JP2007117939A - 獣脂含有廃水の処理方法 - Google Patents
獣脂含有廃水の処理方法 Download PDFInfo
- Publication number
- JP2007117939A JP2007117939A JP2005316155A JP2005316155A JP2007117939A JP 2007117939 A JP2007117939 A JP 2007117939A JP 2005316155 A JP2005316155 A JP 2005316155A JP 2005316155 A JP2005316155 A JP 2005316155A JP 2007117939 A JP2007117939 A JP 2007117939A
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- JP
- Japan
- Prior art keywords
- tallow
- waste water
- water
- containing waste
- fatty acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003760 tallow Substances 0.000 title claims abstract description 40
- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 15
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 23
- 239000000194 fatty acid Substances 0.000 claims abstract description 23
- 229930195729 fatty acid Natural products 0.000 claims abstract description 23
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 14
- 241001465754 Metazoa Species 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 239000008346 aqueous phase Substances 0.000 claims description 22
- 239000012071 phase Substances 0.000 claims description 8
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 150000007522 mineralic acids Chemical class 0.000 description 3
- 235000015278 beef Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- -1 amine salts Chemical class 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
【解決手段】本発明の獣脂含有廃水の処理方法は、屠殺場において解体された動物を水溶性脂肪酸金属塩で洗浄した獣脂含有廃水に、獣脂含有廃水中の水溶性脂肪酸金属塩量の0.1〜2倍モル量の酸を加えて油相と、水相とに分離して獣脂を回収することを特徴とする。
【選択図】なし
Description
(1)屠殺場において解体された動物を水溶性脂肪酸金属塩で洗浄した獣脂含有廃水に、獣脂含有廃水中の水溶性脂肪酸金属塩量の0.1〜2倍モル量の酸を加えて油相と、水相とに分離して獣脂を回収することを特徴とする獣脂含有廃水の処理方法、
(2)獣脂を分離回収した後の水相に、水酸化カルシウム及び/又は水酸化マグネシウムを添加し、水相中の脂肪酸を不溶性脂肪酸金属塩として沈殿させて回収する上記(1)の獣脂含有廃水の処理方法、
を要旨とするものである。
実施例1〜4、比較例1〜4
牛脂100gを1リットルの水に入れ、これに界面活性剤10gを入れ攪拌したものを獣脂含有廃水として用いた。この廃水に35%塩酸を表1に示すpHとなるまで添加して攪拌し、分液ロートに入れて静置して水相と油相とを分離させた。分離後の水相を取り出して、CODを測定した。更に水相に水酸化カルシウム0.1gを加えて攪拌し、ろ過した後、ろ液のCODを測定した。結果を表1に示した。
Claims (2)
- 屠殺場において解体された動物を水溶性脂肪酸金属塩で洗浄した獣脂含有廃水に、獣脂含有廃水中の水溶性脂肪酸金属塩量の0.1〜2倍モル量の酸を加えて油相と、水相とに分離して獣脂を回収することを特徴とする獣脂含有廃水の処理方法。
- 獣脂を分離回収した後の水相に、水酸化カルシウム及び/又は水酸化マグネシウムを添加し、水相中の脂肪酸を不溶性脂肪酸金属塩として沈殿させて回収する請求項1記載の獣脂含有廃水の処理方法。
Priority Applications (1)
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JP2005316155A JP4891593B2 (ja) | 2005-10-31 | 2005-10-31 | 獣脂含有廃水の処理方法 |
Applications Claiming Priority (1)
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JP2005316155A JP4891593B2 (ja) | 2005-10-31 | 2005-10-31 | 獣脂含有廃水の処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007117939A true JP2007117939A (ja) | 2007-05-17 |
JP4891593B2 JP4891593B2 (ja) | 2012-03-07 |
Family
ID=38142358
Family Applications (1)
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JP2005316155A Active JP4891593B2 (ja) | 2005-10-31 | 2005-10-31 | 獣脂含有廃水の処理方法 |
Country Status (1)
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JP (1) | JP4891593B2 (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS494801B1 (ja) * | 1965-10-21 | 1974-02-04 | ||
JPS504858A (ja) * | 1973-05-17 | 1975-01-18 | ||
JPS50103851A (ja) * | 1974-01-28 | 1975-08-16 | ||
JPS5470645A (en) * | 1977-11-16 | 1979-06-06 | Hitachi Plant Eng & Constr Co Ltd | Purification disposal method of waste water containing oil |
JPS57147487A (en) * | 1981-03-10 | 1982-09-11 | Kanagawaken | Extraction of waste liquid of emulsion cutting oil by paraffin |
JPH02164405A (ja) * | 1988-12-19 | 1990-06-25 | Fushimi Kamaboko Kk | 食品加工排液の処理方法 |
JPH06262185A (ja) * | 1993-03-12 | 1994-09-20 | Kurita Water Ind Ltd | 脂肪酸カルシウムの生成方法 |
JP2001046806A (ja) * | 1999-06-04 | 2001-02-20 | Masanobu Miyake | エマルジョン廃液の油水分離方法及びその装置 |
JP2005211766A (ja) * | 2004-01-28 | 2005-08-11 | E System:Kk | 油脂を含む排水中の油脂スカムの処理方法および処理装置 |
-
2005
- 2005-10-31 JP JP2005316155A patent/JP4891593B2/ja active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS494801B1 (ja) * | 1965-10-21 | 1974-02-04 | ||
JPS504858A (ja) * | 1973-05-17 | 1975-01-18 | ||
JPS50103851A (ja) * | 1974-01-28 | 1975-08-16 | ||
JPS5470645A (en) * | 1977-11-16 | 1979-06-06 | Hitachi Plant Eng & Constr Co Ltd | Purification disposal method of waste water containing oil |
JPS57147487A (en) * | 1981-03-10 | 1982-09-11 | Kanagawaken | Extraction of waste liquid of emulsion cutting oil by paraffin |
JPH02164405A (ja) * | 1988-12-19 | 1990-06-25 | Fushimi Kamaboko Kk | 食品加工排液の処理方法 |
JPH06262185A (ja) * | 1993-03-12 | 1994-09-20 | Kurita Water Ind Ltd | 脂肪酸カルシウムの生成方法 |
JP2001046806A (ja) * | 1999-06-04 | 2001-02-20 | Masanobu Miyake | エマルジョン廃液の油水分離方法及びその装置 |
JP2005211766A (ja) * | 2004-01-28 | 2005-08-11 | E System:Kk | 油脂を含む排水中の油脂スカムの処理方法および処理装置 |
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JP4891593B2 (ja) | 2012-03-07 |
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