PROBLEM TO BE SOLVED: To solve such a problem that a method for positively using organic substances drained from a factory for producing electric parts has little been discussed, although it has been discussed to degrade and release the organic substances with microorganisms.SOLUTION: Organic substances in a waste fluid are used as a feed to culture phytoplankton, and a fish bank is disposed in a sea close to a factory. The cultured phytoplankton is released in the fish bank. Thus, the waste fluid is used for growing marine resources. More specifically, a waste fluid treatment system is characterized by comprising a culture tank disposed in a factory to store culture water and phytoplankton, a mixing means for mixing an organic substances-containing waste water from the factory with the culture fluid to prepare a mixed waste fluid, a supply means for supplying the mixture waste fluid to the culture tank, a measurement means for counting the number of the phytoplankton in the culture tank, a carrying means for carrying the content of the culture tank to a place of natural water having the same salt degree as that of the culture fluid, and a fish bank containing a fish bank structure having at least one release port for releasing the content into sea.【課題】電子部品の製造工場などから排出される有機物は、従来微生物によって分解し放出することが検討されてきたが、より積極的に利用する方法はほとんど検討されていなかった。【解決手段】廃液となる有機物を餌として、植物性プランクトンを養殖し、工場近海の海中に魚礁を設け、魚礁で植物性プランクトンを放出することで、廃液を海洋資源の育成に利用する。より具体的には、工場内に設置され、養殖水とプランクトンが蓄えられた養殖槽と、前記工場からの有機物が含まれた廃液と前記養殖水を混合し、混合廃液を調整する混合手段と、前記混合廃液を前記養殖槽に供給する供給手段と、前記養殖槽中の前記プランクトンの数を計測する計測手段と、前記養殖槽の内容物を前記養殖水と同じ塩度の自然水の場所まで運搬する運搬手段と、前記内容物を海中に放出する放出口を少なくとも１つ有する魚礁構築物を含む魚礁を含むことを特徴とする廃液処理システム。【選択図】図１
