JPS6333403B2 - - Google Patents
Info
- Publication number
- JPS6333403B2 JPS6333403B2 JP8042381A JP8042381A JPS6333403B2 JP S6333403 B2 JPS6333403 B2 JP S6333403B2 JP 8042381 A JP8042381 A JP 8042381A JP 8042381 A JP8042381 A JP 8042381A JP S6333403 B2 JPS6333403 B2 JP S6333403B2
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- alkaline degreasing
- liquid
- immersed
- flocculant
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 40
- 239000002699 waste material Substances 0.000 claims description 28
- 238000005238 degreasing Methods 0.000 claims description 23
- 125000002091 cationic group Chemical group 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 11
- 229920006317 cationic polymer Polymers 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000009940 knitting Methods 0.000 description 5
- 238000010422 painting Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 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
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Description
【発明の詳細な説明】
本発明はアルカリ脱脂廃液の再生処理方法及び
その方法を実施する際に用いられる再生処理材料
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for regenerating alkaline degreasing waste liquid and a regenerating material used in carrying out the method.
各種金属表面を塗装する際に、その前処理とし
て金属表面の脱脂処理、特にアルカリ脱脂液によ
る化学処理が広く行われている。このようなアル
カリ脱脂液を繰返し使用するにつれ、油分が次第
に増加し使用不可能になる。使用不可能となつた
アルカリ脱脂廃液の再生方法として、最近ウルト
ラフイルトレーシヨン法が実施されている。この
方法によれば、脱脂廃液中に完全に乳化された油
分も捕集分離できるが、処理時間が長いこと、大
量処理が困難なこと、装置が高価なことなどの欠
点がある。 BACKGROUND ART When painting various metal surfaces, degreasing treatment of the metal surface, particularly chemical treatment using an alkaline degreasing liquid, is widely performed as a pretreatment. As such an alkaline degreasing solution is used repeatedly, its oil content gradually increases and it becomes unusable. Ultrafiltration has recently been implemented as a method for recycling alkaline degreasing waste liquid that is no longer usable. According to this method, oil completely emulsified in the degreasing waste liquid can be collected and separated, but it has drawbacks such as long processing time, difficulty in large-scale processing, and expensive equipment.
本発明者等はアルカリ脱脂廃液を簡単かつ安価
に再生処理する方法を開発すべく鋭意研究を重ね
た結果、網状体に陽イオン型凝集剤を塗着させて
形成した再生処理材料をアルカリ脱脂廃液中に浸
漬し、これに空気などの気体を吹込むことによ
り、該廃液中の微細懸濁物質及び油分を分離容易
なスカム状物質として液面に浮上分離させ得るこ
とを見出し、本発明を完成するに至つた。 As a result of intensive research to develop a method for easily and inexpensively recycling alkaline degreasing waste liquid, the present inventors have developed a method for recycling alkaline degreasing waste liquid by applying a cationic flocculant to a reticulated material. The present invention was completed based on the discovery that fine suspended matter and oil in the waste liquid can be floated to the liquid surface as easily separated scum-like substances by immersing the waste liquid in the waste liquid and blowing gas such as air into it. I came to the conclusion.
本発明において、再生処理材料として用いる網
状体は、直径0.1〜0.3mm、好ましくは0.12〜0.16
mmの糸状の各種線材、例えば、鉄線、亜鉛引鉄
線、銅線、真ちゆう線、ブロンズ線、モネル線、
燐青銅線、ステンレス線、アルミニウム線、イン
コネル線、チタニウム線などの金属線の他、ポリ
エチレン繊維、ポリプロピレン繊維、ナイロン繊
維などの各種合成繊維、さらにアスベスト繊維な
どの無機繊維が適用される。本発明においては、
これらの細線材を用い、網状体を形成する。この
場合、網状体としては、２次元構造ではなく、３
次元構造のものが好ましく、ストツキングやセー
タの編成に用いられている、横編みや平編み、ゴ
ム編み、パール編みなどのメリヤス織の手法によ
つて編成するのがよい。この網状体において、そ
の網目の寸法は、0.3〜0.04mm、好ましくは0.2〜
0.1mmの範囲にするのがよく、また空間率は50〜
98％、好ましくは90〜98％の範囲に保持するのが
よい。本発明において、この網状体としては、従
来、浮遊物の除去用炉材として用いられているニ
ツトワイヤメツシユエレメントの使用が好ましい
本発明においては、このような網状体に対し、
本発明の再生処理材料とするために、その表面
に、陽イオン型凝集剤を塗着させる。アルキルカ
ルボン酸、アルキル硫酸エステル、アルキルアリ
ールスルホン酸塩、ポリアミノポリカルボン酸、
アルキルアミン塩、アルキル四級アンモニウム
塩、アルキルピリジニウム塩などの陽イオン系活
性剤が用いられるが、好ましくは、陽イオン系の
高分子凝集剤が用いられる。陽イオン高分子凝集
剤としては、ポリアクリルアミド系のもの、アニ
リン樹脂塩酸塩、ポリチオ尿素塩酸塩、ポリビニ
ルピリジン塩酸塩、ポリエチレンイミン樹脂、ジ
シアンジアミド−ホルマリン樹脂などが挙げられ
るが、本発明の場合、分子量50万〜500万のボリ
アクリルアミドのカチオン変性物の使用が好まし
い。 In the present invention, the reticular body used as the recycled material has a diameter of 0.1 to 0.3 mm, preferably 0.12 to 0.16 mm.
mm thread-like wire rods, such as iron wire, galvanized wire, copper wire, brass wire, bronze wire, monel wire,
In addition to metal wires such as phosphor bronze wires, stainless steel wires, aluminum wires, Inconel wires, and titanium wires, various synthetic fibers such as polyethylene fibers, polypropylene fibers, and nylon fibers, as well as inorganic fibers such as asbestos fibers are applicable. In the present invention,
A net-like body is formed using these thin wire materials. In this case, the network is not a two-dimensional structure but a three-dimensional structure.
It is preferable to have a dimensional structure, and it is preferable to knit it by stockinette weaving techniques such as flat knitting, flat knitting, rubber knitting, and purl knitting, which are used for knitting stockings and sweaters. In this net-like body, the mesh size is 0.3 to 0.04 mm, preferably 0.2 to 0.04 mm.
It is best to keep it within the range of 0.1mm, and the void ratio is 50~
It is good to keep it in the range of 98%, preferably 90-98%. In the present invention, it is preferable to use a knitted wire mesh element, which has been conventionally used as a furnace material for removing suspended matter, as the net-like body.
In order to obtain the recycled material of the present invention, a cationic flocculant is applied to the surface thereof. Alkyl carboxylic acid, alkyl sulfate, alkylaryl sulfonate, polyaminopolycarboxylic acid,
Cationic activators such as alkylamine salts, alkyl quaternary ammonium salts, and alkylpyridinium salts are used, and preferably, cationic polymer flocculants are used. Examples of cationic polymer flocculants include polyacrylamide-based ones, aniline resin hydrochloride, polythiourea hydrochloride, polyvinylpyridine hydrochloride, polyethyleneimine resin, dicyandiamide-formalin resin, etc. In the case of the present invention, molecular weight Preference is given to using a cationically modified polyacrylamide of 500,000 to 5,000,000.
網状体表面に陽イオン型凝集剤を塗着させるに
は、接着剤を含む溶液又はエマルジヨンに陽イオ
ン型凝集剤を混入して、塗布液を形成し、この塗
布液を網状体表面に塗布する。この場合、接着剤
としては、水性エマルジヨン型接着剤が用いら
れ、例えば、天然ゴムラテツクス、スチレン−ブ
タジエンラテツクス、アクリロニトリル−ブタジ
エンラテツクスなどの合成ゴスラテツクス、ポリ
アクリル酸エマルジヨン、ポリ酢酸ビニルエマル
ジヨン、ポリ塩化ビニルエマルジヨン、エチレン
−酢酸ビニル−塩化ビニル三元共重合体エマルジ
ヨンなどの熱可塑性樹脂エマルジヨンが適用され
る。また、陽イオン型高分子凝集剤を接着剤の水
性エマルジヨンと混合させる場合、混和剤を添加
するのが好ましく、この場合の混和剤としては、
塩酸、硫酸、リン酸などの無機酸のナトリウム塩
が用いられるが、特に、ピロリン酸、ポリリン酸
などのリン酸のナトリウム塩の使用が好適であ
る。この混和剤は、水性エマルジヨンと陽イオン
型高分子凝集剤との混和を容易にするだけでな
く、網状体を水中に浸漬した場合に、陽イオン型
高分子凝集剤を網状体表面から円滑に溶出させる
効果を示し、接着剤内部に閉じ込められた陽イオ
ン高分子凝集剤を効果的に溶出させる効果も示
す。網状体に対する塗液の塗布方法としては、ス
プレー法、浸漬法など任意の方法が採用される。
網状体に対する塗布量は、網状体の全表面１m2あ
たり陽イオン型凝集剤５〜20ｇの割合である。 To apply a cationic flocculant to the surface of the network, mix the cationic flocculant into a solution or emulsion containing an adhesive to form a coating liquid, and apply this coating liquid to the surface of the network. . In this case, an aqueous emulsion type adhesive is used as the adhesive, such as synthetic rubber latex such as natural rubber latex, styrene-butadiene latex, acrylonitrile-butadiene latex, polyacrylic acid emulsion, polyvinyl acetate emulsion, polyvinyl acetate emulsion, etc. Thermoplastic resin emulsions such as vinyl chloride emulsion and ethylene-vinyl acetate-vinyl chloride terpolymer emulsion are applicable. In addition, when mixing a cationic polymer flocculant with an aqueous emulsion of an adhesive, it is preferable to add an admixture, and in this case, the admixture includes:
Sodium salts of inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid are used, and sodium salts of phosphoric acids such as pyrophosphoric acid and polyphosphoric acid are particularly preferred. This admixture not only facilitates the mixing of the aqueous emulsion and the cationic polymer flocculant, but also smoothly removes the cationic polymer flocculant from the surface of the net when the net is immersed in water. It also shows the effect of eluating the cationic polymer flocculant trapped inside the adhesive. Any method such as a spray method or a dipping method can be used to apply the coating liquid to the net-like body.
The amount applied to the network is 5 to 20 g of cationic flocculant per 1 m 2 of the total surface of the network.
本発明により、前記のようにして形成された再
生処理剤を用いてアルカリ脱脂廃液を再生処理す
るには、再生処理材料を、適当な処理槽又は処理
容器中に前記成形体を固定して作製した処理装置
に、アルカリ脱脂廃液を入れ、装置の底部又は底
部付近から空気などの気体を分散流として導入
し、廃液中に気泡を形成させる。このようにして
処理を行う時には、網状体中に含まれる陽イオン
型凝集剤が廃液中に溶解し、廃液中に含まれる油
分や懸濁物質、その他の汚染物はその凝集剤の作
用により凝集し、フロツクを形成する。そして、
このフロツクは、廃液中に形成された気泡に吸着
して浮上し、スカム状で液面に浮遊する。この液
面に浮遊するスカム状物を除去して清澄な再生さ
れた洗浄液を得る。このアルカリ脱脂廃液の処理
において、処理槽又は処理容器中に固定した網状
体は、固液分離に最適なスクリーン効果を示す。
また、この処理に際し、アルカリ脱脂廃液中に存
在させせる陽イオン型の凝集剤の量は、適用する
凝集剤の種類にもよるが、廃液１中、10〜１mg
の割合である。 According to the present invention, in order to recycle alkaline degreasing waste liquid using the regeneration treatment agent formed as described above, the regeneration treatment material is prepared by fixing the molded body in a suitable treatment tank or treatment container. The alkaline degreasing waste liquid is put into a processing apparatus, and a gas such as air is introduced as a dispersed flow from the bottom or near the bottom of the apparatus to form bubbles in the waste liquid. When processing in this way, the cationic flocculant contained in the network dissolves in the waste liquid, and the oil, suspended substances, and other contaminants contained in the waste liquid are flocculated by the action of the coagulant. and form a flock. and,
This floc adsorbs to air bubbles formed in the waste liquid, floats to the surface, and floats on the liquid surface in the form of a scum. The scum floating on the liquid surface is removed to obtain a clear regenerated cleaning liquid. In the treatment of this alkaline degreasing waste liquid, the mesh body fixed in the treatment tank or treatment container exhibits an optimal screen effect for solid-liquid separation.
In addition, during this treatment, the amount of cationic flocculant to be present in the alkaline degreasing waste liquid is 10 to 1 mg in the waste liquid 1, although it depends on the type of flocculant to be applied.
This is the percentage of
なお、アルカリ脱脂廃液としては、苛性ソーダ
やソーダ灰などの強アルカリ溶液に高温度で長時
間浸漬処理した後の液や、珪酸ソーダ、燐酸ソー
ダ系の弱アルカリを単独または界面活性剤を添加
して比較的低温で、短時間浸漬処理した後の液な
どが包含される。 In addition, the alkaline degreasing waste liquid is the liquid that has been immersed in a strong alkaline solution such as caustic soda or soda ash at high temperature for a long time, or the liquid that has been treated with a weak alkali such as sodium silicate or sodium phosphate alone or with the addition of a surfactant. This includes liquids that have been immersed for a short period of time at relatively low temperatures.
