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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >On site experiments the slanted soil treatment systems for domestic gray water
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On site experiments the slanted soil treatment systems for domestic gray water

机译：现场实验家用灰水的倾斜土壤处理系统

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摘要

In order to make a breakthrough for the acute problem of water shortage in the world, the key words "decentralization and reuse" are very important for new sustainable sanitation systems that will be developed. Therefore we focused on a new treatments system called "a slanted soil treatment system" which combines a biotoilet system with a domestic gray water treatment system. Because this system is a low cost and compact system, the system can be easily introduced to homes in urban areas or in the suburbs of cities in many developing countries. In this study, we performed on site experiments done on Shikoku Island of Japan for several years. We obtained following results. The slanted soil treatment system could remove organic pollutants and total nitrogen and total phosphorus in gray water effectively. Furthermore, The system performance became high in case of the high concentration of the influent water. The nitrification reaction and denitrification reaction were speculated to exist due to aerobic zones and anaerobic zones present in the slanted soil treatment system. The slanted soil treatment system could perform for about 3 years with zero maintenance. The plug flow model of 1st order reaction kinetics could describe the reaction in the slanted soil treatment system. However it is necessary to improve the system to maintain the performance at all seasons.
机译：为了在世界上严重的水资源短缺问题上取得突破，“权力下放和再利用”的关键词对于将要开发的新型可持续卫生系统非常重要。因此，我们专注于一种称为“倾斜土壤处理系统”的新处理系统，该系统将生物厕所系统与家用灰水处理系统相结合。因为该系统是低成本且紧凑的系统，所以该系统可以容易地引入许多发展中国家的城市地区或城市郊区的家庭中。在这项研究中，我们对日本四国岛进行了数年的现场实验。我们获得了以下结果。倾斜的土壤处理系统可以有效去除灰水中的有机污染物和总氮，总磷。此外，在进水浓度高的情况下，系统性能也很高。推测硝化反应和反硝化反应的存在是由于倾斜土壤处理系统中存在好氧区和厌氧区。倾斜的土壤处理系统可以在零维护的情况下运行大约3年。一阶反应动力学的塞流模型可以描述倾斜土壤处理系统中的反应。但是，有必要改进系统以保持所有季节的性能。

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