JPH0368445A - Phosphorus remover and its production - Google Patents
Phosphorus remover and its productionInfo
- Publication number
- JPH0368445A JPH0368445A JP20385989A JP20385989A JPH0368445A JP H0368445 A JPH0368445 A JP H0368445A JP 20385989 A JP20385989 A JP 20385989A JP 20385989 A JP20385989 A JP 20385989A JP H0368445 A JPH0368445 A JP H0368445A
- Authority
- JP
- Japan
- Prior art keywords
- phosphorus
- remover
- allophane
- water
- composed essentially
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 56
- 239000011574 phosphorus Substances 0.000 title claims abstract description 56
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims abstract description 27
- 229910001583 allophane Inorganic materials 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 239000002689 soil Substances 0.000 abstract description 3
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 150000003017 phosphorus Chemical class 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 239000010703 silicon Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 235000008935 nutritious Nutrition 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 238000012851 eutrophication Methods 0.000 description 9
- 238000001179 sorption measurement Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 108010082455 Sebelipase alfa Proteins 0.000 description 2
- 230000005791 algae growth Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 229940041615 kanuma Drugs 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水中に低濃度に含まれるリンを除去するリン
除去材、特にダム、湖沼等の富栄養化の防止のために好
適なリン除去材及びその製造方法に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention provides a phosphorus removal material that removes phosphorus contained in water at low concentrations, particularly a phosphorus removal material suitable for preventing eutrophication of dams, lakes, etc. The present invention relates to a removal material and a method for manufacturing the same.
近年、湖沼、海域、河川などの停滞性水域における富栄
養化が重大な社会問題となってきている。In recent years, eutrophication in stagnant water bodies such as lakes, oceans, and rivers has become a serious social problem.
富栄養化の主原因物質は、栄養塩あるいは有機物とみら
れているが、そのうち、リンが富栄養化の制限因子の一
つと言われている。従って、富栄養化防止対策としては
、河川に流入する排水中のリンを除去するか、あるいは
底部にＮ稙する汚泥中のリン溶出防止策をとることなど
が考えられる。The main causes of eutrophication are thought to be nutrient salts or organic matter, but phosphorus is said to be one of the limiting factors for eutrophication. Therefore, possible measures to prevent eutrophication include removing phosphorus from wastewater flowing into rivers, or taking measures to prevent phosphorus elution from the sludge at the bottom.
水中のリンを除去する手段としては、凝集沈殿法、吸着
法、晶析脱リン法、生物脱リン法があり、また、汚泥中
のリン溶出防止手段としては、覆砂や浚渫などの方法が
ある。Methods for removing phosphorus from water include coagulation-sedimentation, adsorption, crystallization dephosphorization, and biological dephosphorization. Methods for preventing phosphorus elution from sludge include sand-covering and dredging. be.
しかしながら、ダム、湖沼等の富栄養化の場合のように
、流入する河川水のリン濃度は一般的には約０．０７■
／１以下と低い濃度であるが、藻類増殖のリン濃度限界
４１０．０３■／ｌより高い値であると、貯留中に富栄
養化を生じ、放流光の水道水や養魚場等への被害や環境
への悪影響を生じている。このような場合、リン排出源
は農地、生活排水など多岐にわたっており、それぞれの
排出源に対する対策を立てに＜＜、河川水を直接脱リン
することが効果的であるが、このような大水量で低濃度
にリンを含有した水を脱リンすることはむずかしいと考
えられていた。However, as in the case of eutrophication of dams, lakes, etc., the phosphorus concentration of incoming river water is generally about 0.07
Although the concentration is low at less than /1, if it is higher than the phosphorus concentration limit for algae growth (410.03/l), eutrophication will occur during storage, causing damage to tap water, fish farms, etc. and have a negative impact on the environment. In such cases, the sources of phosphorus emissions are wide-ranging, such as agricultural land and domestic wastewater, and it is effective to dephosphorize river water directly by taking measures against each source, but with such a large amount of water, It was thought that it would be difficult to dephosphorize water containing low concentrations of phosphorus.
一方、汚泥中のリン溶出防止対策としての覆砂や浚渫な
どの手段は一時的なものであり、さらに浚渫は底部汚泥
の除去に多大な費用を要す゛ると共に、除去した汚泥の
処理、処分が厄介な問題となっていた。On the other hand, measures such as sand-covering and dredging to prevent phosphorus elution from sludge are temporary measures, and dredging requires a great deal of cost to remove the sludge at the bottom, and it is difficult to treat and dispose of the removed sludge. It had become a troublesome problem.