次に、本発明を実施例によりさらに詳細に説明
する。 Next, the present invention will be explained in more detail with reference to Examples.
実施例 １
水性エマルジヨン（住友CY53）に対しドデシ
ルトリメチルアンモニウムクロライドを５％溶解
させたものに、ニツトワイヤメツシユのステンレ
ス線を浸漬し、105℃で40分間乾燥した。Example 1 A stainless steel wire of knitted wire mesh was immersed in a 5% solution of dodecyltrimethylammonium chloride in an aqueous emulsion (Sumitomo CY53) and dried at 105°C for 40 minutes.
上記のものをアルカリ脱脂廃液に浸し、空気を
40分間通気し、液面に浮上したスカムを分離し
た。その結果、SS（固体）成分は94.5ppmから
53ppmに、油分は1.825ppmから197ppmになり充
分に再生ができた。 Soak the above items in alkaline degreasing waste liquid and remove air.
After aeration for 40 minutes, the scum that rose to the surface of the liquid was separated. As a result, the SS (solid) content starts from 94.5ppm
The oil content decreased from 1.825ppm to 197ppm, indicating sufficient regeneration.
実施例 ２
ニツトワイヤメツシユのステンレス線をカチオ
ン系高分子凝集剤（スミフロツクFC−300）の
0.1％溶液中に浸漬して120℃で20分間乾燥した。Example 2 A stainless steel wire of knitted wire mesh was coated with a cationic polymer flocculant (Sumifloc FC-300).
It was immersed in a 0.1% solution and dried at 120°C for 20 minutes.
上記のものをアルカリ脱脂廃液に浸し、空気に
40分間通気したところ、1.825ppmの油分が
605ppmになつた。 Soak the above items in alkaline degreasing waste liquid and expose to air.
After 40 minutes of ventilation, 1.825ppm of oil was found.
It became 605ppm.
実施例 ３
高分子凝集剤（スミフロツクFC−300）0.1ｇ
とNa2SO4 0.3ｇを200c.c.の水に溶解させ、その溶
液中にニツトワイヤメツシユのステンレス線を浸
漬、105℃で20分乾燥した。この浸漬、乾燥を三
度くり返した。Example 3 Polymer flocculant (Sumifloc FC-300) 0.1g
and 0.3 g of Na 2 SO 4 were dissolved in 200 c.c. of water, and a stainless steel wire of knitted wire mesh was immersed in the solution and dried at 105° C. for 20 minutes. This dipping and drying process was repeated three times.
上記のものと塗装用アルカリ脱脂廃液に浸し、
１時間通気したところ、575ppmの油分が60ppm
になつた。 Soak in the above and alkaline degreasing waste liquid for painting.
After 1 hour of ventilation, the oil content of 575ppm became 60ppm.
It became.
実施例 ４
高分子凝集剤（スミフロツクFC−300）0.1ｇ
とNa2SO4 0.3ｇを200c.c.の水性エマルジヨン溶液
に溶解させ、その溶液中にニツトワイヤメツシユ
のステンレス線を浸漬、105℃で20分乾燥を三度
くり返した。Example 4 Polymer flocculant (Sumifloc FC-300) 0.1g
and 0.3 g of Na 2 SO 4 were dissolved in 200 c.c. of an aqueous emulsion solution, and a stainless steel wire of knitted wire mesh was immersed in the solution and dried for 20 minutes at 105° C. three times.
上記のものを塗装用アルカリ脱脂廃液に浸し空
気を１時間通気したところ、530ppmの油分が
96ppmになつた。 When the above item was immersed in alkaline degreasing waste liquid for painting and aerated with air for 1 hour, 530 ppm of oil was found.
It became 96ppm.
実施例 ５
高分子凝集剤（スミフロツクFC−250）0.1ｇ
とNa2SO4 0.3ｇを水性エマルジヨン（住友
CY53）200c.c.に溶解させ、その溶液中にニツトワ
イヤメツシユのステンレス線を浸漬、120℃で20
分乾燥した。Example 5 Polymer flocculant (Sumifloc FC-250) 0.1g
and 0.3 g of Na 2 SO 4 in an aqueous emulsion (Sumitomo
CY53) Dissolve in 200c.c., immerse the stainless steel wire of knitted wire mesh in the solution, and heat at 120℃ for 20 minutes.
Dry for a minute.
上記のものを塗装用アルカリ脱脂廃液に浸し空
気を40分通気した。油分濃度が1.825ppmから
1.270ppmになつた。 The above items were immersed in an alkaline degreasing waste solution for painting and aerated with air for 40 minutes. Oil concentration starts from 1.825ppm
It became 1.270ppm.
実施例 ６
高分子凝集剤（スミフロツクFC−300）0.1ｇ
をNa2SO4 0.3ｇを水性エマルジヨン（住友
CY53）200c.c.に溶解させ、その液中にニツトワイ
ヤメツシユのステンレス線を浸漬、120℃で20分
乾燥した。Example 6 Polymer flocculant (Sumifloc FC-300) 0.1g
0.3g of Na 2 SO 4 in aqueous emulsion (Sumitomo
CY53) was dissolved in 200 c.c., and a stainless steel wire made of knitted wire mesh was immersed in the solution and dried at 120°C for 20 minutes.
上記のものを塗装用アルカリ脱脂廃液に浸し空
気を１時間通気した。1.825ppmの油分が605ppm
と３分の１になり脱脂液の再生ができた。 The above-mentioned product was immersed in an alkaline degreasing waste solution for painting and aerated with air for 1 hour. 1.825ppm oil content is 605ppm
The degreasing liquid was able to be regenerated.
Claims (1)
成した再生処理材料をアルカリ脱脂廃液中に浸漬
せしめ、これに気体を吹き込むことにより該廃液
中の油分を浮上分離せしめることを特徴とするア
ルカリ脱脂廃液の再生処理方法。 ２ 網状体表面に陽イオン型凝集剤を塗着したこ
とを特徴とするアルカリ脱脂廃液の再生処理用材
料。[Claims] 1. Recycled material formed by applying a cationic flocculant to the surface of the network is immersed in alkaline degreasing waste liquid, and by blowing gas into this, the oil content in the waste liquid is floated and separated. A method for recycling alkaline degreasing waste liquid, characterized by: 2. A material for recycling alkaline degreasing waste liquid, characterized in that a cationic flocculant is applied to the surface of the network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042381A JPS57194010A (en) | 1981-05-27 | 1981-05-27 | Regenerating method and material for waste liquid of alkali degreasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042381A JPS57194010A (en) | 1981-05-27 | 1981-05-27 | Regenerating method and material for waste liquid of alkali degreasing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57194010A JPS57194010A (en) | 1982-11-29 |
| JPS6333403B2 true JPS6333403B2 (en) | 1988-07-05 |
Family
ID=13717872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8042381A Granted JPS57194010A (en) | 1981-05-27 | 1981-05-27 | Regenerating method and material for waste liquid of alkali degreasing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57194010A (en) |
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|---|---|---|---|---|
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0838806A (en) * | 1994-07-27 | 1996-02-13 | Fsk Corp | Oil/water separation device |
| JP5250486B2 (en) * | 2009-06-01 | 2013-07-31 | 新日鐵住金株式会社 | Purification process for steel manufacturing wastewater |
-
1981
- 1981-05-27 JP JP8042381A patent/JPS57194010A/en active Granted
Cited By (10)
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|---|---|---|---|---|
| US10812186B2 (en) | 2007-05-24 | 2020-10-20 | Federal Law Enforcement Development Services, Inc. | LED light fixture |
| US10820391B2 (en) | 2007-05-24 | 2020-10-27 | Federal Law Enforcement Development Services, Inc. | LED light control assembly and system |
| US10911144B2 (en) | 2007-05-24 | 2021-02-02 | Federal Law Enforcement Development Services, Inc. | LED light broad band over power line communication system |
| US11265082B2 (en) | 2007-05-24 | 2022-03-01 | Federal Law Enforcement Development Services, Inc. | LED light control assembly and system |
| US10763909B2 (en) | 2009-04-01 | 2020-09-01 | Federal Law Enforcement Development Services, Inc. | Visible light communication transceiver glasses |
| US11424781B2 (en) | 2009-04-01 | 2022-08-23 | Federal Law Enforcement Development Services, Inc. | Visible light communication transceiver glasses |
| US11018774B2 (en) | 2013-05-06 | 2021-05-25 | Federal Law Enforcement Development Services, Inc. | Network security and variable pulse wave form with continuous communication |
| US11552712B2 (en) | 2013-05-06 | 2023-01-10 | Federal Law Enforcement Development Services, Inc. | Network security and variable pulse wave form with continuous communication |
| US10932337B2 (en) | 2015-08-11 | 2021-02-23 | Federal Law Enforcement Development Services, Inc. | Function disabler device and system |
| US11651680B2 (en) | 2015-08-11 | 2023-05-16 | Federal Law Enforcement Development Services, Inc. | Function disabler device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57194010A (en) | 1982-11-29 |
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