CN208362049U - The processing system of wet process depickling waste water - Google Patents
The processing system of wet process depickling waste water Download PDFInfo
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- CN208362049U CN208362049U CN201820608493.0U CN201820608493U CN208362049U CN 208362049 U CN208362049 U CN 208362049U CN 201820608493 U CN201820608493 U CN 201820608493U CN 208362049 U CN208362049 U CN 208362049U
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- waste water
- wet process
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Abstract
The utility model discloses a kind of processing systems of wet process depickling waste water, comprising: conditioning tank pre-processes wet process depickling waste water, aoxidizes the reducing substances in wet process depickling waste water；The first-stage reactor for connecting conditioning tank carries out the processing of level-one flocculation sedimentation to pretreated wet process depickling waste water, removes calcium therein, magnesium, silicate；The second reactor for connecting first-stage reactor, the supernatant obtained to the processing of level-one flocculation sedimentation carry out the processing of second level flocculation sedimentation, remove heavy metal ion therein；The neutralization pond for connecting second reactor carries out pH adjusting to the supernatant obtained after the processing of second level flocculation sedimentation；The grade one filter for connecting neutralization pond, the supernatant after adjusting to pH are filtered to carry out retention separation；And the secondary filter of connection grade one filter, the filtrate obtained after by-pass filtration is subjected to secondary filtration, removes organic matter and suspended matter.The utility model not only realizes the qualified discharge of wet process depickling waste water, while also protecting environment.
Description
Technical field
The utility model relates to technical field of waste water processing more particularly to a kind of processing systems of wet process depickling waste water.
Background technique
Incineration method can be most cities with the minimizing of most fast velocity interpolation garbage disposal, innoxious and recycling
The development trend of domestic rubbish disposal.Flue gas caused by waste incineration is the issuable main secondary dirt of burning disposal process
Contaminate one of source.Pollutant component is based on the compositions such as particulate matter, HCl, NOx, SOX, HCl, CO and dioxin.Sour gas is de-
Except technology is the core of flue gases purification, technique can with the dry and wet form of deacidified product by whether deacidification has water to be added
It is divided into wet process, dry method and three kinds of semidry method.Flue gas purifying technique be by Refuse Incineration Process generate exhaust gas in contaminant component,
Concentration and the discharge standard needed to be implemented determine.
Dry purification process is fairly simple, and investment is low, and operation and maintenance are convenient, but dry process purification efficiency is relatively low,
Pharmaceutical use is big.Semidry method purification process can reach higher purification efficiency, and investment is low with operating cost, and process is simple, but
It is that lime white preparation system is more complex, solid will appear wall sticking phenomenon in absorption tower, and pipeline is easy to block, and sprayer is easy to wear broken
It splits, the problems such as absorbent dosage is difficult to control.The Pollutant-degrading gene highest of wet cleaning technique, but process is complicated, it is mating
Equipment is more, and has subsequent waste water handling problem.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of pair of wet process depickling waste water and carry out reprocessing reuse
The processing system of wet process depickling waste water.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of processing of wet process depickling waste water
System, comprising:
Conditioning tank pre-processes wet process depickling waste water, aoxidizes the reducing substances in wet process depickling waste water；
The first-stage reactor for connecting the conditioning tank carries out at level-one flocculation sedimentation pretreated wet process depickling waste water
Reason removes calcium therein, magnesium, silicate；
The second reactor for connecting the first-stage reactor, the supernatant obtained to the processing of level-one flocculation sedimentation carry out second level
Flocculation sedimentation processing, removes heavy metal ion therein；
The neutralization pond for connecting the second reactor carries out pH tune to the supernatant obtained after the processing of second level flocculation sedimentation
Section；
The grade one filter for connecting the neutralization pond, the supernatant after adjusting to pH are filtered to carry out retention separation；
And
The filtrate obtained after by-pass filtration is carried out secondary filtration, gone by the secondary filter for connecting the grade one filter
Except organic matter and suspended matter.
Preferably, the conditioning tank is equipped with aerator.
Preferably, the grade one filter is quartz filter；The secondary filter is active carbon filter.
Preferably, the outlet pipe of the grade one filter and/or secondary filter is equipped with online Turbidity measurement instrument.
Preferably, pressure biography is respectively equipped on the water inlet pipe and outlet pipe of the grade one filter and/or secondary filter
Sensor.
Preferably, pH on-line measurement instrument is equipped in the first-stage reactor, second reactor and neutralization pond.
Preferably, the processing system further includes primary-clarifiers, Secondary clarifier；
The primary-clarifiers are connected between the first-stage reactor and second reactor, the Secondary clarifier connection
Between the second reactor and neutralization pond.
Preferably, the processing system further includes sewage sludge storage pond；The bottom of the primary-clarifiers and Secondary clarifier
Connect the sewage sludge storage pond.
The utility model has the beneficial effects that wet process depickling waste water is pre-processed, the flocculation of level-one flocculation sedimentation, second level is sunk
The processing such as shallow lake, neutralization and progress firsts and seconds filtering, the clear water finally exported can reach " household refuse landfill sites pollution
Control standard " related request and index in (GB16889-2008), the harmless treatment of wet process depickling waste water is realized, and after being
Continuous comprehensive utilization provides pre-treatment, not only realizes the qualified discharge of wet process depickling waste water, while also protecting environment.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural block diagram of the processing system of the wet process depickling waste water of an embodiment of the present invention.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the processing system of the wet process depickling waste water of an embodiment of the present invention, it may include sequentially connected
Conditioning tank 10, first-stage reactor 20, second reactor 30, neutralization pond 40, grade one filter 50 and secondary filter 60 etc., wet process
Depickling waste water successively each section, successively performs corresponding processing, last exportable production water up to standard.It includes pair that wet process, which is dehydrated waste water,
The wastes such as rubbish carry out the waste water that wet process depickling is handled.
Wherein, conditioning tank 10 aoxidizes the reproducibility in wet process depickling waste water for pre-processing to wet process depickling waste water
Substance (hydrogen sulfide, nitrogen oxides etc.).Conditioning tank 10 is equipped with aerator and reaches to air or oxygen etc. is filled in conditioning tank
The purpose of redox, substance.In conditioning tank 10, the water quality and quantity of wet process depickling waste water can also adjust, reach the mesh of homogeneous
, reduce influence of the variation to subsequent handling of water quality and quantity, alleviate frequent starting/stopping operating pressure that rear end respectively pumps,
Make rear end process stable operation.
The water outlet of conditioning tank 10 can connect the water inlet end of first-stage reactor 20 by outlet conduit, in the driving of elevator pump
Under, pretreated wet process depickling waste water is delivered to first-stage reactor 20.
First-stage reactor 20 carries out the processing of level-one flocculation sedimentation to pretreated wet process depickling waste water, removes therein
The impurity such as calcium, magnesium, silicate can also remove suspended matter therein, soften to waste water, reduce and the stifled wind of fouling dirt occurs
Danger.In the case that blender is stirred at an upper portion thereof in first-stage reactor 20, sodium hydroxide, magnesia mixture and flocculant are added
Equal medicaments are reacted with wet process depickling waste water, the generation sediment such as calcium therein, magnesium, silicate.By level-one flocculation sedimentation
The supernatant that processing is formed is delivered to second reactor 30 and carries out the processing of second level flocculation sedimentation, and sediment can then focus on.
The supernatant that second reactor 30 obtains the processing of level-one flocculation sedimentation carries out the processing of second level flocculation sedimentation, removes it
In heavy metal ion, also can remove remaining most of calcium ion after the processing of level-one flocculation sedimentation.In second reactor 30,
The medicaments such as sodium carbonate, heavy metal chelating agent, flocculant and coagulant are added, occur that the heavy metal ion in supernatant instead with it
Chelate should be formed, remaining most of calcium ion can also be reacted with sodium carbonate in supernatant generates sediment.It wads a quilt with cotton by second level
The supernatant that solidifying precipitation process is formed is delivered to neutralization pond 40 and is neutralized, and sediment can then be handled with level-one flocculation sedimentation
The sediment of formation focuses on together.
PH on-line measurement instrument can be set as needed in first-stage reactor 20 and second reactor 30, real-time detection wherein liquid
The pH of body.
Corresponding level-one flocculation sedimentation processing and the processing of second level flocculation sedimentation, the processing system of the utility model may also include one
Grade clarifier 21 and Secondary clarifier 31.Primary-clarifiers 21 are connected between first-stage reactor 20 and second reactor 30, and two
Grade clarifier 31 is connected between second reactor 30 and neutralization pond 40.
Specifically, the water outlet of the input end connection first-stage reactor 20 of primary-clarifiers 21, primary-clarifiers 21 go out
Water end (W.E.) then connects the water inlet end of second reactor 30；The input end of the water outlet connection Secondary clarifier 31 of second reactor, two
The water outlet of grade clarifier 31 then connects the water inlet end of neutralization pond 40.
The upper liquid of first-stage reactor 20 enters primary-clarifiers 21 and carries out precipitation and separation.Primary-clarifiers 21 select inclined tube
Clarifier, built-in inclined tube, center water inlet peripheral effluent collect sludge using rotary mud scraper.Mud scraper scraper plate will be sink to pond
The sludge (sediment) at bottom is scraped to the sludge bucket at pond center, then is discharged through sludge pipe.The water outlet of primary-clarifiers 21 flows into second level certainly
Reactor 30 continues with.
The water outlet of second reactor 30 enters Secondary clarifier 31 and carries out precipitation and separation.Secondary clarifier 31 selects inclined tube clear
Clear device, built-in inclined tube, center water inlet peripheral effluent collect sludge using rotary mud scraper.Mud scraper scraper plate will be sink to bottom of pond
Sludge (sediment) scrape to the sludge bucket at pond center, then be discharged through sludge pipe.
Mud level meter is set in primary-clarifiers 21 and Secondary clarifier 31, and mud level meter can be with control system communication connection to incite somebody to action
The data monitored are uploaded to control system.The sludge pump of 31 bottom spoil disposal of primary-clarifiers 21 and Secondary clarifier, which is selected, to be become
The screw pump of frequency control.
The processing system of the utility model further may also include sewage sludge storage pond 90.Primary-clarifiers 21 and second level clarification
The bottom of device 31 connects sewage sludge storage pond 90, and the sludge (sediment) of discharge is discharged into sewage sludge storage pond 90 and is carried out at concentration
Reason.
Neutralization pond 40 carries out pH adjusting to the supernatant obtained after the processing of second level flocculation sedimentation.In neutralization pond 40, acid is added
Alkali medicament (such as hydrochloric acid) and supernatant neutralization reaction therein, adjust the pH to 6-9 of supernatant.PH can be equipped in neutralization pond 40 to exist
Line measuring instrument, the pH of real-time detection wherein supernatant, according to the additional amount of the variation control soda acid medicament of supernatant pH.
Grade one filter 50 connects neutralization pond 40, and the supernatant after adjusting to pH is filtered to carry out retention separation.This
In embodiment, grade one filter 50 is quartz filter, and using quartz sand as filler, filtration resistance is small, large specific surface area,
Resistance to acid and alkali is strong, and resistance tocrocking is good, effectively removes the impurity such as suspended matter, the colloid in supernatant.
The filtrate that grade one filter 50 exports enters secondary filter 60.Secondary filter 60 is to obtaining after by-pass filtration
Filtrate carries out advanced treating.Secondary filter 60 is active carbon filter, is carried out using the adsorption function of active carbon to supernatant
Adsorption filtration can retain the organic impurities of not easy-to-use clarification removal and small suspended matter absorption, to remove suspension therein
Object (SS), organic microbial etc. reduce CODcr (dichromate oxidizability), BOD5 (biochemical oxygen demand (BOD)) and peculiar smell, reach water outlet
Mark.
Water inlet pipe, outlet pipe, backwash water inlet pipe, backwash air inlet pipe, exhaust pipe of active carbon filter etc. are all arranged
Pneumatic operated valve；Hand-operated butterfly valve is set before backwash air inlet pipe pneumatic operated valve.
The outlet pipe of at least one in grade one filter 50 and secondary filter 60 is equipped with online Turbidity measurement instrument, to out
Water carries out real-time monitoring, and the data monitored can be uploaded to control system.Grade one filter 50 and/or secondary filter 60 into
It can also be respectively equipped with pressure sensor on water pipe and outlet pipe, real-time monitoring is carried out to water-in and water-out pipe pressure, and true according to pressure difference
Determine backwashing time, the pressure data monitored can be uploaded to control system.
Filtering raw water box can be equipped between neutralization pond 40 and grade one filter 50, after storing the neutralization from neutralization pond 40
Supernatant, then by intake pump by filter raw water box in liquid be delivered to grade one filter 50.What grade one filter 50 exported
Filtrate enters secondary filter 60 using overbottom pressure.
The output end of secondary filter 60 can also connect clear water reserviors, and filtered production water is drained into wherein.
Further, the processing system of the utility model may also include control system, connects and controls to adjust pond 10, level-one
Relevant action in reactor 20, second reactor 30, neutralization pond 40, grade one filter 50 and secondary filter 60 etc..
The processing system of the utility model is applied to the processing of wet process depickling waste water, it may include following steps:
S1, wet process depickling waste water is pre-processed in conditioning tank 10, aoxidizes the reproducibility object in wet process depickling waste water
Matter.
S2, pretreated wet process depickling waste water enter first-stage reactor 20 and carry out the processing of level-one flocculation sedimentation, remove it
In calcium, magnesium, silicate, obtain supernatant.
S3, enter at the progress second level flocculation sedimentation of second reactor 30 by the supernatant that level-one flocculation sedimentation handles acquisition
Reason removes heavy metal ion therein, obtains supernatant.
S4, the supernatant that the processing of second level flocculation sedimentation obtains is sent to the progress pH adjusting of neutralization pond 40.
S5, pH is adjusted after supernatant be filtered processing by grade one filter 50, the filtrate being obtained by filtration is sent
To secondary filter 60.
S6, secondary filter 60 carry out advanced treating to the filtrate obtained after by-pass filtration, and output produces water.
The production water energy of acquisition enough reaches correlation in " household refuse landfill sites contamination control standard " (GB16889-2008) and wants
It asks and other characteristic contamination indexs, realizes the harmless treatment of wet process depickling waste water.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of processing system of wet process depickling waste water characterized by comprising
Conditioning tank pre-processes wet process depickling waste water, aoxidizes the reducing substances in wet process depickling waste water；
The first-stage reactor for connecting the conditioning tank carries out the processing of level-one flocculation sedimentation to pretreated wet process depickling waste water,
Remove calcium therein, magnesium, silicate；
The second reactor for connecting the first-stage reactor, the supernatant obtained to the processing of level-one flocculation sedimentation carry out second level flocculation
Precipitation process removes heavy metal ion therein；
The neutralization pond for connecting the second reactor carries out pH adjusting to the supernatant obtained after the processing of second level flocculation sedimentation；
The grade one filter for connecting the neutralization pond, the supernatant after adjusting to pH are filtered to carry out retention separation；And
The filtrate obtained after by-pass filtration is carried out secondary filtration by the secondary filter for connecting the grade one filter, and removal has
Machine object and suspended matter.
2. the processing system of wet process depickling waste water according to claim 1, which is characterized in that the conditioning tank is equipped with aeration
Device.
3. the processing system of wet process depickling waste water according to claim 1, which is characterized in that the grade one filter is stone
Sand filter；The secondary filter is active carbon filter.
4. the processing system of wet process depickling waste water according to claim 1, which is characterized in that the grade one filter and/
Or the outlet pipe of secondary filter is equipped with online Turbidity measurement instrument.
5. the processing system of wet process depickling waste water according to claim 1, which is characterized in that the grade one filter and/
Or pressure sensor is respectively equipped on the water inlet pipe and outlet pipe of secondary filter.
6. the processing system of wet process depickling waste water according to claim 1, which is characterized in that the first-stage reactor, two
PH on-line measurement instrument is equipped in stage reactor and neutralization pond.
7. the processing system of wet process depickling waste water according to claim 1-6, which is characterized in that the processing system
System further includes primary-clarifiers, Secondary clarifier；
The primary-clarifiers are connected between the first-stage reactor and second reactor, and the Secondary clarifier is connected to institute
It states between second reactor and neutralization pond.
8. the processing system of wet process depickling waste water according to claim 7, which is characterized in that the processing system further includes
Sewage sludge storage pond；The primary-clarifiers connect the sewage sludge storage pond with the bottom of Secondary clarifier.
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| CN201820608493.0U CN208362049U (en) | 2018-04-26 | 2018-04-26 | The processing system of wet process depickling waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439651A (en) * | 2018-04-26 | 2018-08-24 | 深圳能源资源综合开发有限公司 | The processing method and processing system of wet method depickling waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439651A (en) * | 2018-04-26 | 2018-08-24 | 深圳能源资源综合开发有限公司 | The processing method and processing system of wet method depickling waste water |
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