CN103028366A - Method for preparing composite absorbing filter material - Google Patents
Method for preparing composite absorbing filter material Download PDFInfo
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- CN103028366A CN103028366A CN2012105554137A CN201210555413A CN103028366A CN 103028366 A CN103028366 A CN 103028366A CN 2012105554137 A CN2012105554137 A CN 2012105554137A CN 201210555413 A CN201210555413 A CN 201210555413A CN 103028366 A CN103028366 A CN 103028366A
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- steel slag
- waste steel
- preparation
- composite adsorption
- mixture
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000002893 slag Substances 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000004571 lime Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 5
- 239000000706 filtrate Substances 0.000 claims description 32
- 238000001179 sorption measurement Methods 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000011324 bead Substances 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000012798 spherical particle Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000000050 nutritive effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000000498 ball milling Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The invention relates to a method for preparing a composite absorbing filter material. The method comprises the following steps: crushing, finely screening and drying steel waste slags; adding recovery powder, lime, cement and water in the screened steel waste slags in sequence, and then mixing proportionately; sufficiently mixing the sample and then stirring the mixture to form a dough, and then taking a small amount of the mixture and twisting the mixture into small balls; and covering the small balls with gauze, watering the small balls to keep the small balls wet, and then carrying out curing to obtain the calcination-free absorbing filter material. The absorbing filter material is calcination-free, has a better absorption effect on phosphorus and other nutritive substances, is good in pressure resistance and wide in raw material resource, does not have the needs of high temperature activation or sinter, and is low in raw material cost, simple in process, low in requirement on the equipment, and particularly suitable for treatment of sewage in a highway toll area.
Description
Technical field
The present invention relates to the manufacturing technology of the biofilter material in a kind of water treatment technology, particularly a kind of preparation method of composite adsorption filtrate.
Background technology
Filtrate is the most important part of BAF, selects different filtrates can produce larger impact to the treatment effect of BAF.Under normal habitat, the microorganism surface is with negative electrical charge, if filter material surface is positively charged, this will make microorganism in the adhering to of filter material surface, fixation procedure is easier carries out.The degree of roughness of filter material surface is conducive to bacterium in its surface attachment, fixing; coarse surface has increased the effective contact area between bacterium and filtrate; the Alto bacterium to Fu and play shielding protection in the hole that specific area forms, crack etc., makes it avoid the souring of hydraulic shear.Therefore can the various characteristics as the filtrate of microbe carrier have determined that can BAF efficiently move, be widely used in water treatment and promote.
At present common Discussion of Biological Aerated Filter Medium mainly contains inorganic filtrate and organic polymer filtrate two large classes on the market.Inorganic filtrate commonly used has haydite, coke, quartz sand, active carbon, expansion alumino-silicate etc.; The organic polymer filtrate mainly contains polystyrene, polyvinyl chloride, polypropylene etc.Quartz sand as inorganic filtrate commonly used because density is large, and specific area is little, porosity is little, when effluent stream during through filtering layer resistance very large, biomass is few, therefore to process load not high in the filter tank, and the loss of flood peak is large, has certain limitation as the filtrate of BAF; Compatibility between organic polymer filtrate and microorganism is relatively poor, so biomass is less during biofilm, easily comes off, and treatment effect is unsatisfactory and expensive.Therefore, all replace single filtrate at the corresponding composite filtering material of research at present both at home and abroad, but usually need 500 ~ 600 ℃ high temperature sintering just can make it moulding.
Summary of the invention
The object of the present invention is to provide a kind of preparation method who exempts to calcine, the nutriments such as phosphorus are had the composite baking-free absorbent filter medium of high adsorption capacity.
The technical solution that realizes the object of the invention is: a kind of preparation method of composite adsorption filtrate, take waste steel slag, recovery powder, lime, cement and water as raw material, mix, stir into the dough shape, again mixture is twisted into coccoidly, is covered with gauze and waters, keep bead moistening, after the maintenance, the composite adsorption filtrate of preparation.
1, a kind of preparation method of composite adsorption filtrate, its key step comprises:
1.1, waste steel slag pulverizes with ball mill device;
1.2, in blast dry oven equipment, dry to constant weight the waste steel slag of pulverizing for subsequent use;
1.3, the waste steel slag that will be dried to constant weight takes out from blast dry oven equipment, carries out the particle diameter screening with vibration screening device;
1.4, the waste steel slag after will sieving adds successively and reclaims powder, lime, cement, water, fully mixes, stirs, and becomes the dough shape;
1.5, mixture is twisted into sphere;
1.6, the spherical mixture that will be twisted into is covered with gauze and waters, and keeps bead moistening, maintenance obtains composite adsorption filtrate finished product.
2, the preparation method of composite adsorption filtrate according to claim 1, it is characterized in that: waste steel slag is thin through grinding screen in the step 1.2, and bake out temperature is 100 ℃ ~ 110 ℃, and drying time is 20-30h.
3, the preparation method of composite adsorption filtrate according to claim 1 is characterized in that: selecting the sieve aperture in the step 1.3 is 50 orders, 100 orders, 200 orders or 400 orders.
4, the preparation method of composite adsorption filtrate according to claim 1 is characterized in that: step 1.4 Raw component is by mass percentage: waste steel slag 30%-40%, recovery powder 30%-40%, lime 3%-5%, cement 8%-9%, all the other components are water.
5, the preparation method of composite adsorption filtrate according to claim 1 is characterized in that: the spherical particle diameter that is prepared in the step 1.5 is 3mm ~ 5mm.
Principle of the present invention is: waste steel slag has good suction-operated for nutriments such as phosphorus in present research, and the heavy metal cation in the easy adsorbent solution can also be by the pollutant in the removal water bodys such as ion-exchange, reduction, chemical precipitation.
The present invention compared with prior art, its remarkable advantage is:
1, raw materials used is discarded object;
2, do not need high-temperature activation and sintering, do not consume coal, electric power equal energy source;
3, sinking speed is fast in water, is convenient to separate;
4, inorganic ions there is certain suction-operated, heavy metal ion is then had significant removal effect;
5, the adsorption capacity that filtrate is loose porous, specific area is large, strong.
Description of drawings
Accompanying drawing is process chart of the present invention.
The specific embodiment
Each embodiment technological process as shown in Figure 1.
Embodiment 1
(1) will be thin through small-sized ore sample disintegrating machine (BOYD) the ball milling instrument grinding screen of New Zealand Rocklabs from the waste steel slag that steel mill ships, cross 200 mesh sieves;
(2) the waste steel slag sample was dried 20 hours 100 ℃ of bake out temperatures in the electric heating blast dry oven;
(3) will dry waste steel slag 350g to constant weight, reclaim powder 350g, lime 30g, cement 90g, water 180g, mix;
(4) treat that sample fully mixes, stirs, behind the one-tenth dough shape, take a morsel is twisted into bead at every turn, and particle diameter is 5mm;
(5) whole samples are twisted into bead after, be covered with gauze and water, keep bead moistening, maintenance 4 days.
The compression strength of the composite adsorption filtrate after preparation is finished is 15.7-17.8 Mpa, and specific area is 282-289 m2/kg, and density is 2.68-2.81g/ cm3.
The maximal absorptive capacity of ammonia nitrogen is 0.26-0.28mg/g in the prepared composite adsorption filtrate sample simulated wastewater, and the maximal absorptive capacity of phosphorus is 0.050-0.065mg/g; Maximal absorptive capacity to the sanitary sewage sample ammonia nitrogen of Beijing-Shanghai high speed Huang Li villa service area, six hole service areas, celestial being mountain service area, coastal high speed Rugao service area and Ningbo-Hangzhou high speed Tianmu Lake service area is 0.13-0.17mg/g, is 0.036-0.042mg/g to the maximal absorptive capacity of phosphorus.
Prepared a kind of composite adsorption filtrate is 76.4-83.9% to the clearance of the sanitary sewage sample ammonia nitrogen of Beijing-Shanghai high speed Huang Li villa service area, six hole service areas, celestial being mountain service area, coastal high speed Rugao service area and Ningbo-Hangzhou high speed Tianmu Lake service area, is 95.42-97.50% to the clearance of total phosphorus.
Embodiment 2
(1) will be thin through small-sized ore sample disintegrating machine (BOYD) the ball milling instrument grinding screen of New Zealand Rocklabs from the waste steel slag that steel mill ships, cross 100 mesh sieves;
(2) the waste steel slag sample was dried 25 hours 105 ℃ of bake out temperatures in the electric heating blast dry oven;
(3) take by weighing drying to the waste steel slag 300g of constant weight, reclaim powder 400g, lime 50g, cement 80g, water 170g, mix;
(4) treat that sample fully mixes, stirs, behind the one-tenth dough shape, take a morsel is twisted into bead at every turn, and particle diameter is 4mm;
(5) whole samples are twisted into bead after, be covered with gauze and water, keep bead moistening, maintenance 3 days.
Embodiment 3
(1) will be thin through small-sized ore sample disintegrating machine (BOYD) the ball milling instrument grinding screen of New Zealand Rocklabs from the waste steel slag that steel mill ships, cross 50 mesh sieves;
(2) the waste steel slag sample was dried 30 hours 110 ℃ of bake out temperatures in the electrothermal drying baking oven;
(3) take by weighing drying to the waste steel slag 400g of constant weight, reclaim powder 300g, lime 40g, cement 85g, water 175g, mix;
(4) treat that sample fully mixes, stirs, behind the one-tenth dough shape, take a morsel is twisted into bead at every turn, and particle diameter is 3mm;
(5) whole samples are twisted into bead after, be covered with gauze and water, keep bead moistening, maintenance 2 days.
Embodiment 4
(1) will be thin through small-sized ore sample disintegrating machine (BOYD) the ball milling instrument grinding screen of New Zealand Rocklabs from the waste steel slag that steel mill ships, cross 400 mesh sieves;
(2) the waste steel slag sample was dried 25 hours 105 ℃ of bake out temperatures in the electric heating convection oven;
(3) take by weighing drying to the waste steel slag 400g of constant weight, reclaim powder 350g, lime 30g, cement 80g, water 140g, mix;
(4) treat that sample fully mixes, stirs, behind the one-tenth dough shape, take a morsel is twisted into bead at every turn, and particle diameter is 5mm;
(5) whole samples are twisted into bead after, be covered with gauze and water, keep bead moistening, maintenance 3 days.
Claims (5)
1. the preparation method of a composite adsorption filtrate is characterized in that said method comprising the steps of:
1.1, waste steel slag pulverizes with ball mill device;
1.2, in blast dry oven equipment, dry to constant weight the waste steel slag of pulverizing for subsequent use;
1.3, the waste steel slag that will be dried to constant weight takes out from blast dry oven equipment, carries out the particle diameter screening with vibration screening device;
1.4, the waste steel slag after will sieving adds successively and reclaims powder, lime, cement, water, fully mixes, stirs, and becomes the dough shape;
1.5, mixture is twisted into sphere;
1.6, the spherical mixture that will be twisted into is covered with gauze and waters, and keeps bead moistening, maintenance obtains composite adsorption filtrate finished product.
2. the preparation method of composite adsorption filtrate according to claim 1, it is characterized in that: waste steel slag is thin through grinding screen in the step 1.2, and bake out temperature is 100 ℃ ~ 110 ℃, and drying time is 20-30h.
3. the preparation method of composite adsorption filtrate according to claim 1, it is characterized in that: selecting the sieve aperture in the step 1.3 is 50 orders, 100 orders, 200 orders or 400 orders.
4. the preparation method of composite adsorption filtrate according to claim 1, it is characterized in that: step 1.4 Raw component is by mass percentage: waste steel slag 30%-40%, to reclaim powder 30%-40%, lime 3%-5%, cement 8%-9%, all the other components be water.
5. the preparation method of composite adsorption filtrate according to claim 1, it is characterized in that: the spherical particle diameter that is prepared in the step 1.5 is 3mm ~ 5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210555413.7A CN103028366B (en) | 2012-12-20 | 2012-12-20 | Method for preparing composite absorbing filter material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210555413.7A CN103028366B (en) | 2012-12-20 | 2012-12-20 | Method for preparing composite absorbing filter material |
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| CN103028366A true CN103028366A (en) | 2013-04-10 |
| CN103028366B CN103028366B (en) | 2014-10-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670638A (en) * | 2017-09-30 | 2018-02-09 | 武汉金钢新材料有限公司 | Steel mill's waste residue composition for filtration treatment sewage and preparation method thereof |
| CN110132800A (en) * | 2019-06-06 | 2019-08-16 | 北京科技大学 | A kind of system and method for the performance of detection filtrate adsorbed gas simultaneously and particulate matter |
| CN111018094A (en) * | 2019-12-26 | 2020-04-17 | 南京公诚节能新材料研究院有限公司 | Preparation method of light biological filter material |
| CN111087219A (en) * | 2019-12-27 | 2020-05-01 | 南京师范大学 | Baking-free type steel slag microporous filter ball and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708399A (en) * | 2009-11-11 | 2010-05-19 | 济南大学 | Porous slag filter material and preparation method thereof |
| CN101716441A (en) * | 2009-11-23 | 2010-06-02 | 济南大学 | Burn-free porous steel slag filter material and preparation method thereof |
-
2012
- 2012-12-20 CN CN201210555413.7A patent/CN103028366B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708399A (en) * | 2009-11-11 | 2010-05-19 | 济南大学 | Porous slag filter material and preparation method thereof |
| CN101716441A (en) * | 2009-11-23 | 2010-06-02 | 济南大学 | Burn-free porous steel slag filter material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670638A (en) * | 2017-09-30 | 2018-02-09 | 武汉金钢新材料有限公司 | Steel mill's waste residue composition for filtration treatment sewage and preparation method thereof |
| CN110132800A (en) * | 2019-06-06 | 2019-08-16 | 北京科技大学 | A kind of system and method for the performance of detection filtrate adsorbed gas simultaneously and particulate matter |
| CN110132800B (en) * | 2019-06-06 | 2021-01-12 | 北京科技大学 | System and method for detecting performance of filter material for simultaneously adsorbing gas and particulate matters |
| CN111018094A (en) * | 2019-12-26 | 2020-04-17 | 南京公诚节能新材料研究院有限公司 | Preparation method of light biological filter material |
| CN111018094B (en) * | 2019-12-26 | 2022-04-01 | 南京公诚节能新材料研究院有限公司 | Preparation method of light biological filter material |
| CN111087219A (en) * | 2019-12-27 | 2020-05-01 | 南京师范大学 | Baking-free type steel slag microporous filter ball and preparation method and application thereof |
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| CN103028366B (en) | 2014-10-08 |
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