本発明は、上記従来の問題点を解決し、特に河川水等の
大量の水中に低濃度に含まれるリンを効率的に除去し、
ダム、湖沼等の富栄養化を容易に防止することができる
リン除去材及びその製造方法を提供することを目的とす
るものである。The present invention solves the above-mentioned conventional problems, and in particular efficiently removes phosphorus contained in low concentrations in large amounts of water such as river water.
The object of the present invention is to provide a phosphorus removal material that can easily prevent eutrophication of dams, lakes, etc., and a method for producing the same.
本発明は、アロフェンを主成分とする＄５質を焼成して
なるリン除去材であり、またアロフェンを主成分とする
物質を２００〜６００℃で焼成すること、及びアロフェ
ンを主成分とする物質を粉砕後成形し、次いで２００〜
６００℃で焼成することを特徴とするリン除去材の製造
方法でもある。The present invention is a phosphorus removal material made by firing a $5 substance containing allophane as a main component, and also involves firing a substance containing allophane as a main component at 200 to 600°C, and a material containing allophane as a main component. is crushed and molded, then 200~
It is also a method for producing a phosphorus removal material characterized by firing at 600°C.
本発明のリン除去材の原料は、アロフェンを主成分とす
る物質である。アロフェンを主成分とする物質は、アル
ミニウムのケイ酸塩（ｎｓｉＯ□・Ａ１．Ｏ，・ｎＨｚ
Ｏ（ｎ＝１〜２）〕を主成分とする物質であって、火山
灰源の表土中に広く産する（関東火山灰層等）もので、
天然に大量に産出され、安価で人手容易である０例えば
、栃木県真岡市寺内産出土、鹿沼産出土、大沢産出土が
あげられ、それらの！＋１或は皮表の通りである。The raw material for the phosphorus removing material of the present invention is a substance containing allophane as a main component. The substance whose main component is allophane is aluminum silicate (nsiO□・A1.O,・nHz
O (n=1-2)], which is widely found in the surface soil of volcanic ash sources (Kanto volcanic ash layer, etc.).
It is naturally produced in large quantities, cheap, and easy to handle.0For example, there are excavations from Terauchi, Moka City, Tochigi Prefecture, Kanuma, and Osawa. +1 or as per the skin surface.
単位二重四％
このようなアロフェンを主成分とする物質は、そのＡｌ
−ＯＨ基がリン酸イオンの除去に寄与するものと考えら
れ、ケイ素、アルミニウムの含有率が高くかつＳｉ／＾
ｌ比の小さなものが好適である。そして、この物質を焼
成するものであるが、多くの実験を重ねた結果、２００
〜６００℃で焼成すれば極めて優れたリン除去性能を示
すことが確認された。Unit double 4% Such a substance whose main component is allophane is
It is thought that the -OH group contributes to the removal of phosphate ions, and the content of silicon and aluminum is high and Si/^
A material with a small l ratio is preferable. This material is then fired, and as a result of many experiments, 200
It was confirmed that extremely excellent phosphorus removal performance was exhibited when calcined at ~600°C.
第１図は、それぞれリンを０．０５■／ｊ！、０．１■
／１含有する液に、各種温度で焼成した鹿沼土を添加し
、３０秒反応させたのちの液中のリン濃度を測定した結
果を示し、この第１図に示すように、２００〜６００℃
で焼成したものが、藻類増殖のリン濃度限界値０．０３
■／７！以下にまでリンを除去することができ、著しく
リン除去能力が向上することを確認したのである。アロ
フェンを主成分とする物質によるリン除去の機構は、表
面に存在する官能基による吸着と考えられ、２００〜６
００℃で焼成したものが特にリン除去能力が向上するの
は、表面の官能基が変化したためと推定される。Figure 1 shows phosphorus at 0.05■/j! ,0.1■
The results of measuring the phosphorus concentration in the solution after adding Kanuma soil fired at various temperatures to the solution containing /1 and reacting for 30 seconds are shown in Figure 1.
The phosphorus concentration limit for algae growth is 0.03.
