JPH0128879Y2 - - Google Patents
Info
- Publication number
- JPH0128879Y2 JPH0128879Y2 JP1984089555U JP8955584U JPH0128879Y2 JP H0128879 Y2 JPH0128879 Y2 JP H0128879Y2 JP 1984089555 U JP1984089555 U JP 1984089555U JP 8955584 U JP8955584 U JP 8955584U JP H0128879 Y2 JPH0128879 Y2 JP H0128879Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- oil
- car wash
- neutralization
- wash 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.)
- Expired
Links
- 239000002351 wastewater Substances 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 14
- 238000006386 neutralization reaction Methods 0.000 claims description 14
- 230000020477 pH reduction Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 7
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 5
- 229910001424 calcium ion Inorganic materials 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 4
- 238000010979 pH adjustment Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001179 sorption measurement Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 241000237502 Ostreidae Species 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 235000020636 oyster Nutrition 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005406 washing Methods 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
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は自動車の洗車排水を再使用するために
用いられる洗車排水の再生装置に関するものであ
る。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a car wash wastewater regeneration device used for reusing car wash wastewater from automobiles.
（従来の技術）
洗車場から排出される洗車排水は自動車１台あ
たり70〜120に及ぶが、この洗車排水中には多
量の油分と土砂及び微量の有機物質等が混入して
いるために再使用が困難であり、また、凝集剤に
より油分を除去したうえ洗車水として再使用する
試みもなされたが、このようにして再生された水
により洗車を行うと凝集剤の影響により自動車の
窓ガラスに曇りが生ずる問題点があつた。(Conventional technology) Car wash wastewater discharged from car washes ranges from 70 to 120 times per car, but because this car wash wastewater contains a large amount of oil, sand, and trace amounts of organic substances, it is difficult to reuse it. It is difficult to use, and attempts have been made to remove the oil with a coagulant and reuse it as car wash water, but if you wash your car with the recycled water in this way, the coagulant will cause damage to the car window glass. There was a problem that clouding occurred.
（考案が解決しようとする問題点）
従つて、洗車場から排出される多量の洗車排水
を洗車水として再利用できる純度にまで能率良く
再生することができる洗車排水の再生装置が求め
られていた。(Problem to be solved by the invention) Therefore, there has been a need for a car wash wastewater regeneration device that can efficiently regenerate the large amount of car wash wastewater discharged from car washes to a purity that can be reused as car wash water. .
（問題点を解決するための手段）
本考案はこのような従来の問題点を解決するた
めに完成されたものであり、回収された洗車排水
へPH調整用の酸を添加する酸供給パイプ及び液面
に浮上した油分をオーバーフローさせる油回収溝
を備えた酸性化槽と、内面に油吸着材が貼着され
た屈曲板から成る下向きの屈曲流路の側方に同様
の上向きの屈曲流路を連設した吸着沈澱槽と、カ
ルシウムイオンを溶出させる中和濾材が充填され
た中和槽と、生物処理槽とを順次接続したことを
特徴とするものである。(Means for Solving the Problems) The present invention was completed to solve these conventional problems, and includes an acid supply pipe and an acid supply pipe for adding acid for pH adjustment to collected car wash wastewater. An acidification tank equipped with an oil collection groove that allows oil floating on the liquid surface to overflow, and a downward curved channel consisting of a curved plate with an oil adsorbent attached to its inner surface, and a similar upward curved channel on the side. This system is characterized by sequentially connecting an adsorption sedimentation tank in which a calcium ion is disposed in series, a neutralization tank filled with a neutralizing filter medium for eluting calcium ions, and a biological treatment tank.
（実施例）
次に本考案を図示の実施例について詳細に説明
すれば、１は回収された洗車排水のPH調整用の酸
性化槽、２は吸着沈澱槽、３は中和槽、４は生物
処理槽、５は再生水槽である。酸性化槽１には回
収された洗車排水へ酸タンク６から酸を添加して
PHを４前後に調整する酸供給パイプ７と、酸添加
により分離浮上した油分をオーバーフローさせる
ために液面付近に設けられた断面半円形の油回収
溝８のほか、排水ピツト９に流入した洗車排水を
汲上げるポンプ１０と、フロア１１から供給され
る圧縮空気を槽底部から噴出させる送気用ノズル
１２とが設けられている。また、酸性化槽１の内
部は油回収溝８の下面から槽深の約２／３まで垂
下する隔壁１３によつて２分されており、洗車排
水は隔壁１３の左側を下降して含有する土砂を円
錐形の槽底１４に沈澱させるようにされている。
１５は酸性化槽１の後方に設けられた溢流槽であ
り、酸性化槽１の側壁の下方部と連通しており、
その内部には必要に応じて油吸着板１６が設けら
れている。吸着沈澱槽２はその内部に多数の屈曲
板１７を一定間隔で並設したもので、これらの屈
曲板１７間に形成される屈曲流路は槽上部の隔壁
１８によりその左側の下向きの屈曲流路１９と隔
壁１８の右側の屈曲流路２０とに区分されてい
る。各屈曲板１７の洗車排水がぶつかる側の内表
面には平板状の油吸着材２１が貼着されており、
洗車排水が下向きの屈曲流路１９を下降したのち
槽下部で反転して上向きの屈曲流路２０を上昇す
る間に油分が完全に吸着されるようにされてい
る。なお、これらの屈曲板１７はカセツト式に着
脱できるものとしておくことが好ましい。中和槽
３は下部の有孔支持板２２上に牡蛎殻のようなカ
ルシウムイオンを溶出させる中和濾材２３を積上
げるとともにその内部を貫通するパイプ２４を設
け、更に有孔支持板２２の下方部に送気用ノズル
２５を設けたものである。生物処理槽４も中和槽
３と同様に有孔支持板２６上に牡蛎殻２７を積上
げるとともに下部に送気用ノズル２８を設けたも
のであり、牡蛎殻２７に付着している好気性微生
物群により洗車排水中の有機物質を分解させるも
のである。なお、２９は浄化された再生水を再生
水槽５へ流入させるポンプ、３０，３１は酸性化
槽１及び吸着沈澱槽２の槽底に沈澱した土砂を排
出するブローバルブである。(Example) Next, the present invention will be explained in detail with reference to the illustrated embodiments. 1 is an acidification tank for adjusting the pH of collected car wash waste water, 2 is an adsorption sedimentation tank, 3 is a neutralization tank, and 4 is a The biological treatment tank 5 is a regeneration water tank. In the acidification tank 1, acid is added from the acid tank 6 to the recovered car wash wastewater.
In addition to the acid supply pipe 7 that adjusts the pH to around 4, and the oil collection groove 8 with a semicircular cross section provided near the liquid surface to overflow the oil separated and floated by the addition of acid, there is also an oil collection groove 8 with a semicircular cross section provided near the liquid level, as well as an oil collection groove 8 that flows into the drainage pit 9. A pump 10 that pumps up waste water and an air supply nozzle 12 that blows out compressed air supplied from the floor 11 from the bottom of the tank are provided. Furthermore, the inside of the acidification tank 1 is divided into two parts by a partition wall 13 that hangs down from the bottom surface of the oil recovery groove 8 to about 2/3 of the tank depth, and the car wash waste water is contained by descending on the left side of the partition wall 13. The earth and sand are allowed to settle on a conical tank bottom 14.
15 is an overflow tank provided at the rear of the acidification tank 1, which communicates with the lower part of the side wall of the acidification tank 1;
An oil adsorption plate 16 is provided inside thereof as required. The adsorption-sedimentation tank 2 has a large number of bent plates 17 arranged in parallel at regular intervals, and the bent flow path formed between these bent plates 17 is connected to a downward bent flow on the left side by a partition wall 18 at the top of the tank. It is divided into a passage 19 and a bent passage 20 on the right side of the partition wall 18. A flat oil absorbent material 21 is attached to the inner surface of each bent plate 17 on the side that is hit by the car wash water.
After the car wash wastewater descends through the downward curved flow path 19, it is reversed at the bottom of the tank and goes up through the upward curved flow path 20, so that the oil content is completely adsorbed. Incidentally, it is preferable that these bending plates 17 be detachable in a cassette type. In the neutralization tank 3, neutralization filter media 23 such as oyster shells that elute calcium ions are piled up on a perforated support plate 22 at the lower part, and a pipe 24 passing through the media is installed. An air supply nozzle 25 is provided in the section. Similar to the neutralization tank 3, the biological treatment tank 4 also has oyster shells 27 piled up on a perforated support plate 26, and is equipped with an air supply nozzle 28 at the bottom to remove aerobic gas attached to the oyster shells 27. This method uses a group of microorganisms to decompose organic substances in car wash wastewater. Note that 29 is a pump for flowing purified recycled water into the regeneration water tank 5, and 30 and 31 are blow valves for discharging sediment settled on the bottoms of the acidification tank 1 and adsorption/sedimentation tank 2.
（作用）
このように構成されたものは、排水ピツト９に
流入した洗車排水をポンプ１０により酸性化槽１
へ流入させるとともに酸供給パイプ７により酸タ
ンク６から硫酸等の酸を添加してPHを４前後に調
整し、同時に送気用ノズル１２により圧縮空気を
噴出させれば、洗車排水中の油分は酸により容易
に分離して気泡とともに液面まで浮上して油回収
溝８へオーバーフローする一方、洗車排水中の土
砂は槽底１４に沈澱する。このようにして油分と
土砂の大部分を除かれた洗車排水は溢流槽１５の
内部の油吸着板１６により油分を除去されたうえ
吸着沈澱槽２の下向きの屈曲流路１９及びその側
方の上向きの屈曲流路２０を0.005〜0.01ｍ／秒
程度の流速で通過する間に更に土砂を沈澱させつ
つ屈曲板１７の内面に貼着された油吸着材２１に
よつて残りの油分を完全に吸着除去され、また、
屈曲流路１９の下端において残りの土砂を完全に
沈澱させたうえで中和槽３へ流入する。中和槽３
の内部の中和濾材２３の間隔を流下する洗車排水
は下方の送気用ノズル２５から上昇する気泡によ
り撹拌されつつ中和濾材２３から溶出するカルシ
ウムイオンにより中和されたのちパイプ２４を経
て生物処理槽５に流入し、その内部の牡蛎殻２７
に付着した好気性微生物群により有機物質を水と
炭酸ガスとに分離させたうえ再生水槽５に流入す
る。このようにして再生された水は自動車の洗車
に使用することができ、窓ガラスに曇りを生ずる
こともない。(Function) In this structure, the car wash wastewater flowing into the drain pit 9 is transferred to the acidification tank 1 by the pump 10.
At the same time, by adding acid such as sulfuric acid from the acid tank 6 through the acid supply pipe 7 to adjust the pH to around 4, and at the same time blowing out compressed air from the air supply nozzle 12, the oil content in the car wash waste water can be reduced. It is easily separated by the acid and floats to the liquid surface together with bubbles and overflows into the oil recovery groove 8, while the earth and sand in the car wash wastewater settles on the tank bottom 14. The car wash waste water from which most of the oil and dirt have been removed in this way is then subjected to oil removal by the oil adsorption plate 16 inside the overflow tank 15, and then to the downward curved channel 19 of the adsorption sedimentation tank 2 and its side. While passing through the upward curved channel 20 at a flow rate of about 0.005 to 0.01 m/sec, the remaining oil is completely removed by the oil adsorbent 21 attached to the inner surface of the curved plate 17 while further sedimenting the soil. It is adsorbed and removed by
The remaining earth and sand is completely settled at the lower end of the bent channel 19 and then flows into the neutralization tank 3. Neutralization tank 3
The car wash wastewater flowing down the space between the neutralization filter media 23 inside is stirred by air bubbles rising from the air supply nozzle 25 below, and is neutralized by calcium ions eluted from the neutralization filter media 23. Flowing into the treatment tank 5, the oyster shells 27 inside it
The organic substances are separated into water and carbon dioxide gas by the aerobic microorganisms attached to the water, and the organic substances flow into the regeneration water tank 5. The water thus regenerated can be used for washing automobiles and will not cause fogging on the windows.
（考案の効果）
本考案は以上の説明からも明らかなように、洗
車排水を酸性化槽により酸性化して油分と水との
分離を促進させたうえ液面に浮上した油分は油回
収溝により除去するとともに液中の油分は油吸着
材により吸着させて除去し、また、洗車排水中に
多量に含有される土砂を沈澱させたうえ中和槽及
び生物処理槽により中和と有機物質の分解とを行
わせるものであり、これにより従来の再使用され
ていなかつた洗車排水を洗車水として再利用する
ことができる程度にまで再生することを可能とし
てものである。しかも、本考案は凝集剤により油
分を除去する場合に比較して同程度のスペースで
３倍以上の処理能力を生じさせることができる利
点をも有するものであるから、従来の問題点を解
決した洗車排水の再生装置としてその実用的価値
は極めて大きいものである。(Effects of the invention) As is clear from the above explanation, this invention acidifies car wash waste water in an acidification tank to promote separation of oil and water, and the oil that floats to the liquid surface is collected by an oil collection groove. At the same time, the oil in the liquid is removed by adsorption with an oil adsorbent, and the sediment contained in large amounts in car wash wastewater is precipitated, and the neutralization tank and biological treatment tank are used to neutralize and decompose organic substances. This makes it possible to regenerate car wash wastewater, which has not been reused in the past, to the extent that it can be reused as car wash water. Moreover, the present invention has the advantage of being able to produce more than three times the processing capacity in the same amount of space compared to the case where oil is removed using a flocculant, so it solves the problems of the conventional method. Its practical value as a car wash wastewater regeneration device is extremely large.
第１図は本考案の実施例を示す断面図、第２図
はその平面図である。
１：酸性化槽、２：吸着沈澱槽、３：中和槽、
４：生物処理槽、７：酸供給パイプ、８：油回収
溝、１７：屈曲板、１９：屈曲流路、２０：屈曲
流路、２１：油吸着剤、２３：中和濾材。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. 1: Acidification tank, 2: Adsorption sedimentation tank, 3: Neutralization tank,
4: biological treatment tank, 7: acid supply pipe, 8: oil recovery groove, 17: bending plate, 19: bending channel, 20: bending channel, 21: oil adsorbent, 23: neutralization filter medium.
Claims (1)
酸供給パイプ７及び液面に浮上した油分をオーバ
ーフローさせる油回収溝８を備えた酸性化槽１
と、内面に油吸着材２１が貼着された屈曲板１７
から成る下向きの屈曲流路１９の側方に同様の上
向きの屈曲流路２０を連設した吸着沈澱槽２と、
カルシウムイオンを溶出させる中和濾材２３が充
填された中和槽３と、生物処理槽４とを順次接続
したことを特徴とする洗車排水の再生装置。 An acidification tank 1 equipped with an acid supply pipe 7 for adding acid for pH adjustment to collected car wash wastewater and an oil recovery groove 8 for overflowing oil that has surfaced on the liquid surface.
and a bent plate 17 with an oil adsorbent 21 attached to its inner surface.
an adsorption-sedimentation tank 2 in which a similar upwardly bent channel 20 is connected to the side of a downwardly bent channel 19 consisting of;
A car wash wastewater regeneration device characterized in that a neutralization tank 3 filled with a neutralization filter medium 23 for eluting calcium ions and a biological treatment tank 4 are successively connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984089555U JPS614800U (en) | 1984-06-15 | 1984-06-15 | Car wash wastewater regeneration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984089555U JPS614800U (en) | 1984-06-15 | 1984-06-15 | Car wash wastewater regeneration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS614800U JPS614800U (en) | 1986-01-13 |
| JPH0128879Y2 true JPH0128879Y2 (en) | 1989-09-01 |
Family
ID=30643739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984089555U Granted JPS614800U (en) | 1984-06-15 | 1984-06-15 | Car wash wastewater regeneration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS614800U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218283A (en) * | 1999-01-28 | 2000-08-08 | Nec Environment Eng Ltd | Treatment of acidic organic waste water and treating device |
| JP2002096078A (en) * | 2000-09-25 | 2002-04-02 | Suirei:Kk | Purifying unit and purifying system for raw water such as polluted water, waste water or the like equipped with catalyst device |
| JP2005074295A (en) * | 2003-08-29 | 2005-03-24 | Daicel Chem Ind Ltd | Car washing wastewater treatment system |
| JP2012223747A (en) * | 2011-04-19 | 2012-11-15 | Kikuchi Eco Earth:Kk | Water treatment system and water treating method |
-
1984
- 1984-06-15 JP JP1984089555U patent/JPS614800U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614800U (en) | 1986-01-13 |
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