JP2008259957A - Treatment material of food processing wastewater and treatment method of food processing wastewater - Google Patents
Treatment material of food processing wastewater and treatment method of food processing wastewater Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 69
- 239000002351 wastewater Substances 0.000 title claims abstract description 59
- 235000013305 food Nutrition 0.000 title claims abstract description 55
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title abstract description 14
- -1 calcium aluminate compound Chemical class 0.000 claims abstract description 33
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 19
- 238000004065 wastewater treatment Methods 0.000 claims description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 9
- 239000000920 calcium hydroxide Substances 0.000 claims description 9
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 9
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical class [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 5
- 239000010909 process residue Substances 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 abstract description 5
- 230000001877 deodorizing effect Effects 0.000 abstract description 4
- 239000000292 calcium oxide Substances 0.000 description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 235000011116 calcium hydroxide Nutrition 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000000306 component Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 235000019645 odor Nutrition 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000011575 calcium Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910004261 CaF 2 Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000012503 blood component Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 230000009246 food effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 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 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 235000012216 bentonite Nutrition 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- FGZBFIYFJUAETR-UHFFFAOYSA-N calcium;magnesium;silicate Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])([O-])[O-] FGZBFIYFJUAETR-UHFFFAOYSA-N 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 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 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 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
- 229910000359 iron(II) 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
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 125000002943 quinolinyl group Chemical class N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
本発明は、主に、食品加工廃水の処理材および食品加工廃水の処理方法に関する。 The present invention mainly relates to a processing material for food processing wastewater and a processing method for food processing wastewater.
近年、環境問題が顕在化している。中でも、食品加工廃水は生活に密着したものであり、その発生そのものを規制できないことから、その処理方法の改善が求められている。食品加工廃水とは、食肉加工廃水、水産加工廃水、給食廃水、パン・菓子製造廃水、弁当加工廃水等を総称するものである。これらの食品加工廃水には、油脂やタンパク質、血液成分などの有機物が多く含まれる。水質汚染のみならず、悪臭の原因ともなるため、その対策が強く求められている現状にある。 In recent years, environmental problems have become apparent. Above all, food processing wastewater is closely related to daily life, and its generation itself cannot be regulated. The food processing wastewater is a general term for meat processing wastewater, fishery processing wastewater, school lunch wastewater, bread / confectionery manufacturing wastewater, lunch processing wastewater, and the like. These food processing wastewaters contain a large amount of organic substances such as fats and oils, proteins and blood components. Since it causes not only water pollution but also bad odor, there is a strong demand for countermeasures.
食品加工廃水の処理方法としては、凝集剤を用いる方法（特許文献１）や処理装置を用いる方法（非特許文献１）などが提案されている。 As a method for treating food processing wastewater, a method using a flocculant (Patent Document 1), a method using a processing apparatus (Non-Patent Document 1), and the like have been proposed.
しかしながら、従来の凝集剤を用いる方法では、十分に食品加工廃水の処理ができないものであった。具体的には、油脂やタンパク質、血液成分などの有機物を十分なレベルまで低減できなく、さらに、悪臭を防止できるものでもなかった。また、処理装置を利用する方法では、高額な装置を購入する必要があり、経済的に余裕のある大企業では対応できるものの、一般の食品加工工場では装置の導入が難しいため、有益な方法とはなっていないのが実状である。今日では、効果的で経済性に富む食品加工廃水の処理方法の開発が強く待たれている。さらに、廃水の悪臭も消臭効果のある食品加工廃水の処理方法の開発が望まれていた。 However, the conventional method using a flocculant cannot sufficiently treat food processing wastewater. Specifically, organic substances such as fats and oils, proteins and blood components could not be reduced to a sufficient level, and further, it was not possible to prevent malodors. In addition, a method using a processing device requires the purchase of an expensive device, which can be handled by large corporations with sufficient economic resources. The actual situation is not. Today, the development of effective and economical food processing wastewater treatment methods is awaited. Furthermore, the development of a method for treating food processing wastewater that has a deodorizing effect on the malodor of wastewater has been desired.
そこで、本発明者は、鋭意努力を重ね、種々の実験検討を通して、前記課題を解決できることを知見し、本発明を完成するに至った。 Accordingly, the present inventor has made intensive efforts and has found that the above problems can be solved through various experimental studies, and has completed the present invention.
