JP2001157837A - Dephosphorizing material - Google Patents
Dephosphorizing materialInfo
- Publication number
- JP2001157837A JP2001157837A JP34316099A JP34316099A JP2001157837A JP 2001157837 A JP2001157837 A JP 2001157837A JP 34316099 A JP34316099 A JP 34316099A JP 34316099 A JP34316099 A JP 34316099A JP 2001157837 A JP2001157837 A JP 2001157837A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- containing substance
- dephosphorizing
- calcium aluminate
- mixture
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、下水処理場や合併
浄化槽等のリン含有排水からリン分を除去するための脱
リン材に関し、更に詳しくは脱リン効果を上げかつ持続
性に優れた脱リン材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dephosphorizing material for removing phosphorus from a phosphorus-containing wastewater from a sewage treatment plant or a combined septic tank, and more particularly, to a dephosphorizing material having an improved dephosphorizing effect and excellent sustainability. It relates to phosphorus material.
【０００２】[0002]
【従来の技術】従来、下水処理場や合併浄化槽等のリン
含有排水からリン分を除去する技術は、種々知られてい
るが、近年、注目されている技術としては、石灰質原料
と珪酸質原料を原料とした脱リン材が開示されている。
即ち、（１）セメント等の石灰質原料と珪酸質原料に水
を加えて造粒した成形体をオートクレーブ養生してなる
脱リン材がある（特願平０８−３５８３３９号公報参
照）。（２）石炭質原料と珪酸質原料を主成分とする水
スラリーに気泡剤を添加して得た成形体をオートクレー
ブ養生してなる脱リン材の特許がある（特公平０２−２
０３１５号公報参照）。2. Description of the Related Art Conventionally, various techniques for removing phosphorus from phosphorus-containing wastewater such as sewage treatment plants and merged septic tanks have been known, but in recent years, techniques that have attracted attention are calcareous raw materials and siliceous raw materials. There is disclosed a dephosphorizing material using as a raw material.
That is, there is (1) a dephosphorizing material obtained by autoclaving a molded product obtained by adding water to a calcareous material such as cement and a siliceous material (see Japanese Patent Application No. 08-358339). (2) There is a patent for a phosphorus removal material obtained by autoclaving a molded product obtained by adding a foaming agent to a water slurry mainly containing a coal-based material and a siliceous material (Japanese Patent Publication No. 02-2
No. 0315).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
（１）では珪酸カルシウム水和物（トバモライト）の結
晶が成長し難く、特に造粒物内部は硬くなる傾向にあ
り、リン除去率も満足するものではない。また造粒物が
硬化するまでに約１日を要し、ついで水中浸漬後オート
クレーブ養生するが、造粒物が崩壊するものもあり収率
が悪い。更に珪酸カルシウムの水熱反応を進ませるため
には長時間のオートクレーブが必要であった等の問題が
あった。However, in the above (1), crystals of calcium silicate hydrate (tobermorite) are difficult to grow, and especially the inside of the granulated material tends to be hard, and the phosphorus removal rate is also satisfied. Not something. In addition, it takes about one day for the granules to harden, and then is immersed in water and then autoclaved, but the granules may collapse and the yield is poor. Further, there was a problem that a long-time autoclave was required to advance the hydrothermal reaction of calcium silicate.
【０００４】また上記の（２）では、起泡剤を添加して
得た成形体は、適度の大きさに粉砕し、篩分けする必要
があり収率が悪く、更に珪酸カルシウム水和物の結晶が
気泡表面とその他の面で成長が異なるため品質にばらつ
きを生じやすいという問題があった。In the above (2), the molded product obtained by adding a foaming agent needs to be crushed to an appropriate size and sieved, resulting in a poor yield. Since the crystal grows differently on the bubble surface and on the other surface, there is a problem that the quality tends to vary.
【０００５】そこで、本発明者等は、造粒物が水中浸漬
により崩壊して収率が悪くなる点やオートクレーブ養生
における時間短縮、更には、品質のばらつき等のない優
れた脱リン材を得るべく種々検討したところ、原料にア
ルミン酸カルシウム含有物質と硫酸カルシウムの組合せ
を加えることにより、製品化率が向上し、短時間で、品
質のばらつき等のなく脱リン効果を上げかつ持続性に優
れた脱リン材が得られることを見出し、本発明をなすに
至った。したがって、本発明が解決しようとする課題
は、製品化率が向上し、短時間で、品質のばらつき等の
なく脱リン効果を上げかつ持続性に優れた脱リン材を提
供することにある。Therefore, the present inventors have obtained an excellent dephosphorizing material which is free from the point that the granulated material is disintegrated by immersion in water to deteriorate the yield, shortens the time in autoclave curing, and has no variation in quality. After various studies, adding a combination of a calcium aluminate-containing substance and calcium sulfate to the raw material improves the product production rate, improves the dephosphorization effect in a short time, without quality variations, and has excellent sustainability. It has been found that a phosphorus-free material can be obtained, and the present invention has been accomplished. Accordingly, an object of the present invention is to provide a dephosphorizing material which has an improved product conversion rate, has a high dephosphorization effect in a short period of time, without variation in quality, and has excellent durability.
【０００６】[0006]
【課題を解決するための手段】本発明の上記課題は、以
下の各発明によってそれぞれ達成される。The above object of the present invention is achieved by the following inventions.
【０００７】（１）本発明は、石灰質原料と珪酸質原料
の混合物及びアルミン酸カルシウム含有物質と硫酸カル
シウムの混合物を一緒にした全混合物に水を加えて造粒
した粒状物をオートクレーブ養生してなることを特徴と
する脱リン材。 （２）アルミン酸カルシウム含有物質と硫酸カルシウム
の混合割合はＳＯ3 ／Ａｌ2 Ｏ3 モル比が１．０〜２．
０の範囲にあることを特徴とする前記第１項に記載の脱
リン材。 （３）アルミン酸カルシウム含有物質は、ＣＡ（ＣａＯ
・Ａｌ2 Ｏ3 ），Ｃ12Ａ 7 （１２ＣａＯ・７Ａｌ
2 Ｏ3 ），Ｃ11Ａ７（１１ＣａＯ・７Ａｌ2 Ｏ3 ）を含
む材料でステンレス鋼製造時に発生する鉱滓又はアルミ
ナセメントであることを特徴とする前記第１項又は第２
項に記載の脱リン材。 （４）アルミン酸カルシウム含有物質と硫酸カルシウム
の合量の石灰質原料と珪酸質原料の合量への添加割合
は、石灰質原料と珪酸質原料の合量１００重量部に対し
て、５〜３０重量部であることを特徴とする前記第１項
乃至第３項に記載の脱リン材。(1) The present invention relates to a calcareous material and a siliceous material.
Mixture of calcium aluminate and calcium sulfate
Granulate by adding water to the whole mixture of the mixture of calcium
It is characterized in that the granulated material is cured in an autoclave.
Dephosphorizing material. (2) Calcium aluminate-containing substance and calcium sulfate
The mixing ratio of SOThree/ AlTwoOThreeThe molar ratio is 1.0 to 2.
0, which is in the range of 0.
Phosphorus material. (3) The material containing calcium aluminate is CA (CaO
・ AlTwoOThree), C12A 7(12CaO.7Al
TwoOThree), C11A7 (11CaO ・ 7AlTwoOThree)
Slag or aluminum generated during the production of stainless steel
(1) or (2) above, wherein
The dephosphorizing material according to the item. (4) Calcium aluminate-containing substance and calcium sulfate
Of the total amount of calcareous and siliceous materials to the total amount
Is based on 100 parts by weight of calcareous material and siliceous material
Wherein the amount is 5 to 30 parts by weight.
A phosphorus removal material according to any one of Items 3 to 3.
【０００８】（１）本発明は、石灰質原料と珪酸質原料
の混合物及びアルミン酸カルシウム含有物質と硫酸カル
シウムの混合物を一緒にした全混合物に水を加えて造粒
した粒状物をオートクレーブ養生してなることを特徴と
するもので、特にアルミン酸カルシウム含有物質と硫酸
カルシウムの混合物を添加することにより、製品化率が
向上し、短時間で、脱リン効果を上げかつ持続性を向上
させることができるという効果を奏する。 （２）第１項記載の脱リン材において、アルミン酸カル
シウム含有物質と硫酸カルシウムの混合割合はＳＯ3 ／
Ａｌ2 Ｏ3 モル比が１．０〜２．０の範囲にあることに
より、優れた製品化率を得ることができ、またよりいっ
そうの脱リン効果を上げかつ持続性が向上する。 （３）第１項又は第２項において、アルミン酸カルシウ
ム含有物質は、ＣＡ（ＣａＯ・Ａｌ2 Ｏ3 ），Ｃ12Ａ7
（１２ＣａＯ・７Ａｌ2 Ｏ3 ），Ｃ11Ａ７（１１ＣａＯ
・７Ａｌ2 Ｏ3 ）を含む材料でステンレス鋼製造時に発
生する鉱滓又はアルミナセメントであることにより、経
済的に脱リン材を得ることができる。 （４）アルミン酸カルシウム含有物質と硫酸カルシウム
の合量の石灰質原料と珪酸質原料の合量への添加割合
は、石灰質原料と珪酸質原料の合量１００重量部に対し
て、５〜３０重量部であることにより、よりいっそう優
れた上記第１項記載の効果を奏するものである。(1) In the present invention, water is added to a total mixture of a mixture of a calcareous raw material and a siliceous raw material and a mixture of a calcium aluminate-containing substance and calcium sulfate, and the granulated material is subjected to autoclave curing. In particular, by adding a mixture of a calcium aluminate-containing substance and calcium sulfate, the product production rate is improved, and in a short time, the dephosphorization effect can be increased and the sustainability can be improved. It has the effect of being able to. (2) In the dephosphorizing material described in (1), the mixing ratio of the calcium aluminate-containing substance and calcium sulfate is SO 3 /
When the Al 2 O 3 molar ratio is in the range of 1.0 to 2.0, an excellent commercialization rate can be obtained, and the dephosphorization effect is further improved and the durability is improved. (3) In the first or second paragraph, the substance containing calcium aluminate is CA (CaO.Al 2 O 3 ), C 12 A 7
(12CaO · 7Al 2 O 3) , C 11 A7 (11CaO
( 7 ) A material containing 7Al 2 O 3 ), which is slag or alumina cement generated during the production of stainless steel, makes it possible to economically obtain a dephosphorizing material. (4) The addition ratio of the total amount of the calcium aluminate-containing substance and calcium sulfate to the total amount of the calcareous raw material and the siliceous raw material is 5 to 30 weight per 100 weight parts of the total amount of the calcareous raw material and the siliceous raw material. The effect of the above-mentioned item 1 is further improved by being a part.
【０００９】[0009]
【発明の実施の形態】以下に、本発明の実施の形態を更
に詳しく説明するが、本発明は、これらの記載に限定さ
れるものではない。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in more detail, but the present invention is not limited to these descriptions.
【００１０】本発明は、石灰質原料と珪酸質原料の混合
物及びアルミン酸カルシウム含有物質と硫酸カルシウム
の混合物を一緒にした全混合物に水を加えて造粒した粒
状物をオートクレーブ養生してなることを特徴とする脱
リン材であるが、特にアルミン酸カルシウム含有物質と
硫酸カルシウムの混合物を添加することにより、珪酸カ
ルシウム水和物の生成反応を促進させるという作用を有
する。また造粒物の表面には微細な結晶が全面に析出
し、リンとの反応が活性化し、除去効果が向上すると共
に持続性も向上する。The present invention provides an autoclave curing of granules obtained by adding water to a mixture of a calcareous material and a siliceous material and a mixture of a calcium aluminate-containing substance and a calcium sulfate. It is a dephosphorizing material characterized by an effect of accelerating the formation reaction of calcium silicate hydrate by adding a mixture of a calcium aluminate-containing substance and calcium sulfate. Further, fine crystals are precipitated on the entire surface of the granulated material, and the reaction with phosphorus is activated, so that the removal effect is improved and the durability is also improved.
