CN210176667U - Novel comprehensive phosphorus removal treatment system - Google Patents
Novel comprehensive phosphorus removal treatment system Download PDFInfo
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- CN210176667U CN210176667U CN201822263767.XU CN201822263767U CN210176667U CN 210176667 U CN210176667 U CN 210176667U CN 201822263767 U CN201822263767 U CN 201822263767U CN 210176667 U CN210176667 U CN 210176667U
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Abstract
The utility model relates to a novel comprehensive dephosphorization treatment system, which comprises a purification tank and an ecological filter tank, wherein the purification tank comprises a tank body, a clapboard, a filler, an aeration device and an electrolytic dephosphorization device, the left side wall of the tank body is provided with an inlet, and the right side wall of the tank body is provided with an outlet; the interior of the tank body is divided into three treatment units by partition plates, and a filler is arranged in each treatment unit; an aeration device is arranged in the tank body; an electrolytic phosphorus removal device is arranged in the tank body; the outlet of the tank body is connected with the inlet of the ecological filter tank, the ecological filter tank comprises a tank body and an adsorption material, and the adsorption material is filled in the tank body. The utility model relates to a novel comprehensive dephosphorization treatment system with a great deal of advantages such as the expense is low, the energy consumption is little, efficient, uses this device can improve the sewage treatment effect, makes the effluent satisfy one-level A's standard.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment technique and specifically relates to a novel synthesize dephosphorization processing system.
Background
Water is an essential living resource for human survival and is an important factor for ensuring the harmonious stability of the society and the production development. With the urbanization process and the accelerated development of the industry in China, the environmental protection problem, especially the sewage treatment, becomes a research hotspot. However, as a large amount of domestic and industrial sewage flows into rivers, lakes or underground water, serious pollution is caused to water bodies, and fishery water, domestic water and the like are affected. Sewage pollution has become one of the important factors restricting the development of the country, so the national discharge standard of sewage treatment plants is more and more strict. More and more municipal sewage treatment plants respond to the call of national energy conservation and emission reduction, and the emission standard is upgraded to a first-class A or higher standard from a first-class B standard in the original discharge standard of pollutants for municipal sewage treatment plants GB18918-2002, namely: the discharge indexes of COD, ammonia nitrogen, total phosphorus and the like in the sewage are improved.
At present, the sewage treatment process basically adopts an activated sludge treatment method, the discharged sludge after treatment can also become secondary pollution if not reasonably and effectively treated, the investment cost and the treatment cost are increased for the treatment process, particularly, the denitrification process needs to partially reflux the effluent of an aerobic section and is combined with the denitrification process of an anoxic section to realize systematic denitrification, so the generation of the sludge and the reflux of nitrate nitrogen sewage greatly increase the treatment cost, and the sludge discharge can also cause environmental problems. In order to realize denitrification and phosphorus reduction, the sewage treatment usually adopts an A-A-O mode, and water containing nitrate nitrogen and nitrite nitrogen in an aerobic zone is returned to an anaerobic zone and an anoxic zone by a pump for denitrification so as to realize denitrification treatment. The denitrification process adopts a reflux technology, so that a water pump is necessary, a large amount of energy is necessarily consumed, and the cost is increased. Moreover, it is most important that the effluent, especially total phosphorus in the effluent, cannot be brought to the first class A standard using the existing A-A-O model.
In addition, when the treated sewage is detected at present, even hydrochloride which is difficult to dissolve is decomposed into soluble phosphorus by a digestion method during measurement, so that the phosphorus content value in the effluent is increased and does not meet the standard of the first class A. Therefore, it is necessary to separate phosphate which has formed a poor solubility so that the effluent water is not detected as a phosphate which is poorly soluble.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a novel comprehensive dephosphorization treatment system with scientific design, reasonable structure and convenient use.
The utility model provides a its technical problem realize through following technical scheme:
a novel comprehensive dephosphorization treatment system is characterized in that: the device comprises a purification tank and an ecological filter tank, wherein the purification tank comprises a tank body, a partition plate, a filler, an aeration device and an electrolytic phosphorus removal device, an inlet is formed in the left side wall of the tank body, and an outlet is formed in the right side wall of the tank body; the interior of the tank body is divided into three treatment units by partition plates, and a filler is arranged in each treatment unit; an aeration device is arranged in the tank body; an electrolytic phosphorus removal device is arranged in the tank body; the outlet of the tank body is connected with the inlet of the ecological filter tank, the ecological filter tank comprises a tank body and an adsorption material, and the adsorption material is filled in the tank body.
Moreover, the aeration device is an aeration pipe, the aeration pipe is arranged below the filler of each treatment unit of the purifying tank, and each aeration pipe is provided with an independent aeration control switch; three aeration pipes of the purification tank are connected with the same aeration pump, and the aeration pump and the aeration control switch are positioned outside the purification tank.
And the upper part of the filler filter bed of the second treatment unit of the purification tank is provided with an electrolytic phosphorus removal device, the electrolytic phosphorus removal device comprises an outer frame and a plurality of electrode plates, the outer frame is arranged in the purification tank, the plurality of electrode plates are uniformly distributed in the outer frame and connected with a power supply, and the lower ends of the electrode plates are positioned below the liquid level of the second treatment unit of the purification tank.