すなわち、本発明は、カルシウムアルミネート化合物を含有する食品加工廃水の処理材であり、カルシウムアルミネート化合物の粉末度がブレーン比表面積で３０００ｃｍ２／ｇ以上であることを特徴とする前記食品加工廃水の処理材であり、カルシウムアルミネート化合物のＣａＯ／Ａｌ２Ｏ３モル比が０．５〜３であることを特徴とする該食品加工廃水の処理材であり、さらに、水酸化アルシウムとを含有する前記食品加工廃水の処理材であり、前記食品加工廃水の処理材を用いることを特徴とする食品加工廃水の処理方法である。 That is, the present invention is a treatment material for food processing wastewater containing a calcium aluminate compound, wherein the calcium aluminate compound has a fineness of 3000 cm 2 / g or more in terms of Blaine specific surface area. A treatment material for the food processing wastewater, characterized in that the CaO / Al 2 O 3 molar ratio of the calcium aluminate compound is 0.5 to 3, and further contains alcium hydroxide A method for treating food processing wastewater, wherein the food processing wastewater treatment material is used, and the food processing wastewater treatment material is used.
本発明の食品加工廃水の処理材は、排水中のあらゆる成分を効果的に低減でき、また、その固定化速度も迅速である。さらに、悪臭の消臭効果も付与できなどの効果を奏する。 The food processing wastewater treatment material of the present invention can effectively reduce all components in the wastewater, and the immobilization speed thereof is also rapid. Furthermore, the effect of deodorizing odors can be provided.
本発明における％は特に規定しない限り質量基準で示す。 Unless otherwise specified,% in the present invention is expressed on a mass basis.
本発明の食品加工廃水の処理材に係るカルシウムアルミネート化合物とは、ＣａＯとＡｌ２Ｏ３を主体とする化合物を総称するものであり、特に限定されるものではなく、その具体例としては、ＣａＯをＣ、Ａｌ２Ｏ３をＡ、アルカリ金属元素をＲと表記すると、ＣＡ２（ＣａＯ・２Ａｌ２Ｏ３）、ＣＡ（ＣａＯ・Ａｌ２Ｏ３）、Ｃ１２Ａ７（１２ＣａＯ・７Ａｌ２Ｏ３）、Ｃ１１Ａ７・ＣａＦ２（１１ＣａＯ・７Ａｌ２Ｏ３・ＣａＦ２）、Ｃ３Ａ（３ＣａＯ・Ａｌ２Ｏ３）、３ＣａＯ・３Ａｌ２Ｏ３・ＣａＳＯ４などの結晶性の化合物、Ｃ８Ａ３Ｒ（８ＣａＯ・３Ａｌ２Ｏ３・Ｒ２Ｏ）、Ｃ１４Ａ５Ｒ（１４ＣａＯ・５Ａｌ２Ｏ３・Ｒ２Ｏ）、Ｃ３Ａ５Ｒ２（３ＣａＯ・５Ａｌ２Ｏ３・２Ｒ２Ｏ）などのＲ２Ｏ成分を含む結晶性のＣａＯ−Ａｌ２Ｏ３−Ｒ２Ｏ系化合物や、ＣａＯとＡｌ２Ｏ３を主成分とする非晶質の化合物などが挙げられる。 The calcium aluminate compound according to the food processing wastewater treatment material of the present invention is a generic term for compounds mainly composed of CaO and Al 2 O 3 , and is not particularly limited. the CaO C, when the Al 2 O 3 a, denoted an alkali metal element and R, CA 2 (CaO · 2Al 2 O 3), CA (CaO · Al 2 O 3), C 12 a 7 (12CaO · 7Al 2 O 3 ), crystalline compounds such as C 11 A 7 · CaF 2 (11CaO · 7Al 2 O 3 · CaF 2 ), C 3 A (3CaO · Al 2 O 3 ), 3CaO · 3Al 2 O 3 · CaSO 4 , C 8 A 3 R (8CaO · 3Al 2 O 3 · R 2 O), C 14 A 5 R (14CaO · 5Al 2 O 3 · R 2 O), C 3 A 5 R 2 (3CaO · 5Al 2 O 3・R 2 O) crystalline CaO-Al 2 O 3 -R 2 O -based compound containing an R 2 O component such as and, amorphous compounds and the like mainly containing CaO and Al 2 O 3.
本発明の食品加工廃水の処理材に係るカルシウムアルミネート化合物を工業的に得る場合、不純物が含まれることがあるが、その種類及び含有量は、本発明を阻害しない範囲内であれば特に制限されるものではない。その具体例としては、Ｆｅ２Ｏ３、ＳｉＯ２、ＭｇＯ、ＴｉＯ２、Ｐ２Ｏ５、ＣｌおよびＢ２Ｏ３などが挙げられる。 When the calcium aluminate compound related to the treatment material for food processing wastewater of the present invention is industrially obtained, impurities may be contained, but the type and content thereof are particularly limited as long as they do not inhibit the present invention. It is not done. Specific examples thereof include Fe 2 O 3 , SiO 2 , MgO, TiO 2 , P 2 O 5 , Cl and B 2 O 3 .
カルシウムアルミネート化合物に前記不純物が含まれる場合、化合物としては、４ＣａＯ・Ａｌ２Ｏ３・Ｆｅ２Ｏ３、６ＣａＯ・２Ａｌ２Ｏ３・Ｆｅ２Ｏ３、６ＣａＯ・Ａｌ２Ｏ３・２Ｆｅ２Ｏ３などのカルシウムアルミノフェライト、２ＣａＯ・Ｆｅ２Ｏ３やＣａＯ・Ｆｅ２Ｏ３などのカルシウムフェライト、ゲーレナイト２ＣａＯ・Ａｌ２Ｏ３・ＳｉＯ２やアノーサイトＣａＯ・Ａｌ２Ｏ３・２ＳｉＯ２などのカルシウムアルミノシリケート、メルビナイト３ＣａＯ・ＭｇＯ・２ＳｉＯ２やアケルマナイト２ＣａＯ・ＭｇＯ・２ＳｉＯ２やモンチセライトＣａＯ・ＭｇＯ・ＳｉＯ２などのカルシウムマグネシウムシリケート、トライカルシウムシリケート３ＣａＯ・ＳｉＯ２やダイカルシウムシリケート２ＣａＯ・ＳｉＯ２やランキナイト３ＣａＯ・２ＳｉＯ２やワラストナイトＣａＯ・ＳｉＯ２などのカルシウムシリケートなどが混在する場合がある。これらの化合物は本発明の目的を実質的に阻害しない範囲であれば混在していてもよい。 When the calcium aluminate compound contains the impurities, the compounds include 4CaO · Al 2 O 3 · Fe 2 O 3 , 6CaO · 2Al 2 O 3 · Fe 2 O 3 , 6CaO · Al 2 O 3 · 2Fe 2 O Calcium aluminoferrite such as 3 , calcium ferrite such as 2CaO · Fe 2 O 3 and CaO · Fe 2 O 3 , calcium such as galenite 2CaO · Al 2 O 3 · SiO 2 and anorsite CaO · Al 2 O 3 · 2SiO 2 aluminosilicate, Merubinaito 3CaO · MgO · 2SiO 2 and Akerumanaito 2CaO · MgO · 2SiO 2 and calcium magnesium silicate, such as Monte celite CaO · MgO · SiO 2, tri-calcium silicate 3CaO · SiO 2 and Dicalcium silicate 2C In some cases, such as O · SiO 2 and rankinite calcium silicates and night 3CaO · 2SiO 2 and wollastonite CaO · SiO 2 are mixed. These compounds may be mixed as long as the object of the present invention is not substantially inhibited.
本発明の食品加工廃水の処理材に係るカルシウムアルミネート化合物は、ＣａＯ／Ａｌ２Ｏ３のモル比が０．５〜３の範囲とすることが好ましく、１〜２がより好ましい。ＣａＯ／Ａｌ２Ｏ３のモル比が０．５未満では、食品加工廃水中の成分の除去スピードが充分でない場合があり、３を超えると液相中でのカルシウムアルミネート化合物の分散が悪くなる傾向にあり、効率良く食品加工廃水中の成分を除去できない場合がある。 Calcium aluminate compounds according to the processing material of food processing waste water of the present invention preferably the molar ratio of CaO / Al 2 O 3 is in the range of 0.5 to 3, 1 to 2 is more preferred. If the molar ratio of CaO / Al 2 O 3 is less than 0.5, the removal speed of components in food processing wastewater may not be sufficient. If it exceeds 3, the dispersion of the calcium aluminate compound in the liquid phase will be poor. There is a tendency that components in food processing wastewater cannot be removed efficiently.
本発明の食品加工廃水の処理材に係るカルシウムアルミネート化合物の粉末度は、特に限定されるものではないが、ブレーン比表面積で３０００ｃｍ２／ｇ以上が好ましく、４０００〜８０００ｃｍ２／ｇ以上がより好ましい。カルシウムアルミネート化合物の粉末度が３０００ｃｍ２／ｇ未満では、食品加工廃水中の成分の固定化・除去速度が遅くなり、効率が悪くなる場合がある。８０００ｃｍ２／ｇを超えても更なる効果の向上が期待できず、また、粉体が二次凝集して廃水中での分散性が悪くなり、処理効果が低下する傾向を示す場合もある。 Fineness of calcium aluminate compounds according to the food processing waste water treatment material according to the present invention, but are not limited to, preferably 3000 cm 2 / g or more in Blaine specific surface area, more is more 4000~8000cm 2 / g preferable. If the calcium aluminate compound has a fineness of less than 3000 cm 2 / g, the immobilization / removal speed of components in the food processing wastewater may be slowed, resulting in poor efficiency. Even if it exceeds 8000 cm 2 / g, further improvement in the effect cannot be expected, and the powder may be agglomerated to deteriorate the dispersibility in the wastewater, resulting in a tendency for the treatment effect to decrease.
本発明の水酸化カルシウムとは、特に限定されるものではない。Ｃａ（ＯＨ）２と表される化合物を総称するものである。その不純物も環境に有害なものを含まなければ特に限定されるものではない。Ｃａ（ＯＨ）２含有量で８０％以上が好ましく、９０％以上がより好ましい。不純物としては、炭酸カルシウムや酸化カルシウムを含む場合がある。 The calcium hydroxide of the present invention is not particularly limited. This is a general term for compounds represented by Ca (OH) 2 . The impurities are not particularly limited as long as they do not contain harmful substances for the environment. The Ca (OH) 2 content is preferably 80% or more, more preferably 90% or more. Impurities may include calcium carbonate and calcium oxide.
水酸化カルシウムの比表面積は特に限定されるものではないが、通常、ＢＥＴ比表面積で２ｍ２／ｇ以上が好ましく、５ｍ２／ｇ以上がより好ましい。水酸化カルシウムのＢＥＴ比表面積が２ｍ２／ｇ未満であると、カルシウムアルミネート化合物との相互作用が弱くなる傾向にあり、食品加工廃水中の成分の除去スピードが十分でなくなる場合がある。 Although the specific surface area of calcium hydroxide is not particularly limited, it is usually preferably 2 m 2 / g or more and more preferably 5 m 2 / g or more in terms of BET specific surface area. When the BET specific surface area of calcium hydroxide is less than 2 m 2 / g, the interaction with the calcium aluminate compound tends to be weak, and the removal speed of components in food processing wastewater may not be sufficient.
水酸化カルシウムとカルシウムアルミネート化合物の配合割合は、特に限定されるものではないが、水酸化カルシウムとカルシウムアルミネート化合物からなる食品加工廃水の処理材のＣａＯ／Ａｌ２Ｏ３のモル比が１〜６の範囲となるように配合することが好ましく、３〜５の範囲となるように配合することがより好ましい。 The blending ratio of calcium hydroxide and calcium aluminate compound is not particularly limited, but the molar ratio of CaO / Al 2 O 3 of the processing material for food processing wastewater composed of calcium hydroxide and calcium aluminate compound is 1 It is preferable to mix | blend so that it may become the range of -6, and it is more preferable to mix | blend so that it may become the range of 3-5.
本発明では、食品加工廃水の処理材に係るカルシウムアルミネート化合物の他に、モンモリロナイトやカオリナイトなどに代表される層状化合物であるベントナイト類、クリノプチロライトやモルデナイトに代表されるゼオライト類、セピオライト、アパタイトやリン酸ジルコニウムなどのリン酸塩、ハイドロタルサイト類、活性炭、多硫化物や硫化物やチオ硫酸塩類や亜硫酸塩類などのイオウ化合物、アマルガム、硫酸第一鉄や塩化第一鉄などの鉄化合物、セルロース類、ポリビニルアルコール、キトサンなどの水溶性高分子類、ジアルキルジチオカルバミン酸類、キノリン化合物類、ポリアミン類、および糖類などの公知の有害物質低減材料を１種または２種以上を併用してもよい。 In the present invention, in addition to a calcium aluminate compound as a treatment material for food processing wastewater, bentonites which are layered compounds represented by montmorillonite and kaolinite, zeolites represented by clinoptilolite and mordenite, sepiolite , Phosphates such as apatite and zirconium phosphate, hydrotalcites, activated carbon, sulfur compounds such as polysulfides, sulfides, thiosulfates and sulfites, amalgams, ferrous sulfate and ferrous chloride A combination of one or more known harmful substance reducing materials such as iron compounds, celluloses, polyvinyl alcohol, chitosan, and other water-soluble polymers, dialkyldithiocarbamic acids, quinoline compounds, polyamines, and saccharides. Also good.
本発明に用いる食品加工廃水の処理材の形態は、特に限定されるものではなく、溶液状態、粉末、顆粒状、ペレット、カラム、およびフィルターなどのいずれの形態であってもよい。また、液状や粉末状や顆粒状の物質を汚水中に投入し、固液分離してもよく、水和物のカラムやフィルターとして、食品加工廃水を通水させてもよい。 The form of the treatment material for food processing wastewater used in the present invention is not particularly limited, and may be any form such as a solution state, powder, granule, pellet, column, and filter. Alternatively, liquid, powdery or granular substances may be put into sewage for solid-liquid separation, or food processing wastewater may be passed as a hydrate column or filter.
食品加工廃水の処理材の使用量は、廃水中の各成分の濃度や廃水の種類によって異なるため、一義的に決定されるものではないが、通常、食品加工廃水１０００ｃｃあたり、０．５〜１０００ｇが好ましく、１〜５００ｇがより好ましい。０．５ｇ未満では、処理効果が充分でない場合があり、１０００ｇを超えて使用しても更なる効果の増進が期待できず不経済である。 The amount of treatment material used for food processing wastewater varies depending on the concentration of each component in the wastewater and the type of wastewater, and therefore is not uniquely determined, but usually 0.5 to 1000 g per 1000 cc of food processing wastewater. Is preferable, and 1 to 500 g is more preferable. If it is less than 0.5 g, the treatment effect may not be sufficient, and even if it exceeds 1000 g, further enhancement of the effect cannot be expected, which is uneconomical.
本発明の食品加工廃水の処理材は、いずれの食品加工廃水にも有効であるが、廃水の溶媒が水であることが必要である。 The food processing wastewater treatment material of the present invention is effective for any food processing wastewater, but the wastewater solvent must be water.
「実施例１」
水酸化カルシウムと各種のカルシウムアルミネート化合物を表１に示すモル比で配合して食品加工廃水の処理材とした。この食品加工廃水の処理材５ｇを食品加工廃水の１０００ｃｃに入れて攪拌し、１５分後および３時間後に食品加工廃水の処理効果を確認した。また、悪臭の有無についても確認した。なお、比較のために、市販の吸着材を用いた場合についても同様に行った。結果を表１に併記した。
"Example 1"
Calcium hydroxide and various calcium aluminate compounds were blended in the molar ratios shown in Table 1 to prepare food processing wastewater treatment materials. 5 g of this food processing wastewater treatment material was put into 1000 cc of food processing wastewater and stirred, and the treatment effect of food processing wastewater was confirmed after 15 minutes and 3 hours. In addition, the presence or absence of malodor was also confirmed. In addition, it carried out similarly about the case where a commercially available adsorbent is used for the comparison. The results are also shown in Table 1.
＜使用材料＞
水酸化カルシウム：市販の消石灰、ＢＥＴ比表面積５ｍ２／ｇ。
カルシウムアルミネート化合物（１）：１モルの炭酸カルシウムと１モルの酸化アルミニウムを混合粉砕し、１５００℃で３時間焼成する工程を２回繰り返して合成した。ＣａＯ・Ａｌ２Ｏ３を主体、ブレーン比表面積５０００ｃｍ２／ｇ。
カルシウムアルミネート化合物（２）：１２モルの炭酸カルシウムと７モルの酸化アルミニウムを混合粉砕し、１３５０℃で３時間焼成する工程を２回繰り返して合成した。結晶質の１２ＣａＯ・７Ａｌ２Ｏ３を主体、ブレーン比表面積５０００ｃｍ２／ｇ。
カルシウムアルミネート化合物（３）：３モルの炭酸カルシウムと１モルの酸化アルミニウムを混合粉砕し、１３５０℃で３時間焼成する工程を２回繰り返して合成した。３ＣａＯ・Ａｌ２Ｏ３を主体、ブレーン比表面積５０００ｃｍ２／ｇ。カルシウムアルミネート化合物（４）：カルシウムアルミネート化合物（２）の結晶質の１２ＣａＯ・７Ａｌ２Ｏ３にシリカを３％添加し、１６５０℃で溶融した後、急冷して合成した非晶質の１２ＣａＯ・７Ａｌ２Ｏ３。ブレーン比表面積５０００ｃｍ２／ｇ。
カルシウムアルミネート化合物（５）：１モルの炭酸カルシウムと２モルの酸化アルミニウムとを混合粉砕し、１５００℃で３時間焼成する工程を２回繰り返して合成した。ＣａＯ・２Ａｌ２Ｏ３を主体、ブレーン比表面積５０００ｃｍ２／ｇ。
処理材イ：市販の硫酸アルミニウム
処理材ロ：市販のゼオライト
食品加工廃水：食肉加工廃水、ＢＯＤ（生物化学的酸素要求量）…１０００ｍｇ／ｌ、ＣＯＤ（化学的酸素要求量）…４００ｍｇ／ｌ、ｎ−Ｈ（ノルマルヘキサン抽出物質含有量）…５０ｍｇ／ｌ
<Materials used>
Calcium hydroxide: Commercially available slaked lime, BET specific surface area of 5 m 2 / g.
Calcium aluminate compound (1): A process of mixing and grinding 1 mol of calcium carbonate and 1 mol of aluminum oxide and firing at 1500 ° C. for 3 hours was repeated twice. Mainly CaO.Al 2 O 3 with a Blaine specific surface area of 5000 cm 2 / g.
Calcium aluminate compound (2): A process of mixing and grinding 12 moles of calcium carbonate and 7 moles of aluminum oxide and firing at 1350 ° C. for 3 hours was repeated twice. Mainly 12CaO · 7Al 2 O 3 crystalline, Blaine specific surface area of 5000 cm 2 / g.
Calcium aluminate compound (3): A process of mixing and grinding 3 moles of calcium carbonate and 1 mole of aluminum oxide and firing at 1350 ° C. for 3 hours was repeated twice. Mainly composed of 3CaO.Al 2 O 3 and a specific surface area of 5000 cm 2 / g. Calcium aluminate compound (4): Amorphous 12CaO synthesized by adding 3% of silica to crystalline 12CaO.7Al 2 O 3 of calcium aluminate compound (2), melting at 1650 ° C., and rapidly cooling. · 7Al 2 O 3. Blaine specific surface area 5000 cm 2 / g.
Calcium aluminate compound (5): A process of mixing and grinding 1 mol of calcium carbonate and 2 mol of aluminum oxide and firing at 1500 ° C. for 3 hours was repeated twice. Mainly CaO.2Al 2 O 3 , Blaine specific surface area 5000 cm 2 / g.
Treatment Material A: Commercial Aluminum Sulfate Treatment Material B: Commercial Zeolite Food Processing Wastewater: Meat Processing Wastewater, BOD (Biochemical Oxygen Demand) ... 1000 mg / l, COD (Chemical Oxygen Demand) ... 400 mg / l, n-H (normal hexane extractable substance content): 50 mg / l
＜測定方法＞
食品加工廃水の処理効果：処理材で処理する前の液相の全炭素量と、処理材で処理後の液相の全炭素量を有機全炭素分析装置（ＴＯＣ）で定量した。処理前の液相の全炭素濃度を１００％とした時の、処理後の液相の全炭素濃度の相対値から、有機分が９９．９％以上低減された場合は◎、９０％以上低減されたが９９．９％まで低減できなかった場合を○、７０％以上低減されたが８９．９％まで低減できなかった場合を△、７０％まで低減されなかった場合を×とした。
悪臭の有無：処理前と変わらなく悪臭がひどい場合は×、改善効果は認められるものの、悪臭が認められる場合は△、悪臭が全く認められない場合は○とした。
<Measurement method>
Treatment effect of food processing wastewater: The total amount of carbon in the liquid phase before treatment with the treatment material and the total amount of carbon in the liquid phase after treatment with the treatment material were quantified with an organic total carbon analyzer (TOC). From the relative value of the total carbon concentration in the liquid phase after the treatment when the total carbon concentration in the liquid phase before the treatment is 100%, the organic content is reduced by 99.9% or more. However, when it was not able to reduce to 99.9%, it was set as (circle), when 70% or more was reduced, but it was not able to reduce to 89.9% (triangle | delta), and the case where it was not reduced to 70% was set as x.
Presence / absence of bad odor: X when the bad odor was the same as before the treatment, △ when the bad odor was observed, although ameliorating effect was observed, and ◯ when no bad odor was recognized at all.
表１から、本発明により、食品加工廃水中の有機物が著しく低減することが判る。また、ＣａＯ／Ａｌ２Ｏ３モル比が０．５〜６にある本願発明の処理材は食品加工廃水に有効で、特に、ＣａＯ／Ａｌ２Ｏ３モル比が３〜５にある処理材は効率良く食品加工廃水中の有機物を固定化除去することが判る。そして、悪臭の消臭効果にも優れていることがわかる。 From Table 1, it can be seen that the present invention significantly reduces organic matter in food processing wastewater. Moreover, the treatment material of the present invention having a CaO / Al 2 O 3 molar ratio of 0.5 to 6 is effective for food processing wastewater, and in particular, the treatment material having a CaO / Al 2 O 3 molar ratio of 3 to 5 is used. It can be seen that organic substances in food processing wastewater are efficiently fixed and removed. And it turns out that it is excellent also in the deodorizing effect of a bad smell.
「実施例２」
処理材としてカルシウムアルミネート化合物（４）を使用し、ブレーン比表面積を表２に示すように変化させたこと以外は実施例１と同様に行った。結果を表２に示す。
"Example 2"
The same procedure as in Example 1 was conducted except that the calcium aluminate compound (4) was used as the treatment material and the Blaine specific surface area was changed as shown in Table 2. The results are shown in Table 2.
表２から、本発明により、食品加工廃水中の有機物が著しく低減することが判る。また、カルシウムアルミネート化合物の粉末度がブレーン比表面積で３０００ｃｍ２／ｇ以上であることが好ましいことが判る。 From Table 2, it can be seen that the present invention significantly reduces organic matter in food processing wastewater. Moreover, it turns out that it is preferable that the fineness of a calcium aluminate compound is 3000 cm < 2 > / g or more in a Blaine specific surface area.
「実施例３」
処理材としてカルシウムアルミネート化合物（４）を使用し、食品加工廃水１０００ｃｃに対する使用量を表３に示すように変化させたこと以外は実施例１と同様に行った。結果を表３に示す。
"Example 3"
The same procedure as in Example 1 was carried out except that the calcium aluminate compound (4) was used as a treatment material and the amount used for 1000 cc of food processing wastewater was changed as shown in Table 3. The results are shown in Table 3.
表３から、本発明により、食品加工廃水中の有機物が著しく低減することが判る。また、処理材の使用量が所定量で効果が上がることが判る。 From Table 3, it can be seen that the present invention significantly reduces organic matter in food processing wastewater. It can also be seen that the effect is improved when the amount of the treatment material used is a predetermined amount.
本発明の食品加工廃水の処理材および食品加工廃水の処理方法により、効果的に食品加工廃水中の有機物を固定化除去でき、しかも、その固定化速度が迅速であるため、食品加工廃水の処理用途に好適である。 By the food processing wastewater treatment material and the food processing wastewater treatment method of the present invention, organic substances in food processing wastewater can be effectively immobilized and removed, and the immobilization speed is fast, so that the processing of food processing wastewater is possible. Suitable for use.
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| JP2005066437A (en) * | 2003-08-22 | 2005-03-17 | Denki Kagaku Kogyo Kk | Hazardous substance capturing material and treatment method for hazardous substance-containing sewage |
| JP2005254077A (en) * | 2004-03-09 | 2005-09-22 | Sumitomo Osaka Cement Co Ltd | Method for manufacturing heavy metal adsorbent and adsorbent obtained thereby |
| JP2006167598A (en) * | 2004-12-16 | 2006-06-29 | Denki Kagaku Kogyo Kk | Treating material for colored waste water and colored waste water treating method |
| JP2006272144A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Heavy metal insolubilizing material and method of treating heavy metal |
| JP4536635B2 (en) * | 2005-10-25 | 2010-09-01 | 電気化学工業株式会社 | Colored wastewater treatment material and colored wastewater treatment method |
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