JPH07308667A - Waste water filter medium, its manufacture and waste water treatment - Google Patents

Waste water filter medium, its manufacture and waste water treatment

Info

Publication number
JPH07308667A
JPH07308667A JP13114494A JP13114494A JPH07308667A JP H07308667 A JPH07308667 A JP H07308667A JP 13114494 A JP13114494 A JP 13114494A JP 13114494 A JP13114494 A JP 13114494A JP H07308667 A JPH07308667 A JP H07308667A
Authority
JP
Japan
Prior art keywords
waste water
aluminum sulfate
filter material
rosin
wastewater
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
Application number
JP13114494A
Other languages
Japanese (ja)
Inventor
Hideki Wakao
英樹 若生
Naomi Yoshioka
尚美 吉岡
Kunio Arimoto
邦夫 有本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ishihara Chemical Co Ltd
Original Assignee
Ishihara Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ishihara Chemical Co Ltd filed Critical Ishihara Chemical Co Ltd
Priority to JP13114494A priority Critical patent/JPH07308667A/en
Publication of JPH07308667A publication Critical patent/JPH07308667A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the waste water treatment efficiency by making aluminum sulfate adsorbed on a filter medium and further making rosin adhere thereto. CONSTITUTION:An inner water tank 2 is installed in an outer water tank 1, and two pieces of waste filter medium 3 are set in the inner water tank 2. Waste water 4 is stored in the outer water tank 1 and the inner water tank 2, and the waste water 4 is circulated by a pump 5 and the waste water filter mediums 3 are passed therein. Water solution of aluminum sulfate is applied to the filter mediums and dried thereon, and then alcohol solution of rosin is applied and dried to form the filter medium 3. In the above-said constitution, the elution of aluminum sulfate is slow to prevent the increase of concentration of aluminum sulfate in the waste water. Also the circulating time is made longer to improve the see-through and reduce suspended materials. Also the COD is lowered and n-hexane extractant is decreased to improve the quality of waste water.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動車などの洗浄に使
用した廃水を処理するための、廃水濾過材及びその製造
方法並びに、当該廃水濾過材を使用した前記廃水の処理
方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater filter material for treating wastewater used for washing automobiles and the like, a method for producing the same, and a method for treating the wastewater using the wastewater filter material. .

【0002】[0002]

【従来の技術】従来ガソリンスタンドや洗車場などにお
いて、洗車機で自動車を洗車することが広く行われてい
る。そしてかかる洗車機から出る廃水には、洗剤や自動
車に付着していた泥などの汚れの他、ワックスや防錆剤
等の油分が少なからず含まれている。
2. Description of the Related Art Conventionally, it has been widely practiced to wash an automobile with a car washer at a gas station or a car wash. The waste water discharged from the car wash machine contains not only a small amount of dirt such as detergent and mud adhering to the automobile but also oil such as wax and rust preventive agent.

【0003】[0003]

【発明が解決しようとする課題】従来これらの廃水はそ
のまま下水などに流していたが、近年環境浄化の観点か
ら、かかる廃水を下水に流す前に処理し、水質を改善す
ることが求められるようになっている。
Conventionally, these wastewaters have been flown directly into the sewage as they are, but in recent years, from the viewpoint of environmental purification, it is required to treat the wastewater before flowing it into the sewage to improve the water quality. It has become.

【0004】上記のような廃水を処理する方法として
は、廃水に硫酸アルミニウムを添加し、懸濁物質を凝集
させることが行われているが、断続的に生じる大量の廃
水に対して所定の割合で硫酸アルミニウムを添加するこ
とは困難であり、また結果的に大量の硫酸アルミニウム
を必要とする。
As a method for treating the wastewater as described above, aluminum sulfate is added to the wastewater to agglomerate the suspended substance, but a predetermined ratio is given to a large amount of wastewater generated intermittently. It is difficult to add aluminum sulphate at room temperature and, consequently, requires a large amount of aluminum sulphate.

【0005】本発明はかかる事情に鑑みなされたもので
あって、フィルター材に対して硫酸アルミニウムを吸着
させておき、そこを繰返し廃水を通過させることにより
徐々に硫酸アルミニウムを溶出せしめ、効率良く廃水を
処理することを目的とするものである。
The present invention has been made in view of the above circumstances, in which aluminum sulfate is adsorbed to a filter material, and the waste water is repeatedly passed through the filter material to gradually elute the aluminum sulfate, thereby efficiently discharging the waste water. Is intended to be processed.

【0006】[0006]

【課題を解決する手段】而して本発明の廃水濾過材は、
フィルター材に硫酸アルミニウムを吸着せしめ、さらに
ロジンを付着せしめてなることを特徴とするものであ
る。
The wastewater filter material of the present invention is
It is characterized in that aluminum sulfate is adsorbed on the filter material, and rosin is further attached.

【0007】またこの廃水濾過材を製造する方法の発明
は、フィルター材に硫酸アルミニウムの水溶液を塗布
し、これを乾燥した後、ロジンのアルコール溶液を塗布
し、これを乾燥することを特徴とするものである。
Further, the invention of the method for producing the waste water filter material is characterized in that an aqueous solution of aluminum sulfate is applied to the filter material, the solution is dried, and then an alcohol solution of rosin is applied, and the solution is dried. It is a thing.

【0008】さらに廃水処理方法の発明は、フィルター
材に硫酸アルミニウムを吸着せしめ、さらにロジンを付
着せしめてなる廃水濾過材に、廃水を繰返し通過させる
ことを特徴とするものである。
Further, the invention of the wastewater treatment method is characterized in that the wastewater is repeatedly passed through a wastewater filter material having aluminum sulfate adsorbed on the filter material and further rosin attached thereto.

【0009】本発明におけるフィルター材としては、繊
維製の織布、編物、不織布又はこれらを組合わせた布帛
などを使用することができる。また砂などの無機質のフ
ィルター材を使用することも可能である。
As the filter material in the present invention, a woven cloth, a knitted cloth, a non-woven cloth made of fibers or a cloth combining these can be used. It is also possible to use an inorganic filter material such as sand.

【0010】一般に繊維製のフィルター材においては、
廃水中の油分を吸着するために親油性の処理を施すこと
が多いが、本発明において使用するフィルター材として
は、かかる親油処理を施さないものが好ましい。
Generally, in a filter material made of fiber,
Although a lipophilic treatment is often applied to adsorb oil components in waste water, the filter material used in the present invention is preferably one that is not subjected to such lipophilic treatment.

【0011】フィルター材に対して硫酸アルミニウムを
吸着せしめるには、フィルター材に硫酸アルミニウムの
水溶液を塗布し、次いでこれを乾燥する。塗布の手段と
しては、硫酸アルミニウムの水溶液をフィルター材にス
プレーすることにより行うことができる。またフィルタ
ー材を硫酸アルミニウム水溶液に浸漬することによっ
て、塗布することもできる。
In order to adsorb aluminum sulfate to the filter material, an aqueous solution of aluminum sulfate is applied to the filter material and then dried. The application can be performed by spraying an aqueous solution of aluminum sulfate on the filter material. It can also be applied by immersing the filter material in an aqueous solution of aluminum sulfate.

【0012】フィルター材に対する硫酸アルミニウムの
吸着量は、1cm2 当り0.3〜5mg程度が適当である。
硫酸アルミニウムの量が少いと廃水を浄化する作用が小
さく、また硫酸アルミニウムの吸着量が多過ぎると、廃
水に溶出する硫酸アルミニウムの量が多くなり過ぎ、廃
水のpHが低くなる。
The amount of aluminum sulfate adsorbed on the filter material is preferably about 0.3 to 5 mg per cm 2 .
If the amount of aluminum sulfate is small, the effect of purifying the wastewater is small, and if the amount of adsorption of aluminum sulfate is too large, the amount of aluminum sulfate eluted in the wastewater becomes too large, and the pH of the wastewater becomes low.

【0013】また硫酸アルミニウムを吸着させたフィル
ター材にロジンを付着せしめるには、メチルアルコー
ル、エチルアルコール又はプロピルアルコールなどの低
級アルコールにロジンを溶解した溶液を、フィルター材
に塗布する。塗布の手段としては、ロジン溶液をフィル
ター材にスプレーし、又はフィルター材をロジン溶液に
浸漬することにより行うことができる。
To attach rosin to a filter material having aluminum sulfate adsorbed thereon, a solution of rosin in a lower alcohol such as methyl alcohol, ethyl alcohol or propyl alcohol is applied to the filter material. The application can be performed by spraying the filter material with a rosin solution or by immersing the filter material in the rosin solution.

【0014】本発明において使用するロジンとしては、
ガムロジン、ウッドロジン、トール油ロジンなどを使用
することができ、またこれらのロジンの主成分であるア
ビエチン酸、パラストリン酸などの純物質を使用するこ
ともできる。
The rosin used in the present invention is
Gum rosin, wood rosin, tall oil rosin and the like can be used, and pure substances such as abietic acid and parastoric acid, which are the main components of these rosins, can also be used.

【0015】さらにこれらのロジン類の誘導体として、
不均斉化ロジン、水素添加ロジン、重合ロジン、前記ロ
ジン類とアルコール類とのエステルなどを使用すること
もできる。
Further, as derivatives of these rosins,
Asymmetrical rosins, hydrogenated rosins, polymerized rosins, esters of the above rosins with alcohols and the like can also be used.

【0016】フィルター材に対するロジンの付着量は、
1cm2 当り0.5〜5mg程度が適当である。ロジンの付
着量が少いと廃水を浄化する作用が小さく、またロジン
の付着量が多過ぎる場合にも、硫酸アルミニウムの溶出
を阻害するために廃水浄化の作用が小さくなる。
The amount of rosin attached to the filter material is
About 0.5 to 5 mg per cm 2 is suitable. If the amount of rosin adhered is small, the effect of purifying the wastewater is small, and if the amount of rosin adhered is too large, the elution of aluminum sulfate is hindered and the effect of cleaning the wastewater is reduced.

【0017】[0017]

【作用】洗車機から生じた廃水を処理装置に収容し、装
置内において廃水を循環させると共に、その循環経路中
に本発明の廃水濾過材を設置し、当該廃水濾過材に廃水
を繰返し通過させる。
The waste water generated from the car wash machine is stored in the treatment equipment, the waste water is circulated in the equipment, the waste water filter of the present invention is installed in the circulation path, and the waste water is repeatedly passed through the waste water filter. .

【0018】これによって廃水中の粗大固形物は廃水濾
過材で濾過されると共に、フィルター材に塗布されてい
る硫酸アルミニウムが徐々に廃水中に溶出し、これが廃
水中の懸濁物質を凝集せしめ、それをさらに廃水濾過材
が濾過する。
As a result, the coarse solid matter in the wastewater is filtered by the wastewater filter material, and the aluminum sulfate applied to the filter material is gradually eluted into the wastewater, which causes the suspended substances in the wastewater to aggregate. It is further filtered by a waste water filter.

【0019】またロジンはフィルター材に付着した硫酸
アルミニウムを覆い、廃水の通過に伴って硫酸アルミニ
ウムの廃水中への溶出を制御し、効果を長時間持続せし
める作用をしているものと考えられる。
It is also considered that rosin has a function of covering aluminum sulfate adhering to the filter material, controlling elution of aluminum sulfate into the waste water as the waste water passes, and maintaining the effect for a long time.

【0020】[0020]

【発明の効果】本発明によれば、廃水濾過材が廃水中の
粗大固形物を濾過すると共に、その廃水濾過材に吸着さ
れた硫酸アルミニウムが徐々に廃水中に溶出し、廃水中
の懸濁物を凝集せしめるので、廃水を浄化することがで
きる。
According to the present invention, the waste water filter material filters coarse solids in the waste water, and the aluminum sulfate adsorbed by the waste water filter material is gradually eluted into the waste water to suspend it in the waste water. The waste water can be purified because the substances are aggregated.

【0021】また廃水濾過材は硫酸アルミニウムを吸着
し、さらにそれをロジンで固定しているので、硫酸アル
ミニウムがゆっくりと溶出するため、廃水中の硫酸アル
ミニウムの濃度が過度に高くなることがなく、且つ低濃
度の硫酸アルミニウムにより懸濁物質を効率良く凝集せ
しめることができる。
Further, since the waste water filter adsorbs aluminum sulfate and further fixes it with rosin, the aluminum sulfate is slowly eluted, so that the concentration of aluminum sulfate in the waste water does not become excessively high. Moreover, the suspended substance can be efficiently aggregated by the low concentration of aluminum sulfate.

【0022】[0022]

【実施例】繊維製不織布よりなるフィルター材を20cm
×22cmに裁断し、これに硫酸アルミニウムの水溶液を
噴霧して乾燥し、さらにその後ロジンのメタノール溶液
を噴霧して乾燥し、廃水濾過材とした。
Example: A filter material made of non-woven fabric of 20 cm
It was cut to a size of 22 cm, sprayed with an aqueous solution of aluminum sulfate and dried, and then sprayed with a methanol solution of rosin to dry it to obtain a waste water filter.

【0023】図1に示すように外水槽1内に内水槽2を
設置し、その内水槽2に前記廃水濾過材3を二枚設置し
た。そしてその外水槽1及び内水槽2内に廃水4を収容
し、ポンプ5で廃水4を循環させて廃水濾過材3を通し
た。
As shown in FIG. 1, an inner water tank 2 was installed in an outer water tank 1, and two waste water filter materials 3 were installed in the inner water tank 2. Then, the waste water 4 was stored in the outer water tank 1 and the inner water tank 2, and the waste water 4 was circulated by the pump 5 and passed through the waste water filter 3.

【0024】前記フィルター材に噴霧する硫酸アルミニ
ウム水溶液の濃度(%)、ロジンメタノール溶液の濃度
(%)、廃水の循環時間(時間)及び試験に供した廃水
の量(リットル)の四つの要因について、それぞれ表1
に示す三水準に設定し、実験計画法に基いて表2に示す
ように割付けた。
Regarding the four factors of the concentration (%) of the aluminum sulfate aqueous solution sprayed on the filter material, the concentration (%) of the rosin methanol solution, the circulation time (hours) of the waste water, and the amount (liter) of the waste water used for the test. , Respectively Table 1
The three levels shown in Table 2 were set and assigned as shown in Table 2 based on the experimental design method.

【0025】[0025]

【表1】 [Table 1]

【0026】[0026]

【表2】 以上の操作の後、ポンプから廃水を採取し、この水につ
いて、透視度(cm)、懸濁物質(mg/l)、pH(25
℃)、COD(mg/l)及びn−ヘキサン抽出物質(mg/
l)を測定した。その測定の結果を表3に示す。
[Table 2] After the above operation, waste water was collected from the pump, and the water had a transparency (cm), suspended matter (mg / l), pH (25
C), COD (mg / l) and n-hexane extract (mg / l)
l) was measured. The results of the measurement are shown in Table 3.

【0027】なお表3中の硫酸アルミニウム及びロジン
の値は、前述の廃水濾過材3の調製に当って、フィルタ
ー材に硫酸アルミニウム及びロジンをそれぞれ塗布した
ことによるフィルター材の重量増から算出した、それぞ
れのフィルター材への付着量(mg/cm2 )である。
The values of aluminum sulfate and rosin in Table 3 were calculated from the weight increase of the filter material by applying aluminum sulfate and rosin to the filter material in the preparation of the above-mentioned wastewater filter material 3, The amount of adhesion (mg / cm 2 ) to each filter material.

【0028】[0028]

【表3】 これらのデーターから、フィルター材に硫酸アルミニウ
ムを付着させることにより、また循環時間を長くするこ
とにより、透視度が向上し、懸濁物質が減少し、COD
が低くなり、またn−ヘキサン抽出物質が減少してお
り、廃水の水質が向上している。
[Table 3] From these data, by adhering aluminum sulfate to the filter material and by prolonging the circulation time, the transparency is improved, suspended substances are reduced, and COD is reduced.
Is low and the amount of n-hexane extract is decreasing, and the quality of wastewater is improved.

【0029】またpHは低下して酸性度が高くなってい
るが、これは硫酸アルミニウムが酸性物質であることか
ら、止むを得ないことであり、むしろ硫酸アルミニウム
が適切に溶出し、廃水を浄化していることを示してい
る。
Further, the pH is lowered and the acidity is increased. This is unavoidable because aluminum sulfate is an acidic substance, and rather aluminum sulfate is appropriately eluted and wastewater is purified. It shows that it is doing.

【0030】一方ロジンも、これがフィルター材に付着
することにより、透視度及び懸濁物質が改善されてお
り、またn−ヘキサン抽出物質も若干減少傾向にある。
しかしながらロジン自体は水に不溶性であり、またロジ
ン自体に浄水作用があるわけではないので、CODには
殆ど影響していない。
On the other hand, rosin also has improved transparency and suspended solids due to the fact that it adheres to the filter material, and the amount of n-hexane extract also tends to decrease slightly.
However, rosin itself is insoluble in water, and since rosin itself does not have a water purifying effect, it hardly affects COD.

【図面の簡単な説明】[Brief description of drawings]

【図1】 実験に供した廃水処理装置の概念図FIG. 1 Schematic diagram of the wastewater treatment equipment used in the experiment

【符号の説明】[Explanation of symbols]

3 廃水濾過材 4 廃水 3 Waste water filter 4 Waste water

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 フィルター材に硫酸アルミニウムを吸着
せしめ、さらにロジンを付着せしめてなることを特徴と
する、廃水濾過材
1. A wastewater filter material, characterized in that aluminum sulfate is adsorbed on the filter material, and further rosin is adhered on the filter material.
【請求項2】 フィルター材に硫酸アルミニウムの水溶
液を塗布し、これを乾燥した後、ロジンのアルコール溶
液を塗布し、これを乾燥することを特徴とする、廃水濾
過材の製造方法
2. A method for producing a waste water filter material, which comprises applying an aqueous solution of aluminum sulfate to a filter material, drying the solution, then applying an alcohol solution of rosin, and drying the solution.
【請求項3】 フィルター材に硫酸アルミニウムを吸着
せしめ、さらにロジンを付着せしめてなる廃水濾過材
に、廃水を繰返し通過させることを特徴とする、廃水処
理方法
3. A method for treating wastewater, characterized in that the wastewater is repeatedly passed through a wastewater filter material having aluminum sulfate adsorbed on the filter material and further rosin attached thereto.
JP13114494A 1994-05-19 1994-05-19 Waste water filter medium, its manufacture and waste water treatment Pending JPH07308667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13114494A JPH07308667A (en) 1994-05-19 1994-05-19 Waste water filter medium, its manufacture and waste water treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13114494A JPH07308667A (en) 1994-05-19 1994-05-19 Waste water filter medium, its manufacture and waste water treatment

Publications (1)

Publication Number Publication Date
JPH07308667A true JPH07308667A (en) 1995-11-28

Family

ID=15051035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13114494A Pending JPH07308667A (en) 1994-05-19 1994-05-19 Waste water filter medium, its manufacture and waste water treatment

Country Status (1)

Country Link
JP (1) JPH07308667A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368462B1 (en) * 2011-12-30 2014-03-03 웅진케미칼 주식회사 Separation Membrane for Water Treatment and Manufacturing Method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368462B1 (en) * 2011-12-30 2014-03-03 웅진케미칼 주식회사 Separation Membrane for Water Treatment and Manufacturing Method thereof

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