CN1242758A - Improved water purification system - Google Patents
Improved water purification system Download PDFInfo
- Publication number
- CN1242758A CN1242758A CN98800485A CN98800485A CN1242758A CN 1242758 A CN1242758 A CN 1242758A CN 98800485 A CN98800485 A CN 98800485A CN 98800485 A CN98800485 A CN 98800485A CN 1242758 A CN1242758 A CN 1242758A
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- pond
- described device
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- water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
There is an apparatus for purifying a liquid such as water using electrolysis to form a floculating agent to bind with impurities in said liquid. The apparatus comprises a tank (1) with side walls (2) which converge toward the top to an overflow outlet (3) of reduced area. There are electrodes (5, 6) arranged adjacent the bottom (7) of the tank (1). At least a portion of these electrodes (5, 6) follows the inside wall surfaces of the tank. The electrodes may be in the form of spirals which follow the wall surfaces of a circular tank and define a cavity (10) at the tank centre. The bottom (7) of the tank may also be sloped toward an outlet (24) for the removal of sediment.
Description
The present invention relates to a kind of fluid purification system.More particularly, the invention discloses a kind of improved device with electrolytic process purifying contaminated liquid such as water.
Purify waste water with electrolytic process and normally in being immersed in the pond, to apply voltage between the two or more electrodes in the sewage.The chemical reaction that takes place on electrode has produced the bubble of hydrogen and oxygen, and aluminium hydroxide or flock.Flock adheres to those and is suspended in microorganism in the water and other impurity.Then, carry bubble and rise to the water surface, and struck off as scum silica frost or mud at the water surface.In water treatment procedure, can produce a collection of purified basically water by the sewage of initial supply.Australian Patent 629305 has been described an example that adopts the treatment unit of this method in the prior art.Yet this device exists the shortcoming that surface scum is difficult to removal, and the water after the upper strata purifies can be sneaked into and pollute at least some scum silica frost again.In addition, in treating processes, the vertical wall of the disclosed holding tank of 629305 patents will adhere to or be stained with flock, therefore need clean.In addition, the described dull and stereotyped rectangular electrode of this patent needs the alignment placement and the junction circuit of relative complex in the pond.
Therefore, the objective of the invention is to overcome above-mentioned shortcoming, a kind of device with electrode method purifying contaminated liquid (as water) is provided, adhere to impurity in the above-mentioned contaminated liquid with the flocculation agent that generates, this device comprises that its sidewall is retracted to the pond of the overflow outlet that area reduces gradually to the top, along the pool wall inboard of above-mentioned basin bottom, at least the partial electrode of arranging, introduce the inlet of contaminated liquid, the outlet of liquid behind the emission purification, and the parts that electrode is connected with power supply.
Preferably this pond is a round pool, and above-mentioned electrode is parallel scroll arranges, but the center in pond does not have electrode.
The electrode area that another kind of preferred scheme is arranged on pond one side is bigger than the electrode area of opposite side.
A preferred embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the longitudinal diagram of water-purification plant of the present invention.
Fig. 2 is the amplification profile of pond along A-A line among Fig. 1.
Fig. 3 is a longitudinal diagram of showing Fig. 1 pond of best water cycle mode.
Fig. 4 is the longitudinal diagram of another embodiment of apparatus of the present invention.
Fig. 5,6 and 7 is respectively orthographic plan, longitudinal diagram and the side-view of Fig. 4 pond discharging skewed slot preferred structure.
Fig. 8 is the local section front view of the another kind of pool structure of Fig. 1 or 4 shown devices.
Fig. 9 is a synoptic diagram of showing another kind of outlet and discharging flume structure.
Figure 10 is the section plan that is illustrated in electrode lay-out in square or the rectangular pool.
At first with reference to Fig. 1, this device comprises a pond 1 made from al stainless steel or some electrically nonconducting material such as PVC, plastics or glass fibre.This pond is a round pool, and the pool wall of its sidewall 2 nearly total heights 2/3rds is outward-dipping, and this sidewall is retracted to overflow port 3 inwards with 30-60 degree angle (preferably miter angle) as circular cone then.The cross-sectional area of this overflow port is significantly less than the cross-sectional area of bottom, pond primary section.Discharging skewed slot 4 is guided to a side in pond from overflow port.Electrode (anode 5 and negative electrode 6) is arranged on the bottom 7 near the pond, as shown in Figure 2, preferably arrangement of electrodes is become scroll.Mutually insulated between the electrode, and with pond insulation, electrode is arranged along the circular pool wall in pond, and is installed on rood beam 8 and the following rood beam 9.Yet last rood beam 8 can also use the beam parts of other shape.For example, beam parts 8 can be the packing arms of four weak points, and its length is enough to reach the standard of the equispaced between the electrode.Preferably, these electrodes mainly occupy the exterior lateral area in pond, and reserve the central zone 10 in pond, and its reason will be treated hereinafter to describe.As shown in Figure 2, further preferably be that the diameter D of this central zone 10 approximately is half of pool diameter D '.It shall yet further be noted that electrode 5a and 6a that additional length is arranged on the pond sidewall relative with the discharging skewed slot.Usually preferred pond is that 3.7 cubic metres of water are housed, and total electrode region is 1.2 square metres.Concerning capturing pollutent and optimum cycle mode most effectively, in order to produce the micro bubbles of appropriate density and size, further preferably be that the height to width ratio in pond is approximately 2: 1.
When using this device, at first sewage is introduced the pond, up to arriving the water level of determining by limit switch 12 11.Preferably overflow port leaves suitable distance below 3, allows flock that the space of gathering is arranged.Usually this distance approximates the diameter of overflow port 3 greatly, reserves four times surf zone.Between electrode 5 and 6, apply the direct current or the rectified AC voltage of about 8-20 volt then, produce about 25 amperes electric current.Adjustable voltage and electric current, making distance between electrodes is optimum distance.Usually power supply can be the 1-50 volt, and concerning large scale system, electric current can be up to 250 amperes.Produced a large amount of instantaneous oxygen bubble and hydrogen gas bubbles in the pond, and Al (OH)
3Flock, Al (OH)
3Flock adsorbs those and is suspended in microorganism in the water and other pollutent.Owing to contain gas in the flock,, and be collected at the scum silica frost form on the liquid level of overflow port 3 so flocs unit constantly rises.In approximately 1-2 hour time, all impurity all can be gathered into thick alumen ustum layer by this way in the water on the water surface of overflow port 3 basically.Because the position of electrode 5,6 so in electrolytic process, the bubble of rising has souring, can prevent that any flock from sticking to the pool wall inboard near the sidewall in pond thus.
The purpose that conical top or conical top and scroll electrode are arranged is to guarantee that current B flows with the best flow direction shown in Figure 3.As shown in the figure, electrode 5,6 is arranged as far as possible near pool wall, and reserves cavity 10 at the center, pond, so that produce flow direction as shown in the figure.Water with this flow direction will rise with the sidewall of bubble along the pond, and counter-rotating flows to the center cavity 10 that is limited by electrode then, passes electrode again and upwards flows.When water flow through electrode surface, it can capture other bubble and flock.The flock that is full of micro-bubble accumulates on the water surface 11.And being lower than the zone 12 of the water surface at the center, pond, flowing of water is extremely small.In this zone, alumen ustum is easy to separate with circulating water flow, floats on the water surface 11.When the alumen ustum layer was gathered into thick scum silica frost cake 13 by this way, the bubble buoyancy that is captured will make it be deposited on the water surface.Then, passing discharging skewed slot 4 with a spot of water washes away.
By means of the top of this tepee structure and the character of flock layer, provide the mode of microorganism in a kind of new removal water such as larvae, small fish, tadpole, sword flea class and algae.Because these microorganisms often get used to moving about against current away from the flock layer, so they finally can be exhausted, be trapped in the thick flock layer, finally regularly washed away as mentioned above.
After electrolytic process is finished,, remove the alumen ustum layer that accumulates in overflow port 3 by injecting near inlet 15 (see figure 1)s at the bottom of the pond on a small quantity from the purifying waste water of tank 14.Can pre-determine the flow of these current, and control by valve 16 and center microprocessor 17.Can estimate, need be no more than the water yield of the about 1-5% of pool volume, the alumen ustum layer is risen, and make it overflow to the discharging skewed slot.In order to help flooding process, one group of air or water spouting nozzle are set at the point 18 relative with discharging skewed slot 4.These nozzles or link to each other with tank 14 by control valve 19, or link to each other with gas blower 20.As additional preferred feature, the additional electrode zone on the described side 2A of reference Fig. 2, ascending current will occur uneven, and this will make the alumen ustum layer concentrate along the direction of skewed slot 4, further be convenient to the overflow of rock flower.After removing the alumen ustum layer,, from the pond, discharge the water after purifying through outlet 15 near the bottom.A limit switch 21 preferably is set,,, prevents from water is drained by triggering the valve 22 on the outlet line by means of microprocessor 17, and the upset of bottom deposit layer.Water after the purification that a part is discharged from this pond is transported in the tank 14 and stores.Can realize balance by pipeline 23.In order regularly to wash away the pond, second outlet can be set, inject water or other cleaning liq thus, and from the pond, drain subsequently.
Fig. 4 shows an alternative embodiment of the invention, and the volume in pond 25 is 1000 liters, and a flushing pond 26 is arranged on discrete tower 27.Shown in Fig. 5,6 and 7, the shape of this pond skewed slot 28 is convenient to remove thick alumen ustum layer, and the alumen ustum layer is positioned on the liquid level of overflow port.More particularly, the height of the leading edge 28A sd so of skewed slot bottom preferably, promptly in the flushing operation process, this leading edge is parallel to the downside of alumen ustum layer.Like this when the alumen ustum layer floats to skewed slot 28 with wash-down water, the obstruction that can avoid the alumen ustum layer to cause.Preferably, the discharging skewed slot that separates with overflow port is partly exposed, so that prevent to accumulate unknown and potential explosion gases.Yet, preferably cover that part of 28B directly over the overflow port, to prevent rain and air-dry formation of disturbing the alumen ustum layer.As mentioned above, the nozzle arm (not shown) of air/water can be installed in the opposite of discharging skewed slot 28.The nozzle that unlatching links to each other with arm enters the discharging skewed slot of inclination by promoting the alumen ustum layer from overflow port, and carries out flush operation.
Although it is not shown,, in addition or replace aforesaid water to wash away mode, can also use vacuum unit, extract flock out from overflow port.
As mentioned above, the bottom in pond needs any heavy sedimental outlet that can not rise with flock of discharging.In order to prevent the water after sediment pollution purifies, preferably make sedimental outlet as far as possible away from the outlet that purifies back water.Shown in Fig. 4 and 8, the bottom 29 and 30 in pond is skewed and conical respectively, and this helps the lower-most point (as central point or a side) of sediment pile in the pond, preferably settling outlet 31 and 32 is arranged on this lower-most point.
In addition, in the embodiment shown in fig. 8, preferably original water inlet 33 is arranged on the top in pond.Can utilize the momentum that flows into current like this, stir any settling or alumen ustum of staying on the pool wall 34 of last time operating.In order to improve the souring of the current that become a mandarin, can a conical baffled 34A be installed at the inboard or the downside of inlet 33, so that provide suitable spray regime to pool wall.Really, under the situation at the bottom of adopting the inclination pond, the water inlet current that spray can be acted directly on the high side in pond, thus settling as much as possible is washed into lower settling exhaust outlet.
The cone angle that this embodiment adopts is approximately 45 degree, can use the different cone angles in about 30-60 degree scope according to water quality and pollutant type.Although operational efficiency can reduce, but still can use this scope cone angle in addition.
Of the present invention other changes the top, hemispheric pond 35 that also comprises as shown in Figure 8.In this case, raised slightly, reserved essential upstroke slope for bubble and alumen ustum are directed to outlet 37 near the hemisphere portion 36 of overflow port.
Another optional approach is as shown in Figure 9, and the top in pond is opened wide.With diversion trench or annular outer cover 37A be installed in outlet 38 under, and be looped around the outside of outlet 38.In the process of washing away, the outlet overflow of flock from opening wide falls into above-mentioned diversion trench, drains through skewed slot 39 thus.
Although spiral arrangement mode is preferred, electrode member can also adopt various spread patterns.Other possible arrangement scheme is as follows:
-anode and negative electrode are alternately arranged, and with conductor electrode are connected into the annular concentric of chrysanthemum chain,
-similar with concentric ring but the parallel semi-round ring shape that is easy to be provided with can provide the electrode of equal amount in the both sides in pond, and
-as shown in Figure 9, be arranged into the parallel rectangle similar with pond 41 shapes.
As long as the basic inboard near pool wall of electrode defines a cavity at the center, can also use various other arrangement.For example, an anode, another is two above-mentioned scrolls that parallel of negative electrode.Electrode can also be arranged in, and a scroll is made target, and another scroll is divided into top and bottom halves part, and wherein half is an anode, and second half is a negative electrode.
Anode is discharging aluminum ion in continuous consumption, and aluminum ion forms Al (OH) with hydroxide ion again
3In order to prolong the life-span of electrode, preferably exchange anode and negative electrode, make their even consumes thus.
Although concerning processing drinking water, preferably use the fine aluminium electrode, can also use impure aluminium electrode.Yet, under latter event, will occur as impurity such as Si, Fe, Pb, Cu and Zn in the water after the processing.
When removing some dissolved metal-salt, preferably use other metal electrode, increase clearance by ion-exchange.For example, can use aluminium-magnesium alloy electrode, pure magnesium electrode, aluminium-zinc alloy electrode and aluminium-nickelalloy electrode or the like.
When adopting the water after will purifying to inject the pond, the liquid level of raising overflow port source flock, thus when draining flock, can also adopt miscellaneous equipment.For example, air balls or water polo can be arranged on the inboard, pond, it is expanded, rise to the essential outlet water level of flushing operation.
Dissolving CaCO
3And MgCO
3Existence, make water that certain rigidity be arranged.The former often is used to measure water hardness.Treating processes can make some CaCO
3The indissoluble that becomes, thus from solution, be precipitated out, and taken away by alumen ustum.By using the aluminum magnesium alloy electrode, in solution, add magnesium ion, can remove these compounds, reduce water hardness.
For some application scenario or some the tap water production equipment is had the area of strict standard, also needing increases other device, so that killing bacteria or virus when breaking down in system.A kind of such system is simple silver-colored sterilizing agent dosing apparatus, when water flows out this treating pond, the reagent of specified quantitative (for example approximately being 0.02-0.05mg/l) is added in the current after the purification.Another kind of such system is when water flows out this treating pond, makes the water after all purifications all stand ultraviolet irradiation.
Should be known in and the invention provides a kind of new improved water-purification plant.Yet obviously the disclosed embodiments are preferred forms of the present invention, and concerning those skilled in the art, the present invention can also have multiple variation.Can estimate that described device can be purified waste water with the specific power consumption that is lower than water 0.5KWH per ton, this depends on volume, the electrode area in pond and the voltage that applies.The volume in imagination pond can be the volume that is raised to any easy handling and construction from about 20.
Claims (20)
1, a kind of device with electrode method purifying contaminated liquid such as water, adhere to impurity in the described contaminated liquid with the flocculation agent that generates, and flock is risen to be deposited in the top in pond, this device comprises that its sidewall is retracted to the pond of the overflow outlet of area minimizing gradually to the top, along the pool wall inboard of described basin bottom, the partial electrode at least of arranging, the inlet of introducing contaminated liquid, the outlet of liquid behind the emission purification, and the parts that electrode is connected with power supply.
2, the described device of claim 1 is characterized in that described pond is a round pool, and described electrode mainly occupies the pool side edge zone near sidewall.
3, the described device of claim 2 is characterized in that described electrode further is arranged in to limit a cavity at the center in pond.
4, the described device of claim 3 is characterized in that described electrode array becomes to comprise two parallel scrolls of anode and negative electrode.
5, the described device of claim 4 is characterized in that a described scroll makes target, and another described scroll is divided into top and bottom halves part, and wherein half is an anode, and second half is a negative electrode.
6, the described device of claim 3 is characterized in that described electrode array becomes the annular concentric that anode and negative electrode is connected into the chrysanthemum chain with conductor.
7, the described device of claim 3 is characterized in that described electrode array becomes parallel semi-round ring shape.
8, the described device of claim 3 is characterized in that described electrode is arranged into and the square or corresponding parallel rectangle of rectangular pool shape.
9, the described device of claim 3 is characterized in that providing one after electrolysis is finished, and the equipment that the liquid level in the pond is risen is in the discharging skewed slot that the flock that is deposited in the overflow exit is overflowed to link to each other with disposal facility.
10, the described device of claim 9 is characterized in that the described equipment that liquid level is promoted comprises that one is injected the inlet that purifies back liquid to described pond, or the spheroid in described pond of the discharge opeing that is suitable for expanding.
11, the described device of claim 10, it is characterized in that described electrode district with a discharging skewed slot relative side maximum.
12, the described device of claim 11 is characterized in that in the overflow outlet one or more gases or liquid jet being set, and when liquid level rose, described nozzle flowed to the discharging skewed slot by promoting described flock, and promotes the overflow of flock.
13, the described device of claim 12 is characterized in that the height of the leading edge sd so of skewed slot bottom, and in flooding process, this leading edge is parallel to the downside of alumen ustum layer, with the obstruction of avoiding the alumen ustum layer to cause.
14, the described device of claim 13 is characterized in that the discharging skewed slot that separates with overflow port partly exposes, so that prevent the accumulation of gas.
15, the described device of claim 14 is characterized in that the bottom in pond slopes downwardly into a side or is conical inclination to the center, pond, and the settling outlet is arranged on pond lower-most point or close this lower-most point place.
16, the described device of claim 15 is characterized in that the contaminated liquid import is arranged on the top in pond or the top in close pond, utilizes the momentum that flows into current thus, washes away settling or the alumen ustum stayed on pool wall or the bottom, pond.
17, the described device of claim 16 is characterized in that described contaminated liquid inlet is suitable for forming a jet water course, acts directly on the pool wall.
18, the described device of claim 17 is characterized in that the top in described pond is semisphere, is raised slightly near the hemisphere portion of overflow port, reserves upstroke slope for the alumen ustum that makes rising flows to the overflow outlet.
19, the described device of claim 17 is characterized in that the top in pond is opened wide, and diversion trench or annular outer cover is installed in the below of outlet, and be looped around outside the outlet, in flooding process, flock flows into described diversion trench or annular outer cover, discharges disposal thus thus.
20, the described device of claim 19 is characterized in that described liquid is water.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPO6230 | 1997-04-15 | ||
| AUPO6230A AUPO623097A0 (en) | 1997-04-15 | 1997-04-15 | Improved water purification system |
| PCT/AU1998/000253 WO1998046531A1 (en) | 1997-04-15 | 1998-04-14 | Improved water purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1242758A true CN1242758A (en) | 2000-01-26 |
Family
ID=3800526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98800485A Pending CN1242758A (en) | 1997-04-15 | 1998-04-14 | Improved water purification system |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1242758A (en) |
| AU (2) | AUPO623097A0 (en) |
| CA (1) | CA2257603A1 (en) |
| WO (1) | WO1998046531A1 (en) |
| ZA (1) | ZA983126B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360271A (en) * | 2018-03-26 | 2018-08-03 | 东莞市科迪实业有限公司 | A kind of aqueous, environmental protective dye liquor |
| CN113996130A (en) * | 2020-07-27 | 2022-02-01 | 长鑫存储技术有限公司 | Water storage device and exhaust gas treatment system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020094706A (en) * | 2001-06-13 | 2002-12-18 | 한무영 | Removal method of organic suspension material from livestock wastewater by electroflotation |
| WO2010025271A1 (en) * | 2008-08-29 | 2010-03-04 | The Regents Of The University Of California | Electrochemical removal of arsenic |
| RU2497756C1 (en) * | 2012-08-27 | 2013-11-10 | Акватэк Вотэ Пьюэрификейшн системс Питиай. Лтд. | Water purification tank |
| RU192801U1 (en) * | 2019-04-16 | 2019-10-01 | Алексей Сергеевич Горшков | Household device for electrochemical purification of drinking water |
| DE102022110583A1 (en) * | 2022-04-29 | 2023-11-02 | Spiraltec Gmbh | Wastewater treatment by electrocoagulation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3943044A (en) * | 1971-09-07 | 1976-03-09 | Diamond Shamrock Corporation | Method for treating sewage water |
| FR2630726B1 (en) * | 1988-04-29 | 1991-11-08 | Electricite De France | WASTEWATER TREATMENT PROCESS BY SOLUBLE ANODE ELECTROLYSIS |
-
1997
- 1997-04-15 AU AUPO6230A patent/AUPO623097A0/en not_active Abandoned
-
1998
- 1998-04-14 CA CA002257603A patent/CA2257603A1/en not_active Abandoned
- 1998-04-14 AU AU61885/98A patent/AU6188598A/en not_active Abandoned
- 1998-04-14 CN CN98800485A patent/CN1242758A/en active Pending
- 1998-04-14 ZA ZA983126A patent/ZA983126B/en unknown
- 1998-04-14 WO PCT/AU1998/000253 patent/WO1998046531A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360271A (en) * | 2018-03-26 | 2018-08-03 | 东莞市科迪实业有限公司 | A kind of aqueous, environmental protective dye liquor |
| CN113996130A (en) * | 2020-07-27 | 2022-02-01 | 长鑫存储技术有限公司 | Water storage device and exhaust gas treatment system |
| CN113996130B (en) * | 2020-07-27 | 2022-06-24 | 长鑫存储技术有限公司 | Water storage device and exhaust gas treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA983126B (en) | 1998-10-21 |
| WO1998046531A1 (en) | 1998-10-22 |
| CA2257603A1 (en) | 1998-10-22 |
| AU6188598A (en) | 1998-10-22 |
| AUPO623097A0 (en) | 1997-05-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |