CN203794710U - Membrane separation equipment resistant to acid, alkali and pollution - Google Patents
Membrane separation equipment resistant to acid, alkali and pollution Download PDFInfo
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- CN203794710U CN203794710U CN201420137830.4U CN201420137830U CN203794710U CN 203794710 U CN203794710 U CN 203794710U CN 201420137830 U CN201420137830 U CN 201420137830U CN 203794710 U CN203794710 U CN 203794710U
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Abstract
The utility model discloses membrane separation equipment resistant to acid, alkali and pollution. The membrane separation equipment is characterized by comprising a feed liquid collecting tank, a coarse filtration device and a primary membrane treatment device which are sequentially connected, wherein the primary membrane treatment device is a single-section circulating type short-course membrane treatment device; a membrane assembly in the single-section circulating type short-course membrane treatment device consists of not more than 6 nanofiltration membrane elements or reverse osmosis membrane elements; and concentrate water at the concrete water outlet end of the single-section circulating type short-course membrane treatment device flows back to the water inlet end of the membrane assembly or a reflux pipeline of the feed liquid collecting tank. The membrane separation equipment disclosed by the utility model has the advantages of wide applicability range, applicability to raw water treatment and recycling of various types of water, strong pollution resistance, large flux, easiness in cleaning, high automation degree of system, low operation cost, high recovery rate of produced water and favorable environmental and economic benefits; and the pH range of acid and alkali resistance is 0-14 and materials can be effectively recovered.
Description
Technical field
The utility model relates to membrane sepn field, particularly the resistant to pollution membrane separation plant of a kind of acid and alkali-resistance.
Background technology
Membrane separation plant be utilize membrane separation technique and in production plant according to the heavy mechanical equipment of the technical parameter standard manufacture of its membrane sepn, its equipment can play separation, effect is far beyond traditional separate mode.The core technology of membrane separation plant is exactly membrane separation technique, separatory membrane is the material with selective separation function, principle of work is physical mechanical screening principle, and sepn process is to utilize the selective separation mechanism of film to realize separation or the concentrated process of effective constituent between the different components of feed liquid.Membrane separation technique equipment and traditional different being of filtration: film can optionally separate in molecular range, the cross-current type operation process of film can contaminated solution blockage problem, is isolation technique and the technique that a kind of section emulates the advanced.Existing membrane separation plant ubiquity that treatment effect is undesirable, not acid and alkali-resistance, the shortcoming such as running cost is high, contamination resistance is low and processing efficiency is low.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the acid and alkali-resistance pollution-resistant membrane that a kind of processing efficiency is high and contamination resistance is strong, running cost is low separating device.
For achieving the above object, the technical scheme that the utility model proposes is: the antiacid alkali membrane separation plant of a kind of anti-pollution, is characterized in that: comprise the feed liquid collecting tank, rough filtering device, the one-level membrane treatment appts that connect successively; Described one-level membrane treatment appts is the circulating short flow process membrane treatment appts of single hop, membrane module in the circulating short flow process membrane treatment appts of described single hop is not more than nanofiltration membrane element or the reverse-osmosis membrane element of 6 by quantity and forms, and the dense water out end of the circulating short flow process membrane treatment appts of described single hop arranges concentrate recirculation to the feed-water end of membrane module or the reflux line of feed liquid collecting tank.
Preferably, the water outlet of described one-level membrane treatment appts connects advanced oxidation device or secondary membrane treatment appts.
Preferably, described secondary membrane treatment appts is the in-line reverse osmosis membrane apparatus of long flow process, membrane module in the described in-line reverse osmosis membrane apparatus of long flow process is in series by the above reverse-osmosis membrane element of seven cores, and the dense water out of the described in-line reverse osmosis membrane apparatus of long flow process is provided with a reflux line and is connected with the inlet channel of secondary membrane treatment appts.
Preferably, described nanofiltration membrane element is hollow fiber nanofiltration membrane.
Preferably, described one-level membrane treatment appts and secondary membrane treatment appts are provided with film system pressure determinator and electric conductance determination device.
Preferably, described rough filtering device is one or more the combination in the device such as filter press, multi-medium filtering, activated carbon filtration, bag type filtering, mainly suspended matter and colloidal solid, the bacterium etc. of removing in water, to meet the water inlet requirement of subsequent film separating device.
Adopt technique scheme, acid and alkali-resistance pollution-resistant membrane separating device described in the utility model, by by waste water first through the processing of the circulating short flow process membrane treatment appts of single hop, dense water is concentrated through circulation, in the time that film system pressure reaches a threshold value or dense water power dodar to preset value, the concentrated solution forming is discharged from concentrated solution discharge outlet, in order to recovered material, most of organism, colourity, hardness and being partly dissolved property salt etc. are removed and see through liquid, for the not high occasion of water quality requirement, can reach the requirement of discharge and reuse completely; Then there is the occasion of requirements at the higher level for water quality, according to the difference of processing feed liquid character, see through liquid and continue to adopt the long in-line reverse osmosis membrane apparatus of flow process or advanced oxidation device to carry out advanced treatment.Acid and alkali-resistance pollution-resistant membrane separating device described in the utility model has the advantages such as flux is large, filtration efficiency is high, the stifled ability of anti-soil is strong; The beneficial effect that this membrane separation plant has is:
1) applied widely, be applicable to former water treatment and the reuse of multiple-quality water type;
2) acid and alkali-resistance PH scope 0-14;
3) film contamination resistance is strong, and flux is large, easy cleaning;
4) system automation degree is high, and running cost is low;
5) efficient recovery material;
6) the product water rate of recovery is high;
7) environment and economy benefit is good.
Brief description of the drawings
Fig. 1 is membrane separation plant schematic diagram described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, the antiacid alkali membrane separation plant of a kind of anti-pollution, comprises the feed liquid collecting tank 1, rough filtering device 2, the one-level membrane treatment appts 3 that connect successively, secondary membrane treatment appts 5(or advanced oxidation device 4); Described one-level membrane treatment appts 3 is the circulating short flow process membrane treatment appts of single hop, membrane module in the circulating short flow process membrane treatment appts of described single hop is not more than nanofiltration membrane element or the reverse-osmosis membrane element of 6 by quantity and forms, and the dense water out end of the circulating short flow process membrane treatment appts of described single hop arranges concentrate recirculation to the feed-water end of membrane module or the one-level reflux line 7 of feed liquid collecting tank 1; The water outlet of described one-level membrane treatment appts 3 connects advanced oxidation device 4 or secondary membrane treatment appts 5; Described secondary membrane treatment appts 5 is the in-line reverse osmosis membrane apparatus of long flow process, membrane module in the described in-line reverse osmosis membrane apparatus of long flow process is in series by the above reverse-osmosis membrane element of seven cores, and the dense water out of the described in-line reverse osmosis membrane apparatus of long flow process is provided with a secondary reflux line 6 and is connected with the inlet channel of secondary membrane treatment appts 5.
Preferably, described rough filtering device 2 is one or more the combination in the device such as filter press, multi-medium filtering, activated carbon filtration, bag type filtering, mainly suspended matter and colloidal solid, the bacterium etc. of removing in water, to meet the water inlet requirement of subsequent film separating device.
Preferably, the film that described one-level membrane treatment appts adopts is preferably hollow fiber nanofiltration membrane.
Embodiment 1: the membrane separation plant that this embodiment uses is the in-line reverse osmosis membrane apparatus of the circulating short flow process membrane treatment appts+length flow process of single hop, and film in the circulating short flow process membrane treatment appts of single hop single hop is hollow fiber nanofiltration membrane.First nickel-containing waste water carries out the filtration of sand canister after being collected in feed liquid collecting tank, then enter hollow fiber nanofiltration membrane system, this system adopts the operation scheme of the circulating short flow process of single hop, by a low pressure recycle pump being set at the dense water end (W.E.) of nanofiltration membrane, a part of concentrate recirculation is arrived to nanofiltration membrane feed-water end, again carry out concentrating and separating through nanofiltration membrane together with water inlet, dense water is concentrated through repeatedly circulating, the concentrated solution forming is discharged from concentrated solution discharge outlet, in order to recovered material, nanofiltration is produced water and is entered the in-line reverse osmosis membrane apparatus of the long flow process of 7 cores, a low pressure recycle pump is set equally, carry out dense water cycle processing, can reclaim like this liquid that sees through more, and energy efficient.The nickel-containing waste water treatment capacity 300m of this factory
3/ d, under system normal operation, by water inlet, concentrated solution and product water are regularly sampled to observation, result is as follows:
(1) in concentrated solution, nickel ion content is up to 10-15g/L, and the enrichment method of having realized nickel ion reclaims;
(2) product water index result is as follows, reaches reuse water standard completely, meets workshop reuse demand, and the product water rate of recovery of whole system has reached 80%-85% simultaneously, has realized the high efficiente callback of water resources.
| Project | Produce water | Reuse standard |
| Turbidity (degree) | ≤3NTU | ≤3NTU |
| Suspended solid, mg/L | 8 | 10 |
| Colourity (degree) | 8-10 | ≤15 |
| Smelly and taste | There is no foreign odor taste, peculiar smell | Must not there be foreign odor taste, peculiar smell |
| Total dissolved solid | 380mg/l | ≤500mg/l |
| COD | 8-13mg/l | ≤20mg/l |
| Specific conductivity | ≤50us/cm | ≤50us/cm |
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (6)
1. the antiacid alkali membrane separation plant of anti-pollution, is characterized in that: comprise the feed liquid collecting tank, rough filtering device, the one-level membrane treatment appts that connect successively; Described one-level membrane treatment appts is the circulating short flow process membrane treatment appts of single hop, membrane module in the circulating short flow process membrane treatment appts of described single hop is not more than nanofiltration membrane element or the reverse-osmosis membrane element of 6 by quantity and forms, and the dense water out end of the circulating short flow process membrane treatment appts of described single hop arranges concentrate recirculation to the feed-water end of membrane module or the reflux line of feed liquid collecting tank.
2. the antiacid alkali membrane separation plant of a kind of anti-pollution according to claim 1, is characterized in that: the water outlet of described one-level membrane treatment appts connects advanced oxidation device or secondary membrane treatment appts.
3. the antiacid alkali membrane separation plant of a kind of anti-pollution according to claim 2, it is characterized in that: described secondary membrane treatment appts is the in-line reverse osmosis membrane apparatus of long flow process, membrane module in the described in-line reverse osmosis membrane apparatus of long flow process is in series by the above reverse-osmosis membrane element of seven cores, and the dense water out of the described in-line reverse osmosis membrane apparatus of long flow process is provided with a reflux line and is connected with the inlet channel of secondary membrane treatment appts.
4. according to the antiacid alkali membrane separation plant of a kind of anti-pollution described in the arbitrary claim of claim 1-3, it is characterized in that: described nanofiltration membrane element is hollow fiber nanofiltration membrane.
5. according to the antiacid alkali membrane separation plant of a kind of anti-pollution described in the arbitrary claim of claim 1-3, it is characterized in that: described one-level membrane treatment appts and secondary membrane treatment appts are provided with film system pressure determinator and electric conductance determination device.
6. according to the antiacid alkali membrane separation plant of a kind of anti-pollution described in the arbitrary claim of claim 1-3, it is characterized in that: described rough filtering device is one or more the combination in the device such as filter press, multi-medium filtering, activated carbon filtration, bag type filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137830.4U CN203794710U (en) | 2014-03-25 | 2014-03-25 | Membrane separation equipment resistant to acid, alkali and pollution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137830.4U CN203794710U (en) | 2014-03-25 | 2014-03-25 | Membrane separation equipment resistant to acid, alkali and pollution |
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| Publication Number | Publication Date |
|---|---|
| CN203794710U true CN203794710U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137830.4U Expired - Fee Related CN203794710U (en) | 2014-03-25 | 2014-03-25 | Membrane separation equipment resistant to acid, alkali and pollution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833154A (en) * | 2014-03-25 | 2014-06-04 | 威士邦（厦门）环境科技有限公司 | Acid and alkali resistant and anti-pollution membrane separation equipment |
-
2014
- 2014-03-25 CN CN201420137830.4U patent/CN203794710U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833154A (en) * | 2014-03-25 | 2014-06-04 | 威士邦（厦门）环境科技有限公司 | Acid and alkali resistant and anti-pollution membrane separation equipment |
| CN103833154B (en) * | 2014-03-25 | 2015-06-10 | 威士邦（厦门）环境科技有限公司 | Acid and alkali resistant and anti-pollution membrane separation equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20160325 |