CN109824166A - Photovoltaic wastewater processing system and processing method - Google Patents
Photovoltaic wastewater processing system and processing method Download PDFInfo
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- CN109824166A CN109824166A CN201711185394.2A CN201711185394A CN109824166A CN 109824166 A CN109824166 A CN 109824166A CN 201711185394 A CN201711185394 A CN 201711185394A CN 109824166 A CN109824166 A CN 109824166A
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Abstract
The invention discloses a kind of photovoltaic wastewater processing systems, including sequentially connected former pond, homogeneous pond, Fenton's reaction pond, primary sedimentation tank, acid-base accommodation pond, coagulation reaction tank, secondary settling tank, primary filter, ultrafilter and reverse osmosis filter；Self priming pump is equipped between the former pond and homogeneous pond, the bottom of the primary sedimentation tank and secondary settling tank connects sludge recovery pond, booster pump is equipped between the ultrafilter and reverse osmosis filter, the pure water end of the reverse osmosis filter connects running water system, and the waste water end of the reverse osmosis filter connects sewage plant.The characteristics of photovoltaic wastewater processing system of the present invention utilizes photovoltaic wastewater to be in highly acid, using Fenton's reaction as the first processing links, the processing cost of waste water is saved, improve the degree of purification of waste water, ultrafilter and reverse osmosis filter can further remove the small particle type impurity ion in waste water, and treated that waste water can directly reach drinks rank for entire waste water treatment system.
Description
Technical field
The present invention relates to photovoltaic industry technical field of waste water processing, and in particular to a kind of photovoltaic wastewater processing system and processing
Method.
Background technique
Currently, global energy is in nervous trend, solar energy is a kind of green, environmental protection new energy, improves solar energy
Utilization rate, be capable of the nervous trend of the sufficiently link energy, photovoltaic industry comes into being.
China's photovoltaic industry rapidly develops in recent years, and photovoltaic wastewater handles of increasing concern, photovoltaic wastewater main source
It is useless in the auxiliary agent waste liquid and cleaning that silicon rod generates during grinding, burn into polishing etc. in cutting, grinding, slice and silicon wafer
Water, main pollution factor is fluorine ion, organic matter and pH value in photovoltaic wastewater.Wherein, fluorine ion is mainly derived from production work
Hydrofluoric acid used in sequence, organic matter mostly come from the isopropanol that texturing slot uses, and pH pollution, which mostlys come from production, to be made
Hydrofluoric acid, hydrochloric acid, nitric acid and sodium hydroxide etc..The characteristics of photovoltaic wastewater be waste strength variation greatly, waste water acid-base property pole
By force, waste water corrosivity is strong, discharge of wastewater property at times.
The common method of existing photovoltaic wastewater processing has absorption method and the precipitation method, fluorine ion for going in water removal and has
Machine object, but that there are drug dosages is big, water treatment effect is poor, water can not be recycled directly etc. and be asked after processing for the above method
Topic.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of photovoltaic wastewater processing systems, it can solve the prior art
Photovoltaic wastewater treatment effeciency is low, water quality problem not up to standard after processing.In addition, the present invention also provides a kind of photovoltaic wastewater processing
Method.
To solve the above-mentioned problems, the invention adopts the following technical scheme:
The first aspect of the present invention provides a kind of photovoltaic wastewater processing system, including sequentially connected former pond, homogeneous pond, sweet smell
Reaction tank, primary sedimentation tank, acid-base accommodation pond, coagulation reaction tank, secondary settling tank, primary filter, ultrafilter and reverse osmosis penetrate
Filter；
Self priming pump is equipped between the former pond and homogeneous pond, the bottom of the primary sedimentation tank and secondary settling tank connects sludge recovery pond,
Booster pump is equipped between the ultrafilter and reverse osmosis filter, the pure water end of the reverse osmosis filter connects tap water
The waste water end of system, the reverse osmosis filter connects sewage plant.
The acid-base accommodation pond and Fenton's reaction pond are separately connected pH regulating device as a preferred technical solution,.
The filter core of the ultrafilter is external-compression type hollow fiber filtering membrane as a preferred technical solution,.
The primary filter is by well strainer, PP cotton filter, active carbon filter as a preferred technical solution,
It is sequentially connected in series.
The second aspect of the present invention provides a kind of photovoltaic wastewater processing method, using above-mentioned photovoltaic wastewater processing system, packet
Include following steps:
Step 1: the waste water in former pond enters homogeneous pond under the pumping of self priming pump, Fenton's reaction pond is entered after homogeneous, to
Fenton reagent is added in Fenton's reaction pond, the pH for adjusting waste water in Fenton's reaction pond is 3~5, after reacting a period of time, is discharged into just
Heavy pond, after precipitation reaction, supernatant flows into acid-base accommodation pond, and sludge is discharged into sludge recovery pond；
Step 2: the pH value of waste water is adjusted to 7~9 in acid-base accommodation pond, it is anti-that the waste water after acid-base accommodation enters coagulation
Ying Chi, the dosing coagulant into coagulation reaction tank, the waste water after reaction enter primary sedimentation tank, and the supernatant for precipitating generation enters primary
Filter, sludge dispatch to sludge recovery pond；
It is filtered Step 3: waste water successively passes through primary filter, ultrafilter, reverse osmosis filter, osmosis filtration
The pure water that device generates accesses running water system, and the waste water of generation accesses sewage plant.
The Fenton reagent is the mixture of the concentrated sulfuric acid, ferrous sulfate, hydrogen peroxide as a preferred technical solution,.
As a preferred technical solution, the concentrated sulfuric acid, ferrous sulfate, hydrogen peroxide concentration ratio be 1:1:1.
The coagulant is the mixture of iron chloride and calcium hydroxide as a preferred technical solution,.
The characteristics of photovoltaic wastewater processing system of the present invention using photovoltaic wastewater is in highly acid, using Fenton's reaction as at first
Link is managed, the processing cost of waste water has been saved, has improved the degree of purification of waste water, most of organic matter in waste water is tried by Fenton
Agent reaction removes, and the coagulant in coagulation reaction tank is reacted with fluorinion in waste water generates fluoride precipitating, by the fluorine in waste water
Ion remaval, ultrafilter and reverse osmosis filter can further remove the small particle type impurity ion in waste water, entirely
Treated that waste water can directly reach drinks rank for waste water treatment system.
Detailed description of the invention
Invention is further described in detail with specific embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of photovoltaic wastewater processing system of the present invention.
Wherein, appended drawing reference is described as follows: former pond 1, homogeneous pond 2, Fenton's reaction pond 3, primary sedimentation tank 4, soda acid tune
Save pond 5, coagulation reaction tank 6, secondary settling tank 7, primary filter 8, ultrafilter 9, reverse osmosis filter 10, sludge recovery pond
11。
Specific embodiment
As shown in Figure 1, a kind of photovoltaic wastewater processing system, including sequentially connected former pond 1, homogeneous pond 2, Fenton's reaction
Pond 3, primary sedimentation tank 4, acid-base accommodation pond 5, coagulation reaction tank 6, secondary settling tank 7, primary filter 8, ultrafilter 9 and reverse osmosis penetrate
Filter 10, the pure water end of reverse osmosis filter 10 connect running water system, and the waste water end of reverse osmosis filter 10 connects sewage plant.
The filter core of ultrafilter 9 is external-compression type hollow fiber filtering membrane.Self priming pump, ultra filtration are equipped between former pond 1 and homogeneous pond 2
Booster pump, the bottom connection sludge recovery pond 11 of primary sedimentation tank 4 and secondary settling tank 7, acid are equipped between filter 9 and reverse osmosis filter 10
Alkali conditioning tank 5 and Fenton's reaction pond 3 are separately connected pH regulating device.Primary filter 8 by well strainer, PP cotton filter,
Active carbon filter is sequentially connected in series.
Treatment process of the invention is as follows: Step 1: the waste water in former pond 1 enters homogeneous pond under the pumping of self priming pump
2, Fenton's reaction pond 3 is entered after homogeneous, Fenton reagent is added into Fenton's reaction pond 3, adjusts waste water in Fenton's reaction pond 3
PH is 3~5, after reacting a period of time, is discharged into primary sedimentation tank 4, and after precipitation reaction, supernatant flows into acid-base accommodation pond 5, and sludge is discharged into
Sludge recovery pond 11；Step 2: the pH value of waste water is adjusted to 7~9 in acid-base accommodation pond 5, the waste water after acid-base accommodation
Into coagulation reaction tank 6, the dosing coagulant into coagulation reaction tank 6, the waste water after reaction enters primary sedimentation tank 4, precipitates generation
Supernatant enters primary filter 8, sludge dispatch to sludge recovery pond 11；Step 3: waste water successively pass through primary filter 8,
Ultrafilter 9, reverse osmosis filter 10 are filtered, and the pure water that reverse osmosis filter 10 generates accesses running water system, are produced
Raw waste water accesses sewage plant.Wherein, Fenton reagent is the mixture of the concentrated sulfuric acid, ferrous sulfate, hydrogen peroxide, the concentrated sulfuric acid, sulphur
Sour ferrous, hydrogen peroxide concentration ratio is 1:1:1, and coagulant is the mixture of iron chloride and calcium hydroxide.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (8)
1. a kind of photovoltaic wastewater processing system, which is characterized in that including sequentially connected former pond, homogeneous pond, Fenton's reaction pond,
Primary sedimentation tank, acid-base accommodation pond, coagulation reaction tank, secondary settling tank, primary filter, ultrafilter and reverse osmosis filter；
Self priming pump is equipped between the former pond and homogeneous pond, the bottom of the primary sedimentation tank and secondary settling tank connects sludge recovery pond,
Booster pump is equipped between the ultrafilter and reverse osmosis filter, the pure water end of the reverse osmosis filter connects tap water
The waste water end of system, the reverse osmosis filter connects sewage plant.
2. a kind of photovoltaic wastewater processing system as described in claim 1, it is characterised in that: the acid-base accommodation pond and Fenton are anti-
Ying Chi is separately connected pH regulating device.
3. a kind of photovoltaic wastewater processing system as described in claim 1, it is characterised in that: the filter core of the ultrafilter is
External-compression type hollow fiber filtering membrane.
4. a kind of photovoltaic wastewater processing system as described in claim 1, it is characterised in that: the primary filter is by net formula mistake
Filter, PP cotton filter, active carbon filter are sequentially connected in series.
5. a kind of photovoltaic wastewater processing method, special using the described in any item photovoltaic wastewater processing systems of Claims 1 to 4
Sign is, comprising the following steps:
Step 1: the waste water in former pond enters homogeneous pond under the pumping of self priming pump, Fenton's reaction pond is entered after homogeneous, to
Fenton reagent is added in Fenton's reaction pond, the pH for adjusting waste water in Fenton's reaction pond is 3~5, after reacting a period of time, is discharged into just
Heavy pond, after precipitation reaction, supernatant flows into acid-base accommodation pond, and sludge is discharged into sludge recovery pond；
Step 2: the pH value of waste water is adjusted to 7~9 in acid-base accommodation pond, it is anti-that the waste water after acid-base accommodation enters coagulation
Ying Chi, the dosing coagulant into coagulation reaction tank, the waste water after reaction enter primary sedimentation tank, and the supernatant for precipitating generation enters primary
Filter, sludge dispatch to sludge recovery pond；
It is filtered Step 3: waste water successively passes through primary filter, ultrafilter, reverse osmosis filter, osmosis filtration
The pure water that device generates accesses running water system, and the waste water of generation accesses sewage plant.
6. a kind of photovoltaic wastewater processing method as claimed in claim 5, it is characterised in that: the Fenton reagent be the concentrated sulfuric acid,
The mixture of ferrous sulfate, hydrogen peroxide.
7. a kind of photovoltaic wastewater processing method as claimed in claim 6, it is characterised in that: the concentrated sulfuric acid, ferrous sulfate, mistake
The concentration ratio of hydrogen oxide is 1:1:1.
8. a kind of photovoltaic wastewater processing method as claimed in claim 5, it is characterised in that: the coagulant is iron chloride and hydrogen
The mixture of calcium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711185394.2A CN109824166A (en) | 2017-11-23 | 2017-11-23 | Photovoltaic wastewater processing system and processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711185394.2A CN109824166A (en) | 2017-11-23 | 2017-11-23 | Photovoltaic wastewater processing system and processing method |
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| CN201711185394.2A Pending CN109824166A (en) | 2017-11-23 | 2017-11-23 | Photovoltaic wastewater processing system and processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116062951A (en) * | 2023-03-16 | 2023-05-05 | 天津高能时代水处理科技有限公司 | Zero-emission process system for waste acid and wastewater and waste acid and wastewater treatment method |
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| CN116062951A (en) * | 2023-03-16 | 2023-05-05 | 天津高能时代水处理科技有限公司 | Zero-emission process system for waste acid and wastewater and waste acid and wastewater treatment method |
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