CN106477777A - A kind of wastewater toxicity Processing for removing method - Google Patents
A kind of wastewater toxicity Processing for removing method Download PDFInfo
- Publication number
- CN106477777A CN106477777A CN201611049539.1A CN201611049539A CN106477777A CN 106477777 A CN106477777 A CN 106477777A CN 201611049539 A CN201611049539 A CN 201611049539A CN 106477777 A CN106477777 A CN 106477777A
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- sewage
- catalyst
- removing method
- liquid
- oxidant
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- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of wastewater toxicity Processing for removing method, comprises the following steps：1）, sewage, catalyst, the first oxidant carried out mixed processing, treatment temperature is 50 80 DEG C, and process time is 13 hours；2）, the sewage after first process carried out separation of solid and liquid, and pH value is adjusted to 8 10；3）, by the liquid after separation under the pressure of 0.2 1.6MPa of pressure, be heated to 110 150 DEG C, insert catalyst, the second oxidant, 15 hours reaction time；4）, separation of solid and liquid is carried out to the sewage of after-treatment；In the present invention, catalyst possesses the feature of voluntarily regeneration and anti-deactivation, cost-effective, has given full play to the synergy of high-temperature oxydation and catalysis oxidation, has effectively reduced the COD value of sewage, good sewage processing effect.
Description
Technical field
The present invention relates to wastewater treatment, specifically a kind of wastewater toxicity Processing for removing method.
Background technology
As the fast development of China's industry, water consumption rise year by year, the improvement day of water resources quantity shows important.Molecular sieve is
Important chemical catalyst active component, with the development of chemical industry, its demand increasingly increases, but the production of molecular sieve
Process needs to consume substantial amounts of water, and molecular sieve water consumption per ton is about 100 tons of water, and wherein about 30% sewage belongs to high COD sewage
(it is generally acknowledged that reaching more than I000mg/L for high COD sewage), thus limit the development of molecular sieve industry.
Increasingly strict with environmental requirement, China molecular sieve production industry just progressively to cleaning the transition of environmental protection direction,
And maximum of which difficult point is that the improvement of the sewage produced in molecular sieve production；The method of COD sewage is administered both at home and abroad relatively
Many, what application was wider mainly has Fenton process, photocatalytic method, biological degradation method etc..
Content of the invention
It is an object of the invention to provide a kind of cost-effective, the collaboration for having given full play to high-temperature oxydation with catalysis oxidation is made
With, effectively reduce the wastewater toxicity Processing for removing method of the COD value of sewage, with solve in above-mentioned background technology propose ask
Topic.
For achieving the above object, the present invention provides following technical scheme：
A kind of wastewater toxicity Processing for removing method, comprises the following steps：1）, sewage, catalyst, the first oxidant are mixed
Process, treatment temperature is 50-80 DEG C, process time is 1-3 hour；2）, the sewage after first process carried out separation of solid and liquid, and
PH value is adjusted to 8-10；3）, by the liquid after separation under the pressure of pressure 0.2-1.6MPa, be heated to 110-150 DEG C, add
Enter catalyst, the second oxidant, reaction time 1-5 hour；4）, separation of solid and liquid is carried out to the sewage of after-treatment；The catalysis
Agent is prepared and is comprised the following steps：1）, by weight ratio by the mixing of 4 parts of reduced iron powders, 4 parts of kaolin and 1.5 parts of microcrystalline glass powders,
Dry to constant weight, mill and be crushed to below 100 mesh, obtain product A；2）By active colloidal solvent with product A according to volume ratio 15:
100 ratio mixing, moral feed particles B；3）, by feed particles B under the protection of inert gas, in 800-900 DEG C of high temperature
Sintering activation 1-2 hour, is subsequently cooled to room temperature, and particle polishing is obtained catalyst.
As the further scheme of the present invention：The active colloidal solvent composition is：PAMA 800-
1200mg, Cu2+300-500mg,Ni2+300-500mg, water constant volume are 1L, and pH value is adjusted to 2.5-3.5.
As the present invention further scheme：First oxidant, the second oxidant be each independently selected from hydrogen peroxide,
One or more in ozone, sodium hypochlorite, postassium hypochlorite, chlorine dioxide and chlorine.
As the present invention further scheme：In step 3, by the liquid after separation pressure 0.2-1.6MPa pressure
Under, it is heated to 135 DEG C.
As the present invention further scheme：In step 3,3 hours reaction time.
Compared with prior art, the invention has the beneficial effects as follows：
In the present invention, catalyst has the characteristics that with strong points, high catalytic efficiency, under optimum conditions in TNT production waste water
TNT clearance can reach 96.9-99.9%, and catalyst possesses the feature of voluntarily regeneration and anti-deactivation, can make repeatedly
With, processing cost is saved, catalyst raw material wide material sources, preparation cost are low；
In the present invention, high-temperature oxydation is combined with catalysis oxidation, has given full play to the association of high-temperature oxydation and catalysis oxidation
Same-action, effectively reduces the COD value of sewage, and according to the data of embodiment, the COD clearance of sewage can reach 97%,
And the method provided according to the present invention, the COD value of the sewage after process can reach industrial discharge standard, wastewater treatment efficiency
Good.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
A kind of wastewater toxicity Processing for removing method, comprises the following steps：1）, sewage, catalyst, the first oxidant are carried out
Mixed processing, treatment temperature are 50-80 DEG C, and process time is 1-3 hour；2）, the sewage after first process carried out solid-liquid divide
From, and pH value is adjusted to 8-10；3）, by the liquid after separation under the pressure of pressure 0.2-1.6MPa, be heated to 110-150
DEG C, insert catalyst, the second oxidant, reaction time 1-5 hour；4）, separation of solid and liquid is carried out to the sewage of after-treatment；Described
Catalyst preparation is comprised the following steps：1）, by weight ratio by 4 parts of reduced iron powders, 4 parts of kaolin and 1.5 parts of microcrystalline glass powders
Mixing, dries to constant weight, mills and be crushed to below 100 mesh, obtain product A；2）By active colloidal solvent with product A according to volume
Than 15:100 ratio mixing, moral feed particles B；3）, by feed particles B under the protection of inert gas, at 800-900 DEG C
High temperature sintering activates 1-2 hour, is subsequently cooled to room temperature, and particle polishing is obtained catalyst；The active colloidal solvent composition
For：PAMA 800-1200mg, Cu2+300-500mg,Ni2+300-500mg, water constant volume are 1L, and pH value is adjusted
For 2.5-3.5；First oxidant, the second oxidant be each independently selected from hydrogen peroxide, ozone, sodium hypochlorite, postassium hypochlorite,
One or more in chlorine dioxide and chlorine；
In the present invention, catalyst has the characteristics that with strong points, high catalytic efficiency, under optimum conditions in TNT production waste water
TNT clearance can reach 96.9-99.9%, and catalyst possesses the feature of voluntarily regeneration and anti-deactivation, can make repeatedly
With, processing cost is saved, catalyst raw material wide material sources, preparation cost are low；
In the present invention, high-temperature oxydation is combined with catalysis oxidation, has given full play to the association of high-temperature oxydation and catalysis oxidation
Same-action, effectively reduces the COD value of sewage, and according to the data of embodiment, the COD clearance of sewage can reach 97%,
And the method provided according to the present invention, the COD value of the sewage after process can reach industrial discharge standard, wastewater treatment efficiency
Good.
Better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of without departing from this patent objective
Make a variety of changes.
