JPS6341640B2 - - Google Patents
Info
- Publication number
- JPS6341640B2 JPS6341640B2 JP15075579A JP15075579A JPS6341640B2 JP S6341640 B2 JPS6341640 B2 JP S6341640B2 JP 15075579 A JP15075579 A JP 15075579A JP 15075579 A JP15075579 A JP 15075579A JP S6341640 B2 JPS6341640 B2 JP S6341640B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating disk
- rotating
- disk group
- air
- oxygen
- 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
- 239000007789 gas Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000005273 aeration Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 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
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000852 hydrogen donor Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
本発明は汚水のB.O.D低減、NH3の硝化ならび
に脱窒を同時に可能にした汚水の処理方法に関す
るものである。
汚水や廃水を活性汚泥法を利用して、空気曝気
してB.O.Dを下げ浄化する方法は永い間使用され
効果を上げているが、曝気槽で空気を噴き込んで
汚水を浄化する代りに、回転円板群及びそれに類
するものを浄化槽の中に約半分浸積し回転しなが
ら、汚水と空気のメジアに交互に接触する事によ
り、汚水中の微生物をその円板の表面上に繁殖さ
せ、その微生物の力で汚水中の有機物を酸化して
生物膜を作つて分解させB.O.Dを下げる処の所謂
る回転円板式生物酸化処理装置というのが、その
形状のコンパクト性とメーンテナンスの簡易さを
買われて最近急速に伸びている。尚極く最近では
円板群の表面にカツプを取り付け空気を送り空気
の浮力で回転体の回転を行う方式（特許第911200
号）の出現を見るに至つた。
又、最近の汚水処理の傾向は、第一次の物理化
学的処理、次いで、第二次の曝気槽によるB.O.D
の低下、SSの除去に留らず、第三次処理即ちり
ん、アンモニア、色、臭等を除去して処理水を工
業用水、出来得れば飲料水迄戻すことが行をれて
いる。
第２図は最近実施されている空気或いは酸素を
含むガス駆動式回転円板式生物化学的処理装置の
全体図一例で１４は回転円板群１１はその表面に
設けられたカツプでガス導入口１０から送られる
ガスが１３のデフユーザーに送られその表面の噴
出孔１３′から噴出する空気或いは酸素を含んだ
ガスが前記のカツプ１１に溜つてその浮力によつ
て回転円板群１４を矢印の方向へ回転させる様に
なつている。１２は回転軸１５は曝気槽である。
本発明の場合は、比の回転円板群１４の回転体
が第３図に示す断面図の様に、全面的に汚水中に
浸漬した形で使用するものである。
本件出願人は既に特願昭54−109058号にて本件
発明と類似の出願をした。それは回転円板群を水
中に全面的に浸漬して、窒素又は炭酸ガス等の不
活性ガスを駆動ガスとしてカツプ１１に送り込ん
で、NO- 2NO- 3態窒素を嫌気的に脱窒することに
あつた。
本発明にあつては装置としては、前回の出願と
殆ど変りがないが回転円板式生物化学的処理装置
１６の上部を開放している点、送入するガスが空
気或いは酸素を含んだガスであることである。
本発明の場合は、回転円板群が汚水中に全面的
に浸漬しているのであるから、一見嫌気的の様に
考えられるが駆動用の空気或いは酸素を含んだガ
スが、微生物の力により回転円板群の表面で有機
物を酸化して生物膜を作り、又NH3性窒素は酸
化されてNO2−Ｎ、NO3−Ｎに迄硝化が行われ
るのである。然も其の後の発明者等の実験の結果
で汚水の滞溜時間を長くすることにより此の
NO- 2NO- 3窒素も生物膜の奥の嫌気性の雰囲気の
中で脱窒されてN2となること、又特に本件発明
に於ては、回転円板群１４の表面に密にカツプ１
１が着いている回転円板式の汚水処理装置を用い
るので、デフユーザー１３の表面の噴出口１３′
から出る酸素を含有するガスは主としてカツプ１
１に送られ、回転円板間の間隙から回転円板群１
４の中心部に入るのは少ないので回転円板群１４
の内部は奥へ進むに従つて溶存酸素が少なく、嫌
気性雰囲気となる。そこで滞溜時間を長くする
と、NO2−Ｎ、NO3−Ｎを含む汚水が、回転円
板群１４の回転に連れて回転円板の間隙を通つ
て、回転円板群１４の内部の嫌気性の部分に入つ
て来ると、NO2−Ｎ、NO3−Ｎは脱窒されてN2
になることが分つた。即ち全浸漬型の回転円板式
生物化学的処理方法で下からの駆動用空気或いは
酸素を含むガスを送ることに依つて、B.O.Dの低
減、アンモニアの硝化、脱窒の３つの作用が同時
に行える事を見出したのである。
第３図は此の装置の断面図の一例で１６の回転
円板式生物化学的処理装置の中の回転円板群の表
面のカツプ１１の中に酸素を含んだ空気が入つて
円板群Ｐを矢印の方向に回転さすと同時に汚水中
のB.O.Dは下りアンモニアや有機性窒素は硝化し
且つ脱窒されるのである。特にNO- 2NO- 3が脱窒
されることは今迄知られていなかつた事実であ
る。此の際メタノール等を加える必要がなく汚水
中の有機物が水素供与体の役目をする。
次に第１図は本発明を含む第三次汚水処理装置
のフローシートの一例で、１は最初沈澱池、２は
原廃水貯槽、３浸漬型回転円板式生物化学的処理
槽、４沈澱槽、５りん除去装置、６減菌槽、７処
理水。
此でも分る様に３の装置が一切の浄化を行つて
呉れるので、別に脱窒工程再処理装置（メタノー
ル除去）を必要としないのが特徴である。
尚カツプの構造取付けの方式は第４図で示し、
その取付けの機構は第５図で示した。第５図はカ
ツプの取付けの詳細を示した。図に示す様に円板
の端部に取付座イ，ロを設けカツプイ′，ロ′にも
孔をあけボルトナツト止をする。回転円板はポリ
エチレン又はポリプロピレン等の如きプラスチツ
クから出来ており、表面積を大きくする為、波型
の板と平板を重ねて使用するのが普通である。そ
の一例を第６図、第７図に示した。第７図は円板
の組立の一例で、扇型の平板Ａと扇型の波板Ｂを
ずらして交互に並べ順次接着することで行われ
る。
第８図の１、第８図の２は円板群の断面図であ
る。波型B.Dには第８図の２の様にパス部Ｔが設
けられている。パス部はスラツジ及び廃水の通路
である。
今、実験装置で行つた浄化の結果を示す一例を
次に掲げることにしよう。
実施例 １
曝気槽の大きさ 巾1600ｍ／ｍ×長さ1900ｍ／ｍ
×深さ1550ｍ／ｍ
回転円板の直径 1200ｍ／ｍ
回転円板の表面積 200m2
回転数 1r.p.m
原 水 一般下水
滞留時間 5.5時間（但しB.O.Dのみ除去の場合
は2.0時間）
ガス送入 0.12m3／分 空気
カツプの形状 １ケ、巾200ｍ／ｍ 長さ400ｍ／
ｍ 深さ90ｍ／ｍ
Γ成 績 第４図参照
The present invention relates to a method for treating wastewater that makes it possible to simultaneously reduce the BOD of wastewater, nitrify NH3 , and denitrify it. The activated sludge method is used to aerate sewage and wastewater to lower the BOD and purify it. This method has been used for a long time and has been effective, but instead of purifying the sewage by blowing air in an aeration tank, By immersing about half of the disks and similar objects in a septic tank and rotating them, they alternately come into contact with the sewage and air media, causing microorganisms in the sewage to propagate on the surface of the disks. The so-called rotating disk type biological oxidation treatment equipment, which uses the power of microorganisms to oxidize organic matter in wastewater to create a biofilm and decompose it to lower BOD, is popular due to its compact shape and easy maintenance. It has recently been growing rapidly. More recently, a method has been developed in which a cup is attached to the surface of a group of disks and air is sent to rotate the rotating body using the buoyancy of the air (Patent No. 911200).
We have come to see the appearance of In addition, recent trends in sewage treatment include the first physicochemical treatment, followed by the second BOD treatment using an aeration tank.
In addition to reducing the water content and removing SS, tertiary treatment is being carried out, that is, removing phosphorus, ammonia, color, odor, etc., and returning the treated water to industrial water, preferably drinking water. FIG. 2 is an example of an overall view of a gas-driven rotating disk type biochemical treatment device containing air or oxygen that has been implemented recently. Reference numeral 14 indicates a rotating disk group 11 with a cup provided on its surface, and a gas inlet 10. The gas sent from the cup 11 is sent to the differential user 13, and air or oxygen-containing gas ejected from the blowout hole 13' on the surface of the cup 11 accumulates in the cup 11, and its buoyancy causes the rotating disk group 14 to move in the direction of the arrow. It is designed to rotate in the direction. 12 is a rotating shaft 15 is an aeration tank. In the case of the present invention, the rotating body of the rotary disk group 14 is used in a state where it is completely immersed in waste water, as shown in the sectional view shown in FIG. The applicant has already filed an application similar to the present invention in Japanese Patent Application No. 109058/1983. This involves completely immersing a group of rotating disks in water and sending an inert gas such as nitrogen or carbon dioxide as a driving gas into cup 11 to anaerobically denitrify NO - 2 NO - 3 -state nitrogen. It was hot. The device of the present invention is almost the same as the previous application, except that the upper part of the rotating disk type biochemical treatment device 16 is open, and the gas to be fed is air or a gas containing oxygen. It is a certain thing. In the case of the present invention, the rotating disk group is completely immersed in waste water, so although it may seem anaerobic at first glance, the driving air or oxygen-containing gas is On the surface of the rotating disk group, organic matter is oxidized to form a biofilm, and NH 3 nitrogen is oxidized and nitrified to NO 2 -N and NO 3 -N. However, as a result of subsequent experiments by the inventors, this problem could be solved by increasing the residence time of wastewater.
NO - 2 NO - 3 Nitrogen is also denitrified and becomes N 2 in the anaerobic atmosphere deep inside the biological film, and especially in the present invention, nitrogen is tightly cupped on the surface of the rotating disk group 14. 1
Since we use a rotating disk type sewage treatment device equipped with 1, the spout 13' on the surface of the differential user
The oxygen-containing gas coming out is mainly from cup 1.
from the gap between the rotating disks to the rotating disk group 1.
Since there are few that enter the center of 4, rotating disk group 14
The deeper you go inside, the less dissolved oxygen there is, and the atmosphere becomes anaerobic. Therefore, if the retention time is increased, the wastewater containing NO 2 -N and NO 3 -N passes through the gaps between the rotating disks as the rotating disk group 14 rotates, and becomes an anaerobic water inside the rotating disk group 14. When NO 2 −N and NO 3 −N enter the biological part, they are denitrified and become N 2
I found out that it would be. In other words, the three effects of BOD reduction, ammonia nitrification, and denitrification can be achieved simultaneously by sending driving air or oxygen-containing gas from below using a fully immersed rotating disk biochemical treatment method. They discovered this. Figure 3 is an example of a cross-sectional view of this device. Air containing oxygen enters the cup 11 on the surface of the rotating disk group in the 16 rotating disk type biochemical treatment device, and the disk group P. At the same time as the machine is rotated in the direction of the arrow, BOD in the wastewater is removed, ammonia and organic nitrogen are nitrified, and denitrified. In particular, it has not been known until now that NO - 2 NO - 3 is denitrified. In this case, there is no need to add methanol or the like, and the organic matter in the wastewater acts as a hydrogen donor. Next, Fig. 1 is an example of a flow sheet of a tertiary sewage treatment equipment including the present invention, where 1 is a primary sedimentation tank, 2 is a raw wastewater storage tank, 3 is a submerged rotating disk type biochemical treatment tank, and 4 is a sedimentation tank. , 5 phosphorus removal equipment, 6 sterilization tank, 7 treated water. As can be seen in this case, the device 3 performs all the purification and is characterized by the fact that it does not require a separate denitrification process reprocessing device (methanol removal). The structure of the cup is shown in Figure 4.
The mounting mechanism is shown in FIG. Figure 5 shows the details of the cup installation. As shown in the figure, mounting seats A and B are provided at the end of the disk, and holes are also made in the cups ' and B' to secure bolts and nuts. The rotating disk is made of plastic such as polyethylene or polypropylene, and is typically made of corrugated and flat plates stacked together to increase the surface area. An example of this is shown in FIGS. 6 and 7. FIG. 7 shows an example of the assembly of the disks, which is carried out by sequentially arranging fan-shaped flat plates A and fan-shaped corrugated plates B with offsets and sequentially adhering them. 1 in FIG. 8 and 2 in FIG. 8 are cross-sectional views of the disk group. The wave-shaped BD is provided with a path portion T as shown in 2 in FIG. The path section is a passageway for sludge and wastewater. The following is an example of the results of purification carried out using an experimental device. Example 1 Size of aeration tank Width 1600m/m x Length 1900m/m
×Depth 1550m/m Diameter of rotating disk 1200m/m Surface area of rotating disk 200m 2 Number of revolutions 1r.pm Raw water General sewage retention time 5.5 hours (2.0 hours if only BOD is removed) Gas supply 0.12m 3 /min Air cup shape: 1 piece, width 200m/m, length 400m/
m Depth 90m/m Γ Results See Figure 4
【表】
即ち汚水に対し浸漬した回転円板式生物化学的
処理装置を１台置く丈で(1)B.O.Dの低減、(2)硝
化、(3)脱窒が同時に行えるのである。更に此をシ
リーズ又はパラレルに数段設置すれば完壁に汚水
は浄化される。
普通の回転円板式生物酸化装置が空気中に出た
時接触する酸素の量は、ガス駆動用の空気中の酸
素で充分賄えるのである。
最後に本発明方法の利点に付いて此を個条書に
示せば
(1) 本発明によれば脱窒設備再曝気槽が不要とな
り設備費が安くなる。
(2) 回転円板式生物化学的処理装置の回転円板群
が全面的に汚水中に浸漬するので、浮力により
その重量が軽くなり、機械強度の負荷が減り回
転動力費が著しく低減される。
(3) 従来の円板法に較べて、滞留時間が長くと
れ、低濃度の溶在酸素で処理出来る。
(4) 空気或いは酸素を含んだガス量が少なくて
も、回転円板の回転による撹拌により槽内が一
率に撹拌されるので不必要な汚泥の沈降がな
い。
(5) 接触面積10000m2の回転体を用いた時、空気
量は0.6／m2即ち６m3／分で回転する。
此の場合、処理量は従来の円板法の20％増の
1200m3／日処理可能で、使用動力は
普通の活性汚泥法 0.16〜0.24KWH／m3処理水
従来の円板法 0.07〜0.12 〃 〃
本発明では 0.035〜0.05 〃 〃
となり著しく少なくて済む。[Table] In other words, by placing one rotary disk biochemical treatment device immersed in wastewater, it is possible to simultaneously perform (1) BOD reduction, (2) nitrification, and (3) denitrification. Furthermore, if several stages of this are installed in series or parallel, sewage water will be completely purified. The amount of oxygen that a normal rotating disk biooxidizer comes into contact with when it is exposed to the air can be covered by the oxygen in the air used for the gas drive. Finally, the advantages of the method of the present invention can be summarized as follows: (1) According to the present invention, a denitrification equipment re-aeration tank is not required, and the equipment cost is reduced. (2) Since the rotating disk group of the rotating disk type biochemical treatment device is completely immersed in wastewater, its weight is reduced due to buoyancy, the load on mechanical strength is reduced, and rotational power costs are significantly reduced. (3) Compared to the conventional disk method, it has a longer residence time and can be processed with a lower concentration of dissolved oxygen. (4) Even if the amount of air or oxygen-containing gas is small, the inside of the tank is uniformly stirred by the rotation of the rotating disc, so there is no unnecessary settling of sludge. (5) When a rotating body with a contact area of 10,000 m 2 is used, the amount of air rotates at 0.6/m 2 or 6 m 3 /min. In this case, the throughput is 20% higher than the conventional disk method.
1200 m 3 /day can be treated, and the power used is significantly less than the conventional activated sludge method: 0.16 to 0.24 KWH/m 3 treated water, the conventional disk method: 0.07 to 0.12, and the present invention: 0.035 to 0.05.
第１図は本発明を含んだ廃水の三次処理の一例
のフローシート。第２図は空気或いは酸素を含ん
だガス駆動式による回転円板式生物化学的処理装
置の一例の一部切開いた全体視図。第３図は本発
明による、B.O.D低減・硝化・脱窒処理装置の一
例の断面図。第４図の１はカツプ１個の側面図と
その断面図の一例、第４図の２は回転円板群の表
面へカツプを取付けた図。第５図は回転円板群１
４へカツプ取付けの機構。第６図はカツプを取り
外した回転円板群の全体図。第７図はその詳細
図。第８図は回転円板群の断面図の一例を示す。
主要なる部分を示す符号の説明、１０は空気或
いは酸素を含むガス導入口、１１はカツプ、１２
……回転軸、１３……デユフユザー、１３′……
噴出孔、１４……回転円板群、１５……空気或い
は酸素を含んだガス駆動式回転円板式曝気槽、１
６……酸素を含有するガスで駆動する浸漬型回転
円板式生物化学的処理装置、１７……槽壁、１８
……汚水入口、１９……処理水出口、２０……ガ
スブロワー、２１……汚水、Ｐ……回転円板群の
断面。
FIG. 1 is a flow sheet of an example of tertiary treatment of wastewater including the present invention. FIG. 2 is a partly cut-away overall view of an example of a rotating disk type biochemical treatment device driven by a gas containing air or oxygen. FIG. 3 is a sectional view of an example of a BOD reduction, nitrification, and denitrification treatment apparatus according to the present invention. 1 in FIG. 4 is an example of a side view and a sectional view of one cup, and 2 in FIG. 4 is a diagram showing the cup attached to the surface of a group of rotating disks. Figure 5 shows rotating disk group 1.
4. Cup attachment mechanism. Figure 6 is an overall view of the rotating disk group with the cup removed. Figure 7 is a detailed diagram. FIG. 8 shows an example of a sectional view of the rotating disk group. Explanation of the symbols indicating the main parts: 10 is a gas inlet containing air or oxygen, 11 is a cup, 12
...rotation axis, 13... dufuuser, 13'...
Nozzle hole, 14... Rotating disk group, 15... Gas-driven rotating disk type aeration tank containing air or oxygen, 1
6... Submerged rotating disk type biochemical treatment device driven by oxygen-containing gas, 17... Tank wall, 18
... Sewage inlet, 19 ... Treated water outlet, 20 ... Gas blower, 21 ... Sewage, P ... Cross section of rotating disk group.
Claims (1)
含むガスを溜めて、その浮力により回転円板群１
４を回転させるカツプ１１を密に設けた、回転円
板式生物化学的処理装置にあつて、回転円板群１
４を汚水中に全面浸積して回転させることによ
り、汚水のB.O.Dの低減、汚水中のアンモニアの
硝化ならびに脱窒を同時に行なわせることを特徴
とする汚水の処理方法。1 Air or oxygen-containing gas is stored on the surface of the rotating disk group 14, and its buoyancy causes the rotating disk group 1 to
In a rotating disk type biochemical treatment device, in which cups 11 for rotating the rotating disk group 1 are closely provided, the rotating disk group 1
A method for treating sewage water, which is characterized in that by completely immersing 4 in sewage water and rotating it, BOD of the sewage water is reduced, and ammonia nitrification and denitrification of the sewage water are simultaneously performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15075579A JPS5673596A (en) | 1979-11-22 | 1979-11-22 | Treatment of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15075579A JPS5673596A (en) | 1979-11-22 | 1979-11-22 | Treatment of sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5673596A JPS5673596A (en) | 1981-06-18 |
| JPS6341640B2 true JPS6341640B2 (en) | 1988-08-18 |
Family
ID=15503699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15075579A Granted JPS5673596A (en) | 1979-11-22 | 1979-11-22 | Treatment of sewage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5673596A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261562A (en) * | 2014-10-13 | 2015-01-07 | 惠川（上海）环保科技有限公司 | 360-degree-rotating underwater biological bed treatment device and method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668387A (en) * | 1985-09-23 | 1987-05-26 | Envirex Inc. | Deep submergence rotating biological contactor apparatus |
| KR100398139B1 (en) * | 2002-01-28 | 2003-09-19 | 동성이앤지(주) | Biological Nutrient Removal Process that Simultaneously make an oxic, microaeration and anoxic Zone by a Submerged Moving Media and Reactor Volume Optimum |
| CN102417237B (en) * | 2011-10-14 | 2013-05-01 | 湖南大学 | Rotary SBR bioreactor used for treating waste water containing ammonia-N and waste water treating method thereof |
| CN103183408B (en) * | 2013-01-22 | 2014-04-23 | 北京桑德环境工程有限公司 | Pneumatic biological rotating disc type sewage treatment equipment |
| JP7398286B2 (en) * | 2020-01-28 | 2023-12-14 | 聡 安斎 | water purification equipment |
-
1979
- 1979-11-22 JP JP15075579A patent/JPS5673596A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261562A (en) * | 2014-10-13 | 2015-01-07 | 惠川（上海）环保科技有限公司 | 360-degree-rotating underwater biological bed treatment device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5673596A (en) | 1981-06-18 |
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