CN108178251B

CN108178251B - Electro-catalysis multifunctional water purifying device and electro-catalysis multifunctional water purifying method thereof

Info

Publication number: CN108178251B
Application number: CN201810168512.7A
Authority: CN
Inventors: 李浩隆
Original assignee: Zhejiang Shengke Environmental Engineering Co ltd
Current assignee: Zhejiang Shengke Environmental Engineering Co ltd
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2020-08-07
Anticipated expiration: 2038-02-28
Also published as: CN108178251A

Abstract

The invention discloses an electrocatalysis multifunctional water purification device and an electrocatalysis multifunctional water purification method thereof. The apparatus comprises a reactor, a plurality of zones are formed inside by a plurality of partitions, three partitions are included in the plurality of partitions, and each partition can be integrally formed. A buffer oil separation settling area is formed among the second partition plate, the first side wall and the bottom wall; a first U-shaped flow channel is formed between the first partition plate and the second partition plate, a coarse filtering area is formed at the initial position of the first U-shaped flow channel, and then a rectifying area is formed; an electro-catalysis electrode plate area is formed between the first partition plate and the third partition plate, and a plurality of electro-catalysis electrode plates are arranged in the electro-catalysis electrode plate area; a U-shaped flow channel II is formed between the partition plate III and the side wall II, and a water outlet area communicated with the water outlet is formed at the opening end of the U-shaped flow channel II. Liquid at the water inlet is firstly precipitated and filtered downwards through the buffer oil separation precipitation area, then is roughly filtered upwards through the rough filtering area, then flows upwards to the U-shaped flow passage I for rectification, then turns to enter the electro-catalytic electrode plate area for catalytic reaction, then turns to enter the U-shaped flow passage II, and water is discharged through the water outlet in the water outlet area.

Description

Electro-catalysis multifunctional water purifying device and electro-catalysis multifunctional water purifying method thereof

Technical Field

The invention relates to a water purification treatment device and a water purification treatment method thereof in the technical field of water pollutant purification treatment, in particular to an electrocatalytic multifunctional water purification device and an electrocatalytic multifunctional water purification method thereof for removing organic matters, oils, impurities, suspended matters, ammonia nitrogen, anionic surfactants, chromaticity and bacterial viruses in water.

Background

Along with the shortage of water resources and the serious environmental pollution, the awareness of saving water of people is gradually improved, and the reuse of reclaimed water is more and more popularized. The grey water is sewage which does not contain feces and urine and has low pollution degree, the grey water generated in families usually accounts for 50-80% of the total water consumption, and the grey water is recycled after classified collection and treatment, so that good environmental benefit and economic benefit can be obtained. The field of reusing the treated ash water is mainly water which is not in contact with human bodies, such as water for flushing toilets, greening, car washing, road spraying, concrete stirring, fire fighting, boilers, wetlands, artificial landscape water bodies, underground reinjection water and even agricultural irrigation and the like. Research shows that 30-50% of the total amount of household water can be saved when the grey water is reused for toilet flushing or irrigation.

On a train, the amount of fresh water loaded in each compartment is more limited due to limited space. The whole water quantity is needed to be supplied to a washroom and a toilet for cleaning and cleaning, so the water consumption is very tight. Furthermore, the grey water after use in the washroom, toilet basin and the black water of the toilet flushing will be discharged together into the on-board sewage treatment plant, which will load the water volume of the treatment plant. If the ash water under the wash basin and the wash basin with lower pollution degree can be separately collected and separately treated and then reused for the non-human body contact toilet flushing, the total water consumption of the train can be saved by more than 30 percent.

The existing grey water recycling treatment technology mostly adopts oil removal, coagulation air flotation, coagulation sedimentation, filtration and biochemical treatment processes, the technologies occupy larger space and can continuously or periodically discharge sludge, and a single process is difficult to simultaneously remove various pollutants such as organic matters, ammonia nitrogen, chromaticity, bacteria and viruses, anionic surfactants, animal and vegetable oil and the like. Therefore, a multifunctional, compact footprint treatment device is needed for grey water reuse treatment.

Disclosure of Invention

The invention aims to provide an electro-catalysis multifunctional water purifying device and an electro-catalysis multifunctional water purifying method thereof, wherein the electro-catalysis multifunctional water purifying device is suitable for being installed under a hand washing basin or a water washing basin in a toilet to remove pollutants such as organic matters, ammonia nitrogen, chromaticity, bacterial viruses, anionic surfactants, animal and vegetable oil and the like in grey water, so that the grey water can be recycled and rapidly treated.

The invention is realized by adopting the following technical scheme: an electrocatalysis multifunctional water purifying device comprises a reactor, wherein a plurality of water inlets and a plurality of water outlets are arranged on the reactor; a plurality of areas are formed in the reactor through a plurality of partition plates, and liquid flowing channels are formed in the areas from the water inlet to the water outlet in sequence;

in the plurality of separators includes: one end of the first partition plate is vertically fixed on the bottom wall of the reactor, and the other end of the first partition plate is opposite to the top wall of the reactor; one end of the second partition plate is vertically fixed on the side face of the first partition plate, and the other end of the second partition plate extends towards the first side wall of the reactor and then turns to extend towards the top wall and approaches the top wall; a plurality of first circulation holes are formed in the area, parallel to the bottom wall, of the second partition plate; one end of the partition plate III is vertically fixed on the top wall, the other end of the partition plate III extends towards the bottom wall, then turns to the position above the partition plate I to extend towards the side wall II close to the reactor in an inclined mode, extends to the position between the partition plate I and the side wall II, and then turns to the position to extend towards the bottom wall and is close to the bottom wall; the second side wall is opposite to the first side wall;

wherein a buffer oil separation settling zone is formed among the second partition plate, the first side wall and the bottom wall; a first U-shaped flow channel is formed between the first partition plate and the second partition plate, a coarse filtering area is formed at the initial position of the first U-shaped flow channel, and then a rectifying area is formed; an electro-catalysis electrode plate area is formed between the first partition plate and the third partition plate, and a plurality of electro-catalysis electrode plates are arranged in the electro-catalysis electrode plate area; and a U-shaped flow channel II is formed between the partition plate III and the side wall II, and a water outlet area communicated with the water outlet is formed at the opening end of the U-shaped flow channel II.

As a further improvement of the scheme, the top wall is provided with a plurality of exhaust holes communicated with the interior of the reactor, the top wall is externally provided with an exhaust purification chamber communicated with the exhaust holes, and the gas in the reactor is purified by the exhaust purification chamber and then is exhausted.

Furthermore, the plurality of partition plates also comprise a fourth partition plate, one end of the fourth partition plate is vertically fixed on the top wall, the other end of the fourth partition plate extends towards the inclined part of the third partition plate, then turns to be inclined towards the second partition plate and extends above the inclined part of the third partition plate, then turns to be perpendicular to the second partition plate and is fixed on the second partition plate, and the fourth partition plate is provided with a plurality of second flow through holes; the water outlet area is isolated from the U-shaped flow channel II by the partition plate IV, the flow channel of the U-shaped flow channel II is narrowed, and a gas-liquid separation area is formed at the opening end of the U-shaped flow channel II; liquid in the U-shaped flow channel II is finely filtered through the flow hole II and then flows upwards to the water outlet area, and gas in the U-shaped flow channel II is gathered to the gas-liquid separation area and then is led to the exhaust hole.

Furthermore, the electrocatalysis multifunctional water purifying device also comprises a filter tube structure, wherein one end of the filter tube structure is closed, the other end of the filter tube structure is of a thread structure, the whole filter tube structure is hollow and cylindrical, and the tube wall of the filter tube structure is provided with a filter gap; the filter tube is screwed and installed with a matched threaded joint welded around the water outlet through a threaded structure.

Furthermore, the second partition plate is closer to the top wall than the first partition plate, so that a scum air floating area is formed between the second partition plate and the third partition plate, and the gas in the reactor is gathered in the scum air floating area and led to the exhaust hole.

Further, the exhaust purification chamber is provided with an exhaust port, and the gas in the reactor is purified by the exhaust purification chamber and then is discharged through the exhaust port.

As a further improvement of the scheme, the plurality of partition plates further comprise a sliding mud plate, the sliding mud plate is positioned in the buffering oil separation settling area and seals a connecting area which is arranged in the reactor and is simultaneously connected with the first side wall and the bottom wall, so that the settled mud in the buffering oil separation settling area is gathered between the first partition plate and the sliding mud plate.

As a further improvement of the scheme, the bottom end of the U-shaped flow channel II is provided with a plurality of temperature sensor interfaces, and the temperature sensor interfaces are used for installing temperature sensors for measuring the temperature of the outlet water of the electrocatalysis polar plate area.

As a further improvement of the scheme, a drain outlet is arranged on the bottom wall and corresponding to the position of the buffer oil separation settling zone, and/or a spare drain outlet is arranged on the bottom wall and corresponding to the position of the electrocatalysis electrode plate zone.

The invention also provides an electrocatalysis multifunctional water purification method of any electrocatalysis multifunctional water purification device, and the electrocatalysis multifunctional water purification method comprises the following steps:

liquid at the water inlet is firstly precipitated and filtered downwards through the buffer oil separation settling zone, then is roughly filtered upwards through the first circulation hole, then flows upwards to the first U-shaped flow channel for rectification, then turns to enter the electrocatalytic electrode plate zone for catalytic reaction, then turns to enter the second U-shaped flow channel, and water is discharged from the water outlet zone through the water outlet;

when the top wall is provided with a plurality of exhaust holes communicated with the inside of the reactor, the gas in the reactor is purified by an exhaust purification chamber and then is exhausted; and when the plurality of partition plates also comprise a partition plate IV, liquid in the U-shaped flow channel II is finely filtered through the flow hole II and then flows upwards to the water outlet area, and gas in the U-shaped flow channel II is gathered to the gas-liquid separation area and then flows to the exhaust hole.

As a further improvement of the above scheme, when the electrode plate group is assembled in the electrocatalytic electrode plate region, the electrode plate group is formed by an insulating shell, the inside of the insulating shell is the electrode plate, particle electrodes are filled between the electrode plates, each side plate of the shell is fixed on the panel of the reactor in the way of an integral component formed by groove joggle assembly, and when the electrode plate is assembled in the electrocatalytic electrode plate region, four fixing columns for positioning the electrode plate group are arranged on the inner side of the back plate of the reactor and are in socket-and-spigot correspondence with counter bores on the shell of the electrode plate group.

The electrocatalytic multifunctional water purifying device has compact integral structure, is convenient to install in a narrow space, integrates oil separation, precipitation, air floatation, electrocatalytic electrolysis, adsorption, filtration, sterilization, waste gas treatment and pollution discharge into a small reactor, is similar to a micro water treatment system, and can be used for removing pollutants such as oil, impurities of a granulator, suspended matters, organic matters, nitrogen and nitrogen, a surfactant, chromaticity, odor, bacteria and viruses in water. The invention can also be used in the occasions with water sources but no tap water, such as field operation vehicles, camps, surface water or underground water which are purified by the device, and the effluent of the reactor is subjected to microfiltration or ultrafiltration and activated carbon adsorption, thus preparing the domestic water meeting the drinking water standard.

Drawings

Fig. 1 is a schematic view of the internal structure of the multifunctional electro-catalytic water purification apparatus of embodiment 1 after removing the third sidewall.

Fig. 2 is a schematic external structure view of the electrocatalytic multifunctional water purifying device in fig. 1.

Fig. 3 is a left side view of fig. 2.

Fig. 4 is a top view of fig. 2.

Fig. 5 is a schematic view of the internal structure of the multifunctional electro-catalytic water purifying device according to embodiment 2 of the present invention after removing the third sidewall.

Fig. 6 is a schematic view of the internal structure of the multifunctional electro-catalytic water purifying device according to embodiment 3 of the present invention after removing the third sidewall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1 to 4, an electrocatalytic multifunctional water purifying device according to embodiment 1 of the present invention is shown. The multifunctional electrocatalysis water purifier mainly comprises a reactor, and can be provided with a power box which can be arranged outside the reactor side by side, if the power box is arranged outside the reactor, the power box provides power for the whole water purifier, and when the water purifier is provided with electronic devices such as a sensor and the like, the multifunctional electrocatalysis water purifier can also be provided with a controller for controlling and operating the whole water purifier.

The reactor is used for purifying water sources, various openings or through holes can be arranged on the reactor, and the number of each opening is not limited, such as a water inlet, a water outlet, a water level switch port, a temperature sensor port, a sewage draining port, an exhaust port, a sewage cleaning port, an electro-catalytic electrode plate component mounting port, an exhaust hole and the like. The water inlet can be provided with a water inlet interface 1, the water outlet can be provided with a water outlet interface 9, the sewage outlet can be provided with a sewage valve 5 or a standby sewage valve 6, the exhaust port can be provided with an exhaust interface 10, the water level switch port can be provided with a water level switch interface 8, the temperature sensor port can be provided with a temperature sensor, and the like.

A plurality of areas are formed in the reactor through a plurality of partition plates, and liquid flowing channels are sequentially formed in the areas from the water inlet to the water outlet. The plurality of partition plates comprise a first partition plate 12, a second partition plate 13, a third partition plate 14, a fourth partition plate 3 and a fifth partition plate (namely, the mud sliding plate 4).

One end of the first partition plate 12 is vertically fixed on the bottom wall 16 of the reactor, and the other end is opposite to the top wall 17 of the reactor. One end of the second partition plate 13 is vertically fixed on the side surface of the first partition plate 12, and the other end thereof extends towards the first side wall 18 of the reactor and then turns to extend towards the top wall 17 and approaches the top wall 17. The area of the second partition plate 13 parallel to the bottom wall 16 is provided with a plurality of first circulation holes. One end of the partition plate III 14 is vertically fixed on the top wall 17, and the other end thereof extends towards the bottom wall 16, then turns to extend obliquely towards the side wall II 19 close to the reactor above the partition plate I12, extends to a position between the partition plate I12 and the side wall II 19, and turns to extend towards the bottom wall 16 and close to the bottom wall 16. The second side wall 19 is arranged opposite to the first side wall 18.

And a buffer oil separation settling area 20 is formed among the second partition plate 13, the first side wall 18 and the bottom wall 16. A U-shaped flow passage I21 is formed between the first partition plate 12 and the second partition plate 13, and a coarse filtering area is formed at the beginning of the U-shaped flow passage I21 and then is a rectifying area. An electrocatalytic electrode plate area 22 is formed between the first separator 12 and the third separator 14, and a plurality of electrocatalytic electrode plates 2 are arranged in the electrocatalytic electrode plate area 22. A U-shaped flow channel II 23 is formed between the third partition plate 14 and the second side wall 19, and a water outlet area communicated with the water outlet is formed at the opening end of the U-shaped flow channel II 23.

The electrocatalysis multifunctional water purification method of the electrocatalysis multifunctional water purification device comprises the following steps: liquid at the water inlet is firstly precipitated and filtered downwards through the buffer oil separation precipitation zone 20, then is roughly filtered upwards through the first circulation hole, then flows upwards into the first U-shaped flow channel 21 for rectification, then turns to enter the electrocatalytic electrode plate zone 22 for catalytic reaction, then turns to enter the second U-shaped flow channel 23, and water is discharged through the water outlet in the water outlet zone.

One end of the partition plate four 3 is vertically fixed on the top wall 17, the other end of the partition plate four 3 extends towards the inclined part of the partition plate three 14, then turns to be inclined and extends towards the side wall two 19 above the inclined part of the partition plate three 14, then turns to be vertically extended towards the side wall two 19 and is fixed on the side wall two 19, and the inclined part of the partition plate four 3 is provided with a plurality of second flow holes. The partition plate four 3 can be provided with a second flow hole on three horizontal, inclined and vertical surfaces instead of the inclined part of the partition plate four 3.

The fourth partition plate 3 isolates the water outlet area from the second U-shaped flow passage 23, the flow passage of the second U-shaped flow passage 23 is narrowed, and a gas-liquid separation area is formed at the opening end of the second U-shaped flow passage 23. Liquid in the U-shaped flow channel II 23 is finely filtered through the flow hole II and then flows upwards to the water outlet area, and gas in the U-shaped flow channel II 23 is gathered to the gas-liquid separation area and then flows to the exhaust hole.

The electro-catalysis multifunctional water purifying device can also comprise a filter tube structure, wherein one end of the filter tube structure is closed, the other end of the filter tube structure is of a threaded structure, the whole filter tube structure is hollow and cylindrical, and the tube wall of the filter tube structure is provided with a filter gap. The gap is preferably 0.5mm wide or less. The filter tube is screwed and installed with a matched threaded joint welded around the water outlet through a threaded end.

The top wall 17 is provided with a plurality of exhaust holes communicated with the interior of the reactor, the top wall 17 is externally provided with an exhaust purification chamber 15 communicated with the exhaust holes, and the gas in the reactor is purified by the exhaust purification chamber 15 and then is exhausted. When the top wall 17 is provided with a plurality of exhaust holes communicated with the interior of the reactor, the gas in the reactor is purified by the exhaust purification chamber 15 and then discharged. And when the plurality of partition plates further comprise a partition plate four 3, the liquid in the U-shaped flow channel two 23 is finely filtered through the flow hole two and then flows upwards to the water outlet area, and the gas in the U-shaped flow channel two 23 is gathered to the gas-liquid separation area and then flows to the exhaust hole. The gas in the reactor is purified by an exhaust purification chamber 15 and then discharged from an exhaust port 10.

The sliding mud plate 4 is positioned in the buffering oil separation settling area 20, and a connecting area which is arranged in the reactor and is simultaneously connected with the side wall I18 and the bottom wall 16 is sealed, so that the settled mud in the buffering oil separation settling area 20 is gathered between the partition plate I12 and the sliding mud plate 4.

In this embodiment, a water level switch interface 8 is disposed on the second side wall 19 and below the water outlet. The bottom end of the U-shaped flow channel II 23 is provided with a plurality of temperature sensor interfaces 7, and the temperature sensor interfaces 7 are used for installing temperature sensors for measuring the temperature of the outlet water of the electrocatalysis electrode plate area 22. A drain outlet (a mountable drain valve) is arranged on the bottom wall 16 and corresponding to the position of the buffer oil separation settling zone 20, and/or a drain outlet (a mountable spare drain valve) is arranged on the bottom wall 16 and corresponding to the position of the electrocatalytic electrode plate zone 22. A waste outlet in the bottom wall 16 is not necessary and is ready for use.

The reactor of the electrocatalysis multifunctional water purifying device is internally divided into a buffer oil separation settling zone, a coarse filtration zone, a rectification zone, a contact zone, an air flotation zone, an electrocatalysis electrode plate zone, a reaction zone, a fine filtration zone, a gas-liquid separation zone and a water outlet zone by a partition plate, and the inside of the reactor is isolated by the partition plate to form two U-shaped flow channels. The same grey water of the two U-shaped flow channels is filtered by the two U-shaped flow channels in the reactor, electrolyzed, finally flows into a fine filtering area from the upper side of the tail end of the second U-shaped flow channel, filtered by the fine filtering area, enters a water outlet area and waits for use.

The electro-catalysis multifunctional water purifying device has compact structure, attractive and simple appearance, is convenient to install in a narrow space, integrates oil separation, precipitation, air floatation, electro-catalysis electrolysis, adsorption, filtration, sterilization, waste gas treatment and pollution discharge into a small reactor, is similar to a micro water treatment system, and can be used for removing pollutants such as oil, impurity of a granulator, suspended matters, organic matters, nitrogen, surfactant, chromaticity, odor, bacteria and viruses in water.

The grey water enters the reactor from a water inlet interface 1 at the top of the device, firstly enters a buffer oil separation settling zone, a filter screen with filtering pores of 0.1-2 mm is arranged in the zone, the filter screen is convenient and quick to disassemble, and the filter screen (such as a filter mesh plate or a filter screen) made of stainless steel or plastic materials can be used for filtering particle impurities. And after the ash water is stabilized in the buffer oil separation settling zone and the downward flow rate is lower than 1mm/s, the mechanical impurities of particles such as animal and vegetable oil, floating oil, silt with large specific gravity and the like carried by the ash water are separated, oil drops with the particle size of more than 100 mu m float upwards to form floating oil, and particles with large specific gravity sink into the bottom of the reactor to form bottom mud. Be equipped with blowoff valve 5 in the bottom of buffering oil removal settling zone, can regularly get rid of settled mud, get rid of the reactor for the sediment that will be better to maintain the inside dirt that does not amass of reactor, keep away from the place of blowoff valve 5 in buffering oil removal settling zone and be equipped with smooth mud board 4, be convenient for arrange settled mud to blowoff valve 5, prevent that settled mud from piling up, the design of smooth mud board 4 can be better with settled mud get rid of outside the reactor.

Because the flow channel in the reactor is of a U-shaped structure, the grey water entering the lower part of the buffer oil separation settling zone flows upwards, at the moment, the grey water passes through the first circulation hole to filter particle impurities with the diameter larger than 1mm, the grey water continuously flows upwards, and the impurities are filtered to form settled mud.

The grey water flows more stably after being rectified by the rectifying area and rises to the contact area. The grey water is fully contacted with a large amount of fine bubbles which move upwards and are generated by electrolysis of the electrocatalytic electrode plate area, the fine bubbles are adhered with fine suspended particles, oil drops, surfactant and other hydrophobic pollutants, and formed aggregates continuously rise to the air floatation area to become scum, so that the scum is separated from the grey water.

The grey water flowing through the contact zone enters another U-shaped flow channel and the grey water flows down into the electrocatalytic electrode plate zone. The electrocatalytic electrode plate area is composed of titanium-based noble metal coating net plates or flat plates which are arranged at a certain interval (1-10 mm), and particle electrodes (granular activated carbon or metal particles or other granular materials with certain conductive capacity and large specific surface area) are filled between the plates to form a three-dimensional electrode bed. The voltage and current density required by the electrode plate are supplied by a power supply, organic matters, surfactant and color-forming substances in the grey water are electrochemically combusted under the action of an electric field, and are subjected to oxidation degradation reaction with active chlorine such as hypochlorite, chlorine gas and chlorine dioxide, hydroxyl free radicals, ozone and other enhanced oxidants generated by electrolysis, so that a large amount of organic pollutants are degraded into substances such as inorganic salt, water, carbon dioxide, nitrogen and the like. Meanwhile, under the action of electric neutralization of an electric field, colloid in the ash water is destabilized, collided and flocculated into large-particle precipitates, or is brought into an air flotation zone along with the air stripping action formed by high-density micro-fine bubbles generated by the electrode plates. The air stripping effect formed by a large amount of micro bubbles generated in the electrocatalysis electrode plate area can blow gas in the ash removing water to drive a part of ash water to flow upwards and contact with the incoming flow ash water, and the flotation separation effect is fully completed in the arranged air flotation area, so that the internal circulation reflux effect is achieved. This effect is more prominent when the incoming flow rate is small.

The grey water flowing out of the electrode plate area flows downwards and passes over the partition plate of the electrocatalytic electrode plate area to flow upwards, and at the moment, strong oxidation substances generated by electrocatalytic electrolysis still continuously perform oxidation reaction with pollutants in the water. The grey water flows upwards into the fine filtering area, and a small amount of micro-fine bubbles and trace gas generated by reaction carried by water flow from the electrode plate area are desorbed and separated in the gas-liquid separation area. Meanwhile, water flows through the second through hole, a small amount of residual particles with the particle size of more than 0.3mm are intercepted, and the filtered qualified water enters a water outlet area to wait for recycling.

The electrode plate group is an integral detachable component, so that the electrode plate group is convenient to replace. The shell is made of high molecular insulating material and is prevented from contacting with the shell made of conductive material of the reactor. The electrode plate shell is processed with the slot, realizes assembled installation. And when the electrode plate is assembled, four fixing columns are arranged on the back plate of the reactor, so that the function of positioning the electrode plate set can be realized, and the electrode plate set which is installed in a hanging mode is prevented from shaking and damaging under the external force impact. In this embodiment, when the electrode plate group is assembled in the electrocatalytic electrode plate region 22, the electrode plate group includes an insulating housing, the inside is an electrode plate, particle electrodes are filled between the electrode plates, each side plate of the housing is fixed on the face plate of the reactor in the manner of an integral component formed by groove joggle assembly, when the electrode plate is assembled in the electrocatalytic electrode plate region 22, four fixing columns for positioning the electrode plate group are arranged on the inner side of the back plate of the reactor, and correspond to the counter bores of the housing of the electrode plate group in a socket joint manner.

A small amount of gas generated by the gas floating area and the gas-liquid separation area and gas brought along with inlet water flow to the top of the reactor and flow into a gas purification area arranged at the top of the reactor through porous plates respectively arranged at the top of the gas floating area and the top of the gas-liquid separation area. The holes of the porous plate can be round holes or strip-shaped holes, and have the functions of ventilation and defoaming.

The gas purification area is filled with active adsorption material 11, which can be active carbon, special adsorption resin and other materials with the functions of adsorbing gas pollutants such as residual chlorine, peculiar smell and the like, waste gas enters the area and contacts with the adsorption material 11 to generate adsorption and purification effects, and clean gas is discharged into the discharge area through the exhaust port 10. And the gas or bubbles penetrating through the porous plate may carry fine water droplets, and under the contact adhesion and aggregation action of the adsorbing material, large water droplets can be formed and flow back to the gas-liquid separation area of the gas floating area from the porous plate.

In order to discharge sewage better, two sewage outlets 5 and a standby sewage outlet 6 can be arranged on the two sewage outlets and are respectively positioned at the bottommost ends of the two U-shaped flow passages and close to the middle. If only when the automatic blowoff valve is arranged at the bottom of the first U-shaped flow channel close to the water inlet, a gap of about 1.5mm can be formed at the bottom of the rectifying partition plate, and water in the second U-shaped flow channel can be drained completely during emptying. And because the gap is small, large short flow can not be formed, even the grey water flowing into the reaction zone through the gap can be mixed with the grey water which flows out of the electrocatalytic electrode plate zone and is rich in strong oxidizing substances, and the contained pollutants are degraded together. Or the two U-shaped flow passage partition plates (rectification partition plates) are provided with inverted U-shaped pipes, and water in the second U-shaped flow passage is drained by utilizing the siphon action formed by the reduction of the water level when the first U-shaped flow passage is drained. At this time, the drain outlet at the bottom of the second U-shaped runner can be opened during regular maintenance to clean sediments.

The particle electrodes filled in the electrocatalysis electrode plate area can be selected from activated carbon after special treatment, and the activated carbon has the functions of the particle electrodes and an adsorption material, can adsorb and remove partial organic matters and has pollutants of chromaticity, peculiar smell and oils. The strong oxidation of the electrocatalysis reaction can oxidize and degrade the pollutants adsorbed by the activated carbon, thereby playing a part of the regeneration role of the activated carbon. And the filled particle electrodes can greatly reduce the resistance between electric field electrodes. The electrode plate component is of an integral detachable structure, and is convenient to take out, clean and maintain. If the electrode coating fails, the electrode coating can be returned to a factory for re-coating repair. The particle electrode that packs between the board is fixed by removable anti-oxidant, corrosion-resistant, the enclosure space that the insulation board constitutes around the plate electrode, prevents to run off, after the life-span, can take out electrode plate subassembly, unpacks the insulation board lid again, trembles out old particle electrode, and new particle electrode is gone into to the repacking, and the reactor can be put into operation again with the subassembly packing. The time for changing the particle electrode is generally not more than 15 minutes. After the life of the adsorbing material in the gas purification area is over, fixing bolts of a cover plate of the gas chamber can be screwed off, the cover plate is removed, the old adsorbing material is taken out, the inner wall is cleaned, and the pretreated adsorbing material is filled.

In order to prevent the gas of the reactor from overflowing from the water inlet, the water inlet pipe can be prolonged and stretches into 3-5 cm below the liquid level of the oil separation area, and the liquid seal effect is achieved.

In order to prevent the water body from being heated due to the fact that water does not enter for a long time and the electrode plates work all the time, a temperature sensor 7 is arranged in a position close to the electrode plates, for example, a reaction zone where the electrode plates flow out, if the water temperature reaches a set value (generally 40 ℃), the electrocatalysis electrode is switched to a standby state in a power-off mode, and when the water temperature is reduced to a set reset value (generally 35 ℃), a power supply is controlled to electrify the electrode plates, and the water body starts to.

The flow channel of the whole device can be formed by welding stainless steel, can also be formed by integral die-casting, and is preferably formed by integral die-casting. The buffering oil-separating settling zone, the coarse filtering zone, the rectifying zone, the contact zone, the air floating zone, the electrocatalytic electrode plate zone and the reaction zone of the whole device are connected into a whole according to the flow sequence to form two U-shaped flow channels. The whole runner of device is unobstructed, accords with hydrodynamics profit, solid-liquid, gas-liquid separation flow state direction, and inside does not need the pipe connection, reduces occupation space greatly, has also improved the intensity and the stability of device.

The device of the invention adopts an electrochemical method aiming at the water quality characteristics of the grey water, removes L AS, organic matters, ammonia nitrogen and chromaticity in the grey water under the direct oxidation and indirect oxidation action of an electrocatalysis electric field and the electric neutralization action of the electric field, and removes mechanical particle impurities, grease oils and suspended particles by combining mechanical filtration, gravity settling and air flotation separation, thereby realizing the removal effect of various pollutants.

The device is suitable for removing pollutants such as organic matters, ammonia nitrogen, chromaticity, bacterial viruses, anionic surfactants, animal and vegetable oils and the like in the ash water. Compared with the prior medicament oxidation, coagulating sedimentation, coagulating air flotation and biological purification technologies, the device can be arranged under a hand washing basin or a water basin in a washroom or other available spaces, and has the advantages of multiple pollutant removing types, no need of replacing filter materials, high treatment speed, small occupied space, automatic operation and convenient management and maintenance.

Example 2

Referring to fig. 5, the multifunctional electro-catalytic water purifying device of the present embodiment is not provided with the partition plate four 3, and is not compared with the multifunctional electro-catalytic water purifying device of embodiment 1 in terms of functional effect, but is also an electro-catalytic water purifying device capable of reliable operation.

In this example, the grey water collected in the wash basin was first filtered through a 2mm screen in the interior to remove large particulate impurities and then fed to the reactor. Buffering, oil separation, precipitation, rough filtration, rectification, gas-liquid contact, scum separation, electrocatalytic reaction, oxidation degradation, gas-liquid separation and fine filtration are sequentially completed in the reactor, and purified water flows out from a water outlet.

After the ash water is stabilized in the buffer zone and the downward flow velocity is lower than 1mm/s, the carried floating oil such as animal and vegetable oil, petroleum and the like, and the particulate mechanical impurities such as silt with large specific gravity are subjected to gravity separation, oil drops with the particle size of more than 100um float upwards to form floating oil, and the particles with large specific gravity sink into the bottom of the reactor to form bottom mud. The grey water entering the lower part of the buffer oil separation settling zone crosses the oil separation plate and flows upwards, and at the moment, the grey water firstly passes through the coarse filter plate to filter out particle impurities larger than 1 mm. The ash water passing through the coarse filter plate continuously flows upwards, is rectified by the rectifying area and then stably rises to the contact area, and is fully contacted with a large amount of fine bubbles moving upwards generated in the electrocatalytic electrode plate area, the fine bubbles are adhered with fine suspended particulate matters and oil drops, hydrophobic pollutants such as surfactant and the like, and formed aggregates continuously rise to the air floating area to form scum, so that the scum is separated from the ash water. And the grey water flowing into the contact zone crosses the baffle plate of the rectifying zone and then enters the area of the electrocatalytic electrode plate. The electrocatalytic electrode plate area is composed of titanium-based noble metal coating net plates or flat plates which are arranged at a certain interval (1-10 mm), and particle electrodes (granular activated carbon or metal particles or other granular materials with certain conductive capacity and large specific surface area) are filled between the plates to form a three-dimensional electrode bed. Under the action of electric field, organic matter, surfactant and colour-forming substance in the grey water are electrochemically combusted, and are made to produce oxidation degradation reaction with active chlorine (hypochlorite, chlorine dioxide, etc.), hydroxyl radical, ozone, etc. to degrade organic pollutant into inorganic salt, water, carbon dioxide, nitrogen, etc. the organic matter is made to produce electric field with high electric field strength and high voltage. Meanwhile, the colloid in the ash water is destabilized and is collided and flocculated into large-particle precipitates under the action of the electric neutralization of the electric field, or the large-particle precipitates are brought into an air flotation zone under the action of air stripping formed by high-density micro-fine bubbles generated by the electrode plates. The gas stripping effect formed by a large amount of micro-fine bubbles generated in the electrode plate area can blow gas in the ash removal water and drive a part of ash water to flow upwards in the direction of the incoming flow to form micro-bubble dissolved gas reflux water which is contacted with the incoming flow ash water, and the flotation separation effect is fully completed in the arranged gas floating area, so that the internal circulation reflux effect is achieved. This effect is more prominent when the incoming flow rate is small.

The grey water flowing out of the polar plate area flows downwards and passes over the partition board of the polar plate area and then flows upwards, and at the moment, strong oxidation substances generated by electrocatalytic electrolysis still continuously perform oxidation reaction with pollutants in the water. The grey water flows upwards into the fine filtering area, and a small amount of micro-fine bubbles and trace gas generated by reaction carried by water flow from the electrode plate area are desorbed and separated in the gas-liquid separation area. The water phase flows through a fine filter plate/pipe, the residual particles with the particle size of more than 0.3mm are intercepted, and the qualified water after filtration flows out of the reactor through a water outlet.

The gas purification area is filled with active adsorption materials, materials such as active carbon, special adsorption resin and the like which can adsorb gas pollutants such as residual chlorine, peculiar smell and the like can be adopted, waste gas enters the area and then contacts with the adsorption materials with the large specific surface area to generate an adsorption purification effect, and clean gas is discharged into the discharge area through the exhaust port. And the gas or bubbles penetrating through the gas-permeable porous plate can carry fine water drops, and can form large water drops under the contact adhesion and aggregation action of the adsorption material, and the large water drops flow back to the gas-liquid separation area of the gas floating area from the porous plate.

Floating oil and settled sludge in the buffer oil separation settling zone, impurities intercepted by the coarse filter plate, floating slag in the air floating zone and impurities intercepted by the fine filter plate can be discharged out of the reactor through a sewage outlet at the bottom of the reactor, so that no accumulated sewage is kept in the reactor. And a mud sliding plate is arranged at the position of the settling area far away from the sewage draining exit, so that the settled mud can slide to the sewage draining exit and is convenient to discharge outside the device. The reactor is drained at a time or every day, or is drained at a time according to the pollution degree of the incoming water. The sewage draining port may be provided with manual valve for timing drainage or automatic valve for controlling drainage time.

Because the pollutants intercepted by the coarse filter plate and the fine filter plate are both close to one side of the sewage discharge outlet and are filtered in an upward flow deviating mode, the pollutants can be conveniently taken away along with downward water flow during sewage discharge, the reverse water flow passing through the small gaps of the filter plates plays a role in flushing the filter plates/pipes during sewage discharge, the passing area of the filter plates/pipes is kept, and blockage is prevented. The timed pollution discharge not only discharges accumulated pollutants out of the reactor, but also prevents the enrichment of hardness components in water, and effectively slows down the formation of calcium scale on the filter plate and the electro-catalysis polar plate. In addition, the electrocatalytic power supply has a frequent electrode reversing function, and the anode and the cathode are periodically alternated, so that the phenomenon that the cathode adsorbs dirt after long-time work and the internal resistance of an electric field is increased is effectively prevented. Through the innovation of the structure principle, the regular maintenance period of the reactor can be greatly prolonged.

The drain is generally provided with two, is located two U type runners respectively the bottommost near the intermediate position. If only when the automatic blowoff valve is arranged at the bottom of the first U-shaped flow channel close to the water inlet, a gap of about 1.5mm can be formed at the bottom of the rectifying partition plate, and water in the second U-shaped flow channel can be drained completely during emptying. And because the gap is small, large short flow can not be formed, even though the grey water flowing into the electrode plate reaction area through the gap is mixed with the grey water flowing out of the electrode plate area and rich in strong oxidizing substances, and pollutants contained in the grey water are degraded together. Or the two U-shaped flow passage partition plates (rectification partition plates) are provided with inverted U-shaped pipes, and water in the second U-shaped flow passage is drained by utilizing the siphon action formed by the reduction of the water level when the first U-shaped flow passage is drained. At this time, the drain outlet at the bottom of the second U-shaped runner can be opened during regular maintenance to clean sediments.

If the particle electrode filled in the electrocatalysis electrode plate area adopts the activated carbon after special treatment, the particle electrode has the functions of the particle electrode and an adsorption material, can adsorb and remove partial organic matters, chromaticity, peculiar smell and oil pollutants, and the strong oxidation effect of the electrocatalysis reaction can oxidize and degrade the pollutants adsorbed by the activated carbon to play a part of the regeneration effect of the activated carbon. The filled particle electrode can greatly reduce the resistance between electric field electrodes and is controlled.

The electrode plate component is of an integral detachable structure, and is convenient to take out, clean and maintain. If the electrode coating fails, the electrode coating can be returned to a factory for re-coating repair. The particle electrode that packs between the board is fixed by removable anti-oxidant, corrosion-resistant, the enclosure space that the insulation board constitutes around the plate electrode, prevents to run off, after the life-span, can take out electrode plate subassembly, unpacks the insulation board lid again, trembles out old particle electrode, and new particle electrode is gone into to the repacking, and the reactor can be put into operation again with the subassembly packing. The time for changing the particle electrode is generally not more than 15 minutes. After the life of the adsorbing material in the gas purification area is over, fixing bolts of a cover plate of the gas chamber can be screwed off, the cover plate is removed, the old adsorbing material is taken out, the inner wall is cleaned, and the pretreated adsorbing material is filled.

In order to prevent water body temperature rise caused by long-time no water inflow and continuous work of the electrode plates, a temperature sensor is arranged at a position close to the electrode plates, such as a reaction zone of electrode plate outflow, a temperature signal is transmitted into a control power box, if the water temperature reaches a set value (generally 40 ℃), the electrocatalysis electrode is switched to a standby state after power failure, and when the water temperature is reduced to a set reset value (generally 35 ℃), a control power supply is switched on the electrode plates to restart work.

In order to prevent the electrode plate from being electrified and working when the reactor is emptied, a liquid level switch electrode is arranged at a position higher than the electrode plate in the reactor, such as a fine filtration area, when the water level is lower than the position of the electrode, a control power supply is enabled to power off the electrode plate, and the device is switched to a standby state or a stop state. When the water level rises to the position of the starting working electrode, the device is electrified to work.

The power supply device has the function of accumulating the working time of the electrocatalysis polar plate, and when the working time reaches a set value, managers are reminded to maintain through sound and light or a display screen. The whole reactor can be formed by welding or integral casting, and can also adopt a fully detachable assembly structure. The material can be selected from stainless steel, polymer plastics, etc.

For convenience in processing, the partition plates and the filter plates in the inner partition areas can be processed to be communicated with each other at the contact positions of the front panel and the rear panel of the reactor to a certain depth, so that the positioning welding is facilitated or the direct pressing assembly is realized. The sizes of the flow passages of the oil removal zone, the sedimentation zone and the air flotation zone can be calculated and determined according to a Stokes formula.

The device can also be used in occasions with water sources but no tap water, such as field operation vehicles, camps, surface water or underground water are purified by the device, and the effluent of the reactor is subjected to microfiltration or ultrafiltration and activated carbon adsorption to prepare domestic water meeting the drinking water standard.

Example 3

Referring to fig. 6, in the multifunctional electro-catalytic water purifying device of the present embodiment, the fine filtering area may be a fine filtering plate fixed on the front and rear panels of the reactor, or a fine filtering pipe with a threaded end and screwed to the water outlet. Holes or slits with the diameter of less than 0.5mm are processed on the fine filter plate; the fine filter tube is formed by rolling and welding wedge-shaped stainless steel mesh strips, and the smooth surface of the fine filter tube faces the incoming flow direction to prevent impurities from being intercepted and adhered. When the fine filter plate is blocked, the dirt removing cover plate can be detached, and dirt on the filter holes/seams can be removed by high-pressure water flow or a brush. If the adopted fine filter tube is blocked, the dirt cleaning cover plate can be detached firstly, and then the fine filter tube is screwed off for external cleaning. And resetting and installing after cleaning. If the reactor is polluted by the accumulated structures or oil, acidic water can be injected into the reactor to remove dirt or hot alkali liquor can be injected into the reactor to remove organic adherends such as oil during regular maintenance. Of course, the fine filter plate and the fine filter plate/pipe can also adopt stainless steel wire meshes and plastic mesh plates with the same filter aperture.

Example 4

In this embodiment, in order to prevent the electrode plate from being powered on and working when the reactor is emptied, a liquid level switch electrode is disposed at a position higher than the electrode plate in the reactor, for example, in the fine filtration region, and when the water level is lower than the electrode position, the control power supply is powered off to power off the electrode plate, and the apparatus is switched to a standby state or a shutdown state. When the water level rises to the position of the starting working electrode, the device is electrified to work.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a multi-functional purifier of electro-catalysis which characterized in that: the device comprises a reactor, wherein a plurality of water inlets and a plurality of water outlets are arranged on the reactor; a plurality of areas are formed in the reactor through a plurality of partition plates, and liquid flowing channels are formed in the areas from the water inlet to the water outlet in sequence;

in the plurality of separators includes:

a first partition plate (12) with one end vertically fixed on the bottom wall (16) of the reactor and the other end opposite to the top wall (17) of the reactor;

a second partition plate (13), one end of which is vertically fixed on the side surface of the first partition plate (12), and the other end of which extends towards the first side wall (18) of the reactor and then turns to extend towards the top wall (17) and approaches the top wall (17); a plurality of first circulation holes are formed in the area, parallel to the bottom wall (16), of the second partition plate (13);

