CN105130068A - Wastewater purifying and recycling system and application method thereof - Google Patents

Wastewater purifying and recycling system and application method thereof Download PDF

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Publication number
CN105130068A
CN105130068A CN201510545039.6A CN201510545039A CN105130068A CN 105130068 A CN105130068 A CN 105130068A CN 201510545039 A CN201510545039 A CN 201510545039A CN 105130068 A CN105130068 A CN 105130068A
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China
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water
waste water
purification
tank
cavity
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CN201510545039.6A
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Chinese (zh)
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王建国
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无锡华虹信息科技有限公司
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Priority to CN201510545039.6A priority Critical patent/CN105130068A/en
Publication of CN105130068A publication Critical patent/CN105130068A/en

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Abstract

The invention relates to a wastewater purifying and recycling system and an application method thereof, and belongs to the technical field of wastewater treatment. The wastewater purifying and recycling system comprises a physical purifying device, an aeration tank, a first water electrolysis device, a second water electrolysis device, a reverse-osmosis purifying device and a purified water collecting tank. The physical purifying device, the aeration tank, the water electrolysis devices and the reverse-osmosis purifying device are sequentially communicated through pipelines. The fresh water outlet of the reverse-osmosis purifying device is communicated with the purified water collecting tank. The condensate water outlet of the reverse-osmosis purifying device is communicated with the second water electrolysis device. The water outlet of the second water electrolysis device is communicated with the purified water collecting tank. At least two filter layers in sequence from low accuracy to high accuracy are arranged between the water inlet and the water outlet of the physical purifying device. Through the combined purification of the aeration tank, the electrolytic water devices and the reverse-osmosis purifying device, wastewater is more thoroughly purified.

Description

A kind of purification of waste water recycling system and application method thereof

Technical field

The present invention relates to a kind of purification of waste water recycling system and application method thereof, belong to technical field of waste water processing.

Background technology

Along with the growth of population and the increase of per capita income, the consumption of people to water resources increases sharp.But while people are growing for the demand of water resources, pure water resources is sharply less, this is because the waste of water and pollution cause.Fresh water is a kind of resource that can regenerate, and its reproducibility depends on the water cycle of the earth.Along with industrial expansion, the increase of population, a large amount of water body is contaminated; For extracting river, many countries build dam at upper river, change streamflow regime, make the circulation of water, self-cleaning receives serious impact.

In the face of the crisis of water resources, the Recovery Purifying recycling of waste water is imperative.The object of wastewater treatment is exactly someways separate the pollutent in waste water, or is harmless stable material by its decomposition and inversion, thus sewage is purified.Generally to reach the infection preventing poisonous substance and germ; Avoid the different visible with malice of smelling, with the requirement of satisfied different purposes.Current method of wastewater treatment utilizes physics, chemistry and biological method to process waste water, makes purification of waste water, decreasing pollution, so that reach waste water reclamation, multiplexing, makes full use of water resources.But it is thorough that current water-purifying apparatus still often there will be purification, the problem such as be secondary polluted in scavenging process.

Summary of the invention

The technical problem to be solved in the present invention is, not enough for prior art, proposes a kind of purification purification of waste water recycling more thoroughly system.

The present invention is the technical scheme solving the problems of the technologies described above proposition: a kind of purification of waste water recycling system, comprises physical cleaning device, aerator tank, the first electrolytic water device, the second electrolytic water device, reverse osmosis purification device and water purification holding tank; Physical cleaning device, aerator tank, electrolytic water device and reverse osmosis purification device pass through pipeline connection successively, the water outlet of reverse osmosis purification device is communicated with water purification holding tank, the condensed water outlet of reverse osmosis purification device is communicated with the second electrolytic water device, and the second electrolytic water device water outlet is communicated with water purification holding tank; At least two-layer precision filtering layer is from low to high provided with between the water-in of physical cleaning device and water outlet.

The improvement of technique scheme is: the water inlet of physical cleaning device is provided with filter screen, is provided with non-woven fabrics and granular active carbon successively between the water outlet of filter screen and physical cleaning device.The present invention owing to arranging physical cleaning device before aerator tank, by the three layer filtration of precision filter screen from low to high, non-woven fabrics and granular active carbon, filtering comparatively easily remove hair, fiber, silt, comparatively fine granularity impurity and organic pollutant, a part of pollutent has been removed when making waste water enter aerator tank, reduce aerator tank operating pressure, improve efficiency of purifying waste water, simultaneously because hair, fiber, silt etc. affect the removal of the pollutent of aerator tank work, the working efficiency of aerator tank is improved greatly;

The improvement of technique scheme is: also comprise water heater, and water heater is aerator tank heating by coil pipe, is provided with aerator in aerator tank.The present invention, owing to utilizing water heater by coil pipe for aerator tank heats, makes temperature in aerator tank relatively high, is conducive to the carrying out of oxidizing reaction, thus effectively raises the working efficiency of aerator tank;

The improvement of technique scheme is: the negative electrode and the positive electrode that are respectively equipped with at least one pair of in the housing of the first electrolytic water device and the second electrolytic water device, and positive electrode and negative electrode are connected the positive and negative electrode of power supply respectively; Arranges a positive electrode near water inlet in housing, arranges a negative electrode in housing near water outlet, the water-in in housing and be provided with the filtering layer of at least one-level between water outlet, filtering layer is between negative electrode and positive electrode.The present invention effectively can filter the impurity and floating matter that aerator tank produces due to the filtering layer being provided with at least one-level between the water-in in the housing of the first electrolytic water device and water outlet, and filtering layer is equivalent to add barrier film in the first electrolytic water device, be divided into the electrochemical reaction cell of cathodic area, positive column in first electrolytic water device, filtering layer assembly plays again the effect of a sequestered partition in electrochemical reaction;

The improvement of technique scheme is: reverse osmosis purification device comprises at least one fluid cylinder, high-voltage oil cylinder and RO film group, piston is provided with in fluid cylinder, piston is connected with piston rod, and the other end and the high-voltage oil cylinder output terminal of piston rod are affixed, and fluid cylinder inside is divided into the first cavity and the second cavity by piston; First cavity offers waste water inlet, and waste water inlet is communicated with the first cavity by feed liquor check valve; First cavity is communicated with RO film group by discharge opeing check valve.

The improvement of technique scheme is: reverse osmosis purification device also comprises surge tank, before surge tank is arranged at RO film group, for cushioning the high pressure waste water being about to enter RO film group.The present invention, owing to arranging surge tank before RO film, can prevent the waste water of high pressure from being damaged by RO film;

A kind of purification of waste water recycling systematic difference method, comprises the following steps:

(i) physical cleaning: waste water is passed into physical cleaning device, waste water is successively by filter screen, non-woven fabrics and granular active carbon, the larger solid impurity such as hair, fiber in filter screen filtering water, the comparatively fine granularity impurity such as non-woven fabrics filtering silt, granular active carbon filtering organic pollutant;

(ii) chlorination: by chlorination in the waste water after physical cleaning, sterilization and disinfection is carried out to waste water;

(iii) aeration: the waste water after chlorination is passed into aerator tank, aerator carries out aeration to waste water, and water heater is heated aerator tank by coil pipe simultaneously, keeps temperature in aerator tank between 60-75 DEG C, to remove the organic pollutant in waste water by oxidizing reaction;

(iv) electrolysis: the waste water after aeration is passed into the first electrolytic water device, utilize electrode reaction, by directly and the comprehensive action such as indirectly redox, cohesion flocculation, absorption degradation and collaborative conversion, to Organic substance in water, heavy metal, nitrate, colloidal solid thing, bacterium, colourity, smell the pollutents such as taste and remove; The present invention is owing to carrying out electrolysis by the first electrolytic water device by the waste water after aeration, by comprehensive actions such as direct and indirectly redox, cohesion flocculation, absorption degradation and collaborative conversions, to Organic substance in water, heavy metal, nitrate, colloidal solid thing, bacterium, colourity, smell the pollutents such as taste and can effectively remove, and by electrolysis, also can effectively remove the chlorine be added to the water before;

(v) osmosis filtration: high-voltage oil cylinder pulls piston by piston rod, make to form negative pressure in the first cavity, the first cavity enters the first cavity by the waste water after the electrolysis of feed liquor check valve Automatic Extraction; The present invention, due to by the reverse osmosis of the water after electrolysis by RO film, carries out secondary removal to the inorganic salt in water, heavy metal ion, organism, colloid, bacterium, virus and concentrates, making the more thorough of purification of waste water;

After first cavity is full of, high-voltage oil cylinder promotes piston by piston rod and pressurizes to the waste water in fluid cylinder, and the high pressure waste water after pressurization enters surge tank by discharge opeing check valve and cushions;

High pressure waste water after buffering enters RO film group by pipeline, and RO film carries out secondary removal to impurity such as the inorganic salt in waste water, heavy metal ion, organism, colloid, bacterium, viruses;

The water outlet of RO film group is communicated with water purification holding tank by pipeline, and the fresh water after the filtration of RO film group enters water purification holding tank;

(vi) re-electrolysis: the condensed water outlet of RO film group is communicated with the second electrolytic water device by pipeline, condensed water enters the second electrolytic water device and carries out electrolysis, secondary removes the impurity such as inorganic salt, heavy metal ion, organism, colloid, bacterium, virus concentrated in condensed water, and the fresh water after electrolysis enters water purification holding tank by pipeline.The condensed water of the generation of reverse osmosis purification device of the present invention has concentrated not removed clean inorganic salt, heavy metal ion, organism, colloid, bacterium, virus, by the second electrolytic water device, re-electrolysis is carried out to condensed water, not removed clean pollution is removed, not only improve water reuse rate, also ensure that the final quality of purifying waste water produced.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described:

Fig. 1 is the structural representation of embodiment of the present invention purification of waste water recycling system.

Fig. 2 is the structural representation of the reverse osmosis purification device of embodiment of the present invention purification of waste water recycling system.

Number in the figure is schematically as follows: 1-physical cleaning device; 2-aerator tank; 2a-water heater; 3-first electrolytic water device; 4-reverse osmosis purification device; 5-second electrolytic water device; 6-water purification holding tank; 7-first high-voltage oil cylinder; 8-second high-voltage oil cylinder; 9-first piston bar; 10-second piston rod; 11-second cavity; 12-the 4th cavity; 13-first piston; 14-second piston; 15-first cavity; 16-the 3rd cavity; 17-first feed liquor check valve; 18-second feed liquor check valve; 19-first fluid cylinder; 20-second fluid cylinder; 21-first discharge opeing check valve; 22-second discharge opeing check valve; 23-surge tank; 24-RO film group.

Embodiment

Embodiment

The purification of waste water recycling system of the present embodiment as shown in Figure 1, 2, comprises physical cleaning device 1, aerator tank 2, water heater 2a, the first electrolytic water device 3, second electrolytic water device 5, reverse osmosis purification device 4 and water purification holding tank 6; Physical cleaning device 1, aerator tank 2, first electrolytic water device 3 and reverse osmosis purification device 4 pass through pipeline connection successively.Water heater 2a is that aerator tank 2 heats by coil pipe, is provided with aerator in aerator tank 2.The water outlet of reverse osmosis purification device 4 is communicated with water purification holding tank 6, and the condensed water outlet of reverse osmosis purification device 4 is communicated with the second electrolytic water device 5, and the second electrolytic water device 5 water outlet is communicated with water purification holding tank 6; The water inlet of physical cleaning device 1 is provided with filter screen, is provided with non-woven fabrics and granular active carbon successively between the water outlet of filter screen and physical cleaning device.

Arrange a negative electrode near water outlet in the housing of the first electrolytic water device 3 and the second electrolytic water device 5, arrange a positive electrode near water inlet in housing, positive electrode and negative electrode are connected the positive and negative electrode of power supply respectively.Be provided with activated carbon filter layer between water-in in housing and water outlet, filtering layer is between negative electrode and positive electrode.

Reverse osmosis purification device 4 comprises the first fluid cylinder 19, second fluid cylinder 20, first high-voltage oil cylinder 7, second high-voltage oil cylinder 8 and RO film group 24, establish in first fluid cylinder 19 and the second fluid cylinder 20 and be respectively equipped with first piston 13 and the second piston 14, first piston 13 and the second piston 14 are connected with first piston bar 9 and the second piston rod 10 respectively, the other end of first piston bar 9 and the second piston rod 10 is affixed with the output terminal of the first high-voltage oil cylinder 7 and the second high-voltage oil cylinder 8 respectively, and the first fluid cylinder 19 inside is divided into the first cavity 15 and the second cavity 11 by first piston 13; Second fluid cylinder 20 inside is divided into the 3rd cavity 16 and the 4th cavity 12 by the second piston 14.First cavity 15 and the 3rd cavity 16 offer waste water inlet respectively, and waste water inlet is communicated with the 3rd cavity 16 with the first cavity 15 with the second feed liquor check valve 18 respectively by the first feed liquor check valve 17; First cavity 15 is communicated with surge tank 23 with the second discharge opeing check valve 22 respectively by the first discharge opeing check valve 21 with the 3rd cavity 16, rushes tank 23 and is communicated with RO film group 24 by pipeline.

A kind of purification of waste water recycling systematic difference method, comprises the following steps:

(i) physical cleaning: waste water is passed into physical cleaning device 1, waste water is successively by filter screen, non-woven fabrics and granular active carbon, the larger solid impurity such as hair, fiber in filter screen filtering water, the comparatively fine granularity impurity such as non-woven fabrics filtering silt, granular active carbon filtering organic pollutant;

(ii) chlorination: by chlorination in the waste water after physical cleaning, sterilization and disinfection is carried out to waste water;

(iii) aeration: the waste water after chlorination is passed into aerator tank 2, aerator carries out aeration to waste water, water heater 2a is heated aerator tank 2 by coil pipe simultaneously, keeps temperature in aerator tank 2 between 60-75 DEG C, to remove the organic pollutant in waste water by oxidizing reaction;

(iv) electrolysis: the waste water after aeration is passed into the first electrolytic water device 3, utilize electrode reaction, by directly and the comprehensive action such as indirectly redox, cohesion flocculation, absorption degradation and collaborative conversion, to Organic substance in water, heavy metal, nitrate, colloidal solid thing, bacterium, colourity, smell the pollutents such as taste and remove;

(v) osmosis filtration: the first high-voltage oil cylinder 7 pulls first piston 13 by first piston bar 9, make to form negative pressure in the first cavity 15, the first cavity 15 enters the first cavity 15 by the waste water after the first feed liquor check valve 17 Automatic Extraction electrolysis;

Simultaneously, second high-voltage oil cylinder 8 promotes the second piston 14 by the second piston rod 10 and pressurizes to the waste water in the second fluid cylinder 20, high pressure waste water after pressurization enters surge tank by the second discharge opeing check valve 22 and cushions, high pressure waste water after buffering enters RO film group by pipeline, and RO film carries out secondary removal to impurity such as the inorganic salt in waste water, heavy metal ion, organism, colloid, bacterium, viruses;

After execution, the first liquid 19 cylinder and the second fluid cylinder 20 operation scheme exchange;

First liquid 19 cylinder and the second fluid cylinder 20 adopt differential type to coordinate, and ensure that the high pressure waste water exported to RO film group 24 is stable and do not interrupt;

The water outlet of RO film group 24 is communicated with water purification holding tank 6 by pipeline, and the fresh water after the filtration of RO film group 24 enters water purification holding tank 6;

(vi) re-electrolysis: the condensed water outlet of RO film group 24 is communicated with the second electrolytic water device 5 by pipeline, condensed water enters the second electrolytic water device 5 and carries out electrolysis, secondary removes the impurity such as inorganic salt, heavy metal ion, organism, colloid, bacterium, virus concentrated in condensed water, and the fresh water after electrolysis enters water purification holding tank 6 by pipeline.

The present invention is not limited to above-described embodiment.All employings are equal to the technical scheme of replacing and being formed, and all drop on the protection domain of application claims.

Claims (7)

1. a purification of waste water recycling system, is characterized in that: comprise physical cleaning device, aerator tank, the first electrolytic water device, the second electrolytic water device, reverse osmosis purification device and water purification holding tank; Described physical cleaning device, aerator tank, electrolytic water device and reverse osmosis purification device pass through pipeline connection successively, the water outlet of described reverse osmosis purification device is communicated with described water purification holding tank, the condensed water outlet of described reverse osmosis purification device is communicated with described second electrolytic water device, and described second electrolytic water device water outlet is communicated with described water purification holding tank; At least two-layer precision filtering layer is from low to high provided with between the water-in of described physical cleaning device and water outlet.
2. purification of waste water recycling system according to claim 1, is characterized in that: the water inlet of described physical cleaning device is provided with filter screen, is provided with non-woven fabrics and granular active carbon successively between the water outlet of described filter screen and described physical cleaning device.
3. purification of waste water recycling system according to claim 2, is characterized in that: also comprise water heater, and described water heater is the heating of described aerator tank by coil pipe, is provided with aerator in described aerator tank.
4. purification of waste water recycling system according to claim 3, it is characterized in that: the negative electrode and the positive electrode that are respectively equipped with at least one pair of in the housing of described first electrolytic water device and the second electrolytic water device, described positive electrode and negative electrode are connected the positive and negative electrode of power supply respectively; In described housing, a positive electrode is set near described water inlet, in described housing, a negative electrode is set near described water outlet, described water-in in described housing and be provided with the filtering layer of at least one-level between water outlet, described filtering layer is between described negative electrode and positive electrode.
5. purification of waste water recycling system according to claim 4, it is characterized in that: described reverse osmosis purification device comprises at least one fluid cylinder, high-voltage oil cylinder and RO film group, piston is provided with in described fluid cylinder, described piston is connected with piston rod, the other end and the described high-voltage oil cylinder output terminal of described piston rod are affixed, and fluid cylinder inside is divided into the first cavity and the second cavity by described piston; Described first cavity offers waste water inlet, and described waste water inlet is communicated with described first cavity by feed liquor check valve; Described first cavity is communicated with described RO film group by discharge opeing check valve.
6. purification of waste water recycling system according to claim 5, is characterized in that: described reverse osmosis purification device also comprises surge tank, before described surge tank is arranged at RO film group, for cushioning the high pressure waste water being about to enter RO film group.
7. the purification of waste water recycling systematic difference method according to claim arbitrary in claim 1-6, is characterized in that: comprise the following steps:
(i) physical cleaning: waste water is passed into physical cleaning device, waste water is successively by filter screen, non-woven fabrics and granular active carbon, the larger solid impurity such as hair, fiber in filter screen filtering water, the comparatively fine granularity impurity such as non-woven fabrics filtering silt, granular active carbon filtering organic pollutant;
(ii) chlorination: by chlorination in the waste water after physical cleaning, sterilization and disinfection is carried out to waste water;
(iii) aeration: the waste water after chlorination is passed into aerator tank, aerator carries out aeration to waste water, and water heater is heated aerator tank by coil pipe simultaneously, keeps temperature in aerator tank between 60-75 DEG C, to remove the organic pollutant in waste water by oxidizing reaction;
(iv) electrolysis: the waste water after aeration is passed into the first electrolytic water device, utilize electrode reaction, by directly and the comprehensive action such as indirectly redox, cohesion flocculation, absorption degradation and collaborative conversion, to Organic substance in water, heavy metal, nitrate, colloidal solid thing, bacterium, colourity, smell the pollutents such as taste and remove;
(v) osmosis filtration: high-voltage oil cylinder pulls piston by piston rod, make to form negative pressure in the first cavity, the first cavity enters the first cavity by the waste water after the electrolysis of feed liquor check valve Automatic Extraction;
After first cavity is full of, high-voltage oil cylinder promotes piston by piston rod and pressurizes to the waste water in fluid cylinder, and the high pressure waste water after pressurization enters surge tank by discharge opeing check valve and cushions;
High pressure waste water after buffering enters RO film group by pipeline, and RO film carries out secondary removal to impurity such as the inorganic salt in waste water, heavy metal ion, organism, colloid, bacterium, viruses;
The water outlet of RO film group is communicated with described water purification holding tank by pipeline, and the fresh water after the filtration of RO film group enters water purification holding tank;
(vi) re-electrolysis: the condensed water outlet of RO film group is communicated with described second electrolytic water device by pipeline, condensed water enters the second electrolytic water device and carries out electrolysis, secondary removes the impurity such as inorganic salt, heavy metal ion, organism, colloid, bacterium, virus concentrated in condensed water, and the fresh water after electrolysis enters water purification holding tank by pipeline.
CN201510545039.6A 2015-08-31 2015-08-31 Wastewater purifying and recycling system and application method thereof CN105130068A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838186A (en) * 2012-07-31 2012-12-26 朱荣辉 Membrane seawater desalination pressurization and energy recovery integrated method and device
CN103570166A (en) * 2012-08-03 2014-02-12 成都市思博睿科技有限公司 Recycled water production device based on electrolysis and osmotic membrane technology
CN103723870A (en) * 2012-12-28 2014-04-16 肖英 Water purifying plant capable of enhancing performance of conventional water purifier
CN204039212U (en) * 2014-07-16 2014-12-24 上海东振环保工程技术有限公司 A kind of water treating module equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838186A (en) * 2012-07-31 2012-12-26 朱荣辉 Membrane seawater desalination pressurization and energy recovery integrated method and device
CN103570166A (en) * 2012-08-03 2014-02-12 成都市思博睿科技有限公司 Recycled water production device based on electrolysis and osmotic membrane technology
CN103723870A (en) * 2012-12-28 2014-04-16 肖英 Water purifying plant capable of enhancing performance of conventional water purifier
CN204039212U (en) * 2014-07-16 2014-12-24 上海东振环保工程技术有限公司 A kind of water treating module equipment

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