JP4530482B2 - PH neutralization treatment equipment for alkaline or acidic waste liquid - Google Patents

PH neutralization treatment equipment for alkaline or acidic waste liquid Download PDF

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Publication number
JP4530482B2
JP4530482B2 JP2000161602A JP2000161602A JP4530482B2 JP 4530482 B2 JP4530482 B2 JP 4530482B2 JP 2000161602 A JP2000161602 A JP 2000161602A JP 2000161602 A JP2000161602 A JP 2000161602A JP 4530482 B2 JP4530482 B2 JP 4530482B2
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Japan
Prior art keywords
tank
waste liquid
alkaline
acidic waste
reaction tank
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 - Lifetime
Application number
JP2000161602A
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Japanese (ja)
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JP2001340876A (en
Inventor
達也 千賀
優一 若間
武幸 西村
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.)
Tsurumi Manufacturing Co Ltd
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Tsurumi Manufacturing 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
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Priority to JP2000161602A priority Critical patent/JP4530482B2/en
Publication of JP2001340876A publication Critical patent/JP2001340876A/en
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Description

【０００１】
【発明の技術分野】
本発明は、ボイラー洗浄やコンクリートミキサ車の洗車作業によって生じるアルカリ性または酸性廃液、または、メッキ工場等から排出される酸性廃液のＰＨ中和処理装置に関するものである。
【０００２】
【従来技術とその問題点】
従来この種の処理装置では図２に示すよう、アルカリ性または酸性廃液を原水槽１０８内設置の水中ポンプ１０１によるポンプアップ方式で反応槽１０２内へ揚送させるため、原水槽１０８内が低水位状態となれば水中ポンプ１０１による廃液の揚送が不能となり、従って低水位状態での渇水運動とならないよう原水槽１０８の貯溜容積を確保すると共に液面検出器１００による水中ポンプ１０１の発停制御が必要となる。また、反応槽１０２内への流入と槽外への放出は常に連続状態でのみ行わせられ、反応槽１０２内の容量が少なければ十分な中和処理が施されないままで槽外へ放出されることになるため、反応槽１０２の大型化により設置コストが増大する。
【０００３】
【発明の目的】
本発明の目的は、原液槽の大きさや形状に制約されることなく低水位までポンプ吸引できると共に、反応槽の容量が少なくても有効な中和処理が施され、コンパクトな構成でローコストに設置できる、アルカリ性または酸性廃液のＰＨ中和処理装置を提供することにある。
【０００４】
【発明の構成】
本発明に係るアルカリ性または酸性廃液のＰＨ中和処理装置においては、反応槽内に収容された水中ポンプの吐出口から吐水管を導延し、アルカリ性または酸性廃液の原液槽から上導された原水吸引管の終端開口部を、上記吐水管の反応槽内に収容された導延先端部に形成されるエジェクタ内のノズル外周の負圧部へ導通させてエジェクタのスロート部から反応槽内へ噴射するように構成し、反応槽の上方より該槽内へＰＨ調整剤を供給するための供給機構を付設し、反応槽内の上方部から槽外へ導出される流出口を開設した。
【０００５】
【実施例】
以下実施例の図１により説明をする。
【０００６】
１は反応槽２内に収容された水中ポンプ、３は水中ポンプ１の吐出口から導延された吐水管であり、その反応槽２内に収容された先端開口部に形成されるエジェクタ９内のノズル外周（図示せず）には負圧部が繞設されている。７はアルカリ性または酸性廃液の原水槽８から上導された原水吸引管であり、その終端開口部を前記ノズル外周の負圧部へ導通させてエジェクタ９のスロート部２１から反応槽２内へ噴射するように構成する。４は反応槽２の上方より該槽２へＰＨ調整剤を供給するための供給機構であり、供給されるＰＨ調整剤の性状は固体、液体、気体の何れであってもよい。１１は反応槽２内の上方部から槽外へ導出される流出口である。
【０００７】
【作用】
水中ポンプ１の駆動により反応槽２内のアルカリ性または酸性廃液はポンプ吸込口から吸込まれるが、供給機構４から落下して反応槽２内へ供給されたＰＨ調整剤もポンプ吸込口から吸込まれ、吐水管３を経由してエジェクタ９内のノズルを通過する際に負圧部に負圧が発生し、原水吸込管７により吸引される原液槽８内のアルカリ性または酸性廃液を伴ってエジェクタ９のスロート部２１から反応槽２内へ噴射され、撹拌作用によって中和反応される。中和反応された処理水は流出口１１から槽外へ送出される。
【０００８】
【発明の効果】
本発明に係るアルカリ性または酸性廃液のＰＨ中和処理装置によれば、従来のポンプアップ方式と異なり、反応槽内に収容された水中ポンプでエジェクタを作動させて原水槽のアルカリ性または酸性廃液を上記エジェクタの負圧部へ吸引しスロート部から噴射するという方式であるため、原水槽からの廃液流入が途絶えても中和処理が継続でき、反応槽の容量が少なくても十分な中和処理が可能であり、また、原水槽の大きさや形状に制約されることなく超低水位まで吸引できるため、現場の既設槽やドラム缶等の仮設槽でも原水槽として利用でき、かつ、中和処理に必要な主要機能を反応槽内へ集約ユニット化されているため、従来に比し可搬性にも優れている。そしてコンパクトな構成によりローコストに設置できるという利点がある。
【図面の簡単な説明】
【図１】 本発明に係るアルカリ性または酸性廃液のＰＨ中和処理装置の構成図である。
【図２】 従来のアルカリ性または酸性廃液のＰＨ中和処理装置の構成図である。
【符号の説明】
１ 水中ポンプ
２ 反応槽
３ 吐水管
４ ＰＨ調整剤の供給機構
７ 原水吸引管
８ 原水槽
９ エジェクタ
１１ 流出口
２１ スロート部 [0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a PH neutralization treatment apparatus for alkaline or acidic waste liquid generated by boiler cleaning or concrete car washing, or acidic waste liquid discharged from a plating factory or the like.
[0002]
[Prior art and its problems]
Conventionally, in this type of treatment apparatus, as shown in FIG. 2, alkaline or acidic waste liquid is pumped up into the reaction tank 102 by a pump-up method using a submersible pump 101 installed in the raw water tank 108, so that the raw water tank 108 is in a low water level Then, the pumping of the waste liquid by the submersible pump 101 becomes impossible, so that the storage volume of the raw water tank 108 is secured so as not to cause the drought movement at the low water level, and the start / stop control of the submersible pump 101 by the liquid level detector 100 is performed. Necessary. Moreover, inflow into the reaction tank 102 and discharge to the outside of the tank are always performed only in a continuous state, and if the capacity in the reaction tank 102 is small, it is discharged outside the tank without being sufficiently neutralized. Therefore, the installation cost increases due to the increase in the size of the reaction vessel 102.
[0003]
OBJECT OF THE INVENTION
The object of the present invention is that the pump can be sucked to a low water level without being restricted by the size and shape of the stock solution tank, and effective neutralization is performed even if the reaction tank capacity is small, and it is installed at a low cost with a compact configuration. An object of the present invention is to provide an alkaline or acidic waste liquid PH neutralization treatment apparatus.
[0004]
[Structure of the invention]
In the alkaline or acidic waste liquid PH neutralization treatment apparatus according to the present invention, the raw water introduced from the discharge port of the submersible pump accommodated in the reaction tank and led from the alkaline or acidic waste liquid stock tank injecting the terminating opening of the suction pipe, made conductive to the negative pressure portion of the nozzle outer periphery of the ejector is formed Ru on Shirubenobe tip housed in the reaction vessel of the water discharge pipe from the throat portion of the ejector into the reaction vessel And a supply mechanism for supplying a pH adjusting agent into the tank from above the reaction tank, and an outflow port led out from the upper part of the reaction tank to the outside of the tank.
[0005]
【Example】
The embodiment will be described below with reference to FIG.
[0006]
1 stowed submersible pump into the reaction vessel 2, 3 is a water discharge pipe which is cast guide from the discharge port of the water pump 1, the reactor contained a distal opening in the formed Ru ejector 9 in the 2 A negative pressure portion is provided on the outer periphery (not shown) of the nozzle. A raw water suction pipe 7 is introduced from the alkaline or acidic waste liquid raw water tank 8, and the terminal opening is connected to the negative pressure part on the outer periphery of the nozzle to be injected into the reaction tank 2 from the throat part 21 of the ejector 9. To be configured. Reference numeral 4 denotes a supply mechanism for supplying a pH adjusting agent to the tank 2 from above the reaction tank 2, and the supplied PH adjusting agent may be solid, liquid, or gas. 11 is an outflow port led out from the upper part in the reaction tank 2 to the outside of the tank.
[0007]
[Action]
The alkaline or acidic waste liquid in the reaction tank 2 is sucked from the pump suction port by driving the submersible pump 1, but the PH adjusting agent that has fallen from the supply mechanism 4 and supplied into the reaction tank 2 is also sucked from the pump suction port. When passing through the nozzle in the ejector 9 via the water discharge pipe 3, a negative pressure is generated in the negative pressure portion, and the ejector 9 is accompanied by an alkaline or acidic waste liquid in the raw liquid tank 8 sucked by the raw water suction pipe 7. Are injected into the reaction tank 2 from the throat portion 21 and neutralized by a stirring action. The treated water subjected to the neutralization reaction is sent out of the tank from the outlet 11.
[0008]
【The invention's effect】
According to the PH or neutralization treatment apparatus for alkaline or acidic waste liquid according to the present invention, unlike the conventional pump-up system, the ejector is operated by the submersible pump accommodated in the reaction tank so that the alkaline or acidic waste liquid in the raw water tank is Since it is a method of sucking into the negative pressure part of the ejector and injecting it from the throat part, neutralization can be continued even if the waste liquid inflow from the raw water tank stops, and sufficient neutralization can be performed even if the capacity of the reaction tank is small. It can be used and can be used as a raw water tank even in temporary tanks such as existing tanks and drum cans because it can suck up to ultra-low water level without being restricted by the size and shape of the raw water tank. The main functions are integrated into the reaction tank, so it is more portable than before. And it has the advantage that it can be installed at low cost due to its compact configuration.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a PH neutralization treatment apparatus for alkaline or acidic waste liquid according to the present invention.
FIG. 2 is a configuration diagram of a conventional alkaline or acidic waste liquid PH neutralization treatment apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Submersible pump 2 Reaction tank 3 Water discharge pipe 4 PH adjustment agent supply mechanism 7 Raw water suction pipe 8 Raw water tank 9 Ejector 11 Outlet
21 Throat

Claims (1)

反応槽内に収容された水中ポンプの吐出口から吐水管を導延し、アルカリ性または酸性廃液の原水槽から上導された原水吸引管の終端開口部を、上記吐水管の反応槽内に収容された導延先端部に形成されるエジェクタ内のノズル外周の負圧部へ導通させてエジェクタのスロート部から反応槽内へ噴射するように構成し、反応槽の上方より該槽内へＰＨ調整剤を供給するための供給機構を付設し、反応槽内の上方部から槽外へ導出される流出口を開設したことを特徴とする、アルカリ性または酸性廃液のＰＨ中和処理装置。The water discharge pipe is extended from the discharge port of the submersible pump accommodated in the reaction tank, and the terminal opening of the raw water suction pipe led from the alkaline or acidic waste liquid raw water tank is accommodated in the reaction tank of the water discharge pipe. been Shirubenobe made conductive to the negative pressure portion of the nozzle outer periphery of the ejector tip Ru formed in adapted to inject from the throat portion of the ejector into the reaction vessel, PH adjusted from above the reaction vessel into the cistern A PH neutralization treatment apparatus for alkaline or acidic waste liquid, characterized in that a supply mechanism for supplying the agent is attached and an outlet is formed that is led out from the upper part of the reaction tank to the outside of the tank.
JP2000161602A 2000-05-31 2000-05-31 PH neutralization treatment equipment for alkaline or acidic waste liquid Expired - Lifetime JP4530482B2 (en)

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Application Number Priority Date Filing Date Title
JP2000161602A JP4530482B2 (en) 2000-05-31 2000-05-31 PH neutralization treatment equipment for alkaline or acidic waste liquid

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JP4530482B2 true JP4530482B2 (en) 2010-08-25

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JP2018183727A (en) * 2017-04-25 2018-11-22 サンエー工業株式会社 Mobile self-priming neutralization treatment apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843285A (en) * 1981-09-10 1983-03-12 Tokyo Electric Power Co Inc:The Automatic neutralizing method for alkaline waste liquid
JPS62262790A (en) * 1986-05-07 1987-11-14 Fujimori Sangyo Kk Method and apparatus for producing mineralized water
JPS62277127A (en) * 1985-05-29 1987-12-02 メタルナ・ストロイエクラドニア・コンストラクシエ・イン・モンタザ・エヌ．ソル．オ−．トツド・トヴアルナ・インヴエステイシスケ・オプレム・エヌ．ソル．オ−． Removal of sulfur oxide from gaseous and/or liquid waste

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843285A (en) * 1981-09-10 1983-03-12 Tokyo Electric Power Co Inc:The Automatic neutralizing method for alkaline waste liquid
JPS62277127A (en) * 1985-05-29 1987-12-02 メタルナ・ストロイエクラドニア・コンストラクシエ・イン・モンタザ・エヌ．ソル．オ−．トツド・トヴアルナ・インヴエステイシスケ・オプレム・エヌ．ソル．オ−． Removal of sulfur oxide from gaseous and/or liquid waste
JPS62262790A (en) * 1986-05-07 1987-11-14 Fujimori Sangyo Kk Method and apparatus for producing mineralized water

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