CN102603100A - Separated type waterpower recirculation reactor-based system and method for removing heavy metal ions in water - Google Patents
Separated type waterpower recirculation reactor-based system and method for removing heavy metal ions in water Download PDFInfo
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- CN102603100A CN102603100A CN2012100953840A CN201210095384A CN102603100A CN 102603100 A CN102603100 A CN 102603100A CN 2012100953840 A CN2012100953840 A CN 2012100953840A CN 201210095384 A CN201210095384 A CN 201210095384A CN 102603100 A CN102603100 A CN 102603100A
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Abstract
The invention discloses a separated type waterpower recirculation reactor-based system for removing heavy metal ions in water and a separated type waterpower recirculation reactor-based method for removing heavy metal ions in water, belonging to the field of water treatment. The system comprises a resin cleaning tank, a resin regenerating tank and a reverse osmosis system and also comprises a separated type waterpower recirculation reactor, wherein the separated type waterpower recirculation reactor is provided with a sedimentation area and an adsorption area, which are independent, the sedimentation area is connected with the resin regenerating tank, the resin regenerating tank is connected with the resin cleaning tank and the reverse osmosis system, and the resin cleaning tank is connected with the adsorption area of the separated type waterpower recirculation reactor. The method comprises the steps of water feeding, adsorption of a main adsorption area, adsorption of an auxiliary adsorption area, resin sedimentation of the sedimentation area, desorption, regeneration, desorption liquid recycling and disposal. According to the invention, the resin smashing caused by stirring paddles or the influences on the adsorption of the resin caused by the bubbles generated during aeration process can be avoided, the adsorption area and the sedimentation area which are segmented by the heavy metal ions can be removed rapidly, so that enough adsorption and separation time can be provided for the resin adsorption, and the adsorption effect of magnetic resin and the effective separation of the magnetic resin in yielding water can be guaranteed.
Description
Technical field
The present invention relates to
OneHeavy metal ion is removed Apparatus and method for fast in kind of the water, more specifically relates to a kind ofly to remove system and method fast based on heavy metal ion in the water of acrylic acid series magnetic cation resin and split type waterpower recirculation reactor.
Background technology
The removal method of heavy metal ion mainly contains active carbon adsorption, chemical precipitation method and electrochemical process in the water at present; There is following problem in these methods in application process: 1) Coagulation Method has removal effect preferably to the heavy metal ion of high density; But the clearance for the heavy metal ion of lower concentration in the water is lower, and can produce a large amount of body refuses, is difficult for disposing [Lertchai Charerntanyarak; Heavy metals removal by chemical coagulation and precipitation; Water Science and Technology, 1999,39 (10): 135-138.]; 2) activated carbon is as sorbing material commonly used in the burst water pollution accident; It all has certain absorption property to organism and heavy metal ion; Yet activated carbon exists in emergency disposal heavy metal contamination process, and s-adsorption is low, adsorption rate slow, be difficult for the regenerated defective; Use [R. Baccar, J. Bouzid, M. Feki in the unsuitable big yield emergency disposal engineering; A. Montiel; Preparation of activated carbon from Tunisian olive-waste cakes and its application for adsorption of heavy metal ions, J. Hazard. Mate. 2009,162 (2 – 3): 1522-1529.].
The mainstream technology that the magnetic resin technology is handled as tail water/drinking water deep is carried out positive popularization at present just at home, but in the emergency disposal process, has following problem:
1) in the pollution incident of actual burst water; The water pollution incident that heavy metal cations such as cupric ion, mn ion, cadmium ion, lead cause accounts for more than 50%; But mostly used magnetic resin is magnetic anion exchange resin at present, and mostly the target compound that its absorption is removed is solvability organic and negatively charged ion [Jutamas Kaewsuk, Gyu Tae Seo; Verification of NOM removal in MIEX-NF system for advanced water treatment; Separation and Purification Technology, 2011,80 (1): 11-19];
2) mostly existing magnetic resin adsorption unit (built-in anionite-exchange resin) is that [Liu becomes for Chen Wei, Han Zhigang for integral type waterpower recirculation reactor, separate mechanical stirred reactor, split type aeration agitation reactor drum; Xie Chengta, Zhou Hua, the progress of MIEX technology control disinfection by-product of drinking water; China's water supply and drainage, 2009,25 (6): 14-18.]; Like one Chinese patent application number: 200820237941; The magnetic resin adsorptive reactor is not enough below the disclosed reactor drum of patent document, these reactor drums exist in actual application:
Integral type waterpower recirculation reactor can't be regulated and control the absorption-separation-settling time of magnetic resin; Not only be difficult to adapt to the water yield, change of water quality; And the reaction zone of reactor drum and negative area maximum volume are restricted; Single reactor for treatment amount maximum can not surpass 20,000 cubes/day, is difficult to be useful in Large Water Works;
Separate mechanical whip attachment-separate reactor not only causes magnetic resin broken easily, causes the resin turnover rate to increase, and mechanical stirring device needs maintenance with electrical equipment;
The bubble that split type aeration agitation absorption-separate reactor produces in aeration process is wrapped on the magnetic resin particle, can hinder the mass transfer process between resin and the adsorbate, influences adsorption effect.
The quick absorption removal method of heavy metal ion cation exchange resin processes commonly used mainly is in adsorption column, to carry out at present, and not only operating equipment is complicated for this method, working cost is high, and processing speed is slower.Put into that application need solves following technical problem in traditional integral type waterpower recirculation reactor if will have non magnetic Zeo-karb now: 1) traditional non magnetic Zeo-karb particle is big; Therefore be unfavorable in the mixing contact process in the waterpower recirculation reactor; The mass transfer process of heavy metal ion on resin, so adsorption rate and adsorption efficiency are lower; 2) traditional non magnetic Zeo-karb does not have magnetic, density little, therefore after absorption with water movement free settling not, it is serious to cause resin to run off.
And simply put into " integral type waterpower recirculation reactor " from exchange resin with magnetic is positive; Like one Chinese patent application number: 201110123992.3; A kind of drinking water deep treatment system and method based on the waterpower recirculation reactor; File discloses device and has utilized the waterpower circulation to realize the thorough mixing of resin and water; But " the integral type waterpower recirculation reactor " in this patent can't be regulated and control the absorption-separation-settling time of magnetic resin, is difficult to adapt to the water yield, change of water quality, and be mainly reflected in: 1) reaction zone of this reactor drum and negative area maximum volume are restricted; Single reactor for treatment amount maximum can not surpass 20,000 cubes/day, therefore not too is useful in Large Water Works; 2) negative area of this reactor drum and adsorption zone are not done separation, thus resin absorption-settling time can't regulate and control, in case water quality, the water yield change, resin absorption deficiency of time, the inadequate situation of sedimentation will appear.And in the pollution incident of actual heavy metal water; Concentration of heavy metal ion can be along with the variation generation obvious variation of pollution zone migration and hydrochemistry condition; If can not regulate and control, can directly influence actual processing effect to the absorption-separation-settling time of reactor drum.
Summary of the invention
The technical problem that invention will solve
To the bigger characteristics of water quality in the emergency disposal process, water yield fluctuation; Need develop the novel reactor and the treatment system of difference integral type waterpower recirculation reactor, separate mechanical stirred reactor and split type aeration agitation reactor drum; Utilize the waterpower circulation to realize that magnetic resin mixes with water; The adsorption zone of augmenting response device and negative area volume are according to the actual requirements rationally controlled resin absorption time and settlement separate time again, can be applied to problems such as Large Water Works; The invention provides and a kind ofly remove system and method fast based on heavy metal ion in the water of split type waterpower recirculation reactor; Utilizing waterpower circulation to realize magnetic resin and well-mixed while of water, can magnetic resin adsorbed-separate-the sedimentation separation carries out in the different zones of reactor drum, effectively removes heavy metal cation in the water.
Technical scheme
A kind ofly remove system fast, comprise resin purge tank, resin regeneration jar and reverse osmosis system, also comprise split type waterpower recirculation reactor based on heavy metal ion in the water of split type waterpower recirculation reactor; Wherein split type waterpower recirculation reactor has independently negative area and adsorption zone; The negative area is connected with the resin regeneration jar; The resin regeneration jar is connected with reverse osmosis system with the resin purge tank respectively, and the resin purge tank is connected with split type waterpower recirculation reactor adsorption zone.
The bottom is the continuous effluent/pattern of intaking continuously for the split type waterpower recirculation reactor operational mode of taper; Comprise that waterpower circulatory pool and settling bowl connect to form; Said waterpower circulatory pool comprises water inlet pipe, cloth water spouting nozzle, water inlet bucket and baffler; Water inlet pipe connects the cloth water spouting nozzle, waterpower circulatory pool intermediate arrangement water inlet bucket, and the top of water inlet bucket is provided with baffler; Said settling bowl comprises magnetic resin relief outlet, inclined tube, overflow cofferdam mouth and magnetic sheet; Wherein the settling bowl bottom is provided with the magnetic resin relief outlet; Inclined tube is installed in magnetic resin relief outlet top, and settling bowl top is equipped with overflow cofferdam mouth, and overflow cofferdam mouth is equipped with magnetic sheet.The cloth water spouting nozzle is along the three-dimensional water distribution of water inlet bucket tangential direction.
The adsorption zone of said split type waterpower recirculation reactor, the adsorption zone bottom is taper, adsorption zone bottom angle is the 10-45 degree, and the water inlet bucket in the adsorption zone is divided into main adsorption zone and secondary adsorption zone with adsorption zone.
The negative area of said split type waterpower recirculation reactor is divided into negative area and clear water zone through the inclined tube in the settling bowl with settling bowl, and bottom, negative area angle is the 15-50 degree.
A kind ofly remove method fast, the steps include: based on heavy metal ion in the water of split type waterpower recirculation reactor
Step 1, water inlet: the water of need handling through the cloth water spouting nozzle along the water inlet bucket (highly: diameter=1.5-2:1) the tangential direction water inlet of wall, water intake mode is the three-dimensional water inlet, forms the water inlet current;
The absorption of step 2, main adsorption zone: the current that water inlet produces in the step 1 magnetic resin of carrying under one's arms gets into the main adsorption zone of split type waterpower recirculation reactor, current and magnetic resin thorough mixing, absorption, the volume V of wherein main adsorption zone and magnetic resin
Main adsorption zone: V
Magnetic resin=200-400:1;
The secondary adsorption zone absorption of step 3.: receive the effect of baffler, up eddy flow changes direction, becomes descending current; Receive descending flow action; Resin is back to the adsorption zone bottom, and wherein the magnetic resin of volume percent 80%-95% is along with current get into the water inlet bucket, with the absorption of water inlet hybrid reaction; Realize the circulation of resin in reactor drum, the resin of residual volume per-cent 5%-20% gets into the negative area;
The sedimentation of step 4. inclined tube: carry under one's arms a small amount of magnetic resin of partial reflux current gets into the negative area, gets into the settling bowl bottom of reactor drum through the inclined tube sedimentation, and clear water flows out from the overflow weir of clear water zone;
Step 5. magnetic resin regeneration: under the room temperature, the magnetic resin of the settling bowl of waterpower recirculation reactor bottom is delivered in the resin regeneration jar (aspect ratio is 1:1) through peristaltic pump, with desorption liquid (, V
Magnetic resin: V
Desorption liquid=1:1-1.5) desorption, the built-in whisking appliance of resin regeneration jar (120r/min), intermittent type stirs (stirring static 5-10 minute 10-20 minute), and the magnetic resin at the bottom of being deposited in jar is delivered to purge tank through peristaltic pump;
Step 6. magnetic resin cleans: with clear water the magnetic resin in the purge tank is cleaned; The built-in whisking appliance of purge tank (120r/min); Intermittent type stirs and (stirred 15 minutes; Static 5 minutes), the magnetic resin at the bottom of being deposited in jar is delivered in the adsorption zone cloth water spray pipe of split type waterpower recirculation reactor through peristaltic pump;
The reuse of step 7. desorption liquid: the magnetic resin desorption liquid gets into reverse osmosis system in the resin regeneration jar, and the r-o-filtrate is back to the regenerated liquid Preparation tank, is used for the preparation of desorption liquid, and reverse osmosis concentrated liquid is delivered to municipal wastewater treatment plant through blow-off line and disposed.
The cloth water spouting nozzle is a three-dimensional cloth water spouting nozzle in the said step 1, and water intake mode is for intaking along the tangential direction three-dimensional of advancing bucket wall.
Magnetic resin among the said step 2-6 is the acrylic acid series magnetic cation exchange resin.
Desorption liquid in the said step 5 and 7 is that mass percent is hydrochloric acid, nitric acid, the sulphuric acid soln of 2-8%, and desorption liquid concentrates with reverse osmosis membrane, reverse osmosis membrane aperture 0.5-10nm, pressure 0.6-2 MPa.
Beneficial effect
1) makes full use of hydrocyclone and realize mixing of resin and water, avoid stirring arm to smash resin or aeration bubble disadvantageous effect the resin absorption generation.
2) can remove fast copper in the water, nickel, lead, at a distance from etc. heavy metal ion, stable effluent quality.
3) can adapt to the fluctuation of water quality, the water yield, sectional adsorption zone, negative area are that resin absorption provides enough absorption, disengaging times, guarantee effective separation of magnetic resin in magnetic resin adsorption effect and the water outlet.
4) relative one Chinese patent application number: 201110123992.3; A kind of drinking water deep treatment system and method based on the waterpower recirculation reactor; The waterpower recirculation reactor has independently adsorption zone and negative area among the present invention; Resin mixes with water, the backflow of resin and resin get into the negative area sedimentation and all rely on waterpower, does not need extra PWR PLT and pipe-line transportation.
Description of drawings
Fig. 1 removes the system architecture synoptic diagram fast based on heavy metal ion in the water of split type waterpower recirculation reactor;
The split type waterpower recirculation reactor of Fig. 2 structural representation;
Fig. 3 removes system flowchart fast based on heavy metal ion in the water of split type waterpower recirculation reactor.
Be labeled as among the figure: 1 waterpower circulatory pool; 2 settling bowls; 3 resin regeneration jars; 4 resin purge tanks; 5 reverse osmosis systems; 6 cloth water spouting nozzles; 7 water inlet buckets; 8 main adsorption zones; 9,9 ' the secondary adsorption zone; 10 bafflers; 11 magnetic sheets; 12 overflow cofferdam mouths; 13 inclined tubes; 14 settling bowls bottom; 15 negative areas; 16 clear water zones; 17 up eddy flows; 18,18
,Descending current; 19 magnetic resin relief outlets; 20 water inlet pipes; Bottom, A negative area angle; B adsorption zone bottom angle.
Embodiment
Influent quality index such as table 1 among the embodiment:
Table 1 influent quality
| ? | Cupric ion (mg/L) | Lead ion (mg/L) | Separaant (mg/L) | Mn ion (mg/L) |
| The water hygiene safety standards | 1.0 | 0.01 | 0.005 | 0.1 |
| |
15 | 2.4 | 1.5 | 12.6 |
Embodiment 1:
As illustrated in fig. 1 and 2, remove system fast based on heavy metal ion in the water of split type waterpower recirculation reactor, comprise resin purge tank 4, resin regeneration jar 3 and reverse osmosis system 5, also comprise split type waterpower recirculation reactor; Wherein split type waterpower recirculation reactor has independently negative area 15 and adsorption zone; Negative area 15 is connected with resin regeneration jar 3; Resin regeneration jar 3 is connected with reverse osmosis system 5 with resin purge tank 4 respectively, and resin purge tank 4 is connected with split type waterpower recirculation reactor adsorption zone.The bottom is the continuous effluent/pattern of intaking continuously for the split type waterpower recirculation reactor operational mode of taper; Comprise that waterpower circulatory pool 1 and settling bowl 2 connect to form; Said waterpower circulatory pool 1 comprises water inlet pipe 20, cloth water spouting nozzle 6, water inlet bucket 7 and baffler 10; Water inlet pipe 20 connects cloth water spouting nozzle 6, waterpower circulatory pool 1 intermediate arrangement water inlet bucket 7, and the top of water inlet bucket 7 is provided with baffler 10; Said settling bowl 2 comprises magnetic resin relief outlet 19, inclined tube 13, overflow cofferdam mouth 12 and magnetic sheet 11; Wherein settling bowl 2 bottoms are provided with magnetic resin relief outlet 19; Inclined tube 13 is installed in magnetic resin relief outlet 19 tops; Settling bowl 1 top is equipped with overflow cofferdam mouth 12, and overflow cofferdam mouth 12 is equipped with magnetic sheet 11.Cloth water spouting nozzle 6 is along the three-dimensional water distribution of water inlet bucket 7 tangential directions.Water inlet bucket 7 (highly: diameter=1.5:1).0.4 meter of split type waterpower recirculation reactor diameter is high 0.3 meter; 0.6 meter of negative area 15 length, wide 0.4 meter, high 0.5 meter; Long 0.05 meter of inclined tube, the cross section is the square of 0.015 meter of the length of side, the pitch angle is 30 degree.
The adsorption zone of said split type waterpower recirculation reactor, the adsorption zone bottom is taper, adsorption zone bottom included angle B is 10 degree, and the water inlet bucket 7 in the adsorption zone is divided into main adsorption zone 8 and secondary adsorption zone 9,9 ' with adsorption zone.
The negative area 15 of said split type waterpower recirculation reactor is divided into negative area 15 and clear water zone 16 through the inclined tube 13 in the settling bowl 2 with settling bowl 2, and settling bowl bottom 14 included angle A are 15 degree, and magnetic sheet 11 and overflow cofferdam mouth 12 are arranged at clear water zone 16 tops.
As shown in Figure 3, remove method fast based on heavy metal ion in the water of split type waterpower recirculation reactor, the steps include:
Step 1: 80mL magnetic acrylic acid series resin cation(R.C.) is packed in the split type waterpower recirculation reactor; The water that needs to handle is through the tangential direction water inlet of cloth water spouting nozzle 6 along water inlet bucket 7 walls; Water intake mode is the three-dimensional water inlet; Form the water inlet current, flooding velocity 50L/h, water intake mode are water inlet/water outlet continuously.
Step 2: the current that water inlet produces in the step 1 magnetic resin of carrying under one's arms gets into the main adsorption zone of split type waterpower recirculation reactor, current and magnetic resin thorough mixing, absorption, the volume V of wherein main adsorption zone and magnetic resin
Main adsorption zone: V
Magnetic resin=200-400:1.
Step 3: receive the effect of baffler 10, up eddy flow 17 as shown in Figure 2 changes direction, becomes descending current 18,18
,, receiving descending flow action, resin is back to the adsorption zone bottom; Wherein the magnetic resin of volume percent 80%-95% is along with current get into water inlet bucket 7; With the absorption of water inlet hybrid reaction, realize the circulation of resin in reactor drum, the resin of residual volume per-cent 5%-20% gets into negative area 15.
Step 4: carry under one's arms a small amount of magnetic resin of partial reflux current gets into the negative area, gets into reactor bottom through the inclined tube sedimentation, and clear water flows out from the overflow weir of clear water zone 16.
Step 5: under the room temperature, the magnetic resin of waterpower recirculation reactor bottom is in flow volume delivery to the resin regeneration jar (aspect ratio be 1:1, diameter 0.15 meter high 0.15 meter) of peristaltic pump with 10 mL/h, and using desorption liquid is 6% hydrochloric acid soln (V as mass percent
Magnetic resin: V
Desorption liquid=1:1) desorption, resin regeneration jar 3 built-in whisking appliances (120r/min), intermittent type stirs (stirring static 10 minutes 20 minutes), and the magnetic anion exchange resin at the bottom of being deposited in jar is delivered to resin purge tank 4 through peristaltic pump.
Effluent quality such as table 2:
Table 2 effluent quality
| ? | Cupric ion (mg/L) | Lead ion (mg/L) | Separaant (mg/L) | Mn ion (mg/L) |
| The water hygiene safety standards | 1.0 | 0.01 | 0.005 | 0.1 |
| |
15 | 2.4 | 1.5 | 12.6 |
| Effluent quality | 0.22 | 0.003 | 0.002 | 0.05 |
Effluent quality meets the water hygiene safety standards.
Step 6: magnetic resin cleans: with clear water the magnetic resin in the resin purge tank 4 is cleaned; Resin purge tank 4 built-in whisking appliances (120r/min); Intermittent type stirs (stirring static 5 minutes 15 minutes), and the resin after the cleaning recovers adsorptive power; Magnetic resin at the bottom of being deposited in jar is delivered in the cloth water spray pipe 6 of reactor drum scavenging solution reuse to desorption jar through peristaltic pump;
Step 7: the magnetic resin desorption liquid gets into reverse osmosis system 5 in the resin regeneration jar 3, and the r-o-filtrate is back to the regenerated liquid Preparation tank, is used for the preparation of desorption liquid, and reverse osmosis concentrated liquid is delivered to municipal wastewater treatment plant through blow-off line and disposed.
Magnetic resin among the step 2-6 is the acrylic acid series magnetic cation exchange resin; Select one Chinese patent application numbers 201010500161.9; The application people is a Nanjing University; Denomination of invention is magnetic acrylic acid series Weak-acid cation exchange microballoon resin and compound method thereof, the magnetic acrylic acid series Weak-acid cation exchange microballoon resin of production.
Desorption liquid concentrates with reverse osmosis membrane in the step 7, reverse osmosis membrane aperture 0.5-10nm, pressure 0.6-2 MPa.
Embodiment 2:
Constant with embodiment 1 system architecture and working method, but the bucket of will intaking (highly: diameter=2:1), adsorption zone bottom included angle B is 30 degree, 15 bottoms, negative area, 14 included angle A are that the flooding velocity of 30 degree steps 1 transfers to 30L/h, V in the step 2
Main adsorption zone: V
Magnetic resin=200:1, using desorption liquid in the step 5 is 2% salpeter solution (V as mass percent
Magnetic resin: V
Desorption liquid=1:1.2) desorption, resin regeneration jar 3 built-in whisking appliances (120r/min), intermittent type stirs (stirring static 5 minutes 10 minutes), and effluent quality is seen table 3:
Table 3 effluent quality
| ? | Cupric ion (mg/L) | Lead ion (mg/L) | Separaant (mg/L) | Mn ion (mg/L) |
| The water hygiene safety standards | 1.0 | 0.01 | 0.005 | 0.1 |
| |
15 | 2.4 | 1.5 | 12.6 |
| Effluent quality | 0.18 | 0.002 | 0.002 | 0.03 |
Effluent quality meets the water hygiene safety standards.
Embodiment 3:
Constant with embodiment 1 system architecture and working method, but the bucket of will intaking (highly: diameter=1.8:1), adsorption zone bottom included angle B is 45 degree, and bottom, negative area 14 included angle A are 50 degree, and the magnetic resin dosage of step 1 increases to 100mL, V in the step 2
Main adsorption zone: V
Magnetic resin=400:1, using acid solution in the step 5 is 8% sulphuric acid soln (V as mass percent
Magnetic resin: V
Desorption liquid=1:1.2) desorption, resin regeneration jar 3 built-in whisking appliances (120r/min), intermittent type stirs (stirring static 10 minutes 20 minutes), and effluent quality is seen table 3:
Effluent quality is seen table 4:
Table 4 effluent quality
| ? | Cupric ion (mg/L) | Lead ion (mg/L) | Separaant (mg/L) | Mn ion (mg/L) |
| The water hygiene safety standards | 1.0 | 0.01 | 0.005 | 0.1 |
| |
15 | 2.4 | 1.5 | 12.6 |
| Effluent quality | 0.19 | 0.002 | 0.002 | 0.04 |
Effluent quality meets the water hygiene safety standards.
Embodiment 4:
Constant with embodiment 1 system architecture and working method, V in the step 2
Main adsorption zone: V
Magnetic resin=300:1, using desorption liquid in the step 5 is 2% salpeter solution (V as mass percent
Magnetic resin: V
Desorption liquid=1:1) desorption, resin regeneration jar 3 built-in whisking appliances (120r/min), it is constant that intermittent type stirs (stirring static 7 minutes 15 minutes) other operational condition, and its result of implementation and embodiment 1 are basic identical.
Claims (8)
- A kind of based on the water of split type waterpower recirculation reactor in heavy metal ion remove method fast, the steps include:Step 1, water inlet: the water that needs to handle is intake along the tangential direction of advancing bucket wall through the cloth water spouting nozzle, and water intake mode is the three-dimensional water inlet, forms up current;The absorption of step 2, main adsorption zone: the current that water inlet produces in the step 1 magnetic resin of carrying under one's arms gets into the main adsorption zone of split type waterpower recirculation reactor, current and magnetic resin thorough mixing, absorption;Step 3, the absorption of secondary adsorption zone, backflow: receive the effect of baffler; Up current change direction, become descending current, receive descending flow action; Magnetic resin is back to the adsorption zone bottom; Wherein the magnetic resin of volume percent 80%-95% is along with current get into the water inlet bucket, and with the absorption of water inlet hybrid reaction, the resin of residual volume per-cent 5%-20% gets into the negative area;Step 4, sedimentation: magnetic resin gets into the settling bowl bottom in the negative area through the inclined tube sedimentation, and clear water flows out from the overflow weir of clear water zone;Step 5, magnetic resin regeneration: under the room temperature; The magnetic resin of settling bowl bottom is delivered in the resin regeneration jar through peristaltic pump; Doubly regenerate with 1.0-1.5 to the desorption liquid of regeneration magnetic resin volume; The built-in whisking appliance of resin regeneration jar, intermittent type stir, and the magnetic resin at the bottom of being deposited in jar is delivered to purge tank through peristaltic pump;Step 6, clean: with clear water the magnetic resin in the purge tank is cleaned, the built-in whisking appliance of purge tank, intermittent type stirs, and the magnetic resin at the bottom of being deposited in jar is delivered in the adsorption zone cloth water spray pipe of split type waterpower recirculation reactor through peristaltic pump;Step 7, desorption liquid reuse: the magnetic resin desorption liquid gets into reverse osmosis system in the resin regeneration jar, and the reverse osmosis membrane filtrate is back to the regenerated liquid Preparation tank, and reverse osmosis concentrated liquid is delivered to sewage work and disposed.
- 2. according to claim 1ly remove method fast based on heavy metal ion in the water of split type waterpower recirculation reactor, it is characterized in that: the cloth water spouting nozzle is a three-dimensional cloth water spouting nozzle in the said step 1.
- 3. according to claim 2ly remove method fast based on heavy metal ion in the water of split type waterpower recirculation reactor, it is characterized in that: the magnetic resin among the said step 2-6 is the acrylic acid series magnetic cation exchange resin.
- 4. according to claim 3ly remove method fast, it is characterized in that: the volume ratio V of main adsorption zone and magnetic resin in the said step 2 based on heavy metal ion in the water of split type waterpower recirculation reactor Main adsorption zone: V Magnetic resin=200-400:1, the desorption liquid in the step 5 are that mass percent is hydrochloric acid, nitric acid or the sulphuric acid soln of 2-8%; Desorption liquid concentrates with reverse osmosis membrane in the step 7, reverse osmosis membrane aperture 0.5-10nm, pressure 0.6-2 MPa.
- 5. remove system fast based on heavy metal ion in the water of split type waterpower recirculation reactor for one kind, comprise resin purge tank, resin regeneration jar and reverse osmosis system, it is characterized in that also comprising split type waterpower recirculation reactor; Wherein split type waterpower recirculation reactor has independently negative area and adsorption zone; The negative area is connected with the resin regeneration jar; The resin regeneration jar is connected with reverse osmosis system with the resin purge tank respectively, and the resin purge tank is connected with split type waterpower recirculation reactor adsorption zone.
- 6. according to claim 5ly remove system fast based on heavy metal ion in the water of split type waterpower recirculation reactor; It is characterized in that: said split type waterpower recirculation reactor comprises that waterpower circulatory pool and settling bowl connect to form; Said waterpower circulatory pool comprises water inlet pipe, cloth water spouting nozzle, water inlet bucket and baffler; Water inlet pipe connects the cloth water spouting nozzle, waterpower circulatory pool intermediate arrangement water inlet bucket, and the top of water inlet bucket is provided with baffler; Said settling bowl comprises magnetic resin relief outlet, inclined tube, overflow cofferdam mouth and magnetic sheet; Wherein the settling bowl bottom is provided with the magnetic resin relief outlet; Inclined tube is installed in magnetic resin relief outlet top, and settling bowl top is equipped with overflow cofferdam mouth, and overflow cofferdam mouth is equipped with magnetic sheet.
- 7. describedly remove system fast according to claim 5 or 6 based on heavy metal ion in the water of split type waterpower recirculation reactor; It is characterized in that: the adsorption zone bottom of said split type waterpower recirculation reactor is taper; Adsorption zone bottom angle is the 10-45 degree, and the water inlet bucket in the adsorption zone is divided into main adsorption zone and secondary adsorption zone with adsorption zone.
- 8. according to claim 7ly remove system fast based on heavy metal ion in the water of split type waterpower recirculation reactor; It is characterized in that: the negative area of said split type waterpower recirculation reactor; Through the inclined tube in the settling bowl settling bowl is divided into negative area and clear water zone, bottom, negative area angle is the 15-50 degree.
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| CN103408102A (en) * | 2013-08-14 | 2013-11-27 | 南京大学 | Ion exchange resin regeneration method reducing desorbed liquid |
| CN103553173A (en) * | 2013-11-11 | 2014-02-05 | 华东理工大学 | Method and device for removing heavy metal ions from wastewater through rotational flow adsorption |
| CN109019750A (en) * | 2018-10-09 | 2018-12-18 | 江苏神洲环境工程有限公司 | A kind of magnetic resin purifier |
| WO2019095629A1 (en) * | 2017-11-17 | 2019-05-23 | 南京大学 | Method for promoting denitrification through magnetic resin to remove nitrate nitrogen from water |
| CN114249484A (en) * | 2021-12-22 | 2022-03-29 | 南京环保产业创新中心有限公司 | Magnetic resin wastewater purification device and method |
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