CN108975613A - A kind of process for treating industrial waste water - Google Patents
A kind of process for treating industrial waste water Download PDFInfo
- Publication number
- CN108975613A CN108975613A CN201810832075.4A CN201810832075A CN108975613A CN 108975613 A CN108975613 A CN 108975613A CN 201810832075 A CN201810832075 A CN 201810832075A CN 108975613 A CN108975613 A CN 108975613A
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- waste water
- pool
- water
- hydrolysis
- tank
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of process for treating industrial waste water, and by Wastewater Pretreatment, industrial wastewater is discharged into grille well, flow to conditioning tank certainly after bulky grain suspended matter in grille well filtered wastewater；Waste water pump in conditioning tank is mentioned to level-one anaerobic reation pool, waste water carries out one-stage hydrolysis processing, then waste water is promoted to secondary anaerobic reaction tank with pump and carries out second level hydrolysis process by the waste water after hydrolysis process from intermediate pool, uniform water quality and quantity is flow to；Water outlet after secondary anaerobic reaction tank hydrolysis process carries out mud-water separation from secondary settling tank is flow to, and secondary clarifier effluent gravity flow enters contact-oxidation pool, by the way that under blast aeration oxygenation, waste water is thoroughly mixed with air；Contact-oxidation pool water outlet enters carbon filtering pool, water discharge up to standard through final deposition pool mud-water separation, by final deposition pool water outlet gravity flow.The present invention is heated using conditioning tank waste water by steam, and waste water hydrolysis acidification reaction rate in anaerobic waste water hydrolysis process is improved, and keeps waste water hydrolysis acidification speed faster more abundant.
Description
Technical field
The present invention relates to a kind of technical field of waste water processing more particularly to a kind of process for treating industrial waste water.
Background technique
With the fast development of urbanization and modern industry, the discharge amounts such as all types of industries waste water increasingly increase, under the pressure of ecology
Environmental pressure, all kinds of waste water treatment process have also obtained faster development, in recent years, with the rapid development of industrial or agricultural, especially
It is that the scale of the factory of production polyester plastics goes from strength to strength, and causes industrial water consumption increase；Meanwhile corresponding disposal of pollutants
Amount is also increasing year by year, and is resulted in water source and is generally contaminated, water quality deterioration.
Summary of the invention
That in view of the deficiencies of the prior art, the present invention provides a kind of operating costs is low, easy to operate, treatment effeciency is high, water
Solution acidification reaction rate is fast and abundant, drains process for treating industrial waste water up to standard.
Its technical scheme applied to solve the technical problem is: a kind of process for treating industrial waste water, including following sequence work
Skill step and condition:
Step 1: Wastewater Pretreatment, industrial wastewater are discharged into grille well, flow automatically after bulky grain suspended matter in grille well filtered wastewater
To conditioning tank, conditioning tank waste water pH value is adjusted to 6~8, influent load is 0~5000mg/L, uniform water quality and quantity；
Step 2: anaerobic waste water hydrolysis process is inoculated with and tames anaerobe in anaerobic hydrolysis processing stage, and to filler
Nutritional agents is added, the waste water pump in conditioning tank is promoted to level-one anaerobic reation pool, under anaerobic, passes through the micro- life of anaerobism
Object effect, waste water carry out one-stage hydrolysis processing, then the waste water after hydrolysis process will from intermediate pool, uniform water quality and quantity is flow to
Waste water is promoted to secondary anaerobic reaction tank with pump and carries out second level hydrolysis process；
Step 3: the processing of waste water oxidation and aeration, the water outlet after secondary anaerobic reaction tank hydrolysis process flow to secondary settling tank certainly
Mud-water separation is carried out, secondary clarifier effluent gravity flow enters contact-oxidation pool, and alkaline material is added in contact-oxidation pool and adjusts waste water
PH value is to 6.5~8.5, by the way that under blast aeration oxygenation, waste water is thoroughly mixed with air, is acted on through aerobic microbiological
By in waste water organic pollutant and suspended particle absorbing control and degradation, the contact-oxidation pool dissolved oxygen be 2~4mg/L；
Step 4: water discharge up to standard, contact-oxidation pool water outlet precipitate the partial suspended thing in waste water through final deposition pool mud-water separation,
Final deposition pool water outlet gravity flow is entered into carbon filtering pool, further adsorbs organic matter and suspended particulate matter concentration in waste water, water row up to standard
It puts；
Step 5: Treatment of Sludge will be remaining by final deposition pool major part sludge reflux contact-oxidation pool into step 3 in step 4
Sludge pump in sludge-tank is promoted to sludge filter press, progress sludge concentration and dewatering processing will to sludge-tank by mud discharging
Supernatant in sludge filter press is back to conditioning tank in step 1, outside the dewatered sludge after dehydration in sludge filter press
Fortune processing.
Preferably, the conditioning tank waste water in the step 1 is by being steam heated to 30~45 DEG C.
Preferably, the nutritional agents in the step 2 is nitrogen class, Phosphorus, white sugar and flour.
Preferably, acidification is hydrolyzed to waste water in the anaerobic hydrolysis processing in the step 2.
Preferably, to useless between the mud-water separation processing and the processing of waste water oxidation and aeration of secondary settling tank in the step 3
Water carries out and oxygen processing.
Preferably, as COD higher in contact-oxidation pool waste water, powder is added in contact-oxidation pool in the step 3
Last active carbon, Powdered Activated Carbon and COD are mixed by adsorbance ratio 1:1~20.
Preferably, the Powdered Activated Carbon is nanometer powder active carbon.
Preferably, the alkaline material in the step 3 is pulverized limestone and/or liquid alkaline.
Preferably, when temperature is higher than 35 DEG C, bactericidal agent is added in contact-oxidation pool in the step three
And/or detergent and/or ammonium salt.
Preferably, the bactericidal agent is bleaching powder and/or alum.
Acidification is hydrolyzed to waste water the invention has the advantages that handling by using anaerobic hydrolysis, is greatly improved
Anaerobic waste water hydrolysis process efficiency；Conditioning tank waste water can greatly improve waste water in waste water by being steam heated to 30~45 DEG C
Hydrolysis acidification reaction rate in anaerobic hydrolysis processing, so that waste water hydrolysis acidification speed is faster more abundant；In contact-oxidation pool
Add Powdered Activated Carbon, Powdered Activated Carbon and COD by adsorbance ratio 1:1~20 mix, the huge surface area of Powdered Activated Carbon and
Its very strong adsorption capacity, improves adsorption capacity, improves the degradation removal rate of COD, can achieve defined discharge standard,
And operating cost is low；Powdered Activated Carbon is nanometer powder active carbon, further improves the degradation removal rate of COD；In contact oxygen
Change in pond and add alkaline material, PH is too low after preventing waste water to be aerated for a long time, guarantees the stabilization of aerobic sludge；In contact-oxidation pool
Add bactericidal agent and/or detergent and/or ammonium salt, it is ensured that the effect of waste water oxidation and aeration processing connects in summer
When touching oxidation pond waste water temperature is higher, suitable ammonium salt is added, a large amount of heat in waste water can be absorbed, it is useless to reduce contact-oxidation pool
Coolant-temperature gage, can be effectively prevented leads to the generation of Filamentous Bulking because waste water temperature is excessively high, controls der Pilz dirt
The expansion of mud guarantees the effect of waste water oxidation and aeration processing, meanwhile, ammonium salt is playing reduction contact-oxidation pool waste water temperature
Except, also there is bactericidal effect, contact-oxidation pool waste water can be sterilized, it is convenient to bring to operating procedure, operation side
Just and cost has been saved, polyester plastics Industrial Wastewater Treatment effect is good；The mud-water separation processing and waste water oxidation of secondary settling tank
Waste water is carried out between Air Exposure and oxygen is handled, wastewater toxicity effect is effectively reduced, the impact reduced to contact-oxidation pool is negative
Lotus；Carbon filtering pool is set, organic matter and suspended particulate matter concentration in waste water, water discharge up to standard are further adsorbed.
Detailed description of the invention
Fig. 1 is process for treating industrial waste water flow chart of the invention.
Specific embodiment
The present invention is described in further details below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, process for treating industrial waste water flow chart of the invention, a kind of process for treating industrial waste water, including with
Lower processing steps in sequence and condition:
Step 1: Wastewater Pretreatment, industrial wastewater are discharged into grille well, flow automatically after bulky grain suspended matter in grille well filtered wastewater
To conditioning tank, conditioning tank waste water pH value is adjusted to 6~8, influent load is 0~5000mg/L, uniform water quality and quantity；
Step 2: anaerobic waste water hydrolysis process is inoculated with and tames anaerobe in anaerobic hydrolysis processing stage, and to filler
Nutritional agents is added, the waste water pump in conditioning tank is promoted to level-one anaerobic reation pool, under anaerobic, passes through the micro- life of anaerobism
Object effect, waste water carry out one-stage hydrolysis processing, then the waste water after hydrolysis process will from intermediate pool, uniform water quality and quantity is flow to
Waste water is promoted to secondary anaerobic reaction tank with pump and carries out second level hydrolysis process；
Step 3: the processing of waste water oxidation and aeration, the water outlet after secondary anaerobic reaction tank hydrolysis process flow to secondary settling tank certainly
Mud-water separation is carried out, secondary clarifier effluent gravity flow enters contact-oxidation pool, and alkaline material is added in contact-oxidation pool and adjusts waste water
PH value is to 6.5~8.5, by the way that under blast aeration oxygenation, waste water is thoroughly mixed with air, is acted on through aerobic microbiological
By in waste water organic pollutant and suspended particle absorbing control and degradation, the contact-oxidation pool dissolved oxygen be 2~4mg/L；
Step 4: water discharge up to standard, contact-oxidation pool water outlet precipitate the partial suspended thing in waste water through final deposition pool mud-water separation,
Final deposition pool water outlet gravity flow is entered into carbon filtering pool, further adsorbs organic matter and suspended particulate matter concentration in waste water, water row up to standard
It puts；
Step 5: Treatment of Sludge will be remaining by final deposition pool major part sludge reflux contact-oxidation pool into step 3 in step 4
Sludge pump in sludge-tank is promoted to sludge filter press, progress sludge concentration and dewatering processing will to sludge-tank by mud discharging
Supernatant in sludge filter press is back to conditioning tank in step 1, outside the dewatered sludge after dehydration in sludge filter press
Fortune processing.
Conditioning tank waste water in the step 1 is by being steam heated to 35 DEG C.Nutritional agents in the step 2 is nitrogen
Class, Phosphorus, white sugar and flour.Acidification is hydrolyzed to waste water in anaerobic hydrolysis processing in the step 2.In the step 3
The mud-water separation of secondary settling tank, which is handled, carries out simultaneous oxygen processing to waste water between the processing of waste water oxidation and aeration.The step 3
In, as COD higher in contact-oxidation pool waste water, Powdered Activated Carbon is added in contact-oxidation pool, Powdered Activated Carbon and COD are pressed
Adsorbance ratio 1:1~20 mixing.The Powdered Activated Carbon is nanometer powder active carbon.Alkaline material in the step 3 is
Pulverized limestone and/or liquid alkaline.In the step three, when temperature is higher than 35 DEG C, bactericidal agent is added in contact-oxidation pool
And/or detergent and/or ammonium salt.The bactericidal agent is bleaching powder and/or alum.Waste water is produced in step 1 in conditioning tank
Residence time is 0.5~1.5h.It is 1~3h that waste water residence time in level-one anaerobic reation pool is produced in step 2.Step 2
Middle production waste water residence time in secondary anaerobic reaction tank is 0.5~2h.Waste water is produced in step 3 to stop in secondary settling tank
Time is 1.5~2.5h.It is 1~4h that waste water residence time in contact-oxidation pool is produced in step 3.
The above is only the ranges that preferred embodiments of the present invention, the present invention that therefore, it cannot be limited according to are implemented, i.e., according to the present invention
Equivalence changes made by description and decoration, all should belong to the present invention covering in the range of.
Claims (10)
1. a kind of process for treating industrial waste water, it is characterised in that: including following processing steps in sequence and condition:
Step 1: Wastewater Pretreatment, industrial wastewater are discharged into grille well, flow automatically after bulky grain suspended matter in grille well filtered wastewater
To conditioning tank, conditioning tank waste water pH value is adjusted to 6~8, influent load is 0~5000mg/L, uniform water quality and quantity；
Step 2: anaerobic waste water hydrolysis process is inoculated with and tames anaerobe in anaerobic hydrolysis processing stage, and to filler
Add nutritional agents, by conditioning tank waste water pump be promoted to level-one anaerobic reation pool, acted on by anaerobe, waste water into
Row one-stage hydrolysis is handled, then waste water pump is promoted to by the waste water after hydrolysis process from intermediate pool, uniform water quality and quantity is flow to
Secondary anaerobic reaction tank carries out second level hydrolysis process；
Step 3: the processing of waste water oxidation and aeration, the water outlet after secondary anaerobic reaction tank hydrolysis process flow to secondary settling tank certainly
Mud-water separation is carried out, secondary clarifier effluent gravity flow enters contact-oxidation pool, and alkaline material is added in contact-oxidation pool and adjusts waste water
PH value is to 6.5~8.5, by the way that under blast aeration oxygenation, waste water is thoroughly mixed with air, is acted on through aerobic microbiological
By in waste water organic pollutant and suspended particle absorbing control and degradation, the contact-oxidation pool dissolved oxygen be 2~4mg/L；
Step 4: water discharge up to standard, contact-oxidation pool water outlet precipitate the partial suspended thing in waste water through final deposition pool mud-water separation,
Final deposition pool water outlet gravity flow is entered into carbon filtering pool, further adsorbs organic matter and suspended particulate matter concentration in waste water, water row up to standard
It puts；
Step 5: Treatment of Sludge will be remaining by final deposition pool major part sludge reflux contact-oxidation pool into step 3 in step 4
Sludge pump in sludge-tank is promoted to sludge filter press, progress sludge concentration and dewatering processing will to sludge-tank by mud discharging
Supernatant in sludge filter press is back to conditioning tank in step 1, outside the dewatered sludge after dehydration in sludge filter press
Fortune processing.
2. process for treating industrial waste water according to claim 1, it is characterised in that: the conditioning tank waste water in the step 1
By being steam heated to 30~45 DEG C.
3. process for treating industrial waste water according to claim 1, it is characterised in that: the nutritional agents in the step 2 is nitrogen
Class, Phosphorus, white sugar and flour.
4. process for treating industrial waste water according to claim 1, it is characterised in that: at the anaerobic hydrolysis in the step 2
Acidification is hydrolyzed to waste water in reason.
5. process for treating industrial waste water according to claim 1, it is characterised in that: the muddy water of secondary settling tank in the step 3
Waste water is carried out between separating treatment and the processing of waste water oxidation and aeration and oxygen is handled.
6. process for treating industrial waste water according to claim 1, it is characterised in that: in the step 3, work as catalytic oxidation
In the waste water of pond when COD higher, add Powdered Activated Carbon in contact-oxidation pool, Powdered Activated Carbon and COD by adsorbance ratio 1:1~
20 mixing.
7. process for treating industrial waste water according to claim 6, it is characterised in that: the Powdered Activated Carbon is nanometer powder
Active carbon.
8. process for treating industrial waste water according to claim 1, it is characterised in that: the alkaline material in the step 3 is
Pulverized limestone and/or liquid alkaline.
9. process for treating industrial waste water according to claim 1, it is characterised in that: in the step three, work as temperature
When higher than 35 DEG C, bactericidal agent and/or detergent and/or ammonium salt are added in contact-oxidation pool.
10. process for treating industrial waste water according to claim 9, it is characterised in that: the bactericidal agent be bleaching powder and/
Or alum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832075.4A CN108975613A (en) | 2018-07-26 | 2018-07-26 | A kind of process for treating industrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832075.4A CN108975613A (en) | 2018-07-26 | 2018-07-26 | A kind of process for treating industrial waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108975613A true CN108975613A (en) | 2018-12-11 |
Family
ID=64550853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832075.4A Withdrawn CN108975613A (en) | 2018-07-26 | 2018-07-26 | A kind of process for treating industrial waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108975613A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845081A (en) * | 2019-11-28 | 2020-02-28 | 泰州诺盟新材料科技有限公司 | Environment-friendly hydrolysis process method of polyphenyl ether |
| CN111517573A (en) * | 2020-04-29 | 2020-08-11 | 贵州金农富平生态农牧科技有限公司 | Method and system for treating livestock breeding wastewater |
-
2018
- 2018-07-26 CN CN201810832075.4A patent/CN108975613A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845081A (en) * | 2019-11-28 | 2020-02-28 | 泰州诺盟新材料科技有限公司 | Environment-friendly hydrolysis process method of polyphenyl ether |
| CN111517573A (en) * | 2020-04-29 | 2020-08-11 | 贵州金农富平生态农牧科技有限公司 | Method and system for treating livestock breeding wastewater |
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Application publication date: 20181211 |