WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT DEVICE

PROBLEM TO BE SOLVED: To provide a wastewater treatment method capable of reducing turbidity of a treated water, while limiting an amount of chemicals used for agglomeration of coal fine particles.SOLUTION: There is provided a wastewater treatment method, including: mixing wastewater containing coal...

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Bibliographische Detailangaben
1. Verfasser:	SHIMAMURA YUJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a wastewater treatment method capable of reducing turbidity of a treated water, while limiting an amount of chemicals used for agglomeration of coal fine particles.SOLUTION: There is provided a wastewater treatment method, including: mixing wastewater containing coal fine particles and an organic coagulant having a cationic colloid equivalent value of 6.0 meq/g or more in a reaction tank 14; and performing coagulation treatment.SELECTED DRAWING: Figure 1 【課題】石炭微粒子の凝集処理に使用する薬品の使用量を抑えながら、処理水の濁度を低減することができる排水処理方法を提供する。【解決手段】反応槽１４において、石炭微粒子を含有する排水と、カチオンコロイド当量値が６．０ｍｅｑ／ｇ以上である有機凝結剤とを混合し、凝集処理を行う排水処理方法である。【選択図】図１