微生物学的処理法による堀の水質浄化過程の観察

概要

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Sediment degradation and change in water quality have been measured during experiment of water purification in a moat by microbiological treatment technique. When soil bacteria and an enzyme were injected into the moat, organic matter and nutrient salts were liberated from the sediment into the water and transformed. Inaddition, a decrease of sediment by 13 cm was observed during the experiment for five months. These results mean that the total environment, including the sediment, was purified. The technique may be useful for purifying environment as well as water quality in a moat from the viewpoint that the artificial injection of the soil bacteria and enzyme degrade sediment in a natural ecological cycle.微生物学的処理法による堀の水質浄化の実験過程におけるヘドロの分解と一連の水質変化を測定した。堀に土壌細菌と酵素を投与すると底質から水中に有機物と栄養塩が遊離し，それらが形態変化した。また，この処理法により5ヶ月間で13cmのヘドロ減少が観測された。これらの結果は底質も含めた堀全体の環境が浄化されたことを意味する。この方法は土壌細菌と酵素を人為的に投与することで自然界の生態系のサイクルの中でヘドロを分解できる点で，水質を含む環境浄化に有効であると考えられる。