CA1076019A - Process for removing waste water from hardening and galvanizing shops - Google Patents
Process for removing waste water from hardening and galvanizing shopsInfo
- Publication number
- CA1076019A CA1076019A CA283,149A CA283149A CA1076019A CA 1076019 A CA1076019 A CA 1076019A CA 283149 A CA283149 A CA 283149A CA 1076019 A CA1076019 A CA 1076019A
- Authority
- CA
- Canada
- Prior art keywords
- waste water
- salt
- hardening
- salt bath
- shops
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005246 galvanizing Methods 0.000 title claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 40
- 239000012141 concentrate Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 230000008020 evaporation Effects 0.000 claims abstract description 5
- 231100000331 toxic Toxicity 0.000 claims description 7
- 230000002588 toxic effect Effects 0.000 claims description 7
- 229910001385 heavy metal Inorganic materials 0.000 claims description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 4
- 150000001553 barium compounds Chemical class 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 229910001963 alkali metal nitrate Inorganic materials 0.000 claims 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims 1
- 238000001784 detoxification Methods 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000011833 salt mixture Substances 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 150000004679 hydroxides Chemical class 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 2
- 150000002826 nitrites Chemical class 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- XDFCIPNJCBUZJN-UHFFFAOYSA-N barium(2+) Chemical compound [Ba+2] XDFCIPNJCBUZJN-UHFFFAOYSA-N 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- ZLCCLBKPLLUIJC-UHFFFAOYSA-L disodium tetrasulfane-1,4-diide Chemical compound [Na+].[Na+].[S-]SS[S-] ZLCCLBKPLLUIJC-UHFFFAOYSA-L 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L sodium sulphate Substances [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/005—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out at high temperatures in the presence of a molten material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762633772 DE2633772A1 (de) | 1976-07-28 | 1976-07-28 | Verfahren zur beseitigung von haerterei- und galvanikabwaessern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1076019A true CA1076019A (en) | 1980-04-22 |
Family
ID=5984072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA283,149A Expired CA1076019A (en) | 1976-07-28 | 1977-07-20 | Process for removing waste water from hardening and galvanizing shops |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4178244A (enExample) |
| JP (1) | JPS5348358A (enExample) |
| AR (1) | AR212280A1 (enExample) |
| AT (1) | AT353711B (enExample) |
| BR (1) | BR7704873A (enExample) |
| CA (1) | CA1076019A (enExample) |
| CH (1) | CH631685A5 (enExample) |
| DE (1) | DE2633772A1 (enExample) |
| ES (1) | ES460658A1 (enExample) |
| FR (1) | FR2359794A1 (enExample) |
| GB (1) | GB1554976A (enExample) |
| IT (1) | IT1083667B (enExample) |
| SE (1) | SE7708641L (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036900A1 (de) * | 1980-03-28 | 1981-10-07 | SKF Industrial Trading & Development Co, B.V. | Verfahren und Vorrichtung zur Rückgewinnung von verbrauchtem Härtesalz |
| ATE29528T1 (de) * | 1984-06-15 | 1987-09-15 | Degussa | Loesung zum ergaenzen des salzgehaltes von geschmolzenen salzbaedern. |
| DE4220401A1 (de) * | 1992-06-22 | 1993-12-23 | Eisenmann Kg Maschbau | Verfahren zur Wasserkreislaufführung an Anlagen für die Behandlung von Werkstücken o. dgl. in Bäder |
| DE4441821C2 (de) * | 1994-11-24 | 2000-01-05 | Bosch Gmbh Robert | Verfahren zum Reinigen von Gegenständen mit anhaftenden Salzen |
| ES2154539B1 (es) * | 1998-03-11 | 2001-10-16 | Fundacion Inasmet | Instalacion para la recuperacion de sales de un horno de tratamiento termico. |
| CN112034909B (zh) * | 2020-07-20 | 2022-02-01 | 阪诺工程(苏州)有限公司 | 一种具有消毒防护隔离层的氢氧化钾温控报警系统 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1696131B2 (de) * | 1968-03-12 | 1973-11-08 | Ekkehard 7050 Waiblingen Mohr | Verfahren und Anlage zum Aufbe reiten von Spul Abwassern aus Salz badhartereien durch Eindampfen |
| US3647358A (en) * | 1970-07-23 | 1972-03-07 | Anti Pollution Systems | Method of catalytically inducing oxidation of carbonaceous materials by the use of molten salts |
| US3642583A (en) * | 1970-08-03 | 1972-02-15 | Anti Pollution Systems | Treatment of sewage and other contaminated liquids with recovery of water by distillation and oxidation |
| JPS48190U (enExample) * | 1971-05-24 | 1973-01-05 | ||
| DE2150679A1 (de) * | 1971-10-12 | 1973-04-19 | Ekkehard Mohr | Verfahren zur unschaedlichmachung von abfallstoffen der salzbadhaerterei |
| DE2232123C2 (de) * | 1972-06-30 | 1974-07-04 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur Entgiftung von Härtesalzrückständen |
| JPS5122571B2 (enExample) * | 1972-07-10 | 1976-07-10 |
-
1976
- 1976-07-28 DE DE19762633772 patent/DE2633772A1/de not_active Withdrawn
-
1977
- 1977-07-12 ES ES460658A patent/ES460658A1/es not_active Expired
- 1977-07-14 IT IT68639/77A patent/IT1083667B/it active
- 1977-07-19 US US05/817,013 patent/US4178244A/en not_active Expired - Lifetime
- 1977-07-20 CA CA283,149A patent/CA1076019A/en not_active Expired
- 1977-07-25 FR FR7722810A patent/FR2359794A1/fr active Granted
- 1977-07-25 BR BR7704873A patent/BR7704873A/pt unknown
- 1977-07-26 AR AR268562A patent/AR212280A1/es active
- 1977-07-26 AT AT543777A patent/AT353711B/de not_active IP Right Cessation
- 1977-07-27 SE SE7708641A patent/SE7708641L/ not_active Application Discontinuation
- 1977-07-28 CH CH936577A patent/CH631685A5/de not_active IP Right Cessation
- 1977-07-28 GB GB31747/77A patent/GB1554976A/en not_active Expired
- 1977-07-28 JP JP9089777A patent/JPS5348358A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5348358A (en) | 1978-05-01 |
| BR7704873A (pt) | 1978-04-25 |
| DE2633772A1 (de) | 1978-02-02 |
| FR2359794B1 (enExample) | 1983-01-07 |
| IT1083667B (it) | 1985-05-25 |
| GB1554976A (en) | 1979-10-31 |
| ATA543777A (de) | 1979-04-15 |
| AR212280A1 (es) | 1978-06-15 |
| ES460658A1 (es) | 1978-05-16 |
| US4178244A (en) | 1979-12-11 |
| CH631685A5 (de) | 1982-08-31 |
| SE7708641L (sv) | 1978-01-29 |
| AT353711B (de) | 1979-11-26 |
| FR2359794A1 (fr) | 1978-02-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |