地下帯水層流動蓄熱法の基礎研究 : 帯水層バイオフィルタの野外検証

抄録

River water can be changed to useful energy and waterresouces, in spite of the danger of groundwater pollution, by utilizing the aquifer thermal energy storage method. A new purification method for the water supply system, utilizing an aquifer was proposed, i.e.. artificial groundwater recharge through a biofilter, for example, ferriccolloid and photosynthesizing microorganism layer, and named the aquifer biofilter method. The main objective of this paper is to investigate filter effects on the aquifer biofilter in the field. Experimental investigation led to the following results: (1) the purifying effect of organic materials by the aquifer biofilter was confirmed on the basis of a reduced COD value; (2) a numerical simulation model of the purifying effect of the aquifer biofilter was validated by field experiments.