CN106582711A - Wastewater precipitation and purification method - Google Patents
Wastewater precipitation and purification method Download PDFInfo
- Publication number
- CN106582711A CN106582711A CN201611049112.1A CN201611049112A CN106582711A CN 106582711 A CN106582711 A CN 106582711A CN 201611049112 A CN201611049112 A CN 201611049112A CN 106582711 A CN106582711 A CN 106582711A
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- CN
- China
- Prior art keywords
- catalyst
- reaction tank
- wastewater
- mixed liquid
- settlement
- 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.)
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Classifications
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- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8906—Iron and noble metals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
Abstract
The invention discloses a wastewater precipitation and purification method. The method includes the following steps that wastewater is discharged into a reaction tank; lime powder is added into the reaction tank and stirred for 0.5-1 hour; still standing is conducted for 1 hour, the lime powder reacts with sulfate radicals, phosphate radicals, carbonate radicals, fluoride ions and the like in the reaction tank, and calcium precipitation dregs are obtained to adsorb dispersed oil in the wastewater; primary filtration is conducted on the reaction tank, the calcium precipitation dregs are discharged, and the pH value is regulated to 3.0-6.0; an oxidizing agent and a catalyst are added to a treating tank, the treating tank is pressurized and heated, stirring is conducted for 1 hour, the wastewater makes sufficient contact and reacts with the oxidizing agent and the catalyst, and a mixed liquid A is obtained; the pH value of the mixed liquid A is regulated to 8.0-9.0, and polyacrylamide is added to obtain a mixed liquid B; the mixed liquid B is stirred for 5 minutes at a constant speed, and still standing is conducted for precipitation. The catalyst contains precious metals, the activity is high, the service life is long, the COD removal rate is high, the dispersed oil and partial anions in the wastewater are effectively adsorbed and removed, and the desalinization effect is achieved.
Description
Technical field
The present invention relates to sewage disposal, specifically a kind of settlement of sewage purifying treatment method.
Background technology
With the fast development of industry, also mouth becomes serious to water environment pollution problem, especially the row such as medicine, chemical industry, dyestuff
The development of industry so that high concentration hard-degraded organic waste water is more and more, is a big difficult point of wastewater treatment；
In recent years, in the world developed country all attached great importance to develop the substitute technology of innovation, to scheme to improve treatment effeciency and drop
Reduction process expense；Then quickly with new vitality appearance, it can reduce the pressure and temperature required for reacting to CWO,
Accelerate reaction rate, so as to carry out extensively in states such as the U.S., mouth sheet, the European Community and in-depth study and exploitation；Substantial amounts of research
The noble metal catalyst series for showing have very high activity and stability in catalytic wet air oxidation processes waste water.
The content of the invention
It is an object of the invention to provide a kind of catalyst activity height, long service life, effectively COD clearances height, absorption
Dispersed oil, anionic part in waste water is removed, the settlement of sewage purifying treatment method of desalination is played, to solve above-mentioned background
The problem proposed in technology.
For achieving the above object, the present invention provides following technical scheme：
A kind of settlement of sewage purifying treatment method, comprises the following steps：1）, waste water entered in reaction tank；2）, in reaction tank
Input pulverized limestone, and stir 0.5-1 hours；3）, stand 1 hour, reaction tank sodalime powder and sulfate radical, phosphate radical, carbonate
Calcium precipitate slag, the dispersed oil in calcium precipitate slag absorption waste water are obtained with the reaction such as fluorine ion；4）, mistake for the first time is carried out to reaction tank
Filter, discharges calcium precipitate slag, and regulation pH value is 3.0-6.0；5）, in processing pond add oxidant, catalyst, to processing pond plus
Pressure, heating, stir 1 hour, and sewage is fully contacted, reacts with oxidant, catalyst, obtains mixed liquor A；6）By mixed liquor A
PH value is adjusted to 8.0-9.0, adds polyacrylamide, then is sufficiently mixed, and obtains mixed liquid B, wherein, in every 5L sewage, poly- third
Acrylamide is 1-2mg；7）Mixed liquid B is at the uniform velocity stirred 5 minutes, make coagulating fully, after staticly settling, supernatant is process
Water outlet；The catalyst is load metal carbonyl catalyst, and catalyst precarsor is one kind or its combination of carbonyl nail and carbonyl cobalt,
Add the second component Ce or Fe simultaneously, the carrier of catalyst is selected from activated carbon, γ-A1203, Ti02In one kind or its composite oxygen
Compound；The metallic element weight percentage of the catalyst is 0.1-5%, wherein, the weight percentage of noble metal Ru is
The weight percentage of 0.01-0.3%, Ce or Fe is 0.1-5%.
