CN102408151A - Sedimentary phosphate release inhibitor as well as preparation method and application thereof - Google Patents
Sedimentary phosphate release inhibitor as well as preparation method and application thereof Download PDFInfo
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- CN102408151A CN102408151A CN2011101978319A CN201110197831A CN102408151A CN 102408151 A CN102408151 A CN 102408151A CN 2011101978319 A CN2011101978319 A CN 2011101978319A CN 201110197831 A CN201110197831 A CN 201110197831A CN 102408151 A CN102408151 A CN 102408151A
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- release inhibitor
- sedimentary phosphate
- oxygen
- phosphate release
- sedimentary
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to the technical field of environmental protection, and particularly relates to a sedimentary phosphate release inhibitor and a preparation method thereof. The preparation method of the sedimentary phosphate release inhibitor comprises the following steps: dissolving stearic acid and polyethylene glycol 4000 in absolute ethanol or carbon tetrachloride and other organic solvents, adding a certain amount of peroxide and a weight increase material, stirring, transferring the mixture into a mold, preparing the mixture into the phosphate release inhibitor with a certain shape, and recovering the organic solvent. According to the invention, the phosphate release inhibitor is prepared in a water-free environment, thus the waste of available oxygen in the peroxide is avoided; and when used for biological repair of surface water and sediment, the phosphate release inhibitor can stably and effectively increase the content of oxygen in water body for a long period, so as to inhibit the release of sedimentary phosphate, and the ratio can be adjusted according to pollution treatment requirement so as to achieve an oxygen release period from a plurality of days to multiple years.
Description
Technical field
The present invention relates to environmental protection technical field, particularly the sedimentary phosphate release inhibitor.
Background technology
Eutrophication is one of main water pollution problems of facing of the world today.There are lake and reservoir about 40% to suffer eutrophication in various degree in the global range; In the later stage nineties 20th century, 10 lakes such as Taihu Lake, Dian Chi, Chaohu are in the serious rice-nutrient state.Nutrient concentrations such as the main and nitrogen of body eutrophication process, phosphorus are closely related, and are also relevant with temperature, dissolved oxygen levels, hydrodynamic condition.Because nutritive substance is too much in the eutrophication water; The a large amount of breedings of hydrobiont (mainly being algae), the respiration of algae and a large amount of oxygen of Decomposition consumption of dead algae; Cause water body to be in serious anoxic condition; And decomposite toxic substance, thereby cause serious adverse consequences to water quality.The water body dissolved oxygen becomes the restrictive factor of water pollution biological prosthetic.
The oxygen supply of water body technology mainly contains the artificial aeration, adds the oxygen release medicament (ozone, hydrogen peroxide and solid oxygen-releasing compound etc.) at present.Artificial aeration's oxygenation is a kind of effective means that improves dissolved oxygen concentration in the water body, but for regions such as contaminated underground water, wide lake surfaces, is inconvenient to carry out extensive aeration aerating.Add ozone and the peroxo-Hydrogen Energy improves the water body dissolved oxygen rapidly, but their unstable chemcial property property own, and the oxygen supply cost is too high.It is Magnesium Superoxol (MgO that solid is released oxide compound
2), calcium superoxide (CaO
2) etc.These superoxide can discharge oxygen with water reaction, improve the water body dissolved oxygen, thereby oxygen are provided for the aerobe of organic pollutant in the water.
CaO
2Reaction is as follows in malaria and water:
2CaO
2+2H
2O＝2Ca(OH)
2+O
2
Ca(OH)
2+CO
2＝CaCO
3+2H
2O
Because the oxygen supply of solid oxygen-releasing compound can directly be spread surface water body with it or is filled in the underground water; Aerator and secular electric energy supply need be installed; Also need not be transferred to other places administers; Therefore corresponding processing costs is relatively low, and the incomparable economic advantages of other oxygen-supplying technology are arranged.
But, the current utilization in the process that the solid oxygen-releasing compound repairs polluted underground water, adopt is mixed into suspension liquid with itself and water more, and is injected into underground reservoir through the enhancing perfusion mode.Although this method can improve contaminated phreatic dissolved oxygen concentration fast, cause oxygen-releasing compound a large amount of oxygen releases before getting into underground environment inevitably, cause the waste of oxygen-releasing compound; In addition, oxygen-releasing compound that directly adds and water rapid reaction, oxygen is short deenergized period, is unfavorable for secular oxygen supply.
With adding other chemical substances in the metal peroxides and processing particulate material, can effectively reduce its oxygen release speed in water, prolong the oxygen release cycle, improve the utilization ratio of dissolved oxygen.
The contriver prepares the sedimentary phosphate release inhibitor under anhydrous state, avoided the reaction of preparatory phase metal peroxides and water and the waste of the available oxygen that causes, improves the utilization ratio of metal peroxides and oxygen; This material relies on gravity to be deposited to the bottom rapidly after dropping into water body, and slowly release of oxygen equably can guarantee certain oxygen level for a long time to the water body release of oxygen; The oxygen release cycle that can not wait to the several years in tens days through the realization of adjustment material mixture ratio according to the needs of Pollution abatement; Stability of material is good, is difficult under the normality decomposing, and easy storing, validity period is long.When this sedimentary phosphate release inhibitor is used for polluted surface water, bed mud and phreatic biological prosthetic; Can greatly slow down the speed of reaction of metal peroxides and water; Improve the service efficiency and the life cycle of metal peroxides; The oxygen level that increases water body effectively steady in a long-term, thereby the release and the purifying water body of permanently effective inhibition pollutants in sediments.
Summary of the invention
Sedimentary phosphate release inhibitor preparation method: under 40～70 ℃ of water-baths, Triple Pressed Stearic Acid and Macrogol 4000 are dissolved in the organic solvents such as absolute ethyl alcohol or tetracol phenixin; Add a certain amount of metal peroxides and a certain proportion of weighted material; It is dry to be transferred to sphere, strip or tablet shape die for molding after fully stirring; Obtain the sedimentary phosphate release inhibitor of sphere, strip or figure of tablet, and reclaim organic solvent.
Form and mass percentage content: metal peroxides: 50%～80%, Triple Pressed Stearic Acid: 1%～10%, Macrogol 4000: 1%～10%, 40-200 order weighted material: 15%～30%, metal peroxides: organic solvent=0.5～3g/mL.
Wherein said metal peroxides comprises any one or boths' in calcium superoxide and the Magnesium Superoxol mixture.
Wherein said organic solvent is to comprise a kind of in the general commonly used organic solvent of absolute ethyl alcohol, tetracol phenixin.
Wherein said weighted material is a kind of or its mixture that comprises the general weighted material commonly used of silica sand, cement etc.
The present invention also further relates to the application of sedimentary phosphate release inhibitor of the present invention aspect the release of inhibition bed mud endogenous phosphorus.
Concrete operations can be carried out as follows:
Through manual work sow, instrument such as ship is added to the water body of required processing with sedimentary phosphate release inhibitor of the present invention, relies on action of gravity to be deposited to the bed mud surface.
Embodiment
Further specify the present invention with embodiment below, but the present invention is not limited.
Embodiment 1
Under 50 ℃ of water-baths, 1g Triple Pressed Stearic Acid and 1g Macrogol 4000 are dissolved in the 50mL tetracol phenixin; Add 40g calcium superoxide and 15g 80-120 order silica sand; It is dry fully to be transferred to tablet shape die for molding behind the stirring and evenly mixing, reclaims tetracol phenixin, obtains the sedimentary phosphate release inhibitor of figure of tablet.(CaO when adding this tablet shape sedimentary phosphate release inhibitor of 4.275g to every premium on currency
2Effective content is 3g/L), its average oxygen release speed is 9mg/ (Ld), theoretical oxygen release cycle T is 74 days.
Embodiment 2
Under 50 ℃ of water-baths, 1g Triple Pressed Stearic Acid and 1g Macrogol 4000 are dissolved in the 50mL absolute ethyl alcohol; Add 40g Magnesium Superoxol and 15g 80-120 order silica sand; Fully be transferred to shaping and drying in the spherical mould behind the stirring and evenly mixing, reclaim absolute ethyl alcohol, obtain spheric sedimentary phosphate release inhibitor.(MgO when adding this ball-type sedimentary phosphate release inhibitor of 4.275g to every premium on currency
2Effective content is 3g/L), its average oxygen release speed is 12mg/ (Ld), theoretical oxygen release cycle T is 71.5 days.
Embodiment 3
Under 60 ℃ of water-baths, 1g Triple Pressed Stearic Acid and 1g Macrogol 4000 are dissolved in the 6mL tetracol phenixin; Add 5g calcium superoxide and 3g 80-120 order silica sand; It is dry fully to be transferred to tablet shape die for molding behind the stirring and evenly mixing, reclaims tetracol phenixin, obtains the sedimentary phosphate release inhibitor of figure of tablet.(CaO when adding this tablet shape sedimentary phosphate release inhibitor of 6g to every premium on currency
2Effective content is 3g/L), its average oxygen release speed is 1.5mg/ (Ld), theoretical oxygen release cycle T is 444 days.
Embodiment 4
Under 50 ℃ of water-baths, 0.975g Triple Pressed Stearic Acid and 0.625g Macrogol 4000 are dissolved in the 50mL tetracol phenixin; Add 50g calcium superoxide and 11g 80-120 order silica sand; It is dry fully to be transferred to tablet shape die for molding behind the stirring and evenly mixing; Reclaim tetracol phenixin, obtain the sedimentary phosphate release inhibitor of figure of tablet.(CaO when adding this tablet shape sedimentary phosphate release inhibitor of 3.756g to every premium on currency
2Effective content is 3g/L), its average oxygen release speed is 18mg/ (Ld), theoretical oxygen release cycle T is 37 days.
Effect embodiment 1
The present invention tests the bed mud and the water body in East China University of Science youth river.Verify the oxygen release performance of sedimentary phosphate release inhibitor of the present invention and suppress the effect of the release of sedimentary phosphate.Through ship the sedimentary phosphate release inhibitor of the embodiment of the invention one is evenly spread youth river face (1kg/m
2), make its free setting to the bed mud surface, analyzing water body water sludge interface pH, DO, phosphoric acid salt change.
The result shows, add sedimentary phosphate release inhibitor of the present invention after, in the dissolved oxygen content 35 days all the time in 5～7mg/L scope; Average out to 6mg/L; Ability release of oxygen uniformly steady in a long-term effectively suppresses the release of sedimentary phosphate hydrochlorate to overlying water, satisfies the aerobic demand of mikrobe.The overlying water phosphate content is reduced to 0.3mg/L by 0.6mg/L, has suppressed not only that phosphoric acid salt discharges in water body in the bed mud, has reduced the phosphate concn in the water body simultaneously, and clearance has reached 50%.
Effect embodiment 2
The present invention tests the bed mud and the water body in river, Pu, shallow lake.Verify the oxygen release performance of sedimentary phosphate release inhibitor of the present invention and suppress the effect of the release of sedimentary phosphate.Through ship the sedimentary phosphate release inhibitor of the embodiment of the invention one is evenly spread the water surface (0.5kg/m
2), free setting is to the bed mud surface, and analyzing water body water sludge interface pH, DO, phosphoric acid salt change.
The result shows; After adding sedimentary phosphate release inhibitor of the present invention, in the water sludge interface dissolved oxygen content 35 days all the time in 4～5mg/L scope, can release of oxygen uniformly steady in a long-term; Effectively suppress of the release of sedimentary phosphate hydrochlorate, satisfy the aerobic demand of mikrobe to overlying water.The overlying water phosphate content is reduced to 0.5mg/L by 0.6mg/L, has suppressed not only that phosphoric acid salt discharges in water body in the bed mud, has reduced the phosphate concn in the water body simultaneously, and clearance has reached more than 16%.
Claims (4)
1. sedimentary phosphate release inhibitor, it is characterized in that: each constituent mass percentage composition of said sedimentary phosphate release inhibitor is: metal peroxides 50%～80%, Triple Pressed Stearic Acid 1%～10%, Macrogol 4000 1%～10%, 40-200 order weighted material 15%～30%; Described metal peroxides is meant the mixture that comprises any one or both in calcium superoxide and the Magnesium Superoxol; Described weighted material is a kind of or its mixture that comprises the general weighted material commonly used of silica sand, cement etc.
2. according to the said sedimentary phosphate release inhibitor of claim 1, it is characterized in that: each constituent mass percentage composition of this sedimentary phosphate release inhibitor is: metal peroxides 70%, Triple Pressed Stearic Acid 1.75%, Macrogol 4000 1.75%, 80-120 order silica sand 26.30%.
3. like the preparation method of claim 1,2 said sedimentary phosphate release inhibitors; It comprises the following steps: under 40～70 ℃ of water-baths, a certain amount of Triple Pressed Stearic Acid and Macrogol 4000 to be dissolved in the organic solvents such as absolute ethyl alcohol or tetracol phenixin; Add a certain amount of metal peroxides and weighted material; It is dry to be transferred to sphere, strip or tablet shape die for molding after fully stirring, and obtains the sedimentary phosphate release inhibitor of sphere, strip or figure of tablet, and reclaims organic solvent; Metal peroxides wherein: organic solvent=0.5～3g/mL, described organic solvent are to comprise a kind of in the organic solvent general commonly used of absolute ethyl alcohol, tetracol phenixin.
4. according to the said sedimentary phosphate release inhibitor of claim 1, it is characterized in that: the oxygen release cycle that can not wait to the several years in tens days through the realization of adjustment material mixture ratio according to the needs of Pollution abatement; After sedimentary phosphate release inhibitor of the present invention is added to the water body of required processing, can effectively suppress the release of sedimentary phosphate for a long time to the water body release of oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101978319A CN102408151A (en) | 2011-07-15 | 2011-07-15 | Sedimentary phosphate release inhibitor as well as preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101978319A CN102408151A (en) | 2011-07-15 | 2011-07-15 | Sedimentary phosphate release inhibitor as well as preparation method and application thereof |
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| CN102408151A true CN102408151A (en) | 2012-04-11 |
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| CN2011101978319A Pending CN102408151A (en) | 2011-07-15 | 2011-07-15 | Sedimentary phosphate release inhibitor as well as preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730821A (en) * | 2012-07-17 | 2012-10-17 | 中国石油天然气集团公司 | Oxygen release material added with oily sludge pyrolysis residues |
| CN103214084A (en) * | 2013-05-03 | 2013-07-24 | 华东理工大学 | Compound preparation for environmental water body remediation as well as preparation method and application thereof |
| CN104229999A (en) * | 2014-09-15 | 2014-12-24 | 南京化工职业技术学院 | Filler used for constructed wetland water treatment and preparation method of filler |
| CN106186329A (en) * | 2016-08-30 | 2016-12-07 | 苏州科技大学 | A kind of method injecting adsorbing material control internal phosphorus release to bed mud |
| CN108178320A (en) * | 2018-01-12 | 2018-06-19 | 南京工业大学 | A kind of microbiological fuel cell constructed wetland device and effluent purification method |
| CN113003872A (en) * | 2021-03-05 | 2021-06-22 | 华东理工大学 | Integrated treatment agent for centralized control of phosphorus and slow release of oxygen, and preparation and application thereof |
| CN114477355A (en) * | 2022-01-06 | 2022-05-13 | 中国电建集团华东勘测设计研究院有限公司 | Permeable reaction wall capable of improving river bank dirt purification capacity and coupling oxygenation and adsorption and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301237A (en) * | 1998-05-14 | 2001-06-27 | 彼得·泽尔 | Method for treating waters, soils, sediments and/or sludges |
-
2011
- 2011-07-15 CN CN2011101978319A patent/CN102408151A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301237A (en) * | 1998-05-14 | 2001-06-27 | 彼得·泽尔 | Method for treating waters, soils, sediments and/or sludges |
Non-Patent Citations (3)
| Title |
|---|
| 刘涉江等: "CPC /CaO2氧缓释复合材料的制备及其释氧性能探讨", 《环境工程学报》 * |
| 孙士权等: "东洞庭湖底泥的释磷特性", 《长沙理工大学学报( 自然科学版)》 * |
| 陈艳美等: "高锰酸钾缓释剂的制备及其性能研究", 《环境工程学报》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730821A (en) * | 2012-07-17 | 2012-10-17 | 中国石油天然气集团公司 | Oxygen release material added with oily sludge pyrolysis residues |
| CN103214084A (en) * | 2013-05-03 | 2013-07-24 | 华东理工大学 | Compound preparation for environmental water body remediation as well as preparation method and application thereof |
| CN103214084B (en) * | 2013-05-03 | 2015-08-12 | 华东理工大学 | A kind of compound formulation for environment water reparation and its preparation method and application |
| CN104229999A (en) * | 2014-09-15 | 2014-12-24 | 南京化工职业技术学院 | Filler used for constructed wetland water treatment and preparation method of filler |
| CN106186329A (en) * | 2016-08-30 | 2016-12-07 | 苏州科技大学 | A kind of method injecting adsorbing material control internal phosphorus release to bed mud |
| CN106186329B (en) * | 2016-08-30 | 2019-07-12 | 苏州科技大学 | A method of internal phosphorus release is controlled to bed mud injection adsorbent material |
| CN108178320A (en) * | 2018-01-12 | 2018-06-19 | 南京工业大学 | A kind of microbiological fuel cell constructed wetland device and effluent purification method |
| CN108178320B (en) * | 2018-01-12 | 2020-06-19 | 南京工业大学 | Microbial fuel cell artificial wetland device and sewage purification method |
| CN113003872A (en) * | 2021-03-05 | 2021-06-22 | 华东理工大学 | Integrated treatment agent for centralized control of phosphorus and slow release of oxygen, and preparation and application thereof |
| CN114477355A (en) * | 2022-01-06 | 2022-05-13 | 中国电建集团华东勘测设计研究院有限公司 | Permeable reaction wall capable of improving river bank dirt purification capacity and coupling oxygenation and adsorption and application |
| CN114477355B (en) * | 2022-01-06 | 2023-12-29 | 中国电建集团华东勘测设计研究院有限公司 | Oxygenation and adsorption coupled permeation reaction wall capable of improving river bank pollution cleaning capacity and application |
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Application publication date: 20120411 |