CN204369692U - A kind of sewage water recycling and processing equipment - Google Patents

A kind of sewage water recycling and processing equipment Download PDF

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Publication number
CN204369692U
CN204369692U CN201420862227.2U CN201420862227U CN204369692U CN 204369692 U CN204369692 U CN 204369692U CN 201420862227 U CN201420862227 U CN 201420862227U CN 204369692 U CN204369692 U CN 204369692U
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CN
China
Prior art keywords
reverse osmosis
water
processing equipment
pump
ultrafiltration
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN201420862227.2U
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Chinese (zh)
Inventor
范亚斌
董军
孙德虎
王甦
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CATHAY CHEMICAL (DALIAN) Co Ltd
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CATHAY CHEMICAL (DALIAN) Co Ltd
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Priority to CN201420862227.2U priority Critical patent/CN204369692U/en
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Publication of CN204369692U publication Critical patent/CN204369692U/en
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Abstract

The utility model discloses a kind of sewage water recycling and processing equipment, comprise the water collecting basin (1), ozone catalytic reaction tank (2), ultrafiltration system (3) and the reverse osmosis system (4) that connect successively; Waste water lifting pump (6) is provided with between water collecting basin (1) and ozone catalytic reaction tank (2).This sewage water recycling and processing equipment is easy to operate, and treatment effect is stablized, and floor space is little, can in on-site construction, investment reduction, and the water outlet after process meets the requirement of existing circulating water system water quality completely.

Description

A kind of sewage water recycling and processing equipment
Technical field
The utility model relates to a kind of sewage water recycling and processing equipment.
Background technology
Petrochemical industry carries out treatment for reuse in circulating water system to externally discharged waste water, can reduce the outer water displacement of its own system on the one hand, can reduce the use to outsourcing water source on the other hand.By the contrast to the qualified sewage quality of petrochemical industry waste disposal plant, circulating water system water quality requirement, the main water-quality guideline wherein restricting operational path be Cl-, in qualified sewage, Cl-content is generally 600 ~ 1400mg/L, circulating water system requirement Cl-be not more than 200mg/L.And in current engineer applied, Cl-removal the technique of comparative maturity only has ion-exchange and membrane technique, show through many project applied research, ion exchange technique is more applicable under the condition of saltiness (TDS) <400mg/L, when TDS>400mg/L, the Technical Economy of membrane technique is better, no matter be investment cost or running cost, adopt membrane technique to be all better than the former.
At present for the reuse technology of the qualified sewer of petrochemical industry, also there is no ripe system treatment unit.
Utility model content
For the problems referred to above of prior art, the utility model provides a kind of sewage water recycling and processing equipment.
This sewage water recycling and processing equipment, comprises the water collecting basin (1), ozone catalytic reaction tank (2), ultrafiltration system (3) and the reverse osmosis system (4) that connect successively; Waste water lifting pump (6) is provided with between water collecting basin (1) and ozone catalytic reaction tank (2).
Preferably, described ultrafiltration system (3) comprises the intermediate pool (31), ultrafiltration intake pump (32), net formula self-cleaning filter (33), ultra-filtration equipment (34) and the ultrafiltration that connect successively and produces pond (35); Wherein, ultrafiltration is produced pond (35) and is connected the hyperfiltration reverse-rinsing pump (36) being used for the water in pond being pumped into ultra-filtration equipment (34), hyperfiltration reverse-rinsing pump (36) is connected by pipeline with ultra-filtration equipment (34), pipeline connects chemical cleaning system (37).In sewage treatment process, the ultra-filtration membrane in ultra-filtration equipment can cause ultrafiltration decrease in efficiency because retaining pollutent, therefore arranges chemical cleaning system (37) and often cleans ultra-filtration membrane, be more conducive to the efficiency utilization of equipment.
Preferably, described chemical cleaning system (37) comprises hydrochloric acid chemicals dosing plant (371), sodium hydroxide chemicals dosing plant (372) and sodium hypochlorite medicine adding device (373), and three devices are connected to the pipeline between hyperfiltration reverse-rinsing pump (36) and ultra-filtration equipment (34) respectively and pass through Valve controlling switch.Acid, alkali and oxygenant chemicals dosing plant are set, are applicable to the cleaning of different pollutent.
Preferably, hydrochloric acid chemicals dosing plant (371) also connects hydrochloric acid tank (3711), and sodium hydroxide chemicals dosing plant (372) also connects sodium hydroxide storage tank (3721).Due to the volatile generation acid gas of hydrochloric acid, so preferably arrange acid-fume absorber on hydrochloric acid tank, prevent its pollutant atmosphere.
Preferably, reverse osmosis system (4) comprises reverse osmosis unit (41) and reverse osmosis product pond (42), reverse osmosis unit (41) is provided with product water outlet and dense water out, product water outlet connects reverse osmosis product pond (42), is provided with the reverse osmosis flushing pump (43) for product water being pumped into reverse osmosis unit between reverse osmosis product pond (42) and reverse osmosis unit (41).Reverse osmosis unit needs often to clean, and between reverse osmosis product pond and reverse osmosis unit, therefore arranges reverse osmosis flushing pump can clean reverse osmosis unit by product water easy to use.
Preferably, also be provided with reverse osmosis booster pump (7), cartridge filter (8) and high-pressure pump (9) that pipeline successively connects between ultrafiltration system (3) and reverse osmosis system (4), the pipeline between reverse osmosis booster pump (7) and cartridge filter (8) connect respectively Scale inhibitors chemicals dosing plant (51), reductive agent chemicals dosing plant (52) and non oxidizing bactericide chemicals dosing plant (53).Produce from ultrafiltration the water flowed out in pond and still contain a lot of chemical composition, can cause damage to the reverse osmosis membrane in reverse osmosis unit, therefore before entering reverse osmosis unit, preferably add scale remover, reductive agent and non oxidizing bactericide, its composition is improved, can service life of equipment be increased.
The beneficial effect of wastewater reusing device of the present utility model: equipment operation management is simple, easy to operate, treatment effect is stablized; Floor space is little, can at on-site construction, investment reduction; Stable water outlet after process, meets the requirement of existing circulating water system water quality completely.
Accompanying drawing explanation
Fig. 1 is the utility model sewage water recycling and processing equipment structural representation.
Nomenclature:
Water collecting basin 1; Ozone catalytic reaction tank 2;
Ultrafiltration system 3; Intermediate pool 31;
Ultrafiltration intake pump 32; Net formula self-cleaning filter 33;
Ultra-filtration equipment 34; Is produced from pond 35 in ultrafiltration;
Hyperfiltration reverse-rinsing pump 36; Chemical cleaning system 37;
Hydrochloric acid chemicals dosing plant 371; Sodium hydroxide chemicals dosing plant 372;
Sodium hypochlorite medicine adding device 373; Hydrochloric acid tank 3711;
Sodium hydroxide storage tank 3721; Reverse osmosis system 4;
Reverse osmosis unit 41; Reverse osmosis product pond 42;
Reverse osmosis flushing pump 43; Scale inhibitors chemicals dosing plant 51;
Reductive agent chemicals dosing plant 52; Non oxidizing bactericide chemicals dosing plant 53;
Waste water lifting pump 6; Reverse osmosis booster pump 7;
Cartridge filter 8; High-pressure pump 9.
Embodiment
A kind of sewage water recycling and processing equipment, comprises the water collecting basin 1, ozone catalytic reaction tank 2, ultrafiltration system 3 and the reverse osmosis system 4 that connect successively; Sewage in water collecting basin 1 pumps into ozone catalytic reaction tank 2 by waste water lifting pump 6.
Sewage in water collecting basin 1 pumps into ozone catalytic reaction tank 2 by waste water lifting pump 6 and carries out catalytic ozonation, and ozone catalytic reaction tank 2 comprises an ozonizer (containing corresponding air cleaning member) and vent ozone destructor.Catalytic ozonation utilizes ozone to produce hydroxyl radical free radical-OH under the effect of catalyzer, hydroxyl radical free radical has the oxidation capacity stronger than ozone molecule, and reaction non-selectivity, can decompose a large amount of organic pollutant in sewage by Quick Oxidation, the organic dirt reducing back segment membrane process unit blocks up risk to remove light concentration organic pollutant.
Ozone has strong oxidizing property (oxidizing potential 2.07V), can carry out direct oxidation reaction with organism, but has the slow shortcoming of selectivity, speed of response; Ozone can form hydroxyl radical free radical in water simultaneously, the oxidizing potential of hydroxyl radical free radical is 2.83V, the strong oxidizer that the Nature is only second to fluorine (3.06V), can be by organic substance decomposing mineralizer as carbonic acid gas and water, this free radical reaction has the fast feature of non-selectivity, speed of response.
Seizure enrichment can be carried out to ozone in water in ozone catalytic oxidation catalyst surface and hole, add the ozone concn of local, the transformation efficiency of ozone generation hydroxyl radical free radical is increased by katalysis, very big raising hydroxy free radical concentration, make reaction effect remarkable, speed of response is faster, and organic matter degradation is more thorough fully.
The technical characterstic of ozone catalytic oxidation catalyst:
1, ozone catalytic oxidation catalyst has extremely strong seizure accumulation ability to ozone molecule.
2, by ozone catalytic oxidation catalyst surface modification, huge specific surface area and outstanding particle hole activity is made it have, thus the seizure enrichment promoted ozone in water and adsorptive power.
3, ozone catalytic oxidation catalyst surface and hole are to the seizure enrichment of ozone in water, add the ozone concn of local, and catalysis ozone produces and greatly improves hydroxy free radical concentration.Utilize the oxidisability of hydroxyl radical free radical to have the feature of non-selectivity and high efficiency, improve the degradation efficiency of system to organic pollutant.
4, by the katalysis of ozone catalytic oxidation catalyst to ozone, there is reductionoxidation polymerization and oxygenolysis and the coupling reaction deposited.
Catalytic ozonation technology possesses following characteristics:
1, catalytic efficiency is stablized, catalyzer long service life.The metallics of catalyzer is sintered in porous inorganic material surface with the form of sosoloid, and solubility rate is low and abrasion resistance good, about 5 years work-ing life.
2, equipment is few, and reference mark is few, and concise in technology is simple to operate.Whole oxidation panel only needs an ozonizer (containing corresponding air cleaning member) and catalytic ozonation pond/tower.
3, construction investment is economized, and working cost is low.The catalytic oxidation time, ozone dosage was higher at 10 ~ 30mg/L(influent COD generally at 30 ~ 90min, and the ozone dosage in corresponding reaction times is larger).
Enter ultrafiltration system 3 with except the suspended substance in anhydrating through the water of ozone catalytic reaction tank 2, comprise the impurity such as colloid, bacterium.Ultrafiltration system 3 comprises the intermediate pool 31, ultrafiltration intake pump 32, net formula self-cleaning filter 33, ultra-filtration equipment 34 and the ultrafiltration that connect successively and produces pond 35.Ultrafiltration is produced pond 35 and is connected the hyperfiltration reverse-rinsing pump 36 being used for the water in pond being pumped into ultra-filtration equipment 34, and hyperfiltration reverse-rinsing pump 36 is connected by pipeline with ultra-filtration equipment 34, pipeline connects chemical cleaning system 37.Chemical cleaning system 37 comprises hydrochloric acid chemicals dosing plant 371, sodium hydroxide chemicals dosing plant 372 and sodium hypochlorite medicine adding device 373, three devices and is connected to pipeline between hyperfiltration reverse-rinsing pump 36 and ultra-filtration equipment 34 respectively and by Valve controlling switch.Hydrochloric acid chemicals dosing plant 371 also connects hydrochloric acid tank 3711, and sodium hydroxide chemicals dosing plant 372 also connects sodium hydroxide storage tank 3721.
Waste water enters intermediate pool 31 after catalytic ozonation reaction tank 2, and enter net formula self-cleaning filter 33 by ultrafiltration intake pump 32, filtered waste water enters ultra-filtration equipment 34 and processes, and finally enters ultrafiltration and produces pond 35.
Ultrafiltration is that a kind of fluid fed tangentially moves and pressure-actuated filtration procedure, and carrys out separating particles by molecular size range.The aperture of ultra-filtration membrane is greatly in 0.002-0.1 micrometer range.Dissolved substance and the substance less than membrane pore size, can not be concentrated in relief liquor through the material of filter membrane through filter membrane as permeate.Therefore produce containing water, dissolved solids and small molecular weight material in water, and colloid, suspended particle, high-molecular-weight organic material, bacterium, virus and protozoon will be filtered removal.
Ultrafiltration is as the advantage of in-line coagulation
1, membrane filtration precision is far above traditional filtering, all can remove the colloid and particulate matter that are greater than 0.1 μm;
2, to the clearance nearly 100% of suspended particle, colloid, microorganism, bacterium, virus;
3,20 ~ 50% are reached to organic clearance;
4, little by raw water quality influence of fluctuations, stable effluent quality;
5, operating pressure is low, and energy-saving effect is remarkable;
6, can fully automatic operation;
7, the permeant flux of reverse osmosis can be significantly improved, save reverse osmosis membrane consumption;
8, significantly reduce reverse osmosis cleaning frequency, improve efficiency and the stability of reverse osmosis;
9, pretreatment chemical dosing is little, reduces disposal of pollutants.
The water that pond 35 is flowed out is produced in ultrafiltration, the pipeline towards cartridge filter is pumped into by reverse osmosis booster pump 7, when current are in pipeline, add Scale inhibitors by Scale inhibitors chemicals dosing plant 51, add reductive agent by reductive agent chemicals dosing plant 52, add sterilant by non oxidizing bactericide chemicals dosing plant 53, for reverse osmosis provides qualified water inlet, ensure the safe operation of reverse osmosis system, reduce reverse osmosis system matting frequency, extend reverse osmosis membrane work-ing life.
Reverse osmosis system 4 comprises reverse osmosis unit 41 and reverse osmosis product pond 42, reverse osmosis unit 41 is provided with product water outlet and dense water out (not shown), product water outlet connects reverse osmosis product pond 42, is provided with the reverse osmosis flushing pump 43 for product water being pumped into reverse osmosis unit between reverse osmosis product pond 42 and reverse osmosis unit 41.
Water after ultrafiltration system process enters the reverse osmosis unit 41 of reverse osmosis system 4, and through the filtration of reverse osmosis membrane, product water flows out for outside from product water outlet, and dense water is by draining into existing de-salted water unit outside dense water out, the rate of recovery is not higher than 65%.
When ultra-filtration equipment needs to clean, open reverse osmosis flushing pump 43, product water is back to reverse osmosis unit, carries out Membrane cleaning.
Reverse osmosis process:
When the film having certain perviousness is put in solution, film shows certain selective penetrated property to solvent or solute, i.e. film or solvent is passed through or solute is passed through, and the former is called infiltration, and the latter is called dialysis.
If film used can only make solvent in solution or solute separately through, solvent and solute can not pass through simultaneously, and this film is called semi-permeable membranes.Dense film is used for reverse osmosis, dialysis and electrodialysis, and ultra-filtration and millipore filtration use porous film.
Reverse osmosis is a kind of scientific approach of its naturally osmotic process anti-, infiltration and reverse osmosis have all been come by semi-permeable membranes, when separating the solution of two kinds of different concns with semi-permeable membranes, the solvent in dilute solution will enter strong solution side through semi-permeable membranes, and this phenomenon is infiltration.When applying an extraneous pressure in strong solution side, namely process of osmosis stops, and namely reaches so-called osmotic equilibrium, and the impressed pressure required for equilibrium state is called permeable pressure head.Osmotic pressure is a kind of character of solution itself, and its value and film have nothing to do.When continuing to increase the pressure of strong solution side, namely exert pressure when being greater than seepage water pressure, solvent can its original infiltration direction anti-, and enter dilute solution side by strong solution side by semi-permeable membranes, this phenomenon is called reverse osmosis.
In reverse osmosis system 3 years, ratio of desalinization is greater than 95%.Cl-process is less than 200mg/L, meets the water quality requirement of circulating water system.
Adopt above sewage water recycling and processing equipment, the data provided according to Dalian petrochemical industry, the main technical process of Dalian petrochemical industry externally discharged waste water Treatment for Reuse: water collecting basin → catalytic ozonation → self-cleaning filter → ultrafiltration → reverse osmosis → product water reuse, after the qualified sewer of sewage work is processed, water outlet can meet the requirement of existing circulating water system water quality and quantity completely, can to former 500m 3the externally discharged waste water of/h carries out complete-reclaiming, and in addition, this recycling and processing equipment independent operating, does not affect existing operational path and plant running.

Claims (6)

1. a sewage water recycling and processing equipment, is characterized in that, comprises the water collecting basin (1), ozone catalytic reaction tank (2), ultrafiltration system (3) and the reverse osmosis system (4) that connect successively; Waste water lifting pump (6) is provided with between water collecting basin (1) and ozone catalytic reaction tank (2).
2. sewage water recycling and processing equipment according to claim 1, it is characterized in that, described ultrafiltration system (3) comprises the intermediate pool (31), ultrafiltration intake pump (32), net formula self-cleaning filter (33), ultra-filtration equipment (34) and the ultrafiltration that connect successively and produces pond (35); Wherein, ultrafiltration is produced pond (35) and is connected the hyperfiltration reverse-rinsing pump (36) being used for the water in pond being pumped into ultra-filtration equipment (34), hyperfiltration reverse-rinsing pump (36) is connected by pipeline with ultra-filtration equipment (34), pipeline connects chemical cleaning system (37).
3. sewage water recycling and processing equipment according to claim 2, it is characterized in that, described chemical cleaning system (37) comprises hydrochloric acid chemicals dosing plant (371), sodium hydroxide chemicals dosing plant (372) and sodium hypochlorite medicine adding device (373), and three devices are connected to the pipeline between hyperfiltration reverse-rinsing pump (36) and ultra-filtration equipment (34) respectively and pass through Valve controlling switch.
4. sewage water recycling and processing equipment according to claim 3, it is characterized in that, hydrochloric acid chemicals dosing plant (371) also connects hydrochloric acid tank (3711), and sodium hydroxide chemicals dosing plant (372) also connects sodium hydroxide storage tank (3721).
5. sewage water recycling and processing equipment according to claim 1, it is characterized in that, reverse osmosis system (4) comprises reverse osmosis unit (41) and reverse osmosis product pond (42), reverse osmosis unit (41) is provided with product water outlet and dense water out, product water outlet connects reverse osmosis product pond (42), is provided with the reverse osmosis flushing pump (43) for product water being pumped into reverse osmosis unit between reverse osmosis product pond (42) and reverse osmosis unit (41).
6. sewage water recycling and processing equipment according to claim 1, it is characterized in that, also be provided with reverse osmosis booster pump (7), cartridge filter (8) and high-pressure pump (9) that pipeline successively connects between ultrafiltration system (3) and reverse osmosis system (4), the pipeline between reverse osmosis booster pump (7) and cartridge filter (8) connect respectively Scale inhibitors chemicals dosing plant (51), reductive agent chemicals dosing plant (52) and non oxidizing bactericide chemicals dosing plant (53).
CN201420862227.2U 2014-12-31 2014-12-31 A kind of sewage water recycling and processing equipment Expired - Fee Related CN204369692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420862227.2U CN204369692U (en) 2014-12-31 2014-12-31 A kind of sewage water recycling and processing equipment

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Application Number Priority Date Filing Date Title
CN201420862227.2U CN204369692U (en) 2014-12-31 2014-12-31 A kind of sewage water recycling and processing equipment

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CN204369692U true CN204369692U (en) 2015-06-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386695A (en) * 2019-08-01 2019-10-29 山鹰国际控股股份公司 A kind of sewerage disposing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386695A (en) * 2019-08-01 2019-10-29 山鹰国际控股股份公司 A kind of sewerage disposing system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150603

Termination date: 20201231

CF01 Termination of patent right due to non-payment of annual fee