CN103611508A - Copolymer adsorption ball with enhanced biodegradation function against various organic pollutants and preparation process thereof - Google Patents

Copolymer adsorption ball with enhanced biodegradation function against various organic pollutants and preparation process thereof Download PDF

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CN103611508A
CN103611508A CN201310688667.0A CN201310688667A CN103611508A CN 103611508 A CN103611508 A CN 103611508A CN 201310688667 A CN201310688667 A CN 201310688667A CN 103611508 A CN103611508 A CN 103611508A
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mixed liquor
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CN103611508B (en
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豆俊峰
袁静
丁爱中
许新宜
程莉蓉
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Beijing Normal University
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Beijing Normal University
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Abstract

The invention discloses a copolymer adsorption ball with an enhanced biodegradation function against various organic pollutants and a preparation process thereof. The preparation process comprises the steps of preparing a mixed solution F from NH4HCO3, Ca(NO3)2, (NH4)2HPO4, a urea water solution and an ethylenediaminetetraacetic acid calcium sodium solution; preparing a mixed solution L from urea and a formaldehyde water solution; preparing a mixed solution M from a poly beta-hydroxybutyrate chloroform solution and a polyethylene glycol chloroform solution; dropping the mixed solution L into the mixed solution M to obtain a mixed solution N; dropping the mixed solution F into the mixed solution N to obtain a mixed solution O; dropping the mixed solution O into a polyvinyl alcohol solution to obtain a mixed solution P; adding the polyvinyl alcohol solution into the mixed solution P and performing centrifugal separation to obtain the copolymer adsorption ball with a nitrogen and phosphorus sustained release function; culturing the copolymer adsorption ball in a petroleum hydrocarbon degrading bacterial culture solution for 24h and then taking out for air-drying. The preparation process disclosed by the invention is simple, and the prepared copolymer adsorption ball has the nitrogen and phosphorus sustained release function, the function of adsorbing various organic pollutants and the function of degrading petroleum hydrocarbons.

Description

Copolymer adsorbing sphere and the preparation technology Some Organic Pollutants to enhanced biodegradation function
Technical field
The invention belongs to the processing technology field that is subject to oil spill water body, particularly a kind of copolymer adsorbing sphere and preparation technology Some Organic Pollutants to enhanced biodegradation function.
Background technology
In recent years, demand oil and goods thereof day by day being increased along with countries in the world, at sea exploit, load and unload, transport and utilize oil spill accident in oil process to happen occasionally, not only cause a large amount of crude oil to run off, also environment is caused to severe contamination, be on the rise and threatening the ecological environment of water body and land-based area, water body environment, natural resources and culture resources etc. are had to long-term harm, therefore, water body oil spill has become the great environmental problem that people must face.
The method of disposing at present water body oil spill both at home and abroad mainly contains Physical, chemical method and bioanalysis.Chemical method is the technology path of comparative maturity in point-source pollution is administered, and has obtained propagation and employment widely.But in water body oil spill is administered, adopt chemical method, need in water body, add chemical agent, the chemical agent wherein adding may produce secondary pollution on the one hand, can produce short-term or long-term impact to water ecological setting on the other hand.The features such as bioremediation technology has efficiently, economy, safety, non-secondary pollution, become the on-the-spot important selection approach of removing water body oil spill, the oil sheet that particularly cannot remove mechanical device, when chemical agent is used in restriction again simultaneously, use biological prosthetic its larger superiority of showing.Physisorphtion is that a kind for the treatment of effeciency is high, cost is low, without sediment pollution, simple to operate and can not cause to water ecological setting the method for secondary pollution and destruction, can solve preferably the existing problem of chemical method.But, the cycle of bioremediation technology is long, physisorphtion faces absorption needs the problem that adsorbent is remarketed after saturated, if can prepare a kind of biodegradable adsorbent, simultaneously on adsorbent fixedly petroleum hydrocarbon degradation bacterium to improve the clearance of petroleum hydrocarbon, effect by microbe inoculation after absorption is saturated is adsorbent petroleum hydrocarbon degradation, and final biodegradable adsorbent itself also can thoroughly degrade, and can address this problem.Physisorphtion and fixation of microbe are carried out to enhancing degradation and combine, for disposing water body oil spill, will there is larger advantage.
In the process of microbial degradation petroleum hydrocarbon and adsorbent itself, need the participation of nitrogen and phosphorus nutrition element, generally in oil spill water body, the nutrient such as contained nitrogen and phosphorus cannot meet the needs of microorganism, yet the adsorbent with slow-release nitrogen and phosphorus function can meet this requirement.For physisorphtion and fixation of microbe being carried out to the technology that enhancing degradation combines, in processing, water body oil spill obtains further propagation and employment, need to develop the material simultaneously with slow-release nitrogen and P elements and physical absorption-biodegradation petroleum hydrocarbon function, this has great importance, but also lacks the technology of this aspect at present and study and report for raising water body oil spill treatment effeciency, reduction environmental pollution.
Summary of the invention
The object of this invention is to provide a kind of copolymer adsorbing sphere and preparation technology Some Organic Pollutants to enhanced biodegradation function, this copolymer adsorbing sphere has the slow-release function of nitrogen and phosphorus.Its concrete steps are as follows:
(1) NH that is 0.35mol/L by 100mL concentration 4hCO 3ca (the NO that solution and 100mL concentration are 0.25mol/L 3) 2solution, obtains mixed liquor A after mixing;
(2) (the NH that is 0.35mol/L by 100mL concentration 4) 2hPO 4solution is slowly added drop-wise in 200mL mixed liquor A under the condition stirring, and obtains 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 salpeter 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 aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed liquor E;
(6) to adding 50mL concentration in mixed liquor E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed liquor F;
(7) aqueous solution of urea that is 45% by 60mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor G; The formalin that is 35% by 10mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor H;
(8) to drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor G under 1000r/min stirring condition, making the pH value of solution is 7.2～7.4, obtains mixed liquor I;
(9) mixed liquor H is joined in mixed liquor I under 1000r/min stirring condition, be then placed in 43 ℃ of water-baths and stir 90～100 minutes under 1000r/min condition, obtain mixed liquor J;
(10) to drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor J under 1000r/min stirring condition, the pH value that makes solution is 3.7～3.9, then be placed in 38 ℃ of water-baths and under 1000r/min condition, stir 90～100 minutes, obtain mixed liquor K;
(11) 1600mL deionized water is added drop-wise in mixed liquor K under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor L;
(12) the polyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 8.5% by 240mL mass fraction and 60mL mass fraction are 6.5% fully mixes, and obtains mixed liquor M;
(13) 60mL mixed liquor L is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor N;
(14) 60mL mixed liquor F is added drop-wise in mixed liquor N under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor O;
(15) 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;
(16) 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 copolymer adsorbing sphere of nitrogen phosphorus slow-release function;
(17) copolymer adsorbing sphere step (16) being obtained is cultivated 24h in petroleum hydrocarbon degradation bacteria culture fluid, and petroleum hydrocarbon degradation bacterium is absorbed and fixed on copolymer adsorbing sphere, 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: 10.5gL -1, KH 2pO 4: 2.5gL -1, FeCl 3: 0.10gL -1, MgSO 4: 3.5gL -1, CaCl 22H 2o: 0.15gL -1;
(18) copolymer adsorbing sphere step (17) being obtained takes out air-dry, can obtain Some Organic Pollutants to have the copolymer adsorbing sphere of enhanced biodegradation function.
The invention has the beneficial effects as follows, the copolymer adsorbing sphere making has slow-release nitrogen phosphorus function, the absorption function of Some Organic Pollutants, the function of decomposing petroleum hydrocarbon, there is biodegradable simultaneously, be applied to pollution scene and can not cause secondary pollution and destruction to water ecological setting.
The specific embodiment
The invention provides a kind of copolymer adsorbing sphere and preparation technology Some Organic Pollutants to enhanced biodegradation function, with an embodiment, the present invention is described below.
Embodiment
The NH that is 0.35mol/L by 100mL concentration 4hCO 3ca (the NO that solution and 100mL concentration are 0.25mol/L 3) 2solution, obtains mixed liquor A after mixing; (the NH that is 0.35mol/L by 100mL concentration 4) 2hPO 4solution is slowly added drop-wise in 200mL mixed liquor A under the condition stirring, and obtains mixed liquid B; In mixed liquid B, dropwise add dense HNO 3to clarification, obtain mixed liquor C; It is 3.5 that the salpeter 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; To adding 100mL concentration in mixed liquor D, be the aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed liquor E; To adding 50mL concentration in mixed liquor E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed liquor F.
The aqueous solution of urea that is 45% by 60mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor G; The formalin that is 35% by 10mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor H; To drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor G under 1000r/min stirring condition, making the pH value of solution is 7.2～7.4, obtains mixed liquor I; Mixed liquor H is joined in mixed liquor I under 1000r/min stirring condition, be then placed in 43 ℃ of water-baths and under 1000r/min condition, stir 90～100 minutes, obtain mixed liquor J; To drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor J under 1000r/min stirring condition, the pH value that makes solution is 3.7～3.9, then be placed in 38 ℃ of water-baths and under 1000r/min condition, stir 90～100 minutes, obtain mixed liquor K; 1600mL deionized water is added drop-wise in mixed liquor K under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor L.
The polyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 8.5% by 240mL mass fraction and 60mL mass fraction are 6.5% fully mixes, and obtains mixed liquor M.
60mL mixed liquor L is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor N.
60mL mixed liquor F is added drop-wise in mixed liquor N 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 copolymer adsorbing sphere of nitrogen phosphorus slow-release function.
The copolymer adsorbing sphere with nitrogen phosphorus slow-release function obtaining is cultivated to 24h in petroleum hydrocarbon degradation bacteria culture fluid and take out air-dryly, can obtain Some Organic Pollutants to have the copolymer adsorbing sphere of enhanced biodegradation function.
Be that the copolymer adsorbing sphere that Some Organic Pollutants is had to an enhanced biodegradation function that uses that the inventive method makes has carried out absorption and enhanced biodegradation test to the petroleum hydrocarbon in oil spill water body below, further illustrate the present invention.
The copolymer adsorbing sphere that Some Organic Pollutants is had to an enhanced biodegradation function that uses that the inventive method makes has carried out absorption and enhanced biodegradation test to the petroleum hydrocarbon in oil spill water body, result shows that this copolymer adsorbing sphere can effectively adsorb and enhanced biodegradation the petroleum hydrocarbon in water body: when the initial concentration of polluted-water Petroleum Hydrocarbon is 86.4mg/L, in the water body of 500mL, add 8g copolymer adsorbing sphere, after 10 hours, the concentration of water body Petroleum Hydrocarbon is reduced to 0.01mg/L, within 10 days, rear copolymer adsorbing sphere Petroleum Hydrocarbon concentration does not detect, the quality of 150 days rear copolymer adsorbing spheres reduces by 62%.

Claims (1)

1. Some Organic Pollutants is had to copolymer adsorbing sphere and the preparation technology of enhanced biodegradation function, it is characterized in that, the concrete steps of this technique are as follows:
(1) NH that is 0.35mol/L by 100mL concentration 4hCO 3ca (the NO that solution and 100mL concentration are 0.25mol/L 3) 2solution, obtains mixed liquor A after mixing;
(2) (the NH that is 0.35mol/L by 100mL concentration 4) 2hPO 4solution is slowly added drop-wise in 200mL mixed liquor A under the condition stirring, and obtains 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 salpeter 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 aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed liquor E;
(6) to adding 50mL concentration in mixed liquor E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed liquor F;
(7) aqueous solution of urea that is 45% by 60mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor G; The formalin that is 35% by 10mL mass fraction is placed in 43 ℃ of water-bath constant temperature and within 35 minutes, obtains mixed liquor H;
(8) to drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor G under 1000r/min stirring condition, making the pH value of solution is 7.2～7.4, obtains mixed liquor I;
(9) mixed liquor H is joined in mixed liquor I under 1000r/min stirring condition, be then placed in 43 ℃ of water-baths and stir 90～100 minutes under 1000r/min condition, obtain mixed liquor J;
(10) to drip the HCl solution that NaOH solution that concentration is 0.01mol/L and concentration are 0.005mol/L in mixed liquor J under 1000r/min stirring condition, the pH value that makes solution is 3.7～3.9, then be placed in 38 ℃ of water-baths and under 1000r/min condition, stir 90～100 minutes, obtain mixed liquor K;
(11) 1600mL deionized water is added drop-wise in mixed liquor K under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor L;
(12) the polyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 8.5% by 240mL mass fraction and 60mL mass fraction are 6.5% fully mixes, and obtains mixed liquor M;
(13) 60mL mixed liquor L is added drop-wise in mixed liquor M under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor N;
(14) 60mL mixed liquor F is added drop-wise in mixed liquor N under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor O;
(15) 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;
(16) 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 copolymer adsorbing sphere of nitrogen phosphorus slow-release function;
(17) copolymer adsorbing sphere step (16) being obtained is cultivated 24h in petroleum hydrocarbon degradation bacteria culture fluid, and petroleum hydrocarbon degradation bacterium is absorbed and fixed on copolymer adsorbing sphere, 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;
(18) copolymer adsorbing sphere step (17) being obtained takes out air-dry, can obtain Some Organic Pollutants to have the copolymer adsorbing sphere of enhanced biodegradation function.
CN201310688667.0A 2013-12-12 2013-12-12 Some Organic Pollutants is had to Copolymer adsorption ball and the preparation technology of enhanced biodegradation function Expired - Fee Related CN103611508B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308223A (en) * 2021-06-18 2021-08-27 义乌壹统胶科技有限公司 High-purity glue and glue making process thereof
CN114713619A (en) * 2022-04-07 2022-07-08 中石化石油工程技术服务有限公司 Treatment method of soil polluted by aged crude oil

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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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US5599764A (en) * 1994-04-29 1997-02-04 California Institute Of Technology Size selective hydrophobic adsorbent for organic molecules
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
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308223A (en) * 2021-06-18 2021-08-27 义乌壹统胶科技有限公司 High-purity glue and glue making process thereof
CN113308223B (en) * 2021-06-18 2023-04-07 义乌壹统胶科技有限公司 High-purity glue and glue making process thereof
CN114713619A (en) * 2022-04-07 2022-07-08 中石化石油工程技术服务有限公司 Treatment method of soil polluted by aged crude oil

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