CN110902881A - Efficient combined water treatment process for short-distance coagulating sedimentation and filtration - Google Patents
Efficient combined water treatment process for short-distance coagulating sedimentation and filtration Download PDFInfo
- Publication number
- CN110902881A CN110902881A CN201911212690.6A CN201911212690A CN110902881A CN 110902881 A CN110902881 A CN 110902881A CN 201911212690 A CN201911212690 A CN 201911212690A CN 110902881 A CN110902881 A CN 110902881A
- Authority
- CN
- China
- Prior art keywords
- filtration
- tank
- short
- treatment process
- sedimentation
- 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.)
- Pending
Links
Classifications
-
- 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
- C02F1/001—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
- C02F1/52—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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to a short-distance coagulating sedimentation and filtration efficient combined water treatment process, which comprises the following steps: s1, collecting waste water; s2, neutralizing; s3, settling; s4, sludge concentration, the process has the advantages of investment saving, small occupied area, stable operation, simple operation and good treatment effect, the mixture generated by the reaction in the reaction tank is filtered through the coarse filtering device, the aperture of a filter screen in the coarse filtering device is large, the flow rate of liquid is not easy to reduce, the coarse filtering device can intercept partial solid, the time of subsequent sedimentation treatment is reduced, the workload of the plate and frame filter press is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency combined water treatment process for short-distance coagulating sedimentation and filtration.
Background
The wafer refers to a silicon wafer used for manufacturing a silicon semiconductor integrated circuit, and is called a wafer because the shape is circular; various circuit device structures can be fabricated on a silicon wafer to form an IC product with specific electrical functions.
Surface cleaning is required in the wafer production process, and the solution for surface cleaning generally comprises: the existing process is troublesome and time-consuming to treat the cleaning waste liquid, so that a short-distance coagulating sedimentation and filtration efficient combined water treatment process is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a short-distance coagulating sedimentation and filtration efficient combined water treatment process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a short-distance coagulating sedimentation and filtration efficient combined water treatment process comprises the following steps:
s1, collecting waste water: firstly, intensively discharging the wastewater into a regulating tank, and standing for 6-12 h;
s2, neutralization processing: lifting the wastewater from the regulating tank into a neutralization reaction tank through a sewage lifting pump, adding a precipitator into the neutralization reaction tank, and adding a flocculating agent for flocculation treatment after precipitation is generated in the neutralization reaction tank;
s3, settling treatment: filtering a mixture generated by the reaction in the neutralization reaction tank through a coarse filtering device, discharging the mixture to a sedimentation tank, standing for 4-8 h, discharging clear water to a clear water storage tank, and discharging the sediment to a sludge concentration tank;
s4, sludge concentration: and carrying out filter pressing treatment on the sludge in the sludge concentration tank through a plate-and-frame filter press, carrying out filter pressing treatment on the sludge through the plate-and-frame filter press to obtain sludge cakes, conveying the sludge cakes to a hazardous waste landfill site for landfill, and discharging the filtrate into a regulating tank again for circular treatment.
Preferably, the flocculation treatment time is 5min-20 min.
Preferably, the precipitator is lime milk and sodium hydroxide, and the mass ratio of the lime milk to the sodium hydroxide is (2-6): 1.
preferably, the flocculating agent is one of polyacrylamide or polyferric sulfate.
Preferably, the mass ratio of the flocculating agent to the wastewater is (0.00001-0.0001): 1.
preferably, the sedimentation tank is an inclined plate sedimentation tank.
Preferably, in S3, an acid solution is added to the clean water in the clean water storage tank to adjust the pH of the solution to 6-9.
Preferably, the acid solution is one of a hydrochloric acid solution or a sulfuric acid solution.
Preferably, the aperture of the filter screen of the coarse filtering device is 1mm-3mm, and the sludge in the coarse filtering device is dried and then conveyed to a hazardous waste landfill site for landfill.
The invention has the beneficial effects that:
1. the process has the advantages of investment saving, small occupied area, stable operation, simple operation and good treatment effect.
2. The mixture generated by the reaction in the reaction tank is filtered through the coarse filtering device, the aperture of a filter screen in the coarse filtering device is large, the flow rate of liquid is not easy to reduce, partial solid can be intercepted by the coarse filtering device, the time of subsequent sedimentation treatment is reduced, the workload of the plate and frame filter press is reduced, and the production efficiency is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
A short-distance coagulating sedimentation and filtration efficient combined water treatment process comprises the following steps:
s1, collecting waste water: the wastewater is intensively discharged into a regulating reservoir and is placed for 6-12 h, and in the placing process, partial components in the wastewater can react with each other, so that the time of subsequent reaction is shortened, and harmful substances in the wastewater are homogenized and equalized;
s2, neutralization processing: lifting the wastewater from the regulating tank into a neutralization reaction tank through a sewage lifting pump, adding a precipitator into the neutralization reaction tank, and adding a flocculating agent for flocculation treatment after precipitation is generated in the neutralization reaction tank;
s3, settling treatment: filtering a mixture generated by the reaction in the neutralization reaction tank through a coarse filtering device, discharging the mixture to a sedimentation tank, standing for 4-8 h, discharging clear water to a clear water storage tank, and discharging the sediment to a sludge concentration tank;
s4, sludge concentration: and carrying out filter pressing treatment on the sludge in the sludge concentration tank through a plate-and-frame filter press, carrying out filter pressing treatment on the sludge through the plate-and-frame filter press to obtain sludge cakes, conveying the sludge cakes to a hazardous waste landfill site for landfill, and discharging the filtrate into a regulating tank again for circular treatment.
Further, the flocculation treatment time is 5min-20 min.
Further, the precipitator is lime milk and sodium hydroxide, and the mass ratio of the lime milk to the sodium hydroxide is (2-6): 1.
further, the flocculating agent is one of polyacrylamide or polyferric sulfate.
Further, the mass ratio of the flocculating agent to the wastewater is (0.00001-0.0001): 1.
further, the sedimentation tank is an inclined plate sedimentation tank.
Further, in S3, an acid solution is added to the clean water in the clean water storage tank to adjust the pH of the solution to 6 to 9.
Further, the acid solution is one of a hydrochloric acid solution or a sulfuric acid solution.
Furthermore, the aperture of the filter screen of the coarse filtering device is 1mm-3mm, the aperture of the coarse filtering device is large, the influence on the flow rate of wastewater is small, simultaneously, sludge intercepted by the coarse filtering device is easy to dry, and the sludge inside the coarse filtering device is conveyed to a hazardous waste landfill site for landfill after being dried.
In the embodiment, the process has the advantages of investment saving, small occupied area, stable operation, simple operation and good treatment effect.
The mixture generated by the reaction in the reaction tank is filtered through the coarse filtering device, the aperture of a filter screen in the coarse filtering device is large, the flow rate of liquid is not easy to reduce, partial solid can be intercepted by the coarse filtering device, the time of subsequent sedimentation treatment is reduced, the workload of the plate and frame filter press is reduced, and the production efficiency is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A short-distance coagulating sedimentation and filtration efficient combined water treatment process is characterized by comprising the following steps:
s1, collecting waste water: firstly, intensively discharging the wastewater into a regulating tank, and standing for 6-12 h;
s2, neutralization processing: lifting the wastewater from the regulating tank into a neutralization reaction tank through a sewage lifting pump, adding a precipitator into the neutralization reaction tank, and adding a flocculating agent for flocculation treatment after precipitation is generated in the neutralization reaction tank;
s3, settling treatment: filtering a mixture generated by the reaction in the neutralization reaction tank through a coarse filtering device, discharging the mixture to a sedimentation tank, standing for 4-8 h, discharging clear water to a clear water storage tank, and discharging the sediment to a sludge concentration tank;
s4, sludge concentration: and carrying out filter pressing treatment on the sludge in the sludge concentration tank through a plate-and-frame filter press, carrying out filter pressing treatment on the sludge through the plate-and-frame filter press to obtain sludge cakes, conveying the sludge cakes to a hazardous waste landfill site for landfill, and discharging the filtrate into a regulating tank again for circular treatment.
2. The high-efficiency water treatment process combining short-distance coagulation sedimentation and filtration as claimed in claim 1, wherein the flocculation treatment time is 5min-20 min.
3. The efficient combined water treatment process of short-range coagulating sedimentation and filtration as claimed in claim 1, wherein the precipitant is lime milk and sodium hydroxide, and the mass ratio of the lime milk to the sodium hydroxide is (2-6): 1.
4. the high-efficiency water treatment process combining short-range coagulation sedimentation and filtration as claimed in claim 1, wherein the flocculating agent is one of polyacrylamide or polymeric ferric sulfate.
5. The high-efficiency combined water treatment process of short-distance coagulation sedimentation and filtration as claimed in claim 4, wherein the mass ratio of the flocculating agent to the wastewater is (0.00001-0.0001): 1.
6. the high-efficiency combined water treatment process of short-distance coagulation sedimentation and filtration as claimed in claim 1, wherein the sedimentation tank is an inclined plate sedimentation tank.
7. The high-efficiency water treatment process combining short-range coagulation sedimentation and filtration as claimed in claim 1, wherein in S3, acid solution is added to clean water in a clean water storage tank to adjust the pH value of the solution to 6-9.
8. The high-efficiency water treatment process combining short-range coagulation precipitation and filtration as claimed in claim 7, wherein the acid solution is one of hydrochloric acid solution or sulfuric acid solution.
9. The high-efficiency combined water treatment process of short-distance coagulation sedimentation and filtration as claimed in claim 1 or 8, wherein the aperture of the filter screen of the coarse filtration device is 1mm-3mm, and the sludge inside the coarse filtration device is dried and conveyed to a hazardous waste landfill for landfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911212690.6A CN110902881A (en) | 2019-12-02 | 2019-12-02 | Efficient combined water treatment process for short-distance coagulating sedimentation and filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911212690.6A CN110902881A (en) | 2019-12-02 | 2019-12-02 | Efficient combined water treatment process for short-distance coagulating sedimentation and filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110902881A true CN110902881A (en) | 2020-03-24 |
Family
ID=69821575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911212690.6A Pending CN110902881A (en) | 2019-12-02 | 2019-12-02 | Efficient combined water treatment process for short-distance coagulating sedimentation and filtration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110902881A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002045871A (en) * | 2000-07-31 | 2002-02-12 | Ngk Spark Plug Co Ltd | Treating method for waste chromate liquid |
| CN104829014A (en) * | 2015-06-03 | 2015-08-12 | 南宁市桂润环境工程有限公司 | Short-distance membrane separation treatment process for lead-zinc industrial beneficiation and smelting wastewater |
| CN105036416A (en) * | 2015-08-01 | 2015-11-11 | 合肥铜冠国轩铜材有限公司 | Lime joint backflow heavy-metal wastewater treatment system |
| CN106830422A (en) * | 2017-02-14 | 2017-06-13 | 江苏科技大学 | A kind of short distance preprocess method of cutting waste fluid |
| CN106976943A (en) * | 2017-04-28 | 2017-07-25 | 福建凯昱微晶石墨有限公司 | The processing system and its application method of a kind of acidic fluoride-containing waste water after graphite purification |
| CN206457468U (en) * | 2017-01-23 | 2017-09-01 | 天津泰卓科技有限公司 | A kind of waste lubricant oil regeneration coagulant precipitation device |
| CN107445351A (en) * | 2017-09-27 | 2017-12-08 | 武汉兴天宇环境股份有限公司 | A kind of processing method of fluorine-containing ammonia nitrogen waste water |
| CN108057263A (en) * | 2017-12-19 | 2018-05-22 | 成都市瑞焱科技有限公司 | A kind of small ship type sedimentation tank device for treating sewage |
| CN108178374A (en) * | 2017-08-13 | 2018-06-19 | 贾新奎 | A kind of settler for life kind sewage |
| CN108439733A (en) * | 2018-06-11 | 2018-08-24 | 淄博职业学院 | A kind of petrochemical effluent comprehensive purifying equipment and its application method |
| CN108689465A (en) * | 2018-07-17 | 2018-10-23 | 兴源环境科技股份有限公司 | A kind of combined sewage short distance processing system and method |
| CN110054322A (en) * | 2019-05-22 | 2019-07-26 | 海洲环保集团有限公司 | A kind of acid waste water containing heavy metal dangerous waste slag reduction treatment system and technique |
-
2019
- 2019-12-02 CN CN201911212690.6A patent/CN110902881A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002045871A (en) * | 2000-07-31 | 2002-02-12 | Ngk Spark Plug Co Ltd | Treating method for waste chromate liquid |
| CN104829014A (en) * | 2015-06-03 | 2015-08-12 | 南宁市桂润环境工程有限公司 | Short-distance membrane separation treatment process for lead-zinc industrial beneficiation and smelting wastewater |
| CN105036416A (en) * | 2015-08-01 | 2015-11-11 | 合肥铜冠国轩铜材有限公司 | Lime joint backflow heavy-metal wastewater treatment system |
| CN206457468U (en) * | 2017-01-23 | 2017-09-01 | 天津泰卓科技有限公司 | A kind of waste lubricant oil regeneration coagulant precipitation device |
| CN106830422A (en) * | 2017-02-14 | 2017-06-13 | 江苏科技大学 | A kind of short distance preprocess method of cutting waste fluid |
| CN106976943A (en) * | 2017-04-28 | 2017-07-25 | 福建凯昱微晶石墨有限公司 | The processing system and its application method of a kind of acidic fluoride-containing waste water after graphite purification |
| CN108178374A (en) * | 2017-08-13 | 2018-06-19 | 贾新奎 | A kind of settler for life kind sewage |
| CN107445351A (en) * | 2017-09-27 | 2017-12-08 | 武汉兴天宇环境股份有限公司 | A kind of processing method of fluorine-containing ammonia nitrogen waste water |
| CN108057263A (en) * | 2017-12-19 | 2018-05-22 | 成都市瑞焱科技有限公司 | A kind of small ship type sedimentation tank device for treating sewage |
| CN108439733A (en) * | 2018-06-11 | 2018-08-24 | 淄博职业学院 | A kind of petrochemical effluent comprehensive purifying equipment and its application method |
| CN108689465A (en) * | 2018-07-17 | 2018-10-23 | 兴源环境科技股份有限公司 | A kind of combined sewage short distance processing system and method |
| CN110054322A (en) * | 2019-05-22 | 2019-07-26 | 海洲环保集团有限公司 | A kind of acid waste water containing heavy metal dangerous waste slag reduction treatment system and technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210261447A1 (en) | Treatment system and treatment process for removing hardness, silicon, and turbidity from wastewater having high salt concentration | |
| CN112321020A (en) | Efficient pretreatment system and method for circulating water sewage | |
| CN203741157U (en) | Wet process flue gas desulphurization and washing wastewater treatment device | |
| CN110642425B (en) | Treatment method of trivalent chromium passivation wastewater containing hydrofluoric acid and carboxylic acid | |
| CN112479396A (en) | Deep treatment softening system and process for drainage water | |
| CN110950468A (en) | Desulfurization wastewater electro-flocculation coupling Fenton oxidation standard-reaching treatment system and method | |
| CN110902881A (en) | Efficient combined water treatment process for short-distance coagulating sedimentation and filtration | |
| CN206692476U (en) | A kind of pickling waste waters treatment for reuse system | |
| RU2530041C1 (en) | Method of purifying industrial waste water | |
| CN213416607U (en) | Sewage treatment device system | |
| CN215627391U (en) | Integrated device for efficient advanced treatment of surface water | |
| CN209065501U (en) | A kind of desulfurization wastewater treatment system | |
| JP5072780B2 (en) | Fluorine waste water treatment method using titanium oxide and metatitanic acid | |
| CN211871618U (en) | Device for treating desulfurization wastewater by composite method | |
| CN212127832U (en) | Desulfurization waste water electroflocculation coupling fenton oxidation standard-reaching treatment system | |
| CN211141755U (en) | Convenient integrated form waste water treatment and recycling system that sprays paint | |
| CN114275961A (en) | Concentrated decrement system of strong brine | |
| CN109851102B (en) | Treatment method for sectional collection and sectional neutralization of graphite acid wastewater | |
| CN106167312B (en) | The mixed reaction pond and its processing method of fluoride wastewater treatment | |
| CN112062366A (en) | Coal-fired power plant desulfurization wastewater comprehensive treatment system and method | |
| RU2530042C1 (en) | Method purifying waste water from leather production | |
| CN110746003A (en) | Convenient integrated paint spraying wastewater treatment and recycling system and method | |
| CN110054359A (en) | Sewage treatment utilizes device in a kind of processing of gelatin | |
| CN110746000A (en) | Method and device for treating desulfurization wastewater by using composite method | |
| CN203602429U (en) | System for separating solid from liquid of electroplating wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |