CN108452764A - The adsorbent of halide ion in a kind of removal waste water - Google Patents
The adsorbent of halide ion in a kind of removal waste water Download PDFInfo
- Publication number
- CN108452764A CN108452764A CN201710603887.7A CN201710603887A CN108452764A CN 108452764 A CN108452764 A CN 108452764A CN 201710603887 A CN201710603887 A CN 201710603887A CN 108452764 A CN108452764 A CN 108452764A
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- China
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- waste water
- adsorbent
- ion
- halide ion
- amount
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
Abstract
The sorbing material of halide ion in the removal waste water that the present invention provides a kind of based on zinc-iron binary hydrotalcite.It is (5 33) mg/g that it, which adsorbs the amount of fluorine ion, and the amount of chlorion is (40 106) mg/g, and the amount of bromide ion is (60 158) mg/g, and the amount of iodide ion is (150 269) mg/g.Zinc-iron ratio is (1 4) in zinc-iron binary hydrotalcite:1, the specific method of the halide ion in waste water solution is adsorbed as adsorbent is：Zinc-iron binary hydrotalcite is prepared using the method for co-precipitation；Mass ratio by contained halide ion in adsorbent and waste water is (0.2 7)：The adsorbent is added in waste water solution, magnetic agitation by 1 ratio, and reaction stirring (0.5 2) h, filters out adsorbent at a temperature of 25 DEG C, detects the amount of remaining halide ion in waste water；This method is suitable for the waste water aqueous solution of a concentration of (0.1 1) M of halide ion.
Description
Technical field
The present invention relates to water-treatment technology fields, and in particular to removes zinc-iron binary neatly masonry adsorbent in waste water
The application of halide ion.
Background technology
With China's expanding economy, China's water pollution situation is increasingly severe.In such water environment, people
Higher and higher to the degree of concern of water pollution treatment technology, the removal technology of the pollutants such as COD, BOD, nitrogen, phosphorus, heavy metal obtains
Great development.At present other than fluoride has corresponding limited value of discharge standard, there is no arrange for other common halogen ions
Limitation is put, inadequate to its attention rate, corresponding removal technology is relatively fewer.But halide ion is difficult by micro- life in industrial wastewater
Object is utilized, and high concentration waste water containing halogen is such as not added with improvement and is directly discharged into rivers, can be destroyed the balance of nature of water body, be made water
Matter deteriorates, and does great damage to aquaculture, freshwater resources, even can polluted underground water and drinking water source when serious.Therefore
The removal technology for studying halide ion is all meaningful to ecological and environmental protection.
The method for removing halide ion in water removal at present mainly has:Solvent extraction technology, anion-exchange resin method, compound wadding
The methods of solidifying agent flocculation treatment.Solvent extraction technology mainly utilizes compound molten in the solvent of two kinds immiscible (or slightly soluble)
The difference of solution degree or distribution coefficient makes compound be transferred in another solvent from a kind of solvent.Pass through repeated multiple times extraction
It taking, the compound of the overwhelming majority can be extracted, the halide ion cost removed in waste water in this way is relatively high,
It is economically not cost-effective.Anion-exchange resin method, composite flocculation agent coagulating/flocculating method for processing essence are removed by way of absorption
Fall the halide anion in waste water, research emphasis is in the efficiency-cost ratio for improving sorbing material at present.
Stratiform hydrotalcite (LDH) nano material be by positively charged main layer board (metal hydroxides) and interlayer the moon from
Made of interaction assembling of the son by non-covalent bond.The layer structure feature of hydrotalcite make its interlayer anion can with it is various
Anion swaps.At present document report is had no with the application of halide ion in zinc-iron hydrotalcite Adsorption waste water.
Invention content
The purpose of the present invention is to provide a kind of to remove halide ion in waste water based on zinc-iron binary hydrotalcite (LDH)
Efficient remover.
The purpose of the present invention is achieved through the following technical solutions：A. adsorption reaction：By institute's phosphoric acid in adsorbent and waste water
The mass ratio of root is (0.2-7)：The adsorbent is added in waste water solution, magnetic agitation by 1 ratio, at a temperature of 25 DEG C
Reaction stirring (0.5-2) h, filters out adsorbent, detects the amount of remaining halide ion in waste water；This method is suitable for halide ion
A concentration of (0.1-1) M waste water aqueous solution.(whether also having b technical solutions)
Preferably, the zinc-iron ratio in the waste water of a concentration of (0.1-0.5) M of halide ion, added is 1:1 binary water
Talcum can reach the maximal absorptive capacity of the absorption halide ion of adsorbent.
The method that the present invention is combined by physics with chemical action is realized most by adjusting the ratio of zinc and ferro element
Halide ion in the Adsorption waste water of big degree.
Specific implementation mode
Embodiment 1
Prepare Zn1The absorption property of Fe-LDH and halide ion is tested
The ferric nitrate of the zinc nitrate of 23.81g and 32.32g is dissolved into the water of 300mL, solution A is named as.By the carbon of 40.1g
The sodium hydroxide of sour sodium and 30g are dissolved into the water of 300mL, are named as solution B.By solution A and solution B with 20mL/min's
Speed is added drop-wise in the deionized water of carbon dioxide removal simultaneously, forms reaction solution, by the dropwise addition speed for adjusting solution A and solution B
Degree, remains at (6 ± 0.3) by the pH of deionized water, drips crystallization 6h at ambient temperature, centrifugal drying obtains powder
The Zn of last shape1Fe-LDH。
By a certain amount of Zn1Fe-LDH is distributed in the 200mL deionized waters of certain content of halide ions, is mixed
Uniformly, 0.5h is stirred, adsorbent is filtered out, the amount of remaining halide ion is surveyed with inductively-coupled plasma spectrometer, by changing
It calculates, calculates the amount of adsorbent absorption halide ion.Specific experiment parameter and measurement result are shown in Table 1.
1 Zn of table1Fe-LDH as adsorbent adsorb waste water in halide ion when specific experiment parameter and absorption halogen from
The amount of son.
Embodiment 2
Prepare Zn4The absorption property of Fe-LDH and phosphate radical is tested
The ferric nitrate of the nickel nitrate of 95.25g and 32.32g is dissolved into the water of 300mL, solution A is named as.By the carbon of 40.1g
The sodium hydroxide of sour sodium and 30g are dissolved into the water of 300mL, are named as solution B.By solution A and solution B with 20mL/min's
Speed is added drop-wise in the deionized water of carbon dioxide removal simultaneously, forms reaction solution, by the dropwise addition speed for adjusting solution A and solution B
Degree, remains at (6 ± 0.3) by the pH of deionized water, drips crystallization 6h at ambient temperature, centrifugal drying obtains powder
The Zn of last shape4Fe-LDH。
By a certain amount of Zn4Fe-LDH is distributed in the 200mL deionized waters of certain content of halide ions, is mixed
Uniformly, certain time is stirred, adsorbent is filtered out, the amount of remaining halide ion is surveyed with inductively-coupled plasma spectrometer, is led to
Conversion is crossed, the amount of adsorbent absorption halide ion is calculated.Specific experiment parameter and measurement result are shown in Table 2.
2 Zn of table4Fe-LDH as adsorbent adsorb waste water in halide ion when specific experiment parameter and absorption halogen from
The amount of son.
Claims (4)
1. the adsorbent of halide ion in a kind of removal waste water, it is characterised in that：Halide ion be common fluorine ion, chlorine from
Son, bromide ion, iodide ion, adsorbent are zinc-iron binary hydrotalcite.
2. the amount of the adsorbent of halide ion according to claim 1, absorption fluorine ion is (5-33) mg/g, chlorion
Amount be (40-106) mg/g, the amount of bromide ion is (60-158) mg/g, and the amount of iodide ion is (150-269) mg/g.
3. zinc-iron binary hydrotalcite adsorbent according to claim 1, wherein zinc-iron ratio are (1-4):1.
4. the purposes of zinc-iron binary hydrotalcite adsorbent according to claim 1, it is characterized in that being inhaled as adsorbent
The specific method of halide ion in attached waste water solution is：Zinc-iron binary hydrotalcite is prepared using the method for co-precipitation；By absorption
The mass ratio of agent and contained halide ion in waste water is (0.2-7)：The adsorbent is added in waste water solution, magnetic by 1 ratio
Power stirs, and reaction stirring (0.5-2) h, filters out adsorbent at a temperature of 25 DEG C, detects the amount of remaining halide ion in waste water；
This method is suitable for the waste water aqueous solution of a concentration of (0.1-1) M of halide ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603887.7A CN108452764B (en) | 2017-07-21 | 2017-07-21 | Adsorbent for removing halogen ions in wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603887.7A CN108452764B (en) | 2017-07-21 | 2017-07-21 | Adsorbent for removing halogen ions in wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108452764A true CN108452764A (en) | 2018-08-28 |
| CN108452764B CN108452764B (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710603887.7A Active CN108452764B (en) | 2017-07-21 | 2017-07-21 | Adsorbent for removing halogen ions in wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847703A (en) * | 2019-01-14 | 2019-06-07 | 中国环境科学研究院 | A kind of sodium secondary alkyl sulfonate modified hydrotalcite adsorbent and its preparation method and application |
| CN115106053A (en) * | 2021-03-17 | 2022-09-27 | 中国疾病预防控制中心辐射防护与核安全医学所(国家卫生健康委核事故医学应急中心) | Composite adsorption material and preparation method and application thereof |
| CN115140779A (en) * | 2022-05-05 | 2022-10-04 | 中南大学 | Hexagonal chlorine intercalation cobalt-aluminum hydrotalcite-like defluorination material and preparation and application thereof |
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| CN1792822A (en) * | 2006-01-05 | 2006-06-28 | 浙江大学 | Zinc iron type hydrotalcite and preparation process thereof |
| JP2008080268A (en) * | 2006-09-28 | 2008-04-10 | Sanyo Electric Co Ltd | Apparatus for removing impurity |
| CN101456617A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | Method for removing bromate ion in drinking water |
| CN101456616A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | Method for removing perchlorate in drinking water |
| CN103833084A (en) * | 2012-11-20 | 2014-06-04 | 大连鑫五洲石油仪器有限公司 | Cu-Fe layered composite material |
| CN106179174A (en) * | 2016-07-07 | 2016-12-07 | 同济大学 | For layered composite metal hydroxides removing water pollutant and its preparation method and application |
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2017
- 2017-07-21 CN CN201710603887.7A patent/CN108452764B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1792822A (en) * | 2006-01-05 | 2006-06-28 | 浙江大学 | Zinc iron type hydrotalcite and preparation process thereof |
| JP2008080268A (en) * | 2006-09-28 | 2008-04-10 | Sanyo Electric Co Ltd | Apparatus for removing impurity |
| CN101456617A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | Method for removing bromate ion in drinking water |
| CN101456616A (en) * | 2009-01-04 | 2009-06-17 | 上海大学 | Method for removing perchlorate in drinking water |
| CN103833084A (en) * | 2012-11-20 | 2014-06-04 | 大连鑫五洲石油仪器有限公司 | Cu-Fe layered composite material |
| CN106179174A (en) * | 2016-07-07 | 2016-12-07 | 同济大学 | For layered composite metal hydroxides removing water pollutant and its preparation method and application |
Non-Patent Citations (1)
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| FREDERICK L.THEISS等: "A review of the removal of anions and oxyanions of the halogen elements from aqueous solution by layered double hydroxides", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847703A (en) * | 2019-01-14 | 2019-06-07 | 中国环境科学研究院 | A kind of sodium secondary alkyl sulfonate modified hydrotalcite adsorbent and its preparation method and application |
| CN115106053A (en) * | 2021-03-17 | 2022-09-27 | 中国疾病预防控制中心辐射防护与核安全医学所(国家卫生健康委核事故医学应急中心) | Composite adsorption material and preparation method and application thereof |
| CN115106053B (en) * | 2021-03-17 | 2024-04-09 | 中国疾病预防控制中心辐射防护与核安全医学所(国家卫生健康委核事故医学应急中心) | Composite adsorption material and preparation method and application thereof |
| CN115140779A (en) * | 2022-05-05 | 2022-10-04 | 中南大学 | Hexagonal chlorine intercalation cobalt-aluminum hydrotalcite-like defluorination material and preparation and application thereof |
| CN115140779B (en) * | 2022-05-05 | 2023-09-08 | 中南大学 | Hexagonal chlorine intercalation cobalt-aluminum hydrotalcite defluorination material and preparation and application thereof |
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| CN108452764B (en) | 2020-09-15 |
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