JPH01315388A - Method for removing phosphorus in water by means of multistage sand filter - Google Patents
Method for removing phosphorus in water by means of multistage sand filterInfo
- Publication number
- JPH01315388A JPH01315388A JP14480288A JP14480288A JPH01315388A JP H01315388 A JPH01315388 A JP H01315388A JP 14480288 A JP14480288 A JP 14480288A JP 14480288 A JP14480288 A JP 14480288A JP H01315388 A JPH01315388 A JP H01315388A
- Authority
- JP
- Japan
- Prior art keywords
- water
- phosphorus
- anthracite
- stage
- sand filter
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 19
- 239000011574 phosphorus Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 10
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003830 anthracite Substances 0.000 claims abstract description 12
- 235000014564 Platymiscium pinnatum Nutrition 0.000 claims description 7
- 240000002954 Platymiscium pinnatum Species 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 1
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 241000169203 Eichhornia Species 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- FPWJLQXCGHQXLL-UHFFFAOYSA-N [P].OP(O)(O)=O Chemical compound [P].OP(O)(O)=O FPWJLQXCGHQXLL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、湖沼や河川水の富栄養化防止はもとより、下
水処理施設や産業排水とりわけ畜産排水処理施設などの
広い分野の水中の燐の除去法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention is applicable to the prevention of eutrophication of lakes and rivers, as well as to the prevention of phosphorus in water in a wide range of fields such as sewage treatment facilities, industrial wastewater, especially livestock wastewater treatment facilities. It concerns removal methods.
（従来技術）
湖沼、河川水、各種処理場の排水などの水中の栄養塩類
の除去技術はおくれでおり、（１）ホティアオイの植栽
による浄化法、（２）本発明者らによる水砕スラップお
よびゼオライトを利用した富栄養塩類の除去法（特願昭
６２−１７２１０５号）の２方式が知られている程度で
ある。(Prior art) Technology for removing nutrients from water such as lake water, river water, and wastewater from various treatment plants is lagging behind. There are only two known methods: and a method for removing eutrophic salts using zeolite (Japanese Patent Application No. 172105/1982).
（発明が解決しようとする問題点）
ホティアオイによる浄化法は、千葉県手賀沼や茨城県千
波湖等で実施されているが、植栽期間が６月から９月の
夏期であって短期間であり、その上ホティアオイによる
燐の取り込み量も著しく小さく、湖沼等の燐の除去法と
しては余り効果がない。また、本発明者らの提案した水
砕スラップおよびゼオライトを利用した富栄養塩類の除
去法では、（１）アンモニア性窒素が１５分以内の接触
時間で８５〜９５％の高い除去率を示すのに対しく２）
燐の除去率を９０％とするためには３０分以上の接触時
間が必要であり、それだけ充填層を厚くする必要がある
こと、（３）また、処理水中の有機物、無機物より成る
ＳＳが水砕スラップ、ゼオライトの細孔を埋めてしまう
ために燐の除去能を著しく低下させること、などの欠点
があった。(Problem to be solved by the invention) The purification method using water hyacinth has been implemented in Teganuma, Chiba Prefecture, Senba Lake, Ibaraki Prefecture, etc., but the planting period is in the summer from June to September, and it is a short period of time. Furthermore, the amount of phosphorus taken up by water hyacinth is extremely small, making it ineffective as a method for removing phosphorus from lakes and marshes. In addition, the method for removing eutrophic salts using granulated slurry and zeolite proposed by the present inventors shows (1) a high removal rate of 85 to 95% of ammonia nitrogen within a contact time of 15 minutes; Against 2)
In order to achieve a phosphorus removal rate of 90%, a contact time of 30 minutes or more is required, and the packed bed must be made thicker accordingly. It has disadvantages such as crushed slurp and phosphorus removal ability that is significantly reduced because it fills the pores of the zeolite.
（問題点を解決するための手段）
本発明者らは、これらの欠点を除くために鋭意研究を重
ねた結果、（１）表１に示すように、クリストバール鉱
石による燐の除去速度の方が、水砕スラップによる燐の
除去速度よりも速く、その上除去率も高いこと、（２）
前段にアンスラサイト層を置くと細孔の目づまり等がな
く長時間、高除去率での燐の除去が可能であること、（
３）アンスラサイトの粒子が余り小さいと処理水のが過
速度が小さくなり、一方、粒子が余り大きいと処理水中
のＳＳがアンスラサイト層を通過してクリストバール鉱
石の表面に付着し、細孔を埋めること、などを知見した
。(Means for Solving the Problems) As a result of extensive research to eliminate these drawbacks, the present inventors have found that (1) as shown in Table 1, the rate of phosphorus removal by Cristobal ore is faster. is faster than the phosphorus removal rate by granulated slurp, and the removal rate is also high; (2)
By placing an anthracite layer in the front stage, it is possible to remove phosphorus at a high removal rate for a long time without clogging the pores.
3) If the anthracite particles are too small, the overvelocity of the treated water will be small; on the other hand, if the particles are too large, the SS in the treated water will pass through the anthracite layer and adhere to the surface of the Cristobal ore, causing pores to deteriorate. I found out things like filling in the gaps.
本発明は上記の知見に基ずくもので、クリストバール鉱
石の粉砕生成物を、０．５ｍｉ〜３ＩＩｍの粒子径範囲
に調製したアンスラサイトの後段に組み込んだ多段式サ
ンドフィルターによる水中の燐酸性燐の除去法である１
本発明で使用するクリストバール鉱石は、鉱石のＰＨが
７よりも低い酸性（ＰＨ５，８〜６．５）を示すもので
あって、水砕スラッグ、ゼオライトのようなアルカリ性
のものとは異なっており、これが燐との反応を促進して
いる。また、細孔も巾があり、これが排水の通過を容易
にし、短時間の接触時間での燐の除去効果をあげている
。前段のアンスラサイトの粒子径を０．５＋ａ〜３ｍと
したのは、０．５−以下の粒子径では処理水中のＳＳに
よる目すまりが著しいのと、逆洗時または投入時の沈降
がおそくて取り扱いが不便であるためである。また３■
以上では、前段にアンスラサイトを置いた目的であるＳ
Ｓの除去が十分でなくなるために不適となる。The present invention is based on the above-mentioned knowledge, and the present invention is based on the phosphoric acid phosphorus in water using a multi-stage sand filter in which the crushed product of Cristobal ore is incorporated into the latter stage of anthracite prepared to have a particle size in the range of 0.5 mi to 3 II m. 1 is the removal method of
The Cristobal ore used in the present invention is an acidic ore with a pH lower than 7 (PH5.8 to 6.5), and is different from alkaline ones such as granulated slag and zeolite. This promotes the reaction with phosphorus. The pores are also wide, which facilitates the passage of waste water and improves the effectiveness of phosphorus removal in a short contact time. The reason why the particle size of the anthracite in the first stage is set to 0.5+a to 3m is because if the particle size is 0.5- or less, clogging due to SS in the treated water is significant, and sedimentation during backwashing or charging is slow. This is because it is inconvenient to handle. Also 3■
In the above, the purpose of placing anthracite in the first stage is S.
This is unsuitable because S removal is not sufficient.
表１． 燐の除去試験結果
注：原水中の燐成分濃度０．５〜２■／Ｑ本発明で使用
する多段型サンドフィルターは第１図に示すような、た
て型でも、第２図に示すような横型でも良い、又、第３
図及び第４図に示すように、クリストバール鉱石層の後
段にゼオライト層を設置しても良い。Table 1. Phosphorus removal test results Note: Phosphorus component concentration in raw water 0.5 to 2/Q A horizontal type is also fine, or a third
As shown in the figures and FIG. 4, a zeolite layer may be installed after the Cristobal ore layer.
（実施例）
茨城県土浦市の新月および大塚池から用水（燐酸性燐０
．０５〜０．５に／ｊｍ）を３−／ｈ汲み上げ１本発明
によるアンスラサイトの後段にクリストバール鉱石層を
備えた多段型サンドフィルターで現地試験を行ったとこ
ろ、従来の水砕スラップ方式の燐の除去率が７５％であ
ったのに対し、９０％以上の除去率を示した。また寿命
も約１０倍であった。(Example) Water from Shingetsu and Otsuka Pond in Tsuchiura City, Ibaraki Prefecture (phosphorus acid 0
．． 05~0.5/jm) pumped 3-/h 1A field test was conducted using a multi-stage sand filter equipped with an anthracite layer and a Cristobal ore layer after the anthracite layer according to the present invention. While the phosphorus removal rate was 75%, the removal rate was over 90%. Furthermore, the lifespan was approximately 10 times longer.
（発明の効果）
本発明によれば、簡単な装置により長時間にわたり、高
い除去率で燐の除去が可能であるので。(Effects of the Invention) According to the present invention, phosphorus can be removed with a high removal rate over a long period of time using a simple device.
その実用上の価値は大である。Its practical value is great.
第１図〜第４図はそれぞれ本発明に係る方法を実施した
装置の概略図である。1 to 4 are schematic diagrams of apparatuses implementing the method according to the invention, respectively.
Claims (1)
の粒子径範囲に調製したアンスラサイトの後段に組み込
んだ多段型サンドフィルターによる水中の燐酸性燐の除
去法。Crushed product of Cristobal ore to 0.5mm to 3mm
A method for removing acidic phosphorus in water using a multi-stage sand filter installed after anthracite prepared in a particle size range of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14480288A JPH01315388A (en) | 1988-06-14 | 1988-06-14 | Method for removing phosphorus in water by means of multistage sand filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14480288A JPH01315388A (en) | 1988-06-14 | 1988-06-14 | Method for removing phosphorus in water by means of multistage sand filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01315388A true JPH01315388A (en) | 1989-12-20 |
| JPH0468034B2 JPH0468034B2 (en) | 1992-10-30 |
Family
ID=15370804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14480288A Granted JPH01315388A (en) | 1988-06-14 | 1988-06-14 | Method for removing phosphorus in water by means of multistage sand filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01315388A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5972211A (en) * | 1998-03-19 | 1999-10-26 | Jones; Terry L. | Water filtration system |
| CN103785357A (en) * | 2014-01-17 | 2014-05-14 | 中国科学院南京土壤研究所 | Method for preparing lanthanum-loaded charcoal used for purifying phosphorus polluted water |
-
1988
- 1988-06-14 JP JP14480288A patent/JPH01315388A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5972211A (en) * | 1998-03-19 | 1999-10-26 | Jones; Terry L. | Water filtration system |
| CN103785357A (en) * | 2014-01-17 | 2014-05-14 | 中国科学院南京土壤研究所 | Method for preparing lanthanum-loaded charcoal used for purifying phosphorus polluted water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468034B2 (en) | 1992-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |