CN1214846C - Artificial irom base manganese sand and its producing method - Google Patents
Artificial irom base manganese sand and its producing method Download PDFInfo
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- CN1214846C CN1214846C CN 03135571 CN03135571A CN1214846C CN 1214846 C CN1214846 C CN 1214846C CN 03135571 CN03135571 CN 03135571 CN 03135571 A CN03135571 A CN 03135571A CN 1214846 C CN1214846 C CN 1214846C
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Abstract
The present invention discloses an artificial iron base manganese sand for purifying drinking water and a fabricating method thereof. For the manganese sand, two layers of coatings are coated on the surfaces of granular base materials of river sand or sea sand by a chemical method, the inner layer is iron base compounds, and the outer layer is manganese bioxide. The manufacture and the operating cost of the artificial iron base manganese sand of the present invention are lower than those of natural manganese sand, and the ability in filtering out iron ions and manganese ions in drinking water is greatly larger than that of the natural Manganese sand. The artificial iron base manganese sand has the great advantages of long-time use and no need of regeneration. Accordingly, the artificial iron base manganese sand is a filtering material for drinking water purification, which has a good development prospect.
Description
The present invention relates to a kind of artificial iron-based manganese sand, be applicable to and drink water purification.
As everyone knows, the many filtrates that promptly apply manganese dioxide with natural manganese sand or artificial manganese sand of contained iron ion and manganese ion come filtering in the drinking water, coating manganese dioxide all is the oxidation by divalent manganesetion on the filtrate base material, the oxidant difference that different are to use, useful potassium permanganate as WO 02/20127; Useful oxidizer containing chlorine, open 2002-35576 (P2002-35576A) as the spy, the artificial manganese sand made from these methods has a common shortcoming, promptly needs according to operating position manganese dioxide layer to be carried out irregular regeneration, has increased operation easier and operating cost virtually.
The object of the present invention is to provide a kind of novel artificial iron-based manganese sand, can use for a long time in the purification process of this manganese sand contained iron ion and manganese ion in the filtering drinking water, needn't regenerate.
Another object of the present invention is to provide a kind of preparation method of above-mentioned artificial iron-based manganese sand.
Artificial iron-based manganese sand of the present invention is to be that granular river sand or extra large sand base-material surface scribble two layers of coating, and internal layer is a Fe-base compound, and skin is a manganese dioxide.
Artificial iron-based manganese sand of the present invention, the particle diameter of used granular river sand or extra large sand base-material is the 0.6-2.0 millimeter.
The preparation method of the artificial iron-based manganese of the present invention sand comprises the steps: (1) with hydrochloric acid or sulfuric acid cleaned river sand or extra large sand, washing, airing; (2) in retort, be that the copperas solution of 0.01-8% soaked washing, airing 8-12 hour with concentration; (3) be that the liquor potassic permanganate of 0.02-3.0% is poured retort and river sand or extra large sand into and mixed with concentration, the ammonia spirit that slowly adds concentration and be 0.01-5% soaks, and rotational response jar slowly, and the time is 8-24 hour; (4) soak of draining, the clear water flushing, to the flushing liquor pH value be 6-7; (5) take out airing and be finished product.
The preferred version of the preparation method of the artificial iron-based manganese of the present invention sand is: (1) washes airing with hydrochloric acid or sulfuric acid cleaned river sand or extra large sand; (2) in retort, be that the copperas solution of 1-5% soaked washing, airing 8 hours with concentration; (3) be that the liquor potassic permanganate of 0.3-1.5% is poured retort and river sand or extra large sand into and mixed with concentration, the ammonia spirit that slowly adds people's concentration and be 0.5-3% soaks, and rotational response jar slowly, and the time is 8-16 hour; (4) soak of draining, the clear water flushing, to flushing liquor-pH value be 6-7; (5) take out airing and be finished product.
The preferred plan of the preparation method of the artificial iron-based manganese of the present invention sand is: (1) with 150 kilograms in hydrochloric acid or sulfuric acid cleaned river sand or extra large sand, washing, cool in; (2) concentration is that 1.5% copperas solution soaked 8 hours washing, airing for 50 liters in retort; (3) be that 0.5% liquor potassic permanganate is poured retort and river sand or extra large sand into for 40 liters and mixed with concentration, slowly add 10 liters of concentration and be 0.5% ammonia spirit and soak, and rotational response jar slowly, the time is 12 hours; (4) soak of draining, the clear water flushing, to the flushing liquor pH value be 6-7; (5) take out airing and be finished product.
Compare with natural manganese sand, there is a manganese dioxide active membrane that purity is very high on the artificial iron-based manganese of the present invention sand surface, the iron ion ability is far longer than natural manganese sand in the filtering water, and through the experiment contrast, the natural manganese of ferromanganese ion energy force rate was husky big more than 30% during the sand filtration of the artificial iron-based manganese of the present invention dewatered.And unit price is lower than natural manganese sand, and is with low cost.Unit weight is lower than natural manganese sand, is easy to back scrubbing, is convenient to operation.
As if the artificial iron-based manganese of the present invention sand in the process of ferromanganese ion, only plays a catalytic action at purifying drinking water in the filtering water, and the manganese dioxide on artificial manganese sand top layer does not only consume, and also slightly increases.Therefore can use for a long time and needn't regenerate, this is the great advantage of the artificial iron-based manganese of the present invention sand.In order to confirm, the manganese content of the artificial iron-based manganese sand after untapped artificial iron-based manganese sand and the long-term use has still been done analysis, the results are shown in Table 1.
Top layer manganese dioxide consumption situation contrast before and after the artificial iron-based manganese of table 1 the present invention sand uses
Annotate: sample A: still untapped artificial iron-based manganese sand.Sample B: use two and half artificial iron-based manganese sand.
From table 1 data as can be seen, in the ferromanganese ion use, its surperficial manganese dioxide film does not consume the artificial iron-based manganese of the present invention sand really in filtering water, has also obtained improving and thickening.Therefore can reach a conclusion, the artificial iron-based manganese of the present invention sand really can use steady in a long-term, needn't regenerate.
Embodiment
Available following steps are made the artificial iron-based manganese of the present invention sand: (1) is with 150 kilograms in hydrochloric acid or sulfuric acid cleaned river sand, washing, airing; (2) in retort, be that 1.5% copperas solution soaked 8 hours washing, airing for 50 liters with concentration; (3) be that 40 liters of 0.5% liquor potassic permanganates are poured retort into and river sand mixes with concentration, slowly add 10 liters of concentration and be 0.5% ammonia spirit and soak, and rotational response jar slowly, the time is 12 hours; (4) soak of draining, the clear water flushing, to the flushing liquor pH value be 6-7; (5) take out airing and be finished product.
Claims (5)
1. artificial iron-based manganese sand that is used for drink water purifying, base is characterised in that there are two layers of coating on granular river sand or extra large sand base-material surface, and internal layer is a Fe-base compound, and skin is a manganese dioxide.
2. artificial iron-based manganese sand as claimed in claim 1, the particle diameter that it is characterized in that granular river sand or extra large sand base-material is the 0.6-2.0 millimeter.
3. the preparation method of artificial iron-based manganese sand as claimed in claim 1 is characterized in that comprising the steps: (1) with hydrochloric acid or sulfuric acid cleaned river sand or extra large sand, washing, airing; (2) in retort, be that the copperas solution of 0.01-8% soaked washing, airing 8-12 hour with concentration; (3) be that the liquor potassic permanganate of 0.02-3.0% is poured retort and river sand or extra large sand into and mixed with concentration, the ammonia spirit that slowly adds concentration and be 0.01-5% soaks, and rotational response jar slowly, and the time is 8-24 hour; (4) soak of draining, the clear water flushing, to the flushing liquor pH value be 6-7; (5) take out airing and be finished product.
4. the preparation method of artificial iron-based manganese sand as claimed in claim 3, the concentration that it is characterized in that described copperas solution is 1-5%, the time of soaking with this copperas solution is 8 hours, the concentration of described liquor potassic permanganate is 0.3-1.5%, add ammonia spirit concentration be 0.5-3%, the time of rotational response jar is 8-16 hour.
5. the preparation method of artificial iron-based manganese sand as claimed in claim 4 is characterized in that: (1) is with 150 kilograms in hydrochloric acid or sulfuric acid cleaned river sand or extra large sand, washing, airing; (2) in retort, be that 1.5% copperas solution soaked 8 hours washing, airing for 50 liters with concentration; (3) be that 0.5% liquor potassic permanganate is poured retort and river sand or extra large sand into for 40 liters and mixed with concentration, slowly add 10 liters of concentration and be 0.5% ammonia spirit and soak, and rotational response jar slowly, the time is 12 hours; (4) soak of draining, the clear water flushing, to the flushing liquor pH value be 6-7; (5) take out airing and be finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135571 CN1214846C (en) | 2003-08-11 | 2003-08-11 | Artificial irom base manganese sand and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135571 CN1214846C (en) | 2003-08-11 | 2003-08-11 | Artificial irom base manganese sand and its producing method |
Publications (2)
| Publication Number | Publication Date |
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| CN1473645A CN1473645A (en) | 2004-02-11 |
| CN1214846C true CN1214846C (en) | 2005-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03135571 Expired - Fee Related CN1214846C (en) | 2003-08-11 | 2003-08-11 | Artificial irom base manganese sand and its producing method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292990C (en) * | 2004-11-25 | 2007-01-03 | 上海自来水市北科技有限公司 | Prepn and application of iron-coating aluminium sand capable of eliminating organic matter from water |
| CN102553349A (en) * | 2010-12-28 | 2012-07-11 | 罗兴富 | Preparation method of multifunctional composite filter material |
| CN106512550A (en) * | 2016-11-10 | 2017-03-22 | 河南科技学院 | Chemical filter and method for preparing chemical filter material thereof |
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- 2003-08-11 CN CN 03135571 patent/CN1214846C/en not_active Expired - Fee Related
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Granted publication date: 20050817 Termination date: 20210811 |