a third partition plate (14), one end of which is vertically fixed on the top wall (17), and the other end of which extends towards the bottom wall (16), then turns to extend towards the second side wall (19) close to the reactor in an inclined way above the first partition plate (12), extends between the first partition plate (12) and the second side wall (19), and turns to extend towards the bottom wall (16) and approaches the bottom wall (16); the second side wall (19) and the first side wall (18) are arranged oppositely;

wherein a buffer oil separation settling zone (20) is formed among the second partition plate (13), the first side wall (18) and the bottom wall (16); a first U-shaped flow channel (21) is formed between the first partition plate (12) and the second partition plate (13), and a coarse filtering area is formed at the initial position of the first U-shaped flow channel (21) and then is a rectifying area; an electrocatalytic electrode plate area (22) is formed between the first separator (12) and the third separator (14), and a plurality of electrocatalytic electrode plates (2) are arranged in the electrocatalytic electrode plate area (22); a U-shaped flow channel II (23) is formed between the third partition plate (14) and the second side wall (19), and a water outlet area communicated with the water outlet is formed at the opening end of the U-shaped flow channel II (23).

2. The electro-catalytic multifunctional water purifying device as claimed in claim 1, characterized in that: the top wall (17) is provided with a plurality of exhaust holes communicated with the inside of the reactor, an exhaust purification chamber (15) communicated with the exhaust holes is arranged outside the top wall (17), and the gas in the reactor is purified by the exhaust purification chamber (15) and then is exhausted.

3. The electro-catalytic multifunctional water purifying device as claimed in claim 2, characterized in that: the plurality of partition plates also comprise a partition plate four (3), one end of the partition plate four (3) is vertically fixed on the top wall (17), the other end of the partition plate four (3) extends towards the inclined part of the partition plate three (14), then turns to be inclined and extends towards the side wall two (19) above the inclined part of the partition plate three (14), then turns to be vertically extended towards the side wall two (19) and is fixed on the side wall two (19), and the partition plate four (3) is provided with a plurality of second circulation holes; the fourth partition plate (3) separates the water outlet area from the second U-shaped flow channel (23), narrows the flow channel of the second U-shaped flow channel (23), and forms a gas-liquid separation area at the opening end of the second U-shaped flow channel (23); liquid in the U-shaped flow channel II (23) is finely filtered through the flow hole II and then flows upwards to the water outlet area, and gas in the U-shaped flow channel II (23) is gathered to the gas-liquid separation area and then flows to the exhaust hole.

4. The electro-catalytic multifunctional water purifying device as claimed in claim 2, characterized in that: the electrocatalysis multifunctional water purifying device also comprises a filter tube structure, wherein one end of the filter tube structure is closed, the other end of the filter tube structure is of a thread structure, the whole filter tube structure is hollow and cylindrical, and the tube wall of the filter tube structure is provided with a filter gap; the filter tube is screwed and installed with a matched threaded joint welded around the water outlet through a threaded structure.

5. The electro-catalytic multifunctional water purifying device as claimed in claim 2, characterized in that: the second partition (13) is closer to the top wall (17) than the first partition (12), so that a scum air floating area is formed between the second partition (13) and the third partition (14), and the gas in the reactor is gathered to the scum air floating area and led to the exhaust hole.

6. The electro-catalytic multifunctional water purifying device as claimed in claim 2, characterized in that: the exhaust purification chamber (15) is provided with an exhaust port (10), and the gas in the reactor is purified by the exhaust purification chamber (15) and then is discharged from the exhaust port (10).

7. The electro-catalytic multifunctional water purifying device as claimed in claim 1, characterized in that: the plurality of partition plates also comprise a sliding mud plate (4), the sliding mud plate (4) is positioned in the buffering oil separation settling area (20), and a connecting area which is arranged in the reactor and is simultaneously connected with the side wall I (18) and the bottom wall (16) is sealed, so that the settled mud in the buffering oil separation settling area (20) is gathered between the partition plate I (12) and the sliding mud plate (4).

8. The electro-catalytic multifunctional water purifying device as claimed in claim 1, characterized in that: the bottom end of the U-shaped flow channel II (23) is provided with a plurality of temperature sensor interfaces (7), and the temperature sensor interfaces (7) are used for installing temperature sensors for measuring the water outlet temperature of the electrocatalysis electrode plate area (22).

9. An electrocatalytic multifunctional water purification method of the electrocatalytic multifunctional water purification device as set forth in any one of claims 1 to 8, characterized in that: the electrocatalysis multifunctional water purification method comprises the following steps:

liquid at the water inlet is firstly precipitated and filtered downwards through a buffer oil separation precipitation area (20), then is roughly filtered upwards through the first circulation hole, then flows upwards into the first U-shaped flow passage (21) for rectification, then turns to enter an electro-catalytic electrode plate area (22) for catalytic reaction, then turns to enter a second U-shaped flow passage (23), and water is discharged through the water outlet in the water outlet area;

when the top wall (17) is provided with a plurality of exhaust holes communicated with the inside of the reactor, the gas in the reactor is purified by an exhaust purification chamber (15) and then is exhausted; and when the plurality of partition plates further comprise a partition plate four (3), liquid in the U-shaped flow channel two (23) is finely filtered through the flow hole two and then flows upwards to the water outlet area, and gas in the U-shaped flow channel two (23) is gathered to the gas-liquid separation area and then flows to the exhaust hole.

10. The electrocatalytic multifunctional water purification method as set forth in claim 9, wherein: when the electrode plate group is assembled in the electrocatalytic electrode plate area (22), the electrode plate group comprises an insulating shell, an electrode plate is arranged in the electrocatalytic electrode plate area, particle electrodes are filled between the electrode plates, each side plate of the shell is fixed on the panel of the reactor in the mode of an integral component formed by groove joggle assembly, and when the electrode plate is assembled in the electrocatalytic electrode plate area (22), four fixing columns for positioning the electrode plate group are arranged on the inner side of the back plate of the reactor and correspond to counter bores on the shell of the electrode plate group in a socket joint mode.