JP3896101B2 - 洗車排水処理装置 - Google Patents
洗車排水処理装置 Download PDFInfo
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- JP3896101B2 JP3896101B2 JP2003273401A JP2003273401A JP3896101B2 JP 3896101 B2 JP3896101 B2 JP 3896101B2 JP 2003273401 A JP2003273401 A JP 2003273401A JP 2003273401 A JP2003273401 A JP 2003273401A JP 3896101 B2 JP3896101 B2 JP 3896101B2
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- car wash
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- 238000004065 wastewater treatment Methods 0.000 title claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 70
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 66
- 239000012528 membrane Substances 0.000 claims description 61
- 238000004062 sedimentation Methods 0.000 claims description 46
- 238000000926 separation method Methods 0.000 claims description 37
- 238000005345 coagulation Methods 0.000 claims description 31
- 230000015271 coagulation Effects 0.000 claims description 31
- 239000002351 wastewater Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 description 19
- 239000008394 flocculating agent Substances 0.000 description 15
- 238000009434 installation Methods 0.000 description 15
- 238000003860 storage Methods 0.000 description 14
- 238000001914 filtration Methods 0.000 description 13
- 238000005406 washing Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- 238000009295 crossflow filtration Methods 0.000 description 8
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 229910052901 montmorillonite Inorganic materials 0.000 description 8
- 229920006317 cationic polymer Polymers 0.000 description 7
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
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- 229940005550 sodium alginate Drugs 0.000 description 6
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 5
- 229940072056 alginate Drugs 0.000 description 5
- 235000010443 alginic acid Nutrition 0.000 description 5
- 229920000615 alginic acid Polymers 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 5
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- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 4
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- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
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- 229920006319 cationized starch Polymers 0.000 description 2
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
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- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
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- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/44—Nature of the water, waste water, sewage or sludge to be treated from vehicle washing facilities
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Description
装置全体の平面面積が1〜5m2、最大高さが1.5〜2.5mであり、装置全体の平面面積に占める各部の平面面積の割合が、凝集沈殿処理部が25〜55%、膜処理部が2〜10%、活性炭処理部が1〜10%であり、下記式から求められるCOD除去率が30%以上である洗車排水処理装置を提供する。
また本発明は、課題の他の解決手段として、凝集剤を用いた凝集沈殿処理部、膜処理部及び活性炭処理部を少なくとも有する洗車排水処理装置であり、
装置全体の平面面積が1〜5m2、最大高さが1.5〜2.5mであり、装置全体の平面面積に占める各部の平面面積の割合が、凝集沈殿処理部が25〜55%、膜処理部が2〜10%、活性炭処理部が1〜10%であり、下記式から求められる装置単位体積当たりの処理速度が0.25〜0.65(1/hr)である洗車排水処理装置を提供する。
本発明の洗車排水処理装置は、凝集沈殿処理部、膜処理部及び活性炭処理部のみから構成されていてもよい。なお、装置全体の平面面積に占める凝集沈殿処理部、膜処理部及び活性炭処理部の平面面積の合計割合は100%にはならないが、これは洗車排水処理装置には、前記各処理部以外にも各処理部を連絡するパイプ等の連結手段を含む付属要素が必要だからである。なお、本発明におけるCODは、実施例に記載の方法により測定されるものである。
また本発明では、下記式から求められる装置単位体積当たりの処理速度が、0.25〜0.65(1/hr)、好ましくは0.3〜0.60(1/hr)、より好ましくは0.4〜0.55(1/hr)である。
本発明の洗車排水処理装置は、上記のとおり、装置全体の平面面積と装置の最大高さを所定範囲にすることで、限られた設置スペース(設置面積及び設置容積)に設置することができるようになり、更に各処理部の平面の占有面積を所定範囲にすることで、製造コストや運転コストを抑制した上で、高い水処理効果〔COD除去率30%以上、装置単位体積当たりの処理速度が、0.25〜0.65(1/hr)〕を得ることができる。
