CN105152263A - Method for removing organic phosphorus compounds in pesticide wastewater by utilizing SDS-LDHs (sodium dodecyl sulfate-layered double hydroxides) - Google Patents
Method for removing organic phosphorus compounds in pesticide wastewater by utilizing SDS-LDHs (sodium dodecyl sulfate-layered double hydroxides) Download PDFInfo
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- CN105152263A CN105152263A CN201510578833.0A CN201510578833A CN105152263A CN 105152263 A CN105152263 A CN 105152263A CN 201510578833 A CN201510578833 A CN 201510578833A CN 105152263 A CN105152263 A CN 105152263A
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- dephosphorizing agent
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Abstract
The invention relates to a method for removing organic phosphorus compounds in pesticide wastewater by utilizing SDS-LDHs (sodium dodecyl sulfate-layered double hydroxides). The method is characterized by comprising the following steps: (1) synthesizing LDHs by adopting a coprecipitation method under the alkaline condition, modifying LDHs by utilizing SDS after baking synthesized LDHs at high temperature to synthesize a dephosphorization agent SDS-LDHs and then baking the dephosphorization agent SDS-LDHs at 105 DEG C for 8 hours; (2) adding the synthesized dephosphorization agent SDS-LDHs to the pesticide wastewater containing organic phosphorus to react so that the dephosphorization agent SDS-LDHs removes the organic phosphorus compounds in the pesticide wastewater containing organic phosphorus through adsorption; (3) renewing and recycling the dephosphorization agent SDS-LDHs after the dephosphorization agent SDS-LDHs is baked at high temperature for 4 hours. The method has the advantages that not only is environmental pollution relieved and phosphorus in the wastewater removed but also the dephosphorization can be recycled through resourceful treatment, so that the wastes are fully utilized, thus realizing resource recycling; the method is simple in treatment process and easy in condition control and has wide range of application and good treatment effects.
Description
Technical field
The present invention relates to a kind of method removing organo phosphorous compounds in agricultural chemicals waste water, particularly a kind of method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water.
Background technology
Phosphorus is the critical nutrients causing body eutrophication, and body eutrophication not only can cause algae overgrowing in water, and water body oxygen level can be made sharply to decline, and affects the hydrobiological existence such as fish.
Body eutrophication in lake, reservoir shows as " wawter bloom ", main harm is that water transparency declines, reoxygenation reduced capability, the kind of fish particularly has the fish of economic worth to reduce, after algae death, decomposition will consume dissolved oxygen, and the deficiency of dissolved oxygen and some toxic algae also can cause fish kills, the organism that cannot decompose will sink under water and cause lake, storehouse day by day to be deposited shoaling, accelerate the aging of lake; China inland and urban lakes, Reservoir Eutrophication phenomenon are general, and situation is quite serious, and the pollution in the large famous lake in Dian Chi, Chaohu and Taihu Lake three is especially noticeable.
Body eutrophication shows as in ocean " red tide ", and namely in waters, some planktonic organisms breed the water colour exception and water quality deterioration phenomenon that cause.In ocean, a certain or several planktonic organism explosive breeding or high aggregation under certain environment condition, cause discoloured water, affect and endanger other marine organisms normal existence, cause disastrous marine ecology unusual phenomenon.
LDHs compound great majority belong to non-toxic type, and existing agricultural chemicals waste water dephosphorization treatment technology mainly relies on chemical precipitation, also comprises charcoal absorption, chemical oxidization method etc.; Because LDHs compound and organophosphorus easily form supramolecule, LDHs compound and multiple organo phosphorous compounds co-precipitation can be made by regulation and control and realize the quick removal of organophosphorus.
The solid waste produced in agricultural chemicals waste water treating processes, wherein containing a large amount of organophosphoruss, composition is very complicated; But the solid slag after SDS-LDHs absorption has the features such as nontoxicity, not easily loss.
The research of SDS-LDHs recycling treatment process is more, because SDS-LDHs process organophosphorus pesticide wastewater is satisfactory for result, is the development trend of current Removal of Phosphorus in Wastewater.
Summary of the invention
The technical problem to be solved in the present invention is to provide one can realize resource recycling, and treatment process is simple and easy and treatment effect the is good SDS-LDHs that utilizes removes the method for organo phosphorous compounds in agricultural chemicals waste water.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water, its innovative point is, described method comprises the steps:
(1) in the basic conditions, adopt coprecipitation method to carry out synthetic hydrotalcite class intercalation material, be abbreviated as LDHs, after the LDHs high temperature synthesized bakes, recycling sodium lauryl sulphate, is abbreviated as SDS and carries out modification, synthesis dephosphorizing agent SDS-LDHs, then toasts 8h under the condition of 105 DEG C;
(2) react to containing the dephosphorizing agent SDS-LDHs adding synthesis in organophosphorus pesticide wastewater, the organo phosphorous compounds Adsorption that described SDS-LDHs dephosphorizing agent will contain in organophosphorus pesticide wastewater;
(3) after dephosphorizing agent SDS-LDHs high-temperature roasting 4h, namely renewable, recycle.
Further, the add-on of described step (1) SDS is 0.1% for mixed solution.
Further, described step (2) adds dephosphorizing agent SDS-LDHs, must control pH=4 ~ 10, and the dosage of described dephosphorizing agent SDS-LDHs is for mixed solution 0.05 ~ 0.2%.
Further, the temperature that described step (2) is reacted is 30 ~ 45 DEG C.
Further, described step (3) high temperature is 400 ~ 900 DEG C.
(1) the present invention adopts Co deposited synthesis LDHs, and carries out intercalation assembling modification by SDS to LDHs, obtains SDS-LDHs, reaches the object to agricultural chemicals waste water removing organophosphorus, eventually passes pyroprocessing SDS-LDHs dephosphorizing agent, namely renewable; The present invention by recycling treatment, not only alleviates the phosphorus in environmental pollution removing waste water, and dephosphorizing agent can recycle after high-temperature roasting, refuse is fully used, realizes the object of resource recycling.
(2) in the present invention, the method that SDS-LDHs is used for dephosphorization and regeneration simplifies treatment process, and condition is easy to control, and applied widely, treatment effect is good.
Embodiment
The following examples can make the present invention of professional and technical personnel's comprehend, but therefore do not limit the present invention among described scope of embodiments.
Embodiment
Utilize SDS-LDHs to remove a method for organo phosphorous compounds in agricultural chemicals waste water, it is characterized in that, described method comprises the steps:
(1) in the basic conditions, adopt coprecipitation method to carry out synthesis LDHs, after the LDHs high temperature of synthesis bakes, recycling mixed solution 0.1% SDS carry out modification, synthesize dephosphorizing agent SDS-LDHs, then under the condition of 105 DEG C, toast 8h;
(2) react to the dephosphorizing agent SDS-LDHs of synthesis containing add mixed solution in organophosphorus pesticide wastewater 0.1% at 30 ~ 45 DEG C, the organo phosphorous compounds Adsorption that described SDS-LDHs dephosphorizing agent will contain in organophosphorus pesticide wastewater, clearance can reach 99%; (offer 3 parallel condition, in the test-results of table 1 and table 2, can find out that the dosage of dephosphorizing agent SDS-LDHs is preferably 0.1%.）
Table 1: the test-results of the dosage screening of dephosphorizing agent SDS-LDHs
| SDS-LDHs dosage | 0.05% | 0.1% | 0.2% |
| Phosphorus content (mg/L) before process | 20 | 20 | 20 |
| Phosphorus content (mg/L) after process | 0.80 | 0.02 | 0.75 |
Table 2: the test-results of the dosage screening of dephosphorizing agent SDS-LDHs
| SDS-LDHs dosage | 0.05% | 0.1% | 0.2% |
| Phosphorus content (mg/L) before process | 500 | 500 | 500 |
| Phosphorus content (mg/L) after process | 1.5 | 0.2 | 0.90 |
(3) dephosphorizing agent SDS-LDHs is after 650 DEG C of high-temperature roasting 4h, namely renewable, recycles.(offer three parallel condition, in the test-results of table 3, can find out that maturing temperature is preferably 650 DEG C.）
Table 3: the test-results of maturing temperature screening
| Gu slag maturing temperature | 400℃ | 650℃ | 900℃ |
| Slag phosphorus content (mg/g) is consolidated after process | 15 | 15 | 15 |
| Solid slag phosphorus content (mg/g) after roasting | 1.1 | 0.05 | 0.75 |
Conclusion: when can to obtain SDS-LDHs dosage be 0.1% by the present embodiment, Removal of Phosphorus in Wastewater effect is best; When maturing temperature is 650 DEG C, the SDS-LDHs phosphorus content obtained is minimum, can recycle; Utilize SDS-LDHs resource utilization to remove the method for organo phosphorous compounds in agricultural chemicals waste water, organophosphorus clearance can reach 99%.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. utilize SDS-LDHs to remove a method for organo phosphorous compounds in agricultural chemicals waste water, it is characterized in that, described method comprises the steps:
(1) in the basic conditions, adopt coprecipitation method to carry out synthetic hydrotalcite class intercalation material, be abbreviated as LDHs, after the LDHs high temperature synthesized bakes, recycling sodium lauryl sulphate, is abbreviated as SDS and carries out modification, synthesis dephosphorizing agent SDS-LDHs, then toasts 8h under the condition of 105 DEG C;
(2) react to containing the dephosphorizing agent SDS-LDHs adding synthesis in organophosphorus pesticide wastewater, the organo phosphorous compounds Adsorption that described SDS-LDHs dephosphorizing agent will contain in organophosphorus pesticide wastewater;
(3) after dephosphorizing agent SDS-LDHs high-temperature roasting 4h, namely renewable, recycle.
2. the method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water according to claim 1, is characterized in that: the add-on of described step (1) SDS is 0.1% of mixed solution.
3. the method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water according to claim 1, it is characterized in that: described step (2) adds dephosphorizing agent SDS-LDHs, must control pH=4 ~ 10, the dosage of described dephosphorizing agent SDS-LDHs is 0.05 ~ 0.2% of mixed solution.
4. the method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water according to claim 1, is characterized in that: the temperature that described step (2) is reacted is 30 ~ 45 DEG C.
5. the method utilizing SDS-LDHs to remove organo phosphorous compounds in agricultural chemicals waste water according to claim 1, is characterized in that: described step (3) high temperature is 400 ~ 900 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510578833.0A CN105152263B (en) | 2015-09-14 | 2015-09-14 | A kind of method of organic phosphorus compound in utilization SDS LDHs removals agricultural chemicals waste water |
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| CN201510578833.0A CN105152263B (en) | 2015-09-14 | 2015-09-14 | A kind of method of organic phosphorus compound in utilization SDS LDHs removals agricultural chemicals waste water |
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| CN105152263B CN105152263B (en) | 2017-06-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159134A (en) * | 2017-07-03 | 2017-09-15 | 南昌大学 | The preparation of three-dimensional organic double-metal hydroxide and its application that non-ionic contaminants are removed |
| CN108525638A (en) * | 2018-04-11 | 2018-09-14 | 华东交通大学 | A kind of biomass carbon fiber/layered double hydroxide adsorption and dephosphorization material |
| CN114958388A (en) * | 2022-06-25 | 2022-08-30 | 武汉市秀谷科技有限公司 | Repairing agent for farmland soil organic matter pollution treatment, preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006272144A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Heavy metal insolubilizing material and method of treating heavy metal |
| CN102336461A (en) * | 2010-07-27 | 2012-02-01 | 中国科学院过程工程研究所 | Method for removing metal ions from aqueous solution by use of hydrotalcite |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272144A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Heavy metal insolubilizing material and method of treating heavy metal |
| CN102336461A (en) * | 2010-07-27 | 2012-02-01 | 中国科学院过程工程研究所 | Method for removing metal ions from aqueous solution by use of hydrotalcite |
Non-Patent Citations (1)
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| 金春姬等: ""改性膨润土粉末对克百威的吸附"", 《环境科学与技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159134A (en) * | 2017-07-03 | 2017-09-15 | 南昌大学 | The preparation of three-dimensional organic double-metal hydroxide and its application that non-ionic contaminants are removed |
| CN108525638A (en) * | 2018-04-11 | 2018-09-14 | 华东交通大学 | A kind of biomass carbon fiber/layered double hydroxide adsorption and dephosphorization material |
| CN108525638B (en) * | 2018-04-11 | 2021-05-14 | 华东交通大学 | Biomass carbon fiber/layered double hydroxide adsorption phosphorus removal material |
| CN114958388A (en) * | 2022-06-25 | 2022-08-30 | 武汉市秀谷科技有限公司 | Repairing agent for farmland soil organic matter pollution treatment, preparation method and application thereof |
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| CN105152263B (en) | 2017-06-16 |
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