CN202272788U - Recovering treating system of waste water from sulfuric acid production - Google Patents

Recovering treating system of waste water from sulfuric acid production Download PDF

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Publication number
CN202272788U
CN202272788U CN2011203536667U CN201120353666U CN202272788U CN 202272788 U CN202272788 U CN 202272788U CN 2011203536667 U CN2011203536667 U CN 2011203536667U CN 201120353666 U CN201120353666 U CN 201120353666U CN 202272788 U CN202272788 U CN 202272788U
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China
Prior art keywords
reverse osmosis
pool
sulfuric acid
acid production
communicated
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Expired - Fee Related
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CN2011203536667U
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Chinese (zh)
Inventor
马永涛
陈鹰
王凤朝
李龙
张春明
李连中
刘玉芹
肖常玲
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CNKH
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CNKH
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Abstract

The utility model discloses a recovering treating system of waste water from sulfuric acid production, which comprises a sedimentation system, a filtration system, and a reverse osmosis system; the sedimentation system comprises a waste water collecting pool, a chemical sedimentation pool, a sludge pool; a waste water conveying pump is disposed on a conveying pipeline between the waste water collecting pool and the chemical sedimentation pool; a flocculant adding device, a bactericide adding device, and a scale inhibitor adding device are disposed on the chemical sedimentation pool; a sludge discharging port of the chemical sedimentation pool is communicated with the sludge pool; the filtration system comprises a filtering high pressure pump, a multimedium filter, a precise filter, an ultrafilter, and an intermediate water pool which are orderly communicated by pipelines; an acid adding case is disposed on a pipeline between the precise filter and the ultrafilter; the reverse osmosis system comprises a reverse osmosis high pressure pump, a reverse osmosis device, and a recycling water tank which are communicated by pipelines. Through sedimentation treatment and filtration treatment, suspensions and SDI are ensured to reach the RO water supply requirements; the service life of the reverse osmosis film is prolonged, and the operation cost is reduced.

Description

The sulfuric acid production wastewater recycling processing system
Technical field
The utility model relates to a kind of Waste Water Treatment, relates in particular to a kind of sulfuric acid production wastewater recycling processing system.
Background technology
In the zinc ore concentrate roasting acid industry production process, the waste water of generation includes the qualified discharge water of reverse osmosis concentrated draining, the draining of relieving haperacidity recirculated cooling water and sewage works.These waste water total amounts are big, and the waste water resource of directly draining also can cause environmental pollution simultaneously.For water saving, alleviate environmental pollution, realize energy-saving and emission-reduction, need carry out the comprehensive treating process recovery to above-mentioned waste water and be used for relieving haperacidity recirculated cooling water supplementary feed, can practice thrift a large amount of new water year.The wastewater treatment scheme should design according to the standard of waste water composition and reuse water, and prior art can not find the treatment system that is fit to zinc ore concentrate roasting acid industry waste water.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming of prior art, provides that a kind of technical process is simple, the investment appropriateness, and running cost is low, and the recovery is high, and system is stable, flexibly adjustable sulfuric acid production wastewater recycling processing system.
The purpose of the utility model is achieved in that a kind of sulfuric acid production wastewater recycling processing system; It comprises sedimenting system, filtering system and reverse osmosis system; It is characterized in that: described sedimenting system comprises wastewater collection pond, chemical precipitation pond, sludge sump; On the transport pipe between wastewater collection pond and the chemical precipitation pond, the waste water transferpump is arranged; Flocculation agent adding set, sterilant adding set and Scale inhibitors adding set are set on the chemical precipitation pond, and the mud discharging mouth in chemical precipitation pond is communicated with sludge sump; Described filtering system comprises filtration HPP, more medium filter, accurate filter, ultra-fine filter and the intermediate pool that is communicated with successively through pipeline; Described reverse osmosis system comprises reverse osmosis high-pressure pump, reverse osmosis unit and the reuse tank through pipeline connection, and the reverse osmosis concentrated water discharge pipe prepares case and discharge of wastewater outlet through the milk of lime that three position four-way directional control valve is communicated with wastewater collection pond, sewage works.
The flocculation agent adding set of said setting comprises flocculation agent dissolving case and flocculation agent volume pump, and described sterilant adding set comprises sterilant dissolving case and sterilant volume pump, and described Scale inhibitors adding set comprises Scale inhibitors dissolving case and Scale inhibitors volume pump.
As a kind of improvement, setting adds sour case on the pipeline between accurate filter and the ultra-fine filter.
For automatic accurate adjusting pH value, PH meter is set on the pipeline between accurate filter and the ultra-fine filter, flowrate control valve is set adding adding on the acid tube road of sour case.
Described chemical precipitation pond is the heavy pond of flat flow swash plate, and 1~3 stirring pump is set on the heavy pond of flat flow swash plate.
In order further to handle the mud in the sludge sump, the utility model also comprises sludge pump and the pressure filter that is communicated with sludge sump.
The advantage of the utility model is: the reverse osmosis concentrated water discharge pipe prepares case and discharge of wastewater outlet through the milk of lime that three position four-way directional control valve is communicated with wastewater collection pond, Sewage treatment systems; When system moves, detect the reverse osmosis concentrated water quality index, emphasis detects Cl -Ionic concn is less than 30mg/L, and the milk of lime of squeezing into wastewater collection pond and Sewage treatment systems prepares case, detects Cl -Ionic concn is got rid of through the discharge of wastewater outlet greater than 30mg/L; It can realize the comprehensive utilization of waste water to greatest extent, reduces wastewater discharge and makes it to approach zero release.Three kinds of waste water mixing PH of this zinc ore concentrate roasting acid industry waste water are up to about 9, Ca 2+, SO 4 2-Content is high, and suspension content is than higher.Flocculation agent adding set, sterilant adding set and Scale inhibitors adding set are set on the chemical precipitation pond, can remove suspended substance, Ca in the water effectively 2+, SO 4 2-Ion suppresses increasing rapidly of microorganism growth and COD, through the two-stage filtration of dimensional filter device and ultra-fine filter, filtering granule foreign and suspended substance, can to realize regulating automatically pH value be 7.2~7.5 through adding sour case.Through precipitation process and filtration treatment, can guarantee to protect suspended substance and SDI and reach RO feedwater requirement, prolonged the work-ing life of reverse osmosis membrane, reduced running cost.
Description of drawings
Fig. 1 is the sulfuric acid production wastewater recycling processing system synoptic diagram of the utility model;
Among the figure, 1. wastewater collection pond, 2. waste water transferpump, 3. chemical precipitation pond, 4. flocculation agent dissolving case, 5. flocculation agent volume pump; 6. sterilant dissolving case, 7. sterilant volume pump, 8. Scale inhibitors dissolving case, 9. the Scale inhibitors volume pump 10. stirs pump, 11. sludge sumps; 12. sludge pump, 13. pressure filter, 14. filter HPP, 15. more medium filters, 16. accurate filters; 17. ultra-fine filter, 18. add sour case, 19. flowrate control valves, 20.PH meter, 21. intermediate pool; 22. the reverse osmosis high-pressure pump, 23. reverse osmosis units, 24. reuse tanks, 25. three position four-way directional control valves, the milk of lime of 26. sewage workss prepares case.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, a kind of sulfuric acid production wastewater recycling processing system, it comprises sedimenting system, filtering system and reverse osmosis system.Described sedimenting system comprises wastewater collection pond 1, chemical precipitation pond 3, sludge sump 11; On the transport pipe between wastewater collection pond 1 and the chemical precipitation pond 3, waste water transferpump 2 is arranged; Flocculation agent dissolving case 4 and flocculation agent volume pump, sterilant dissolving case 6 and sterilant volume pump 7, Scale inhibitors dissolving case 8 and Scale inhibitors volume pump 9 on chemical precipitation pond 3; The mud discharging mouth in chemical precipitation pond 3 is communicated with sludge sump 11, and the drain of sludge sump is communicated with pressure filter 13 through pipeline and sludge pump 12.Described chemical precipitation pond 3 is the heavy ponds of flat flow swash plate, and 3 stirring pumps 10 are set on the heavy pond of flat flow swash plate.Described filtering system comprises filtration HPP 14, more medium filter 15, accurate filter 16, ultra-fine filter 17 and the intermediate pool 21 that is communicated with successively through pipeline; On the pipeline between accurate filter 16 and the ultra-fine filter 17, be provided with and add sour case 18 and PH meter 20, flowrate control valve 19 is set adding adding of sour case 18 on the acid tube road.Described reverse osmosis system comprises reverse osmosis high-pressure pump 22, reverse osmosis unit 23 and the reuse tank 24 through pipeline connection, and the milk of lime that the reverse osmosis concentrated water discharge pipe is communicated with wastewater collection pond 1, sewage works through three position four-way directional control valve 25 prepares case 26 and discharge of wastewater outlet.
Should be noted that at last; Above embodiment content is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain; The simple modification that those of ordinary skill in the art carries out the technical scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technical scheme.

Claims (6)

1. sulfuric acid production wastewater recycling processing system; It comprises sedimenting system, filtering system and reverse osmosis system; It is characterized in that: described sedimenting system comprises wastewater collection pond (1), chemical precipitation pond (3), sludge sump (11); On the transport pipe between wastewater collection pond (1) and chemical precipitation pond (3), waste water transferpump (2) is arranged; Flocculation agent adding set, sterilant adding set and Scale inhibitors adding set are set on chemical precipitation pond (3), and the mud discharging mouth of chemical precipitation pond (3) is communicated with sludge sump (11); Described filtering system comprises filtration HPP (14), more medium filter (15), accurate filter (16), ultra-fine filter (17) and the intermediate pool (21) that is communicated with successively through pipeline; Described reverse osmosis system comprises reverse osmosis high-pressure pump (22), reverse osmosis unit (23) and the reuse tank (24) through pipeline connection, and the reverse osmosis concentrated water discharge pipe prepares case (26) and discharge of wastewater outlet through the milk of lime that three position four-way directional control valve (25) is communicated with wastewater collection pond (1), sewage works.
2. sulfuric acid production wastewater recycling processing system according to claim 1; It is characterized in that: the flocculation agent adding set of said setting comprises flocculation agent dissolving case (4) and flocculation agent volume pump (5); Described sterilant adding set comprises sterilant dissolving case (6) and sterilant volume pump (7), and described Scale inhibitors adding set comprises Scale inhibitors dissolving case (8) and Scale inhibitors volume pump (9).
3. sulfuric acid production wastewater recycling processing system according to claim 1 is characterized in that: setting adds sour case (18) on the pipeline between accurate filter (16) and the ultra-fine filter (17).
4. sulfuric acid production wastewater recycling processing system according to claim 3 is characterized in that: PH meter (20) is set on the pipeline between accurate filter (16) and the ultra-fine filter (17), flowrate control valve (19) is set adding adding of sour case (18) on the acid tube road.
5. sulfuric acid production wastewater recycling processing system according to claim 1 is characterized in that: described chemical precipitation pond (3) is the heavy pond of flat flow swash plate, and 1~3 stirring pump (10) is set on the heavy pond of flat flow swash plate.
6. sulfuric acid production wastewater recycling processing system according to claim 1 is characterized in that: it also comprises a sludge pump (12) and the pressure filter (13) that is communicated with sludge sump (11).
CN2011203536667U 2011-09-10 2011-09-10 Recovering treating system of waste water from sulfuric acid production Expired - Fee Related CN202272788U (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102690003A (en) * 2012-06-19 2012-09-26 江苏久吾高科技股份有限公司 Device and method for performing advanced treatment on citric acid waste water through dual membrane process
CN107670376A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filtration system of individually Gravity Separation
CN107670384A (en) * 2016-12-12 2018-02-09 青岛大学 The chemical industry pulp separation system that a kind of material position judges
CN107670377A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filter box system that can interpolate that filter plate validity
CN107670392A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of integrated belt press filtration piece-rate system of tuningout tensioning
CN107670387A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of press filteration system with dehydration train
CN107670393A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of Pressure Filter System of chemical industry slurry
CN107670385A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of extruding filtration system of chemical industry slurry
CN107670378A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filter box system that can interpolate that transmission device validity
CN110156194A (en) * 2019-05-27 2019-08-23 铜陵有色金属集团股份有限公司 A kind of processing method of high solids content sulfuric acid production process waste water

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102690003A (en) * 2012-06-19 2012-09-26 江苏久吾高科技股份有限公司 Device and method for performing advanced treatment on citric acid waste water through dual membrane process
CN107670378A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filter box system that can interpolate that transmission device validity
CN107670387A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of press filteration system with dehydration train
CN107670384B (en) * 2016-12-12 2019-11-22 连江县维佳工业设计有限公司 A kind of chemical industry pulp separation system of material position judgement
CN107670392A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of integrated belt press filtration piece-rate system of tuningout tensioning
CN107670378B (en) * 2016-12-12 2019-10-11 冀小锋 A kind of filter box system that can judge transmission device validity
CN107670393A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of Pressure Filter System of chemical industry slurry
CN107670385A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of extruding filtration system of chemical industry slurry
CN107670376B (en) * 2016-12-12 2019-10-15 福州清河源环保科技有限公司 A kind of filtration system of independent Gravity Separation
CN107670377A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filter box system that can interpolate that filter plate validity
CN107670384A (en) * 2016-12-12 2018-02-09 青岛大学 The chemical industry pulp separation system that a kind of material position judges
CN107670376A (en) * 2016-12-12 2018-02-09 青岛大学 A kind of filtration system of individually Gravity Separation
CN107670392B (en) * 2016-12-12 2019-10-18 宝应县有机食品质量监督检验中心 A kind of belt filters pressing separation system that tuningout tensioning is integrated
CN107670393B (en) * 2016-12-12 2019-10-18 宝应县有机食品质量监督检验中心 A kind of Pressure Filter System of chemical industry slurry
CN107670377B (en) * 2016-12-12 2019-10-18 宝应县有机食品质量监督检验中心 A kind of filter box system that can judge filter plate validity
CN107670387B (en) * 2016-12-12 2019-10-29 福州清河源环保科技有限公司 A kind of press filteration system with dehydration train
CN107670385B (en) * 2016-12-12 2019-10-29 福州盛世凌云环保科技有限公司 A kind of extruding filtration system of chemical industry slurry
CN110156194A (en) * 2019-05-27 2019-08-23 铜陵有色金属集团股份有限公司 A kind of processing method of high solids content sulfuric acid production process waste water

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Granted publication date: 20120613

Termination date: 20120910