CN208362068U - A kind of sewage disposal system containing zinc ion - Google Patents
A kind of sewage disposal system containing zinc ion Download PDFInfo
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- CN208362068U CN208362068U CN201820779445.8U CN201820779445U CN208362068U CN 208362068 U CN208362068 U CN 208362068U CN 201820779445 U CN201820779445 U CN 201820779445U CN 208362068 U CN208362068 U CN 208362068U
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Abstract
The utility model discloses a kind of sewage disposal system and processing method containing zinc ion, the processing system adjusts pond and the adjustment pond the 2nd pH using the first pH to adjust pH value step by step, it adjusts more accurate, then go over unprecipitated suspended matter by sand filter and carbon filtering pool, metal cation is replaced finally by ionic reaction pond, the sewage disposal system can effectively remove zinc ion, make sewage qualified discharge.
Description
Technical field
The utility model relates to a kind of sewage disposal systems containing zinc ion.
Background technique
Instantly, have in the raw materials technology of part metals drawing mill using to galvanized steel, the pickling galvanized steel the step of
In can generate zinc ion.And the discharge standard of zinc ion is 1mg/L at present, it is therefore desirable at the waste water containing zinc ion
Reason, keeps its up to standard.However since the precipitate zinc hydroxide of zinc is amphoteric hydroxide, amphoteric hydroxide is both dissolved in strong acid,
It is dissolved in highly basic again, therefore when chemical Treatment contains the sewage of zinc ion, difficulty is big, zinc ion is more difficult to be completely removed, and is held
Easily there is exceeded phenomenon.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of sewage disposal system containing zinc ion, the sewage
Processing system can effectively remove zinc ion, make sewage qualified discharge.
In order to solve the above technical problems, the technical solution of the utility model is: a kind of sewage disposal system containing zinc ion,
Including
The entrance of conditioning tank, the conditioning tank is connect with wastewater influent general pipeline；
First pH adjusts pond, and the entrance in the first pH adjustment pond is connected to the outlet conduit of conditioning tank, and the first pH is adjusted on pond
It is provided with pH meter and first and adds alkali adding tube, first adds alkali adding tube and add alkali system connectivity；
First coagulation reaction tank, pipeline connects between the entrance of first coagulation reaction tank and the outlet in the first pH adjustment pond
It is logical, PAC addition nozzle and PAM addition nozzle are provided in the first coagulation reaction tank；
First inclined-tube sedimentation tank, pipeline connects between the entrance of first inclined-tube sedimentation tank and the outlet of the first coagulation reaction tank
Logical, the top of the first inclined-tube sedimentation tank is provided with supernatant outlet, and bottom is provided with sludge outlet；
2nd pH adjusts pond, the supernatant outlet of the entrance in the 2nd pH adjustment pond and first inclined-tube sedimentation tank it
Between pipeline be connected to, be provided with pH meter and second plus alkali pipe on the 2nd pH adjustment pond, second plus alkali Guan Yujia alkali system connectivity；It is described
Second plus alkali pipe include that the several groups being set in the 2nd pH adjustment pond add alkali adding tube group, every group adds the alkali adding tube group to include
The vertical plus alkali pipe being vertically arranged is provided at least two distribution pipeline sections vertically plus on alkali pipe, and the caliber for distributing pipeline section, which is greater than, to be erected
Directly add the caliber of alkali pipe, several levels are evenly distributed on each distribution pipeline section plus alkali pipe, every level add alkali Guan Shangjun
It is provided with four rows and adds alkali hole, which adds alkali hole to be located at horizontal plus alkali pipe upside, downside, left side, right side；
Second coagulation reaction tank, pipeline connects between the entrance of second coagulation reaction tank and the outlet in the 2nd pH adjustment pond
It is logical, PAC addition nozzle and PAM addition nozzle are provided in second coagulation reaction tank；
Second inclined-tube sedimentation tank, pipeline connects between the entrance of second inclined-tube sedimentation tank and the outlet of the second coagulation reaction tank
Logical, the top of the second inclined-tube sedimentation tank is provided with supernatant outlet, and bottom is provided with sludge outlet；
Sand filter, the quantity of the sand filter are two, sewage inlet are provided at the top of each sand filter and wash-off of turning one's coat
Mouthful, the sewage inlet of each sand filter passes through the supernatant outlet of the first water inlet distribution selection pipeline and the second inclined-tube sedimentation tank
Connection；Several layers sand grains filtrate is provided in the sand filter, from top to bottom partial size becomes larger the partial size of sand grains filtrate；Each sand filtration
The bottom of pond in pond, which is provided with to turn one's coat, washes mouth, outlet of sewer；
Carbon filtering pool；The quantity of the carbon filtering pool is two, sewage inlet is provided at the top of each carbon filtering pool and wash-off of turning one's coat
Mouthful, the sewage inlet of each carbon filtering pool passes through the second water inlet distribution selection pipeline and is connected to the outlet of sewer of sand filter；It is described
Several layers carbon leaching material is provided in carbon filtering pool, the granularity of carbon leaching material from top to bottom becomes larger；The bottom of pond of each carbon filtering pool
It is provided with to turn one's coat and washes mouth, outlet of sewer；The turning one's coat of the carbon filtering pool washes mouth, turning one's coat for sand filter washes mouth and be with washing
System connection, the turning one's coat of the carbon filtering pool washes out mouth, turning one's coat for sand filter washes out mouth and be connected to washing water return pipeline.
Ion exchange pond；The quantity in the ion exchange pond is two, is provided with sewage at the top of each ion exchange pond and enters
Mouth and pickling outlet, bottom are provided with outlet of sewer and pickling entrance, and the sewage inlet in the ion exchange pond passes through third
It is connected between water inlet distribution selection pipeline and the outlet of sewer of carbon filtering pool, hydrogen form cation friendship is provided in each ion exchange pond
Resin particle is changed, the pickling entrance in the ion exchange pond is connected with sulfuric acid adding tube, and the pickling outlet is connected with pickling
Liquid recovery tube；
Pond is demodulated, pipeline is connected between the entrance and the outlet of sewer in each ion exchange pond for demodulating pond, is demodulated on pond
Third is provided with to add alkali adding tube and recapture medicament adding tube；
Reuse pool, pipeline is connected between the entrance of the reuse pool and the outlet for demodulating pond, is arranged on reuse pool
There is discharge outlet；
The sludge of the sludge outlet of sludge-tank, the entrance of the sludge-tank and the first inclined-tube sedimentation tank, the second inclined-tube sedimentation tank
Pipeline is connected between outlet, and the outlet of sludge-tank is connect with filter press.
Preferably, the water wash system includes washing pump, and the water inlet pipe of the washing pump is connected to reuse pool, described
The outlet pipe of washing pump turns one's coat with carbon filtering pool wash mouth respectively, turning one's coat for sand filter washes mouth and be connected to, the washing water return pipeline
Water outlet be connected to conditioning tank.
Preferably, the number of plies of the sand grains filtrate in the sand filter is five layers, and from top to bottom respectively first layer sand grains is filtered
Material, second layer sand grains filtrate, third layer sand grains filtrate, the 4th layer of sand grains filtrate and layer 5 sand grains filtrate, the filter of first layer sand grains
The partial size of material is 0.5-1.2mm, and the partial size of second layer sand grains filtrate is 2-4mm, and the partial size of third layer sand grains filtrate is 4-8mm,
The partial size of 4th layer of sand grains filtrate is 8-16mm, and the partial size of layer 5 sand grains filtrate is 16-32mm.
Preferably, the number of plies of carbon leaching material is five layers, and the thickness degree of carbon leaching material is 50mm, and partial size is from bottom to top
It is arranged as 8-16mm, 4-8mm, 2-4mm, 4-8mm, 8-16mm.
Preferably, the knot of second plus alkali pipe of the 2nd pH conditioning tank of first plus the alkali adding tube in the first pH adjustment pond
Structure is identical.
Preferably, pH meter in the adjustment pond the first pH and the 2nd pH conditioning tank is equal and to be distributed in different depths by two
Degree.
After above-mentioned technical proposal, the effect of the utility model is: the sewage disposal system is led to using precipitating twice
The pH value of the first pH adjustment pond adjustment sewage is crossed, and then produces the precipitating of zinc hydroxide, so that the zinc ion of a part is first removed,
Then it is adjusted again by the 2nd pH and carries out pH value accurate adjustment in pond, adjusted by pH twice, it can be excessive to avoid pH value adjusting range
And cause adjustment not in time, meanwhile, by the adjustment of pH twice can accurate pH value, make its control within the scope of 8.5-9.5, it is full
The best precipitated form of sufficient zinc ion, and simultaneously, lye can be made in the shortest time using second plus alkali pipe of special construction
It is sufficiently mixed with sewage, the pH value in entire 2nd pH adjustment pond adjusts completion within the shortest time in this way, then pH meter is examined
The pH value of measuring point is accurate, and reacts the pH value in entire 2nd pH adjustment pond in the shortest possible time, in this way may be used
Accomplish the accurate control of pH value.In addition, carrying out classified filtering using sand filter and carbon filtering pool, accurately after by precipitating twice
Take out sewage in unprecipitated suspended particulate；Finally, after above-mentioned processing, enter back into ion exchange pond carry out from
Zinc ion is further taken out in son exchange completely, and the zinc ion being discharged in this way can be less than 1mg/L, and demodulating in pond can pass through
Addition lye adjusts water outlet pH value (ion exchange has displaced hydrogen ion in pond, makes water quality in acidity), may then pass through and add
Enter to recapture medicament, recapture under medicament room temperature as white powder, solution is colourless transparent liquid, can with metal ion (zinc from
Son) strongly combine, harmless sludge not soluble in water is generated, the current all process facilities in road may break down in some stage
When, is unable to handle zinc ion up to standard, then needs to add to recapture medicament.
Again since the water wash system includes washing pump, the water inlet pipe of the washing pump is connected to reuse pool, described
The outlet pipe of washing pump turns one's coat with carbon filtering pool wash mouth respectively, turning one's coat for sand filter washes mouth and be connected to, the washing water return pipeline
Water outlet be connected to conditioning tank, the water wash system is using the water up to standard in reuse pool as backwash liquid, by turning one's coat
Operation is washed, the activation recovering of the sand grains filtrate in sand filter, the carbon leaching material in carbon filtering pool can be made.
Again since the number of plies of the sand grains filtrate in the sand filter is five layers, from top to bottom respectively first layer sand grains is filtered
Material, second layer sand grains filtrate, third layer sand grains filtrate, the 4th layer of sand grains filtrate and layer 5 sand grains filtrate, the filter of first layer sand grains
The partial size of material is 0.5-1.2mm, and the partial size of second layer sand grains filtrate is 2-4mm, and the partial size of third layer sand grains filtrate is 4-8mm,
The partial size of 4th layer of sand grains filtrate is 8-16mm, and the partial size of layer 5 sand grains filtrate is 16-32mm, and this arrangement can be more
Added with effect and it is reliable stack sand grains filtrate, partial size it is big be placed on bottom, partial size stacking is then gradually reduced, that one small particle
Sand grains filtrate will be filled in the gap between the large-sized sand grains filtrate of lower part, so i.e. ensure that sewage treatment imitate
Fruit, while also ensuring enough water flows.
First due to the first pH adjustment pond adds the knot of second plus alkali pipe of the 2nd pH conditioning tank of alkali adding tube again
Structure is identical, in this way, the lye in the first pH adjustment pond more rapid can also be mixed with sewage, pH value adjustment is also rapider, more quasi-
Really.
The utility model also provides a kind of sewage water treatment method containing zinc ion, which has used above-mentioned
Sewage disposal system, comprising the following steps:
S1, the sewage containing zinc ion is sent into conditioning tank and is collected；
S2, the sewage in conditioning tank is sent in the first pH adjustment pond, hydroxide is added using first plus alkali adding tube
Sodium, and pH value is detected using pH meter, the pH value in control the first pH adjustment pond is 6-9；
S3, the sewage in the first pH adjustment pond is sent in the first coagulation reaction tank, successively adds 10% mass ratio
PAC solution and 0.1% mass ratio PAM solution, wherein the additive amount of PAC is 100-400ppm, and the additive amount of PAM is 1-5ppm；
S4, the sewage in the first coagulation reaction tank is sent in the first inclined-tube sedimentation tank and is precipitated 2-3 hours, supernatant is sent
Enter into the 2nd pH adjustment pond, the sludge of bottom of pond is discharged into sludge-tank；
S5, the 2nd pH is adjusted in pond by second plus alkali pipe and adds sodium hydroxide, wherein sodium hydroxide solution passes through perpendicular
It directly plus after the entrance of alkali pipe is assigned in each horizontal plus alkali pipe, level plus alkali pipe are in different height, and sodium hydroxide solution leads to
It crosses each row plus alkali hole is evenly spread in the 2nd pH adjustment pond, the pH value in the 2nd pH adjustment pond is monitored using pH meter, and make pH value
Control is between 8.5-9.5；
S6, enter in the second coagulation reaction tank by the 2nd pH adjustment pond sewage adjusted, successively add 10% mass
The PAC solution of ratio and 0.1% mass ratio PAM solution, wherein the additive amount of PAC is 100-400ppm, and the additive amount of PAM is 1-
5ppm；
Sewage in S7, the second coagulation reaction tank is sent in the second inclined-tube sedimentation tank and precipitates 2-3 hours, and supernatant is sent into
Into one of sand filter, two sand filter a preparation and a use, the suspended particulate in sewage is flowed into after sand filter filters
It enters back into carbon filtering pool and filters in carbon filtering pool, carbon filtering pool a preparation and a use, the sludge in the second inclined-tube sedimentation tank is sent to sludge-tank
In, final sludge is sent into filter press compression；
S8, it is sent in ion exchange pond by sand filter and the filtered sewage of carbon filtering pool, ion exchange is filled in pond
There is hydrogen type cation exchange resin, the zinc ion retained in sewage is exchanged with the hydrogen ion in hydrogen type cation exchange resin,
Final zinc ion is attracted in exchanger resin；
S9, the sewage after ion exchange, which are sent to, to be demodulated in pond, and the pH value demodulated in pond is detected using pH meter, is passed through
Sodium hydroxide solution control pH value is added between 6-9；
S10, the sewage demodulated in pond pass through direct emission in reuse pool.
After above-mentioned technical proposal, the effect of the utility model is: above-mentioned processing method has used above-mentioned dirt
Water treatment system, therefore the advantages of sewage disposal system is likewise supplied in processing method, the processing method is by zinc hydroxide
Precipitating is divided into two stages, adjusts pH value stage by stage by two stages, can be accurately controlled in this way, while adding using second
The rapid dispersion of alkali pipe acts on realizing that accurate and quick pH is adjusted, and governing response speed is faster；After secondary precipitation, then
The suspended solids in sewage are filtered out by sand filtration, carbon filtration, it is finally, considerably less by filtered sewage zinc ion content,
Then cationic (zinc ion) come further filtering metal completely by the hydrogen type cation exchange resin in ion exchange pond, this
The concentration of the waste water zinc ion of sample discharge is less than 1mg/L.
