地下帯水層蓄熱法の基礎研究 : 鉄バクテリアの観察とバイオフィルタ効果

概要

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A new purification method for a water supply system utilizing an aquifer was proposed, i.e., artificial groundwater charging through a biofilter such as a ferric-colloid and microorganism layer. The main objective of this paper is the observation and investigation of filter effects for iron bacteria and light synthetic microorganisms. Experimental investigation led to the following : (1) the iron bacteria which acts as a catalyst in the formation of the ferric-colloidal substance in the aquifer is gallionella, whose stalk works as a kernel of a chemical reaction, (2) The filter effect through the ferric colloid was nearly 100% when the permeability of the filter decreased to less than 10% of the initial one, making use of carbon ink of particle size less than 0.1 micron in diameter, (3) The purifying effect of organic matter due to biofilter reactions such as ulothrix aequalis, navicula falaisiensis and formidium fenue was confirmed on the basis of decreasing COD value under lighting by halogen lamp, (4) A new numerical simulation modeling for the purifying effect of the biofilter was proposed, and was confirmed by experiment.
一般社団法人日本機械学会の論文
1992-12-25