane fermentation process, unlikeother developed countries. The field research also reveled apart from the hot-spots of Dioxins, the presence of the compounds in Danang river was limited and most of micropollutants were mainly attributed to insecticides from farms in the area.