JPS63232891A - Batch type activated sludge waste water treating device - Google Patents
Batch type activated sludge waste water treating deviceInfo
- Publication number
- JPS63232891A JPS63232891A JP62067312A JP6731287A JPS63232891A JP S63232891 A JPS63232891 A JP S63232891A JP 62067312 A JP62067312 A JP 62067312A JP 6731287 A JP6731287 A JP 6731287A JP S63232891 A JPS63232891 A JP S63232891A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- activated sludge
- aeration
- treating vessel
- treatment 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 26
- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 239000006228 supernatant Substances 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 21
- 244000005700 microbiome Species 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 239000000969 carrier Substances 0.000 claims description 5
- 239000011494 foam glass Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 15
- 241000894006 Bacteria Species 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 8
- 239000011574 phosphorus Substances 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000003100 immobilizing effect Effects 0.000 abstract 3
- 238000005276 aerator Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910021569 Manganese fluoride Inorganic materials 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- CTNMMTCXUUFYAP-UHFFFAOYSA-L difluoromanganese Chemical compound F[Mn]F CTNMMTCXUUFYAP-UHFFFAOYSA-L 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000605159 Nitrobacter Species 0.000 description 1
- 241000605122 Nitrosomonas Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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)
- Treatment Of Biological Wastes In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は回分式活性汚泥法による廃水処理装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wastewater treatment apparatus using a batch activated sludge method.
回分式活性汚泥法による廃水処理装置は、処理槽に廃水
を供給するための送液管と沈降処理後の上澄液を排出す
るための排出管と沈降汚泥を排出するための汚泥排出口
を備え、かつ処理槽内底部から空気を送入する曝気装置
を備えて、処理槽に廃水を供給し曝気装置を作動して好
気性微生物によって廃水中のＢＯＤ成分の分解を行った
後活性汚泥を沈降せしめ沈降汚泥と上澄の処理液を排出
させるもので、一つの処理槽で曝気と沈降分離を行うこ
とから装置の設置スペースが少くて渋み、運転管理が簡
便である。Wastewater treatment equipment using the batch activated sludge method has a liquid supply pipe for supplying wastewater to the treatment tank, a discharge pipe for discharging the supernatant liquid after sedimentation treatment, and a sludge discharge port for discharging the settled sludge. The wastewater is supplied to the treatment tank, the aeration device is activated, the BOD components in the wastewater are decomposed by aerobic microorganisms, and then the activated sludge is converted into activated sludge. This system discharges settled sludge and supernatant treated liquid, and since aeration and sedimentation separation are performed in one treatment tank, the installation space for the equipment is small, making operation management simple.
このため特に昼間作業で廃水の流出時間が一定である中
小規模の廃水処理に広く用いられている。For this reason, it is widely used in small and medium-sized wastewater treatment, especially during daytime operations where the outflow time of wastewater is constant.
しかしながら従来の装置においては上澄の処理液の排出
時に沈降しずらい微小な嫌気性菌が流出するので処理槽
内の嫌気性菌が所定量確保されずその結果処理水を均質
なものにすることが難しいという欠点があり、また廃水
中の窒素やリン分については除去率が低く機能向上が要
求されている。However, in conventional equipment, when the supernatant treatment liquid is discharged, minute anaerobic bacteria that are difficult to settle out flow out, making it impossible to secure the required amount of anaerobic bacteria in the treatment tank, resulting in a homogeneous treated water. However, the removal rate of nitrogen and phosphorus in wastewater is low, and improvements in functionality are required.
本発明は上記の点に鑑み、廃水を充分効率よく均質に処
理できかつ窒素およびリン分についても除去率の高い回
分式活性汚泥廃水処理装置を得ることを目的としている
。In view of the above points, the present invention aims to provide a batch-type activated sludge wastewater treatment device that can treat wastewater sufficiently efficiently and homogeneously and has a high removal rate for nitrogen and phosphorus.
本究明は処理槽内に微生物固定化担体を充填したドラフ
トチューブを縦方向に配設したことを特徴とするもので
ある。The present study is characterized in that a draft tube filled with microorganism immobilization carriers is arranged vertically in the processing tank.
したがって、処理槽内に供給された廃水は、供給される
空気のエアーリフト効果により十分撹拌し、ドラフトデ
ユープ内の微生物固定化担体に多量に接触し効率よく曝
気が行われるとともに、常に必要量の微生物が存在する
ので安定した処理がなされる。Therefore, the wastewater supplied to the treatment tank is sufficiently agitated by the air lift effect of the supplied air, comes in contact with a large amount of microorganism immobilization carriers in the draft duplex, and is efficiently aerated, and the required amount of microorganisms is always maintained. exists, so stable processing is achieved.
以下、本発明に係る回分式汚泥廃水処理装置の一実施例
を第１図乃至第３図に基づいて説明する。EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the batch type sludge wastewater treatment apparatus according to the present invention will be described based on FIGS. 1 to 3.
処理槽１は、その上部に廃水の貯留槽２から送液ポンプ
３にて廃水を供給する送液管４が接続され、また処理槽
１の中間部に処理水の上澄液を弁５を介して送出する排
出管６が接続されている。The treatment tank 1 has a liquid supply pipe 4 connected to its upper part that supplies wastewater from a wastewater storage tank 2 with a liquid supply pump 3, and a valve 5 that supplies the supernatant liquid of the treated water to the middle part of the treatment tank 1. A discharge pipe 6 is connected thereto.
さらに処理槽１下部に沈降汚泥を排出するための汚泥排
出管７が接続されている。Furthermore, a sludge discharge pipe 7 for discharging settled sludge is connected to the lower part of the treatment tank 1.
そして処理槽１内には微生物固定化担体８を充填したド
ラフトチューブ９が７本その軸線方向を縦方向にして処
理槽１の底部より浮かせて設けられている（第３図参照
）。ドラフトチューブ９同士は連結部材１０によって連
結され処理槽１に連結部材１１で固定されている。In the processing tank 1, seven draft tubes 9 filled with microorganism immobilization carriers 8 are provided so as to float above the bottom of the processing tank 1 with their axes oriented vertically (see FIG. 3). The draft tubes 9 are connected to each other by a connecting member 10 and fixed to the processing tank 1 by a connecting member 11.
処理槽１の底部にはブロワ１２に接続された送気管１３
が配管されており、ドラフトチューブ９の中空部下方に
エアの吹出口がそれぞれ設けられている。At the bottom of the treatment tank 1 is an air pipe 13 connected to a blower 12.
are piped, and air outlets are provided in the hollow lower part of the draft tube 9, respectively.
ドラフトチューブ９はその詳細を第２図に示すように微
生物固定化担体８が流出しない程度の孔１４を多数有す
る２重管からなるもので、この２重管の間隙に微生物固
定化担体８が充填されている。As the details of the draft tube 9 are shown in FIG. 2, it is made of a double tube having a large number of holes 14 that are large enough to prevent the microorganism immobilized carrier 8 from flowing out. Filled.
この微生物固定化担体８は、例えば高多孔性粒状泡ガラ
スを担持体として用いる。この−例は、略４１ＩＩ１１
径の大きさで、化学組成は酸化ケイ素（Ｓ１０２〉を主
成分（６９，０％）とし酸化アルミニウム（Ａｌ１０３
）、酸化カルシウム（Ｃａｂ）、酸化マグネシウム（Ｍ
ｇＯ）、Ｒ化ナトリウム（Ｎａ２０）、酸化鉄Ｉｆ （
Ｆｅ２０ａ ）、酸化チタニウム（ＴｉＯ２）、Ｉｆｆ
ｆ化マンガン（ＭｎＯ）。This microorganism immobilization carrier 8 uses, for example, highly porous granular foam glass as a carrier. This example is approximately 41II11
The chemical composition is mainly composed of silicon oxide (S102) (69.0%) and aluminum oxide (Al103).
), calcium oxide (Cab), magnesium oxide (M
gO), sodium R oxide (Na20), iron oxide If (
Fe20a), titanium oxide (TiO2), Iff
Manganese fluoride (MnO).
酸化バリウム（Ｂａｄ＞、三酸化硫黄（８０３）等を含
んでいる。また、物性は比表面積３６ｒｄ１０゜最高容
積１威／（１，嵩比重が０．３９、真比重が０゜６８で
あり、吸水率（Ｖ／Ｖ）は８０．４％、圧縮強度は２．
６８Ｋａである。Contains barium oxide (Bad>), sulfur trioxide (803), etc.In addition, the physical properties are specific surface area 36rd10°, maximum volume 1w/(1, bulk specific gravity 0.39, true specific gravity 0°68, The water absorption rate (V/V) is 80.4%, and the compressive strength is 2.
