JP2011167656A - 無機物質懸濁廃水の処理方法 - Google Patents
無機物質懸濁廃水の処理方法 Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 42
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- 125000002091 cationic group Chemical group 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 238000011085 pressure filtration Methods 0.000 claims abstract description 8
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 239000011780 sodium chloride Substances 0.000 claims abstract description 4
- 239000000701 coagulant Substances 0.000 claims description 39
- 238000005345 coagulation Methods 0.000 claims description 13
- 230000015271 coagulation Effects 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 8
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- 229920006318 anionic polymer Polymers 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 4
- 150000003242 quaternary ammonium salts Chemical group 0.000 claims description 4
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 claims description 3
- 241000694440 Colpidium aqueous Species 0.000 claims description 3
- -1 dimethylaminoethyl Chemical group 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 3
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000002244 precipitate Substances 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000010802 sludge Substances 0.000 abstract description 8
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 244000144992 flock Species 0.000 abstract 1
- 239000010812 mixed waste Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical class NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000006228 supernatant Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000004220 aggregation Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 150000001502 aryl halides Chemical class 0.000 description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- YIOJGTBNHQAVBO-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)azanium Chemical class C=CC[N+](C)(C)CC=C YIOJGTBNHQAVBO-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- FWFUWXVFYKCSQA-UHFFFAOYSA-M sodium;2-methyl-2-(prop-2-enoylamino)propane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(C)(C)NC(=O)C=C FWFUWXVFYKCSQA-UHFFFAOYSA-M 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- BHDFTVNXJDZMQK-UHFFFAOYSA-N chloromethane;2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound ClC.CN(C)CCOC(=O)C(C)=C BHDFTVNXJDZMQK-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- UROYYJZSTVLYKU-UHFFFAOYSA-N hydrazine;prop-2-enoic acid Chemical compound [NH3+]N.[O-]C(=O)C=C UROYYJZSTVLYKU-UHFFFAOYSA-N 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
【解決手段】無機物質が懸濁した濁廃水にカチオン性有機凝結剤を添加混合して凝集沈澱処理を行い、次いで、固液分離して得た凝集沈殿物を加圧濾過して脱水を行うに際し、以下に定義される10質量%塩粘度が10〜3000mPa・sであるカチオン性有機凝結剤を使用し、且つ、その添加量として以下の計算式(1)で求められる添加量を採用する。
[塩粘度]
脱イオン水450.0gに有機凝結剤50.0gを溶解し、更に食塩20gを溶解した25℃の水溶液のB型粘度計で測定した粘度。
[数1]
0.008×SS×Dma-2.5≦有機凝結剤添加量[mg/l]≦0.012×SS×Dma-1.7・・・(1)
(但し、SSは濁廃水中の懸濁浮遊粒子量(mg/l)、Dmaは浮遊粒子の面積平均粒子径(μm)を表す。)
【選択図】なし
Description
[塩粘度]
脱イオン水450.0gに有機凝結剤50.0gを溶解し、更に食塩20gを溶解した25℃の水溶液のB型粘度計で測定した粘度。
[数1]
0.008×SS×Dma-2.5≦有機凝結剤添加量[mg/l]≦0.012×SS×Dma-1.7・・・(1)
(但し、SSは濁廃水中の懸濁浮遊粒子量(mg/l)、Dmaは浮遊粒子の面積平均粒子径(μm)を表す。)
0.008×SS×Dma-2.5≦有機凝結剤添加量[mg/l]≦0.012×SS×Dma-1.7・・・(1)
(但し、SSは濁廃水中の懸濁浮遊粒子量(mg/l)、Dmaは浮遊粒子の面積平均粒子径(μm)を表す。)
本発明で使用した無機凝結剤及び有機凝結剤を表1に示す。
貯水槽で粗粒土が自然沈降により除去・分離された濁廃水500mlを500mlのビーカーに採取した。これに、所定量の凝結剤を加えた後にジャーテスターにて150rpm、30秒間攪拌する。その後にアニオン性凝集剤(ダイヤニトリックス社製「AP825C」)を3ppm加えてフロックを形成させ、フロック径を計測した。アニオン性凝集剤を加えた後、60秒間の攪拌時間が経過したら攪拌を停止し、その3分後に凝集沈澱した高さ(以降、沈降SVと称する)を測定した。また、処理液の上澄みの濁りを目視にて観察した。
貯水槽で粗粒土が自然沈降により除去・分離された濁廃水(表2)を反応槽に送り、この反応槽で所定量の凝結剤とアニオン系高分子凝集剤(ダイヤニトリックス社製「AP825C」)を6ppm加えてフロックを形成させ、沈殿槽へ送液した。沈殿槽での透視度を測定した。
Claims (5)
- 無機物質が懸濁した濁廃水に1種又は2種以上のカチオン性有機凝結剤を添加混合して凝集沈澱処理を行い、次いで、上澄水と凝集沈殿物に固液分離して得た凝集沈殿物を加圧濾過して脱水を行う無機物質懸濁廃水の処理方法において、カチオン性有機凝結剤として以下に定義される10質量%塩粘度が10〜3000mPa・sであるカチオン性有機凝結剤を使用し、且つ、その添加量として以下の計算式(1)で求められる添加量を採用することを特徴とする無機物質懸濁廃水の処理方法。
[塩粘度]
脱イオン水450.0gに有機凝結剤50.0gを溶解し、更に食塩20gを溶解した25℃の水溶液のB型粘度計で測定した粘度。
[数1]
0.008×SS×Dma-2.5≦有機凝結剤添加量[mg/l]≦0.012×SS×Dma-1.7・・・(1)
(但し、SSは濁廃水中の懸濁浮遊粒子量(mg/l)、Dmaは浮遊粒子の面積平均粒子径(μm)を表す。) - カチオン性有機凝結剤としてジアルキルアミノアルキル(メタ)アクリレートモノマーを97〜100質量%含有する重合体を使用する請求項1に記載の処理方法。
- ジアルキルアミノアルキル(メタ)アクリレート単量体がジメチルアミノエチル(メタ)アクリレートの四級アンモニウム塩である請求項2に記載の処理方法。
- カチオン性有機凝結剤がポリジメチルアミノエチル(メタ)アクリレートの四級アンモニウム塩と2−メチル−2−プロペン−1−スルホン酸及びその塩の共重合体である請求項2又は3に記載の処理方法。
- 濁廃水にカチオン性有機凝結剤を添加した後にアニオン性高分子凝集剤を添加する請求項1〜4の何れかに記載の処理方法。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013066871A (ja) * | 2011-09-26 | 2013-04-18 | Shin-Etsu Chemical Co Ltd | 固体微粒子回収方法 |
CN103466838A (zh) * | 2013-09-23 | 2013-12-25 | 杭州天创环境科技股份有限公司 | 一种含二甲基甲酰胺废水精馏塔凝水的处理方法 |
JP2014028353A (ja) * | 2012-06-25 | 2014-02-13 | Konoike Constr Ltd | 濁水の処理方法 |
JP2017047358A (ja) * | 2015-09-01 | 2017-03-09 | 株式会社大林組 | ベントナイト系安定液の廃液処理方法、及び、それに用いられる有機凝集剤 |
CN113336406A (zh) * | 2021-06-03 | 2021-09-03 | 中铁海峡(厦门)环保技术有限公司 | 一种建筑施工用泥浆过滤处理工艺 |
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JPS5237580A (en) * | 1975-09-22 | 1977-03-23 | Nitto Chem Ind Co Ltd | Flocculating method |
JPS5315277A (en) * | 1976-07-28 | 1978-02-10 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | Applying method for polymer flocculating-dehydrating agent |
JP2000325966A (ja) * | 1999-05-24 | 2000-11-28 | Toagosei Co Ltd | 泥水の脱水処理方法 |
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JP2011050889A (ja) * | 2009-09-03 | 2011-03-17 | Daiyanitorikkusu Kk | 両性有機凝結剤および廃水処理方法 |
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2010
- 2010-02-22 JP JP2010035713A patent/JP5589430B2/ja active Active
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JPS5237580A (en) * | 1975-09-22 | 1977-03-23 | Nitto Chem Ind Co Ltd | Flocculating method |
JPS5315277A (en) * | 1976-07-28 | 1978-02-10 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | Applying method for polymer flocculating-dehydrating agent |
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JP2010155956A (ja) * | 2009-01-05 | 2010-07-15 | Daiyanitorikkusu Kk | スルホン酸基含有両性水溶性高分子水溶液およびその製造方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013066871A (ja) * | 2011-09-26 | 2013-04-18 | Shin-Etsu Chemical Co Ltd | 固体微粒子回収方法 |
JP2014028353A (ja) * | 2012-06-25 | 2014-02-13 | Konoike Constr Ltd | 濁水の処理方法 |
CN103466838A (zh) * | 2013-09-23 | 2013-12-25 | 杭州天创环境科技股份有限公司 | 一种含二甲基甲酰胺废水精馏塔凝水的处理方法 |
JP2017047358A (ja) * | 2015-09-01 | 2017-03-09 | 株式会社大林組 | ベントナイト系安定液の廃液処理方法、及び、それに用いられる有機凝集剤 |
CN113336406A (zh) * | 2021-06-03 | 2021-09-03 | 中铁海峡(厦门)环保技术有限公司 | 一种建筑施工用泥浆过滤处理工艺 |
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