抄録
Decentralized water treatment and supply system with membrane technology has been rapidly spread in Japan, especially in groundwater purification by private sector. It is called “Groundwater Membrane Filtration System”, and the system includes all the components to manage water treatment and supply like public waterworks from water source to water tap. In addition, purified groundwater (treated water) has qualified water level to meet Japanese legal quality standard as drinking water, and treated water is blended with municipal water at user's storage tank. This combined water supply system is quite effective to prevent lack of drinking water in case of disaster, so that the groundwater membrane filtration system has attracted attention as one of the countermeasures for disaster. This paper describes the features of Wellthy's groundwater membrane filtration system, introducing the actual situation of installed system in the Great East Japan Earthquake.