洗車排水処理装置として、表1に示すものを用いた。凝集沈殿処理部2で使用する凝集剤として、モンモリロナイト、硫酸アルミニウム、アルギン酸ナトリウム、カチオン系ポリアクリルアミド(質量比48/48/2/2)からなる混合凝集剤(沈降速度1cm/分)を用い、洗車排水に対して、50〜100mg/リットルとなるように添加した。活性炭処理部は、ヤシ殻活性炭(CW130A,二村化学工業(株)製)1kgを充填したカラム(直径15cm×長さ30cm)を膜透過液ラインに取り付けて行った。
表1に示す装置等を用い、実施例1と同様にして運転を行った。ただし、参考例1では、沈降速度0.4cm/分のオイルシャット(三井鉱山エンジニアリング社製)を用いた。また、実施例4では、酢酸セルロース膜に替えて、ポリエーテルスルホン製限外濾過中空糸膜を用いた。結果を表1に示す。
表1に示す装置等を用い、実施例1と同様にして運転を行った。ただし、沈降速度0.1cm/分のカチオン系ポリアクリルアミド(三井サイアック社製のC4867)を用いた。結果を表1に示す。
3 活性炭処理部
4 膜分離部
5 貯水部
Claims (3)
- 凝集剤を用いた凝集沈殿処理部、膜処理部及び活性炭処理部を少なくとも有する洗車排水処理装置であり、
装置全体の平面面積が1〜5m2、最大高さが1.5〜2.5mであり、装置全体の平面面積に占める各部の平面面積の割合が、凝集沈殿処理部が25〜55%、膜処理部が2〜10%、活性炭処理部が1〜10%であり、
凝集沈殿処理部において沈降速度が0.5〜3.0cm/分である凝集剤を使用し、
下記式から求められるCOD除去率が30%以上である、車両の洗車場に設置する洗車排水処理装置。
COD除去率(%)=(洗車排水のCOD−処理水のCOD)/洗車排水のCOD×100 - 凝集剤を用いた凝集沈殿処理部、膜処理部及び活性炭処理部を少なくとも有する洗車排水処理装置であり、
装置全体の平面面積が1〜5m2、最大高さが1.5〜2.5mであり、装置全体の平面面積に占める各部の平面面積の割合が、凝集沈殿処理部が25〜55%、膜処理部が2〜10%、活性炭処理部が1〜10%であり、
凝集沈殿処理部において沈降速度が0.5〜3.0cm/分である凝集剤を使用し、
下記式から求められる装置単位体積当たりの処理速度が0.25〜0.65(1/hr)である、車両の洗車場に設置する洗車排水処理装置。
装置単位体積当たりの処理速度(1/hr)=処理速度(m3/hr)/装置体積(m3) - 膜処理部における分離膜の純水透水速度が300〜3,000LMHKである請求項1又は2記載の洗車排水処理装置。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003273401A JP3896101B2 (ja) | 2003-07-11 | 2003-07-11 | 洗車排水処理装置 |
| PCT/JP2004/009710 WO2005005321A1 (ja) | 2003-07-11 | 2004-07-08 | 洗車排水処理装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003273401A JP3896101B2 (ja) | 2003-07-11 | 2003-07-11 | 洗車排水処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005028339A JP2005028339A (ja) | 2005-02-03 |
| JP3896101B2 true JP3896101B2 (ja) | 2007-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003273401A Expired - Fee Related JP3896101B2 (ja) | 2003-07-11 | 2003-07-11 | 洗車排水処理装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3896101B2 (ja) |
| WO (1) | WO2005005321A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102086413B1 (ko) * | 2019-08-19 | 2020-03-09 | 최은준 | 농기계 세척시스템 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5082496B2 (ja) * | 2006-02-24 | 2012-11-28 | 東レ株式会社 | 連続発酵による化学品の製造方法および連続発酵装置 |
| WO2007097260A1 (ja) | 2006-02-24 | 2007-08-30 | Toray Industries, Inc. | 化学品の製造方法、および、連続発酵装置 |
| JP5130811B2 (ja) * | 2006-07-19 | 2013-01-30 | 東レ株式会社 | 連続発酵による1,3−プロパンジオールの製造方法 |
| JP5130816B2 (ja) * | 2006-08-02 | 2013-01-30 | 東レ株式会社 | 連続発酵によるコハク酸の製造方法 |
| JP5458479B2 (ja) * | 2006-09-26 | 2014-04-02 | 東レ株式会社 | 連続発酵によるカダベリンの製造方法 |
| JP5141126B2 (ja) * | 2006-09-26 | 2013-02-13 | 東レ株式会社 | 連続発酵によるd−乳酸の製造方法 |
| JP5262004B2 (ja) * | 2006-11-01 | 2013-08-14 | 東レ株式会社 | 連続発酵による乳酸の製造方法 |
| JP5458481B2 (ja) * | 2007-02-06 | 2014-04-02 | 東レ株式会社 | 連続発酵によるl−アミノ酸の製造方法 |
| JP5092487B2 (ja) * | 2007-03-27 | 2012-12-05 | 東レ株式会社 | 連続発酵による化学品の製造法 |
| JP5130826B2 (ja) * | 2007-03-28 | 2013-01-30 | 東レ株式会社 | 連続発酵による乳酸の製造方法 |
| JP5141133B2 (ja) * | 2007-08-10 | 2013-02-13 | 東レ株式会社 | 連続発酵によるタンパク質の製造方法 |
| JP5223520B2 (ja) * | 2007-08-22 | 2013-06-26 | 東レ株式会社 | 連続発酵による化学品の製造方法 |
| GB2575372B (en) * | 2019-08-30 | 2021-04-14 | Lee Ashwell Sean | Water treatment apparatus and method |
| TWI796969B (zh) * | 2022-03-15 | 2023-03-21 | 香港商運通汽車有限公司 | 廢水處理系統 |
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| JPH10314796A (ja) * | 1997-05-15 | 1998-12-02 | Morita Econos Ltd | 洗車水リサイクル装置 |
| JP2003093802A (ja) * | 2001-09-27 | 2003-04-02 | Daicel Chem Ind Ltd | 排水処理装置及びその運転方法 |
| JP2003093807A (ja) * | 2001-09-27 | 2003-04-02 | Daicel Chem Ind Ltd | 洗車排水の循環使用装置 |
| JP4853755B2 (ja) * | 2001-09-27 | 2012-01-11 | 株式会社ダイセル | 洗車排水処理用の凝集剤 |
| JP2003093803A (ja) * | 2001-09-27 | 2003-04-02 | Daicel Chem Ind Ltd | 含油排水処理方法 |
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| KR102086413B1 (ko) * | 2019-08-19 | 2020-03-09 | 최은준 | 농기계 세척시스템 |
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