■／7! It was confirmed that phosphorus could be removed to the following levels, and the phosphorus removal ability was significantly improved. The mechanism of phosphorus removal by substances containing allophane as a main component is thought to be adsorption by functional groups present on the surface.
It is presumed that the reason why the phosphorus removal ability is particularly improved in those fired at 00°C is because the functional groups on the surface have changed.
このようにして、アロフェンを主成分とする物質を焼成
して得られたリン除去材は、例えば第２図に示すように
、リン吸着塔１内に充填して充填Ｎ２を形成させるが、
このリン除去材は多孔質であり、当初は空気を内部に含
んでいるので、浮上を防止するために透水性の抑え部材
３を設けることが好ましい、このリン吸着塔１にリンを
含有する原水を下向流で通水すると、水が充填Ｎ２を通
過する間にリンが吸着され、同時に水中の濁質の一部も
除去されながら、リンが除去された処理水が系外へ流出
する。In this way, the phosphorus removal material obtained by firing the substance containing allophane as a main component is filled into the phosphorus adsorption tower 1 to form packed N2, as shown in FIG. 2, for example.
Since this phosphorus removal material is porous and initially contains air inside, it is preferable to provide a water permeable suppressing member 3 to prevent floating. When the water is passed in a downward flow, phosphorus is adsorbed while the water passes through the filled N2, and at the same time, part of the suspended matter in the water is removed, and the treated water from which phosphorus has been removed flows out of the system.
しかして、このような脱リン処理を継続するうちに、リ
ン除去材はリンを吸着して飽和状態になるから、吸着飽
和したリン除去材をリン吸着塔１から取り出し、アルカ
リ溶液等に浸漬することにより容易に再生される。その
場合、リン除去材を第３図に示すように、網体４内に適
当な量を充填しておけば、取り出しその他の取り扱いが
容易になる。However, as such dephosphorization treatment continues, the phosphorus removal material adsorbs phosphorus and becomes saturated, so the phosphorus removal material that has been saturated with adsorption is taken out from the phosphorus adsorption tower 1 and immersed in an alkaline solution or the like. This makes it easier to reproduce. In that case, if an appropriate amount of phosphorus removing material is filled in the mesh body 4 as shown in FIG. 3, removal and other handling will be facilitated.
また、脱リンすべき原水中に多量の濁質が含まれている
時は、前記充填層２は濁質による目詰まりが生ずる。こ
れを避けるために、原料を粉砕後成形し、次いで２００
〜６００℃で焼成して焼成成形品とすることが好ましい
、即ち、原料を粉砕したのち、例えば、第４図のように
透水孔５を多数有する直方体に成形して焼成したものや
、第５．６図のように透水孔５を単数又は複数行する円
柱状、あるいは第７図のように透水孔５を複数行する球
形状に成形して焼成したものが目詰まりがなく、取扱い
も便利である。Further, when the raw water to be dephosphorized contains a large amount of suspended solids, the packed bed 2 becomes clogged with suspended solids. To avoid this, the raw material is crushed and then molded, and then
It is preferable to make a fired molded product by firing at ~600°C, that is, after pulverizing the raw material, for example, a rectangular parallelepiped with many water permeable holes 5 as shown in FIG. .Those molded and fired into a cylindrical shape with one or more rows of water permeable holes 5 as shown in Figure 6, or a spherical shape with multiple rows of water permeable holes 5 as shown in Figure 7 are free from clogging and are convenient to handle. It is.
内径５０關、高さ１１０００ｔのカラムに、表−１に示
す各種リン除去材を収容し、これらのカラムにそれぞれ
リン０．０７■／１． ｉｇ度５０度を含有する河川水
をＬｖ９０ｍ／日で通水した時の処理結果は表−１に示
すとおりで、本発明で得られたリン除去材は、比較例に
較べてリン除去性能が著しく良好であることを示した。Columns with an inner diameter of 50mm and a height of 11,000t are filled with the various phosphorus removal materials shown in Table 1, and each of these columns is charged with phosphorus of 0.07cm/1. The treatment results when river water containing an ig degree of 50 degrees was passed through at Lv 90 m/day are shown in Table 1, and the phosphorus removal material obtained in the present invention has a higher phosphorus removal performance than the comparative example. It was shown to be extremely good.
以下余白
〔発明の効果〕
以上述べたように本発明は、大量に入手容易なアロフェ
ンを主成分とする物質を焼成して、リン除去能力の優れ
た粒状又は成形されたリン除去材を得ることができ、大
量の河川水中に低濃度に含まれるリンを効率的かつ経済
的に除去することができ、ダム、湖沼等の富栄養化防止
に極めて有利となるものである。Margins below [Effects of the Invention] As described above, the present invention is to obtain a granular or shaped phosphorus removal material with excellent phosphorus removal ability by firing a substance whose main component is allophane, which is easily available in large quantities. This makes it possible to efficiently and economically remove phosphorus contained in low concentrations in large amounts of river water, which is extremely advantageous in preventing eutrophication of dams, lakes, and marshes.
第１図はアロフェンを主成分とする物質の焼成温度とリ
ン除去能力との関係を示す線図で、第２図は脱リン処理
の一例を示すリン吸着塔の説明図、第３〜７図は本発明
のリン除去材の使用形態を示す説明図である。
１・・・リン吸着塔、２・・・充填層、３・・・抑え部
材、４・・・網体、５・・・透水孔。Figure 1 is a diagram showing the relationship between the calcination temperature and phosphorus removal ability of a substance whose main component is allophane, Figure 2 is an explanatory diagram of a phosphorus adsorption tower showing an example of dephosphorization treatment, and Figures 3 to 7 FIG. 2 is an explanatory diagram showing a usage pattern of the phosphorus removing material of the present invention. DESCRIPTION OF SYMBOLS 1... Phosphorus adsorption tower, 2... Packed bed, 3... Suppression member, 4... Net body, 5... Water permeation hole.
Claims (3)
ン除去材。(1) A phosphorus removal material made by firing a substance whose main component is allophane.
℃で焼成することを特徴とするリン除去材の製造方法。(2) 200 to 600 substances whose main component is allophane
A method for producing a phosphorus removal material, which comprises firing at ℃.
次いで２００〜６００℃で焼成することを特徴とするリ
ン除去材の製造方法。(3) Grinding and molding a substance whose main component is allophane,
A method for producing a phosphorus-removing material, which comprises then firing at 200 to 600°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20385989A JPH0626663B2 (en) | 1989-08-08 | 1989-08-08 | Phosphorus removing material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20385989A JPH0626663B2 (en) | 1989-08-08 | 1989-08-08 | Phosphorus removing material and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0368445A true JPH0368445A (en) | 1991-03-25 |
| JPH0626663B2 JPH0626663B2 (en) | 1994-04-13 |
Family
ID=16480879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20385989A Expired - Lifetime JPH0626663B2 (en) | 1989-08-08 | 1989-08-08 | Phosphorus removing material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626663B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612692A1 (en) * | 1993-02-26 | 1994-08-31 | Createrra Inc. | Water purifying substances and method for production thereof |
| WO2005080274A1 (en) * | 2004-02-19 | 2005-09-01 | Environment Technology Research Institute Corporation | Water purification material |
| CN114557160A (en) * | 2022-02-17 | 2022-05-31 | 江西省农业科学院土壤肥料与资源环境研究所 | Southern paddy field nitrogen and phosphorus loss prevention and control equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03213252A (en) * | 1990-01-16 | 1991-09-18 | Fanuc Ltd | Copying speed control system |
| JP4576301B2 (en) * | 2005-07-11 | 2010-11-04 | Ｄｏｗａホールディングス株式会社 | Phosphorus removal material |
-
1989
- 1989-08-08 JP JP20385989A patent/JPH0626663B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612692A1 (en) * | 1993-02-26 | 1994-08-31 | Createrra Inc. | Water purifying substances and method for production thereof |
| US5447653A (en) * | 1993-02-26 | 1995-09-05 | Createrra Inc. | Method for the production of water purifying substances |
| WO2005080274A1 (en) * | 2004-02-19 | 2005-09-01 | Environment Technology Research Institute Corporation | Water purification material |
| CN114557160A (en) * | 2022-02-17 | 2022-05-31 | 江西省农业科学院土壤肥料与资源环境研究所 | Southern paddy field nitrogen and phosphorus loss prevention and control equipment |
| CN114557160B (en) * | 2022-02-17 | 2023-09-05 | 江西省农业科学院土壤肥料与资源环境研究所 | South paddy field nitrogen and phosphorus loss prevention and control equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0626663B2 (en) | 1994-04-13 |
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