FLOCCULANT FOR TURBID WATER TREATMENT

• Main Authors: AKASAKA SHINGO, OBANA SEIICHI, TAKAYA HIDEKI, SAKURAI YASUTOMO, FUKUMITSU KUNIO
• Format: Patent
• Language: English; Japanese
• Published: 12.02.2021
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a flocculant for turbid water treatment which reduces labor of turbid water treatment work and, while keeping generated treated water and floc at a neutral pH, facilitates dewatering of the floc to thereby contribute to development of sludge strength.SOLUTION: A flocculant for turbid water treatment comprises a formulation of: two or more types of synthetic polymer flocculants from anionic ones; one or more types of natural polymer flocculants; two or more types of calcium compounds from among alkaline earth metals; two or more types of aluminum compounds; one or more types of magnesium oxides or carbonates from alkaline earth metals as a pH adjusting agent; and a powder of a porous substance.SELECTED DRAWING: None 【課題】濁水処理作業の省力化及び発生する処理水やフロックをｐＨ中性に保ちながら、フロックからの脱水を促進し、スラッジの強度発現に寄与する濁水処理用凝集剤を提供すること。【解決手段】合成高分子凝集剤をアニオン系から２種以上配合し、天然高分子凝集剤１種以上配合し、アルカリ土類金属の中からカルシウム系化合物を２種以上配合し、アルミニウム化合物を２種以上配合し、ｐＨ調整剤としてアルカリ土類金属から酸化マグネシウム又は炭酸塩を１種以上配合し、多孔質物質の粉末を配合してなる。【選択図】なし