JPH01245898A - Porous purifying material for treatment of organic waste water - Google Patents
Porous purifying material for treatment of organic waste waterInfo
- Publication number
- JPH01245898A JPH01245898A JP63072425A JP7242588A JPH01245898A JP H01245898 A JPH01245898 A JP H01245898A JP 63072425 A JP63072425 A JP 63072425A JP 7242588 A JP7242588 A JP 7242588A JP H01245898 A JPH01245898 A JP H01245898A
- Authority
- JP
- Japan
- Prior art keywords
- calcium silicate
- porous
- silicate hydrate
- purifying
- purifying material
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 3
- 239000010815 organic waste Substances 0.000 title 1
- 239000000378 calcium silicate Substances 0.000 claims abstract description 25
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 25
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims description 31
- 244000005700 microbiome Species 0.000 claims description 23
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 5
- 210000002700 urine Anatomy 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は家畜の尿汚水、生活雑排水、下水等の有機性排
水を浄化処理するために使用される多孔質浄化材に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a porous purifying material used for purifying organic wastewater such as livestock urine wastewater, gray water, and sewage.
［従来技術及び発明が解決しようとする課題］従来から
前記各種有機性排水を浄化する方法として、ケイ酸カル
シウム水和物を主成分とする粒状の多孔質浄化材を使用
する方法がある（特開昭６２−１８３８９８号公報）。[Prior Art and Problems to be Solved by the Invention] Conventionally, as a method for purifying the above-mentioned various organic wastewaters, there is a method of using a granular porous purifying material containing calcium silicate hydrate as a main component (particularly Publication No. 183898/1983).
この方法によれば、前記多孔質浄化材が有するカルシウ
ムイオンの作用により、有機性排水中のリンを除去でき
るとともに、同有機性排水中の微生物が多孔質浄化材の
表面に付着して、これが有機性排水中の有機物を捕捉す
るという優れた効果を発揮する。According to this method, phosphorus in organic wastewater can be removed by the action of calcium ions possessed by the porous purification material, and microorganisms in the organic wastewater adhere to the surface of the porous purification material. It has an excellent effect of capturing organic matter in organic wastewater.
しかしながら、前記多孔質浄化材は長期間使用されると
、ケイ酸カルシウムが有機性排水中に溶出して粒径が小
さくなってしまう。そのため、浄化処理装置内でのフィ
ルタバス量が多くなったり、多孔質浄化材の浄化能力そ
のものが低下したりする。そこで、このような場合、粒
径が小さくなった多孔質浄化材を廃棄し、新しい多孔質
浄化材と交換する方法が採用される。However, when the porous purifying material is used for a long period of time, calcium silicate is eluted into the organic wastewater and the particle size becomes small. As a result, the amount of filter bath in the purification treatment apparatus increases, and the purification ability of the porous purification material itself decreases. Therefore, in such cases, a method is adopted in which the porous purifying material whose particle size has become smaller is discarded and replaced with a new porous purifying material.
ところが、この方法によると新しい多孔質浄化材の表面
に微生物が付着し、かつこの微生物が浄化処理環境に馴
化するまでには長期間（約１カ月）かかり、この間は十
分な浄化処理能力が発揮されないという問題があった。However, with this method, it takes a long time (approximately one month) for microorganisms to adhere to the surface of the new porous purification material and for these microorganisms to become accustomed to the purification treatment environment, and during this time, sufficient purification ability is exerted. There was a problem that it was not done.
本発明の目的は、有機性排水中の微生物が表面に付着し
、浄化処理環境に馴化するまでの時間を短くでき、ひい
ては早期に浄化処理能を発揮させることが可能な多孔質
浄化材を提供することにある。An object of the present invention is to provide a porous purification material that can shorten the time it takes for microorganisms in organic wastewater to adhere to the surface and become acclimatized to the purification treatment environment, and that can exhibit purification treatment ability at an early stage. It's about doing.
［課題を解決するための手段］
そこで、前記目的を達成すべく本発明は、有機性排水と
接触して微生物が付着したケイ酸カルシウム水和物２０
〜８０重量部に、実質上微生物が付着していないケイ酸
カルシウム水和物を８０〜２０重量部の割合で混合し、
その混合物を粒状にしてなる有機性排水処理用の多孔質
浄化材をその要旨とするものである。[Means for Solving the Problem] Therefore, in order to achieve the above object, the present invention provides calcium silicate hydrate 20 to which microorganisms have adhered upon contact with organic wastewater.
~80 parts by weight is mixed with 80 to 20 parts by weight of calcium silicate hydrate to which virtually no microorganisms are attached,
The gist of this invention is a porous purifying material for treating organic wastewater, which is made by granulating the mixture.
［作用］
多孔質浄化材中には有機性排水と接触して付着した微生
物が存在するので、この多孔質浄化材を有機性排水の浄
化処理に使用した場合、同有機性排水内に存在する微生
物が、前記多孔質浄化材に付着していた微生物の作用に
より浄化処理環境に対して馴化され、浄化処理能力を有
するようになる。従って、本発明の多孔質浄化材は浄化
処理能力が低下した多孔質浄化材を全て新しいものと交
換した場合より浄化処理能力を早期に発揮する。[Function] Microorganisms that adhere to organic wastewater are present in the porous purification material, so when this porous purification material is used for purification treatment of organic wastewater, microorganisms that are present in the organic wastewater are present. The microorganisms attached to the porous purification material become accustomed to the purification treatment environment and have purification ability. Therefore, the porous purifying material of the present invention exhibits its purifying ability earlier than when all porous purifying materials whose purifying ability has decreased are replaced with new ones.
［実施例］ 以下、本発明を具体化した一実施例を説明する。[Example] An embodiment embodying the present invention will be described below.
本実施例の多孔質浄化材は家畜の尿汚水、生活雑排水、
下水等の有機性排水と接触して微生物が付着したケイ酸
カルシウム水和物２０〜８０重量部に、実質上微生物が
付着していないケイ酸カルシウム水和物を、合計で１０
０重量部となるように、８０〜２０重量部の割合で混合
し、その混合物を粒状にしたものである。同多孔質浄化
材は、表面に多数の空隙を有し、かつ粒径が５〜３０鳳
＊、嵩比重が約０．５に形成されている。The porous purification material of this example is used for livestock urine sewage, domestic wastewater,
A total of 10 to 80 parts by weight of calcium silicate hydrate to which microorganisms have adhered due to contact with organic wastewater such as sewage, and 10 to 80 parts by weight of calcium silicate hydrate to which microorganisms are not substantially attached.
They are mixed at a ratio of 80 to 20 parts by weight so that the total weight is 0 parts by weight, and the mixture is made into granules. The porous purifying material has a large number of voids on its surface, has a particle size of 5 to 30*, and has a bulk specific gravity of approximately 0.5.
ケイ酸カルシウム水和物は珪石、珪砂等のケイ酸質原料
及び石灰質原料を主原料として、これらを調合し、適量
の水及び気泡剤等を加え発泡させた後、約１８０℃の飽
和水蒸気でオートクレーブ養生して粒状に形成したもの
であり、表面に多数の空隙が形成されている。このケイ
酸カルシウム水和物は、その表面への微生物の付着が良
好であるとともに、脱リン作用を有し、かつ処理水をｐ
Ｈ８前後に維持するｐＨ緩衝能を備えている。Calcium silicate hydrate is produced by mixing silicic acid raw materials such as silica stone and silica sand, and calcareous raw materials as main raw materials, adding an appropriate amount of water and a foaming agent, etc., and foaming them. It is formed into granules by curing in an autoclave, and many voids are formed on the surface. This calcium silicate hydrate has good adhesion of microorganisms to its surface, has a dephosphorizing effect, and reduces treated water
It has a pH buffering ability to maintain around H8.
また、前者のケイ酸カルシウム水和物は、ケイ酸カルシ
ウム水和物を有機性排水中に浸漬して有機性排水の浄化
処理を行うと、その表面に微生物及びリン酸カルシウム
が付着する。なお、ケイ酸カルシウム水和物の表面に微
生物及びリン酸カルシウムが付着しているか否かは、顕
微鏡で観察することにより容易に判別できる。In addition, when the former calcium silicate hydrate is immersed in organic wastewater to purify the organic wastewater, microorganisms and calcium phosphate adhere to its surface. Note that whether or not microorganisms and calcium phosphate are attached to the surface of the calcium silicate hydrate can be easily determined by observing with a microscope.
ところで、本発明の多孔質浄化材は次のようにして製造
される。まず、使用済みのケイ酸カルシウム水和物を粉
砕機によって粉末状にする。この状態では、ケイ酸カル
シウム水和物表面に付着していた微生物は仮死状態で残
っている。次に、新しいケイ酸カルシウム水和物を同様
にして粉末状にする。そして、両者の混合比が２０〜８
０重量部：８０〜２０重量部となるようにこれらを混合
した後、バインダを注入し混練する。このバインダとし
てはアクリル樹脂等の高分子樹脂からなるエマルジョン
タイプの糊付を用いるのが好ましい。By the way, the porous purifying material of the present invention is manufactured as follows. First, used calcium silicate hydrate is pulverized using a pulverizer. In this state, the microorganisms attached to the surface of the calcium silicate hydrate remain in an suspended animation state. Next, the new calcium silicate hydrate is powdered in the same way. And the mixing ratio of both is 20-8
After mixing these so that the amount becomes 0 parts by weight: 80 to 20 parts by weight, a binder is injected and kneaded. As this binder, it is preferable to use an emulsion type glue made of a polymer resin such as acrylic resin.
続いて、前記混練物を造粒機に投入して生ベレットを製
造し、振動篩を用いてその生ペレットの粒度をそろえる
。そして、再度振動篩により生ベレー／ ）を選別する
と、均一な粒度の多孔質浄化材が得られる。Subsequently, the kneaded material is put into a granulator to produce green pellets, and the particle size of the green pellets is made uniform using a vibrating sieve. Then, when the raw beret/ ) is screened again using a vibrating sieve, a porous purifying material with uniform particle size is obtained.
このようにして形成された多孔質浄化材には微生物が付
着している。そのため、この多孔質浄化材を用いれば、
浄化処理能力が低下した全ての多孔質浄化材を新しい多
孔質浄化材と入れ換えた場合に比べて、早く浄化処理能
力を発揮する。その理由は、多孔質浄化材に付着してい
る微生物の作用により、新たに付着した微生物が浄化処
理環境に対して馴化され、その結果、浄化処理能力を有
するようになるからであると思われる。Microorganisms are attached to the porous purifying material thus formed. Therefore, if this porous purifying material is used,
The purification ability is exhibited more quickly than when all the porous purification materials whose purification ability has decreased are replaced with new porous purification materials. The reason for this is thought to be that the newly attached microorganisms become accustomed to the purification treatment environment due to the action of the microorganisms attached to the porous purification material, and as a result, they become capable of purification treatment. .
このことを確認するため、使用済みのケイ酸カルシウム
水和物Ａと、新しいケイ酸カルシウム水和物Ｂとの混合
比（Ａ／Ｂ）を４水準設定し、各水準毎に微生物が浄化
処理環境に馴化するまでに要した期間、及びリンの除去
率を測定した。その測定結果を次表に示す。In order to confirm this, we set four levels of the mixing ratio (A/B) of used calcium silicate hydrate A and new calcium silicate hydrate B, and at each level, microorganisms perform a purification process. The period required to acclimate to the environment and the phosphorus removal rate were measured. The measurement results are shown in the table below.
この表から、多孔質浄化材における使用済みのケイ酸カ
ルシウム永和物の量が多くなるほど、リンの除去率が低
下するものの、微生物の馴化に要する期間が短くなり、
早期に浄化処理能力を発揮することがわかる。From this table, it can be seen that as the amount of used calcium silicate perpetuates in the porous purification material increases, the phosphorus removal rate decreases, but the time required for microorganisms to acclimatize decreases.
It can be seen that the purification ability is demonstrated at an early stage.
なお、本実施例では使用済みのケイ酸カルシウム永和物
を使用するので、従来のようにこれを廃棄することなく
再利用でき、その使用済みケイ酸カルシウム永和物の廃
棄処理作業が不要となるばかりでなく、資源の有効利用
を図ることができる。In addition, since used calcium silicate permanent material is used in this example, it can be reused without being disposed of as in the conventional method, and there is no need to dispose of the used calcium silicate permanent material. Instead, it is possible to make effective use of resources.
本発明は前記実施例の構成に限定されるものではなく、
例えば浄化処理の規模に応じて多孔質浄化材の形状や大
きさを適宜変更する等、本発明の趣旨から逸脱しない範
囲で任意に変更して具体化することができる。The present invention is not limited to the configuration of the above embodiments,
For example, the shape and size of the porous purifying material may be changed as appropriate depending on the scale of the purification process, and the present invention may be modified and embodied as desired without departing from the spirit of the present invention.
［発明の効果］
以上詳述したように、本発明によれば有機性排水中の微
生物が表面に付着し浄化処理環境に馴化するまでの時間
を短（でき、ひいては早期に浄化処理能力を発揮させる
ことが可能になるという優れた効果を奏する。[Effects of the Invention] As detailed above, according to the present invention, it is possible to shorten the time it takes for microorganisms in organic wastewater to attach to the surface and become accustomed to the purification treatment environment. This has the excellent effect of making it possible to
Claims (1)
シウム水和物２０〜８０重量部に、実質上微生物が付着
していないケイ酸カルシウム水和物を８０〜２０重量部
の割合で混合し、その混合物を粒状にしてなる有機性排
水処理用の多孔質浄化材。1. Mix 20 to 80 parts by weight of calcium silicate hydrate to which microorganisms have adhered through contact with organic wastewater, and 80 to 20 parts by weight of calcium silicate hydrate to which virtually no microorganisms have adhered. A porous purification material for organic wastewater treatment made by granulating the mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63072425A JPH01245898A (en) | 1988-03-25 | 1988-03-25 | Porous purifying material for treatment of organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63072425A JPH01245898A (en) | 1988-03-25 | 1988-03-25 | Porous purifying material for treatment of organic waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01245898A true JPH01245898A (en) | 1989-10-02 |
Family
ID=13488926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63072425A Pending JPH01245898A (en) | 1988-03-25 | 1988-03-25 | Porous purifying material for treatment of organic waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01245898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005342705A (en) * | 2004-05-06 | 2005-12-15 | Hitachi Plant Eng & Constr Co Ltd | Method for producing inclusively-immobilized microbe carrier, inclusively-immobilized microbe carrier, and waste water treatment apparatus |
-
1988
- 1988-03-25 JP JP63072425A patent/JPH01245898A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005342705A (en) * | 2004-05-06 | 2005-12-15 | Hitachi Plant Eng & Constr Co Ltd | Method for producing inclusively-immobilized microbe carrier, inclusively-immobilized microbe carrier, and waste water treatment apparatus |
| JP4632025B2 (en) * | 2004-05-06 | 2011-02-16 | 株式会社日立プラントテクノロジー | Method for producing entrapped immobilization microorganism carrier, entrapping immobilization microorganism carrier, and wastewater treatment apparatus |
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