JPH07204663A - Ph value adjustment device - Google Patents
Ph value adjustment deviceInfo
- Publication number
- JPH07204663A JPH07204663A JP18772693A JP18772693A JPH07204663A JP H07204663 A JPH07204663 A JP H07204663A JP 18772693 A JP18772693 A JP 18772693A JP 18772693 A JP18772693 A JP 18772693A JP H07204663 A JPH07204663 A JP H07204663A
- Authority
- JP
- Japan
- Prior art keywords
- biological treatment
- gas
- adjusting
- value adjustment
- 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.)
- Withdrawn
Links
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)
- Control Of Non-Electrical Variables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、搾乳ライン洗浄水、飲
料水製造ライン、食品洗瓶ライン等から排出されるアル
カリ性排水のＰＨ（水素イオン濃度）を調整するための
ＰＨ調整装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pH adjusting device for adjusting the PH (hydrogen ion concentration) of alkaline waste water discharged from milking line washing water, drinking water production line, food washing bottle line and the like. is there.
【０００２】[0002]
【従来の技術】アルカリ性排水のＰＨ調整の一般的な方
法には、ＰＨ調整槽、ＰＨセンサー、ＰＨ調整器、薬品
タンク、薬注ポンプを設け、硫酸あるいは塩酸等の酸性
薬品を所定ＰＨになるまで添加する方法がある。また、
炭酸ガスボンベを設置し、炭酸ガスをＰＨ調整槽に導
き、炭酸ガスでＰＨを調整する方法もある。2. Description of the Related Art As a general method for adjusting the pH of alkaline waste water, a pH adjusting tank, a PH sensor, a PH adjusting device, a chemical tank and a chemical injection pump are provided to bring an acidic chemical such as sulfuric acid or hydrochloric acid to a predetermined pH. There is a method to add up to. Also,
There is also a method of installing a carbon dioxide gas cylinder, introducing the carbon dioxide gas into a pH adjusting tank, and adjusting the pH with the carbon dioxide gas.
【０００３】[0003]
【発明が解決しようとする課題】酸性薬品を使う方法で
は、ＰＨ調整のために前項で例示したごとく種々の装
置、機器が必要になり、ＰＨセンサーの構成、薬品の補
充等のメンテナンスを必要とする。さらに、一般に使用
する酸性薬品が劇物等であることから、使用・保管中の
危険が予想される。炭酸ガスボンベを用いる方法でも、
高圧ガスとしての安全管理と定期的なガスの補充が必要
になる。The method using an acidic chemical requires various devices and equipment for pH adjustment, as exemplified in the preceding paragraph, and requires maintenance such as a PH sensor configuration and chemical replenishment. To do. Furthermore, since the acidic chemicals that are commonly used are deleterious substances, there is a risk of danger during use and storage. Even with the method using a carbon dioxide gas cylinder,
Safety management as high-pressure gas and regular replenishment of gas are required.
【０００４】本発明は上記のことに鑑みなされたもの
で、構成が簡単で、また日常のメンテナンスが不要とな
って維持管理が容易であり、さらに、安全性が高いＰＨ
調整装置を提供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, and has a simple structure, requires no daily maintenance, is easy to maintain, and has high safety.
The purpose is to provide an adjusting device.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係るＰＨ調整装置は、ＰＨ調整槽１内に散
気装置４を設置し、この気散装置４を、ブロワ１０を介
して生物処理装置５の上部空間に接続した構成となって
いる。In order to achieve the above object, a pH adjusting apparatus according to the present invention has an air diffuser 4 installed in a PH adjusting tank 1, and the air diffuser 4 is connected to a blower 10. It is configured to be connected to the upper space of the biological treatment device 5 via the above.
【０００６】[0006]
【作 用】生物処理装置５で発生した二酸化炭素を含
む処理ガスがＰＨ調整槽１内の処理水中に気散され、こ
れによりこの処理水のアルカリ性が中和される。[Operation] The treatment gas containing carbon dioxide generated in the biological treatment apparatus 5 is diffused into the treatment water in the pH adjusting tank 1, whereby the alkalinity of the treatment water is neutralized.
【０００７】[0007]
【実 施 例】本発明の実施例を図面に基づいて説明す
る。図中１はＰＨ調整槽であり、２はその流入口、３は
流出口である。ＰＨ調整槽１内には気散装置４が設置し
てある。一方５は有機性排水を処理する生物処理装置で
あり、この生物処理装置５は流入口６より流入した有機
性排水を生物処理して流出口７より排水するようになっ
ており、これの底部にブロワ８に接続した気散装置９が
設置してある。EXAMPLES Examples of the present invention will be described with reference to the drawings. In the figure, 1 is a pH adjusting tank, 2 is its inlet, and 3 is its outlet. An air diffuser 4 is installed in the pH adjusting tank 1. On the other hand, 5 is a biological treatment device for treating organic wastewater, and this biological treatment device 5 is adapted to biologically treat the organic wastewater that has flowed in through the inflow port 6 and then drain it through the outflow port 7. An air diffuser 9 connected to the blower 8 is installed.
【０００８】上記生物処理装置５の上部空間には有機排
水の生物処理に伴って発生する処理ガスが充満してい
る。そしてこの生物処理装置５の上部空間がブロワ１０
を介して上記ＰＨ調整槽１内に設置した気散装置４に接
続されている。The upper space of the biological treatment apparatus 5 is filled with a treated gas generated by the biological treatment of organic wastewater. The upper space of the biological treatment device 5 is the blower 10
It is connected to the air diffuser 4 installed in the pH adjusting tank 1 via.
【０００９】上記生物処理装置５にて発生する処理ガス
の成分は好気性処理の場合は、微生物に利用されなかっ
た曝気空気と微生物による有機物の酸化また細胞物質の
合成及び酸化により発生する二酸化炭素等のガスとの混
合物である。そしてこの処理ガスの二酸化炭素の濃度
は、生物処理槽に流入する有機物量、槽内の微生物濃
度、曝気強度等から概略予測できる。In the case of aerobic treatment, the components of the treatment gas generated in the biological treatment apparatus 5 are carbon dioxide generated by the aeration air not utilized by the microorganisms and the oxidation of organic substances by the microorganisms, or the synthesis and oxidation of cellular substances. It is a mixture with a gas such as. The concentration of carbon dioxide in the treated gas can be roughly estimated from the amount of organic substances flowing into the biological treatment tank, the concentration of microorganisms in the tank, the aeration strength, and the like.
【００１０】上記構成において、ＰＨ調整槽１内に設置
した気散装置４に接続したブロワ１０を駆動することに
より、この気散装置４よりＰＨ調整槽１内の処理水中
に、生物処理装置５にて発生した処理ガスが気散され、
処理水がこの処理ガスに曝気される。このとき、上記処
理ガスは、微生物に利用されなかった曝気空気と二酸化
炭素等のガスとの混合物であり、アルカリ性排水に溶解
しやすく、溶解することによりアルカリ性を酸性に変化
させる作用があることにより、ＰＨ調整槽１内の処理水
は上記生物処理装置５の処理ガスに接触して中和され、
流出口７より流出される。In the above configuration, by driving the blower 10 connected to the air diffuser 4 installed in the pH adjusting tank 1, the biological treatment apparatus 5 is introduced from the air diffuser 4 into the treated water in the PH adjusting tank 1. The processing gas generated at
Treated water is aerated to this treated gas. At this time, the treated gas is a mixture of aerated air that has not been used by microorganisms and a gas such as carbon dioxide, which is easily dissolved in alkaline wastewater, and by having the effect of changing the alkalinity to acidic by dissolving. , The treated water in the pH adjusting tank 1 is contacted with the treated gas of the biological treatment apparatus 5 and neutralized,
It flows out from the outlet 7.
【００１１】この装置で、例えば、生活排水処理用合併
浄化槽の好気性生物処理槽の排気を、搾乳ラインの洗浄
排水のＰＨ調整槽に導入して処理した結果、アルカリ性
排水のＰＨが約１０であったものが７〜８まで中和でき
た。With this apparatus, for example, the exhaust gas from the aerobic biological treatment tank of the combined septic tank for domestic wastewater treatment is introduced into the pH adjusting tank of the washing wastewater of the milking line, and as a result, the pH of the alkaline wastewater is about 10. What was there could be neutralized to 7-8.
【００１２】なお上記処理ガスの酸性成分が、主に弱酸
である二酸化炭素であること及びその濃度が低いことに
より、長時間大量の発生ガスを中和に用いても、アルカ
リ性排水のＰＨが中和を越えて、例えば生物処理に影響
を与えるような、強い酸性になることはない。したがっ
て、従来技術で必要であったＰＨの調整機構、すなわち
ＰＨセンサー、ＰＨ調整器がなくてもＰＨが下がり過ぎ
ることはなく、アルカリ性排水のＰＨを一般に放流可能
とされるＰＨ６〜ＰＨ８間で下げることが可能である。Since the acidic component of the treated gas is carbon dioxide, which is a weak acid, and its concentration is low, even if a large amount of generated gas is used for neutralization for a long time, the pH of the alkaline waste water is moderate. Beyond the sum, it does not become strongly acidic, eg affecting biological treatment. Therefore, the PH does not drop too much even without the PH adjusting mechanism, that is, the PH sensor and the PH adjuster required in the conventional technique, and the pH of the alkaline drainage is lowered between PH6 and PH8 which are generally allowed to be discharged. It is possible.
【００１３】[0013]
【発明の効果】本発明によれば、酸性薬剤あるいは二酸
化炭素ボンベを用いてＰＨ調整を行う装置に比較して、
必要機器がブロワひとつだけであること、薬品またはガ
スの補充の必要がないこと、ＰＨセンサーの補正等の日
常メンテナンスが不要であること、強酸、高圧ガス等の
危険な薬品を使用しないことにより、構成が簡単とな
り、また日常のメンテナンスが不要となって維持管理が
容易であり、さらに安全性が高い。EFFECTS OF THE INVENTION According to the present invention, as compared with an apparatus for adjusting pH using an acidic chemical agent or a carbon dioxide cylinder,
Due to the fact that only one blower is required, there is no need to replenish chemicals or gas, daily maintenance such as pH sensor correction is unnecessary, and dangerous chemicals such as strong acid or high pressure gas are not used. The configuration is simple, daily maintenance is not required, and maintenance is easy.
【図１】本発明の実施例を示す概略的な構成説明図であ
る。FIG. 1 is a schematic configuration explanatory view showing an embodiment of the present invention.
１…ＰＨ調整槽、２，６…流入口、３，７…流出口、
４，９…気散装置、５…生物処理装置、８，９…ブロ
ワ。1 ... PH adjusting tank, 2, 6 ... inlet, 3, 7 ... outlet,
4, 9 ... Aeration device, 5 ... Biological treatment device, 8, 9 ... Blower.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 9/00 ＺＡＢ ５０１ Ａ ５０２ Ｚ ５０３ Ｃ ５０４ Ａ Ｇ０５Ｄ 21/00 Ｃ 7740−3Ｈ (72)発明者 田辺 肇 北海道札幌市中央区北三条西一丁目二番地 大同ほくさん株式会社内 (72)発明者 前田 規夫 北海道旭川市南６条21丁目1978番地 大同 ほくさん株式会社内 (72)発明者 山本 正己 東京都目黒区大橋１丁目６番３号 小松化 成株式会社内 (72)発明者 鈴木 勇次 千葉県市原市潤井戸2082番地 小松化成株 式会社千葉工場内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C02F 9/00 ZAB 501 A 502 Z 503 C 504 A G05D 21/00 C 7740-3H (72) Invention Hajime Tanabe Hajime, Daido Hokusan Co., Ltd., Kitasanjo Nishi, 1-chome, Chuo-ku, Sapporo, Hokkaido (72) Inventor Norio Maeda, Minamijojo 21-chome, 1978, Asahikawa-shi, Hokkaido Daido Hokusan Co., Ltd. (72) Inventor Masami Yamamoto Tokyo Komatsu Kasei Co., Ltd. 1-6-3 Ohashi, Meguro-ku, Tokyo (72) Inventor Yuji Suzuki 2082 Izumihara, Chiba Prefecture Koido Kasei Co., Ltd. Chiba Plant
Claims (1)
この気散装置４を、ブロワ１０を介して生物処理装置５
の上部空間に接続したことを特徴とするＰＨ調整装置。1. An air diffuser 4 is installed in the pH adjusting tank 1,
This aeration device 4 is attached to a biological treatment device 5 via a blower 10.
A PH adjusting device characterized by being connected to the upper space of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18772693A JPH07204663A (en) | 1993-07-29 | 1993-07-29 | Ph value adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18772693A JPH07204663A (en) | 1993-07-29 | 1993-07-29 | Ph value adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07204663A true JPH07204663A (en) | 1995-08-08 |
Family
ID=16211111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18772693A Withdrawn JPH07204663A (en) | 1993-07-29 | 1993-07-29 | Ph value adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07204663A (en) |
-
1993
- 1993-07-29 JP JP18772693A patent/JPH07204663A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001003 |