CN208995260U - A kind of waste water treatment system of lead refinery - Google Patents
A kind of waste water treatment system of lead refinery Download PDFInfo
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- CN208995260U CN208995260U CN201821198859.8U CN201821198859U CN208995260U CN 208995260 U CN208995260 U CN 208995260U CN 201821198859 U CN201821198859 U CN 201821198859U CN 208995260 U CN208995260 U CN 208995260U
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Abstract
The utility model provides a kind of waste water treatment system of lead refinery, and main includes grid collecting-tank, conditioning tank, PH the adjustment pond for being sequentially connected setting, except lead reaction tank, coagulation reaction tank, flocculation tank, distribution reservoir, rectangular sedimentation tank, intermediate pool, sandfiltration pot, charcoal filter tank, reuse pool；The flocculation tank dirt be discharged forms dewatered sludge via sludge concentration tank, sludge filter press；Wherein, the pressing filtering liquid of sludge filter press is back to conditioning tank, and the sludge that rectangular sedimentation tank is discharged enters in sludge concentration tank.The utility model is used to handle the trade effluent of lead refinery, can not only recycle heavy metal resources, while purifying sewage, it is made to meet national emission standard.
Description
Technical field
The utility model relates to production sewage treatment technical fields, refer in particular to a kind of waste water treatment system of lead refinery.
Background technique
Waste water in lead refinery includes production waste water and sanitary sewage, and producing mainly has dismantling Workshop Production useless in waste water
The pre- desulfurization of water, lead plaster and Waste Sulfuric Acid processing Workshop Production wastewater treatment, the production of meltshop, other production waste water, property
Similar, major pollutants are the polluters such as acid, alkali, Pb and SS.It is detected, produces CODcr, BOD5 of each stock waste water in waste water
It is not high, and ammonia nitrogen concentration, in addition to worker's bath wastewater, other waste water are within standard；The suspended matter and lead of each stock waste water are dense
It spends higher；And it is mixed after the waste water that closes, in acidity, in addition to ammonia nitrogen is up to standard, other indexs exceed processing standard, especially PH,
CODcr, SS and heavy metal lead.Concentration is generated compared with the standard of processing by each pollutant of each production waste water it is found that after mixing
The purification emphasis of comprehensive production waste water be pH, CODcr, SS and heavy metal lead.
Summary of the invention
The purpose of this utility model is that being directed to the existing state of the art, a kind of waste water treatment system of lead refinery is provided,
Commercial metal pollution is removed, discharge standard is complied with.
In order to achieve the above objectives, the utility model adopts the following technical solution:
The utility model is a kind of waste water treatment system of lead refinery, and the main grid including being sequentially connected setting catchments
Lead reaction tank, coagulation reaction tank, flocculation tank, distribution reservoir, rectangular sedimentation tank, centre, PH adjustment pond, are removed at conditioning tank in pond
Pond, sandfiltration pot, charcoal filter tank, reuse pool；The flocculation tank dirt be discharged is via sludge concentration tank, sludge filter press
Form dewatered sludge；Wherein, the pressing filtering liquid of sludge filter press is back to conditioning tank, and the sludge that rectangular sedimentation tank is discharged enters dirt
In mud thickener.
In above scheme, PH, which is adjusted, is equipped with PH auto-controller in pond, and feeds intake with what PH auto-controller was electrically connected
Device.
Further, PH, which adjusts pond and removes in lead reaction tank, is equipped with Pneumatic mixing device.
Further, mechanical stirring device is equipped in coagulation reaction tank and flocculation tank.
Further, intermediate pool connects sandfiltration pot by high-pressure pump.
Further, the grid aperture in grid collecting-tank is 5mm.
Further, the water outlet of grid collecting-tank is lower than the water inlet of conditioning tank, and setting level-one mentions in grid collecting-tank
For pumping waste water lifting into conditioning tank.
A kind of wastewater treatment method of lead refinery of the utility model, mainly comprises the steps that
(1) waste water initially enters grid collecting-tank, flows through the artificial grid that pitch-row is 5mm, is gone by grid interception function
Except floating material and suspended matter big in sewage, in grid collecting-tank, setting level-one, which is provided, pumps production waste water lifting to conditioning tank,
Regulating water quality water is to ensure the stable operation of subsequent processing units；
(2) it being added in PH adjustment pond by PH auto-controller control alkali, the pH value of waste water is controlled to 9.5 ± 0.5,
Centre makes fully reacting using Pneumatic mixing device；
(3) waste water of adjusted pH value is chemically reacted in except lead reaction tank, and the lead ion in waste water generates hydrogen-oxygen
Change lead sediment, except Pneumatic mixing device is arranged in lead reaction tank, the sediment for making fully reacting and ensuring to generate forms muddy water
Separation；
(4) waste water gravity flow after except lead reaction enters coagulation reaction tank, manually controls dosing coagulant PAC, PAC's is main
Chemical substance is aluminium polychloride, and aqueous solution is the hydrolysate between alchlor and aluminium hydroxide, band colloidal electric charge,
There is very strong adsorptivity to the suspended matter in water, mechanical stirring device is set in the reaction tank；
(5) the waste water gravity flow after coagulating enters flocculation tank, manually controls and adds flocculant PAM, and PAM is height
The polymer of molecule --- polyacrylamide makes to form " bridge between the particle being adsorbed herein using the acylamino- of polyacrylamide
Connection " generates floc sedimentation, accelerates the sinking of particulate, achieve the purpose that removal, and mechanical stirring device is arranged in the reaction tank；
(6) mud mixture after flocculation reaction flows through distribution reservoir, enters back into rectangular sedimentation tank, reduces to subsequent flat
The impact of flow settling pond；
(7) waste water flows automatically after distribution reservoir enters rectangular sedimentation tank, is separated by solid-liquid separation using gravitational settling；
(8) supernatant through sedimentation basin solid-liquid separation is kept in from intermediate pool is flowed into and is subsequent filter-press
Water source is provided.
(9) the intermediate waste water after pressurized remains after sand filtration removes tiny particles content, then through active carbon filtering absorption
Remaining organic matter and heavy metal lead ion are to ensure wastewater to reach standard；
(10) waste water after purified is kept in herein in case reuse.
Further, the sludge struck off after the sludge and advection sedimentation that generate after flocculation, which enters in sludge concentration tank, to be collected
Afterwards, then by sludge filter press it is dehydrated, forms dewatered sludge otherwise processed, and the filtrate after sludge dewatering is back in conditioning tank
Again it handles.
In above scheme, step (4) and PAC and PAM combination in step (5) reinforce coagulation and flocculating effect, assist to catch
Hydroxide precipitated metal is caught, and removes other polluters in water removal.
The utility model has the following beneficial effects: the utility model is used to handle the trade effluent of lead refinery, can not only return
Heavy metal resources are received, while purifying sewage, it is made to meet national emission standard.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the process flow chart of the utility model.
Specific embodiment:
Refering to Figure 1, being the structural schematic diagram of the preferred embodiment for the utility model, the utility model is one kind
The waste water treatment system of lead refinery, main includes grid collecting-tank 1, conditioning tank 2, PH the adjustment pond 3 for being sequentially connected setting, except lead
Reaction tank 4, coagulation reaction tank 5, flocculation tank 6, distribution reservoir 7, rectangular sedimentation tank 8, intermediate pool 9, sandfiltration pot 10, carbon filtration
Tank 11, reuse pool 12；The flocculation tank 6 dirt be discharged forms dry via sludge concentration tank 13, sludge filter press 14
Sludge；Wherein, rectangular sedimentation tank 8 enters in sludge concentration tank 13 with the sludge that flocculation reaction is discharged and collects, then by sludge
Filter press 14 carries out filters pressing and forms dewatered sludge.The pressing filtering liquid of sludge filter press 14 is back to conditioning tank 2, keeps dross and mud storage pool dirty
Mud transfers to qualified unit to dispose after being dehydrated by sludge filter press 14, and the filtrate after sludge dewatering flows back into adjusting
Pond 2 is handled again.
