CN203333353U - System for enriching anions in water - Google Patents
System for enriching anions in water Download PDFInfo
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- CN203333353U CN203333353U CN2013203900807U CN201320390080U CN203333353U CN 203333353 U CN203333353 U CN 203333353U CN 2013203900807 U CN2013203900807 U CN 2013203900807U CN 201320390080 U CN201320390080 U CN 201320390080U CN 203333353 U CN203333353 U CN 203333353U
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Abstract
The utility model relates to a system for enriching anions in water. The system is characterized by comprising an open nitrate-nitrogen separator, and a membrane component A, an aeration head and an electrode which are placed in the nitrate-nitrogen separator, as well as a gas pump, a gas flowmeter, a gas path pipeline, a water outlet peristaltic pump, a pressure gauge, a water inlet pump, a water inlet pipe, a water outlet pipe, a power supply, conducting wires and a time relay, wherein a water outlet of the membrane component A is sequentially connected with the water outlet pipe, the pressure gauge and the water outlet peristaltic pump and controlled by the time relay; the water inlet pump is controlled by the time relay; the aeration head is sequentially connected with the gas path pipeline, the gas flowmeter and the gas pump; the aeration head is positioned at the lower part of the membrane component A; two poles of the electrode are respectively connected with the power supply through the conducting wires, and the two poles are placed on the two sides of the membrane component A; the water inlet pump is connected with the water inlet pipe, and the tail end of the water inlet pipe is positioned in the nitrate-nitrogen separator and is close to the bottom of the nitrate-nitrogen separator; the membrane component A comprises one of anion exchange membrane, ultrafiltration membrane or microfiltration membrane and a support plate with a diversion slot and holes.
Description
Technical field
The utility model belongs to water-treatment technology field, relates in particular to negatively charged ion enrichment system in a kind of water.
Background technology
At present, NO
3 -the main method of separation and concentration has absorption and the methods such as ion exchange method, membrane absorption method and electrodialysis.Absorption and ion exchange method (as zeolite, ion exchange resin), can separate concentrated NO
3 -, but exist loading capacity limited, and regeneration frequency is high, and chemical regeneration easily causes secondary pollution problems, and therefore, the application great majority of zeolite process denitrogenation at present are for nitrogenous not high water bodys such as micro-polluted riverway water, landscape water, second pond water outlets.Electrodialysis (ED) method often is used to the NO of waste water
3 -enrichment, the method has less energy-consumption, the advantages such as high-level efficiency, but electrodialysis has certain limitation, only allow specific ion to see through film, and water molecules can not see through, and when film pollutes, film cleaning difficulty is very large.
The utility model content
The purpose of this utility model is for existing NO
3 -the deficiency of method for separating and concentrating and defect, provide nitre nitrogen enriching method and device in a kind of water, the method and device can be in single processing unit to water in nitre nitrogen carry out enrichment, the system water outlet contains NO
3 -concentration is higher, and then has realized the enrichment of nitre nitrogen, and apparatus structure is simple, is convenient to the actually operating operation.
The purpose of this utility model is achieved through the following technical solutions:
Negatively charged ion enrichment system in a kind of water is characterized in that: this device comprises uncovered nitre nitrogen separator, is placed on membrane module A, aeration head and electrode in nitre nitrogen separator, air pump, gas meter, gas circuit pipeline, the water outlet peristaltic pump, tensimeter, intake pump, water inlet pipe, rising pipe, power supply, wire, the time relay; Membrane module A water outlet is connected successively with rising pipe, tensimeter and water outlet peristaltic pump, and is subject to the control of the time relay; Intake pump is controlled by the time relay; Aeration head is connected successively with gas circuit pipeline, gas meter and air pump; Aeration head is positioned at membrane module A bottom; The two poles of the earth of electrode are connected with power supply respectively through wire, and the two poles of the earth are placed on membrane module A both sides; Intake pump taps into water pipe, and the water inlet pipe end is positioned at nitre nitrogen separator, and near nitre nitrogen separator bottom; Membrane module A forms by anion-exchange membrane, ultra-filtration membrane or microfiltration membrane with the back up pad of diversion trench and hole, and one of anion-exchange membrane, ultra-filtration membrane or microfiltration membrane are separately positioned on and support version both sides; Electrode adopts tabular or cylindric Graphite Electrodes.
A kind of nitre nitrogen enriching method that utilizes said apparatus, its step comprises:
(1) former water is introduced: former water, after the intake pump supercharging, enters in nitre nitrogen separator with 4-6.6 ml/min, and intake pump is controlled by the time relay, intake for sexual type water inlet at intermittence be that the intake pump pumping time is 5 minutes: 1-4 minute;
(2) membrane module A connection, flow set and micro-aeration: membrane module A is immersed in nitre nitrogen separator, its water outlet is connected successively with rising pipe, tensimeter and water outlet peristaltic pump, and be subject to the control of the time relay, open the water outlet peristaltic pump, the adjustment flow is 4-6.6ml/min, through the rising pipe water outlet.Simultaneously, aeration head is put into to nitre nitrogen separator membrane module A bottom and carry out aeration, adjust gas meter, control DO at 0.5-0.7mg/L;
(3) power supply connects and current settings: the two poles of the earth of electrode are connected with power supply respectively through wire, and by anode over against ultra-filtration membrane, negative electrode is over against anion-exchange membrane, opening power, adjusting to electric current is 0.05-0.25A, and remains unchanged;
(4) pumping time is set and membrane module A cleaning: the water outlet peristaltic pump, under the control of the time relay, water outlet is that water outlet peristaltic pump pumping time is 5 minutes for sexual type water outlet at intermittence: 1-4 minute, and synchronize intermittently Inlet and outlet water with intake pump, when tensimeter indication numerical value surpasses 15kpa, need be cleaned membrane module A;
After being cleaned, membrane module A can again put into operation.Whole process is flowed out from rising pipe by the nitre nitrogen of enrichment, and then has realized the enrichment of nitre nitrogen.
The utility model also provides a kind of membrane module A, it is characterized in that: this membrane module A forms by anion-exchange membrane, ultra-filtration membrane or microfiltration membrane with the back up pad of diversion trench and hole; Anion-exchange membrane and ultra-filtration membrane or microfiltration membrane are separately fixed at the two sides of back up pad.
The utility model principle is:
Membrane module A forms by anion-exchange membrane, ultra-filtration membrane with the back up pad of diversion trench and hole, ultra-filtration membrane in membrane module A can allow water molecules to see through to enter between ultra-filtration membrane and back up pad, the water molecules seen through enters between back up pad and anion-exchange membrane by the hole of back up pad, make the anion-exchange membrane both sides be the aqueous solution, because anion-exchange membrane has negatively charged ion (as NO
3 -) select perviousness, under impressed current not, can enter in membrane module A by the dialysis principle, under the impressed current effect, quickening NO in the unit time
3 -the quantity that enters membrane module A increases, and enters the ion of membrane module A, can enter into rapidly the water seen through from ultra-filtration membrane, form the nitre nitrogen concentrated solution of high density, under the suction function of peristaltic pump, nitre nitrogen concentrated solution is transferred to subsequent treatment process, thereby realize the enrichment of nitre nitrogen.
The utility model compared with prior art, has the following advantages and outstanding effect:
(1) nitre nitrogen enrichment in having realized water in single processing unit; Owing to adopting membrane module A, in water, suspended matter and macromolecular substance are all efficiently held back by membrane module A, and nitre nitrogen accumulation rate is 3%-68%, and then has realized the enrichment to nitre nitrogen by membrane module A.
(2) limitation in water treatment for electrodialysis and membrane reactor, developed immersion type membrane component A, and immersion type membrane component A not only can make water see through, and have negatively charged ion selection perviousness, but enrichment of N O
3 -, overcome electrodialysis can not be by the shortcoming of organism and ion isolation, has made up the weakness that membrane reactor can not the separation and concentration ion, and the immersion surrounding of membrane module A provides convenience for following practical engineering application.
(3) whole apparatus structure is simple, is convenient to the actually operating operation.
The accompanying drawing explanation:
Negatively charged ion enrichment system schematic diagram in a kind of water that Fig. 1 provides for the utility model.
Nitre nitrogen enriching method operation schematic diagram in a kind of water that Fig. 2 provides for the utility model.
A kind of membrane module A schematic diagram that Fig. 3 provides for the utility model.
The back up pad schematic diagram of a kind of membrane module A that Fig. 4 provides for the utility model.
In figure: 1-intake pump 2-water inlet pipe 3-nitre nitrogen separator 4-power supply 5-wire 6-electrode 7-aeration head 8-membrane module A 9-tensimeter 10-water outlet peristaltic pump 11-time relay 12-rising pipe 13-gas meter 14-air pump 15-gas circuit pipeline 16-back up pad 17-ultra-filtration membrane or microfiltration membrane 18-anion-exchange membrane 19-membrane module A water outlet 20-diversion trench 21-hole
Embodiment
Below in conjunction with accompanying drawing 1,2,3,4 and embodiment, explain detailedly, further to understand the utility model.
A kind of membrane module A 8(Fig. 3 of the present utility model, Fig. 4), by forming by anion-exchange membrane 18, ultra-filtration membrane or microfiltration membrane 17 with the back up pad 16 of diversion trench 20 and hole 21; Anion-exchange membrane 18 and ultra-filtration membrane or microfiltration membrane 17 are separately fixed at the two sides of back up pad 16.
In order to make experiment effect reach better, the anion-exchange membrane that the anion-exchange membrane 18 that the utility model adopts is ACS for the model that provides from Japanese astom, ultra-filtration membrane 17 is that 0.1 μ m, membrane flux are 18.75-20.83 L/m for the aperture provided from the auspicious clean spy in Nanjing
2.h ultra-filtration membrane.
In a kind of water provided by the utility model, negatively charged ion enrichment system (Fig. 1) comprises nitre nitrogen separator 3, is placed on membrane module A 8, aeration head 7 and electrode 6 in nitre nitrogen separator 3, intake pump 1, water inlet pipe 2, power supply 4, wire 5, tensimeter 9, water outlet peristaltic pump 10, the time relay 11, rising pipe 12, gas meter 13, air pump 14, gas circuit pipeline 15; The water outlet of membrane module A 8 is connected successively with rising pipe 12, tensimeter 9 and water outlet peristaltic pump 10, and is subject to the control of the time relay 11; Intake pump 1 is controlled by the time relay 11; Aeration head 7 is connected successively with gas circuit pipeline 15, gas meter 13 and air pump 14; Aeration head 7 is positioned at membrane module A 8 bottoms; The two poles of the earth of electrode 6 are connected with power supply 4 respectively through wire 5, adopt anode over against ultra-filtration membrane 17, and negative electrode is over against anion-exchange membrane 18; Intake pump 1 taps into water pipe 2, and the water inlet pipe end is positioned at nitre nitrogen separator 3, and near nitre nitrogen separator 3 bottoms.
Fig. 2 has meaned nitre nitrogen enriching apparatus running status in water, and concrete steps are:
(1) former water is introduced: former water is after intake pump 1 supercharging, take flow through water inlet pipe 2 enters in nitre nitrogen separator 3 as 4-6.6 ml/min, intake pump 1 is controlled by the time relay 11, intake for sexual type water inlet at intermittence be that the intake pump pumping time is 5 minutes: 1-4 minute.
(2) membrane module A connection, flow set and micro-aeration: membrane module A 8 is immersed in nitre nitrogen separator 3, its water outlet 19 is connected successively with rising pipe 12, tensimeter 9 and water outlet peristaltic pump 10, and be subject to the control of the time relay 11, open water outlet peristaltic pump 10, adjust discharge and be 4-6.6ml/min and constantly adjust rotating speed that to maintain water flow constant, through rising pipe 12 water outlets.Simultaneously, aeration head 7 is put into to nitre nitrogen separator 3 membrane module A 8 bottoms and carry out aeration, adjust gas meter 13, control DO at 0.5-0.7mg/L;
(3) power supply connects and current settings: the two poles of the earth of electrode 6 are connected with power supply 4 respectively through wire 5, and by anode over against ultra-filtration membrane 17, negative electrode is over against anion-exchange membrane 18, opening power 4, the adjustment electric current is 0.05-0.25 A, and remains unchanged.Ultra-filtration membrane 17 in membrane module A 8 can allow water molecules to see through to enter between ultra-filtration membrane 17 and back up pad 16, the water molecules seen through enters between back up pad 16 and anion-exchange membrane 18 by the hole 21 of back up pad 16, make anion-exchange membrane 18 both sides be the aqueous solution, because anion-exchange membrane 18 has negatively charged ion (as NO
3 -) select perviousness, under the impressed current effect, NO in the unit time
3 -the quantity that enters membrane module A 8 increases, and enters the ion of membrane module A 8, can enter into rapidly the water seen through from ultra-filtration membrane 17, forms the nitre nitrogen concentrated solution of high density, and then makes nitre nitrogen obtain enrichment.
(4) pumping time is set and membrane module A cleaning: water outlet peristaltic pump 10, under the control of the time relay 11, water outlet is that water outlet peristaltic pump pumping time is 5 minutes for sexual type water outlet at intermittence: 1-4 minute, and synchronize intermittently Inlet and outlet water with intake pump 1, when tensimeter 9 indication numerical value surpass 15kpa, need be cleaned membrane module A 8.
(5) again put into operation: after membrane module A 8 is cleaned, can again put into operation.Whole process is flowed out from rising pipe 12 by the nitre nitrogen of enrichment, and then has realized the enrichment of nitre nitrogen.
In following examples, DO all is controlled at 0.5-0.7mg/L and gets final product, DO this scope on experimental result impact can ignore.
Result:
When example 1 is water distribution when former water, its main water-quality guideline is: NO
3 --N=86.38 mg/L; Operational condition is: intake pump, water outlet peristaltic pump pumping time are 5 minutes: 4 minutes flooding velocity are 6.6 ml/min, membrane module A water flow is 6.6 ml/min, when electric current is 0.25A, after nitre nitrogen enriching apparatus, the leading indicator of film water outlet can reach: NO
3 --N
-=139.03 mg/L, nitre nitrogen accumulation rate is 65.96%.
When example 2 is water distribution when former water, its main water-quality guideline is: NO
3 --N=82.1 mg/L; Operational condition is: intake pump, water outlet peristaltic pump pumping time are 5 minutes: 4 minutes, flooding velocity is 4 ml/min, and membrane module A water flow is 4 ml/min, when electric current is 0.25A, after nitre nitrogen enriching apparatus, the leading indicator of film water outlet can reach: NO
3 --N=138.61 mg/L, nitre nitrogen accumulation rate is 68.82%.
When example 3 is water distribution when former water, its main water-quality guideline is: NO
3 --N=90.33 mg/L; Operational condition is: intake pump, water outlet peristaltic pump pumping time are 5 minutes: 1 minute, flooding velocity is 4 ml/min, and membrane module A water flow is 4 ml/min, when electric current is 0.25A, after nitre nitrogen enriching apparatus, the leading indicator of film water outlet can reach: NO
3 --N=130.99 mg/L, nitre nitrogen accumulation rate is 45.01%.
When example 4 is water distribution when former water, its main water-quality guideline is: NO
3 --N=90.44 mg/L; Operational condition is: intake pump, water outlet peristaltic pump pumping time are 5 minutes: 4 minutes, flooding velocity is 4 ml/min, and membrane module A water flow is 4 ml/min, when electric current is 0.05A, after nitre nitrogen enriching apparatus, the leading indicator of film water outlet can reach: NO
3 --N=93.57 mg/L, nitre nitrogen accumulation rate is 3.46%.
Claims (1)
1. negatively charged ion enrichment system in a water, it is characterized in that: this device comprises uncovered nitre nitrogen separator, is placed on membrane module A, aeration head and electrode in nitre nitrogen separator, air pump, gas meter, gas circuit pipeline, the water outlet peristaltic pump, tensimeter, intake pump, water inlet pipe, rising pipe, power supply, wire, the time relay; Membrane module A water outlet is connected successively with rising pipe, tensimeter and water outlet peristaltic pump, and is subject to the control of the time relay; Intake pump is controlled by the time relay; Aeration head is connected successively with gas circuit pipeline, gas meter and air pump; Aeration head is positioned at membrane module A bottom; The two poles of the earth of electrode are connected with power supply respectively through wire, and the two poles of the earth are placed on membrane module A both sides; Intake pump taps into water pipe, and the water inlet pipe end is positioned at nitre nitrogen separator, and near nitre nitrogen separator bottom; Membrane module A forms by one of anion-exchange membrane, ultra-filtration membrane or microfiltration membrane with the back up pad of diversion trench and hole, and one of anion-exchange membrane, ultra-filtration membrane or microfiltration membrane are separately positioned on and support version both sides; Electrode adopts tabular or cylindric Graphite Electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203900807U CN203333353U (en) | 2013-06-30 | 2013-06-30 | System for enriching anions in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203900807U CN203333353U (en) | 2013-06-30 | 2013-06-30 | System for enriching anions in water |
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| Publication Number | Publication Date |
|---|---|
| CN203333353U true CN203333353U (en) | 2013-12-11 |
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| CN2013203900807U Expired - Fee Related CN203333353U (en) | 2013-06-30 | 2013-06-30 | System for enriching anions in water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395868A (en) * | 2013-06-29 | 2013-11-20 | 北京工业大学 | Method and apparatus for enrichment of nitrate-nitrogen in water |
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2013
- 2013-06-30 CN CN2013203900807U patent/CN203333353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395868A (en) * | 2013-06-29 | 2013-11-20 | 北京工业大学 | Method and apparatus for enrichment of nitrate-nitrogen in water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: 100176 9th floor, block T2, Han's Square, yard 2, Ronghua South Road, Yizhuang Economic and Technological Development Zone, Daxing District, Beijing Patentee after: BEIJING BEIHUA ZHONGQING ENVIRONMENTAL ENGINEERING TECHNOLOGY CO.,LTD. Address before: 212009 room 2501, block a, twin towers, science and technology new town, No. 468, Dingmao wisdom Avenue, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG QINGSHUI ENVIRONMENTAL SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |