JP2014108394A5 - - Google Patents

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JP2014108394A5
JP2014108394A5 JP2012264357A JP2012264357A JP2014108394A5 JP 2014108394 A5 JP2014108394 A5 JP 2014108394A5 JP 2012264357 A JP2012264357 A JP 2012264357A JP 2012264357 A JP2012264357 A JP 2012264357A JP 2014108394 A5 JP2014108394 A5 JP 2014108394A5
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polymer flocculant
suspended solids
million
particle size
suspended
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JP2012264357A
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JP2014108394A (en
JP6068112B2 (en
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Claims (4)

粗大な懸濁物質と微細な懸濁物質とが共存している状態の廃水から、これらの懸濁物質を同一の処理によって取り除く際に使用される高分子凝集剤であって、
前記粗大な懸濁物質が少なくとも粒径が５０μｍ以上のものであり、前記微細な懸濁物質が粒径が５０μｍに満たないものであり、且つ、
下記一般式（１）及び（２）を必須成分としてそれぞれ５モル％以上を含む原料モノマーから誘導されるカチオン性又は両性の共重合体を主成分としてなり、該共重合体の重量平均分子量が２００万〜１，３００万であり、且つ、ｐＨ７におけるカチオンコロイド当量値が０．４ｍｅｑ／ｇ以上であることを特徴とする高分子凝集剤。
Figure 2014108394
（上記式中の、Ｒ1、Ｒ2は、ＣＨ3又はＣ2Ｈ5を、Ｒ3は、Ｈ、ＣＨ3又はＣ2Ｈ5を表す。Ｘ-は、アニオン性対イオンを表す。） A polymer flocculant used when removing these suspended solids by the same treatment from wastewater in the presence of coarse suspended solids and fine suspended solids,
The coarse suspended material has a particle size of at least 50 μm, the fine suspended material has a particle size of less than 50 μm, and
The following general formulas (1) and (2) are essential components and a cationic or amphoteric copolymer derived from a raw material monomer each containing 5 mol% or more is a main component, and the weight average molecular weight of the copolymer is A polymer flocculant having a cation colloid equivalent value of 2 to 13 million and a pH of 7 is 0.4 meq / g or more.
Figure 2014108394
(In the above formula, R 1 and R 2 represent CH 3 or C 2 H 5 , R 3 represents H, CH 3 or C 2 H 5. X − represents an anionic counter ion.) 前記重量平均分子量が２００万〜５００万であり、且つ、ｐＨ７におけるカチオンコロイド当量値が０．４〜４．８ｍｅｑ／ｇである請求項１に記載の高分子凝集剤。   The polymer flocculant according to claim 1, wherein the weight average molecular weight is 2 million to 5 million and the cation colloid equivalent value at pH 7 is 0.4 to 4.8 meq / g. 前記粗大な懸濁物質が、少なくとも粒径が５０μｍ以上の金属粉、石炭・コークス粉又は油分のいずれかを含む請求項１又は２に記載の高分子凝集剤。 The coarse suspended solids, high molecular flocculant as claimed in claim 1 or 2 comprising at least a particle size 50μm or more metal powders, one of the coal and coke powder or oil. 前記懸濁物質を同一の処理によって取り除く際における処理廃水に対する添加量が、０．５ｍｇ／Ｌ以上である請求項１〜３のいずれか１項に記載の高分子凝集剤。   The polymer flocculant according to any one of claims 1 to 3, wherein an addition amount to the treatment wastewater when the suspended substance is removed by the same treatment is 0.5 mg / L or more.
JP2012264357A 2012-12-03 2012-12-03 Aggregation / sedimentation agent for suspended matter and method for removing suspended matter from wastewater using the same Active JP6068112B2 (en)

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JP2012264357A JP6068112B2 (en) 2012-12-03 2012-12-03 Aggregation / sedimentation agent for suspended matter and method for removing suspended matter from wastewater using the same

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JP2012264357A JP6068112B2 (en) 2012-12-03 2012-12-03 Aggregation / sedimentation agent for suspended matter and method for removing suspended matter from wastewater using the same

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JP2014108394A JP2014108394A (en) 2014-06-12
JP2014108394A5 true JP2014108394A5 (en) 2016-01-14
JP6068112B2 JP6068112B2 (en) 2017-01-25

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Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
WO2014091819A1 (en) * 2012-12-10 2014-06-19 日鉄住金環境株式会社 Method for removing suspended solids from wastewater
JP6387337B2 (en) * 2015-12-07 2018-09-05 日鉄住金環境株式会社 Method for removing suspended matter in water using a flocculating / flocculating material for cross-linked suspension material, and flocculating / flocculating agent for suspended material for suspension material removal treatment
JP6839619B2 (en) * 2017-06-14 2021-03-10 日鉄環境株式会社 Manufacturing method of granulated slag
JP7109970B2 (en) * 2018-04-05 2022-08-01 日本製鉄株式会社 Coagulating sedimentation device and coagulating sedimentation method
WO2019213868A1 (en) * 2018-05-09 2019-11-14 江南大学 Multi-copolymer, preparation method therefor and application thereof in wastewater treatment
CN108559020B (en) * 2018-05-09 2019-05-03 江南大学 A kind of multiple copolymer, preparation method and its application in the treatment of waste water
JP7468847B2 (en) * 2020-09-24 2024-04-16 株式会社片山化学工業研究所 Wastewater Treatment Methods
JP7468849B2 (en) * 2021-05-20 2024-04-16 株式会社片山化学工業研究所 Wastewater Treatment Methods

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JPH0771678B2 (en) * 1986-05-09 1995-08-02 ハイモ株式会社 Sludge dehydrator
JPH01104389A (en) * 1987-10-17 1989-04-21 Nippon Steel Corp Discharged water treatment for iron and steel manufacture
KR100216494B1 (en) * 1993-03-01 1999-08-16 로날드 제이. 알레인, 지이 엠 브랜논, 더블유 이 패리 Recovery of oil from waste oil fluid
JP3110992B2 (en) * 1995-09-14 2000-11-20 ハイモ株式会社 Valuables recovery agent for white water
JP2008006382A (en) * 2006-06-29 2008-01-17 Nalco Japan Kk Method of treating oil-containing waste water

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