As further scheme of the invention：The carrier of catalyst is activated carbon, γ-A1203, Ti02Equal quality mixes
Composition.
As further scheme of the invention：The weight percentage of noble metal Ru is the weight hundred of 0.20%, Ce or Fe
Content is divided to be 3.5%.
As further scheme of the invention：Institute's carbonyl nail is followed closely for ten dicarbapentaborane three.
As further scheme of the invention：The carbonyl cobalt is cobalt octacarbonyl.
Compared with prior art, the invention has the beneficial effects as follows：
In the present invention, with the light Base Metal of the load of high dispersive as catalyst, bullion content is very low in catalyst, and activity is high, make
With life-span length, high temperature resistant, hyperbaric environment, it is adaptable to which the process of various different high concentrated organic wastewaters, reaction condition is gentleer,
COD clearances are high；
To feeding lime in waste water in the present invention, combine with sulfate radical, phosphate radical, carbonate and fluorine ion etc. and generate calcium precipitate slag
As adsorbent, not only can dispersed oil effectively in Adsorption waste water, reduce COD, COD can be down to 100mg/L, and
Successfully anionic part is removed, desalination is served, is processed without the need for initial adsorbent material regeneration.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
A kind of settlement of sewage purifying treatment method, comprises the following steps：1）, waste water entered in reaction tank；2）, to reaction
Pulverized limestone is put in pond, and stirs 0.5-1 hours；3）, stand 1 hour, reaction tank sodalime powder and sulfate radical, phosphate radical, carbon
The reaction such as acid group and fluorine ion obtains calcium precipitate slag, the dispersed oil in calcium precipitate slag absorption waste water；4）, reaction tank carried out for the first time
Filter, discharge calcium precipitate slag, regulation pH value is 3.0-6.0；5）, in processing pond add oxidant, catalyst, to processing pond plus
Pressure, heating, stir 1 hour, and sewage is fully contacted, reacts with oxidant, catalyst, obtains mixed liquor A；6）By mixed liquor A
PH value is adjusted to 8.0-9.0, adds polyacrylamide, then is sufficiently mixed, and obtains mixed liquid B, wherein, in every 5L sewage, poly- third
Acrylamide is 1-2mg；7）Mixed liquid B is at the uniform velocity stirred 5 minutes, make coagulating fully, after staticly settling, supernatant is process
Water outlet；The catalyst is load metal carbonyl catalyst, and catalyst precarsor is one kind or its combination of carbonyl nail and carbonyl cobalt,
Add the second component Ce or Fe simultaneously, the carrier of catalyst is selected from activated carbon, γ-A1203, Ti02In one kind or its composite oxygen
Compound；The metallic element weight percentage of the catalyst is 0.1-5%, wherein, the weight percentage of noble metal Ru is
The weight percentage of 0.01-0.3%, Ce or Fe is 0.1-5%；Wherein, institute's carbonyl nail is followed closely for ten dicarbapentaborane three, and carbonyl cobalt is
Cobalt octacarbonyl.
In the present invention, with the light Base Metal of the load of high dispersive as catalyst, bullion content is very low in catalyst, activity
High, long service life, high temperature resistant, hyperbaric environment, it is adaptable to the process of various different high concentrated organic wastewaters, reaction condition temperature
With COD clearances are high；
To feeding lime in waste water in the present invention, combine with sulfate radical, phosphate radical, carbonate and fluorine ion etc. and generate calcium precipitate slag
As adsorbent, not only can dispersed oil effectively in Adsorption waste water, reduce COD, COD can be down to 100mg/L, and
Successfully anionic part is removed, desalination is served, is processed without the need for initial adsorbent material regeneration.
The better embodiment of 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 be with the premise of without departing from this patent objective
Make a variety of changes.
