JPH04131188A - Treatment of waste water - Google Patents
Treatment of waste waterInfo
- Publication number
- JPH04131188A JPH04131188A JP25583890A JP25583890A JPH04131188A JP H04131188 A JPH04131188 A JP H04131188A JP 25583890 A JP25583890 A JP 25583890A JP 25583890 A JP25583890 A JP 25583890A JP H04131188 A JPH04131188 A JP H04131188A
- Authority
- JP
- Japan
- Prior art keywords
- oxidizing agent
- wastewater
- catalyst
- waste water
- added
- 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.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000007800 oxidant agent Substances 0.000 claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910002651 NO3 Inorganic materials 0.000 claims abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical group Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 10
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 8
- 150000004692 metal hydroxides Chemical class 0.000 claims description 8
- 239000005416 organic matter Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 2
- 150000001805 chlorine compounds Chemical group 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 2
- 239000003054 catalyst Substances 0.000 abstract description 24
- 239000005708 Sodium hypochlorite Substances 0.000 abstract description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract description 6
- 150000002736 metal compounds Chemical class 0.000 abstract description 4
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 abstract description 2
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 abstract description 2
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- -1 alkali metal salts Chemical class 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 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 2
- 238000001035 drying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は排水の処理方法に関する。特に工場排水のＣＯ
Ｄ、ＢＯＤを低下させる処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for treating wastewater. In particular, CO from factory wastewater
D. Concerning a treatment method for lowering BOD.
従来、工場等の排水処理方法としては好気性微生物を用
いた活性汚泥法や酸素曝気法、あるいは活性炭による浜
過法等が一般に用いられている。Conventionally, activated sludge method using aerobic microorganisms, oxygen aeration method, or sand filtration method using activated carbon are generally used as methods for treating wastewater from factories and the like.
活性汚泥法については、活性汚泥が排水中の有機物を支
障なく分解し排水を浄化するためには、微生物か増殖て
きる条件を整える必要かあり、ｐＨ。Regarding the activated sludge method, in order for activated sludge to decompose organic matter in wastewater without any problems and purify the wastewater, it is necessary to create conditions for microorganisms to grow, and the pH must be adjusted.
水温、栄養条件さらに十分な酸素の供給か必要である。Water temperature, nutritional conditions, and sufficient oxygen supply are necessary.
排水中には必ずしも微生物の増殖に好都合な物質たけて
なくこれを阻害する物質を含む場合も多くこれを除去す
るとともに、微生物を阻害物質の影響を受けない状態に
馴致することも重要であり、工程の維持管理面に複雑な
要素か多い。また酸素又は空気による曝気法については
簡単であり、小形の設備によく利用されているか十分な
効果か得られていないのか現状である。また活性炭によ
る浜過あるいは吸着等については微量の有機物（ＣＯＤ
約１０〜２０ｐｐｍ）には効果かあるが、吸着量か少な
いのて高濃度の場合は適当てない。Wastewater does not necessarily contain substances that are favorable for the growth of microorganisms, but often also contains substances that inhibit it, and it is important to remove these substances and also to adapt the microorganisms to a state where they are not affected by the inhibitory substances. There are many complicated elements in the maintenance and management aspects of the process. In addition, aeration methods using oxygen or air are simple and are often used in small-sized equipment, but the current situation is that they are not sufficiently effective. In addition, activated carbon absorbs trace amounts of organic matter (COD), etc.
It is effective at about 10 to 20 ppm), but the adsorption amount is small and it is not suitable for high concentrations.
本発明は、酸化剤とその分解触媒となる金属化合物を使
用して、排水中の有機物を分解せしめ排水のＣＯＤもし
くはＢＯＤを低下させることを目的とする。The present invention aims to decompose organic matter in wastewater using an oxidizing agent and a metal compound serving as a decomposition catalyst, thereby lowering the COD or BOD of the wastewater.
本発明はすなわち排水に、酸化剤とニッケル。 In other words, the present invention uses an oxidizing agent and nickel in wastewater.
コバルト、銅及び鉄より選ばれた１種又は２種以上の金
属塩もしくは金属水酸化物とを接触させて、該酸化剤を
分解せしめるとともに排水中に含まれる有機物を分解除
去することを特徴とする排水の処理方法である。The oxidizer is brought into contact with one or more metal salts or metal hydroxides selected from cobalt, copper, and iron to decompose the oxidizing agent and to decompose and remove organic substances contained in the wastewater. This is a method for treating wastewater.