Claims (5)
1. a kind of wastewater toxicity Processing for removing method, it is characterised in that comprise the following steps：1）, by sewage, catalyst, first
Oxidant carries out mixed processing, and treatment temperature is 50-80 DEG C, and process time is 1-3 hour；2）, by the sewage after first process
Separation of solid and liquid is carried out, and pH value is adjusted to 8-10；3）, by the liquid after separation under the pressure of pressure 0.2-1.6MPa, plus
Heat arrives 110-150 DEG C, inserts catalyst, the second oxidant, reaction time 1-5 hour；4）, the sewage of after-treatment is carried out solid
Liquid is separated；The catalyst preparation is comprised the following steps：1）, by weight ratio by 4 parts of reduced iron powders, 4 parts of kaolin and 1.5 parts
Microcrystalline glass powder mixes, and dries to constant weight, mills and be crushed to below 100 mesh, obtains product A；2）By active colloidal solvent and product
Thing A is according to volume ratio 15:100 ratio mixing, moral feed particles B；3）, by feed particles B under the protection of inert gas,
1-2 hour is activated in 800-900 DEG C of high temperature sintering, room temperature is subsequently cooled to, particle polishing is obtained catalyst.
2. wastewater toxicity Processing for removing method according to claim 1, it is characterised in that the active colloidal solvent composition
For：PAMA 800-1200mg, Cu2+300-500mg,Ni2+300-500mg, water constant volume are 1L, and pH value is adjusted
For 2.5-3.5.
3. wastewater toxicity Processing for removing method according to claim 1, it is characterised in that first oxidant, second
Oxidant is each independently selected from one or more in hydrogen peroxide, ozone, sodium hypochlorite, postassium hypochlorite, chlorine dioxide and chlorine.
4. wastewater toxicity Processing for removing method according to claim 1, it is characterised in that in step 3, by the liquid after separation
Body is heated to 135 DEG C under the pressure of pressure 0.2-1.6MPa.
5. wastewater toxicity Processing for removing method according to claim 1, it is characterised in that in step 3, the reaction time 3 is little
When.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049539.1A CN106477777A (en) | 2016-11-25 | 2016-11-25 | A kind of wastewater toxicity Processing for removing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049539.1A CN106477777A (en) | 2016-11-25 | 2016-11-25 | A kind of wastewater toxicity Processing for removing method |
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| Publication Number | Publication Date |
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| CN106477777A true CN106477777A (en) | 2017-03-08 |
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| CN201611049539.1A Withdrawn CN106477777A (en) | 2016-11-25 | 2016-11-25 | A kind of wastewater toxicity Processing for removing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314970A (en) * | 2022-01-17 | 2022-04-12 | 天津大学 | Method for reducing COD value in high-salinity wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070104859A1 (en) * | 2005-05-10 | 2007-05-10 | Michael Featherby | Coating for environmental protection and indication |
| CN101967316A (en) * | 2010-09-08 | 2011-02-09 | 中国乐凯胶片集团公司 | Nontoxic antifouling paint for oceanographic ship and facilities and method for preparing paint |
| CN103787537A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | Sewage processing method and application thereof |
| CN104128206A (en) * | 2014-07-29 | 2014-11-05 | 中国万宝工程公司 | Preparation method and application of toxicity eliminating catalyst for TNT wastewater |
-
2016
- 2016-11-25 CN CN201611049539.1A patent/CN106477777A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070104859A1 (en) * | 2005-05-10 | 2007-05-10 | Michael Featherby | Coating for environmental protection and indication |
| CN101967316A (en) * | 2010-09-08 | 2011-02-09 | 中国乐凯胶片集团公司 | Nontoxic antifouling paint for oceanographic ship and facilities and method for preparing paint |
| CN103787537A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | Sewage processing method and application thereof |
| CN104128206A (en) * | 2014-07-29 | 2014-11-05 | 中国万宝工程公司 | Preparation method and application of toxicity eliminating catalyst for TNT wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314970A (en) * | 2022-01-17 | 2022-04-12 | 天津大学 | Method for reducing COD value in high-salinity wastewater |
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Application publication date: 20170308 |