CN101468843A - Processing method for organotin wastewater containing high concentration chloride - Google Patents
Processing method for organotin wastewater containing high concentration chloride Download PDFInfo
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- CN101468843A CN101468843A CNA2008100588484A CN200810058848A CN101468843A CN 101468843 A CN101468843 A CN 101468843A CN A2008100588484 A CNA2008100588484 A CN A2008100588484A CN 200810058848 A CN200810058848 A CN 200810058848A CN 101468843 A CN101468843 A CN 101468843A
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Abstract
The invention relates to a method for treating organic tin wastewater containing organic substances and high-concentration chlorates. The method comprises: under conditions of intermediate temperate and pressure, passing oxygen through and adding a catalyst in the waste water for oxygenolysis and removal of the organic substances in the wastewater; concentrating and crystallizing a filtrate obtained after filtration; and recovering the chlorates. The method carries out oxygenolysis of the organic substances, solves the problem of environment pollution of the organic wastewater and effectively recovers the chlorates.
Description
Technical field
The invention belongs to a kind of treatment process that contains the organotin wastewater of hardly degraded organic substance and high concentration chloride.
Background technology
The treatment process of organic waste water mainly contains biological treatment, method of chemical treatment, physicochemical treatment method, physical treatment process etc.For the improvement of high concentrated organic wastewater, above-mentioned often two or three method is carried out comprehensive treating process.
Chemical method mainly adopts strong oxidizer to handle organic waste water, and strong oxidizer commonly used has ozone, potassium permanganate, chlorine etc.When adopting the ozone chemistry oxidation, in view of the Power Limitation of present ozonizer, ozone concn is lower, and most cases is to adopt in the processing of low-concentration organic waste water.Adopt oxidizer treatment organic waste waters such as potassium permanganate, chlorine, can handle the waste water of high-enriched organics, but the raw materials cost height, and introduced new impurity, increased the intractability in later stage.
The physics method mainly adopts isolating mode to handle organic waste water, be usually used on the treatment of Organic Wastewater to have membrane filtration and charcoal absorption, ultrasonic wave to remove separating of oil etc.Membrane filter method is handled organic waste water, can be effectively that organism is rich long-pending, and organic rejection height.But do not have finally to solve the problem that organism exists, rich long-pending organism also needs to be further processed.After charcoal absorption removes organism, need be to gac burning disposal or manipulation of regeneration.The ultrasonic wave oil eliminator is mainly used in removing of a large amount of organic waste water low-concentration organics, and the organism after the absorption is difficult to separate from fibrous nodules, cause fibrous nodules to clean difficulty, and the organism after separating also needs to be further processed.
Summary of the invention
Technical problem to be solved by this invention provides a kind of treatment process that contains the high concentration chloride organotin wastewater, can fast organism be carried out oxidation and remove, and does not introduce new impurity in oxidising process, thereby helps the recovery of villaumite, and processing cost is low.
Technical scheme of the present invention is: in pressurized vessel, and aerating oxygen, the pressurization of heating adds catalyzer, the organism in the waste water is carried out oxygenolysis remove, and the filtrate filtered condensing crystal reclaims villaumite.
Concrete processing method is as follows:
Under 100 ℃～150 ℃ condition, add the catalyzer of 3g/L～10g/L, aerating oxygen is under the condition of 1.0MPa～3.0MPa in the still internal pressure, reaction 30min～90min, oxide treatment organotin wastewater.Reacted solution is filtered, catalyzer reuse in the filter residue, and filtrate concentrating reclaimed villaumite.
The organotin wastewater of suitable treatment of the present invention mainly contains 15%～25% villaumite and the organism (being mainly thiol esters and organotin etc.) of 250mg/L～3000mg/L, and its color is purplish red, the foul smelling smell, the organic content height, the chloride content height is difficult to handle with biodegradable method.Catalyzer in the described oxidizing reaction adopts gac, and the oxygen that feeds during reaction adopts oxygen level greater than 93% industrial oxygen.
After waste water carried out oxygenolysis, the filter residue main component of filtering gained was a catalyzer, can return in the oxidizing reaction operation to recycle.
The present invention has following advantage and effect:
Under the medium temperature and medium pressure of the chemical reaction of routine, aerating oxygen has improved oxygen and has pressed and oxidation rate, organism can be carried out oxidation at short notice and remove.Because oxygen is not introduced new impurity in oxidising process, can the recovery of villaumite not impacted; And catalyzer only plays catalytic effect in reaction, do not participate in reaction, can use repeatedly, and the processing costs of waste water is reduced greatly.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1: gets the organotin wastewater that the 3L organic content is 2812mg/L, adds in the autoclave, add the 30g catalyzer, open and stir, open heating, when temperature reaches 90 ℃, begin logical oxygen, and under 200 ℃ of temperature, reaction 90min.Reaction finishes, and closes into oxygen valve, closes heating, the release blowing, and feed liquid adopts 100 order stainless steel meshs to carry out prefiltration, and the prefiltration slag returns use, the filtrate vacuum filtration, the suction filtration slag muck is deposited.Organic content 10.69mg/L in the filtrate by calculating organic removal rate 99.62%, reclaims villaumite in the suction filtration.
Embodiment 2: gets the organotin wastewater that the 3L organic content is 996mg/L, adds in the autoclave, add 20g example 1 and reclaim the gained catalyzer, open and stir, open heating, when temperature reaches 90 ℃, begin logical oxygen, and under 150 ℃ of temperature, reaction 60min.Reaction finishes, and closes into oxygen valve, closes heating, the release blowing, and feed liquid adopts 100 order stainless steel meshs to carry out prefiltration, and the prefiltration slag returns use, the filtrate vacuum filtration, the suction filtration slag muck is deposited.Organic content 8.86mg/L in the filtrate by calculating organic removal rate 99.11%, reclaims villaumite in the suction filtration.
Embodiment 3: get the organotin wastewater that the 3L organic content is 227mg/L, add in the autoclave, add 10g example 2 and reclaim the gained catalyzer, open and stir, open heating, when temperature reaches 30 ℃, begin logical oxygen, under 100 ℃ of temperature, reacted 1 hour.Reaction finishes, and closes into oxygen valve, closes heating, the release blowing, and feed liquid adopts 100 order stainless steel meshs to carry out prefiltration, and the prefiltration slag returns use, the filtrate vacuum filtration, the suction filtration slag muck is deposited.Organic content is 2.19mg/L in the suction filtration liquid, by calculating organic removal rate 99.04%, reclaims villaumite in the suction filtration.
Claims (4)
1. treatment process that contains the high concentration chloride organotin wastewater is characterized in that: in pressurized vessel, and aerating oxygen, the pressurization of heating adds catalyzer, the organism in the waste water is carried out oxygenolysis remove, and the filtrate filtered condensing crystal reclaims villaumite.
2. the treatment process that contains the high concentration chloride organotin wastewater as claimed in claim 1 is characterized in that: 1. oxygen pressure temperature of reaction is 100 ℃～200 ℃; 2. oxygen pressure reaction pressure is 1.0MPa～3.0Mpa; 3. the oxygen pressure reaction times is 30min～90min; 4. oxygen presses reaction to add the catalyzer of 3g/L～10g/L; 5. oxygen presses reaction to make oxidation operation decompose clearance 〉=99%.
3, the treatment process that contains the high concentration chloride organotin wastewater as claimed in claim 2 is characterized in that: the processed high concentration chloride organotin wastewater that contains is, contains 15%～25% villaumite and the organism of 250mg/L～3000mg/L; Catalyzer adopts gac, and the oxygen of feeding adopts oxygen level greater than 93% industrial oxygen.
4, the treatment process that contains the high concentration chloride organotin wastewater as claimed in claim 3 is characterized in that: after described waste water carried out oxygenolysis, the catalyzer filter residue that contains that filters gained recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100588484A CN101468843A (en) | 2008-08-26 | 2008-08-26 | Processing method for organotin wastewater containing high concentration chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100588484A CN101468843A (en) | 2008-08-26 | 2008-08-26 | Processing method for organotin wastewater containing high concentration chloride |
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| Publication Number | Publication Date |
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| CN101468843A true CN101468843A (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100588484A Pending CN101468843A (en) | 2008-08-26 | 2008-08-26 | Processing method for organotin wastewater containing high concentration chloride |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889906A (en) * | 2011-06-07 | 2014-06-25 | 沃尔特·坎茨勒 | Method for processing contaminated brine solutions for chlor-alkali electrolysis |
-
2008
- 2008-08-26 CN CNA2008100588484A patent/CN101468843A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Open date: 20090701 |