JPH07256289A - Life sewage disposal device - Google Patents
Life sewage disposal deviceInfo
- Publication number
- JPH07256289A JPH07256289A JP6746395A JP6746395A JPH07256289A JP H07256289 A JPH07256289 A JP H07256289A JP 6746395 A JP6746395 A JP 6746395A JP 6746395 A JP6746395 A JP 6746395A JP H07256289 A JPH07256289 A JP H07256289A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- sewage treatment
- treatment apparatus
- contact aeration
- domestic sewage
- 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.)
- Pending
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一般家庭から排出され
る糞尿及び生活雑排水を複合的に処理する生活汚水処理
装置に関するものである。更に具体的には、本発明は一
般家庭から排出される汚水中の有機物質を嫌気性及び好
気性微生物により分解処理し、未処理の有機物質を濾過
分解室で最終処理する生活汚水の嫌気性接触曝気式処理
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic sewage treatment apparatus for treating manure and household wastewater discharged from general households in a combined manner. More specifically, the present invention decomposes organic substances in wastewater discharged from general households by anaerobic and aerobic microorganisms, and anaerobic domestic wastewater for final treatment of untreated organic substances in a filtration decomposition chamber. The present invention relates to a contact aeration type processing device.
【０００２】より具体的には、本発明は一般家庭から排
出される下水中の有機物質を嫌気性微生物により分解処
理し、未処理の有機物質を濾過分解室で最終処理する生
活汚水の嫌気性接触曝気式処理装置に関する。More specifically, the present invention decomposes organic substances in sewage discharged from general households by anaerobic microorganisms and anaerobically disposes of domestic wastewater for final treatment of untreated organic substances in a filter decomposition chamber. The present invention relates to a contact aeration type processing device.
【０００３】[0003]
【従来の技術】現在大単位の終末処理施設及び大単位の
工業団地内における廃下水処理システム等の投資型処理
に対する施設投資は徐々に増加しているが、下水処理施
設がない地域から排出される生活下水は排出量が非常に
多いため（大韓民国の場合、全国の家庭下水排出量１
０，０００kl／日中２８％のみが処理されている）、汚
染源として大きな問題点となっていると指摘されてい
る。これによって河川汚染は勿論、地域住民の生活環境
改善にも差し支えが生じている。特に、下水道及び下水
処理施設が微々たる地方の中小都市及び農漁村の生活衛
生は悪化しており、農業用水として用いられる主要貯水
池の水質汚染により用水としての利用価値を喪失して農
業生産性が低下している実情である。また、大都市の下
水処理施設においても、河川へ流入される家庭下水は処
理場に入る前に生活環境を深刻に汚染している実情であ
る。2. Description of the Related Art Currently, facility investment for investment-type treatment such as large-scale terminal treatment facilities and large-scale industrial estate waste sewage treatment systems is gradually increasing. The amount of domestic sewage produced is very large (in the case of Korea, domestic sewage emission 1
It is pointed out that this is a major problem as a pollution source. This not only causes river pollution but also improves the living environment of local residents. In particular, the living hygiene of small and medium-sized cities and agricultural and fishing villages, where sewerage and sewage treatment facilities are subtle, is deteriorating. It is a fact that is decreasing. Also, in the sewage treatment facilities of large cities, domestic sewage flowing into rivers is a serious pollution of the living environment before entering the treatment plant.
【０００４】一般的に、家庭下水を処理する最も合理的
な方法は、家庭の排出源から発生した下水を密閉された
下水管渠により下水処理場へ流入させて完璧に処理する
ことであるが、このためには完璧な下水管渠の普及がそ
の前提になる。しかし、管渠の普及率は微々たるもので
あり、大韓民国の場合、管渠普及率は３７％に過ぎない
実情にある。普及された管渠の大部分である９４．５％
が雨水用管渠であって、汚水管渠は６％にも及ばない
１，８７７kmに過ぎない。都市膨張による建物の密集化
と都市交通問題等により管渠の設置費用が漸増している
ので、管渠の完備は遼遠な実情である。[0004] Generally, the most rational method for treating domestic sewage is to completely treat sewage generated from domestic sources by flowing it into a sewage treatment plant through a closed sewer pipe. For this, the premise of perfect sewer drainage is a prerequisite. However, the penetration rate of the canal is insignificant, and in the case of the Republic of Korea, the canal penetration rate is only 37%. 94.5%, which is the majority of widespread pipes
Is a rainwater sewer, and the sewage sewer is only 1,877 km, which is less than 6%. Since the cost of installing the drainage pipe is gradually increasing due to the congestion of buildings due to the expansion of the city and the problems of urban traffic, the completeness of the drainage pipe is far from reality.
【０００５】尚、米国とヨーロッパの場合には、家庭か
ら排出される糞尿及び家庭の雑排水は下水管渠を通じて
下水終末処理場へ直接流入、処理されるので問題は少な
いが、下水管渠の普及が微々たる韓国、日本、台湾等の
アジア国家では、糞尿を浄化槽で処理している実情であ
る。一般的に浄化槽又は汚水処理装置は、１次沈澱槽、
曝気槽、２次沈澱槽で構成され、１次沈澱槽で汚水の嫌
気性分解が一部行われ、曝気槽で好気性分解が行われ
る。しかし、かかる従来の浄化槽及び汚水処理装置は、
曝気槽と沈澱槽を経由した処理水が消毒を経て放流さ
れ、これによって曝気槽で未処理の有機物質もしくは沈
澱されない微細な微生物は、そのまま流出されるので流
出水の水質は不良である。日本の場合、３０時間の滞留
時間を有する嫌気性濾床と滞留時間７．５時間の接触曝
気室を経た浄化槽で９０％程度のＢＯＤ除去効率を得る
ことができることが知られている。また、家庭用下水処
理装置を経た放流水の有機物質の負荷率は９０％以上除
去される反面、単独浄化槽の場合にはわずか１６％のみ
が除去されると報告されている（稲森悠平、松重一夫
「嫌気性条件を組み込んだ小規模合併処理浄化槽におけ
る脱窒・脱リン」、用水と廃水、Vol. 10 、No.4、1988
及び「家庭用小型合併処理浄化槽」、フジクリーンCATA
LOG、昭和63年、参照）。In the United States and Europe, manure discharged from households and domestic wastewater are directly introduced into the final sewage treatment plant through the sewers and treated, but there are few problems. In South Asian countries such as South Korea, Japan, and Taiwan, where dissemination is insignificant, manure is treated in septic tanks. Generally, a septic tank or sewage treatment system is a primary sedimentation tank,
It is composed of an aeration tank and a secondary precipitation tank. Part of the primary precipitation tank is used for anaerobic decomposition of sewage, and the aeration tank is used for aerobic decomposition. However, such a conventional septic tank and sewage treatment device,
The treated water that has passed through the aeration tank and the sedimentation tank is discharged after being disinfected, and as a result, untreated organic substances or fine microorganisms that are not precipitated in the aeration tank are discharged as they are, so the water quality of the outflow water is poor. In the case of Japan, it is known that a BOD removal efficiency of about 90% can be obtained in a septic tank having an anaerobic filter bed having a residence time of 30 hours and a contact aeration chamber having a residence time of 7.5 hours. In addition, it is reported that the load factor of organic substances of the discharged water from the domestic sewage treatment equipment is removed by 90% or more, but only 16% is removed by the single septic tank (Yuhei Inamori, Matsushige). Kazuo “Denitrification / Phosphorus Removal in Small Scale Combined Treatment Septic Tanks with Anaerobic Conditions”, Water and Wastewater, Vol. 10, No. 4, 1988
And "Small household combined septic tank", Fuji Clean CATA
See LOG, 1988).
【０００６】[0006]
【発明が解決しようとする課題】従って、水質汚染を源
泉的に防止するためには、糞尿と生活雑排水を複合的に
処理する生活汚水処理装置に対する技術開発が絶対的に
必要である。本発明の発明者らはこのような理由によ
り、家庭から排出される生活下水の完全な処理のため
に、有機物質と栄養素を同時に除去することができる生
活汚水処理装置を開発することにより、本発明を完成し
た。Therefore, in order to prevent water pollution from the source, it is absolutely necessary to develop a technology for a domestic sewage treatment apparatus that treats manure and household wastewater in a combined manner. For these reasons, the inventors of the present invention have developed a domestic wastewater treatment device capable of simultaneously removing organic substances and nutrients for the complete treatment of domestic wastewater discharged from homes. Completed the invention.
【０００７】本発明の目的は、家庭下水に含まれている
有機物質を嫌気性微生物と好気性微生物の増殖及び分解
作用によって除去し、栄養素中窒素成分と燐成分を窒酸
化と脱窒反応、脱燐反応等を利用して除去することがで
きる生活汚水の処理装置を提供する。The object of the present invention is to remove organic substances contained in domestic sewage by the growth and decomposition action of anaerobic and aerobic microorganisms, and to perform nitrogen oxidation and denitrification reactions on nitrogen and phosphorus components in nutrients. A treatment device for domestic wastewater that can be removed by utilizing a dephosphorization reaction or the like.
【０００８】本発明の目的は、更に最終沈澱槽の次に濾
過分解室を置いて、充満された濾材（media)によって残
留有機物質が分解され、微細微生物は沈澱除去されて、
安定した流出水が排出できる生活汚水処理装置を提供す
るものである。The object of the present invention is to further arrange a filtration decomposition chamber next to the final settling tank, in which residual organic substances are decomposed by the filled media and fine microorganisms are removed by precipitation.
It is intended to provide a domestic sewage treatment device capable of discharging stable outflow water.
【０００９】[0009]
【課題を解決するための手段】かかる本発明の目的は、
流入される被処理物を沈澱及び嫌気性分解する嫌気性槽
と、嫌気性槽を経由した被処理物に散気管を通じて継続
的に空気を供給して、その内部に設置された接触濾材
（Fixed-film）に付着した好気性微生物の活性を高めて
有機物質の分解を促進する接触曝気室と、該接触曝気室
を経由した被処理物中のスラッジを沈澱させてその一部
を接触曝気室へ搬送し、他の一部はスラッジ搬送装置に
より嫌気性槽へ搬送する最終沈澱室と、該最終沈澱室を
経由した被処理物中の未処理有機物質を濾材によって濾
過及び分解除去する濾過分解室、より構成される本発明
の装置によって達成される。The object of the present invention is as follows.
An anaerobic tank that precipitates and anaerobically decomposes the inflowing processed material, and continuously supplies air to the processed material that has passed through the anaerobic tank through an air diffuser, and a contact filter (Fixed filter) installed inside it. contact aeration chamber that enhances the activity of aerobic microorganisms attached to the film and accelerates the decomposition of organic substances, and sludge in the material to be treated that has passed through the contact aeration chamber is precipitated and a part of the contact aeration chamber To the anaerobic tank by a sludge carrier, and the other part of the filter is used to filter and decompose and remove untreated organic substances in the material to be processed through the final precipitation chamber with a filter medium. This is achieved by the device of the present invention, which comprises a chamber.
【００１０】以下、本発明を添付の図面により一層詳し
く説明する。Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
【００１１】図１は本発明による生活汚水処理装置の平
面図を示し、図２は本発明による生活汚水処理装置の正
面図を示したものである。図１と図２に示されている通
り、本発明の生活汚水処理装置１は嫌気性槽２、３、接
触曝気室４、最終沈澱室５及び濾過分解室６より構成さ
れている。本発明においては、嫌気性槽２、３は第１嫌
気性槽２と第２嫌気性槽３より構成される。第１嫌気性
槽２では生活汚水に含まれている狭雑物と沈澱可能な固
形物質の沈澱が行われ、同時に、嫌気性微生物による有
機物質の嫌気性分解作用も行われる。被処理物の第１嫌
気性槽２への流入は流入管７を通じて行われる。前記流
入管７を経由した被処理物は、第１嫌気性槽で沈澱した
浮遊物が流入速度によって再浮上することを防止するた
めに、後述する図４に示されている、断面が「コ」字形
の漏斗状の流入移送台８を介して流入される。また、前
記第１嫌気性槽２ではスラッジ搬送管１７により後述す
る最終沈澱室５から搬送されたスラッジの脱窒反応が行
われる。脱窒反応とは、微生物が無酸素条件の下では溶
存酸素が不足しているため、溶存酸素の代わりにＮＯ2
もしくはＮＯ3 を電子受容体で有機炭素を酸化させなが
らエネルギーを提供し、細胞合成された窒素をＮ2 ガス
に還元して大気中に放出して水系内から除去する過程で
ある。その反応式は次の（１）の通りである。FIG. 1 is a plan view of the domestic sewage treatment apparatus according to the present invention, and FIG. 2 is a front view of the domestic sewage treatment apparatus according to the present invention. As shown in FIGS. 1 and 2, the domestic sewage treatment apparatus 1 of the present invention comprises anaerobic tanks 2, 3, a contact aeration chamber 4, a final precipitation chamber 5 and a filtration decomposition chamber 6. In the present invention, the anaerobic tanks 2 and 3 are composed of the first anaerobic tank 2 and the second anaerobic tank 3. In the first anaerobic tank 2, contaminants contained in domestic wastewater and solid substances that can be precipitated are precipitated, and at the same time, anaerobic decomposition of organic substances by anaerobic microorganisms is also performed. The inflow of the material to be processed into the first anaerobic tank 2 is performed through the inflow pipe 7. In order to prevent the suspended solids precipitated in the first anaerobic tank from re-floating due to the inflow velocity, the cross-section of the object to be processed via the inflow pipe 7 is shown in FIG. It is flowed in through the “” shaped funnel-shaped inflow transfer table 8. Further, in the first anaerobic tank 2, a denitrification reaction of sludge transported from the final settling chamber 5 described later is performed by the sludge transport pipe 17. The denitrification reaction is NO 2 in place of dissolved oxygen because microorganisms lack dissolved oxygen under anoxic conditions.
Alternatively, it is a process in which NO 3 is provided with energy while oxidizing organic carbon with an electron acceptor to reduce cell-synthesized nitrogen into N 2 gas and release it into the atmosphere to remove it from the water system. The reaction formula is as follows (1).
【００１２】[0012]
【数１】 [Equation 1]
【００１３】第１嫌気性槽２を経由した被処理物は、嫌
気性槽分離壁１０の上部に設置された移送管９を経由し
て嫌気槽流入管１１を通じて第２嫌気性槽３へ流入され
る。第２嫌気性槽３へ流入された被処理物は、ここで再
び嫌気性分解及び脱窒反応が同時に行われる。前記第１
嫌気性槽２と前記第２嫌気性槽３との容積比を２：１に
するのが経済的な側面で望ましい。第２嫌気性槽３を経
由した被処理物は、曝気室分離壁１３の上部に設置され
た曝気室移送管１２を通じて接触曝気室４へ移送され
る。移送管９、１２の構造としては、嫌気性槽２、３の
上部に形成するスカム（scum）の流入と沈澱した沈澱物
の流入を防ぐことができるように、水深の１／４に位置
する半円形管の構造が望ましい。嫌気性槽２、３におけ
る被処理物の滞留時間は、脱窒反応と嫌気性消化反応を
考慮して２〜５日にするのが望ましい。The object to be processed that has passed through the first anaerobic tank 2 flows into the second anaerobic tank 3 through the anaerobic tank inflow pipe 11 via the transfer pipe 9 installed above the anaerobic tank separation wall 10. To be done. The anaerobic decomposition and denitrification reaction of the object to be treated, which has flowed into the second anaerobic tank 3, are simultaneously performed here. The first
It is desirable from the economical aspect that the volume ratio of the anaerobic tank 2 to the second anaerobic tank 3 is 2: 1. The object to be processed that has passed through the second anaerobic tank 3 is transferred to the contact aeration chamber 4 through the aeration chamber transfer pipe 12 installed above the aeration chamber separation wall 13. The structure of the transfer pipes 9 and 12 is located at 1/4 of the water depth so as to prevent the inflow of scum formed in the upper part of the anaerobic tanks 2 and 3 and the inflow of the precipitated sediment. A semi-circular tube structure is preferred. The residence time of the object to be treated in the anaerobic tanks 2 and 3 is preferably 2 to 5 days in consideration of the denitrification reaction and the anaerobic digestion reaction.
【００１４】接触曝気室４へ流入された被処理物は、送
風機２２から供給される空気によって好気性状態を維持
し、接触曝気室４に設置された接触濾材１５の表面に付
着した好気性微生物によって被処理物に含まれている有
機物質が分解され、窒酸化反応が行われる。接触曝気室
４での窒酸化反応と嫌気性槽２、３での脱窒反応の目的
は、処理廃水に含有されている窒素成分を除去するため
である。処理水に窒素成分が含有されていると、湖水等
で鳥類の過剰繁殖をもたらし、富栄養化されるため、処
理廃水内の窒素成分を除去する必要がある。接触曝気室
４においての窒酸化反応式は次式（２）と（３）であ
る。溶存酸素が存在している接触曝気室４で行われる該
反応は、窒酸化微生物により無機性窒素であるアンモニ
アが亜窒酸性窒素（ＮＯ2 −Ｎ）に酸化され、更に窒酸
性窒素（ＮＯ3 −Ｎ）に酸化される作用である。The object to be treated that has flowed into the contact aeration chamber 4 is maintained aerobic by the air supplied from the blower 22, and aerobic microorganisms attached to the surface of the contact filter medium 15 installed in the contact aeration chamber 4 As a result, the organic substances contained in the material to be treated are decomposed, and a nitroxidation reaction is performed. The purpose of the nitrification oxidation reaction in the contact aeration chamber 4 and the denitrification reaction in the anaerobic tanks 2 and 3 is to remove the nitrogen component contained in the treated wastewater. If the treated water contains a nitrogen component, it causes over-breeding of birds in the lake water and the like, resulting in eutrophication. Therefore, it is necessary to remove the nitrogen component in the treated wastewater. Nitrogen oxidation reaction equations in the contact aeration chamber 4 are the following equations (2) and (3). In the reaction carried out in the contact aeration chamber 4 in which dissolved oxygen is present, ammonia, which is an inorganic nitrogen, is oxidized to nitrous acid nitrogen (NO 2 —N) by a nitriding oxidative microorganism, and further nitrogen oxynitride (NO 3 -N).
【００１５】[0015]
【数２】 [Equation 2]
【００１６】接触曝気室４へ供給する空気は、接触曝気
室分離壁１３と平行に接触曝気室４に設置された散気管
１４より微細気泡になって伝達される。供給された微細
気泡は、酸素伝達作用との相乗作用によって接触曝気室
４内の流れを形成し、完全な混合状態を維持することに
なる。また、長期曝気法では、接触曝気室４における滞
留時間が長いためスラッジ生産量を最小化して運転する
ことができる。接触曝気室４における被処理物の滞留時
間は、微生物の増殖のために最小０．５〜２日維持する
のが適当である。望ましい接触濾材１５の形状は微生物
の付着が容易であり、接触曝気室４の流れに影響を及ぼ
さない構造で、図３に示されているような板状構造にし
て、散気管１４と直角に配置するのが望ましい。接触濾
材は、ポリウレタンを原料とした厚さ２〜３cmの柔軟性
を有する多孔性板状濾材が、微生物付着能力と永久性及
び経済性の面で非常に良い効果を表す。The air supplied to the contact aeration chamber 4 is transmitted in the form of fine bubbles from the air diffuser 14 installed in the contact aeration chamber 4 in parallel with the contact aeration chamber separation wall 13. The supplied fine bubbles form a flow in the contact aeration chamber 4 by a synergistic effect with the oxygen transfer action, and maintain a perfect mixed state. Further, in the long-term aeration method, since the residence time in the contact aeration chamber 4 is long, the sludge production amount can be minimized for operation. The residence time of the material to be treated in the contact aeration chamber 4 is appropriately maintained at a minimum of 0.5 to 2 days for the growth of microorganisms. The desirable shape of the contact filter medium 15 is such that microorganisms are easily attached to the contact filter medium 15 and does not affect the flow of the contact aeration chamber 4. The plate has a plate-like structure as shown in FIG. It is desirable to place it. As the contact filter medium, a flexible porous filter medium having a thickness of 2 to 3 cm, which is made of polyurethane as a raw material, exhibits a very good effect in terms of microorganism attachment ability, durability and economy.
【００１７】接触曝気室４に流入された被処理物は、含
有されている有機物質が第１及び第２嫌気性槽２、３で
一部除去され、有機物の濃度が低くなった状態であるの
で、有機物質の負荷量が減少される。また、移送管１２
の接触曝気室４への流入部の高さは、接触曝気室４の水
深より高くしなければならない。その理由は、接触曝気
室４での曝気装置による水深の動揺と上昇によって、接
触曝気室４の微生物が第２嫌気性槽３へ逆流することを
防止するためである。The substance to be treated which has flowed into the contact aeration chamber 4 is in a state where the organic substances contained therein are partially removed in the first and second anaerobic tanks 2 and 3 so that the concentration of the organic substances becomes low. Therefore, the load of organic substances is reduced. In addition, the transfer pipe 12
The height of the inflow part of the contact aeration chamber 4 must be higher than the water depth of the contact aeration chamber 4. The reason is to prevent the microorganisms in the contact aeration chamber 4 from flowing back to the second anaerobic tank 3 due to the fluctuation and rise of the water depth by the aeration device in the contact aeration chamber 4.
【００１８】前記接触曝気室４を経由した被処理物は、
最終沈澱室分離壁１６の下部にある開口部を通じて最終
沈澱室５へ移送される。最終沈澱室５の下部は、固形物
質及び沈澱した微生物の曝気室４への搬送を円滑にする
ために６０°の傾斜を設けるのが良い。また、接触曝気
室４に設置された接触濾材１５の微生物は、時間が経過
すると増殖による脱離現象が生じ、脱離した微生物は最
終沈澱室５へ移送される。移送された脱離微生物と沈澱
されたスラッジは、スラッジ搬送装置１７、１８により
第１嫌気性槽２へ搬送される。図５に示すように、スラ
ッジ搬送装置１７、１８による搬送は、空気注入管１８
を通じて供給される空気の上昇作用によるもので、空気
が上昇すればスラッジがスラッジ搬送管１７中を垂直移
動する。空気注入管１８の直径はスラッジ搬送管１７の
直径の１／５〜１／１０倍であり、スラッジ搬送管１７
の底部は最終沈澱室分離壁１６の底部と高さが一致し、
空気注入管１８の下端注入口はスラッジ搬送管１７の上
部からその長さの３／４程度に位置するのが望ましい。The object to be processed which has passed through the contact aeration chamber 4 is
It is transferred to the final precipitation chamber 5 through an opening at the bottom of the final precipitation chamber separation wall 16. The lower part of the final settling chamber 5 is preferably provided with an inclination of 60 ° in order to facilitate the transport of solid substances and precipitated microorganisms to the aeration chamber 4. Further, the microorganisms of the contact filter medium 15 installed in the contact aeration chamber 4 undergo a desorption phenomenon due to growth over time, and the desorbed microorganisms are transferred to the final precipitation chamber 5. The transferred desorbed microorganisms and the sludge precipitated are transferred to the first anaerobic tank 2 by the sludge transfer devices 17 and 18. As shown in FIG. 5, the sludge transfer devices 17 and 18 are used for the air injection pipe 18
When the air rises, the sludge moves vertically in the sludge transfer pipe 17. The diameter of the air injection pipe 18 is 1/5 to 1/10 times the diameter of the sludge transfer pipe 17,
The bottom of the final settling chamber separating wall 16 is flush with the bottom,
It is desirable that the lower end inlet of the air injection pipe 18 is located approximately 3/4 of its length from the upper part of the sludge transfer pipe 17.
【００１９】スラッジ搬送装置１７、１８は、接触曝気
室４内の接触濾材１５から脱離された微生物フロック
（floc）等の剰余微生物を搬送するので、汚染分解好気
性微生物量を簡便に調節することができる。スラッジ搬
送装置１７、１８は接触曝気室４に設置することがで
き、最終沈澱室５の下部に設置すればスラッジをより効
率的に搬送し、接触曝気室４内の掃除を行わずに、嫌気
性槽２、３で嫌気性消化させてスラッジ減量後に掃除を
行うことができる長所を有している。第１嫌気性槽２へ
移送するスラッジは、無酸素状態で流入される被処理物
の有機物質を餌とする脱窒化微生物の脱窒反応により、
前記の式（１）で示した通り窒素ガスに変化させて大気
中に放出される。従って、前記スラッジ搬送装置１７、
１８は、接触曝気室４の接触濾材１５から脱離される微
生物を効果的に搬送して水質悪化を防止し、脱窒反応に
より栄養素の除去にも多く寄与する。Since the sludge transfer devices 17 and 18 transfer surplus microorganisms such as microbial flocs desorbed from the contact filter medium 15 in the contact aeration chamber 4, the amount of pollutant-decomposing aerobic microorganisms can be easily adjusted. be able to. The sludge transfer devices 17, 18 can be installed in the contact aeration chamber 4, and if installed in the lower part of the final settling chamber 5, the sludge can be transferred more efficiently and the inside of the contact aeration chamber 4 can be cleaned without anaerobic It has the advantage that it can be cleaned after anaerobic digestion in the sex tanks 2 and 3 to reduce the amount of sludge. The sludge transferred to the first anaerobic tank 2 is subjected to a denitrification reaction of a denitrifying microorganism that feeds on the organic substance of the substance to be treated, which is introduced in anoxic state,
As shown in the above formula (1), it is converted into nitrogen gas and released into the atmosphere. Therefore, the sludge transfer device 17,
18 effectively conveys microorganisms desorbed from the contact filter medium 15 in the contact aeration chamber 4 to prevent deterioration of water quality, and contributes much to the removal of nutrients by the denitrification reaction.
【００２０】最終沈澱室５を経由した被処理物は、濾過
分解室流入管１９を通じて濾過分解室６へ流入される。
濾過分解室６に流入された被処理物は、濾材で充満した
濾過分解室６を経るとき沈澱及び濾過が行われるが、こ
の時処理されない有機物質は、濾材の表面に付着した微
生物によって分解除去される。前記濾過分解室６におけ
る流れにより濾材に流動があれば濾材の微生物付着が困
難になり、また濾材が一方にかたよることがあるので、
これを防止するために中間に濾材流動防止板２０を設置
した。前記濾過分解室６を経た被処理物は流出管２１を
通じて最終放流される。The material to be treated which has passed through the final precipitation chamber 5 flows into the filtration decomposition chamber 6 through the filtration decomposition chamber inflow pipe 19.
The object to be treated that has flowed into the filter decomposition chamber 6 is precipitated and filtered as it passes through the filter decomposition chamber 6 filled with a filter medium, but the organic substances that are not treated at this time are decomposed and removed by microorganisms adhering to the surface of the filter medium. To be done. If there is a flow in the filter medium due to the flow in the filter decomposition chamber 6, it becomes difficult for microorganisms to adhere to the filter medium, and the filter medium may be hardened on one side.
In order to prevent this, a filter medium flow prevention plate 20 is installed in the middle. The object to be processed which has passed through the filter decomposition chamber 6 is finally discharged through the outflow pipe 21.
【００２１】嫌気性槽２、３から発生する悪臭と窒素ガ
ス、また接触曝気室４及び最終沈澱室５から発生する悪
臭は、蓋２３に設置されている排気口２４を通じて外部
に排出され、そのために本発明の浄化槽１の状態及び接
触曝気室４の微生物状態を常時点検できるマンホール２
５が蓋２３に設けられている。The offensive odor and nitrogen gas generated from the anaerobic tanks 2 and 3, and the offensive odor generated from the contact aeration chamber 4 and the final precipitation chamber 5 are discharged to the outside through the exhaust port 24 installed in the lid 23. A manhole 2 for constantly checking the condition of the septic tank 1 and the microbial condition of the contact aeration chamber 4 of the present invention
5 is provided on the lid 23.
【００２２】[0022]
【発明の効果】以上の如く本発明による生活汚水処理装
置は、第１に現在家庭から排出される生活下水中糞尿の
みを浄化処理して、河川に流入する有機物質の負荷率の
高い単独浄化槽とは異なり、糞尿だけでなく生活雑排水
まで処理が可能であり、第２に接触曝気室の中にポリウ
レタン材質の板状接触濾材を設置することにより微生物
の付着が優れており、接触曝気室を一定水準の微生物濃
度に維持することができるので、過負荷による抵抗力の
増大と有機物質除去効率の増大が優れており、第３に最
終沈澱室の下部に設けられたスラッジ搬送装置は、接触
濾材から脱離されたスラッジ・フロックを嫌気性槽へ搬
送して処理することができ、第４に最終沈澱室を経由し
た被処理物を濾過分解室で沈澱及び濾過処理して流出さ
せるので流出水の水質が向上し、環境汚染の減少にも多
く寄与する長所がある。また、嫌気性槽で有機物質と栄
養素を同時に除去する効果もある。As described above, the domestic sewage treatment apparatus according to the present invention is, firstly, a single septic tank having a high load factor of the organic substances flowing into the river, which purifies only the excrement of domestic wastewater currently discharged from the home. Unlike the manure, it is possible to treat not only wastewater but also household wastewater. Secondly, by installing a plate-shaped contact filter medium made of polyurethane in the contact aeration chamber, the adhesion of microorganisms is excellent. Since it is possible to maintain the microorganism concentration at a constant level, the increase in resistance due to overload and the increase in organic substance removal efficiency are excellent. Thirdly, the sludge transfer device provided in the lower part of the final precipitation chamber is Sludge and flocs desorbed from the contact filter medium can be transported to an anaerobic tank for treatment. Fourthly, the object to be treated that has passed through the final precipitation chamber is precipitated and filtered in the filtration decomposition chamber and discharged. Runoff water Quality is improved, there are many contributing advantages to reduction of environmental pollution. It also has the effect of simultaneously removing organic substances and nutrients in the anaerobic tank.
【００２３】[0023]
【実施例】上記に説明した本発明による構造を有する生
活汚水処理装置を実験室で製作して、１９９３年１月か
ら１９９３年１１月まで運転した結果を表１に示した。
表１に記載されている値は全体実験期間の平均値であ
り、流入水はアパートの汚水浄化槽貯流槽から直接採取
して５人家族を基準として原単位に算定し、１／１００
倍に縮小製作して注入した。流出水は一週間に１〜２回
採取して標準方式に準じて分析した。EXAMPLES Table 1 shows the results of operation of the domestic sewage treatment apparatus having the above-described structure according to the present invention manufactured in a laboratory and operated from January 1993 to November 1993.
The values shown in Table 1 are the average values for the entire experiment period, and the inflow water is directly collected from the wastewater purification tank storage tank of the apartment and calculated as the basic unit based on a family of 5 people, 1/100
I made it twice as small and injected it. The runoff water was collected once or twice a week and analyzed according to the standard method.
【００２４】[0024]
【表１】 [Table 1]
【００２５】以上の実験室での実験結果から、本発明に
よる生活汚水処理装置の平均ＢＯＤ除去効率は９６％以
上、ＣＯＤ除去効率は９０％以上であって、栄養素であ
るＴＫＮとＴ−Ｐの除去効率は、各々８７％及び４３％
と非常に高く、流出水のＢＯＤは１０mg/lを超過しない
非常に満足な結果を得た。From the above experimental results in the laboratory, the domestic sewage treatment apparatus according to the present invention has an average BOD removal efficiency of 96% or more and a COD removal efficiency of 90% or more, and the nutrients TKN and TP are Removal efficiency is 87% and 43% respectively
It was very high, and the BOD of the effluent did not exceed 10 mg / l, and very satisfactory results were obtained.
【図１】本発明による生活汚水処理装置の平面図。FIG. 1 is a plan view of a domestic sewage treatment apparatus according to the present invention.
【図２】本発明による生活汚水処理装置の正面図。FIG. 2 is a front view of the domestic sewage treatment apparatus according to the present invention.
【図３】本発明による生活汚水処理装置の接触曝気室に
設置された接触性濾材の斜視図。FIG. 3 is a perspective view of a contact filter medium installed in a contact aeration chamber of the domestic sewage treatment apparatus according to the present invention.
【図４】本発明による生活汚水処理装置の第１嫌気性槽
に付着される流入移送台の斜視図。FIG. 4 is a perspective view of an inflow transfer table attached to a first anaerobic tank of the domestic sewage treatment apparatus according to the present invention.
【図５】最終沈澱室に沈澱されたスラッジと脱窒反応の
ためのスラッジ搬送装置において、空気を用いたスラッ
ジ搬送装置の斜視図。FIG. 5 is a perspective view of a sludge transfer device using air in the sludge transfer device for denitrification reaction with the sludge settled in the final settling chamber.
１：生活汚水の嫌気性接触曝気式処理装置 ２：第１嫌気性槽 ３：第２嫌気性槽 ４：接触曝気室 ５：最終沈澱室 ６：濾過分解室 ８：流入移送台 １３：曝気室分離壁 １４：散気管 １５：接触濾材 １６：最終沈澱室分離壁 １７：スラッジ搬送管 １８：空気注入管 ２０：濾材流動防止板 1: Anaerobic contact aeration type treatment equipment for domestic sewage 2: First anaerobic tank 3: Second anaerobic tank 4: Contact aeration chamber 5: Final sedimentation chamber 6: Filtration and decomposition chamber 8: Inflow transfer table 13: Aeration chamber Separation wall 14: Air diffusion pipe 15: Contact filter medium 16: Final precipitation chamber separation wall 17: Sludge transfer pipe 18: Air injection pipe 20: Filter medium flow prevention plate
Claims (12)
解及び脱窒させる嫌気性槽と、嫌気性槽を経由した被処
理物に空気を供給して好気性微生物の活性を高めて有機
物質の分解を促進する接触曝気室と、接触曝気室を経由
した被処理物中のスラッジを沈澱させてその一部を接触
曝気室へ搬送し、他の一部はスラッジ搬送装置により嫌
気性槽へ搬送する最終沈澱室と、最終沈澱室を経由した
被処理物中の未処理有機物質を濾材により濾過及び分解
除去する濾過分解室とより構成されることを特徴とす
る、生活汚水処理装置。1. An anaerobic tank for precipitating, anaerobically decomposing and denitrifying an inflowing object, and supplying air to the object to be processed which has passed through the anaerobic tank to enhance the activity of aerobic microorganisms. A contact aeration chamber that promotes the decomposition of substances, and sludge in the material to be treated that has passed through the contact aeration chamber is precipitated and part of it is transferred to the contact aeration chamber. An apparatus for treating domestic wastewater, comprising: a final settling chamber that is conveyed to a final settling chamber; and a filtration decomposition chamber that filters and decomposes and removes untreated organic substances in a material to be processed that has passed through the final precipitation chamber.
主に行われる第１嫌気性槽と、第１嫌気性槽から流入さ
れた被処理物の嫌気性分解及び脱窒反応が主に行われる
第２嫌気性槽とより構成されることを特徴とする、請求
項１に記載の生活汚水処理装置。2. The anaerobic tank is mainly composed of a first anaerobic tank in which precipitation and anaerobic decomposition are mainly performed, and an anaerobic decomposition and denitrification reaction of an object to be treated, which is introduced from the first anaerobic tank. The domestic sewage treatment apparatus according to claim 1, wherein the domestic sewage treatment apparatus is configured with a second anaerobic tank that is used in the above.
の容積比が、２：１であることを特徴とする、請求項２
に記載の生活汚水処理装置。3. The volume ratio of the first anaerobic tank to the second anaerobic tank is 2: 1.
The domestic sewage treatment apparatus described in.
スラッジが、第１嫌気性槽へ搬送されることを特徴とす
る、請求項２又は３に記載の生活汚水処理装置。4. The domestic sewage treatment apparatus according to claim 2, wherein the sludge transported by the sludge transport apparatus is transported to the first anaerobic tank.
殖のための接触濾材を含んでいることを特徴とする、請
求項１〜４の何れか１項に記載の生活汚水処理装置。5. The domestic sewage treatment apparatus according to claim 1, wherein the contact aeration chamber includes a contact filter medium for adhering and propagating microorganisms.
あることを特徴とする、請求項５に記載の生活汚水処理
装置。6. The domestic sewage treatment apparatus according to claim 5, wherein the contact filter medium is a porous plate-like contact filter medium.
ことを特徴とする、請求項５又は６に記載の生活汚水処
理装置。7. The domestic sewage treatment apparatus according to claim 5, wherein the contact filter medium is made of polyurethane.
２嫌気性槽と前記接触曝気室との間の分離壁に対して平
行に設けられた散気管により行われることを特徴とす
る、請求項１〜７の何れか１項に記載の生活汚水処理装
置。8. The air supply to the contact aeration chamber is performed by an air diffuser provided parallel to a partition wall between the second anaerobic tank and the contact aeration chamber. The domestic sewage treatment apparatus according to any one of claims 1 to 7.
室へ空気を注入する空気注入管と、前記空気注入管を通
じて供給される空気の上昇作用により前記最終沈澱室の
下部に沈澱及び脱離されたスラッジを前記第１嫌気性槽
へ搬送するスラッジ搬送管とより構成されることを特徴
とする、請求項１〜８の何れか１項に記載の生活汚水処
理装置。9. The sludge transfer device is configured to inject and inject air into the final settling chamber and settle and desorb at a lower part of the final settling chamber by a rising action of air supplied through the air injecting pipe. The domestic sewage treatment apparatus according to any one of claims 1 to 8, which is configured by a sludge transfer pipe that transfers the sludge to the first anaerobic tank.
ジ搬送管の直径の１／５〜１／１０倍であり、前記スラ
ッジ搬送管の底部は、前記接触曝気室と前記最終沈澱室
との間の分離壁の底部と高さが一致し、前記空気注入管
は、前記スラッジ搬送管の上部からその長さの３／４の
位置に注入口が開口していることを特徴とする、請求項
９に記載の生活汚水処理装置。10. The diameter of the air injection pipe is 1/5 to 1/10 times the diameter of the sludge transfer pipe, and the bottom of the sludge transfer pipe is between the contact aeration chamber and the final precipitation chamber. The height of the separation wall is the same as that of the bottom of the separation wall, and the air injection pipe has an injection port opening from the upper portion of the sludge transfer pipe to a position 3/4 of its length. Item 9. The domestic sewage treatment apparatus according to item 9.
結される下端部が、接触曝気室に向かって傾いているこ
とを特徴とする、請求項１〜１０の何れか１項に記載の
生活汚水処理装置。11. The final precipitation chamber according to claim 1, wherein a lower end portion of the final precipitation chamber connected to the contact aeration chamber is inclined toward the contact aeration chamber. Household sewage treatment equipment.
た濾材を含み、前記濾材の流動を防止するための流動防
止手段を備えていることを特徴とする、請求項１〜１１
の何れか１項に記載の生活汚水処理装置。12. The filtration / decomposition chamber includes a filter medium filled therein, and is provided with a flow prevention means for preventing the flow of the filter medium.
The domestic sewage treatment apparatus according to any one of 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR6034/1994 | 1994-03-25 | ||
| KR1019940006034A KR960002270B1 (en) | 1994-03-25 | 1994-03-25 | Anaerobic and contact aeration type sewage disposal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07256289A true JPH07256289A (en) | 1995-10-09 |
Family
ID=19379589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6746395A Pending JPH07256289A (en) | 1994-03-25 | 1995-03-27 | Life sewage disposal device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH07256289A (en) |
| KR (1) | KR960002270B1 (en) |
| MY (1) | MY128747A (en) |
| TW (1) | TW282447B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233867A (en) * | 2001-02-13 | 2002-08-20 | Tokyo Metropolis | Method for removing scum layer, spray nozzle for removing scum layer, and biological reaction tank |
| KR200466359Y1 (en) * | 2012-09-24 | 2013-04-10 | 쎄파주식회사 | Rainwater reservoir |
| CN108503095A (en) * | 2018-06-23 | 2018-09-07 | 安徽拓谷物联科技有限公司 | Domestic sewage in rural areas integrated equipment for wastewater treatment |
| CN112875860A (en) * | 2021-01-15 | 2021-06-01 | 安徽之泓环境工程有限公司 | High-effect sewage treatment system of MBBR |
| CN115745210A (en) * | 2021-09-02 | 2023-03-07 | 江苏凯赛净化系统集成有限公司 | Domestic sewage purification system |
| CN118405818A (en) * | 2024-07-04 | 2024-07-30 | 江苏省城市规划设计研究院有限公司 | An integrated rural domestic sewage treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61227892A (en) * | 1985-02-06 | 1986-10-09 | レクチセル | Method and apparatus for performing microbial fermentation |
| JPH0398697A (en) * | 1989-09-11 | 1991-04-24 | Kubota Corp | Water treatment apparatus |
| JPH04367788A (en) * | 1991-06-14 | 1992-12-21 | Kubota Corp | Purification tank |
| JPH04371299A (en) * | 1991-06-20 | 1992-12-24 | Ebara Infilco Co Ltd | Method and device for biologically nitrifying and denitrifying organic sewage |
| JPH0619898B2 (en) * | 1985-12-26 | 1994-03-16 | コニカ株式会社 | Demodulator |
-
1994
- 1994-03-25 KR KR1019940006034A patent/KR960002270B1/en not_active Expired - Fee Related
-
1995
- 1995-03-24 MY MYPI9500741 patent/MY128747A/en unknown
- 1995-03-27 JP JP6746395A patent/JPH07256289A/en active Pending
- 1995-03-28 TW TW84103005A patent/TW282447B/zh active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61227892A (en) * | 1985-02-06 | 1986-10-09 | レクチセル | Method and apparatus for performing microbial fermentation |
| JPH0619898B2 (en) * | 1985-12-26 | 1994-03-16 | コニカ株式会社 | Demodulator |
| JPH0398697A (en) * | 1989-09-11 | 1991-04-24 | Kubota Corp | Water treatment apparatus |
| JPH04367788A (en) * | 1991-06-14 | 1992-12-21 | Kubota Corp | Purification tank |
| JPH04371299A (en) * | 1991-06-20 | 1992-12-24 | Ebara Infilco Co Ltd | Method and device for biologically nitrifying and denitrifying organic sewage |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233867A (en) * | 2001-02-13 | 2002-08-20 | Tokyo Metropolis | Method for removing scum layer, spray nozzle for removing scum layer, and biological reaction tank |
| JP4499937B2 (en) * | 2001-02-13 | 2010-07-14 | 東京都 | Scum layer removing method, spray nozzle for removing scum layer, and biological reaction tank |
| KR200466359Y1 (en) * | 2012-09-24 | 2013-04-10 | 쎄파주식회사 | Rainwater reservoir |
| CN108503095A (en) * | 2018-06-23 | 2018-09-07 | 安徽拓谷物联科技有限公司 | Domestic sewage in rural areas integrated equipment for wastewater treatment |
| CN112875860A (en) * | 2021-01-15 | 2021-06-01 | 安徽之泓环境工程有限公司 | High-effect sewage treatment system of MBBR |
| CN115745210A (en) * | 2021-09-02 | 2023-03-07 | 江苏凯赛净化系统集成有限公司 | Domestic sewage purification system |
| CN118405818A (en) * | 2024-07-04 | 2024-07-30 | 江苏省城市规划设计研究院有限公司 | An integrated rural domestic sewage treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW282447B (en) | 1996-08-01 |
| KR960002270B1 (en) | 1996-02-14 |
| MY128747A (en) | 2007-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105585220B (en) | A kind of urban sewage treatment system and purification method | |
| US6083386A (en) | Method of treating animal waste | |
| CN101928096A (en) | Method and system for sewage treatment in ecologically sensitive areas | |
| US10358361B2 (en) | System and method for remediation of wastewater including aerobic and electrocoagulation treatment | |
| US6395174B1 (en) | Method for lagoon remediation | |
| CN101885553B (en) | Fixed reproductive microorganism sewage purifying and treating method and device | |
| WO2009151190A1 (en) | Combined organic sewage disposal installation using effective microorganism | |
| CN110240350A (en) | It is a kind of to enhance sewerage integrated equipment and impact resistance method using nitrification liquid reflux | |
| CN103771648B (en) | A kind for the treatment of process of Low Concentration Ammonia Containing Wastewater | |
| JPH07256289A (en) | Life sewage disposal device | |
| CN1162354C (en) | biological and chemical advanced sewage treatment method | |
| JPH08281284A (en) | Combined septic tank | |
| KR100283867B1 (en) | Large scale sewage treatment method using active microorganism | |
| CN111072234A (en) | ZONBER efficient energy-saving small-sized sewage treatment integrated device | |
| CN112830627B (en) | Domestic sewage treatment method and integrated treatment equipment | |
| CN212222744U (en) | Sewage recycling device for expressway service area | |
| CN212833044U (en) | Stirring device for anaerobic zone or anoxic zone of biochemical sewage treatment system | |
| CN115477439A (en) | Integrated MBR sewage treatment equipment | |
| CN102153247B (en) | Biological coupled nitrogen and phosphorus removed sewage purification and regeneration treatment method and system | |
| CN112408702A (en) | Domestic sewage treatment method | |
| KR20000013589A (en) | Sewage merge-purifying treatment apparatus | |
| CN111606506A (en) | Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide | |
| CN1121351C (en) | Small-scale efficient sewage treatment installation | |
| KR100223543B1 (en) | Wastewater treatment system and method by multiple anaerobic exhaler using waste yakult | |
| CN114349273B (en) | Nitrogen and phosphorus removal system and process for sewage treatment |