Grid aperture in grid collecting-tank 1 is 5mm, and the water outlet of grid collecting-tank 1 is lower than the water inlet of conditioning tank 2,
Level-one is set in grid collecting-tank 1 and provides pump by waste water lifting into conditioning tank 2, the capacity utilization in raising subsequent adjustment pond,
Regulating water quality water, can by big floating material, suspended matter that grid intercepts to ensure the stable operation of subsequent processing units
It directly transports outward, deals carefully with.
PH, which is adjusted, is equipped with PH auto-controller 31, and the cast feeder 32 being electrically connected with PH auto-controller 31 in pond 3, can
Automatic to launch alkaline material, the adjustment pond 3 such as NaOH, PH has reacted it with except Pneumatic mixing device is equipped in lead reaction tank 4
Entirely.
Be equipped with mechanical stirring device in coagulation reaction tank 5 and flocculation tank 6, can effectively avoid using pneumatic stirring and
Break up the agglomerate alumen ustum of generation.
Intermediate pool 9 by high-pressure pump connect sandfiltration pot 10, it is pressurized after intermediate waste water pass through sandfiltration pot 10 remove carefully
After small particle, then is filtered by charcoal filter tank 11 by active carbon and adsorb residual organic substances and heavy metal lead ion to ensure that waste water reaches
Mark, wherein sandfiltration pot 10 need to be backwashed periodically.
The wastewater treatment method of a kind of lead refinery of the utility model, as shown in Fig. 2, mainly comprising the steps that
(1) waste water initially enters grid collecting-tank, flows through the artificial grid that pitch-row is 5mm, is gone by grid interception function
Except floating material and suspended matter big in sewage, in grid collecting-tank, setting level-one, which is provided, pumps production waste water lifting to conditioning tank,
Regulating water quality water is to ensure the stable operation of subsequent processing units；
(2) it being added in PH adjustment pond by PH auto-controller control alkali, the pH value of waste water is controlled to 9.5 ± 0.5,
Centre makes fully reacting using Pneumatic mixing device；
(3) waste water of adjusted pH value is chemically reacted in except lead reaction tank, and the lead ion in waste water generates hydrogen-oxygen
Change lead sediment, except Pneumatic mixing device is arranged in lead reaction tank, the sediment for making fully reacting and ensuring to generate forms muddy water
Separation；
(4) waste water gravity flow after except lead reaction enters coagulation reaction tank, manually controls dosing coagulant PAC, PAC's is main
Chemical substance is aluminium polychloride, and aqueous solution is the hydrolysate between alchlor and aluminium hydroxide, band colloidal electric charge,
There is very strong adsorptivity to the suspended matter in water, to avoid breaing up the agglomerate alumen ustum of generation using pneumatic stirring, the reaction
Mechanical stirring device is set in pond；
(5) the waste water gravity flow after coagulating enters flocculation tank, manually controls and adds flocculant PAM, and PAM is height
The polymer of molecule --- polyacrylamide makes to form " bridge between the particle being adsorbed herein using the acylamino- of polyacrylamide
Connection " generates floc sedimentation, accelerates the sinking of particulate, achieve the purpose that removal, to avoid breaing up the big of generation using pneumatic stirring
Group's alumen ustum, the reaction tank is interior to be arranged mechanical stirring device；
(6) mud mixture after flocculation reaction flows through distribution reservoir, enters back into rectangular sedimentation tank, reduces to subsequent flat
The impact of flow settling pond；
(7) waste water flows automatically after distribution reservoir enters rectangular sedimentation tank, is separated by solid-liquid separation using gravitational settling, flat flow
Sedimentation basin is made of entery and delivery port, water flow part and sludge bucket, and pond body plane is rectangle, and inlet and outlet are respectively provided at the two of pond
End, import generally using flooding into water distributing hole, water by distribution reservoir by equally distributed inlet opening inflow pond body, behind inlet opening
Equipped with baffle, it is distributed in the wide cross section in entire pond with making uniform fluid flow；Outlet overflow weir, to guarantee the primary water after precipitating
Outlet canal can be uniformly flowed into along pond width, and scum trough and baffle are set before weir to retain water surface dross, water flow part is the main body in pond,
The pond of Precise spraying is wide and deeply certifiable cross-section of river water distribution of the water flow along pond in pond is uniform, slowly steadily flows according to design current velocity
It crosses.The sludge of bottom then passes through Travelling Mud Sucker and Scraper and drains into sludge concentration tank；
(8) supernatant through sedimentation basin solid-liquid separation is kept in from intermediate pool is flowed into and is subsequent filter-press
Water source is provided.
(9) the intermediate waste water after pressurized remains after sand filtration removes tiny particles content, then through active carbon filtering absorption
Remaining organic matter and heavy metal lead ion are to ensure wastewater to reach standard；
(10) waste water after purified is kept in herein in case reuse.
In addition, big floating material, suspended matter that grid intercepts can be transported outward directly, deals carefully with, generated after flocculation
The sludge struck off after sludge and advection sedimentation enters in sludge concentration tank after collection, then is dehydrated by sludge filter press, shape
At dewatered sludge otherwise processed, and the filtrate after sludge dewatering is back in conditioning tank and handles again.
Above-mentioned steps (4) and PAC and PAM combination in step (5), reinforce coagulation and flocculating effect, assist to capture hydrogen-oxygen
Change precipitated metal, and removes other polluters in water removal.
Certainly, illustrated above is only the preferred embodiment of the utility model, and the use of the utility model is not limited with this
Range, therefore, it is all made in the utility model principle it is equivalent change should be included in the protection scope of the utility model.
Claims (7)
1. a kind of waste water treatment system of lead refinery, it is characterised in that: main includes the grid collecting-tank for being sequentially connected setting
(1), conditioning tank (2), PH adjust pond (3), remove lead reaction tank (4), coagulation reaction tank (5), flocculation tank (6), distribution reservoir
(7), rectangular sedimentation tank (8), intermediate pool (9), sandfiltration pot (10), charcoal filter tank (11), reuse pool (12)；The flocculation is anti-
Ying Chi (6) dirt be discharged forms dewatered sludge via sludge concentration tank (13), sludge filter press (14)；Wherein, sludge filter press
(14) pressing filtering liquid is back to conditioning tank (2), and the sludge that rectangular sedimentation tank (8) is discharged enters in sludge concentration tank (13).
2. a kind of waste water treatment system of lead refinery according to claim 1, it is characterised in that: the PH adjusts pond (3)
In be equipped with PH auto-controller (31), and the cast feeder (32) being electrically connected with PH auto-controller (31).
3. a kind of waste water treatment system of lead refinery according to claim 2, it is characterised in that: the PH adjusts pond (3)
Pneumatic mixing device is equipped with removing in lead reaction tank (4).
4. a kind of waste water treatment system of lead refinery according to claim 1 or 2 or 3, it is characterised in that: the coagulation is anti-
Mechanical stirring device is equipped in Ying Chi (5) and flocculation tank (6).
5. a kind of waste water treatment system of lead refinery according to claim 1, it is characterised in that: the intermediate pool (9)
Sandfiltration pot (10) are connected by high-pressure pump.
6. a kind of waste water treatment system of lead refinery according to claim 1, it is characterised in that: the grid collecting-tank
(1) the grid aperture in is 5mm.
7. a kind of waste water treatment system of lead refinery according to claim 1 or 6, it is characterised in that: the grid catchments
The water outlet in pond (1) is lower than the water inlet of conditioning tank (2), and setting level-one, which provides, in grid collecting-tank (1) pumps waste water lifting extremely
In conditioning tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821198859.8U CN208995260U (en) | 2018-07-26 | 2018-07-26 | A kind of waste water treatment system of lead refinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821198859.8U CN208995260U (en) | 2018-07-26 | 2018-07-26 | A kind of waste water treatment system of lead refinery |
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| CN208995260U true CN208995260U (en) | 2019-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892276A (en) * | 2018-07-26 | 2018-11-27 | 广东新生环保科技股份有限公司 | A kind of waste water treatment system and its method of lead refinery |
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2018
- 2018-07-26 CN CN201821198859.8U patent/CN208995260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892276A (en) * | 2018-07-26 | 2018-11-27 | 广东新生环保科技股份有限公司 | A kind of waste water treatment system and its method of lead refinery |
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