Claims (5)
1. a kind of settlement of sewage purifying treatment method, it is characterised in that comprise the following steps：1）, waste water entered in reaction tank；
2）, put into in reaction tank pulverized limestone, and stir 0.5-1 hours；3）, stand 1 hour, reaction tank sodalime powder and sulfate radical,
The reaction such as phosphate radical, carbonate and fluorine ion obtains calcium precipitate slag, the dispersed oil in calcium precipitate slag absorption waste water；4）, to reaction
Pond is filtered for the first time, discharges calcium precipitate slag, and regulation pH value is 3.0-6.0；5）, in processing pond add oxidant, catalyst,
To processing pond pressurization, heating, stir 1 hour, sewage is fully contacted, reacts with oxidant, catalyst, obtains mixed liquor A；6）Will
The pH value of mixed liquor A is adjusted to 8.0-9.0, adds polyacrylamide, then is sufficiently mixed, and obtains mixed liquid B, wherein, it is dirty per 5L
In water, polyacrylamide is 1-2mg；7）Mixed liquid B is at the uniform velocity stirred 5 minutes, make coagulating fully, after staticly settling, on
Clear liquid is process water outlet；The catalyst is load metal carbonyl catalyst, and catalyst precarsor is the one of carbonyl nail and carbonyl cobalt
Plant or its combination, while adding the second component Ce or Fe, the carrier of catalyst is selected from activated carbon, γ-A1203, Ti02In one
Plant or its composite oxides；The metallic element weight percentage of the catalyst is 0.1-5%, wherein, the weight of noble metal Ru
It is 0.1-5% that percentage composition is the weight percentage of 0.01-0.3%, Ce or Fe.
2. settlement of sewage purifying treatment method according to claim 1, it is characterised in that the carrier of catalyst is activity
Charcoal, γ-A1203, Ti02Equal quality mixing composition.
3. settlement of sewage purifying treatment method according to claim 1, it is characterised in that the weight percent of noble metal Ru contains
Measure for 0.20%, Ce or Fe weight percentage be 3.5%.
4. settlement of sewage purifying treatment method according to claim 1, it is characterised in that institute's carbonyl nail is ten dicarbapentaborane three
Nail.
5. settlement of sewage purifying treatment method according to claim 1, it is characterised in that the carbonyl cobalt is eight carbonyls two
Cobalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049112.1A CN106582711A (en) | 2016-11-25 | 2016-11-25 | Wastewater precipitation and purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049112.1A CN106582711A (en) | 2016-11-25 | 2016-11-25 | Wastewater precipitation and purification method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106582711A true CN106582711A (en) | 2017-04-26 |
Family
ID=58593194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049112.1A Withdrawn CN106582711A (en) | 2016-11-25 | 2016-11-25 | Wastewater precipitation and purification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106582711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763575A (en) * | 2020-06-19 | 2020-10-13 | 武汉工程大学 | Detergent composition not resistant to calcium and magnesium ions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070278158A1 (en) * | 2006-06-01 | 2007-12-06 | Green Shelter Innovations Limited | Wastewater treatment system and method |
| CN102101053A (en) * | 2009-12-18 | 2011-06-22 | 中国科学院兰州化学物理研究所 | Catalyst for treating organic wastewater and preparation method thereof |
| CN103373757A (en) * | 2013-07-10 | 2013-10-30 | 上海睿优环保工程技术有限公司 | Method for treating nondegradable organic wastewater by oxidation by transition metal catalyst |
| CN105198139A (en) * | 2015-10-22 | 2015-12-30 | 北京赛科康仑环保科技有限公司 | Hydrometallurgy industry raffinate waste water COD removal method |
-
2016
- 2016-11-25 CN CN201611049112.1A patent/CN106582711A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070278158A1 (en) * | 2006-06-01 | 2007-12-06 | Green Shelter Innovations Limited | Wastewater treatment system and method |
| CN102101053A (en) * | 2009-12-18 | 2011-06-22 | 中国科学院兰州化学物理研究所 | Catalyst for treating organic wastewater and preparation method thereof |
| CN103373757A (en) * | 2013-07-10 | 2013-10-30 | 上海睿优环保工程技术有限公司 | Method for treating nondegradable organic wastewater by oxidation by transition metal catalyst |
| CN105198139A (en) * | 2015-10-22 | 2015-12-30 | 北京赛科康仑环保科技有限公司 | Hydrometallurgy industry raffinate waste water COD removal method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763575A (en) * | 2020-06-19 | 2020-10-13 | 武汉工程大学 | Detergent composition not resistant to calcium and magnesium ions |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170426 |
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| WW01 | Invention patent application withdrawn after publication |