CN103691413A - Adsorbent material having a plurality of functions for petroleum hydrocarbon contaminants, and preparation process of adsorbent material - Google Patents

Adsorbent material having a plurality of functions for petroleum hydrocarbon contaminants, and preparation process of adsorbent material Download PDF

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Publication number
CN103691413A
CN103691413A CN201310684751.5A CN201310684751A CN103691413A CN 103691413 A CN103691413 A CN 103691413A CN 201310684751 A CN201310684751 A CN 201310684751A CN 103691413 A CN103691413 A CN 103691413A
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mixed liquor
solution
concentration
under
petroleum hydrocarbon
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CN103691413B (en
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豆俊峰
秦伟
丁爱中
程莉蓉
单明军
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Beijing Normal University
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Beijing Normal University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses an adsorbent material having a plurality of functions for petroleum hydrocarbon contaminants, and a preparation process of the adsorbent material. The preparation method of the adsorbent material comprises the steps: preparing a mixed solution F from NH4HCO3, Ca(NO3)2, (NH4)2HPO4, a urea aqueous solution and a calcium sodium edetate dihydrate solution; preparing a mixed solution G from a poly(beta-polyhydroxybutyrate) chloroform solution and a polyethylene glycol chloroform solution; adding dropwise the mixed solution F to the mixed solution G to obtain a mixed solution H; adding dropwise the mixed solution H to a polyvinyl alcohol solution to obtain a mixed solution I; and adding the polyvinyl alcohol solution to the mixed solution I and then centrifugally separating, and freeze-drying to obtain the adsorbent material having a plurality of functions for petroleum hydrocarbon contaminants. The adsorbent material having a plurality of functions for the petroleum hydrocarbon contaminants, which is disclosed by the invention, is simple in fabrication process; the obtained adsorbent material has a phosphorus controlled-release function and a function of adsorbing the petroleum hydrocarbon, and also has biodegradability.

Description

Sorbing material and the preparation technology petroleum hydrocarbon contaminant to several functions
Technical field
The invention belongs to the processing technology field that is subject to oil spill water body, particularly a kind of sorbing material and preparation technology petroleum hydrocarbon contaminant to several functions.
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 restoration can show its larger superiority.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 phosphorus nutrition element, generally in oil spill water body, the contained nutrients such as phosphorus cannot meet the needs of microorganism, yet the adsorbent 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 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 sorbing material and preparation technology petroleum hydrocarbon contaminant to several functions, this sorbing material has the slow-release function of 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) 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 G;
(8) 60mL mixed liquor F is added drop-wise in mixed liquor G under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor H;
(9) 360mL mixed liquor H being added drop-wise under 1000r/min stirring condition to 180mL mass fraction is, in 4.5% poly-vinyl alcohol solution, then under 1000r/min condition, to stir 8min, obtains mixed liquor I;
(10) poly-vinyl alcohol solution that is 0.75% by 1460mL mass fraction joins in mixed liquor I, 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 can obtain petroleum hydrocarbon contaminant to have the sorbing material of several functions.
The invention has the beneficial effects as follows, the sorbing material making has the function of slowly-releasing phosphorus function, absorption petroleum hydrocarbon, may float on the water surface simultaneously and has biodegradable, is applied to oil pollution scene and can cause secondary pollution and destruction to water ecological setting.
The specific embodiment
The invention provides a kind of sorbing material and preparation technology petroleum hydrocarbon contaminant to several functions, 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 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 G.
60mL mixed liquor F is added drop-wise in mixed liquor G under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor H; It is in 4.5% poly-vinyl alcohol solution that 360mL mixed liquor H is added drop-wise to 180mL mass fraction under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtains mixed liquor I; The poly-vinyl alcohol solution that is 0.75% by 1460mL mass fraction joins in mixed liquor I, 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 can obtain petroleum hydrocarbon contaminant to have the sorbing material of several functions.
Be that the sorbing material that petroleum hydrocarbon contaminant is had to a several functions 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 sorbing material that petroleum hydrocarbon contaminant is had to a several functions 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 sorbing material 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 sorbing material, 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 55 days, sorbing material Petroleum Hydrocarbon concentration does not detect, and after 150 days, the quality of sorbing material reduces by 53%.

Claims (1)

1. petroleum hydrocarbon contaminant is had to sorbing material and the preparation technology of several functions, 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) 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 G;
(8) 60mL mixed liquor F is added drop-wise in mixed liquor G under 1000r/min stirring condition, then under 1000r/min condition, stirs 8min, obtain mixed liquor H;
(9) 360mL mixed liquor H being added drop-wise under 1000r/min stirring condition to 180mL mass fraction is, in 4.5% poly-vinyl alcohol solution, then under 1000r/min condition, to stir 8min, obtains mixed liquor I;
(10) poly-vinyl alcohol solution that is 0.75% by 1460mL mass fraction joins in mixed liquor I, 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 can obtain petroleum hydrocarbon contaminant to have the sorbing material of several functions.
CN201310684751.5A 2013-12-12 2013-12-12 Petroleum hydrocarbon contaminant is had to sorbing material and the preparation technology of several functions Expired - Fee Related CN103691413B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001356A (en) * 2000-06-15 2002-01-08 Ebara Corp Method and apparatus for treating service water
CN102021128A (en) * 2010-07-21 2011-04-20 北京师范大学 Low-temperature-resistant petroleum degradation strains as well as culture method, culture medium and application thereof
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001356A (en) * 2000-06-15 2002-01-08 Ebara Corp Method and apparatus for treating service water
CN102021128A (en) * 2010-07-21 2011-04-20 北京师范大学 Low-temperature-resistant petroleum degradation strains as well as culture method, culture medium and application thereof
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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