Moreover, the outer frame is made of polyvinyl chloride, all the electrode plates are ferroelectric electrode plates with the size of 50cm multiplied by 30cm, the number of the electrode plates is 7+2 (connected electrodes), the distance between the electrode plates is 1cm, and a power supply connected with the electrode plates is a WYJ-10A30VDC direct current stabilized power supply.
Moreover, the adsorbing material filled in the ecological filter tank body is an inorganic mineral material.
And a plurality of vertically arranged baffles which enable water to flow to form baffling are arranged in the tank body of the ecological filter tank.
The utility model discloses an advantage and beneficial effect do:
1. the device is characterized in that an electrolytic phosphorus removal device is arranged in a second treatment unit of a purification tank, soluble ionic phosphorus-containing compounds are converted into molecules (solid) which are difficult to dissolve, an ecological filter tank is connected behind the purification tank, and the molecular (solid) phosphorus-containing compounds are subjected to physical or physical and chemical adsorption treatment instead of traditional ion exchange.
2. The device adds an ecological filter tank in the follow-up of a purification tank treatment system, and effectively adsorbs molecular phosphate through monolayer or monolayer adsorption, so that the effluent can reach the standard.
3. The utility model relates to a novel comprehensive dephosphorization processing system with a great deal of advantages such as the expense is low, the energy consumption is little, efficient, uses this device can improve the sewage treatment effect, makes the play water satisfy one-level A's standard, and this system application scope is wide, but wide application in sewage treatment such as water source ground, landscape water, mill, rural, life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
In order to facilitate understanding of the design concept of the present invention, the principle of electrolytic phosphorus removal and the experimental design process are described first:
fe produced at the anode during electrolytic phosphorus removal2+Will react with the phosphorus in the solution to form Fe3(PO4)2、FePO4And (4) precipitating. In addition, part of Fe2+Will react with OH in solution in different pH ranges-Hydroxy compound reacting to form iron and Fe (OH)2、Fe(OH)3The precipitate and the phosphorus will be adsorbed on the surface of the above materials, with the precipitate or particulate matter being removed. Simultaneously, H produced at the cathode2An air flotation effect is generated in the solution, so that the particles in the solution float to the surface of the solution to be removed. Therefore, the removal of phosphorus in the electrolytic phosphorus removal process occurs in the combined effects of precipitation, adsorption, air flotation and the like. The main electrode reactions are shown in formula (1) and formula (2), and the main reactions in the solution are shown in formula (3) to formula (7).
Anode: fe-2e ═ Fe2+(1)
Cathode: 2H++2e-＝H2(2)
4Fe2++2H2O+O2＝4Fe3++4OH-(3)
3Fe2++2PO4 3-＝Fe3(PO4)2(4)
Fe3++PO4 3-＝FePO4(5)
Fe2++2OH-＝Fe(OH)2(6)
Fe3++3OH-＝Fe(OH)3(7)
As can be seen from the formula (3), aeration accelerates Fe3+Improving the utilization efficiency of iron and reducing Fe in the effluent2+Concentration to improve phosphorus removal rate and effectively prevent Fe2+The secondary pollution problem of (2).
The electric dephosphorizing device is arranged in the second grid aerobic tank of the purifying tank, the experimental conditions are changed by adjusting the current value, and the total phosphorus, chromaticity and suspended matters of the inlet and outlet water are measured.
The determination method comprises the following steps: the total phosphorus is measured by a molybdate spectrophotometry method, suspended matters are measured by a gravimetric method, and the chromaticity is visually judged by naked eyes.
Experimental data: the inlet water is mainly office and domestic sewage, and the inlet water amount is controlled to be 20m3And d, as the pipelines adopt rain and sewage confluence, the quality of inlet water is greatly influenced by rain. The electrolysis voltage of the experiment was set for stable operation for 24 hours, sampled, filtered and then re-runAnd (4) measuring. The analytical data are presented in the table below.
From the data, the electrolytic phosphorus removal is effective for removing phosphorus in the domestic sewage, the phosphorus removal effect is increased with the increase of the current, but when the current is too large, flocs are increased, even the water chromaticity is increased, so that the proper electrolytic voltage is very critical. Considering that the phosphate in molecular state is adsorbed by the inorganic mineral material in the ecological filter tank every day, the phosphate is removed fundamentally, and the phosphorus content of the effluent is ensured to reach the standard.
Through the verification of the experimental process and the experimental data, a phosphorus removal treatment system mode capable of meeting the requirements is successfully researched, and the specific structure of the phosphorus removal treatment system mode is as follows:
a novel comprehensive phosphorus removal treatment system comprises a purification tank 3 and an ecological filter tank 9, wherein the purification tank comprises a tank body, a partition plate 8, a filler 5, an aeration device and an electrolytic phosphorus removal device 4, an inlet is formed in the left side wall of the tank body, and an outlet is formed in the right side wall of the tank body. The inside three processing unit of being cut apart into by the baffle of cell body, all install the filler in every processing unit, this filler is the buckled plate, not only has the filtering action, but also provides necessary place for the biomembrane growth.
An aeration device is arranged in the tank body, the aeration device is an aeration pipe 7, an aeration pipe is arranged below the filler of each treatment unit of the purification tank, and an independent aeration control switch 6 is arranged on each aeration pipe; three aeration pipes of the purification tank are all connected with the same aeration pump 2, and the aeration control switch and the aeration pump are both positioned outside the purification tank.
An electrolytic phosphorus removal device is arranged in the tank body, and the electrolytic phosphorus removal device is arranged on the upper part of a filler filter bed of the second treatment unit of the purification tank, so that iron ions generated by electrolysis have enough residence time to react with phosphate ions in the treated water, and phosphate which is difficult to dissolve is generated. The electrolytic dephosphorization device comprises an outer frame and a plurality of electrode plates, wherein the outer frame is arranged in a purification tank, the plurality of electrode plates are uniformly distributed and arranged in the outer frame and are connected with a power supply 1, and the lower ends of the electrode plates are positioned below the liquid level of a second treatment unit of the purification tank. In the embodiment, the outer frame is made of polyvinyl chloride, the pole plates are all ferroelectric pole plates with the size of 50cm multiplied by 30cm, the number of the pole plates is 7+2 (connected poles), the distance between the pole plates is 1cm, and a power supply connected with the pole plates is a WYJ-10A30V DC stabilized power supply.
The outlet of the tank body is connected with the inlet of the ecological filter tank, the ecological filter tank comprises a tank body and an adsorption material 11, the tank body is filled with the adsorption material, and the adsorption material is an inorganic mineral material such as volcanic rock, vermiculite and the like. A plurality of vertically arranged baffles 10 are arranged in the body of the ecological filter tank, so that water flows in a baffling way.
Claims (6)
1. A novel comprehensive dephosphorization treatment system is characterized in that: the device comprises a purification tank and an ecological filter tank, wherein the purification tank comprises a tank body, a partition plate, a filler, an aeration device and an electrolytic phosphorus removal device, an inlet is formed in the left side wall of the tank body, and an outlet is formed in the right side wall of the tank body; the interior of the tank body is divided into three treatment units by partition plates, and a filler is arranged in each treatment unit; an aeration device is arranged in the tank body; an electrolytic phosphorus removal device is arranged in the tank body; the outlet of the tank body is connected with the inlet of the ecological filter tank, the ecological filter tank comprises a tank body and an adsorption material, and the adsorption material is filled in the tank body.
2. The novel comprehensive phosphorus removal treatment system of claim 1, wherein: the aeration device is an aeration pipe, the aeration pipe is arranged below the filler of each treatment unit of the purifying tank, and each aeration pipe is provided with an independent aeration control switch; three aeration pipes of the purification tank are connected with the same aeration pump, and the aeration pump and the aeration control switch are positioned outside the purification tank.
3. The novel comprehensive phosphorus removal treatment system of claim 1, wherein: the upper part of a filler filter bed of the second treatment unit of the purification tank is provided with an electrolytic phosphorus removal device, the electrolytic phosphorus removal device comprises an outer frame and a plurality of electrode plates, the outer frame is arranged in the purification tank, the plurality of electrode plates are uniformly distributed in the outer frame and connected with a power supply, and the lower end of each electrode plate is positioned below the liquid level of the second treatment unit of the purification tank.
4. The novel comprehensive phosphorus removal treatment system of claim 3, wherein: the outer frame is made of polyvinyl chloride, the pole plates are all ferroelectric pole plates of 50cm multiplied by 30cm, the number of the pole plates is 9, 2 of the pole plates are connected with the poles, the distance between the pole plates is 1cm, and a power supply connected with the pole plates is a WYJ-10A30V DC stabilized voltage power supply.
5. The novel comprehensive phosphorus removal treatment system of claim 1, wherein: the adsorption material filled in the ecological filter tank body is inorganic mineral material.
6. The novel comprehensive phosphorus removal treatment system of claim 1, wherein: a plurality of vertically arranged baffles which enable water to flow to form baffling are arranged in a tank body of the ecological filter tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822263767.XU CN210176667U (en) | 2018-12-31 | 2018-12-31 | Novel comprehensive phosphorus removal treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822263767.XU CN210176667U (en) | 2018-12-31 | 2018-12-31 | Novel comprehensive phosphorus removal treatment system |
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| CN210176667U true CN210176667U (en) | 2020-03-24 |
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| CN201822263767.XU Expired - Fee Related CN210176667U (en) | 2018-12-31 | 2018-12-31 | Novel comprehensive phosphorus removal treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651497A (en) * | 2021-08-27 | 2021-11-16 | 辽宁华孚环境工程股份有限公司 | Combined rural domestic sewage treatment method and device |
-
2018
- 2018-12-31 CN CN201822263767.XU patent/CN210176667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651497A (en) * | 2021-08-27 | 2021-11-16 | 辽宁华孚环境工程股份有限公司 | Combined rural domestic sewage treatment method and device |
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Granted publication date: 20200324 Termination date: 20211231 |