CN106630305A - System and method for treating sewage after cleaning of HDPE (high-density polyethylene) recycling material - Google Patents
System and method for treating sewage after cleaning of HDPE (high-density polyethylene) recycling material Download PDFInfo
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- CN106630305A CN106630305A CN201710109165.6A CN201710109165A CN106630305A CN 106630305 A CN106630305 A CN 106630305A CN 201710109165 A CN201710109165 A CN 201710109165A CN 106630305 A CN106630305 A CN 106630305A
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- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 80
- 239000000463 material Substances 0.000 title claims abstract description 23
- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 22
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004064 recycling Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000010802 sludge Substances 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000001471 micro-filtration Methods 0.000 claims abstract description 8
- 238000005188 flotation Methods 0.000 claims description 27
- 238000001556 precipitation Methods 0.000 claims description 20
- 238000004062 sedimentation Methods 0.000 claims description 19
- 239000003814 drug Substances 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000009194 climbing Effects 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 abstract description 15
- 238000007667 floating Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000003911 water pollution Methods 0.000 description 3
- 239000003599 detergent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009852 coagulant defect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
-
- 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
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a system and a method for treating sewage after cleaning of a HDPE (high-density polyethylene) recycling material. The method comprises the following steps of sending sewage of a crushing and cleaning machine into a sewage tank, performing primary setting in a primary settling tank after microfiltration, adding PAC (polymeric aluminum) and PAM (polyacrylamide) into an air floating tank, separating sludge, oil and water, dosing and settling in the primary setting tank and a secondary settling tank, and performing deep settling in an intermediate tank; finally, filtering by a fiber sphere filter and an activated carbon filter, using as clean water, and sending into the crushing and cleaning machine, so as to complete one cycle. The sewage treatment system has the advantages that a circulating water system is formed in the whole production process, the water quality meets the requirement of cleaning recycling material, the problem of water resource is solved, and the pollution to water quality is avoided.
Description
Technical field
The invention belongs to sewage treatment area, and in particular to one kind cleaning HDPE reclaimed materials sewage disposal system and method.
Background technology
Sewage disposal at present is the difficult problem that country and the world face, and water pollution is increasingly severe, causes water resource tight
Lack again.With the development of industrial enterprise, industrial water consumption and pollution level are also increasing, so sewage disposal seems
It is particularly important.In regeneration industry, especially reclaimed materials itself is relatively more containing impurity such as silts, and most of HDPE reclaimed materials is charge of oil
The container of fat, newborn class, the sewage after cleaning is difficult to process, and at present major part sewage disposal technology is for municipal sewage
Design, small business does not have sewage disposal device and technology, all selects outer row, causes water resource severe contamination.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided one kind cleaning HDPE reclaimed materials sewage disposal system and side
Method, not only operating cost is low, and the not outer row of sewage, does not result in water pollution.
In order to achieve the above object, a kind of broken washing machine sewage pipe of cleaning HDPE reclaimed materials sewage disposal systems, including connection
Cesspool, cesspool connects preliminary sedimentation tank after micro-filtration, and preliminary sedimentation tank connects flotation tank by elevator pump, and the sewage of flotation tank goes out
The heavy pond of mouth connection one, the outlet of sewer connection second pond in a heavy pond, the outlet of sewer of second pond connects intermediate pool, and intermediate pool is successively
Connect clear water reserviors after fiber ball filter and active carbon filter, the broken washing machine of clear water reserviors connection, flotation tank is connected with first
Dosing pump, a heavy pond is connected with the second dosing pump, and second pond is connected with the 3rd dosing pump.
The flotation tank includes reative cell and the contact chamber being connected, and the dirt of connection elevator pump is offered on the wall of reative cell side
Water inlet, offers outlet of sewer on the side wall of contact chamber, reaction interior is provided with reative cell agitator, and contact interior is provided with
Slag Scraping Device, air dissolved pump accesses the release pipe in contact chamber after knockout drum, and contact chamber top is provided with oil drain out, bottom
It is provided with discharge pipeline.
The sewage inlet is arranged in same level with oil drain out, and the discharge pipeline and oil drain out of flotation tank connect respectively
Sludge-tank and contaminated-oil basin.
Described one heavy pond includes the first mud chamber and the second mud chamber being connected, and offers on the side wall of the first mud chamber
Sewage inlet, the first precipitation interior is provided with a heavy pond agitator, offers outlet of sewer on the side wall of the second mud chamber, and second
Precipitation interior is provided with two-layer one and sinks pond inclined tube, and a heavy pond inclined tube and horizontal plane angle are 60 °, and two-layer one is sunk pond inclined tube and reversely set
Put, the second mud chamber bottom is provided with some one heavy pond perforated sludge discharge pipes, and between an adjacent heavy pond perforated sludge discharge pipe dirt is provided with
Bucket；
The second pond includes the first mud chamber and the second mud chamber being connected, and offers on the side wall of the first mud chamber
Sewage inlet, the first precipitation interior is provided with second pond agitator, offers outlet of sewer on the side wall of the second mud chamber, and second
Precipitation interior is provided with one layer of second pond inclined tube, and second pond inclined tube is 60 ° with horizontal plane angle, and the second mud chamber bottom is provided with
Second pond perforated sludge discharge pipe, between adjacent second pond perforated sludge discharge pipe sludge bucket is provided with.
The cesspool connects demulsifier dosing pump.
The flotation tank, a heavy pond and second pond are all connected with sludge-tank, sludge-tank connection filter press.
The preliminary sedimentation tank is connected with filter.
A kind of method of cleaning HDPE reclaimed materials sewage disposal systems, comprises the following steps：
Step one, the sewage that broken washing machine is ejected enters cesspool, after first pass around micro-filtration and remove solid impurity, solid is miscellaneous
Matter is periodically discharged on the screen pack on preliminary sedimentation tank；
Step 2, remove the sewage of solid impurity carries out precipitation process into preliminary sedimentation tank, by elevator pump dirty after just sinking
Water is extracted in flotation tank from preliminary sedimentation tank, and flotation tank is first passed through equipped with PAC dosings system equipped with PAC dosing pumps and PAM dosing pumps, sewage
The reaction tank of system, then through the reaction tank equipped with PAM medicine systems, muddy thing, sewage and medicament flow to contact chamber, are removed
Little oil droplet stick on micro air bubble with water, gas, the interfacial tension of oily three-phase mixture, bubble rising buoyancy and hydrostatic pressing
On climbing up on top of the water under the collective effect of many kinds of force such as power difference, oil substances blow into ash pit by Slag Scraping Device, then collect, contact
The sewage of room sinks to bottom and discharges into contaminated-oil basin by discharge pipeline through fully reflection, sludge；
Step 3, sewage enters a heavy pond, and a heavy pond is equipped with PAC and PAM medicine systems, according to sewage disposal situation again
Agent-feeding treatment, a heavy pond sinks pond inclined tube and is precipitated by two-layer one；
Step 4, if sewage pollution degree is than more serious, the heavy reacted sewage in pond is not reaching to require, opens two and sinks
PAC the and PAM medicine systems in pond, second pond is equipped with one layer of second pond inclined tube, PAM and PAC chemical feeding quantities are according to sewage pollution degree
It is adjusted；
Step 5, the form of the water overflow that second pond has been processed flows into intermediate pool, carries out depth precipitation；
Step 6, by depth oettIed sewage by fiber ball filter and active carbon filter, the water after process
In being stored in clear water reserviors, the water in clear water reserviors sends into broken washing machine cleaning, forms a circulatory system.
In the step one, demulsifier is added in cesspool.
Compared with prior art, the present invention is sunk after micro-filtration by the way that the sewage of broken washing machine is passed through in cesspool just
It is just heavy that pond is carried out, then PAC and PAM is added in flotation tank, and mud, oil, water are separated, and a heavy pond and two is entered after separation
Dosing and precipitation are carried out in heavy pond, after enter back into intermediate pool and carry out depth precipitation, finally by fiber ball filter and activated carbon
Filter is sent in broken washing machine after filtering as clear water, completes a circulation, and the present invention defines one in whole production process
Individual circulation, not only water quality disclosure satisfy that the requirement of clean and reuse material, and also solve the problem of water resource, Bu Huizao
Into water pollution.
Description of the drawings
Fig. 1 is the system construction drawing of the present invention；
Fig. 2 is the schematic diagram of flotation tank in the present invention；
Fig. 3 is the schematic diagram in a heavy pond in the present invention；
Fig. 4 is the schematic diagram of second pond in the present invention；
Fig. 5 is the schematic diagram of fiber ball filter and active carbon filter in the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention will be further described.
Referring to Fig. 1 to Fig. 5, one kind cleaning HDPE reclaimed materials sewage disposal systems, including the dirt of the broken washing machine sewage pipe of connection
Pond 1, the connection demulsifier of cesspool 1 dosing pump 19, cesspool 1 was connected with by connecting preliminary sedimentation tank 3, preliminary sedimentation tank 3 after micro-filtration 2
Filter 12, preliminary sedimentation tank 3 connects flotation tank 5, the heavy pond 6 of outlet of sewer connection one of flotation tank 5, the dirt in a heavy pond 6 by elevator pump 4
Water out connects second pond 7, and the outlet of sewer connection intermediate pool 8 of second pond 7, intermediate pool 8 passes sequentially through the He of fiber ball filter 9
Connect clear water reserviors 11, the broken washing machine of the connection of clear water reserviors 11 after active carbon filter 10, flotation tank 5 is connected with the first dosing pump 16, one
Heavy pond 6 is connected with the second dosing pump 17, and second pond 7 is connected with the 3rd dosing pump 18.
Flotation tank 5 includes reative cell and the contact chamber being connected, and the sewage of connection elevator pump 4 is offered on the wall of reative cell side
Entrance 5-1, offers outlet of sewer 5-8 on the side wall of contact chamber, reaction interior is provided with reative cell agitator 5-2, contact chamber
Slag Scraping Device 5-3 is inside provided with, air dissolved pump 5-6 accesses the release pipe 5-4 in contact chamber, contact chamber after knockout drum 5-5
Top is provided with oil drain out 5-9, and bottom is provided with discharge pipeline 5-7, sewage inlet 5-1 and oil drain out 5-9 and is arranged on same level
On face, the discharge pipeline 5-7 and oil drain out 5-9 of flotation tank 5 connect respectively sludge-tank 14 and contaminated-oil basin 13.
One heavy pond 6 includes the first mud chamber and the second mud chamber being connected, and on the side wall of the first mud chamber dirt is offered
Water inlet 6-1, the first precipitation interior is provided with a heavy pond agitator 6-2, and on the side wall of the second mud chamber outlet of sewer is offered,
Second precipitation interior is provided with two-layer one and sinks pond inclined tube 6-3, and a heavy pond inclined tube 6-3 and horizontal plane angle are 60 °, and two-layer one sinks pond
Inclined tube 6-3 is oppositely arranged, and the second mud chamber bottom is provided with some one heavy pond perforated sludge discharge pipe 6-4, an adjacent heavy pond perforation
Sludge bucket 6-5 is provided between discharge pipeline 6-4；
Second pond 7 includes the first mud chamber and the second mud chamber being connected, and on the side wall of the first mud chamber dirt is offered
Water inlet, the first precipitation interior is provided with second pond agitator 7-1, and on the side wall of the second mud chamber outlet of sewer is offered, the
Two precipitation interiors are provided with one layer of second pond inclined tube 7-2, and second pond inclined tube 7-2 is 60 ° with horizontal plane angle, the second mud chamber bottom
Portion is provided with second pond perforated sludge discharge pipe 7-3, and between adjacent second pond perforated sludge discharge pipe 7-3 sludge bucket 7-4 is provided with.
The heavy pond 6 of flotation tank 5, one and second pond 7 are all connected with sludge-tank 14, the connection filter press 15 of sludge-tank 14.
A kind of method of cleaning HDPE reclaimed materials sewage disposal systems, comprises the following steps：
Step one, the sewage that broken washing machine is ejected enter cesspool 1, after first pass around micro-filtration 2 remove solid impurity, solid
Impurity is periodically discharged on the screen pack on preliminary sedimentation tank 3；
Step 2, remove the sewage of solid impurity carries out precipitation process into preliminary sedimentation tank 3, and elevator pump 4 is passed through after just sinking
Sewage is extracted in flotation tank 5 from preliminary sedimentation tank 3, and flotation tank 5 is first passed through equipped with PAC equipped with PAC dosing pumps and PAM dosing pumps, sewage
The reaction tank of medicine system, then through the reaction tank equipped with PAM medicine systems, muddy thing, sewage and medicament flow to contact chamber,
Removed little oil droplet stick on micro air bubble with water, gas, the interfacial tension of oily three-phase mixture, bubble rising buoyancy and
On climbing up on top of the water under the collective effect of many kinds of force such as hydrostatic pressure difference, oil substances blow into ash pit, Ran Houshou by Slag Scraping Device
Collection, through fully reflection, sludge sinks to bottom and discharges into contaminated-oil basin 13 by discharge pipeline 5-7 the sewage of contact chamber；
Step 3, sewage enters a heavy pond 6, and a heavy pond 6 is equipped with PAC and PAM medicine systems, according to sewage disposal situation again
Secondary agent-feeding treatment, a heavy pond 6 sinks pond inclined tube 6-3 and is precipitated by two-layer one；
Step 4, if sewage pollution degree is than more serious, the heavy reacted sewage in pond 6 is not reaching to require, opens two
PAC the and PAM medicine systems in heavy pond 7, second pond is equipped with one layer of second pond inclined tube 7-2, PAM and PAC chemical feeding quantities are according to Sewage
Dye degree is adjusted；
Step 5, the form of the water overflow that second pond 7 has been processed flows into intermediate pool, carries out depth precipitation；
Step 6, by depth oettIed sewage by fiber ball filter 9 and active carbon filter 10, after process
Water is stored in clear water reserviors 11, and the water in clear water reserviors 11 sends into broken washing machine cleaning, forms a circulatory system.
Preferably, demulsifier is added in cesspool 1, if opening demulsifier dosing system in the case that air flotation effect is bad
System.
Breakdown of emulsion medicine system principle：There is the little liquid pearl of dispersion phase of substantial amounts of emulsion in sewage, in the presence of demulsifier
Aggregation is agglomerating, forms big drop, finally separates out water-oil phase layering.
This technology selects PAC (aluminium polychloride) to do coagulating system medicament, and dirty impurities in water varies, tiny
Suspended impurity settlement polar is slow, or even is bordering on and does not sink, and micelle keeps dispersion in water, it is impossible to settle, after coagulant effect, water
In tiny suspended impurity and it is de- steady after micelle and medicament mutually bond become that size is larger, naked eyes are visible, easily heavy easily filter
Flco.Flco thing after the absorption PAC effects of PAM (polyacrylamide) flocculant, plays connection bridging action between flco thing, makes
Little flco forms larger floc sedimentation, accelerates settling velocity.
Air-floating apparatus system principle, the device selects dissolved air flotation, and the method is gas and liquid in gas night mixing pump
Being sufficiently mixed under certain pressure makes air be dissolved in the water and reaches saturation state, and substantial amounts of micro- gas is produced in gas night knockout drum
Bubble, forms water, gas and removed three mixtures, in interfacial tension, bubble rising buoyancy and hydrostatic pressing after release pipe
Under the collective effect of many kinds of force such as power difference, after promoting micro air bubble to stick in removed tiny oil droplets, because bonding volume density
The water surface is floated to less than water, so that the elaioleucite in water is separated removal.And have substantial amounts of coagulation in contact chamber
Flco thing after agent effect, flco has network structure, easy voids, so as to improve daf efficiency.Furthermore, clean HDPE
Contain substantial amounts of detergent container in reclaimed materials, the detergent of residual can form foam, also have attachment suspended particulate to go up together
The effect for rising.
The design parameter in one heavy pond：
1st, a heavy pond inclined tube aperture is typically no less than 50mm, inclined tube length typically in 1.0-1.2m or so, double-deck inclined tube direction
Contrary to install, inclined tube length is identical.
2nd, the upper strata of a heavy pond inclined tube should have the depth of water of 0.5-1.0m, be waste water distributed area under inclined tube, and general height is not little
In 0.5m, bottom makes infundibulate sludge bucket, and perforated sludge discharge pipe is housed between sludge bucket.Discharge pipeline connects sludge-tank.
3rd, water inlet is catchmented using many round pipes, and water accumulation pipe eyelet is away from low more than the 50cm in pond, delivery port 2cm below the water surface
Place, prevents floating thing to be pulled away；
4th, a heavy pond inclined tube is horizontal by 60 ° of angles.
As a heavy pond, water inlet is changed and does overfall water inlet second pond design parameter, and double-deck inclined tube is changed to individual layer inclined tube,
Remove upper strata inclined tube then good.
Claims (9)
1. it is a kind of to clean HDPE reclaimed materials sewage disposal systems, it is characterised in that including the cesspool of the broken washing machine sewage pipe of connection
(1), cesspool (1) connects afterwards preliminary sedimentation tank (3) by micro-filtration (2), and preliminary sedimentation tank (3) connects flotation tank (5) by elevator pump (4),
The outlet of sewer connection one heavy pond (6) of flotation tank (5), outlet of sewer connection second pond (7) of one heavy pond (6), second pond (7)
Outlet of sewer connection intermediate pool (8), intermediate pool (8) is passed sequentially through and connected after fiber ball filter (9) and active carbon filter (10)
Clear water reserviors (11), the broken washing machine of clear water reserviors (11) connection are connect, flotation tank (5) is connected with the first dosing pump (16), heavy pond (6) connection
There is the second dosing pump (17), second pond (7) is connected with the 3rd dosing pump (18).
2. one kind according to claim 1 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that the flotation tank
(5) including the reative cell and contact chamber being connected, the sewage inlet (5-1) of connection elevator pump (4) is offered on the wall of reative cell side,
Outlet of sewer (5-8) is offered on the side wall of contact chamber, reaction interior is provided with reative cell agitator (5-2), and contact interior sets
Slag Scraping Device (5-3) is equipped with, air dissolved pump (5-6) is accessed afterwards the release pipe (5-4) in contact chamber by knockout drum (5-5), connect
Tactile room top is provided with oil drain out (5-9), and bottom is provided with discharge pipeline (5-7).
3. one kind according to claim 2 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that the sewage enters
Mouth (5-1) is arranged in same level with oil drain out (5-9), the discharge pipeline (5-7) and oil drain out (5-9) point of flotation tank (5)
Lian Jie not sludge-tank (14) and contaminated-oil basin (13).
4. one kind according to claim 1 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that described one heavy pond
(6) including the first mud chamber and the second mud chamber being connected, sewage inlet (6-1) is offered on the side wall of the first mud chamber,
First precipitation interior is provided with a heavy pond agitator (6-2), and outlet of sewer, the second precipitation are offered on the side wall of the second mud chamber
Interior is provided with two-layer one and sinks pond inclined tube (6-3), and a heavy pond inclined tube (6-3) and horizontal plane angle are 60 °, and two-layer one sinks pond inclined tube
(6-3) oppositely arranged, the second mud chamber bottom is provided with some one heavy pond perforated sludge discharge pipes (6-4), an adjacent heavy pond perforation
Sludge bucket (6-5) is provided between discharge pipeline (6-4)；
The second pond (7) includes the first mud chamber and the second mud chamber that are connected, offers on the side wall of the first mud chamber
Sewage inlet, the first precipitation interior is provided with second pond agitator (7-1), offers sewage on the side wall of the second mud chamber and goes out
Mouthful, the second precipitation interior is provided with one layer of second pond inclined tube (7-2), and second pond inclined tube (7-2) is 60 ° with horizontal plane angle, the
Two mud chambers bottom are provided with second pond perforated sludge discharge pipe (7-3), and between adjacent second pond perforated sludge discharge pipe (7-3) dirt is provided with
Bucket (7-4).