It is 68Ka.
ドラフトチューブ９は第３図に示すように処理槽１内の
液全体がエアリフト効果によって十分循環されるように
配置されている。１５は汚泥排出管７に設けた弁である
（第１図幸照）。As shown in FIG. 3, the draft tube 9 is arranged so that the entire liquid in the processing tank 1 is sufficiently circulated by the air lift effect. 15 is a valve provided in the sludge discharge pipe 7 (Yukiteru in Figure 1).
次に以上のように構成した装置の作用について説明する
。まず処理すべき廃水を貯−留槽２から送液ポンプ３に
より処３！ｌ！槽１へ所定時間かけて送給し、前サイク
ルにおいて適量残留している処理水と混合し嫌気的処理
を行う。即ちこの工程では脱窒素菌や通気ＢＯＤ酸化菌
群の支配下でＮ０３−Ｎ、ＮＯ２−Ｎ塩と石磯物炭素源
が反応して菌体の硝化呼吸により硝酸及び亜６［が窒素
ガスとなる。Next, the operation of the apparatus constructed as above will be explained. First, the wastewater to be treated is transferred from the storage tank 2 to the liquid feed pump 3. l! It is fed to the tank 1 over a predetermined period of time and mixed with the treated water remaining in an appropriate amount from the previous cycle to perform anaerobic treatment. That is, in this process, under the control of denitrifying bacteria and aeration BOD oxidizing bacteria, N03-N, NO2-N salts and rocky carbon sources react, and nitrate and nitrous oxide are converted into nitrogen gas through nitrifying respiration of bacterial cells. Become.
またＢＯＤ源である有機物はＢＯＤｉｌｔ化菌群により
低分子分解を受けＮＨ４” 、アルコール、有機酸にな
る。In addition, organic substances that are BOD sources undergo low molecular decomposition by the BODilt bacteria group to become NH4'', alcohol, and organic acids.
廃水が所定量供給されると供給を停止し、ブロワ１２を
作動して送気管１３を介して空気を７本のドラフトチュ
ーブ９のそれぞれ下端中空部９ａへ送給する。When a predetermined amount of wastewater is supplied, the supply is stopped, and the blower 12 is operated to supply air to the lower end hollow portions 9a of each of the seven draft tubes 9 via the air supply pipe 13.
送給された空気は空気泡となってドラフトチューブ９の
中空部を上昇し、これにともなってエアリフト効果によ
って廃水は矢印のようにドラフトチューブ９・の内壁面
に沿って上昇し、外壁面に沿つて下降する流れとなり、
一部はドラフトチューブ９の外壁の中途から中空部へ侵
入する流れも加わる。The supplied air turns into air bubbles and rises through the hollow part of the draft tube 9, and as a result of this air lift effect, the wastewater rises along the inner wall surface of the draft tube 9 as shown by the arrow, and reaches the outer wall surface. The flow becomes downward along the
A part of the flow also enters the hollow part from the middle of the outer wall of the draft tube 9.
これによりドラフトデユープ９内の微生物固定化担体８
と廃水が十分に接触する。そして廃水中の有機物の酸化
と窒素化合物の硝化が行われる。As a result, the microorganism immobilization carrier 8 in the draft duplex 9
and wastewater are in sufficient contact. Oxidation of organic matter and nitrification of nitrogen compounds in the wastewater then take place.
即ち、この工程にニトロソモナス、ニトロバクタ−など
の硝化菌が反応しＮＨ４＋がＮＯ３−になる。好気状態
における硝化菌の増殖速痕は通常のＢＯＤ酸化菌に比べ
１／７程麿であり、また菌体が微小であるため次の沈降
工程において沈降しにくく処理後の上澄液中に多数含有
され上澄液の排水とともに流出してしまう。本発明装置
においてはドラフトチューブの固定化担持体に好気性菌
および嫌気性菌が常に必要量確実に保持され、さらに菌
体と空気の接触効率が極めてよいので反応が速かである
。That is, nitrifying bacteria such as Nitrosomonas and Nitrobacter react with this process, and NH4+ becomes NO3-. The growth rate of nitrifying bacteria in aerobic conditions is about 1/7 slower than that of normal BOD oxidizing bacteria, and because the bacterial cells are minute, they are difficult to settle in the next sedimentation process and are not present in the supernatant after treatment. It is contained in large numbers and flows out with the draining of the supernatant liquid. In the apparatus of the present invention, the necessary amount of aerobic bacteria and anaerobic bacteria are always and reliably retained on the immobilized carrier of the draft tube, and furthermore, the reaction is rapid because the contact efficiency between the bacterial cells and air is extremely high.
所定時間経過すると空気の送給を停め、処理槽１を沈澱
槽として使用する。所定時間経過すると活性汚泥は処理
槽下部に沈降堆積するが、処理槽内は嫌気的状態となる
のでこのときにも嫌気的処理が行われる。After a predetermined period of time has elapsed, the supply of air is stopped and the treatment tank 1 is used as a settling tank. After a predetermined period of time has elapsed, the activated sludge settles and accumulates at the bottom of the treatment tank, but since the inside of the treatment tank is in an anaerobic state, anaerobic treatment is also performed at this time.
次に弁５を開いて上澄液を排出管６から所定水位まで取
出す。また活性汚泥の増殖がある場合には余剰の汚泥を
汚泥排出管７から引き抜く。Next, the valve 5 is opened and the supernatant liquid is taken out from the discharge pipe 6 to a predetermined water level. Further, if there is proliferation of activated sludge, excess sludge is pulled out from the sludge discharge pipe 7.
以上の工程が終了すると次サイクルの廃水の処理槽１へ
の供給が行われる。When the above steps are completed, wastewater is supplied to the treatment tank 1 for the next cycle.
このようにして処理された上澄液は後に実験で示すよう
に極めて良質であり、従来に比べ窒素やリン分の除去率
が高くしかも汚泥の増加分も少ない。As shown later in experiments, the supernatant liquid treated in this manner is of extremely high quality, with a higher removal rate of nitrogen and phosphorus than in the past, and less increase in sludge.
これは反応を行う活性度の高い好気性菌および嫌気性菌
がドラフトチューブ９内の微生物固定化担体８に常に必
要量確保され、反応が極めて効率よく行われているもの
と考えられる。This is considered to be because the required amount of highly active aerobic bacteria and anaerobic bacteria that carry out the reaction are always secured in the microorganism immobilization carrier 8 in the draft tube 9, and the reaction is carried out extremely efficiently.
ざらに担体として使用した高多孔性粒状泡ガラス中のカ
ルシュームイオンが廃水中のリンと反応して除去されこ
れにより脱リン効果を一層高めていると考えられる。It is thought that calcium ions in the highly porous granular foam glass used as a carrier are removed by reacting with phosphorus in the wastewater, thereby further enhancing the dephosphorization effect.
なお本発明に用いられるドラフトチューブは上記の形状
に限定されるものではなく金網を使用したり角筒にして
もよい。また微生物の担持体も高多孔性粒状泡ガラスで
なくセラミックスや合成樹脂を用いてもよい。Note that the draft tube used in the present invention is not limited to the above-mentioned shape, and may be made of a wire mesh or a rectangular tube. Further, the carrier for microorganisms may also be made of ceramics or synthetic resin instead of highly porous granular foam glass.
次に本発明の効果を明確にするため豆腐工場廃液を用い
て従来法と比較して行った実験例を示す。Next, in order to clarify the effects of the present invention, an experimental example was conducted using tofu factory waste liquid in comparison with a conventional method.
実験に用いた装置は第４図および第５図に示すごときも
ので第４図は本発明装置のモデルで、１６℃の恒温至に
設置され、処理槽２０は１４０ｃｍ径の円筒で、その中
に外径４５ｃｍ、内径２５ｃｍの多孔の２重管に４ｍｍ
径の高多孔性粒状泡ガラスからなる微生物固定化担体２
１を充填したドラフトチューブ２２を設け、その下方に
曝気時８００ｃｃ／分の空気を配管２３で送給せしめる
ようにした。The apparatus used in the experiment is as shown in Figures 4 and 5. Figure 4 is a model of the apparatus of the present invention, which is installed at a constant temperature of 16°C, and the processing tank 20 is a cylinder with a diameter of 140 cm. 4mm in a porous double tube with an outer diameter of 45cm and an inner diameter of 25cm.
Microorganism immobilization carrier 2 made of highly porous granular foam glass with a diameter of
A draft tube 22 filled with No. 1 was provided, and air at a rate of 800 cc/min was fed through a pipe 23 under the draft tube 22 during aeration.
