CN204981376U - Low turbid consumable water treatment facilities based on submergence formula ultrafiltration technology - Google Patents
Low turbid consumable water treatment facilities based on submergence formula ultrafiltration technology Download PDFInfo
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- CN204981376U CN204981376U CN201520476774.1U CN201520476774U CN204981376U CN 204981376 U CN204981376 U CN 204981376U CN 201520476774 U CN201520476774 U CN 201520476774U CN 204981376 U CN204981376 U CN 204981376U
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Abstract
The utility model relates to a low turbid consumable water treatment facilities based on submergence formula ultrafiltration technology, it is by membrane cisterna, aeration dish, sets up the milipore filter subassembly in the membrane cisterna and wash away the fan, produce water pump, mud evacuation pump and pressure filter with the aeration of membrane cisterna through the pipe connection and form, it utilizes " submergence formula ultrafiltration + pressure filter " combination process systems to solve from the water consumption retrieval and utilization, full play the ultrafiltration of submergence formula to have an area little, characteristics such as anti impact load and antipollution ability reinforce, and utilize the huge dirty ability and the higher filter fineness of receiving of pressure filter, realize incessant row of mud of submergence formula ultrafiltration, and the row's of the setting mud system alone that need not, avoided conventional membrane cisterna to arrange the not smooth problem of mud, filtrating backward flow simultaneously, a technological process is simplified, produce the water turbidity and be less than 0.1NTU, satisfy reverse osmosis's the quality of water requirement of intaking.
Description
Technical field
The utility model belongs to low-cloudy water processing technology field, particularly a kind of low turbid consumable water treatment device based on immersion ultra-filtration technique.
Background technology
Along with RO film is in the extensive application of feedwater, stain disease reuse industry, conventional pretreatment technology is as a large amount of from water consumption in sand filtration, more medium filter, ultrafiltration, ion-exchanger etc. all produce, in order to backwash, wash away, water application rate about 5% as sub-in more medium filter, ultrafilter water application rate about 10%.The discontinuous discharge of this part water, but the short period of time water yield is comparatively large, owing to generally all adopting the product water of processing unit from water consumption, water quality is better, unique pollution factor is suspended substance, and general about about the 500mg/L of such consumable water solid suspension content, this water is called " low turbid from water consumption ".
For this partial drainage, conventional treatment method all returns technique leading portion, and so unstable water returns main technique leading portion or other processing units, can easily cause water quality and quantity to fluctuate, the steady running of severe jamming receiving unit, also can increase the load of main technique unit.Therefore, be necessary this strand of water to carry out individual curing.
Because of immersion ultrafiltration have that floor space is little, anti-shock loading and the feature such as contamination resistance is strong, at present in water treatment field widespread adoption, but there is the problems such as membrane cisterna sludge concentration changes greatly, the Membrane cleaning cycle is short, membrane cisterna spoil disposal is not smooth all in various degree in immersion ultrafiltration in application process.
Summary of the invention
The utility model is for the problem produced in low turbid consumable recovering and using technology of water and immersion ultrafiltration application process, provide that a kind of technical process simplifies, stable, turndown ratio is large and by immersion ultrafiltration and pressure filter efficient combination, by the uninterrupted spoil disposal of membrane cisterna, realize sludge concentration in pond constant and produce the excellent low turbid consumable water treatment device of water water quality.
The utility model in order to solve the problems of the technologies described above adopted technical scheme is: this device by membrane cisterna, aeration plate, be arranged on the hyperfiltration membrane assembly in membrane cisterna and wash away blower fan with membrane cisterna by the aeration that pipeline is connected, produce water pump, mud drain pump and pressure filter form;
The water inlet of above-mentioned membrane cisterna top, at the bottom of membrane cisterna pond, be equipped with aeration plate, aeration plate washes away blower fan by aerated conduit and aeration and is communicated with, and is furnished with hyperfiltration membrane assembly bracket above aeration plate, hyperfiltration membrane assembly placed by bracket, and hyperfiltration membrane assembly produces the mouth of a river and is communicated with product water pump by producing water pipe arrangement; Mud discharging mouth is provided with bottom membrane cisterna, shore pipe is communicated with mud drain pump through mud discharging mouth, the sludge outlet of mud drain pump is communicated with the muddy water entrance of pressure filter by pipeline, and the filtrate outlet of pressure filter is communicated with the water return outlet of membrane cisterna by pipeline, and filtrate is back to membrane cisterna.
Above-mentioned hyperfiltration membrane assembly forms by organizing film silk more, and film silk is the tubular fibre structure of polyvinyl chloride, polyvinylidene difluoride (PVDF), polysulfones or polyethersulfone material, and aperture is between 0.01 ~ 0.1 μm.
Above-mentioned pressure filter is the one of plate-and-frame filter press or diaphragm filter press, and cachaza water ratio is 60 ~ 80%, filter-cloth filtering precision is 10 ~ 100 μm, and the material of pressure filter can be one in terylene, cotton synthetic fibre or polypropylene fibre or mixed goods.
Above-mentioned mud drain pump is spiral pump.
The low turbid consumable water treatment device based on immersion ultra-filtration technique that the utility model provides, it utilizes " immersion ultrafiltration+pressure filter " combined process system to solve consumable Water circulation, having given full play to immersion ultrafiltration, to have floor space little, anti-shock loading and the feature such as contamination resistance is strong, and utilize the huge water environment capacity of pressure filter and higher filtering accuracy, realize the uninterrupted spoil disposal of immersion ultrafiltration, and without the need to arranging sludge drainage system separately, avoid the problem that conventional membrane cisterna spoil disposal is not smooth, filtrate backflow simultaneously, simplify technical process, produce water turbidity and be less than 0.1NTU, meet the influent quality requirement of reverse osmosis.
Compared with prior art, the utility model mainly has following beneficial effect:
1, immersed ultrafiltration membrane pond design simplifies, and without the need to arranging sludge drainage system separately, solves the problem that conventional membrane cisterna spoil disposal is not smooth, and by the aeration at the bottom of pond, suspended solid is uniformly distributed, and only need to punch skirt at pond downside wall, can realize spoil disposal by Ordinary Centrifugal Pumps.
2, conventional mud-water separation needs to carry out sludge condensation by adding PAM, and clear liquid refluxes, and thickened sludge (concentration about 2%) carries out press filtration again, and this not only invests greatly, and technical process is long, is unfavorable for that system long-term stability is run.The utility model extends pressure filter function, utilize Filter Press precision high (filtrate solid suspension content is lower than 1mg/L), mud feature capacious, spoil disposal water is without the need to reconcentration, directly can pass through Filter Press, filtrate is refluxed, and simplifies technical process, and backflow filtrate solid suspension content is lower, filter press filter cake water ratio reaches 60%.(if having particular requirement, by changing pressure filter form, water ratio can be low to moderate 20 ~ 40%)
3, by immersion ultrafiltration enter mud amount and pressure filter treatment capacity is mated, can control membrane cisterna solid suspension content is certain value, suggestion about 2000mg/L or lower, because membrane module sludge loading is low, the cycle of operation is long, and like this, immersion ultrafiltration can not arrange backwash, realizing self from water consumption is zero, and steady running 3 ~ 5 months; When transmembrane pressure reaches the limit values (general 0.4 ~ 0.6bar), then carry out conventional chemical cleaning to recover membrane flux.
4, steering logic is changed, guarantee that membrane module long-term stability is run, conventional membrane module suction pump frequency conversion constant flow runs, and the service rating of suction pump determines its suction force to film silk, when there is dirty blocking up on film silk surface, in order to ensure aquifer yield, water outlet pump frequency increases, and the suction force of film silk increases thereupon, until transmembrane pressure reaches the limit values, carry out backwash or matting subsequently, under facts have proved this steering logic, the film silk cycle of operation is short.By changing operational mode, to determine power auxiliary flow steering logic, i.e. constant power operation, when water production rate lower than set(ting)value 10% time, carry out conventional chemical cleaning and recover membrane flux, this can guarantee that suction force and gas explosion cause mud pellet raising force to match, and prevents mud pellet from entering film silk because excessive suction force causes, and causes film silk duct latch up phenomenon.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schema of embodiment 1.
Embodiment
Now in conjunction with the accompanying drawings and embodiments the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
Embodiment 1
As shown in Figure 1, the low turbid consumable water treatment device based on immersion ultra-filtration technique of the present embodiment be by membrane cisterna 1, hyperfiltration membrane assembly 2, pressure filter 3, mud drain pump 4, produce water pump 5, aeration washes away blower fan 6 and aeration plate 7 passes through pipeline communication.
The membrane cisterna 1 of the present embodiment is common immersed ultrafiltration membrane pond 1, it is top water inlet, water-in is processed with in the top left side of membrane cisterna 1, right side is processed with water return outlet, mud discharging mouth is processed with in the bottom of membrane cisterna 1, aeration plate 7 is equipped with at the bottom of membrane cisterna 1 pond, aeration plate 7 washes away blower fan 6 by aerated conduit and aeration and is communicated with, hyperfiltration membrane assembly bracket is furnished with above aeration plate 7, bracket is placed hyperfiltration membrane assembly 2, this hyperfiltration membrane assembly 2 is also conventional commercial product, adopt the hollow fiber form ultra-filtration membrane of polyvinyl chloride material, its membrane pore size is 0.01 ~ 0.1 μm, hyperfiltration membrane assembly 2 produces the mouth of a river and is communicated with product water pump 5 by producing water pipe arrangement, the product water pump 5 of the present embodiment adopts suction type to produce water pump 5, product water is pumped out in the export-oriented film of film, thus the suspended substance in water is trapped in membrane cisterna 1, wash away blower fan 6 by aeration and blast air bottom hyperfiltration membrane assembly 2, make air-flow in uphill process, drive treatment solution to form turbulent flow at face.Mud discharging mouth is processed with in the bottom of membrane cisterna 1, mud discharging mouth is provided with shore pipe, be communicated with mud drain pump 4 by shore pipe, this mud drain pump 4 is spiral pumps, it is communicated with the muddy water entrance of pressure filter 3 by pipeline, the muddy water of deposition in membrane cisterna 1 is pumped into pressure filter 3, filtered by pressure filter 3, filtrate is delivered in membrane cisterna 1 by the water return pipeline be arranged on membrane cisterna 1 water return outlet, filter cake is arranged outward, the pressure filter 3 of the present embodiment adopts material to be the plate and frame(type)filter press 3 of terylene, cachaza water ratio is 60 ~ 80%, filter-cloth filtering precision is 10 ~ 100 μm.
Whole treatment unit is stable, and it produces water turbidity and is less than 0.1NTU, meets the influent quality requirement of reverse osmosis.
Hyperfiltration membrane assembly 2 in above-described embodiment can also adopt the hollow fiber form ultra-filtration membrane of polyvinyl chloride material or polyvinylidene difluoride (PVDF) material, polysulfones material or polyethersulfone material or its mixed goods material, its membrane pore size is 0.01 ~ 0.1 μm of scope, can select according to processing environment.
In addition, pressure filter 3 of the present utility model can also adopt diaphragm filter press, the water ratio controlling its cachaza is about 60 ~ 80%, filter-cloth filtering precision is 10 ~ 100 μm of scopes, the material of canvas press cloth can be terylene, can also be the one in cotton synthetic fibre or polypropylene fibre or its mixed goods, all can change according to handling object.
During use, low in order to ensure hyperfiltration membrane assembly 2 sludge loading, the cycle of operation is long, self is avoided to produce low turbid from water consumption, control solid suspension content in membrane cisterna 1 constant, the treatment capacity entering mud amount and pressure filter 3 of adjustment hyperfiltration membrane assembly 2 is equal, when transmembrane pressure reaches the limit values (general 0.4 ~ 0.6bar), carry out conventional chemical cleaning again to lead to recover film, simultaneously, can steady in a long-termly run in order to ensure hyperfiltration membrane assembly 2, can also by changing operational mode, with constant power operation, when water production rate lower than set(ting)value 10% time, carry out conventional chemical cleaning and recover membrane flux, this can guarantee that suction force and gas explosion cause mud pellet raising force to match, prevent mud pellet from entering film silk because excessive suction force causes, cause film silk duct latch up phenomenon.
Claims (4)
1., based on a low turbid consumable water treatment device for immersion ultra-filtration technique, it is characterized in that: this device by membrane cisterna (1), aeration plate (7), be arranged on the hyperfiltration membrane assembly (2) in membrane cisterna (1) and wash away blower fan (6) with membrane cisterna (1) by the aeration that pipeline is connected, produce water pump (5), mud drain pump (4) and pressure filter (3) form;
Above-mentioned membrane cisterna (1) top intakes, aeration plate (7) is equipped with at the bottom of membrane cisterna (1) pond, aeration plate (7) washes away blower fan (6) by aerated conduit and aeration and is communicated with, hyperfiltration membrane assembly bracket is furnished with in aeration plate (7) top, bracket is placed hyperfiltration membrane assembly (2), the product mouth of a river of hyperfiltration membrane assembly (2) is communicated with product water pump (5) by producing water pipe arrangement; Membrane cisterna (1) bottom offers mud discharging mouth, shore pipe is communicated with mud drain pump (4) through mud discharging mouth, the sludge outlet of mud drain pump (4) is communicated with by the muddy water entrance of pipeline with pressure filter (3), the filtrate outlet of pressure filter (3) is communicated with by the water return outlet of pipeline with membrane cisterna (1), filtrate is back to membrane cisterna (1).
2. the low turbid consumable water treatment device based on immersion ultra-filtration technique according to claim 1, it is characterized in that: described hyperfiltration membrane assembly (2) forms by organizing film silk more, film silk is the tubular fibre structure of polyvinyl chloride, polyvinylidene difluoride (PVDF), polysulfones or polyethersulfone material, and aperture is between 0.01 ~ 0.1 μm.
3. the low turbid consumable water treatment device based on immersion ultra-filtration technique according to claim 1, is characterized in that: the one that described pressure filter (3) is plate-and-frame filter press or diaphragm filter press, filter-cloth filtering precision is 10 ~ 100 μm.
4. the low turbid consumable water treatment device based on immersion ultra-filtration technique according to claim 1, is characterized in that: described mud drain pump (4) is spiral pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520476774.1U CN204981376U (en) | 2015-07-03 | 2015-07-03 | Low turbid consumable water treatment facilities based on submergence formula ultrafiltration technology |
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| CN201520476774.1U CN204981376U (en) | 2015-07-03 | 2015-07-03 | Low turbid consumable water treatment facilities based on submergence formula ultrafiltration technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426886A (en) * | 2020-11-23 | 2021-03-02 | 西安西热水务环保有限公司 | Low-consumption high-efficiency flat ceramic membrane microfiltration system based on gas-liquid two-phase flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426886A (en) * | 2020-11-23 | 2021-03-02 | 西安西热水务环保有限公司 | Low-consumption high-efficiency flat ceramic membrane microfiltration system based on gas-liquid two-phase flow |
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Address after: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Patentee after: Shaanxi Chemical Research Institute Co.,Ltd. Address before: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Patentee before: SHAANXI RESEARCH DESIGN INSTITUTE OF PETROLEUM CHEMICAL INDUSTRY |