CN102078794A - Mineral material for removing arsenic and preparation method thereof - Google Patents
Mineral material for removing arsenic and preparation method thereof Download PDFInfo
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- CN102078794A CN102078794A CN2009102384838A CN200910238483A CN102078794A CN 102078794 A CN102078794 A CN 102078794A CN 2009102384838 A CN2009102384838 A CN 2009102384838A CN 200910238483 A CN200910238483 A CN 200910238483A CN 102078794 A CN102078794 A CN 102078794A
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Abstract
The invention discloses a mineral material for absorbing and removing arsenic in water and a preparation method thereof. The mineral material is prepared by comprising the following steps: taking kaoline, siderite and the like as raw materials and adopting fruit shell, e.g. peanut shell, as a pore forming material; properly adding a small amount of binding materials; and carrying out chemical and high-temperature calcinating and activation. The mineral material comprises the following raw materials in percentage by weight: 35% to 40% of the kaoline, 35% to 40% of the siderite, 10% to 20% of the pore forming material and 5% to 10% of the binding material. In the invention, the preparation method of the arsenic removal material is simple and practicable, and is low in cost. Actual application test result proves that the arsenic removal material has a good effect of absorbing and removing the arsenic.
Description
Technical field
The present invention relates to a kind of mineral material that is used for the removal of water arsenic and preparation method thereof.
Background technology
At occurring in nature, arsenic content average out to 1.8mg/kg, the wherein general equal content of rock is between 1～2mg/kg; The equal content of soil is about 5mg/kg, but some soil can reach hundreds of mg/kg; Argillic horizon content is about 13mg/kg, but the argillic horizon in coastal some the local flusch layer of China, content is up to more than the 20mg/kg.
Excessive Arsenic can cause slow poisoning in the drinking water.At first, the arsenicalism that arsenic causes is taken the photograph and the drinking water arsenic sanitary standard of having worked out 0.05mg/L based on control through drinking water is excessive in countries in the world.In recent years, a large amount of epidemiology surveys show: arsenic may cause multiple cancers such as crowd's cutaneum carcinoma, carcinoma of urinary bladder and lung cancer, so arsenic has been defined as human carcinogenic substance by the international cancer tissue, and studies show that with some other disease higher correlation is also arranged.The World Health Organization (WHO) was increased to 0.01mg/L in 1993 with drinking water arsenic sanitary standard.Japan and Germany also are increased to 0.01mg/L respectively at 1993 and 1996 the arsenic standards of will drinking water.Canada is 0.025mg/L.EPA (USEPA) is according to crowd's epidemiological study result, announced maximum contaminant level (maximum contaminant level in the new standard January calendar year 2001, MCL) or maximum contaminant horizontal target (maximum contaminant level goal, MCLG) recommended value of 10 μ g/L, be that 10 μ g/Ls make final decision to arsenic sanitary standard revision in the drinking water in October, 2002, and this standard was formally implemented in the U.S. in 2006.Some state of the U.S. even standard is increased to 0.002mg/L.The threshold limit value of arsenic is 0.01mg/L in up-to-date " drinking water sanitary standard GB5749-2006 " revised draft of China, but has still continued to use the regulation of 0.05mg/L (" drinking water sanitary standard GB5749-85 ") in the past for small-sized centralized water supply in rural area and water dispersion type part.
But with regard to present achievement in research, the arsenic removal technology of China is all too loaded down with trivial details, and raw material, manufacture craft cost are higher, can not be widely used in drinking water and contain the poverty-stricken area that arsenic exceeds standard, and it is little that China is administered the engineering effect that contains the arsenic drinking water.Therefore, in a kind of efficient adsorbed water that can be cheap of research the sorbing material of arsenic to solve China's region arsenicalism imperative.The arsenic adsorbent material primary raw material of the present invention's preparation is siderite and kaolin, and they are natural geological materials, and are cheap and easy to get, have certain absorption property, after a series of chemistry and high-temperature calcination activation processing, arsenic is had good effect of removing.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of effect of removing arsenic, and a kind of mineral material that is used for the removal of underground water arsenic that can come into operation and preparation method thereof.
The mineral material that underground water arsenic is removed is realized with following technical proposals:
Earlier kaolin, siderite, pore-creating material, binding material are pulverized, kaolin and siderite are activated pore-creating material phosphoric acid activation with potassium hydroxide, again material is washed with water to neutrality, mix compression moulding by a certain percentage, put into the Muffle furnace high-temperature activation, make arsenic removal material.
The quality percentage composition is: kaolin 35～40%; Siderite 35～40%; Pore creating material (peanut shell etc.) 10～20%; Adhesives (cullet etc.) 5～10%;
Kaolin, siderite particle diameter are less than 140 orders, and pore-creating material, binding material particle diameter are less than 40 orders.
Concentration of potassium hydroxide is 0.1mol/L～0.5mol/L.
Phosphoric acid concentration is 40～60%, and soak time is 4～7h.
The high-temperature activation temperature is 800～1000 ℃.
Characteristics of the present invention: the invention provides a kind of mineral material that is used for the removal of underground water arsenic and preparation method thereof.This method is compared with previous methods has characteristics such as effect of removing arsenic is good, preparation technology simple, be easy to preparation, method is simple and feasible, can reuse, cost is low.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is described in further detail:
Embodiment 1
Kaolin, siderite, pore-creating material, binding material are pulverized, kaolin and siderite are soaked with 0.1mol/L potassium hydroxide, peanut shell washes material to neutrality with water with 40% phosphoric acid dip 3h again, and kaolin 40% in proportion; Siderite 40%; Pore-creating material 15%; Binding material 5% mixes, and 800 ℃ of activation of Muffle furnace are put in compression moulding, make arsenic removal material, and its static test arsenic removal efficiency is 85%.
Embodiment 2
Kaolin, siderite, pore-creating material, binding material are pulverized, kaolin and siderite are soaked with 0.3mol/L potassium hydroxide, peanut shell washes material to neutrality with water with 60% phosphoric acid dip 6h again, and kaolin 35% in proportion; Siderite 40%; Pore-creating material 25% mixes, and 1000 ℃ of activation of Muffle furnace are put in compression moulding, make arsenic removal material, and its static test arsenic removal efficiency is 92%.
Embodiment 3
Kaolin, siderite, pore-creating material, binding material are pulverized, kaolin and siderite are soaked with 0.2mol/L potassium hydroxide, peanut shell washes material to neutrality with water with 50% phosphoric acid dip 5h again, and kaolin 40% in proportion; Siderite 40%; Pore-creating material 15%; Binding material 5% mixes, and 900 ℃ of activation of Muffle furnace are put in compression moulding, make arsenic removal material, and its static test arsenic removal efficiency is 93%.
Claims (5)
1. one kind is used for the mineral material that water arsenic is removed, it is characterized in that: with kaolin and siderite is main raw material(s), uses shell such as peanut shell as pore creating material, and is aided with cullet etc. as adhesives system, by chemical activation and high-temperature calcination, prepare arsenic removal material.
2. the preparation method of arsenic removal material according to claim 1 is characterized in that, the quality percentage composition is:
Kaolin: 35～40%;
Siderite: 35～40%;
Pore-creating material: 10～20%;
Adhesives: 5～10%;
3. the preparation method of arsenic removal material according to claim 1, it is characterized in that: primary raw material kaolin and siderite particle diameter are less than 140 orders, and pore creating material and adhesives particle diameter are less than 40 orders.
4. the preparation method of arsenic removal material according to claim 1 is characterized in that: adopt potassium hydroxide and phosphoric acid to carry out chemical activation, wherein concentration of potassium hydroxide is 0.1mol/L～0.5mol/L; Phosphoric acid concentration is 40～60%, soak time 4～7h.
5. the preparation method of arsenic removal material according to claim 1, it is characterized in that: the high-temperature calcination activation temperature is 800～1000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910238483.8A CN102078794B (en) | 2009-11-27 | 2009-11-27 | Mineral material for removing arsenic and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910238483.8A CN102078794B (en) | 2009-11-27 | 2009-11-27 | Mineral material for removing arsenic and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102078794A true CN102078794A (en) | 2011-06-01 |
| CN102078794B CN102078794B (en) | 2014-04-02 |
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| CN200910238483.8A Expired - Fee Related CN102078794B (en) | 2009-11-27 | 2009-11-27 | Mineral material for removing arsenic and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935586A (en) * | 2016-05-26 | 2016-09-14 | 格丰环保科技有限公司 | Preparation method of arsenic removal material |
| CN106045553A (en) * | 2016-05-26 | 2016-10-26 | 格丰环保科技有限公司 | Method for preparing porous ceramic material for adsorbing heavy metals |
| CN109943340A (en) * | 2019-05-13 | 2019-06-28 | 河南川萍环保科技有限公司 | For administering the passivator and its preparation and application of high arsenic waste residue |
| CN111718001A (en) * | 2020-06-05 | 2020-09-29 | 北京森淼天成环保科技有限公司 | Preparation method of dephosphorization filler and application of dephosphorization filler in constructed wetland |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930283A1 (en) * | 1998-01-14 | 1999-07-21 | Shun'ichi Kumaoka | Porous ceramics provided with amorphous pore surfaces and method for treating drain water and waste liquid by the use of same |
| CN101249966A (en) * | 2007-01-25 | 2008-08-27 | 王道容 | Method for removing harmful elements Pb, Hg, As from aluminium magnesium silicate inorganic gel |
| CN101306848A (en) * | 2007-05-16 | 2008-11-19 | 北京化工大学 | Process for treating coking sewage |
-
2009
- 2009-11-27 CN CN200910238483.8A patent/CN102078794B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935586A (en) * | 2016-05-26 | 2016-09-14 | 格丰环保科技有限公司 | Preparation method of arsenic removal material |
| CN106045553A (en) * | 2016-05-26 | 2016-10-26 | 格丰环保科技有限公司 | Method for preparing porous ceramic material for adsorbing heavy metals |
| CN105935586B (en) * | 2016-05-26 | 2018-09-18 | 格丰环保科技有限公司 | The preparation method of arsenic removal material |
| CN106045553B (en) * | 2016-05-26 | 2019-01-04 | 格丰环保科技有限公司 | For adsorbing the preparation method of the porous ceramic film material of heavy metal |
| CN109943340A (en) * | 2019-05-13 | 2019-06-28 | 河南川萍环保科技有限公司 | For administering the passivator and its preparation and application of high arsenic waste residue |
| CN111718001A (en) * | 2020-06-05 | 2020-09-29 | 北京森淼天成环保科技有限公司 | Preparation method of dephosphorization filler and application of dephosphorization filler in constructed wetland |
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| Publication number | Publication date |
|---|---|
| CN102078794B (en) | 2014-04-02 |
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