5. one kind according to claim 1 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that the cesspool
(1) demulsifier dosing pump (19) is connected.
6. one kind according to claim 1 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that the flotation tank
(5), one heavy pond (6) and second pond (7) are all connected with sludge-tank (14), sludge-tank (14) connection filter press (15).
7. one kind according to claim 1 cleans HDPE reclaimed materials sewage disposal systems, it is characterised in that the preliminary sedimentation tank
(3) it is connected with filter (12).
8. the method for a kind of cleaning HDPE reclaimed materials sewage disposal systems described in claim 1, it is characterised in that including following
Step：
Step one, the sewage that broken washing machine is ejected enter cesspool (1), after first pass around micro-filtration (2) remove solid impurity, solid
Impurity is periodically discharged on the screen pack on preliminary sedimentation tank (3)；
Step 2, remove solid impurity sewage carry out precipitation process into preliminary sedimentation tank (3), just sink after pass through elevator pump (4)
Sewage is extracted in flotation tank (5) from preliminary sedimentation tank (3), and flotation tank (5) first passes through dress equipped with PAC dosing pumps and PAM dosing pumps, sewage
There is the reaction tank of PAC medicine systems, then through the reaction tank equipped with PAM medicine systems, muddy thing, sewage and medicament flow to and connect
Tactile room, removed little oil droplet is sticked on micro air bubble as water, gas, the interfacial tension of oily three-phase mixture, bubble rise
On climbing up on top of the water under the collective effect of many kinds of force such as buoyancy and hydrostatic pressure difference, oil substances blow into ash pit by Slag Scraping Device,
Then collect, through fully reflection, sludge sinks to bottom and discharges into contaminated-oil basin (13) by discharge pipeline (5-7) sewage of contact chamber；
Step 3, sewage enters one heavy pond (6), one heavy pond (6) equipped with PAC and PAM medicine systems, according to sewage disposal situation again
Secondary agent-feeding treatment, one heavy pond (6) sink pond inclined tube (6-3) and are precipitated by two-layer one；
Step 4, if sewage pollution degree is than more serious, heavy pond (6) reacted sewage is not reaching to require, opens two and sinks
PAC the and PAM medicine systems in pond (7), second pond is equipped with one layer of second pond inclined tube (7-2), PAM and PAC chemical feeding quantities are according to sewage
Pollution level is adjusted；
Step 5, the form of the water overflow that second pond (7) has been processed flows into intermediate pool, carries out depth precipitation；
Step 6, by depth oettIed sewage by fiber ball filter (9) and active carbon filter (10), after process
Water is stored in clear water reserviors (11), and the water in clear water reserviors (11) sends into broken washing machine cleaning, forms a circulatory system.
9. a kind of method of cleaning HDPE reclaimed materials sewage disposal systems according to claim 8, it is characterised in that institute
In stating step one, demulsifier is added in cesspool (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109165.6A CN106630305A (en) | 2017-02-27 | 2017-02-27 | System and method for treating sewage after cleaning of HDPE (high-density polyethylene) recycling material |
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| CN201710109165.6A CN106630305A (en) | 2017-02-27 | 2017-02-27 | System and method for treating sewage after cleaning of HDPE (high-density polyethylene) recycling material |
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| CN108862928A (en) * | 2018-07-31 | 2018-11-23 | 力颖自动化设备（昆山）有限公司 | Environment friendly washing Intergration system |
| CN114291928A (en) * | 2021-12-27 | 2022-04-08 | 淮安市飞翔高新包装材料有限公司 | Papermaking waste water environmental protection processing system |
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