CN103449559A - Method and application for using building abandoned cement brick as dephosphorization filler - Google Patents
Method and application for using building abandoned cement brick as dephosphorization filler Download PDFInfo
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- CN103449559A CN103449559A CN201310420535XA CN201310420535A CN103449559A CN 103449559 A CN103449559 A CN 103449559A CN 201310420535X A CN201310420535X A CN 201310420535XA CN 201310420535 A CN201310420535 A CN 201310420535A CN 103449559 A CN103449559 A CN 103449559A
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Abstract
The invention relates to a dephosphorization adsorbent for treating low-concentration-phosphorus-containing eutrophic water. The dephosphorization adsorbent is characterized in that crushed cement bricks are used as filler for adsorptive dephosphorization. According to the dephosphorization adsorbent, abandoned cement bricks of a building are used and are of small granular adsorbents after being crushed, so that the concentration of phosphorus in the water can be lowered effectively; compared with other common adsorbents, the adsorbent has a particularly obvious effect on lowering the phosphorus concentration of the low-concentration-phosphorus-containing water; the cement bricks are adsorbents which have the advantages of low cost and excellent performance; the dephosphorization adsorbent can be widely applied to the treatment on eutrophic water, and meanwhile, the field of recycling of the cement bricks as building wastes is developed.
Description
Technical field
Patent of the present invention relates to the application of cement brick in administering eutrophication water.Belong to the water pollution control field.
Background technology
Eutrophication refers to that the nutritive substances such as biological required nitrogen, phosphorus enter the unhurried current water bodys such as lake, river mouth, bay in a large number, causes that algae and other planktonic organism breed rapidly, and the water body dissolved oxygen amount descends, the phenomenon of fish and other biological mortality.The development trend of China lake, reservoir and rivers eutrophication is very fast.1978～1980 years most of lakes, in middle nutritional status, account for 91.8% of investigation area, and poor nutritional status lake accounts for 3.2%, and the eutrophic state lake accounts for 5.0%.Between short 10 years, the large multidirectional middle nutritional status lake transition in poor nutritional status lake, the shared evaluation area ratio in poor nutritional status lake is reduced to rapidly 0.53% from 3.2%, middle nutritional status lake is to the eutrophic state transition, and the shared evaluation area ratio of eutrophic lake is from 5.0% sharp increase to 55.01%.
In the decades in past, restoration of the ecosystem is widely used in the nutrition (especially nitrogen phosphorus) of removing in water, and organism and heavy metal etc., become one of important measures that improve water pollution.One of purifying eutrophication water body difficult point is dephosphorization.Phosphorus in water body is jointly to complete by number of ways such as the absorption of matrix and precipitating action, microorganism and plant absorptions, and wherein, the adsorption of matrix is main dephosphorization mode; Although plant, microorganism can absorb a part of phosphorus, the phosphorus that this approach is removed only accounts for the sub-fraction of phosphorus in water body.Therefore, matrix tool in the dephosphorization process is of great significance.Different substrates can present different features in difference containing the removal effect and the mechanism that embody in the phosphorus concentration water body, and the adsorptive capacity of matrix is removed the restraining factors of phosphorus.Matrix is the adsorptive power difference containing phosphorus water to different concns, and under High Concentration Situation, the matrix of high adsorption capacity is obviously different at the adsorpting characteristic of low-concentration phosphorus-containing water body.Under laboratory condition, cement brick is studied in detail, finds that it has good detergent power to the low-concentration phosphorus-containing water body, this is mainly due to the calcium that contains high level in cement brick, aluminium and ferro element.
Therefore, find a kind of cheapness, one of effective measure of good sorbent material eutrophied water treatment to the phosphorus removal effect.
Summary of the invention
The invention provides a kind of for administering the dephosphorization adsorbent of eutrophication water.Solve the problem of eutrophication and the recycling problem of construction waste cement brick.
Technical scheme of the present invention: at first by the cement brick fragmentation, using broken cement brick as filler, with eutrophication water, contact, reduce the concentration of phosphorus in water by the cement brick adsorption.Described fragment of brick is the construction waste cement brick, and main component is cement and river sand by analysis, is rich in the materials such as silicate and calcium salt.Through repeatedly test, show that in this sorbent material removal water body, the low phosphorus effect is very good.
Short texture after the prepared cement brick fragmentation of the present invention, porosity is large, and hydraulic conductivity can be good, and specific surface area is large, is a kind of good filler, has the function of microbe carrier and phosphorus adsorbent concurrently.
It is good, simple to operate that cement brick as sorbent material provided by the invention has an absorption property, non-secondary pollution, and cheapness, the characteristics such as environmental protection, be a kind of adsorption and dephosphorization material of common cheapness, to the clearance of phosphorus in water, can reach more than 90%.Can be widely used in the improvement of eutrophication water, also open up the field of cement brick as the application of construction waste resource utilization simultaneously.
The accompanying drawing explanation
Fig. 1, Fig. 2 are respectively the cylinder schematic diagram of patent of the present invention and as the Performance of Constructed Wetlands Substrates schematic diagram.
Embodiment
At first will be as the cement brick fragmentation of building castoff.
Embodiment 1: get the fragment of brick that 6 parts of particle diameters are 5mm, add respectively the 150mL potassium dihydrogen phosphate, initial phosphorus concentration scope is respectively 0.5,1,2,3,4,5mg/L.Shake 24h in 25 ℃ of constant-temperature tables.According to adsorption isothermal line, calculating cement brick is 0.644 mg-P/g-sorbent material at maximum adsorption capacity.In same condition lower magnet ore deposit, the saturated extent of adsorption of cement brick is apparently higher than the saturated extent of adsorption 0.158 mg-P/g-sorbent material of magnetic iron ore.
Embodiment 2: adopt filled column to process the waste water containing low phosphorus, adsorption column (as shown in Figure 1), the adsorption column internal diameter is that 60mm, virtual height are 300mm, and in cylinder, filling concrete brick (particle diameter 5 ~ 10mm) is in adsorption column, and effectively bed stuffing height is 300mm.In water inlet, TP concentration maintains 2mg/L left and right, hydraulic load 10cm/d.Cylinder goes out water concentration and maintains below 0.2mg/L.
Embodiment 3: in conjunction with Fig. 2, present embodiment is described, as artificial swamp, processes the filler containing low phosphorus river course water.This artificial swamp back segment filling concrete brick, bringing into play the effect of dephosphorization.Eutrophication river course water containing low phosphorus adopts the mode of vertical current water inlet in the cement brick section, guarantee that cement brick fully contacts with filler.The hydraulic load of wetland operation is 12cmd
-1, size 2 m * 0.6 m * 0.4 m, water inlet NH
4 +-N maintains 10mg/L, TN20mg/L, TP2mg/L, NH
4 +the clearance of-N and TN can reach more than 90%, and TP goes out water concentration and maintains 0.5mg/L.
Claims (3)
1. one kind for the treatment of containing the waste water adobe filler of low phosphorus water body, it is characterized in that using particulate state cement brick after fragmentation as sorbent material.
2. cement brick according to claim 1, as the application of filler in water technology.
3. cement brick according to claim 1, as the application of dephosphorization adsorbent in water technology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310420535XA CN103449559A (en) | 2013-09-16 | 2013-09-16 | Method and application for using building abandoned cement brick as dephosphorization filler |
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| CN201310420535XA CN103449559A (en) | 2013-09-16 | 2013-09-16 | Method and application for using building abandoned cement brick as dephosphorization filler |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864271A (en) * | 2014-03-21 | 2014-06-18 | 中国科学院水生生物研究所 | Method for repairing polluted bottom mud through waste brick powder |
| CN103978009A (en) * | 2014-05-08 | 2014-08-13 | 常州大学 | Method for preparing artificial wetland matrix material by using powdered waste red brick block |
| CN104528902A (en) * | 2014-12-16 | 2015-04-22 | 上海交通大学 | Novel polymeric aluminum chloride dephosphorizing filler and preparation method thereof |
| CN108892197A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of method that aluminum salt modified waste water clod removes phosphorus in water |
| CN108889268A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of application of modified abandoned cement block in removal rainwater in terms of phosphorus |
| CN108889267A (en) * | 2018-07-15 | 2018-11-27 | 南京信息工程大学 | A kind of method that modified abandoned common brick removes phosphorus in water removal |
| CN109052603A (en) * | 2018-07-15 | 2018-12-21 | 南京信息工程大学 | A kind of method that modified abandoned cement block removes phosphorus in rainwater |
| CN109126799A (en) * | 2018-08-07 | 2019-01-04 | 淮阴工学院 | A kind of red brick powder supported nickel catalyst and preparation method for biomass char oil-breaking reformation |
| CN109704446A (en) * | 2019-01-10 | 2019-05-03 | 四川大学 | A kind of efficient method for removing phosphorus in eutrophic water body |
| CN109724927A (en) * | 2018-12-21 | 2019-05-07 | 江苏大学 | A kind of measuring method of block filler phosphorus adsorbance in practical applications |
| CN115504628A (en) * | 2022-09-20 | 2022-12-23 | 山西华通蓝天环保有限公司 | Filter material for sewage treatment and preparation method thereof |
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| JPS55159889A (en) * | 1979-05-31 | 1980-12-12 | Agency Of Ind Science & Technol | Treating method of waste water containing phosphorus |
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| CN1669632A (en) * | 2004-12-29 | 2005-09-21 | 上海交通大学 | Method for preparing active fly ash phosphorus adsorbent |
| CN101376094A (en) * | 2008-10-13 | 2009-03-04 | 郑州航空工业管理学院 | Method for preparing modified coal ash phosphorus sorbent and uses thereof |
| CN102151548A (en) * | 2011-04-22 | 2011-08-17 | 湖北富邦科技股份有限公司 | Adsorption material for treating phosphorus wastewater and use thereof |
| CN103172168A (en) * | 2013-02-04 | 2013-06-26 | 合肥工业大学 | Biological aerated filter filler preparation method capable of simultaneously removing phosphorus and nitrogen, and application thereof |
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| JPS55159889A (en) * | 1979-05-31 | 1980-12-12 | Agency Of Ind Science & Technol | Treating method of waste water containing phosphorus |
| CN1631513A (en) * | 2004-11-18 | 2005-06-29 | 上海交通大学 | Method for synthesizing zeolite by fly ash and application thereof |
| CN1669632A (en) * | 2004-12-29 | 2005-09-21 | 上海交通大学 | Method for preparing active fly ash phosphorus adsorbent |
| CN101376094A (en) * | 2008-10-13 | 2009-03-04 | 郑州航空工业管理学院 | Method for preparing modified coal ash phosphorus sorbent and uses thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864271A (en) * | 2014-03-21 | 2014-06-18 | 中国科学院水生生物研究所 | Method for repairing polluted bottom mud through waste brick powder |
| CN103864271B (en) * | 2014-03-21 | 2015-08-12 | 深圳万都时代绿色建筑技术有限公司 | A kind of method utilizing waste bricks powder to repair polluted bed mud |
| CN103978009A (en) * | 2014-05-08 | 2014-08-13 | 常州大学 | Method for preparing artificial wetland matrix material by using powdered waste red brick block |
| CN104528902A (en) * | 2014-12-16 | 2015-04-22 | 上海交通大学 | Novel polymeric aluminum chloride dephosphorizing filler and preparation method thereof |
| CN108889267A (en) * | 2018-07-15 | 2018-11-27 | 南京信息工程大学 | A kind of method that modified abandoned common brick removes phosphorus in water removal |
| CN109052603A (en) * | 2018-07-15 | 2018-12-21 | 南京信息工程大学 | A kind of method that modified abandoned cement block removes phosphorus in rainwater |
| CN108889267B (en) * | 2018-07-15 | 2021-08-06 | 南京信息工程大学 | Method for removing phosphorus in water by using modified waste red bricks |
| CN108889268A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of application of modified abandoned cement block in removal rainwater in terms of phosphorus |
| CN108892197A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of method that aluminum salt modified waste water clod removes phosphorus in water |
| CN109126799A (en) * | 2018-08-07 | 2019-01-04 | 淮阴工学院 | A kind of red brick powder supported nickel catalyst and preparation method for biomass char oil-breaking reformation |
| CN109126799B (en) * | 2018-08-07 | 2021-04-23 | 淮阴工学院 | Red brick powder loaded nickel catalyst for biomass tar cracking and reforming and preparation method thereof |
| CN109724927A (en) * | 2018-12-21 | 2019-05-07 | 江苏大学 | A kind of measuring method of block filler phosphorus adsorbance in practical applications |
| CN109704446A (en) * | 2019-01-10 | 2019-05-03 | 四川大学 | A kind of efficient method for removing phosphorus in eutrophic water body |
| CN115504628A (en) * | 2022-09-20 | 2022-12-23 | 山西华通蓝天环保有限公司 | Filter material for sewage treatment and preparation method thereof |
| CN115504628B (en) * | 2022-09-20 | 2023-09-12 | 山西华通蓝天环保有限公司 | Filter material for sewage treatment and preparation method thereof |
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Application publication date: 20131218 |