CN103613163A - Floating plate capable of realizing sustained release of nutrient elements and adsorbing petroleum hydrocarbons and preparation method thereof - Google Patents
Floating plate capable of realizing sustained release of nutrient elements and adsorbing petroleum hydrocarbons and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a floating plate capable of realizing sustained release of nutrient elements and adsorbing petroleum hydrocarbons and a preparation method thereof. The preparation method comprises the steps of preparing a mixed solution F from a NH4HCO3 solution, a Ca(NO3)2 solution, a (NH4)2HPO4 solution, a NaOH solution, a nitric acid solution, a urea water solution and an ethylenediaminetetraacetic acid calcium sodium solution; preparing a mixed solution M from a poly beta-hydroxybutyrate chloroform solution and a polyethylene glycol chloroform solution; dropping the mixed solution F into the mixed solution M to obtain a mixed solution O; spraying distilled water into a container containing liquid nitrogen to prepare ice ball particles, screening and then placing in a mold for compaction; pouring the mixed solution O into the mold for freezing and shaping, then demolding, and freezing to obtain the floating plate capable of realizing the sustained release of the nutrient elements and adsorbing the petroleum hydrocarbons. The preparation process disclosed by the invention is simple, and the prepared floating plate has high treatment efficiency against petroleum hydrocarbon type pollutants and can prevent secondary pollution and destruction to an ecological environment of a water body.
Description
Technical field
The invention belongs to the processing technology field that is subject to petroleum hydrocarbon contaminated water body, particularly a kind of can slowly-releasing phosphorus nutrition element and floating plate and the preparation method of absorption petroleum hydrocarbon.
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 ecotope 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 biological process.Chemical method is the technological line 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.It is efficient, economical that bioremediation technology has, the feature such as 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 mechanism, when chemical agent is used in restriction again simultaneously, use biological restoration can show its larger superiority.Physisorphtion is that a kind of processing efficiency 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 sorbent material is remarketed after saturated, if can prepare a kind of biodegradable sorbent material, simultaneously on sorbent material 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 sorbent material 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 microbiological deterioration petroleum hydrocarbon and sorbent material itself, need the participation of phosphorus nutrition element, generally in oil spill water body, the contained nutritive elements such as phosphorus cannot meet the needs of microorganism, yet the sorbent material with slowly-releasing 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 slowly-releasing phosphoric and physical adsorption-biological degradation 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 processing efficiency, reduction environmental pollution.
Summary of the invention
The object of this invention is to provide a kind of can slowly-releasing phosphorus nutrition element and floating plate and the preparation method of absorption petroleum hydrocarbon.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 solution 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 solution C, obtains mixed solution D;
(5) to adding 100mL concentration in mixed solution D, be the aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed solution E;
(6) to adding 50mL concentration in mixed solution E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed solution F;
(7) the polyoxyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 7.5% by 240mL massfraction and 40mL massfraction are 5.5% fully mixes, and obtains mixed solution M;
(8) 60mL mixed solution F is added drop-wise in mixed solution M under 1000r/min agitation condition, then under 1000r/min condition, stirs 8min, obtain mixed solution O;
(9) distilled water being spurted in the container that liquid nitrogen is housed to quick freezing and made ice hockey particle, is that the ice hockey particle of 50～100 μ m is stand-by with choosing grain size scope after screen cloth screening;
(10) garbled ice hockey particle in step (9) is placed in mould cavity and compacting;
(11) mixed solution O is poured in the mould that step (10) obtains, and together puts into liquid nitrogen freeze settled 6 hours, obtain solid mixt after taking out the demoulding; This solid mixt vacuum lyophilization is removed to can obtain after chloroform and ice hockey particle can slowly-releasing phosphorus nutrition element and the floating plate of absorption petroleum hydrocarbon.
The invention has the beneficial effects as follows, manufacture craft is simple, and what make is can slowly-releasing phosphorus nutrition element high to petroleum hydrocarbon contaminant processing efficiency with the floating plate of absorption petroleum hydrocarbon, and can not cause secondary pollution and destruction to water ecological setting.
Embodiment
The invention provides a kind of can slowly-releasing phosphorus nutrition element and floating plate and the preparation method of absorption petroleum hydrocarbon, with an embodiment, the present invention is described below.
Embodiment 1.
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 solution 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 solution C, obtains mixed solution D; To adding 100mL concentration in mixed solution D, be the aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed solution E; To adding 50mL concentration in mixed solution E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed solution F;
The polyoxyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 7.5% by 240mL massfraction and 40mL massfraction are 5.5% fully mixes, and obtains mixed solution M; 60mL mixed solution F is added drop-wise in mixed solution M under 1000r/min agitation condition, then under 1000r/min condition, stirs 8min, obtain mixed solution O;
Distilled water being spurted in the container that liquid nitrogen is housed to quick freezing and made ice hockey particle, is that the ice hockey particle of 50～100 μ m is placed in mould cavity and compacting with choosing grain size scope after screen cloth screening; Mixed solution O is poured in mould, and together puts into liquid nitrogen freeze settled 6 hours, after the taking-up demoulding, obtain solid mixt; This solid mixt vacuum lyophilization is removed to can obtain after chloroform and ice hockey particle can slowly-releasing phosphorus nutrition element and the floating plate of absorption petroleum hydrocarbon.
Be below use that the inventive method makes can to the petroleum hydrocarbon in petroleum hydrocarbon contaminated water body, carry out absorption and biodegradation test with the floating plate of absorption petroleum hydrocarbon by slowly-releasing phosphorus nutrition element, further illustrate the present invention.
What utilization the inventive method made can carry out absorption and biodegradation test with the floating plate of absorption petroleum hydrocarbon to the petroleum hydrocarbon in petroleum hydrocarbon contaminated water body by slowly-releasing phosphorus nutrition element, result shows that this floating plate can effectively adsorb and biological degradation the petroleum hydrocarbon in water body: when the starting point concentration of polluted-water Petroleum Hydrocarbon is 86.4mg/L, in the water body of 500mL, add 12g floating plate, add petroleum hydrocarbon degradation bacterium, the bacteria containing amount that makes solution is 5 * 10
7cFU/ml, after 10 hours, the concentration of water body Petroleum Hydrocarbon is reduced to 0.01mg/L, and after 110 days, floating plate Petroleum Hydrocarbon concentration does not detect, and after 210 days, the quality of floating plate reduces by 44%.
Claims (1)
1. can slowly-releasing phosphorus nutrition element and floating plate and the preparation method of absorption petroleum hydrocarbon, it is characterized in that, the concrete steps of the method 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 solution 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 solution C, obtains mixed solution D;
(5) to adding 100mL concentration in mixed solution D, be the aqueous solution of urea of 1.2mol/L, after mixing, obtain mixed solution E;
(6) to adding 50mL concentration in mixed solution E, be the calcio-disodium edetate solution of 0.15mol/L, after mixing, obtain mixed solution F;
(7) the polyoxyethylene glycol chloroformic solution that the poly beta-hydroxybutyrate chloroformic solution that is 7.5% by 240mL massfraction and 40mL massfraction are 5.5% fully mixes, and obtains mixed solution M;
(8) 60mL mixed solution F is added drop-wise in mixed solution M under 1000r/min agitation condition, then under 1000r/min condition, stirs 8min, obtain mixed solution O;
(9) distilled water being spurted in the container that liquid nitrogen is housed to quick freezing and made ice hockey particle, is that the ice hockey particle of 50～100 μ m is stand-by with choosing grain size scope after screen cloth screening;
(10) garbled ice hockey particle in step (9) is placed in mould cavity and compacting;
(11) mixed solution O is poured in the mould that step (10) obtains, and together puts into liquid nitrogen freeze settled 6 hours, obtain solid mixt after taking out the demoulding; This solid mixt vacuum lyophilization is removed to can obtain after chloroform and ice hockey particle can slowly-releasing phosphorus nutrition element and the floating plate of absorption petroleum hydrocarbon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310686385.7A CN103613163B (en) | 2013-12-12 | 2013-12-12 | Floating plate capable of realizing sustained release of nutrient elements and adsorbing petroleum hydrocarbons and preparation method thereof |
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|---|---|---|---|
| CN201310686385.7A CN103613163B (en) | 2013-12-12 | 2013-12-12 | Floating plate capable of realizing sustained release of nutrient elements and adsorbing petroleum hydrocarbons and preparation method thereof |
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|---|---|
| CN103613163A true CN103613163A (en) | 2014-03-05 |
| CN103613163B CN103613163B (en) | 2015-04-29 |
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| KR20040110352A (en) * | 2003-06-18 | 2004-12-31 | 이동희 | Preparation method of fine spherical granule for water treatment containing magnetite powder and adsorbent of eutrophicating substance and organic matters, and ultra-high speed water treatment process using fine spherical granule |
| CN202322502U (en) * | 2011-09-30 | 2012-07-11 | 北京师范大学 | Biodegradable floating bed having biodegradation function on oil spilling polluted seawater |
| WO2012137220A2 (en) * | 2011-04-04 | 2012-10-11 | Indian Oil Corporation Ltd. | Bio-augmentation composition and use thereof for improving efficiency of effluent treatment in hydrocarbon processing plant |
| 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 |
| CN103011380A (en) * | 2012-12-03 | 2013-04-03 | 北京师范大学 | Preparation method of biodegradable oil absorption plate capable of slowly releasing nitrogen element |
-
2013
- 2013-12-12 CN CN201310686385.7A patent/CN103613163B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040110352A (en) * | 2003-06-18 | 2004-12-31 | 이동희 | Preparation method of fine spherical granule for water treatment containing magnetite powder and adsorbent of eutrophicating substance and organic matters, and ultra-high speed water treatment process using fine spherical granule |
| WO2012137220A2 (en) * | 2011-04-04 | 2012-10-11 | Indian Oil Corporation Ltd. | Bio-augmentation composition and use thereof for improving efficiency of effluent treatment in hydrocarbon processing plant |
| WO2012137220A3 (en) * | 2011-04-04 | 2013-04-25 | Indian Oil Corporation Ltd. | Bio-augmentation composition and use thereof for improving efficiency of effluent treatment in hydrocarbon processing plant |
| CN202322502U (en) * | 2011-09-30 | 2012-07-11 | 北京师范大学 | Biodegradable floating bed having biodegradation function on oil spilling polluted seawater |
| 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 |
| CN103011380A (en) * | 2012-12-03 | 2013-04-03 | 北京师范大学 | Preparation method of biodegradable oil absorption plate capable of slowly releasing nitrogen element |
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