又第５図は従来装置のモデルで処理槽３ｏは１ｏｏｃｍ
径の円筒でその外周に恒温槽３１を設は液温を２５℃に
保つようにし曝気時５０Ｑｃｃ／分の空気を配管３２で
送給せしめ、かつ撹拌器３３をモータ３４で作動せしめ
るようにした。Also, Figure 5 shows a model of the conventional equipment, and the treatment tank 3o is 1 oocm.
A constant temperature bath 31 was installed around the outer periphery of a cylinder with the same diameter as the liquid temperature to maintain the liquid temperature at 25° C. During aeration, 50 Qcc/min of air was fed through a pipe 32, and a stirrer 33 was operated by a motor 34. .
処理におけるサイクルタイムは２４時間を分割して行い
廃水の流入に１０時間、曝気を１０時間、次の沈降に２
時間、上澄液の排出を２時間とした。The cycle time for the treatment is divided into 24 hours, with 10 hours for wastewater inflow, 10 hours for aeration, and 2 hours for subsequent sedimentation.
The supernatant was drained for 2 hours.
実験結果は表１に示す通りで全有機性炭素量（ＴｏＣ）
の除去率は従来装置に比べ若干良（なる程邸であるが、
全窒素ｆｆ１（Ｔ、Ｎ）の除去率は極めてよくなり、ざ
らに全リン１ｇＩ（Ｔ、Ｐ）については従来装置ではあ
まり除去されないが本発明装置では９０％以上除去され
ている。The experimental results are shown in Table 1, and the total organic carbon content (ToC)
The removal rate is slightly better than that of conventional equipment (although this is true,
The removal rate of total nitrogen ff1 (T, N) is extremely good, and in general, 1 g of total phosphorus (T, P) is not removed much with the conventional device, but more than 90% is removed with the device of the present invention.
しかも本発明装置では各回毎に大きな変動がなく安定し
た結果を示している。Moreover, the apparatus of the present invention shows stable results without large fluctuations each time.
また本発明装置と従来装置における処理構内混合液浮遊
物質（ＭＬＳＳ）と１０分間活性汚泥ｍ（ＳＶｌｏ）は
夫々６６４４ｐｐｎ＋ 、２６ｍ／（１，６０３６ｐｐ
ｍ 、 ８３１１１１！／（＋であった。本発明装置で
は活性汚泥の増加は認められなかった。Furthermore, the treatment plant mixed liquid suspended solids (MLSS) and 10 minute activated sludge m (SVlo) in the present invention device and the conventional device were 6644 ppn+ and 26 m/(1,6036 ppn, respectively).
m, 831111! /(+) No increase in activated sludge was observed in the apparatus of the present invention.
以上の説明したように本発明装置は、処理槽内に微生物
固定化担体を充填したドラフトチューブを設けることに
より、少い動力で廃液を十分撹拌でき嫌気および好気性
菌体と十分接触し効率のよい反応が行なわれる。As explained above, by providing a draft tube filled with microbial immobilization carriers in the treatment tank, the device of the present invention can sufficiently agitate the waste liquid with a small amount of power and make sufficient contact with anaerobic and aerobic microbial cells to improve efficiency. A good reaction takes place.
また微生物固定化担体で菌体の活性度が高く維持される
とともに所定Ｔ確保されるので安定した処迎水が得られ
るばかりでなく、窒素やリン分の除去が顕微である。Furthermore, since the microorganism-immobilized carrier maintains the activity level of the microbial cells at a high level and ensures a predetermined T, not only stable treated water can be obtained, but also the removal of nitrogen and phosphorus components is minute.
第１図は本発明の装置の一実施例を示す系統図、第２図
は第１図のドラフトチューブの詳細図、第３図はドラフ
トチューブの配置を示す平面図である。第４図は本発明
装置の実験用モデルを示す図、第５図は従来装置の実験
用モデルを示す図である。
１．２０・・・処理槽 ２・・・貯留ＷＩ−３・・・
送液ポンプ ４・・・送液管 ８，２１・・・微生
物固定化担体 ９，２２・・・ドラフトチューブ給４
因
夢５０FIG. 1 is a system diagram showing one embodiment of the apparatus of the present invention, FIG. 2 is a detailed view of the draft tube in FIG. 1, and FIG. 3 is a plan view showing the arrangement of the draft tube. FIG. 4 is a diagram showing an experimental model of the device of the present invention, and FIG. 5 is a diagram showing an experimental model of the conventional device. 1.20... Processing tank 2... Storage WI-3...
Liquid feeding pump 4... Liquid feeding pipe 8, 21... Microorganism immobilization carrier 9, 22... Draft tube supply 4
Inmu 50
Claims (1)
の上澄液を排出する排出管を備え、処理槽内底部に曝気
処理時に空気を送り込む曝気装置を備えて曝気と汚泥の
沈降分離とを一つの処理槽で行う回分式活性汚泥廃水処
理装置において、前記処理槽内に微生物固定化担体を充
填したドラフトチューブを縦方向に配設したことを特徴
とする回分式活性汚泥廃水処理装置。 ２、処理槽内に微生物固定化担体を充填したドラフトチ
ューブを複数個配設した特許請求の範囲第１項記載の回
分式活性汚泥廃水処理装置。 ３、ドラフトチューブに充填される微生物固定化担体の
担持体として高多孔性粒状泡ガラスを用いたことを特徴
とする特許請求の範囲第１項記載の回分式活性汚泥廃水
処理装置。[Claims] 1. An aeration device that includes a liquid supply pipe for supplying wastewater to the treatment tank and a discharge pipe for discharging supernatant liquid after sedimentation treatment, and that sends air into the bottom of the treatment tank during aeration treatment. A batch type activated sludge wastewater treatment device that performs aeration and sedimentation and separation of sludge in one treatment tank, characterized in that a draft tube filled with a microorganism immobilization carrier is vertically arranged in the treatment tank. Batch-type activated sludge wastewater treatment equipment. 2. The batch activated sludge wastewater treatment apparatus according to claim 1, wherein a plurality of draft tubes filled with microorganism immobilization carriers are arranged in the treatment tank. 3. The batch activated sludge wastewater treatment apparatus according to claim 1, wherein highly porous granular foam glass is used as a carrier for the microorganism immobilization carrier filled in the draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6731287A JPH0783873B2 (en) | 1987-03-20 | 1987-03-20 | Batch type activated sludge wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6731287A JPH0783873B2 (en) | 1987-03-20 | 1987-03-20 | Batch type activated sludge wastewater treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63232891A true JPS63232891A (en) | 1988-09-28 |
| JPH0783873B2 JPH0783873B2 (en) | 1995-09-13 |
Family
ID=13341374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6731287A Expired - Fee Related JPH0783873B2 (en) | 1987-03-20 | 1987-03-20 | Batch type activated sludge wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0783873B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03119498U (en) * | 1990-03-15 | 1991-12-10 | ||
| KR100390010B1 (en) * | 2000-08-16 | 2003-07-04 | 한국건설기술연구원 | Apparatus for the purification of river pollution by tube type media attaching microorganism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100773701B1 (en) * | 2007-04-18 | 2007-11-05 | 최광회 | Advanced wastewater treatment using sbr fixed bio film on porous pipes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4837960A (en) * | 1971-09-21 | 1973-06-04 | ||
| JPS5840294U (en) * | 1981-09-04 | 1983-03-16 | 株式会社浄研 | Sewage purification equipment |
| JPS60256380A (en) * | 1984-03-23 | 1985-12-18 | フオルシユングスツエントルム・ユーリツヒ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Immobilization of bacteria by porous inorganic carrier for growth of bacteria and porous inorganic carrier suitable therefor |
-
1987
- 1987-03-20 JP JP6731287A patent/JPH0783873B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4837960A (en) * | 1971-09-21 | 1973-06-04 | ||
| JPS5840294U (en) * | 1981-09-04 | 1983-03-16 | 株式会社浄研 | Sewage purification equipment |
| JPS60256380A (en) * | 1984-03-23 | 1985-12-18 | フオルシユングスツエントルム・ユーリツヒ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Immobilization of bacteria by porous inorganic carrier for growth of bacteria and porous inorganic carrier suitable therefor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03119498U (en) * | 1990-03-15 | 1991-12-10 | ||
| KR100390010B1 (en) * | 2000-08-16 | 2003-07-04 | 한국건설기술연구원 | Apparatus for the purification of river pollution by tube type media attaching microorganism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0783873B2 (en) | 1995-09-13 |
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