JPH0137760Y2 - - Google Patents
Info
- Publication number
- JPH0137760Y2 JPH0137760Y2 JP1985152613U JP15261385U JPH0137760Y2 JP H0137760 Y2 JPH0137760 Y2 JP H0137760Y2 JP 1985152613 U JP1985152613 U JP 1985152613U JP 15261385 U JP15261385 U JP 15261385U JP H0137760 Y2 JPH0137760 Y2 JP H0137760Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating disk
- tank
- denitrification
- nitrification
- disk 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007654 immersion Methods 0.000 claims description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000010802 sludge Substances 0.000 description 10
- 230000001546 nitrifying effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method 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
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は回転円板型脱窒装置に関する。[Detailed explanation of the idea] Industrial applications The present invention relates to a rotating disk type denitrification device.
従来の技術
生物学的脱窒装置の一種として回転円板型脱窒
装置がある。これは、処理槽内に、複数の回転円
板にて構成されるロータを設け、このロータを回
転させることにより回転円板の表面に生物膜を形
成し、この生物膜により水処理を行なうものであ
る。従来の回転円板型脱窒装置は曝気用回転円板
槽と、硝化用回転円板槽と、脱窒用回転円板槽と
をこの順に配置したものが用いられている。BACKGROUND ART A rotating disk type denitrification device is a type of biological denitrification device. This is a system in which a rotor consisting of multiple rotating disks is installed in the treatment tank, and by rotating this rotor, a biofilm is formed on the surface of the rotating disk, and water treatment is performed using this biofilm. It is. A conventional rotating disk type denitrification device has a rotating disk tank for aeration, a rotating disk tank for nitrification, and a rotating disk tank for denitrification arranged in this order.
考案が解決しようとする問題点
ところが、上記のような従来のものでは、脱窒
処理は脱窒用回転円板槽のみでしか行なわれない
ため、高負荷の場合等において十分な処理能力が
得られないという問題がある。Problems that the invention aims to solve However, with the conventional method described above, denitrification treatment is performed only in the rotating disk tank for denitrification, so it is difficult to obtain sufficient processing capacity under high loads. The problem is that it cannot be done.
そこで本考案は、十分な脱窒処理能力を得るこ
とができるようにすることを目的とする。 Therefore, an object of the present invention is to make it possible to obtain sufficient denitrification treatment capacity.
問題点を解決するための手段
上記目的を達成するため本考案は、
前脱窒用回転円板槽と、硝化用回転円板槽と、
脱窒用回転円板槽とをこの順に配置し、
前脱窒用回転円板槽における回転円板の浸水率
を60〜80％の範囲に設定し、
硝化用回転円板槽からの硝化液を前脱窒用回転
円板槽の底部に注入し、
たものである。Means for Solving the Problems In order to achieve the above object, the present invention includes a rotating disk tank for pre-denitrification, a rotating disk tank for nitrification,
The rotating disk tank for denitrification and the rotating disk tank for nitrification are arranged in this order, the water immersion rate of the rotating disk in the rotating disk tank for pre-denitrification is set in the range of 60 to 80%, and the nitrification liquid from the rotating disk tank for nitrification is was injected into the bottom of a rotating disk tank for pre-denitrification.
作 用
このようなものであると、硝化液を前脱窒用回
転円板槽に注入したため、この前脱窒用回転円板
槽内で脱窒処理を行なうことができ、この結果脱
窒用回転円板槽の負荷を軽減できて十分な処理能
力を達成できる。また、前脱窒用回転円板槽にお
ける回転円板の浸水率を60〜80％の範囲に設定し
たため、この前脱窒用回転円板槽において一部好
気的な嫌気処理を行なうことができ、このため
BOD除去効果を得ることができる。さらに、硝
化液を前脱窒用回転円板槽の底部に注入するもの
であるため前記嫌気処理により回転円板に付着し
た汚泥を剥離させることが可能となる。Effect With this type of system, since the nitrifying solution is injected into the rotating disk tank for pre-denitrification, denitrification treatment can be carried out in the rotating disk tank for pre-denitrification. The load on the rotating disk tank can be reduced and sufficient processing capacity can be achieved. In addition, since the water immersion rate of the rotating disk in the rotating disk tank for pre-denitrification was set in the range of 60 to 80%, it is possible to perform partial aerobic and anaerobic treatment in the rotating disk tank for pre-denitrification. can, for this reason
BOD removal effect can be obtained. Furthermore, since the nitrifying solution is injected into the bottom of the rotating disc tank for pre-denitrification, the sludge adhering to the rotating disc can be peeled off by the anaerobic treatment.
実施例
以下、本考案の一実施例を図面にもとづいて説
明する。第１図において、１は前脱窒用回転円板
槽で、被処理原液の供給路２が接続されている。
３は回転円板で、浸水率が60〜80％の範囲となる
ように設置されている。前脱窒用回転円板槽１の
下流側には、硝化用回転円板槽４が設けられてい
る。５は回転円板で、その浸水率は40％に設定さ
れている。硝化用回転円板槽４からの硝化液は、
脱窒用回転円板槽６に供給されている。また、硝
化液の一部は、ポンプ７を有した循環路８を通
り、前脱窒用回転円板槽１の底部に注入されてい
る。Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. In FIG. 1, reference numeral 1 denotes a rotating disk tank for pre-denitrification, to which a supply path 2 for the stock solution to be treated is connected.
3 is a rotating disk, which is installed so that the water immersion rate is in the range of 60 to 80%. A rotating disk tank 4 for nitrification is provided downstream of the rotating disk tank 1 for pre-denitrification. 5 is a rotating disk whose water immersion rate is set to 40%. The nitrifying liquid from the rotating disk tank 4 for nitrification is
It is supplied to a rotating disk tank 6 for denitrification. Further, a part of the nitrification liquid passes through a circulation path 8 having a pump 7 and is injected into the bottom of the rotating disc tank 1 for pre-denitrification.
脱窒用回転円板槽６の回転円板９は、浸水率が
100％すなわち完全に水没された構成となつてい
る。１０はメタノールタンクで、ポンプ１１を有
したメタノール供給路１２が脱窒用回転円板槽６
に導かれている。槽６内においては、脱窒により
生じた窒素ガスが汚泥に付着し、これがスカム１
３となつて浮遊するが、１４はこのスカム１３を
除去するためのスカムスキマー、１５はスカム１
３を排出するためのスカムピツトである。 The rotating disk 9 of the rotating disk tank 6 for denitrification has a water immersion rate.
It has a 100%, or completely submerged, configuration. 10 is a methanol tank, and a methanol supply path 12 having a pump 11 is connected to a rotating disk tank 6 for denitrification.
guided by. In tank 6, nitrogen gas generated by denitrification adheres to the sludge, and this becomes scum 1.
14 is a scum skimmer for removing this scum 13, and 15 is a scum 1.
This is a scum pit for discharging 3.
脱窒用回転円板槽６の下流側には、再曝気用回
転円板槽１６が設けられている。１７は回転円板
で、その浸水率は40％に設定されている。また、
再曝気用回転円板槽１６の下流側には凝集沈殿池
１８が設けられている。１９は排泥ポンプ２０を
有した排泥路で、図外の汚泥濃縮槽へ導かれてい
る。 A rotating disk tank 16 for reaeration is provided downstream of the rotating disk tank 6 for denitrification. 17 is a rotating disk whose water immersion rate is set to 40%. Also,
A coagulation sedimentation basin 18 is provided downstream of the rotating disc tank 16 for reaeration. Reference numeral 19 denotes a sludge drainage path having a sludge pump 20, which is led to a sludge thickening tank (not shown).
上記構成において、被処理原液はまず前脱窒用
回転円板槽１へ供給される。ここで、回転円板３
の浸水率が60〜80％の範囲となるように設定され
ているため、一部好気的な嫌気処理が行なわれ、
BOD除去処理がなされる。また、硝化用回転円
板槽４からの硝化液が循環路８を経て供給される
ため、槽１内において前脱窒処理が行なわれる。
また、嫌気性処理により回転円板３に汚泥が付着
成長するが、硝化液を槽１内底部に供給している
ことから、上記汚泥の剥離に寄与することが可能
となる。なお、回転円板３の浸水率を60〜80％の
範囲に設定したのは、この範囲以下になると嫌気
性処理が不可能となり、またこの範囲以上になる
と一部好気的な処理が不可能となるためである。 In the above configuration, the stock solution to be treated is first supplied to the rotating disk tank 1 for pre-denitrification. Here, rotating disk 3
Since the water inundation rate is set to be in the range of 60 to 80%, some aerobic and anaerobic treatment is performed.
BOD removal processing is performed. Further, since the nitrifying liquid from the rotating disk tank 4 for nitrification is supplied through the circulation path 8, a pre-denitrification process is performed in the tank 1.
Further, although sludge adheres to and grows on the rotating disk 3 due to the anaerobic treatment, since the nitrifying solution is supplied to the inner bottom of the tank 1, it is possible to contribute to the separation of the sludge. The reason why the water immersion rate of the rotating disk 3 was set in the range of 60 to 80% is because below this range, anaerobic treatment is impossible, and above this range, aerobic treatment is partially impossible. This is because it becomes possible.
前脱窒用回転円板槽１内で前脱窒処理および
BOD除去処理がなされた被処理原液は、次に硝
化用回転円板槽４内で好気性条件のもとで硝化処
理される。この結果生じた硝化液は、その大部分
が脱窒用回転円板槽６に送られ、かつその一部が
循環路８を経て前脱窒用回転円板槽１へ送られ
る。 Pre-denitrification treatment and
The stock solution subjected to the BOD removal treatment is then subjected to nitrification treatment under aerobic conditions in the rotating disk tank 4 for nitrification. Most of the resulting nitrified liquid is sent to the rotating disc tank 6 for denitrification, and a part of it is sent to the rotating disc tank 1 for pre-denitrification via the circulation path 8.
脱窒用回転円板槽６内ではメタノールタンク１
０から供給されるメタノールが混合されて脱窒処
理が行なわれる。脱窒処理により生じたスカム１
３はスカムスキマー１４にてスカムピツト１５に
排出される。処理された液は再曝気用回転円板槽
１６に送られ、好気性条件のもとで曝気される。
曝気後の液は凝集沈殿池１８へ送られ、液中に含
まれる汚泥が凝集沈殿され、この汚泥は排泥路１
９を経て図外の汚泥濃縮槽へ排出される。 In the rotating disk tank 6 for denitrification, there is a methanol tank 1.
Methanol supplied from 0 is mixed and denitrification treatment is performed. Scum 1 generated by denitrification treatment
3 is discharged into a scum pit 15 by a scum skimmer 14. The treated liquid is sent to a rotating disk tank 16 for reaeration and aerated under aerobic conditions.
The aerated liquid is sent to the coagulation sedimentation tank 18, where the sludge contained in the liquid is coagulated and precipitated.
9 and is discharged to a sludge thickening tank (not shown).
考案の効果
以上述べたように本考案によると、前脱窒用回
転円板槽内で脱窒処理を行なうことができるた
め、脱窒用回転円板槽の負荷を軽減できて十分な
処理能力を達成でき、また前脱窒用回転円板槽内
でBOD除去処理を行なうこともでき、さらに前
脱窒用回転円板槽の底部に硝化液を注入すること
から、槽内の回転円板に付着した汚泥を剥離する
こともできる。Effects of the invention As described above, according to the present invention, denitrification can be carried out in the rotating disk tank for pre-denitrification, reducing the load on the rotating disk tank for denitrification and achieving sufficient processing capacity. It is also possible to perform BOD removal treatment in the rotating disk tank for pre-denitrification, and since the nitrifying solution is injected into the bottom of the rotating disk tank for pre-denitrification, the rotating disk inside the tank can be It is also possible to remove sludge that has adhered to the surface.
第１図は本考案の一実施例の概略構成図であ
る。
１……前脱窒用回転円板槽、３……回転円板、
４……硝化用回転円板槽、６……脱窒用回転円板
槽、８……循環路。
FIG. 1 is a schematic diagram of an embodiment of the present invention. 1... Rotating disc tank for pre-denitrification, 3... Rotating disc,
4... Rotating disk tank for nitrification, 6... Rotating disk tank for denitrification, 8... Circulation path.
Claims (1)
脱窒用回転円板槽とをこの順に配置し、 前脱窒用回転円板槽における回転円板の浸水率
を60〜80％の範囲に設定し、 硝化用回転円板槽からの硝化液を前脱窒用回転
円板槽の底部に注入し、 たことを特徴とする回転円板型脱窒装置。[Scope of claim for utility model registration] A rotating disk tank for pre-denitrification, a rotating disk tank for nitrification,
The rotating disk tank for denitrification and the rotating disk tank for nitrification are arranged in this order, and the water immersion rate of the rotating disk in the rotating disk tank for pre-denitrification is set in the range of 60 to 80%, and the nitrification liquid from the rotating disk tank for nitrification is A rotating disk denitrification device characterized by injecting water into the bottom of a rotating disk tank for pre-denitrification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985152613U JPH0137760Y2 (en) | 1985-10-04 | 1985-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985152613U JPH0137760Y2 (en) | 1985-10-04 | 1985-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6262897U JPS6262897U (en) | 1987-04-18 |
| JPH0137760Y2 true JPH0137760Y2 (en) | 1989-11-14 |
Family
ID=31070748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985152613U Expired JPH0137760Y2 (en) | 1985-10-04 | 1985-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0137760Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100483305B1 (en) * | 2002-05-17 | 2005-04-15 | 한라산업개발 주식회사 | Biological Nutrient Removal Device Using Rotating Biological Contactor Package system |
-
1985
- 1985-10-04 JP JP1985152613U patent/JPH0137760Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6262897U (en) | 1987-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2659167B2 (en) | Sewage denitrification dephosphorization method and apparatus | |
| JP3351149B2 (en) | Simultaneous removal of nitrogen and phosphorus from wastewater. | |
| CN209759222U (en) | Novel food processing waste water treatment equipment | |
| JPH0137760Y2 (en) | ||
| JP3221168B2 (en) | Wastewater nitrogen removal method and apparatus | |
| JPS57187097A (en) | Treatment of organic waste water | |
| JPH0722757B2 (en) | Biological removal method of nitrogen and phosphorus and its treatment device | |
| JPS649074B2 (en) | ||
| JP2504248B2 (en) | Sewage treatment equipment | |
| JPS62244496A (en) | Treatment of waste water | |
| JPS586294A (en) | Device and method for treatment of water | |
| US5500119A (en) | Submerged fixed media for nitrification | |
| JPH05192688A (en) | Anaerobic-aerobic activated sludge treating device using buffer tank | |
| JPS645959B2 (en) | ||
| JPS643557B2 (en) | ||
| JP2000325992A (en) | Waste water treatment apparatus with sludge concentrating means | |
| JPH05177195A (en) | Treatment process for waste water | |
| JPH0722756B2 (en) | Biological denitrification and dephosphorization methods for wastewater | |
| JPH0459959B2 (en) | ||
| JPH0253118B2 (en) | ||
| JPS5938839B2 (en) | Method and device for treating nitrogen-containing organic wastewater | |
| JPS5820298A (en) | Purification of sewage | |
| JPH0576893A (en) | Treatment of waste water | |
| JPH078993A (en) | Double tank-type biological reactor apparatus | |
| JPS56155688A (en) | Treatment of organic waste water |