【００１１】本発明に用いられる石灰質原料としては、
主にセメントが用いられ、その種類は特に限定されるも
のではないが、ポルトランドセメント、高炉セメントや
シリカセメント等の混合セメントが好ましい。また珪酸
質原料としては、珪砂、珪石、珪藻土、白土の微粉末等
が挙げられる。アルミン酸カルシウム含有物質として
は、具体的にはＣＡ（ＣａＯ・Ａｌ2 Ｏ3 ），Ｃ12Ａ7
（１２ＣａＯ・７Ａｌ2Ｏ3 ），Ｃ11Ａ７（１１ＣａＯ
・７Ａｌ2 Ｏ3 ）を含む材料であれば特に限定されない
が、ステンレス鋼製造時に発生する鉱滓又はアルミナセ
メントであることが好ましい。更に硫酸カルシウムとし
ては、各種の石膏でよく、二水石膏、無水石膏、半水石
膏等が挙げられるが、好ましくは二水石膏、無水石膏が
よい。The calcareous raw material used in the present invention includes:
Cement is mainly used, and the type thereof is not particularly limited. However, mixed cement such as Portland cement, blast furnace cement, and silica cement is preferable. Examples of the siliceous raw material include fine powder of silica sand, silica stone, diatomaceous earth, and clay. As the calcium aluminate-containing substance, specifically, CA (CaO.Al 2 O 3 ), C 12 A 7
(12CaO · 7Al 2 O 3) , C 11 A7 (11CaO
The material is not particularly limited as long as it is a material containing (7Al 2 O 3 ), but is preferably slag or alumina cement generated during the production of stainless steel. Further, the calcium sulfate may be various gypsums, such as gypsum dihydrate, anhydrous gypsum and gypsum hemihydrate, and preferably gypsum dihydrate and anhydrous gypsum.
【００１２】本発明に用いられるアルミン酸カルシウム
含有物質と硫酸カルシウムの混合割合は、ＳＯ3 ／Ａｌ
2 Ｏ3 モル比が０．５〜２．５の範囲であり、好ましく
は１．０〜２．０の範囲にある。この混合割合が１．０
〜２．０の範囲にあることによりいっそう優れた脱リン
効果及びその持続性を揺するものである。本発明におい
て、アルミン酸カルシウム含有物質と硫酸カルシウムの
合量の石灰質原料と珪酸質原料の合量への添加割合は、
石灰質原料と珪酸質原料の合量１００重量部に対して、
２．５〜４５重量部、好ましくは５〜３０重量部であ
る。この添加割合が石灰質原料と珪酸質原料の合量１０
０重量部に対して、５〜３０重量部の範囲においていっ
そう優れた製品化率、脱リン材の表面積の増加及び脱リ
ン効果とその持続性を有するものであり、２．５重量部
未満では、その効果に乏しく、また４５重量部を越えて
も十分な効果は得られない。The mixing ratio of the calcium aluminate-containing substance and calcium sulfate used in the present invention is SO 3 / Al
The 2 O 3 molar ratio is in the range of 0.5 to 2.5, preferably in the range of 1.0 to 2.0. This mixing ratio is 1.0
When it is in the range of ~ 2.0, the more excellent dephosphorization effect and its durability are shaken. In the present invention, the addition ratio of the total amount of the calcium aluminate-containing substance and calcium sulfate to the total amount of the calcareous raw material and the siliceous raw material is:
For a total of 100 parts by weight of calcareous material and siliceous material,
It is 2.5 to 45 parts by weight, preferably 5 to 30 parts by weight. This addition ratio is a total amount of the calcareous raw material and the siliceous raw material of 10
With respect to 0 parts by weight, in the range of 5 to 30 parts by weight, the product has a more excellent product conversion rate, an increase in the surface area of the dephosphorization material, a dephosphorization effect and its durability, and less than 2.5 parts by weight. The effect is poor, and even if it exceeds 45 parts by weight, a sufficient effect cannot be obtained.
【００１３】本発明の脱リン材は、石灰質原料と珪酸質
原料を混合し、これにアルミン酸カルシウム含有物質と
硫酸カルシウムの混合物を加えて混合した後、水を加え
て造粒し、得られた粒状物を水に浸漬した後、オートク
レーブ養生することにより製造される。この養生条件
は、通常この技術分野において用いられる範囲でよく、
好ましくは温度１８０℃〜２００℃、養生時間は２時間
〜１０時間で行われる。The dephosphorizing material of the present invention is obtained by mixing a calcareous raw material and a siliceous raw material, adding and mixing a mixture of a calcium aluminate-containing substance and calcium sulfate, and then adding water to granulate. It is manufactured by immersing the granulated material in water and then curing in an autoclave. The curing conditions may be in the range usually used in this technical field,
Preferably, the temperature is 180 ° C to 200 ° C, and the curing time is 2 hours to 10 hours.
【００１４】〔作用〕アルミン酸カルシウム含有物質と
硫酸カルシウムを添加することにより、珪酸カルシウム
水和物の生成反応を促進させるばかりでなく、セメント
の硬化を促進し１時間以内で水中浸漬が可能になり製造
時間を大幅に短縮できる。又造粒物の硬さが増すため、
水中浸漬やオートクレーブ養生時にも崩壊することな
く、製品の収率が優れるとともに、軽量物の製造が可能
になり、製品のかさ比重を変える事が容易になる。[Function] By adding a calcium aluminate-containing substance and calcium sulfate, not only the formation reaction of calcium silicate hydrate is promoted, but also the hardening of cement is promoted and immersion in water within one hour becomes possible. Production time can be greatly reduced. Also, because the hardness of the granulated material increases,
It does not collapse during immersion in water or curing in an autoclave, so that the product yield is excellent, a light-weight product can be manufactured, and the bulk specific gravity of the product can be easily changed.
【００１５】[0015]
【実施例】〔実施例１〕ステンレス鋼製造時に発生する
鉱滓（ブレーン粉末度：４０００ｃｍ2 ／ｇ）と無水石
膏（タイ国産、ブレーン粉末度：２０００ｃｍ2 ／ｇ）
をＳＯ3 ／Ａｌ2 Ｏ3 モル比が１．５になるように混合
した。これら混合物を表１に示す割合で、普通ポルトラ
ンドセメント（三菱マテリアル製）と珪石微粉末（敦賀
セメント製・粉末度：３７００ｃｍ2 ／ｇ）に加えて乾
式混合して原料混合物を得た。この時の普通ポルトラン
ドセメントと珪石微粉末の混合割合は、ＣａＯ／ＳｉＯ
２モル比が０．８になるように適宜混合した。[Example 1] Slag generated during the production of stainless steel (Brain fineness: 4000 cm 2 / g) and anhydrous gypsum (Thailand, Blaine fineness: 2000 cm 2 / g)
Were mixed so that the molar ratio of SO 3 / Al 2 O 3 became 1.5. The mixture was added to ordinary Portland cement (manufactured by Mitsubishi Materials) and fine silica powder (manufactured by Tsuruga Cement, fineness: 3700 cm 2 / g) at the ratios shown in Table 1 and dry-mixed to obtain a raw material mixture. At this time, the mixing ratio of the ordinary Portland cement and the fine silica powder is CaO / SiO.
The mixture was appropriately mixed such that the 2 molar ratio became 0.8.
【００１６】これら原料混合物をパン型ペレタイザーに
入れ、水を噴霧しながら転動造粒した。得られた造粒物
（１．６〜２．４ｍｍ）を常温にて１時間放置後、水に
浸漬して、オートクレーブ養生（養生温度：１８０℃、
保持時間：８時間）して脱リン材を製造した。別にセメ
ントと珪石微粉末を原料とし、ＣａＯ／ＳｉＯ２モル比
が０．８になるように混合した乾式混合を上記と同様に
転動造粒し、常温における放置時間を１時間（比較
１）、１８時間（比較２、通常製造）にした脱リン材を
作り比較した。得られた脱リン材は、製品化率を計算し
た後、比表面積およびリン除去率の測定をした。図１に
示される装置を用いて、リン除去率は、５００ｍｌ容量
のメスシリンダーに脱リン材を２５０ｍｌ入れ、リン濃
度１００ｍｇ／ｌの人工汚水を２５０ｍｌ入れた。その
後、速度８０ｍｌ／分で循環させ、経過時間毎の汚水の
リン濃度を測定した。結果を表１に示す。The raw material mixture was placed in a pan-type pelletizer and tumbled and granulated while spraying water. The obtained granules (1.6 to 2.4 mm) were left at room temperature for 1 hour, immersed in water, and cured in an autoclave (curing temperature: 180 ° C,
(Retention time: 8 hours) to produce a dephosphorized material. Separately, dry mixing in which cement and fine silica powder were used as raw materials and the CaO / SiO2 molar ratio was 0.8 was rolled and granulated in the same manner as described above, and the standing time at room temperature was 1 hour (Comparative 1). A dephosphorizing material was prepared for 18 hours (Comparative 2, normal production) and compared. After calculating the commercialization rate of the obtained dephosphorized material, the specific surface area and the phosphorus removal rate were measured. Using the apparatus shown in FIG. 1, the phosphorus removal rate was such that 250 ml of a dephosphorizing material was placed in a 500 ml measuring cylinder, and 250 ml of artificial wastewater having a phosphorus concentration of 100 mg / l. Thereafter, the wastewater was circulated at a rate of 80 ml / min, and the phosphorus concentration of the wastewater was measured at each elapsed time. Table 1 shows the results.
【００１７】[0017]
【表１】 表１から明らかなように、本発明の脱リン材は、製品化
率も優れ、脱リン材の表面積が向上し、脱リン効率が増
加しており、更にその持続性も向上していることがわか
る。[Table 1] As is clear from Table 1, the dephosphorizing material of the present invention has an excellent product ratio, an increased surface area of the dephosphorizing material, an increased dephosphorization efficiency, and an improved sustainability. I understand.
【００１８】〔実施例２〕アルミナセメント（ブレーン
粉末度：３９５０ｃｍ2 ／ｇ）と無水石膏（タイ国産、
ブレーン粉末度：２０００ｃｍ2 ／ｇ）をＳＯ3 ／Ａｌ
2 Ｏ3モル比が表２に示すように混合した。これら混合
物２０重量部に普通ポルトランドセメント（三菱マテリ
アル製）４８重量部と珪石微粉末（敦賀セメント製・粉
末度：３７００ｃｍ2 ／ｇ）３２重量部を加えて乾式混
合した。これら乾式混合物は、実施例１と同条件で脱リ
ン材を製造した。得られた脱リン材は、製品化率を計算
した後、実施例１と同様な方法でリン除去率の測定をし
た。また、粉砕してＸ線回折を行い、生成物の確認をし
た。Example 2 Alumina cement (Brain fineness: 3950 cm 2 / g) and anhydrous gypsum (produced in Thailand,
Blaine Fineness: 2000cm 2 / g) of SO 3 / Al
The 2 O 3 molar ratio was mixed as shown in Table 2. To 20 parts by weight of these mixtures, 48 parts by weight of ordinary Portland cement (manufactured by Mitsubishi Materials) and 32 parts by weight of fine silica powder (manufactured by Tsuruga Cement, fineness: 3700 cm 2 / g) were added and dry mixed. From these dry mixtures, dephosphorizing materials were produced under the same conditions as in Example 1. After calculating the product conversion rate of the obtained dephosphorized material, the phosphorus removal rate was measured in the same manner as in Example 1. Further, the product was crushed and subjected to X-ray diffraction to confirm the product.
【００１９】[0019]
【表２】 表２から明らかなように、ＳＯ3 ／Ａｌ2 Ｏ3 モル比が
特に１．０乃至２．０の時、極めて製品化率がよく、ま
た脱リン効率とその持続性に優れていることがわかる。[Table 2] As is clear from Table 2, when the molar ratio of SO 3 / Al 2 O 3 is particularly 1.0 to 2.0, the product commercialization rate is extremely good, and the dephosphorization efficiency and the sustainability thereof are excellent. Understand.
【００２０】〔実施例３〕図２に示される連続通水実験
装置を用いて長期持続性試験をおこなった。長さ１ｍ、
直径３０ｍｍの円筒に試験Ｎｏ．３の脱リン材（本発
明：表１）と比較２（表１）の脱リン材をそれぞれ１５
０ｍｌ入れ、リン濃度４０ｍｇ／リットルの人工汚水を
通水速度１５０ｍｌ／ｈｒ、上向流で連続して流した。
人工汚水は８０ｍｇ／リットルの循環速度で脱リン材が
流動するように循環させた。その場合の経過時間に伴う
人工汚染水中のリン濃度をそれぞれ測定した。結果を表
３に示す。Example 3 A long-term durability test was performed using the continuous water flow test apparatus shown in FIG. 1m in length,
Test No. was placed on a cylinder having a diameter of 30 mm. Each of the dephosphorized material of Comparative Example 3 (Table 1) and the dephosphorized material of Comparative Example 2 (Table 1)
0 ml was added, and artificial sewage having a phosphorus concentration of 40 mg / liter was continuously flowed upward at a water flow rate of 150 ml / hr.
The artificial sewage was circulated at a circulation rate of 80 mg / liter so that the dephosphorizing material flowed. The phosphorus concentration in the artificially contaminated water with the elapsed time in that case was measured respectively. Table 3 shows the results.
【００２１】[0021]
【表３】 [Table 3]
【００２２】[0022]
【発明の効果】本発明の脱リン材によれば、アルミン酸
カルシウム含有物質と硫酸カルシウムの混合物を添加す
ることにより、製品化率が向上し、短時間で、脱リン効
果を上げかつ持続性を向上させることができるという効
果を奏する。また本発明の脱リン材において、アルミン
酸カルシウム含有物質と硫酸カルシウムの混合割合はＳ
Ｏ3 ／Ａｌ2 Ｏ3 モル比が１．０〜２．０の範囲にある
ことにより、優れた製品化率を得ることができ、またよ
りいっそうの脱リン効果を上げかつ持続性が向上する。
更に本発明において、アルミン酸カルシウム含有物質と
硫酸カルシウムの合量の石灰質原料と珪酸質原料の合量
への添加割合は、石灰質原料と珪酸質原料の合量１００
重量部に対して、５〜３０重量部であることにより、よ
りいっそう優れた製品化率の向上、短時間でオートクレ
ーブ養生ができる、脱リン効果を上げかつ持続性の向上
という効果を奏する。According to the dephosphorizing material of the present invention, by adding a mixture of a calcium aluminate-containing substance and calcium sulfate, the product production rate is improved, the dephosphorizing effect is increased in a short time, and the sustainability is improved. The effect that it can improve is produced. In the dephosphorizing material of the present invention, the mixing ratio between the calcium aluminate-containing substance and calcium sulfate is S
When the molar ratio of O 3 / Al 2 O 3 is in the range of 1.0 to 2.0, an excellent commercialization rate can be obtained, and the dephosphorization effect is further improved and the durability is improved. .
Further, in the present invention, the addition ratio of the total amount of the calcium aluminate-containing substance and the calcium sulfate to the total amount of the calcareous raw material and the siliceous raw material is 100%.
When the amount is 5 to 30 parts by weight with respect to the parts by weight, an effect of further improving the productization rate, enabling autoclave curing in a short time, improving the dephosphorization effect, and improving the sustainability is exhibited.
【図１】本発明に用いられる回分実験装置を示す断面図
である。FIG. 1 is a sectional view showing a batch experiment apparatus used in the present invention.
【図２】本発明に用いられる連続通水実験装置を示す断
面図である。FIG. 2 is a sectional view showing a continuous water flow experiment device used in the present invention.
１ 円筒 ２ 脱リン材 ３ ガラスビーズ ４ ポンプ ５ 原水 ６ 処理水 1 Cylinder 2 Dephosphorizing material 3 Glass bead 4 Pump 5 Raw water 6 Treated water
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福島 祐一 埼玉県大宮市北袋町一丁目297番地 株式 会社宇部三菱セメント研究所内 (72)発明者 森山 克美 福岡県古賀市舞の里１−10−２ Ｆターム(参考） 4D024 AA04 AB12 BA11 BA13 BB01 4G066 AA17A AA20A AA30A AA30B AA47A AA73A AA75A BA26 CA41 DA08 FA02 FA12 FA21 FA26 FA37 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Fukushima 1-297 Kitabukurocho, Omiya City, Saitama Prefecture Inside Ube-Mitsubishi Cement Research Institute Co., Ltd. (72) Katsumi Moriyama 1-10-2 Mai nori, Koga City, Fukuoka Prefecture (Reference) 4D024 AA04 AB12 BA11 BA13 BB01 4G066 AA17A AA20A AA30A AA30B AA47A AA73A AA75A BA26 CA41 DA08 FA02 FA12 FA21 FA26 FA37
Claims (4)
ミン酸カルシウム含有物質と硫酸カルシウムの混合物を
一緒にした全混合物に水を加えて造粒した粒状物をオー
トクレーブ養生してなることを特徴とする脱リン材。1. A granulated material obtained by adding water to a mixture of a calcareous raw material and a siliceous raw material and a total mixture of a calcium aluminate-containing substance and a calcium sulfate mixture, and subjecting the mixture to autoclave curing. Dephosphorizing material.
シウムの混合割合はＳＯ3 ／Ａｌ2 Ｏ3 モル比が１．０
〜２．０の範囲にあることを特徴とする請求項１に記載
の脱リン材。2. The mixing ratio between the calcium aluminate-containing substance and calcium sulfate is such that the molar ratio of SO 3 / Al 2 O 3 is 1.0.
The dephosphorizing material according to claim 1, which is in a range of -2.0.
（ＣａＯ・Ａｌ2 Ｏ3），Ｃ12Ａ7 （１２ＣａＯ・７Ａ
ｌ2 Ｏ3 ），Ｃ11Ａ７（１１ＣａＯ・７Ａｌ2Ｏ3 ）を
含む材料でステンレス鋼製造時に発生する鉱滓又はアル
ミナセメントであることを特徴とする請求項１又は請求
項２に記載の脱リン材。3. The calcium aluminate-containing substance is CA
(CaO.Al 2 O 3 ), C 12 A 7 (12CaO.7A)
l 2 O 3), C 11 A7 ( dephosphorization of claim 1 or claim 2, characterized in that the slag or alumina cement produced stainless steel during manufacture of a material containing a 11CaO · 7Al 2 O 3) Wood.
シウムの合量の石灰質原料と珪酸質原料の合量への添加
割合は、石灰質原料と珪酸質原料の合量１００重量部に
対して、５〜３０重量部であることを特徴とする請求項
１乃至請求項３に記載の脱リン材。4. The addition ratio of the total amount of the calcium aluminate-containing substance and calcium sulfate to the total amount of the calcareous raw material and the siliceous raw material is 5 to 5 parts by weight based on 100 weight parts of the total amount of the calcareous raw material and the siliceous raw material. 4. The dephosphorizing material according to claim 1, wherein the amount is 30 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34316099A JP2001157837A (en) | 1999-12-02 | 1999-12-02 | Dephosphorizing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34316099A JP2001157837A (en) | 1999-12-02 | 1999-12-02 | Dephosphorizing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001157837A true JP2001157837A (en) | 2001-06-12 |
Family
ID=18359388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34316099A Withdrawn JP2001157837A (en) | 1999-12-02 | 1999-12-02 | Dephosphorizing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001157837A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004249151A (en) * | 2003-02-18 | 2004-09-09 | Denki Kagaku Kogyo Kk | Exhaust gas treatment material, gas filter, and exhaust gas treatment method using them |
| JP2008259957A (en) * | 2007-04-11 | 2008-10-30 | Denki Kagaku Kogyo Kk | Treatment material of food processing wastewater and treatment method of food processing wastewater |
| WO2023017199A1 (en) | 2021-08-10 | 2023-02-16 | Advanced Thermal Devices S.L. | Cathode based on the material c12a7:e− (electride) for thermionic electron emission and method for using same |
-
1999
- 1999-12-02 JP JP34316099A patent/JP2001157837A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004249151A (en) * | 2003-02-18 | 2004-09-09 | Denki Kagaku Kogyo Kk | Exhaust gas treatment material, gas filter, and exhaust gas treatment method using them |
| JP4615829B2 (en) * | 2003-02-18 | 2011-01-19 | 電気化学工業株式会社 | Exhaust gas treatment material, gas filter, and exhaust gas treatment method using them |
| JP2008259957A (en) * | 2007-04-11 | 2008-10-30 | Denki Kagaku Kogyo Kk | Treatment material of food processing wastewater and treatment method of food processing wastewater |
| WO2023017199A1 (en) | 2021-08-10 | 2023-02-16 | Advanced Thermal Devices S.L. | Cathode based on the material c12a7:e− (electride) for thermionic electron emission and method for using same |
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