DE2657377A1 - Wet oxidative degradation of organic substances - in effluents in which a redox potential is attained by addn. of iron and phosphorus in trace quantities - Google Patents
Wet oxidative degradation of organic substances - in effluents in which a redox potential is attained by addn. of iron and phosphorus in trace quantitiesInfo
- Publication number
- DE2657377A1 DE2657377A1 DE19762657377 DE2657377A DE2657377A1 DE 2657377 A1 DE2657377 A1 DE 2657377A1 DE 19762657377 DE19762657377 DE 19762657377 DE 2657377 A DE2657377 A DE 2657377A DE 2657377 A1 DE2657377 A1 DE 2657377A1
- Authority
- DE
- Germany
- Prior art keywords
- redox potential
- oxidative degradation
- ppm
- effluents
- phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
- C02F11/08—Wet air oxidation
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
Verfahren zum naßoxidativen Abbau von organischen Verbindungen in Abwässern (Zusatz zu Patent (Anmeldung P 2 559 374.2)) Gegenstand des Hauptpatents (Anmeldung P 2 559 374.2) ist ein Verfahren zum naßoxidativen Abbau von organischen Verbindungen in Abwässern bei erhöhten Temperaturen, das dadurch gekennzeichnet ist, daß das Abwasser bei einem Redoxpotential zwischen 300 bis 600 Millivolt, gemessen mit einer Platinelektrode gegenüber einer Silber-Silber-Chloridelektrode, bei Temperaturen von etwa 80 bis 2500C bei Drücken von etwa 3 bis 200 bar mit Sauerstoff oder sauerstoffhaltigen Gasen oxidiert wird.Process for the wet-oxidative degradation of organic compounds in Wastewater (addendum to patent (application P 2 559 374.2)) Subject of the main patent (Application P 2 559 374.2) is a process for the wet-oxidative degradation of organic substances Compounds in wastewater at elevated temperatures, which is characterized is that the wastewater is measured at a redox potential between 300 to 600 millivolts with a platinum electrode versus a silver-silver-chloride electrode, at temperatures from about 80 to 2500C at pressures of about 3 to 200 bar with oxygen or oxygen-containing Gases is oxidized.
Gegenstand des Hauptpatents ist ferner die Einstellung des genannten Redoxpotentiales durch Zugabe von Redoxsystemen, wobei diese Einstellung besonders vorteilhaft durch Zugabe von Fe°, Fe²+, fe³+ einzeln oder in beliebiger Kombination erfolgt.The subject of the main patent is also the discontinuation of the aforementioned Redox potential by adding redox systems, this setting being special advantageous by adding Fe °, Fe² +, Fe³ + individually or in any combination he follows.
Es wurde nun gefunden, daß bei der Einstellung des Redoxpotentials auf Werte zwischen 300 und 600 Millivolt durch Fe , Fe 2+, Fe3+ die zusätzliche Gegenwart von Phosphationen besonders vorteilhaft ist.It has now been found that when setting the redox potential to values between 300 and 600 millivolts due to Fe, Fe 2+, Fe3 + the additional The presence of phosphate ions is particularly advantageous.
Gegenstand der vorliegenden Erfindung ist somit ein Verfahren zum naßoxidativen Abbau von organischen Verbindungen in Abwässern bei erhöhten Temperaturen gemäß Hauptpatent (Anmeldung P 2 559 374.2), wobei das Abwasser bei einem Redoxpotential zwischen etwa 300 bis 600 Millivolt, gemessen mit einer Platinelektrode gegenüber einer Silber-Silber-Chloridelektrode, bei Temperaturen von etwa 80 bis 2500C bei Drücken von etwa 3 bis 200 bar mit Sauerstoff oder sauerstoffhaltigen Gasen oxidiert wird, dadurch gekennzeichnet, daß die Einstellung des Redoxpotentials durch Zugabe von etwa 300 bis 500 ppm Fe°, Fe²+, Fe³+ einzeln oder in beliebiger Kombination plus 1 bis 10 ppm, vorzugsweise 4 bis 7 ppm Phosphor in Form von Phosphationen erfolgt.The present invention is therefore a method for Wet oxidative degradation of organic compounds in wastewater at elevated temperatures according to the main patent (application P 2 559 374.2), the wastewater at a redox potential between about 300 to 600 millivolts, measured with a platinum electrode opposite a silver-silver-chloride electrode, at temperatures of about 80 to 2500C Oxidized pressures of about 3 to 200 bar with oxygen or oxygen-containing gases is, characterized in that the adjustment of the redox potential by adding from about 300 to 500 ppm Fe °, Fe² +, Fe³ + individually or in any combination plus 1 to 10 ppm, preferably 4 to 7 ppm phosphorus takes place in the form of phosphate ions.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2559374A DE2559374C2 (en) | 1975-12-31 | 1975-12-31 | Process for the wet-oxidative degradation of organic compounds in waste water |
DE2657377A DE2657377C2 (en) | 1975-12-31 | 1976-12-17 | Process for the wet-oxidative degradation of organic compounds in wastewater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2559374A DE2559374C2 (en) | 1975-12-31 | 1975-12-31 | Process for the wet-oxidative degradation of organic compounds in waste water |
DE2657377A DE2657377C2 (en) | 1975-12-31 | 1976-12-17 | Process for the wet-oxidative degradation of organic compounds in wastewater |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2657377A1 true DE2657377A1 (en) | 1978-06-29 |
DE2657377C2 DE2657377C2 (en) | 1982-10-21 |
Family
ID=32714396
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2559374A Expired DE2559374C2 (en) | 1975-12-10 | 1975-12-31 | Process for the wet-oxidative degradation of organic compounds in waste water |
DE2657377A Expired DE2657377C2 (en) | 1975-12-31 | 1976-12-17 | Process for the wet-oxidative degradation of organic compounds in wastewater |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2559374A Expired DE2559374C2 (en) | 1975-12-10 | 1975-12-31 | Process for the wet-oxidative degradation of organic compounds in waste water |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE2559374C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010713A1 (en) * | 1978-11-02 | 1980-05-14 | Bayer Ag | Process for the purification of waste water containing organic compounds of sulfur and phosphor |
DE4400243A1 (en) * | 1994-01-07 | 1995-07-13 | Bayer Ag | Process for the wet oxidative treatment of organic pollutants in waste water |
WO2012167297A1 (en) * | 2011-06-07 | 2012-12-13 | Walter Kanzler | Method for processing contaminated brine solutions for chlor-alkali electrolysis |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH649071A5 (en) * | 1978-11-13 | 1985-04-30 | Giuseppe Galassi | WET OXIDATION OF POLLUTANTS BY LIQUID OXYGEN. |
DE3316265A1 (en) * | 1982-07-31 | 1984-02-02 | Bayer Ag, 5090 Leverkusen | METHOD FOR WASTEWATER CLEANING |
DE3418934A1 (en) * | 1984-05-22 | 1985-11-28 | Sigri GmbH, 8901 Meitingen | GRAPHITE ELECTRODE FOR ARC FURNACES AND METHOD FOR THEIR PRODUCTION |
-
1975
- 1975-12-31 DE DE2559374A patent/DE2559374C2/en not_active Expired
-
1976
- 1976-12-17 DE DE2657377A patent/DE2657377C2/en not_active Expired
Non-Patent Citations (1)
Title |
---|
NICHTS-ERMITTELT * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010713A1 (en) * | 1978-11-02 | 1980-05-14 | Bayer Ag | Process for the purification of waste water containing organic compounds of sulfur and phosphor |
DE4400243A1 (en) * | 1994-01-07 | 1995-07-13 | Bayer Ag | Process for the wet oxidative treatment of organic pollutants in waste water |
WO2012167297A1 (en) * | 2011-06-07 | 2012-12-13 | Walter Kanzler | Method for processing contaminated brine solutions for chlor-alkali electrolysis |
CN103889906A (en) * | 2011-06-07 | 2014-06-25 | 沃尔特·坎茨勒 | Method for processing contaminated brine solutions for chlor-alkali electrolysis |
CN103889906B (en) * | 2011-06-07 | 2017-05-10 | 沃尔特·坎茨勒 | Method for processing contaminated brine solutions for chlor-alkali electrolysis |
Also Published As
Publication number | Publication date |
---|---|
DE2559374C2 (en) | 1982-10-21 |
DE2657377C2 (en) | 1982-10-21 |
DE2559374A1 (en) | 1977-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2930442A1 (en) | WASTEWATER TREATMENT METHOD | |
DE2637266A1 (en) | METHOD FOR OXYDATIVE WATER PURIFICATION | |
DE2657377A1 (en) | Wet oxidative degradation of organic substances - in effluents in which a redox potential is attained by addn. of iron and phosphorus in trace quantities | |
DE2827697A1 (en) | METHOD FOR STAINLESSING STAINLESS STEEL | |
CH639294A5 (en) | METHOD FOR PRODUCING A CLEAR CONDUCTIVE LAYER ON A SUBSTRATE. | |
DE1069403B (en) | ||
DE2352856B2 (en) | METHOD OF DETOXIFYING WASTE WATER CONTAINING CYANIDES AND / OR CYANHYDRINS AND / OR NITRILES | |
DE2407192A1 (en) | METHOD FOR MANUFACTURING COMPONENTS WITH A PALLADIUM PATTERN | |
DE2529647B2 (en) | Process for the purification of waste water from hydrazine production | |
EP0305769B1 (en) | Redox electrode for the determination of nitrous acid and nitrosyl compounds | |
DE2360706A1 (en) | METHOD FOR REGENERATION OF SULFUR ACID | |
DE2430501B2 (en) | Pickling process for metallic objects, in particular for the continuous treatment of strip or wire-shaped material, in particular made of stainless steel | |
EP0483568A1 (en) | Method of producing brown coating layers on copper | |
DE2007944C3 (en) | Process for the automatic control of the concentration of water-soluble oxidizing or reducing agents | |
DE2548945C2 (en) | Mainly austenitic alloy used as jacket material for electric tubular heating elements | |
DE69004556T2 (en) | Process for the pretreatment of activated carbon. | |
DE2356682B2 (en) | Process for the production of high purity nickel from stones containing nickel | |
DE1768667C3 (en) | Process for the preparation of o- or p-dinitrobenzene | |
DE2356710A1 (en) | PROCESS FOR MANUFACTURING HIGH PURITY NICKEL FROM SULFURIZED NICKEL CONCENTRATES. ADDITION: TO: 2225240 | |
DE955086C (en) | Process for improving the activity of fresh, unused catalysts made of platinum or palladium on alumina carriers | |
AT32291B (en) | Process for the production of homogeneous bodies from tantalum metal or other difficult-to-melt metals. | |
AT120830B (en) | Process for coating an electrically conductive body with platinum. | |
DE2023292A1 (en) | Lead dioxide coating formation on titanium anodes | |
DE19953218C2 (en) | Indicator electrode with a sensitive surface and use therefor | |
DE542784C (en) | Production of a hydrated manganese dioxide with a high catalytic effect |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
AF | Is addition to no. |
Ref country code: DE Ref document number: 2559374 Format of ref document f/p: P |
|
D2 | Grant after examination |