CN105198119A - Technology for treating solar cell panel production wastewater - Google Patents
Technology for treating solar cell panel production wastewater Download PDFInfo
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- CN105198119A CN105198119A CN201510602164.6A CN201510602164A CN105198119A CN 105198119 A CN105198119 A CN 105198119A CN 201510602164 A CN201510602164 A CN 201510602164A CN 105198119 A CN105198119 A CN 105198119A
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- waste water
- wastewater
- panel production
- production wastewater
- solar panel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a technology for treating solar cell panel production wastewater, and relates to the field of water treatment. The technology includes the following steps that carborundum in the wastewater is removed through a horizontal flow grit basin; the wastewater is introduced into an adjustment settling basin, the quality and the amount of the wastewater are adjusted to enable the wastewater to be steady, and silt impurities in the wastewater are removed in a settled mode; the wastewater is introduced into a neutralizing and flocculating basin, neutralizers are added to adjust the pH value of the wastewater, and flocculation aids and flocculants are added to be sufficiently mixed to accelerate settling; the wastewater is introduced into a slant pipe settling basin, and sludge in the wastewater is removed and delivered outside; the wastewater is introduced into an adsorption filtering basin, adsorbents and catalysts are added, cationic surface active agents in the wastewater are adsorbed, and polyethylene glycol is removed; the waste water is introduced into an organism absorption tower, adsorbents and catalysts are added to adsorb polyethylene glycol in the water, remaining cationic surface active agents are removed, and treatment of the wastewater is completed. Different pollutants are respectively treated, device investment and capital construction investment are saved, running cost is reduced, and it is also guaranteed that the water obtained after treatment is discharged in a completely-qualified mode.
Description
Technical field
The present invention relates to water treatment field, be specifically related to a kind of solar panel production wastewater treatment technique.
Background technology
Solar panel production waste is mainly derived from cutting wastewater and Cleaning Wastewater, and wherein cutting waste liquor main component is: silicon carbide, silica flour, polyoxyethylene glycol, and Cleaning Wastewater also contains cats product except above three kinds of materials.
Silicon carbide and silica flour utilize advection sedimentation basin and coagulant sedimentation to remove; The removal more complicated of polyoxyethylene glycol and cats product, traditional method mainly contains: flocculent precipitation, chemical oxidization method, absorption method, embrane method, biochemical method etc.Wherein flocculent precipitation is not obvious for cats product removal effect; Chemical oxidization method energy consumption is high; Absorption method has adsorption for polyoxyethylene glycol and cats product, but how reducing the working cost of absorption method, is the key that will solve; Embrane method also can effectively remove polyoxyethylene glycol and cats product, but ultra-filtration membrane, can recycling design for (being greater than 6000 molecular weight) solution of macromolecule, but the organism of small-molecular-weight, but without any effect; Nanofiltration membrane and reverse osmosis membrane require too high for pretreated, and one-time investment expense is also higher.Cats product has germ resistance and coagulation, and degradation capability is more weak, it is generally acknowledged and is not suitable for carrying out biochemical treatment.
Status both at home and abroad and development trend, show according to related data: more rare to solar panel production wastewater treatment technical study both at home and abroad, research emphasis is still in high fluorine waste water and denitrogenation.The main source of solar panel factory effluent is cutting wastewater and Cleaning Wastewater, and main component is silicon carbide, silica flour, polyoxyethylene glycol and cats product.Traditional treatment process is that physical removal and biochemical process combine process, but there is the problems such as energy consumption is high, investment cost is high.Facing mankind the dual-pressure of limited conventional energy resources and environmental pollution, sun power is widely used as clean energy, along with the mankind are to raising that is social and environmental problem attention rate, solar cell will welcome more wide market, and incident sewage treatment process also inherently causes increasing social concerns.
In view of above reason, selected the scheme that different pollutent processes respectively, both saved equipment and initial cost, and again reduced running cost, the water after simultaneously also ensureing process reaches complete qualified discharge.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of different pollutent and processes respectively, and cost-saving and water after process reaches a kind of solar panel production wastewater treatment technique of emission standard.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of solar panel production wastewater treatment technique, is characterized in that: this waste water treatment process comprises the following steps:
(1) horizontal-flow grit chamber utilizes the silicon carbide in gravity removal waste water, artificial scarfing cinder;
(2) waste water processed through step (1) passes into adjustment settling tank, and regulate water quality and the water yield of waste water, make it to tend to be steady, precipitation removes silt impurity in waste water;
(3) during the waste water processed through step (2) passes into and flocculation basin, in and add the pH value that neutralizing agent regulates waste water in flocculation basin, add coagulant aids, flocculation agent fully mix with waste water;
(4) waste water processed through step (3) passes into tube settler, and precipitation removes the mud in waste water, and enters in sludge thickener by mud;
(5) waste water processed through step (4) passes into adsorption filter, adds sorbent material and catalyzer in adsorption filter, for adsorbing the cats product in waste water, removes polyoxyethylene glycol;
(6) waste water processed through step (5) passes in organic matter absorption tower, adds sorbent material and catalyzer in organic matter absorption tower, the polyoxyethylene glycol in planar water, removes remainder cats product, namely completes the process to this waste water.
Further technical scheme is: the neutralizing agent described in step (3) is sodium hydroxide, and coagulant aids is polymerize aluminum chloride, and flocculation agent is polyacrylamide.
Further technical scheme is: the sorbent material described in step (5) is flyash, and catalyzer is sodium hydroxide.
Further technical scheme is: the sorbent material described in step (6) is granular active carbon, and catalyzer is bodied ferric sulfate.
Further technical scheme is: the supernatant liquor backflow of step (4) described sludge thickener enters adjustment settling tank, and mud is transported to plate-and-frame filter press, the mud cake outward transport of compression.
Further technical scheme is: adsorb saturated after activated carbon utilize regeneratory furnace to carry out external regeneration.
The beneficial effect adopting technique scheme to produce is:
Different pollutent processes respectively, utilize coagulating sedimentation to remove physical impurity, the polyoxyethylene glycol in absorption method removal waste water and cats product, both saved equipment and initial cost, again reduce running cost, the water after simultaneously also ensureing process reaches complete qualified discharge.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is principle schematic of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
As shown in Figure 1, a kind of solar panel production wastewater treatment technique, this waste water treatment process comprises the following steps:
(1) horizontal-flow grit chamber utilizes the silicon carbide in gravity removal waste water, artificial scarfing cinder;
(2) waste water processed through step (1) passes into adjustment settling tank, and regulate water quality and the water yield of waste water, make it to tend to be steady, precipitation removes silt impurity in waste water;
(3) during the waste water processed through step (2) passes into and flocculation basin, in and add the pH value that neutralizing agent regulates waste water in flocculation basin, add coagulant aids, flocculation agent fully mix with waste water;
(4) waste water processed through step (3) passes into tube settler, and precipitation removes the mud in waste water, and enters in sludge thickener by mud;
(5) waste water processed through step (4) passes into adsorption filter, adds sorbent material and catalyzer in adsorption filter, for adsorbing the cats product in waste water, removes polyoxyethylene glycol;
(6) waste water processed through step (5) passes in organic matter absorption tower, adds sorbent material and catalyzer in organic matter absorption tower, the polyoxyethylene glycol in planar water, removes remainder cats product, namely completes the process to this waste water.
Preferred further: the neutralizing agent described in step (3) is sodium hydroxide, and coagulant aids is polymerize aluminum chloride, and flocculation agent is polyacrylamide.Sorbent material described in step (5) is flyash, and catalyzer is sodium hydroxide.Sorbent material described in step (6) is granular active carbon, and catalyzer is bodied ferric sulfate.
Preferred further: the supernatant liquor backflow of step (4) described sludge thickener enters adjustment settling tank, and mud is transported to plate-and-frame filter press, the mud cake outward transport of compression.
Further preferred: adsorb saturated after activated carbon utilize regeneratory furnace to carry out external regeneration.
Horizontal-flow grit chamber is owing to containing a large amount of silicon carbide in waste water, silicon carbide has destructive force for the wearing and tearing of pump impeller, so will by it removing before use sludge lifting pump, horizontal-flow grit chamber is more shallow, is again to utilize the effect of gravity to carry out desanding specially, so than being easier to cleaning, separate with other throw out again, silicon carbide content is purer, wherein silicon carbide periodic cleaning, and the silicon carbide cleaned out can be sold.
Regulate settling tank to regulate the water quality of waste water and the water yield, make it to tend to be steady, precipitating action of having held concurrently, the impurity such as silt in removal waste water, mud, after sludge system makes drying treatment, transports process.
To in and add neutralizing agent in flocculation basin and regulate the pH value of waste water, add PAC, PAM and waste water and be fully mixed into post precipitation and create conditions.Polymerize aluminum chloride also claims aluminium chlorohydroxide code name PAC, usually also referred to as water purification agent or coagulating agent.Polyacrylamide abbreviation PAM, be domestic conventional non-ionic type polymeric flocculant, molecular weight 1,500,000-2,000 ten thousand, commodity concentration is generally 8%.Organic polymer coargulator has form the consequent huge surface adsorption effect of larger flco between particle.
Tube settler is separated the mud mixture in waste water, and supernatant liquor flow to adsorption filter from body top, pond, and mud is then entered in sludge thickener by the static pressure of water by bottom.
The Main Function of adsorption filter is the cats product in absorption waste water, sorbent material is added in adsorption filter, preferred powder coal ash, after interpolation sodium hydroxide, it can reach more than 90% for the adsorption rate of cats product, simultaneously removal unit can also divide polyoxyethylene glycol, adsorb saturated after flyash can also use as material of construction, working cost is very low.
The Main Function of organic matter absorption tower utilizes the polyoxyethylene glycol in small-particle charcoal absorption water; filled with adsorbent in Adsorption of Organic tower; preferred small-particle gac; after chemicals dosing plant adds catalyzer in organic matter absorption tower; it can reach more than 92% for the adsorption rate of polyoxyethylene glycol; simultaneously can also remove remainder cats product, adsorb saturated after activated carbon utilize regeneratory furnace to carry out external regeneration, working cost is also very low.
Sludge thickener thickened sludge, so that mud outward transport.Clean water basin and intermediate pool are used for storing and regulating pondage.
The present invention adopts different pollutent to process respectively, utilize coagulating sedimentation to remove physical impurity, the polyoxyethylene glycol in absorption method removal waste water and cats product, both can save equipment and initial cost, again reduce running cost, the water after simultaneously also ensureing process reaches complete qualified discharge.
Claims (6)
1. a solar panel production wastewater treatment technique, is characterized in that: this waste water treatment process comprises the following steps:
(1) horizontal-flow grit chamber utilizes the silicon carbide in gravity removal waste water, artificial scarfing cinder;
(2) waste water processed through step (1) passes into adjustment settling tank, and regulate water quality and the water yield of waste water, make it to tend to be steady, precipitation removes silt impurity in waste water;
(3) during the waste water processed through step (2) passes into and flocculation basin, in and add the pH value that neutralizing agent regulates waste water in flocculation basin, add coagulant aids, flocculation agent fully mix with waste water;
(4) waste water processed through step (3) passes into tube settler, and precipitation removes the mud in waste water, and enters in sludge thickener by mud;
(5) waste water processed through step (4) passes into adsorption filter, adds sorbent material and catalyzer in adsorption filter, for adsorbing the cats product in waste water, removes polyoxyethylene glycol;
(6) waste water processed through step (5) passes in organic matter absorption tower, adds sorbent material and catalyzer in organic matter absorption tower, the polyoxyethylene glycol in planar water, removes remainder cats product, namely completes the process to this waste water.
2. a kind of solar panel production wastewater treatment technique according to claim 1, it is characterized in that: the neutralizing agent described in step (3) is sodium hydroxide, coagulant aids is polymerize aluminum chloride, and flocculation agent is polyacrylamide.
3. a kind of solar panel production wastewater treatment technique according to claim 1, it is characterized in that: the sorbent material described in step (5) is flyash, catalyzer is sodium hydroxide.
4. a kind of solar panel production wastewater treatment technique according to claim 1, it is characterized in that: the sorbent material described in step (6) is granular active carbon, catalyzer is bodied ferric sulfate.
5. a kind of solar panel production wastewater treatment technique according to claim 1, is characterized in that: the supernatant liquor backflow of step (4) described sludge thickener enters adjustment settling tank, and mud is transported to plate-and-frame filter press, the mud cake outward transport of compression.
6. a kind of solar panel production wastewater treatment technique according to claim 4, is characterized in that: adsorb saturated after activated carbon utilize regeneratory furnace to carry out external regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510602164.6A CN105198119B (en) | 2015-09-21 | 2015-09-21 | Technology for treating solar cell panel production wastewater |
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| CN201510602164.6A CN105198119B (en) | 2015-09-21 | 2015-09-21 | Technology for treating solar cell panel production wastewater |
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| CN105198119A true CN105198119A (en) | 2015-12-30 |
| CN105198119B CN105198119B (en) | 2017-05-03 |
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| CN201510602164.6A Expired - Fee Related CN105198119B (en) | 2015-09-21 | 2015-09-21 | Technology for treating solar cell panel production wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836932A (en) * | 2016-06-12 | 2016-08-10 | 贵州晨辉达矿业工程设计有限公司 | Method for treating wastewater containing sediment |
| CN106082530A (en) * | 2016-06-17 | 2016-11-09 | 云南今业生态建设集团有限公司 | A kind of integrated treatment photovoltaic energy enterprise productive life method of wastewater treatment |
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| JP2006225207A (en) * | 2005-02-18 | 2006-08-31 | Ngk Insulators Ltd | Method for supplying ammonia to hydrogen conversion catalyst |
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2015
- 2015-09-21 CN CN201510602164.6A patent/CN105198119B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006225207A (en) * | 2005-02-18 | 2006-08-31 | Ngk Insulators Ltd | Method for supplying ammonia to hydrogen conversion catalyst |
| CN1686870A (en) * | 2005-03-31 | 2005-10-26 | 苏州市环境工程有限责任公司 | Technique for processing reclamation of industrial wastewater from printing electronic circuit board |
| WO2012075389A2 (en) * | 2010-12-02 | 2012-06-07 | Douglas Frederick Sr | Method for treating a variety of wastewater streams |
| CN103086569A (en) * | 2013-01-08 | 2013-05-08 | 华南理工大学 | Method for detoxifying, emission-reducing and deeply treating wastewater of electronic electroplating industry |
| CN103482783A (en) * | 2013-09-12 | 2014-01-01 | 安徽省绿巨人环境技术有限公司 | Treatment process for plumbic acid waste water generated in production process of lead storage batteries |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836932A (en) * | 2016-06-12 | 2016-08-10 | 贵州晨辉达矿业工程设计有限公司 | Method for treating wastewater containing sediment |
| CN106082530A (en) * | 2016-06-17 | 2016-11-09 | 云南今业生态建设集团有限公司 | A kind of integrated treatment photovoltaic energy enterprise productive life method of wastewater treatment |
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| CN105198119B (en) | 2017-05-03 |
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