CN103611515A - Multistage adsorption pool for biological enhanced advanced treatment of coal chemical waste water - Google Patents
Multistage adsorption pool for biological enhanced advanced treatment of coal chemical waste water Download PDFInfo
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- CN103611515A CN103611515A CN201310686428.1A CN201310686428A CN103611515A CN 103611515 A CN103611515 A CN 103611515A CN 201310686428 A CN201310686428 A CN 201310686428A CN 103611515 A CN103611515 A CN 103611515A
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Abstract
The invention discloses a multistage adsorption pool for the biological enhanced advanced treatment of coal chemical waste water. The multistage adsorption pool consists of a primary baffle plate, an adsorbent inlet, a secondary baffle plate, a water distribution plate, a screen mesh, a water outlet, an adsorbent outlet, a water inlet, a multifunctional adsorbent and a reactor main body, wherein the primary baffle plate, the secondary baffle plate, the water distribution plate and the multifunctional adsorbent are arranged inside the reactor main body, the primary baffle plate and the secondary baffle plate are tightly connected with the reactor main body, a space is formed at the lower part of the water distribution plate, and the multifunctional adsorbent can be freely filled between the baffle plates; the adsorbent inlet is formed in the top of the reactor main body, and the position of the adsorbent inlet is associated to the stage number of the adsorption pool; both the adsorbent outlet and the water inlet are formed in the bottom of the reactor main body; the screen mesh is installed on the wall of the reactor main body, and the water outlet is formed in the outer side of the screen mesh. The multistage adsorption pool has the beneficial effects that by adopting an adsorption-regeneration fluidized bed for the advanced treatment of the coal chemical waste water, the efficiency is high, the cost is low, the simplicity in operation can be realized.
Description
Technical field
The invention belongs to the processing technology field of coal chemical industrial waste water, be specifically related to the multistage adsorption tank for biological reinforced advanced treating coal chemical industrial waste water.
Background technology
Coal chemical industrial waste water has that complicated, the smelly look of taste are turbid, organic matter and salt concentration is high, strong basicity, be difficult to the features such as biodegradation.In coal chemical industrial waste water except containing the tens of kinds of inorganic matters such as ammonia nitrogen, rhodanide, sulfide, cyanide, also contain the multiple organic compound such as heterocyclic compound, pyridine, carbazole, biphenyl of phenols, monocycle and polycyclc aromatic compound, nitrogenous, sulphur, oxygen, serious to water body-water plant-aquatic animal and human health damage.The technology of current domestic processing coal chemical industrial waste water mainly adopts biochemical process, and process route is acted on " materialized pretreatment+A/O biochemical treatment+materialization advanced treating " substantially.Adsorption-Biodegradation occupies important function as a kind of water technology of combining in the advanced treating of sewage.The most frequently used sorbing material of absorption organic pollution can be divided into physisorption material, chemisorbed material and biological adsorption material at present.Wherein, physisorption material has active carbon, molecular sieve, zeolite, atlapulgite and clay minerals etc. to have the solid of high-specific surface area, have advantages of that eliminating efficiency is high, enrichment function is strong, but also poor, the easy desorption of existence and stability, be subject to the deficiencies such as influence of temperature change.Chemisorbed material mainly comprises silica gel, synthetic fibers, resin, utilizes the molecularly imprinted polymer of biochemistry and Polymer Synthesizing etc.Conventional biological adsorption material has broad leaved plant, the microorganism in fungi, soil and water etc.But, also lack the sorbing material for coal chemical industrial waste water advanced treating at present.
In the organic process of microbial degradation, need the participation of phosphorus nutrition element, in coal chemical industrial waste water, contained phosphorus cannot meet the requirement of microorganism, and the adsorbent still with slowly-releasing phosphorus function can meet this requirement.For strengthening adsorbent, coal chemical industrial waste water is carried out to the effect of advanced treating, need the adsorptive reactor of development of new.Meanwhile, the exploitation of reactor and the sorbing material preparation that matches are with it combined and carried out, it is one of emphasis of research at present that the adsorption efficiency of sorbing material is not fully exerted.At present, also lack the combine research of aspect of the exploitation of reactor and the sorbing material preparation that matches with it.
Summary of the invention
The object of this invention is to provide the multistage adsorption tank for biological reinforced advanced treating coal chemical industrial waste water.Particular content of the present invention is as follows:
Multistage adsorption tank for biological reinforced advanced treating coal chemical industrial waste water is comprised of one-level baffle plate (1), adsorbent import (2), secondary baffle plate (3), minute water plate (4), screen cloth (5), delivery port (6), adsorbent outlet (7), water inlet (8), multi-functional absorption agent (9), reactor body (10).One-level baffle plate (1), secondary baffle plate (3), minute water plate (4) and multi-functional absorption agent (9) are positioned at the inside of reactor body (10), wherein one-level baffle plate (1) is closely connected with reactor body with secondary baffle plate (3), divide water plate (4) bottom to leave a blank, multi-functional absorption agent (9) can freely be filled between baffle plate; Adsorbent import (2) is placed in the top of reactor body (10), and the position of adsorbent import is relevant to adsorption tank progression; Adsorbent outlet (7) and water inlet (8) are all positioned at the bottom of reactor body (10).Screen cloth (5) is arranged on the pool wall of reactor body (10), and delivery port (6) is positioned at the outside of screen cloth (5).
Wherein, described multi-functional absorption agent is prepared by the following method:
(1) NH that is 0.35mol/L by 100mL concentration
4hCO
3the NH that solution and 100mL concentration are 0.62mol/L
4h
2pO
4mix, obtain mixed liquor A l, the NH that is then 0.01mol/L by concentration
4oH solution and concentration are that the pH value of the hydrochloric acid solution adjusting mixed liquor A l of 0.01mol/L is 9.0, obtain mixed liquor A;
(2) 200mL mixed liquor A is slowly added drop-wise under stirring condition to the Ca (NO that 300mL concentration is 0.025mol/L
3)
2in solution, obtain mixed liquid B;
(3) in mixed liquid B, dropwise add dense HNO
3to clarification, obtain mixed liquor C;
(4) it is 3.5 that the hydrochloric acid solution that the NaOH solution that is 0.01mol/L by concentration and concentration are 0.01mol/L regulates the pH value of mixed liquor C, obtains mixed liquor D;
(5) to adding 100mL concentration in mixed liquor D, be the NH of 1.1mol/L
4the Cl aqueous solution, obtains mixed liquor E after mixing;
(6) to adding 50mL concentration in mixed liquor E, be the Ca-EDTA potassium solution of 0.15mol/L, after mixing, obtain mixed liquor F;
(7) the azodiisobutyronitrile chloroformic solution that the divinylbenzene chloroformic solution that the styrene chloroformic solution that is 11.5% by 200mL mass fraction, 40mL mass fraction are 9.5% and 40mL mass fraction are 1.5% fully mixes, and obtains mixed liquor M;
(8) 70mL mixed liquor F is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor O;
(9) 420mL mixed liquor O being added drop-wise under 1000r/min stirring condition to 210mL mass fraction is, in 5.5% poly-vinyl alcohol solution, then under 1000r/min condition, to stir 8min, obtains mixed liquor P;
(10) poly-vinyl alcohol solution that is 0.7% by 1380mL mass fraction joins in mixed liquor P, under 1000r/min condition, stir 7～8h, then at rotating speed, be under 6000r/min condition, to carry out centrifugation, then with deionized water washing 3 times, freeze drying obtains having the adsorbent of phosphorus slow-release function;
(11) adsorbent step (10) being obtained is cultivated 24h in petroleum hydrocarbon degradation bacteria culture fluid, and petroleum hydrocarbon degradation bacterium is absorbed and fixed on adsorbent, and wherein the bacteria containing amount of petroleum hydrocarbon degradation bacteria culture fluid is 5 * 10
10cFU/ml, the consisting of of nutrient solution: NH
4nO
3: 2.0g.L
-1, NaCl:10.5g/L, KH
2pO
4: 2.5gL
-1, FeCl
3: 0.10gL
-1, MgSO
4: 3.5gL
-1, CaCl
22H
2o:0.15gL
-1;
(12) adsorbent step (11) being obtained takes out air-dry, can obtain multi-functional absorption agent.
The invention has the beneficial effects as follows, when this absorption one regeneration fluid bed carries out advanced treating to coal chemical industrial waste water, efficiency is high, cost is low, simple to operate.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram for the multistage adsorption tank of biological reinforced advanced treating coal chemical industrial waste water.Accompanying drawing 1 is the schematic diagram of multistage adsorption tank reactor.In accompanying drawing 1,1 is one-level baffle plate, and 2 is adsorbent import, and 3 is secondary baffle plate, and 4 is a minute water plate, and 5 is screen cloth, and 6 is delivery port, and 7 is adsorbent outlet, and 8 is water inlet, and 9 is multi-functional absorption agent, and 10 is reactor body.
The specific embodiment
Embodiment
(1) as follows for the preparation process of the multistage adsorption tank of biological reinforced advanced treating coal chemical industrial waste water:
Multistage adsorption tank for biological reinforced advanced treating coal chemical industrial waste water is that poly (methyl methacrylate) plate is made, and the length of reactor body is 90cm, and wide is 30cm, and height is 50cm, is equally divided into 3 spaces.The length of one-level baffle plate is 50cm, and wide is 30cm, and top 5cm is screen size 20 object lucite screen clothes, is installed on first space separation.The length of one-level baffle plate is 50cm, and wide is 30cm, and top 10cm is screen size 20 object lucite screen clothes, is installed on second space separation.Two pieces minutes water plates lay respectively at the middle discontinuity surface in second, third space parallel with baffle plate, and minute water plate is long is 40cm, and wide is 30cm, from top, installs downwards.Adsorbent import the first space is one, is positioned in the middle of end face, and the second and the 3rd space is respectively two, lays respectively at the centre of the two space end faces that minute water plate is divided into, diameter 8cm.Water inlet is positioned at the central point of first bottom surface, space, diameter 12cm, water inlet length 15cm.Adsorbent outlet is positioned at the central point of second and third bottom surface, space, diameter 12cm.Screen mesh size 20 orders, delivery port diameter 12cm, length 15cm, its center of circle is positioned at adsorption tank the 3rd pool wall vertical center line middle and upper part, right side, space, apart from top 10cm.
(2) multi-functional absorption agent is prepared by following process:
The NH that is 0.35mol/L by 100mL concentration
4hCO
3the NH that solution and 100mL concentration are 0.62mol/L
4h
2pO
4mix, obtain mixed liquor A l, the NH that is then 0.01mol/L by concentration
4oH solution and concentration are that the pH value of the hydrochloric acid solution adjusting mixed liquor A l of 0.01mol/L is 9.0, obtain mixed liquor A; 200mL mixed liquor A is slowly added drop-wise under stirring condition to the Ca (NO that 300mL concentration is 0.025mol/L
3)
2in solution, obtain mixed liquid B; In mixed liquid B, dropwise add dense HNO
3to clarification, obtain mixed liquor C; It is 3.5 that the hydrochloric acid solution that the NaOH solution that is 0.0lmo1/L by concentration and concentration are 0.01mol/L regulates the pH value of mixed liquor C, obtains mixed liquor D; To adding 100mL concentration in mixed liquor D, be the NH of 1.1mol/L
4the Cl aqueous solution, obtains mixed liquor E after mixing; To adding 50mL concentration in mixed liquor E, be the Ca-EDTA potassium solution of 0.15mol/L, after mixing, obtain mixed liquor F;
The azodiisobutyronitrile chloroformic solution that the divinylbenzene chloroformic solution that the styrene chloroformic solution that is 11.5% by 200mL mass fraction, 40mL mass fraction are 9.5% and 40mL mass fraction are 1.5% fully mixes, and obtains mixed liquor M;
60mL mixed liquor F is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor O;
It is in 5.5% poly-vinyl alcohol solution that 420mL mixed liquor O is added drop-wise to 210mL mass fraction under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtains mixed liquor P;
The poly-vinyl alcohol solution that is 0.7% by 1380mL mass fraction joins in mixed liquor P, under 1000r/min condition, stir 7～8h, then at rotating speed, be under 6000r/min condition, to carry out centrifugation, then with deionized water washing 3 times, freeze drying obtains having the adsorbent of nitrogen phosphorus slow-release function;
The adsorbent with nitrogen phosphorus slow-release function is cultivated to 24h in petroleum hydrocarbon degradation bacteria culture fluid and take out air-dryly, can obtain multi-functional absorption agent.
(3) degradation experiment
The adsorption-regeneration fluid bed that uses the present invention to obtain has carried out Adsorption-Biodegradation test to coal chemical industrial waste water, result shows that this adsorption-regeneration fluid bed can efficiently remove the multiple biodegradable organic compounds in coal chemical industrial waste water, when influent COD is 124mg/L, operation is 20 days continuously, and the COD after processing in water outlet all can be reduced to below 44mg/L.
Claims (1)
1. the multistage adsorption tank for biological reinforced advanced treating coal chemical industrial waste water, it is characterized in that, this multistage adsorption tank is comprised of one-level baffle plate, adsorbent import, secondary baffle plate, minute water plate, screen cloth, delivery port, adsorbent outlet, water inlet, multi-functional absorption agent, reactor body; One-level baffle plate, secondary baffle plate, minute water plate and multi-functional absorption agent are positioned at the inside of reactor body, and wherein one-level baffle plate is closely connected with reactor body with secondary baffle plate, leave a blank in a minute water plate bottom, and multi-functional absorption agent can freely be filled between baffle plate; Adsorbent import is placed in the top of reactor body, and the position of adsorbent import is relevant to adsorption tank progression; Adsorbent outlet and water inlet are all positioned at the bottom of reactor body; Screen cloth is arranged on the pool wall of reactor body, and delivery port is positioned at the outside of screen cloth; Wherein, multi-functional absorption agent is prepared by the following method:
(1) NH that is 0.35mol/L by 100mL concentration
4hCO
3the NH that solution and 100mL concentration are 0.62mol/L
4h
2pO
4mix, obtain mixed liquor A 1, the NH that is then 0.01mol/L by concentration
4oH solution and concentration are that the pH value of the hydrochloric acid solution adjusting mixed liquor A l of 0.01mol/L is 9.0, obtain mixed liquor A;
(2) 200mL mixed liquor A is slowly added drop-wise under stirring condition to the Ca (NO that 300mL concentration is 0.025mol/L
3)
2in solution, obtain mixed liquid B;
(3) in mixed liquid B, dropwise add dense HNO
3to clarification, obtain mixed liquor C;
(4) it is 3.5 that the hydrochloric acid solution that the NaOH solution that is 0.01mol/L by concentration and concentration are 0.01mol/L regulates the pH value of mixed liquor C, obtains mixed liquor D;
(5) to adding 100mL concentration in mixed liquor D, be the NH of 1.1mol/L
4the Cl aqueous solution, obtains mixed liquor E after mixing;
(6) to adding 50mL concentration in mixed liquor E, be the Ca-EDTA potassium solution of 0.15mol/L, after mixing, obtain mixed liquor F;
(7) the azodiisobutyronitrile chloroformic solution that the divinylbenzene chloroformic solution that the styrene chloroformic solution that is 11.5% by 200mL mass fraction, 40mL mass fraction are 9.5% and 40mL mass fraction are 1.5% fully mixes, and obtains mixed liquor M;
(8) 70mL mixed liquor F is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor O;
(9) 420mL mixed liquor O being added drop-wise under 1000r/min stirring condition to 210mL mass fraction is, in 5.5% poly-vinyl alcohol solution, then under 1000r/min condition, to stir 8min, obtains mixed liquor P;
(10) poly-vinyl alcohol solution that is 0.7% by 1380mL mass fraction joins in mixed liquor P, under 1000r/min condition, stir 7～8h, then at rotating speed, be under 6000r/min condition, to carry out centrifugation, then with deionized water washing 3 times, freeze drying obtains having the adsorbent of phosphorus slow-release function;
(11) adsorbent step (10) being obtained is cultivated 24h in petroleum hydrocarbon degradation bacteria culture fluid, and petroleum hydrocarbon degradation bacterium is absorbed and fixed on adsorbent, and wherein the bacteria containing amount of petroleum hydrocarbon degradation bacteria culture fluid is 5 * 10
10cFU/ml, the consisting of of nutrient solution: NH
4nO
3: 2.0gL
-1, NaCl:10.5g/L, KH
2pO
4: 2.5gL
-1, FeCl
3: 0.10gL
-1, MgSO
4: 3.5gL
-1, CaCl
22H
2o:0.15gL
-1;
(12) adsorbent step (11) being obtained takes out air-dry, can obtain multi-functional absorption agent.
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|---|---|---|---|
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|---|---|---|---|
| CN201310686428.1A CN103611515B (en) | 2013-12-12 | 2013-12-12 | For the multi-stage absorption pond of biological reinforced advanced treating coal chemical industrial waste water |
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| CN103611515B CN103611515B (en) | 2015-08-05 |
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Citations (6)
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| WO1996039823A1 (en) * | 1995-06-07 | 1996-12-19 | Lee County Mosquito Control District | Methods for reducing environmental contaminants |
| CN1415537A (en) * | 2002-11-19 | 2003-05-07 | 武汉化工学院 | Adulterated hydroxyapatite and its production method |
| KR20090116846A (en) * | 2008-05-08 | 2009-11-12 | 김희래 | Functional materials manufacture methods for remove of sick house syndrome |
| CN102500340A (en) * | 2011-09-30 | 2012-06-20 | 北京师范大学 | Porous particle with functions of adsorbing and biodegrading petroleum hydrocarbon and preparation method of porous particle |
| CN102963959A (en) * | 2012-12-03 | 2013-03-13 | 北京师范大学 | Preparation method of microsphere particles capable of slowly releasing nitrogen and adsorbing-biologically degrading petroleum hydrocarbon |
| CN102976499A (en) * | 2012-12-03 | 2013-03-20 | 北京师范大学 | Method for preparing composite board capable of simultaneously slowly releasing nitrogen and adsorbing/biologically degrading petroleum hydrocarbons |
-
2013
- 2013-12-12 CN CN201310686428.1A patent/CN103611515B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996039823A1 (en) * | 1995-06-07 | 1996-12-19 | Lee County Mosquito Control District | Methods for reducing environmental contaminants |
| CN1415537A (en) * | 2002-11-19 | 2003-05-07 | 武汉化工学院 | Adulterated hydroxyapatite and its production method |
| KR20090116846A (en) * | 2008-05-08 | 2009-11-12 | 김희래 | Functional materials manufacture methods for remove of sick house syndrome |
| CN102500340A (en) * | 2011-09-30 | 2012-06-20 | 北京师范大学 | Porous particle with functions of adsorbing and biodegrading petroleum hydrocarbon and preparation method of porous particle |
| CN102963959A (en) * | 2012-12-03 | 2013-03-13 | 北京师范大学 | Preparation method of microsphere particles capable of slowly releasing nitrogen and adsorbing-biologically degrading petroleum hydrocarbon |
| CN102976499A (en) * | 2012-12-03 | 2013-03-20 | 北京师范大学 | Method for preparing composite board capable of simultaneously slowly releasing nitrogen and adsorbing/biologically degrading petroleum hydrocarbons |
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