本発明方法に使用される酸化剤どしては次亜塩素酸塩、
例えば次亜塩素酸ナトリウム、次亜塩素酸カリウム等の
アルカリ金属塩、次亜塩素酸カルシウム等のアルカリ土
類金属塩か好適であり、また過硫酸塩、例えば過硫酸ナ
トリウム、過硫酸カリウム、過硫酸アンモニウム等も使
用される。これらの酸化剤は上記金属塩もしくは金属水
酸化物によって容易に分解し発生期の酸素を放出する。Oxidizing agents used in the method of the invention include hypochlorite,
For example, alkali metal salts such as sodium hypochlorite and potassium hypochlorite, alkaline earth metal salts such as calcium hypochlorite are suitable, and persulfates such as sodium persulfate, potassium persulfate, persulfate, etc. Ammonium sulfate and the like are also used. These oxidizing agents are easily decomposed by the metal salts or metal hydroxides and release nascent oxygen.
上記金属塩もしくは金属水酸化＠（以下触媒という）と
してはニッケル、コバルト、銅、又は鉄の塩化物、硫酸
塩、硝醜塩、水酸化物等か挙けられる。これら触媒の形
態は粉末又は粉末を成形した粒状、ペレット状１円柱状
２あるいは活性炭、セライ）・ セビオライト、モンモ
リロナイト等の担体に触媒を担持させたもの等種々用い
られる。Examples of the metal salts or metal hydroxides (hereinafter referred to as catalysts) include chlorides, sulfates, nitric salts, and hydroxides of nickel, cobalt, copper, or iron. These catalysts can be used in various forms, such as powder, granules formed from powder, pellets, cylindrical shapes, or catalysts supported on carriers such as activated carbon, Seviolite, and montmorillonite.
排水と触媒とを接触させる方法は排水に触媒を添加後、
又は添加と同時に酸化剤を添加して攪拌する回分方式、
あるいは粒状触媒、触媒担持体を充填したカラムに酸化
剤を添加した排水を通過させるカラム方式のいずれでも
よい。The method of bringing the wastewater into contact with the catalyst is to add the catalyst to the wastewater, then
Or a batch method in which the oxidizing agent is added and stirred at the same time as the addition.
Alternatively, a column method may be used in which wastewater to which an oxidizing agent has been added is passed through a column filled with a granular catalyst or catalyst carrier.
回分方式の場合、触媒の添加量は排水中のＣＯＤもしく
はＢＯＤの濃度にもよるが、排水量に対し０． ＯＯ］
〜１０重量％好ましくは０．０１〜１重量％である。酸
化剤の添加量は排水中のＣＯＤもしくはＢＯＤ濃度にも
よるが、これら濃度の理論値の１．２〜２．０倍径度か
好ましい。なお分解し難い有機物を含む排水については
この範囲を超える場合もある。In the case of a batch system, the amount of catalyst added depends on the concentration of COD or BOD in the waste water, but the amount of catalyst added is 0. OO]
-10% by weight, preferably 0.01-1% by weight. The amount of the oxidizing agent added depends on the concentration of COD or BOD in the waste water, but is preferably 1.2 to 2.0 times the theoretical value of these concentrations. Note that this range may be exceeded for wastewater containing organic matter that is difficult to decompose.
排水と触媒とを接触させるときのｐＨは、これらの触媒
の水中への溶出を防止するためにアルカリ性に調整する
必要があり、ｐ Ｈ８，５〜１０程度が適当である。The pH when bringing the waste water into contact with the catalyst needs to be adjusted to be alkaline in order to prevent the catalyst from leaching into the water, and a pH of about 8.5 to 10 is appropriate.
なお酸化剤として次亜塩素酸塩を使用する場合の排水の
処理温度は常温でよいが、過硫酸塩を使用する場合は６
０°Ｃ以上に保つ必要かある。また造粒後触媒の乾燥温
度は空気中では６０’Ｃ以下、不活性ガス中では６０〜
２５０″Ｃ程度である。また造粒された触媒あるいは触
媒担持体を直ちに使用せず保存する場合は、予め酸化剤
によりその表面処理を行うことか安定性を保つために有
効である。When using hypochlorite as an oxidizing agent, the wastewater treatment temperature may be at room temperature, but when using persulfate,
Is it necessary to keep it above 0°C? In addition, the drying temperature of the catalyst after granulation is 60'C or less in air, and 60-60'C in inert gas.
The temperature is approximately 250''C. If the granulated catalyst or catalyst support is to be stored without being used immediately, it is effective to perform surface treatment with an oxidizing agent in advance to maintain stability.
本発明方法は排水中に添加された次亜塩素酸塩等の酸化
剤がニッケル、コバルト、銅又は鉄の金属塩もしくは金
属水酸化物の触媒作用によりその分解か促進されて発生
期の酸素を生し、これにより排水中の有機物か分解除去
されるものである。In the method of the present invention, the decomposition of oxidizing agents such as hypochlorite added to wastewater is accelerated by the catalytic action of metal salts or metal hydroxides of nickel, cobalt, copper, or iron, and the nascent oxygen is removed. This process decomposes and removes the organic matter in the wastewater.
以下実施例により本発明の詳細な説明する。 The present invention will be explained in detail below with reference to Examples.
実施例Ｉ
Ｃ０Ｄ Ｉ １０ ｏｐｐｍの工場排水を採取し、これ
に下記方法により製造された触媒を作用させた。Example I C0D I 10 oppm of industrial wastewater was collected and treated with a catalyst produced by the method described below.
すなわち５００ｍｌのビーカーに入れた純水１００ｍｊ
ｌ’にＮｉＳＯ４−６Ｈ２０１２ｇを加え約１０分間攪
拌して溶解させ、これに径２ｍｍのセビオライト（近江
鉱業社製）１００ｇを攪拌しなから添加し約１時間硫酸
ニッケルを含浸させて添着させた。これに有効塩素濃度
１３重量％の次亜塩素酸ナトリウム３０ｍｎを加えて約
１５分間攪拌し硫酸ニッケルか茶黒色になるまて表面処
理を行った。得られた触媒］Ｏｇを３００ｍｌのビーカ
ーに採集し、こねに上記工場排水２００ｍｒと濃度１３
重量％の次亜塩素酸ナトリウム溶液２０ ｍ ｌを加え
て攪拌した（Ｉ）ＨＩ３．４５）。３０分後触媒を浜過
分離し排水溶液をＪＩＳ−ＫＯ１０２によって分析した
ところＣＯＤは９０ｐｐｍであった。In other words, 100mj of pure water in a 500ml beaker
2012 g of NiSO4-6H was added to l' and dissolved by stirring for about 10 minutes, and 100 g of Seviolite (manufactured by Ohmi Mining Co., Ltd.) having a diameter of 2 mm was added thereto without stirring, and impregnated with nickel sulfate for about 1 hour. To this, 30 ml of sodium hypochlorite having an effective chlorine concentration of 13% by weight was added, and the mixture was stirred for about 15 minutes, and the surface was treated until it became nickel sulfate or brownish-black. Obtained catalyst] Og was collected in a 300 ml beaker, mixed with 200 ml of the above factory wastewater and a concentration of 13
20 ml of a wt % sodium hypochlorite solution was added and stirred (I) HI 3.45). After 30 minutes, the catalyst was filtered and the wastewater solution was analyzed according to JIS-KO102, and the COD was found to be 90 ppm.
実施例２ 比較例
実施例１と同し工場排水（ＣＯＤＩｌｏｏｐｐｍ）各２
００ｍ１を採取し、これに下記金属塩粉末及び存効塩素
濃度１３重量％の次亜塩素酸すｌ・リウム溶液２０ｍｊ
？（理論量の約２倍）をそれぞれ添加し、液温２０℃、
ｐＨ１２，４５にて３０分間攪拌後、金属塩をｔ月過分
離しＪｌｌ−ＫＯ１０２に従って処理後排水のＣＯＤの
分析を行った結果を次表に示す。なおＮα１１は次亜塩
素酸ナトリウム溶液のみを加えた比較例である。Example 2 Comparative Example Same as Example 1 Factory wastewater (CODIlooppm) 2 each
00ml was collected, and to this was added the following metal salt powder and 20ml of sulfur/lium hypochlorite solution with an effective chlorine concentration of 13% by weight.
? (approximately twice the theoretical amount), the liquid temperature was 20℃,
After stirring for 30 minutes at pH 12.45, the metal salts were separated for t months, and the COD of the treated wastewater was analyzed according to Jll-KO102. The results are shown in the following table. Note that Nα11 is a comparative example in which only a sodium hypochlorite solution was added.
第１表
実施例３
粉末モンモリロナイト１ｋｇに水酸化ニッケル２００ｇ
、塩化鉄２００ｇとα型セビオライト４００ｇを添加し
て、これを高速攪拌機（ＦＤＧ−Ｃ−５Ｊ 深沈工業
社製）にて攪拌混合しこれを円筒造粒機にかけて造粒し
た（外径４ｍｍ、長さ５〜６ｍｍ）。これを窒素ガス雰
囲気の乾燥機１５０°Ｃにて乾燥して得られた触媒］Ｏ
ｇを使用した以外は実施例１と全く同様にして同し工場
排水２００ｍｌの処理を行ったところ３０分後のＣＯＤ
濃度は１２０ｐｐｍであった。Table 1 Example 3 1 kg of powdered montmorillonite and 200 g of nickel hydroxide
, 200 g of iron chloride and 400 g of α-type Seviolite were added, stirred and mixed using a high-speed stirrer (FDG-C-5J manufactured by Fukushin Kogyo Co., Ltd.), and then granulated using a cylindrical granulator (outer diameter: 4 mm, length: 5-6 mm). The catalyst obtained by drying this in a dryer at 150°C in a nitrogen gas atmosphere]
200 ml of the same factory wastewater was treated in the same manner as in Example 1 except that g was used, and the COD after 30 minutes was
The concentration was 120 ppm.
実施例４ 実施例１にて得られた触媒９．２ｇを内径２０ｍｍ。Example 4 9.2 g of the catalyst obtained in Example 1 had an inner diameter of 20 mm.
高さ３０Ｃｍのカラムに２５ｃｍ深さに充填し、工場排
水（ＣＯＤ３００〜４００ｐｐｍ）１０Ｉに有効塩素濃
度１３重量％の次亜塩素酸ナトリウム溶液を５００ｍｊ
？添加した液を上記カラムに上向流にて通液（ＳＶ＝２
．０ｈｒ−’、ＬＶ＝０．５ｍ／ｈｒ）したところ、出
口の排液中のＣＯＤは３０〜６０ｐｐｍとなり良好な結
果か得られた。A column with a height of 30 cm was filled to a depth of 25 cm, and 500 mj of a sodium hypochlorite solution with an effective chlorine concentration of 13% by weight was added to 10 I of industrial wastewater (COD 300-400 ppm).
? The added solution was passed through the column in an upward flow (SV=2
．． 0 hr-', LV=0.5 m/hr), the COD in the waste liquid at the outlet was 30 to 60 ppm, which was a good result.
実施例５
ＣＯＤ１３００ｐｐｍ、８０″Ｃの工場排水を５００ｍ
ｌのビーカーに２００ｍＡ’採取し、ウオターパスにて
８０″Ｃに保温し、これにＮ１５Ｏ１・６８２０１ｇを
添加し、酸化剤としてに＝、Ｓ２０ａ３ｇを加え、次い
て苛性ソーダにてｐＨ９に調整した。この液を攪拌しな
から１０分後、さらに酸化剤１ｇを加えて同様にｐＨ調
整を行い、合計３０分間反応させた。非常に分解し難い
排水であったが、この処理によりＣＯＤ８０ｐｐｍとな
った。Example 5 500m of industrial wastewater with COD 1300ppm and 80″C
A sample of 200 mA' was collected in a 1-liter beaker and kept at 80''C with a water pass. 68201 g of N15O1 was added to this, 3 g of S20a was added as an oxidizing agent, and the pH was adjusted to 9 with caustic soda. This solution After 10 minutes without stirring, 1 g of oxidizing agent was added, the pH was adjusted in the same way, and the reaction was carried out for a total of 30 minutes.Although the waste water was very difficult to decompose, this treatment reduced the COD to 80 ppm.
本発明方法によれば、工場等の排水中の有機物を分解し
比較的高濃度のＣＯＤやＢＯＤを効率よく低下させるこ
とができる。また使用される金属塩や金属水酸化物は少
量てよく触媒的作用によりそれ自体は化学変化や溶出を
起こさぬので再生使用も可能である。さらに従来法に比
へて小規模な装置、簡易な方法て行いうるのて工業的に
有利である。According to the method of the present invention, it is possible to decompose organic matter in wastewater from factories, etc., and to efficiently reduce relatively high concentrations of COD and BOD. In addition, only a small amount of metal salts or metal hydroxides are used, and because they themselves do not undergo chemical change or elution due to their catalytic action, they can be recycled. Furthermore, it is industrially advantageous because it can be carried out using a smaller-scale apparatus and a simpler method than conventional methods.
Claims (5)
より選ばれた１種又は２種以上の金属塩もしくは金属水
酸化物とを接触させて、該酸化剤を分解せしめるととも
に排水中に含まれる有機物を分解除去することを特徴と
する排水の処理方法。(1) Bringing an oxidizing agent into contact with one or more metal salts or metal hydroxides selected from nickel, cobalt, copper, and iron to decompose the oxidizing agent and adding it to the wastewater. A method for treating wastewater, characterized by decomposing and removing the organic matter contained therein.
求項１に記載の排水の処理方法。(2) The method for treating wastewater according to claim 1, wherein the oxidizing agent is a hypochlorite or a persulfate.
化物、硫酸塩、硝酸塩である請求項１に記載の排水の処
理方法。(3) The method for treating wastewater according to claim 1, wherein the metal salt is a chloride, sulfate, or nitrate of nickel, cobalt, copper, or iron.
らの粉末もしくは担持体を排水に添加後もしくは添加と
同時に酸化剤を添加し攪拌することを特徴とする請求項
１に記載の排水の処理方法。(4) The metal salt or metal hydroxide is brought into contact with the wastewater according to claim 1, wherein an oxidizing agent is added and stirred after or simultaneously with the addition of the powder or carrier to the wastewater. Processing method.
らの担持体もしくは造粒体をカラムに充填し酸化剤を添
加した排水を通液させることを特徴とする請求項１に記
載の排水の処理方法。(5) The wastewater according to claim 1, wherein the contact with the metal salt or metal hydroxide is carried out by filling a column with these carriers or granules and passing the wastewater to which an oxidizing agent has been added. processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25583890A JPH04131188A (en) | 1990-09-25 | 1990-09-25 | Treatment of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25583890A JPH04131188A (en) | 1990-09-25 | 1990-09-25 | Treatment of waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04131188A true JPH04131188A (en) | 1992-05-01 |
Family
ID=17284300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25583890A Pending JPH04131188A (en) | 1990-09-25 | 1990-09-25 | Treatment of waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04131188A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002045436A (en) * | 2000-08-03 | 2002-02-12 | Noritsu Koki Co Ltd | Cracking treatment method for hazardous material and apparatus for the same |
| KR20030065837A (en) * | 2002-02-01 | 2003-08-09 | 이세진 | Treatment of polluted water using catalysis oxidation number |
| JP5194223B1 (en) * | 2012-03-05 | 2013-05-08 | 株式会社セイネン | Chemical treatment agent |
| CN108689474A (en) * | 2018-06-15 | 2018-10-23 | 武汉工程大学 | A kind of water treatment agent and method for treating water of the catalyst of di-iron trioxide containing calcium analysis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223860A (en) * | 1975-08-19 | 1977-02-23 | Asahi Glass Co Ltd | Drainage disposal process |
| JPS5342446A (en) * | 1976-09-28 | 1978-04-17 | Asahi Glass Co Ltd | Drainage treating agent |
| JPS5719086A (en) * | 1980-07-04 | 1982-02-01 | Ebara Infilco Co Ltd | Disposal of organic waste water |
-
1990
- 1990-09-25 JP JP25583890A patent/JPH04131188A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223860A (en) * | 1975-08-19 | 1977-02-23 | Asahi Glass Co Ltd | Drainage disposal process |
| JPS5342446A (en) * | 1976-09-28 | 1978-04-17 | Asahi Glass Co Ltd | Drainage treating agent |
| JPS5719086A (en) * | 1980-07-04 | 1982-02-01 | Ebara Infilco Co Ltd | Disposal of organic waste water |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002045436A (en) * | 2000-08-03 | 2002-02-12 | Noritsu Koki Co Ltd | Cracking treatment method for hazardous material and apparatus for the same |
| KR20030065837A (en) * | 2002-02-01 | 2003-08-09 | 이세진 | Treatment of polluted water using catalysis oxidation number |
| JP5194223B1 (en) * | 2012-03-05 | 2013-05-08 | 株式会社セイネン | Chemical treatment agent |
| JP2013184983A (en) * | 2012-03-05 | 2013-09-19 | Seinen:Kk | Chemical treatment agent |
| CN108689474A (en) * | 2018-06-15 | 2018-10-23 | 武汉工程大学 | A kind of water treatment agent and method for treating water of the catalyst of di-iron trioxide containing calcium analysis |
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