CN1751995A - Organic modified zeolite used for porous medium sieve shore protection and its preparation method - Google Patents
Organic modified zeolite used for porous medium sieve shore protection and its preparation method Download PDFInfo
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- CN1751995A CN1751995A CN 200510044266 CN200510044266A CN1751995A CN 1751995 A CN1751995 A CN 1751995A CN 200510044266 CN200510044266 CN 200510044266 CN 200510044266 A CN200510044266 A CN 200510044266A CN 1751995 A CN1751995 A CN 1751995A
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Abstract
An organically modified zeolite used for the porous medium sieve to protect dam and dike and restore the ecological environment of river and dike or dam is prepared through loading natural zeolite particles in reactor, washing, proportionally adding NaCl solution, regulating pH=3-7, stirring, proportionally adding hexadecanetrimethyl ammonium bromide and Na-type zeolite, adding deionized water, stirring, washing with deionized water and natural drying in the air.
Description
(1) technical field
The present invention relates to a kind of organic modified zeolite that can be used for porous media sieve bank protection and preparation method thereof, belong to water surrounding embankments such as river course, lake, municipal water view and safeguard the recovery technique field.
(2) background technology
In recent years, in urban construction and river regulation, the urban river of this natural process of ecological revetment regulation new concept is suggested.
Shore protection medium sieve in the ecological revetment plays irreplaceable effect in ecological revetment.Play the stability that keeps bank slope, the effect that prevents erosion and guarantee flood control safety on the one hand, on the other hand, medium as exchange of substance between water and the riverbank soil, has good water-permeable, the energy absorb polluted matter, can link up aquatic ecosystem and TERRESTRIAL ECOSYSTEMS, the oneself who strengthens the river purifies and the self-recovery ability.Tradition shore protection medium sieve is generally selected quartz sand, vermiculite etc. for use, these materials can play the effect of shore protection, but the specific surface area of these materials own is less relatively, relatively poor to the absorption of the pollutent in river removal effect, therefore microorganism and ground flora can not be given full play in the soil of riverbank and the effect of pollutent-enrichment-original position degraded can not be realized the Degradation of pollutent.
(3) summary of the invention
Defective at prior art, the invention provides a kind of organic modified zeolite that can be used for porous media sieve bank protection and preparation method thereof, organic modified zeolite of the present invention can be strengthened medium sieve shore protection to suffering the repairing effect of polluted river and riverbank ecotope, can rebuild river and riparian ecosystem in the short period of time, improve the pollutant removal of medium sieve.
Technical scheme of the present invention is as follows:
Organic modified zeolite of the present invention is to be made by following method: at first with NaCl solution natural zeolite is carried out modification, make na-pretreated zeolite, use organic reagent cetyl trimethylammonium bromide (HDTMA) to its modification again, make organic modified zeolite.This organic modified zeolite can be used as the medium sieve of ecological revetment.
Organic modified zeolite preparation method of the present invention, concrete steps are as follows:
(1) preparation of na-pretreated zeolite
The natural zeolite that takes by weighing particle diameter and be 0.2cm-6cm places reactor, with the NaCl solution that adds 10～30g/L behind the distilled water wash, regulator solution pH value 3～7, stirs or vibration; Temperature be stir under 25 ℃ or the 12～48h that vibrates after pour out supernatant liquor; With obtaining na-pretreated zeolite behind the distilled water wash, 105 ℃ of following dry for standby.
(2) preparation of organic modified zeolite
Take by weighing the cetyl trimethylammonium bromide (HDTMA) of the outside surface cation exchange capacity that equals 50% na-pretreated zeolite and na-pretreated zeolite in reactor, add deionized water, vibration or stirring 8-12h with natural air drying behind the deionized water wash, obtain the HDTMA organic modified zeolite.
On the basis of the organic modified zeolite of system of the present invention (SMZ) ability of ammonia nitrogen in the removal water of still remaining valid, removing organic ability also has raising significantly than natural zeolite.Modified zeolite medium as embankment material sieves the exchange of carrying out material and energy between continuous and river, after its absorption is saturated, since enrichment own ammonia nitrogen and organism etc., help the increase of microorganism and ground flora density in the soil, pollutent is carried out degraded and absorbed, also realized simultaneously the in-situ regeneration of modified zeolite, it strengthens the effect of medium sieve to continue performance.
In the laboratory, adopt organic modified zeolite is carried out the adsorption cleaning test to the simulation river, under the condition of fulvic acid and phenols coexistence, organic modified zeolite demonstrates the good adsorption performance; When fulvic acid and ammonia nitrogen coexistence, also still very big to both adsorptive capacitys.
(4) embodiment
Embodiment 1:
(1) take by weighing a certain amount of particle diameter and place reactor for the 1.2mm zeolite, with the NaCl solution that adds 10g/L behind the distilled water wash, regulator solution pH value to 3 places constant temperature oscillator.In temperature is 25 ℃, pours out supernatant liquor behind the constant temperature vibration 12h; With behind the distilled water wash 105 ℃ of following dry for standby.
(2) take by weighing the HDTMA of the outside surface cation exchange capacity that equals 50% na-pretreated zeolite and na-pretreated zeolite in reactor, add a certain amount of deionized water, stir 8h after, with natural air drying behind the deionized water wash, thereby obtain the HDTMA organic modified zeolite.
Embodiment 2:
(1) take by weighing a certain amount of particle diameter and place reactor for the 6cm zeolite, with the NaCl solution that adds 30g/L behind the distilled water wash, regulator solution pH value to 5 places stirring tank; In temperature is 25 ℃, pours out supernatant liquor behind the stirring 12h; With behind the distilled water wash 105 ℃ of following dry for standby.
(3) take by weighing the HDTMA of the outside surface cation exchange capacity that equals 50% na-pretreated zeolite and na-pretreated zeolite in reactor, add a certain amount of deionized water, stir behind the 8h with natural air drying behind the deionized water wash, thereby obtain the HDTMA organic modified zeolite.
Embodiment 3:
(1) take by weighing a certain amount of particle diameter and place reactor for the 0.2cm zeolite, with the NaCl solution that adds 30g/L behind the distilled water wash, regulator solution pH value to 7 places constant temperature oscillator; In temperature is 25 ℃, pours out supernatant liquor behind the vibration 12h.With behind the distilled water wash 105 ℃ of following dry for standby.
(2) take by weighing the HDTMA of the outside surface cation exchange capacity that equals 50% na-pretreated zeolite and na-pretreated zeolite in reactor, add a certain amount of deionized water, stir behind the 12h with natural air drying behind the deionized water wash, thereby obtain the HDTMA organic modified zeolite.
Claims (2)
1, a kind of organic modified zeolite that can be used for porous media sieve bank protection, it is characterized in that, make by following method: at first natural zeolite is carried out modification with NaCl solution, make na-pretreated zeolite, use the organic reagent cetyl trimethylammonium bromide to the na-pretreated zeolite modification again, make organic modified zeolite.
2, a kind of preparation method who can be used for the organic modified zeolite of porous media sieve bank protection is characterized in that the preparation method is as follows:
(1) preparation of na-pretreated zeolite: with particle diameter is that the natural zeolite of 0.2cm-6cm places reactor, with the NaCl solution that adds 10～30g/L behind the distilled water wash, regulator solution pH value 3～7, stirs or vibration; In temperature is under 25 ℃, stir or the 12～48h that vibrates after pour out supernatant liquor; With obtaining na-pretreated zeolite behind the distilled water wash, 105 ℃ of following dry for standby;
(2) preparation of organic modified zeolite: take by weighing the cetyl trimethylammonium bromide of the outside surface cation exchange capacity that equals 50% na-pretreated zeolite and na-pretreated zeolite in reactor, add deionized water, vibration or stirring 8-12h, with natural air drying behind the deionized water wash, thereby obtain the cetyl trimethylammonium bromide organic modified zeolite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510044266 CN1751995A (en) | 2005-08-18 | 2005-08-18 | Organic modified zeolite used for porous medium sieve shore protection and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510044266 CN1751995A (en) | 2005-08-18 | 2005-08-18 | Organic modified zeolite used for porous medium sieve shore protection and its preparation method |
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| CN1751995A true CN1751995A (en) | 2006-03-29 |
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| CN 200510044266 Pending CN1751995A (en) | 2005-08-18 | 2005-08-18 | Organic modified zeolite used for porous medium sieve shore protection and its preparation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575218B (en) * | 2009-06-02 | 2011-09-28 | 北京师范大学 | Novel foam zeolite block and preparation method thereof |
| CN103521258A (en) * | 2012-06-29 | 2014-01-22 | 科莱恩产品（德国）有限公司 | Method for producing metal-doped zeolites |
| CN103539217A (en) * | 2013-11-06 | 2014-01-29 | 四川大学 | Zeolite modification method for synchronously removing cationic and anionic nitrogen and anionic phosphorus pollutants from sewage |
| CN104437391A (en) * | 2014-12-16 | 2015-03-25 | 郴州市金贵银业股份有限公司 | Modified zeolite as well as preparation method and application thereof |
| CN106734130A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of improving salinization soil red mud base modified soil renovation agent and preparation method thereof |
| CN106734129A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of sulfide modifier maize straw soil remediation conditioner and preparation method thereof |
| CN106734162A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of inexpensive soil-repairing agent doped with activated sludge and preparation method thereof |
-
2005
- 2005-08-18 CN CN 200510044266 patent/CN1751995A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575218B (en) * | 2009-06-02 | 2011-09-28 | 北京师范大学 | Novel foam zeolite block and preparation method thereof |
| CN103521258A (en) * | 2012-06-29 | 2014-01-22 | 科莱恩产品（德国）有限公司 | Method for producing metal-doped zeolites |
| CN103539217A (en) * | 2013-11-06 | 2014-01-29 | 四川大学 | Zeolite modification method for synchronously removing cationic and anionic nitrogen and anionic phosphorus pollutants from sewage |
| CN104437391A (en) * | 2014-12-16 | 2015-03-25 | 郴州市金贵银业股份有限公司 | Modified zeolite as well as preparation method and application thereof |
| CN106734130A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of improving salinization soil red mud base modified soil renovation agent and preparation method thereof |
| CN106734129A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of sulfide modifier maize straw soil remediation conditioner and preparation method thereof |
| CN106734162A (en) * | 2016-12-22 | 2017-05-31 | 胡自田 | A kind of inexpensive soil-repairing agent doped with activated sludge and preparation method thereof |
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