The processing method further includes the washing method of turning one's coat of sand filter and carbon filtering pool；In the sewage inlet of sand filter and carbon filtering pool
With thief hatch is set on outlet of sewer, the zinc ion for sampling and detecting at interval of 12 hours in the inflow and outflow of sand filter is dense
It spends, the zinc ion concentration in the inflow and outflow of carbon filtering pool, when the zinc ion concentration in the water outlet in sand filter is equal to or more than
Zinc ion concentration in water inlet then starts the washing method of turning one's coat of sand filter；When the zinc ion concentration etc. in the water outlet in carbon filtering pool
In or greater than zinc ion concentration in water inlet, then start the washing method of turning one's coat of carbon filtering pool；
The washing method of turning one's coat are as follows: take the water in reuse pool and by the water from sand filter or carbon filtering pool bottom using washing pumping
Turning one's coat for portion washes mouth feeding, the carbon leaching material in sand grains filtrate or carbon filtering pool in back flush sand filter, back flush
Water wash out mouth by turning one's coat at the top of sand filter or carbon filtering pool and be discharged and be sent in conditioning tank, using turning one's coat, washing method can be with
Back flush is carried out to sand filter and carbon filtering pool, removes the solid precipitating being attached in sand grains filtrate and carbon leaching material, in this way,
Sand grains filtrate and carbon leaching material is set to keep activity for a long time, it is ensured that processing method is stable and effectively runs.
Preferably, which further includes acid washing method, switches ion exchange pond within the interval time of setting,
And it is passed through sulfuric acid into idle ion exchange pond, the hydrogen ion backward-substitition exchange under strong acidic environment, in sulfuric acid solution
Zinc ion in resin, makes hydrogen type cation exchange resin activity recovery, and the zinc sulfate obtained after pickling and sulfuric acid mixture liquid body are logical
The recycling of peracid washing lotion recovery tube.Hydrogen type cation exchange resin can be made to be recycled by pickling, it is ensured that permanently effective makes
With.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the system diagram of the sewage disposal system of the utility model embodiment；
Fig. 2 is the top view in the 2nd pH adjustment pond；
Fig. 3 is the front schematic view in the 2nd pH adjustment pond；
In attached drawing: 1. conditioning tanks；2. the first pH adjusts pond；3. the first coagulation reaction tank；4. the first inclined-tube sedimentation tank；5. the
Two pH adjust pond；6. the second coagulation reaction tank；7. sludge-tank；8. the second inclined-tube sedimentation tank；9. sand filter；10. carbon filtering pool 10；
11. ion exchange pond；12. demodulating pond；13. reuse pool；14. water wash system；15. washing water return pipeline；16. sulfuric acid adds
Pipe；17. pickling solution recovery tube；18. distributing pipeline section；19. level plus alkali pipe；20. adding alkali pipe vertically；21. the first water inlet distribution choosing
Select pipeline；22. the second water inlet distribution selection pipeline；23. third water inlet distribution selection pipeline.
Specific embodiment
The utility model is described in further detail below by specific embodiment.
As shown in Figure 1 to Figure 3, a kind of sewage disposal system containing zinc ion, including
The entrance of conditioning tank 1, the conditioning tank 1 is connect with wastewater influent general pipeline；
First pH adjusts pond 2, and the entrance in the first pH adjustment pond 2 is connected to the outlet conduit of conditioning tank 1, and the first pH adjusts pond
It is provided with pH meter and first on 2 and adds alkali adding tube, first adds alkali adding tube and add alkali system connectivity；In the present embodiment, first adds
Alkali adding tube is identical with the structure of subsequent second plus alkali adding tube.Adding alkali system is current conventional system, adds alkali pump real
The now automatic addition of automatic lye, and pH meter is connect with the control system of alkali pump is added, and is controlled according to the reading of pH meter and is added alkali
The height of pump open it is low stop, control pH value in 6-9.
First coagulation reaction tank 3, pipeline between the entrance of first coagulation reaction tank 3 and the outlet in the first pH adjustment pond 2
It is connected to, PAC addition nozzle and PAM addition nozzle is provided in the first coagulation reaction tank 3；
First inclined-tube sedimentation tank 4 is managed between the entrance of first inclined-tube sedimentation tank 4 and the outlet of the first coagulation reaction tank 3
Road connection, the top of the first inclined-tube sedimentation tank 4 are provided with supernatant outlet, and bottom is provided with sludge outlet；Inclined-tube sedimentation tank is
The settling zone of current conventional sedimentation basin, sedimentation basin is provided with inclined tube.
2nd pH adjusts pond 5, and the supernatant of the entrance and first inclined-tube sedimentation tank 4 in the 2nd pH adjustment pond 5 goes out
Pipeline is connected between mouthful, and pH meter and second is provided on the 2nd pH adjustment pond 5 and adds alkali pipe, second plus alkali Guan Yujia alkali system connect
It is logical；Described second adds alkali pipe to include that the several groups being set in the 2nd pH adjustment pond 5 add alkali adding tube group, and every group adds alkali adding tube
Group includes the vertical plus alkali pipe 20 being vertically arranged, and is provided at least two distribution pipeline sections 18, distribution pipe vertically plus on alkali pipe 20
The caliber of section 18 is greater than vertical plus alkali pipe 20 caliber, several levels plus alkali pipe are evenly distributed on each distribution pipeline section 18
19, every level, which adds, to be provided with four rows and adds alkali hole on alkali pipe 19, and it is horizontal plus alkali pipe 19 upper which adds alkali hole to be located at
Side, downside, left side, right side；It distributes at pipeline section 18 at various height, in this way, lye adds alkali hole to be discharged into from surrounding by four rows
Into sewage, quickly mixing is realized.Preferably, pH meter in the adjustment pond 2 the first pH and the 2nd pH conditioning tank 1 it is equal two and
It is distributed in different depth, the result detected in this way has more reference value.
Second coagulation reaction tank 6 is managed between the entrance of second coagulation reaction tank 6 and the outlet in the 2nd pH adjustment pond 5
Road is connected to, and PAC addition nozzle and PAM addition nozzle are provided in second coagulation reaction tank 6；
Second inclined-tube sedimentation tank 8 is managed between the entrance of second inclined-tube sedimentation tank 8 and the outlet of the second coagulation reaction tank 6
Road connection, the top of the second inclined-tube sedimentation tank 8 are provided with supernatant outlet, and bottom is provided with sludge outlet；
Sand filter 9, the quantity of the sand filter 9 are two, and the top of each sand filter 9 is provided with sewage inlet and turns one's coat and washes
Outlet, the sewage inlet of each sand filter 9 pass through the supernatant of the first water inlet distribution selection pipeline 21 and the second inclined-tube sedimentation tank 8
Liquid outlet；Several layers sand grains filtrate is provided in the sand filter 9, from top to bottom partial size becomes larger the partial size of sand grains filtrate；
The bottom of pond of each sand filter 9, which is provided with to turn one's coat, washes mouth, outlet of sewer；The number of plies of sand grains filtrate in the sand filter 9 is five
Layer, from top to bottom respectively first layer sand grains filtrate, second layer sand grains filtrate, third layer sand grains filtrate, the 4th layer of sand grains filtrate
With layer 5 sand grains filtrate, the partial size of first layer sand grains filtrate is 0.5-1.2mm, and the partial size of second layer sand grains filtrate is 2-4mm,
The partial size of third layer sand grains filtrate is 4-8mm, and the partial size of the 4th layer of sand grains filtrate is 8-16mm, the partial size of layer 5 sand grains filtrate
For 16-32mm.The bottom bottom of layer 5 sand grains filtrate, which is provided with, places screen frame, for supporting sand grains filtrate.
Carbon filtering pool 10；The quantity of the carbon filtering pool 10 is two, and the top of each carbon filtering pool 10 is provided with sewage inlet and anti-
Washing outlet, the sewage inlet of each carbon filtering pool 10 passes through the second water inlet distribution selection pipeline 22 and the sewage of sand filter 9 goes out
Mouth connection；Several layers carbon leaching material is provided in the carbon filtering pool 10, the granularity of carbon leaching material from top to bottom becomes larger；Each
The bottom of pond of carbon filtering pool 10, which is provided with to turn one's coat, washes mouth, outlet of sewer；The turning one's coat of the carbon filtering pool 10 wash mouth, sand filter 9 it is anti-
Washing entrance is connected to water wash system 14, and the turning one's coat of the carbon filtering pool 10 washes out mouth, turning one's coat for sand filter 9 washes out mouth and water
Wash the connection of water return pipeline 15.The number of plies of carbon leaching material is five layers, and the thickness degree of carbon leaching material is 50mm, partial size by lower and
On be arranged as 8-16mm, 4-8mm, 2-4mm, 4-8mm, 8-16mm.The water wash system 14 includes washing pump, the washing pump
Water inlet pipe be connected to reuse pool 13, the outlet pipe of the washing pump, which is respectively turned one's coat with carbon filtering pool 10, washes mouth, sand filter 9
It turns one's coat and washes mouth connection, the water outlet of the washing water return pipeline 15 is connected to conditioning tank 1.
Ion exchange pond 11；The quantity in the ion exchange pond 11 is two, and the top in each ion exchange pond 11 is provided with
Sewage inlet and pickling outlet, bottom is provided with outlet of sewer and pickling entrance, the sewage inlet in the ion exchange pond 11
It is intake by third and is connected between distribution selection pipeline 23 and the outlet of sewer of carbon filtering pool 10, is arranged in each ion exchange pond 11
There is hydrogen type cation exchange resin particle, the pickling entrance in the ion exchange pond 11 is connected with sulfuric acid adding tube 16, described
Pickling outlet is connected with pickling solution recovery tube 17；
Pond 12 is demodulated, pipeline is connected between the entrance and the outlet of sewer in each ion exchange pond 11 for demodulating pond 12, instead
Third is provided on tune pond 12 to add alkali adding tube and recapture medicament adding tube；
Reuse pool 13, pipeline is connected between the entrance of the reuse pool 13 and the outlet for demodulating pond 12, reuse pool
Discharge outlet is provided on 13；
The sludge outlet of sludge-tank 7, the entrance of the sludge-tank 7 and the first inclined-tube sedimentation tank 4, the second inclined-tube sedimentation tank 8
Pipeline is connected between sludge outlet, and the outlet of sludge-tank 7 is connect with filter press.
In addition, the sewage water treatment method uses the invention also discloses a kind of sewage water treatment method containing zinc ion
Above-mentioned sewage disposal system, comprising the following steps:
S1, the sewage containing zinc ion is sent into conditioning tank 1 and is collected；
S2, the sewage in conditioning tank 1 is sent in the first pH adjustment pond 2, hydrogen-oxygen is added using first plus alkali adding tube
Change sodium, and detect pH value using pH meter, the pH value in control the first pH adjustment pond 2 is 6-9；
S3, the sewage in the first pH adjustment pond 2 is sent in the first coagulation reaction tank 3, successively adds 10% mass ratio
PAC solution and 0.1% mass ratio PAM solution, wherein the additive amount of PAC is 100-400ppm, and the additive amount of PAM is 1-
5ppm；
S4, the sewage in the first coagulation reaction tank 3 is sent in the first inclined-tube sedimentation tank 4 and is precipitated 2-3 hours, supernatant
It is sent in the 2nd pH adjustment pond 5, the sludge of bottom of pond is discharged into sludge-tank 7；
S5, the 2nd pH is adjusted in pond 5 by second plus alkali pipe and adds sodium hydroxide, wherein sodium hydroxide solution passes through
It is assigned in each horizontal plus alkali pipe 19 vertically plus after the entrance of alkali pipe 20, level plus alkali pipe 19 are in different height, hydroxide
Sodium solution adds alkali hole to evenly spread in the 2nd pH adjustment pond 5 by each row, and pH meter is utilized to monitor the pH in the 2nd pH adjustment pond 5
Value, and make pH value control between 8.5-9.5；
S6, enter in the second coagulation reaction tank 6 by the 2nd pH adjustment sewage adjusted of pond 5, successively add 10% matter
The PAC solution and 0.1% mass ratio PAM solution of ratio are measured, wherein the additive amount of PAC is 100-400ppm, and the additive amount of PAM is 1-
5ppm；
Sewage in S7, the second coagulation reaction tank 6 is sent in the second inclined-tube sedimentation tank 8 and precipitates 2-3 hours, and supernatant is sent
Enter into one of sand filter 9, two 9 a preparation and a use of sand filter, the suspended particulate in sewage flows after the filtering of sand filter 9
Enter into carbon filtering pool 10 to enter back into and be filtered in carbon filtering pool 10,10 a preparation and a use of carbon filtering pool, the sludge in the second inclined-tube sedimentation tank 8 is sent
Enter into sludge-tank 7, final sludge is sent into filter press compression；
S8, it is sent in ion exchange pond 11 by sand filter 9 and the filtered sewage of carbon filtering pool 10, ion exchange pond 11
In be filled with hydrogen type cation exchange resin, the hydrogen ion in the zinc ion and hydrogen type cation exchange resin that retain in sewage
Exchange, final zinc ion are attracted in exchanger resin；
S9, the sewage after ion exchange, which are sent to, to be demodulated in pond 12, and the pH value demodulated in pond 12 is detected using pH meter,
PH value is controlled between 6-9 by addition sodium hydroxide solution；
S10, the sewage demodulated in pond 12 pass through direct emission in reuse pool 13.
Wherein, above-mentioned processing method has used above-mentioned sewage disposal system, thus the advantages of sewage disposal system
It is likewise supplied in processing method, which is divided into two stages for the precipitating of zinc hydroxide, by two stages come sublevel
Section adjusts pH value, can be accurately controlled in this way, while accurate and quick to realize using the rapid dispersion effect of second plus alkali pipe
PH adjust, governing response speed is faster；After secondary precipitation, then filter out by sand filtration, carbon filtration the suspended matter in sewage
Solid, it is finally, considerably less by filtered sewage zinc ion content, then pass through the hydrogen form cation in ion exchange pond 11
Exchanger resin carrys out further filtering metal cation (zinc ion) completely, and the concentration of the waste water zinc ion discharged in this way is less than 1mg/
L。
The processing method further includes the washing method of turning one's coat of sand filter 9 and carbon filtering pool 10；In the dirt of sand filter 9 and carbon filtering pool 10
Thief hatch is set on water inlet and outlet of sewer, sampled and detected the zinc in the inflow and outflow of sand filter 9 at interval of 12 hours
Zinc ion concentration in ion concentration, the inflow and outflow of carbon filtering pool 10, when the zinc ion concentration etc. in the water outlet in sand filter 9
In or greater than zinc ion concentration in water inlet, then start the washing method of turning one's coat of sand filter 9；Zinc in the water outlet in carbon filtering pool 10
Ion concentration is equal to or more than the zinc ion concentration in water inlet, then starts the washing method of turning one's coat of carbon filtering pool 10；
The washing method of turning one's coat are as follows: take the water in reuse pool 13 and by the water from sand filter 9 or carbon filtration using washing pumping
Turning one's coat for 10 bottom of pond washes mouth feeding, the carbon leaching material in sand grains filtrate or carbon filtering pool 10 in back flush sand filter 9,
The water of back flush washes out mouth and is discharged and is sent in conditioning tank 1 by turning one's coat for sand filter 9 or the top of carbon filtering pool 10, using anti-
Method for washing can carry out back flush to sand filter 9 and carbon filtering pool 10, and removing is attached in sand grains filtrate and carbon leaching material
Solid precipitating, in this way, sand grains filtrate and carbon leaching material is made to keep activity for a long time, it is ensured that processing method it is stable and effectively
Operation.The sewage water treatment method further includes acid washing method, switches ion exchange pond 11 within the interval time of setting, and past idle
Ion exchange pond 11 in be passed through sulfuric acid, under strong acidic environment, in the hydrogen ion backward-substitition exchanger resin in sulfuric acid solution
Zinc ion, makes hydrogen type cation exchange resin activity recovery, and the zinc sulfate obtained after pickling and sulfuric acid mixture liquid body pass through pickling
Liquid recovery tube 17 recycles.Hydrogen type cation exchange resin can be made to be recycled by pickling, it is ensured that permanently effective use.Certain
Metal factory wastewater characteristics are as follows:
| Serial number | Project | Numerical value | Unit |
| 1 | pH | 2-3 | Dimensionless |
| 2 | Zinc | ≤100 | mg/L |
| 3 | Iron | ≤100 | mg/L |
| 4 | COD | ≤100 | mg/L |
| 5 | Ammonia nitrogen | ≤25 | mg/L |
| 6 | Total nitrogen | ≤40 | mg/L |
| 7 | Total phosphorus | ≤10 | mg/L |
Water outlet characteristic after above-mentioned processing system and processing method is as follows:
Embodiment described above is only the description to preferred embodiments of the present invention, not as to the utility model
The restriction of range is made technical solutions of the utility model various on the basis of not departing from the spirit of the design of the utility model
Deformation and transformation should all be fallen into the protection scope of claims determination of the utility model.
Claims (6)
1. a kind of sewage disposal system containing zinc ion, it is characterised in that: including
The entrance of conditioning tank, the conditioning tank is connect with wastewater influent general pipeline；
First pH adjusts pond, and the entrance in the first pH adjustment pond is connected to the outlet conduit of conditioning tank, and the first pH adjustment is arranged on pond
There is pH meter and first to add alkali adding tube, first adds alkali adding tube and add alkali system connectivity；
First coagulation reaction tank, pipeline is connected between the entrance of first coagulation reaction tank and the outlet in the first pH adjustment pond, the
PAC addition nozzle and PAM addition nozzle are provided in one coagulation reaction tank；
First inclined-tube sedimentation tank, pipeline is connected between the entrance of first inclined-tube sedimentation tank and the outlet of the first coagulation reaction tank,
The top of first inclined-tube sedimentation tank is provided with supernatant outlet, and bottom is provided with sludge outlet；
2nd pH adjusts pond, manages between the entrance in the 2nd pH adjustment pond and the supernatant outlet of first inclined-tube sedimentation tank
Road is connected to, and pH meter and second is provided on the 2nd pH adjustment pond and adds alkali pipe, second adds alkali Guan Yujia alkali system connectivity；Described second
Adding alkali pipe includes that the several groups being set in the 2nd pH adjustment pond add alkali adding tube group, and every group adds alkali adding tube group to include vertical
Be arranged vertical plus alkali pipe are provided at least two distribution pipeline sections vertically plus on alkali pipe, distribute pipeline section caliber be greater than it is vertical plus
The caliber of alkali pipe is evenly distributed in several levels plus alkali pipe on each distribution pipeline section, and every level adds to be respectively provided on alkali pipe
There are four rows to add alkali hole, which adds alkali hole to be located at horizontal plus alkali pipe upside, downside, left side, right side；
Second coagulation reaction tank, pipeline is connected between the entrance and the outlet in the 2nd pH adjustment pond of second coagulation reaction tank,
PAC addition nozzle and PAM addition nozzle are provided in second coagulation reaction tank；
Second inclined-tube sedimentation tank, pipeline is connected between the entrance of second inclined-tube sedimentation tank and the outlet of the second coagulation reaction tank,
The top of second inclined-tube sedimentation tank is provided with supernatant outlet, and bottom is provided with sludge outlet；
Sand filter, the quantity of the sand filter are two, sewage inlet is provided at the top of each sand filter and is turned one's coat washes out mouth, often
The sewage inlet of a sand filter passes through the first water inlet distribution selection pipeline and is connected to the supernatant outlet of the second inclined-tube sedimentation tank；
Several layers sand grains filtrate is provided in the sand filter, from top to bottom partial size becomes larger the partial size of sand grains filtrate；Each sand filter
Bottom of pond, which is provided with to turn one's coat, washes mouth, outlet of sewer；
Carbon filtering pool；The quantity of the carbon filtering pool is two, sewage inlet is provided at the top of each carbon filtering pool and is turned one's coat washes out mouth, often
The sewage inlet of a carbon filtering pool passes through the second water inlet distribution selection pipeline and is connected to the outlet of sewer of sand filter；The carbon filtering pool
In be provided with several layers carbon leaching material, the granularity of carbon leaching material from top to bottom becomes larger；The bottom of pond of each carbon filtering pool is provided with
It turns one's coat and washes mouth, outlet of sewer；The turning one's coat of the carbon filtering pool washes mouth, turning one's coat for sand filter washes mouth and connect with water wash system
Logical, the turning one's coat of the carbon filtering pool washes out mouth, turning one's coat for sand filter washes out mouth and be connected to washing water return pipeline；
Ion exchange pond；The quantity in the ion exchange pond is two, be provided at the top of each ion exchange pond sewage inlet and
Pickling outlet, bottom are provided with outlet of sewer and pickling entrance, and the sewage inlet in the ion exchange pond passes through third water inlet point
With being connected between selection pipeline and the outlet of sewer of carbon filtering pool, hydrogen type cation exchange resin is provided in each ion exchange pond
Particle, the pickling entrance in the ion exchange pond are connected with sulfuric acid adding tube, and the pickling outlet is connected with pickling solution recycling
Pipe；
Pond is demodulated, pipeline is connected between the entrance and the outlet of sewer in each ion exchange pond for demodulating pond, is demodulated and is arranged on pond
There is third to add alkali adding tube and recapture medicament adding tube；
Reuse pool, pipeline is connected between the entrance of the reuse pool and the outlet for demodulating pond, the row of being provided on reuse pool
Put mouth；
The sludge outlet of the sludge outlet of sludge-tank, the entrance of the sludge-tank and the first inclined-tube sedimentation tank, the second inclined-tube sedimentation tank
Between pipeline connection, the outlet of sludge-tank is connect with filter press.
2. a kind of sewage disposal system containing zinc ion as described in claim 1, it is characterised in that: the water wash system packet
Washing pump is included, the water inlet pipe of the washing pump is connected to reuse pool, and the outlet pipe of the washing pump is turned one's coat with carbon filtering pool respectively
Wash mouth, sand filter turn one's coat wash mouth connection, it is described washing water return pipeline water outlet be connected to conditioning tank.
3. a kind of sewage disposal system containing zinc ion as claimed in claim 2, it is characterised in that: the sand in the sand filter
The number of plies of grain filtrate is five layers, from top to bottom respectively first layer sand grains filtrate, second layer sand grains filtrate, the filter of third layer sand grains
Material, the 4th layer of sand grains filtrate and layer 5 sand grains filtrate, the partial size of first layer sand grains filtrate are 0.5-1.2mm, second layer sand grains
The partial size of filtrate is 2-4mm, and the partial size of third layer sand grains filtrate is 4-8mm, and the partial size of the 4th layer of sand grains filtrate is 8-16mm, the
The partial size of five layers of sand grains filtrate is 16-32mm.
4. a kind of sewage disposal system containing zinc ion as claimed in claim 3, it is characterised in that: the number of plies of carbon leaching material
Be five layers, the thickness degree of carbon leaching material is 50mm, partial size be from bottom to top arranged as 8-16mm, 4-8mm, 2-4mm, 4-8mm,
8-16mm。
5. a kind of sewage disposal system containing zinc ion as claimed in claim 4, it is characterised in that: the first pH adjusts pond
First plus alkali adding tube the 2nd pH conditioning tank second plus alkali pipe structure it is identical.
6. a kind of sewage disposal system containing zinc ion as claimed in claim 5, it is characterised in that: the first pH adjusts pond
With pH meter in the 2nd pH conditioning tank is equal two and is distributed in different depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779445.8U CN208362068U (en) | 2018-05-24 | 2018-05-24 | A kind of sewage disposal system containing zinc ion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779445.8U CN208362068U (en) | 2018-05-24 | 2018-05-24 | A kind of sewage disposal system containing zinc ion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423891A (en) * | 2018-05-24 | 2018-08-21 | 张家港市清泉水处理有限公司 | A kind of sewage disposal system and its processing method containing zinc ion |
| CN109867389A (en) * | 2019-04-16 | 2019-06-11 | 芜湖沃泰环保科技有限公司 | A kind of processing system and its method of mine soil elution sewage |
-
2018
- 2018-05-24 CN CN201820779445.8U patent/CN208362068U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423891A (en) * | 2018-05-24 | 2018-08-21 | 张家港市清泉水处理有限公司 | A kind of sewage disposal system and its processing method containing zinc ion |
| CN109867389A (en) * | 2019-04-16 | 2019-06-11 | 芜湖沃泰环保科技有限公司 | A kind of processing system and its method of mine soil elution sewage |
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