WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD

• Main Authors: OKUMURA TAKEFUMI, YAMANOI ICHIRO, SANNOMIYA YUTAKA, BABA ATSUSHI, KAGEYAMA KOJI
• Format: Patent
• Language: English; Japanese
• Published: 07.03.2024
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS THEREFOR; CHEMISTRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; METALLURGY; TRAPPING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; WATERING

To provide a water treatment system and a water treatment method that ar capable of utilizing sludge, etc., after sewage treatment, in a manner contributing to suppressing climate change.SOLUTION: A water treatment system is assembled with a water treatment installation 24 which performs treatment including biological treatment using aerobic microorganisms to target water containing nutrient salts to separate into treated water and sludge; a water electrolysis facility 16 which forms hydrogen and oxygen by electrolysis of treated water; and a first feed section 22 which feeds sludge containing nutrient salts to at least a part of seaweeds and algae in the ocean. Oxygen formed in the water electrolysis facility 16 is used in biological treatment in the water treatment installation 24.SELECTED DRAWING: Figure 1 【課題】気候変動抑制に寄与する形態での汚水処理後の汚泥等の有効活用を図ることができる水処理システム及び水処理方法を提供する。【解決手段】栄養塩を含む被処理水に対して好気性微生物を用いた生物処理を含む処理を行って処理水と汚泥とに分離する水処理設備２４と、処理水を電気分解して水素と酸素を生成する水電解設備１６と、栄養塩を含む汚泥を、海洋の海草及び海藻のうちの少なくとも一部に供給する第１供給部２２と、を備える。水電解設備１６で生成した酸素は水処理設備２４における生物処理に供する。【選択図】図１