KR20130101296A - Advanced wastewater treatment system using fusion type - Google Patents

Advanced wastewater treatment system using fusion type Download PDF

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KR20130101296A
KR20130101296A KR20120022324A KR20120022324A KR20130101296A KR 20130101296 A KR20130101296 A KR 20130101296A KR 20120022324 A KR20120022324 A KR 20120022324A KR 20120022324 A KR20120022324 A KR 20120022324A KR 20130101296 A KR20130101296 A KR 20130101296A
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tank
scum
treatment system
sludge
sedimentation
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KR101352924B1 (en
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조성근
김동욱
최형일
임중만
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엘엔에스케이엔지니어링(주)
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • 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

Abstract

PURPOSE: A fused wastewater treatment system is provided to extend the lifetime of a separation film and the cleaning period of a separation film in a film-separating process and to remove microorganism secretion materials. CONSTITUTION: A fused wastewater treatment system comprises a bioreactor tank (100); a film separator tank (200); a sedimentation tank (300); and a smart stream (500). The bioreactor tank includes an anaerobic tank (10), an anoxic chamber (20); and an aeration tank (30). The film separator tank removes solid materials by making the treated water flow into the tank and transfers the treated water to a discharge tub. The sedimentation tank degases, deposits, and separates the slurry from the film separator tank and returns sediment sludge. The smart stream make the surplus sludge of the sediment sludge and supernatant flow in, chemically treats the same, and makes treated water with scum removed flow into the bioreactor tank. [Reference numerals] (10) Anaerobic tank; (20) Anoxic chamber; (200) Film separator tank; (30) Aeration tank; (300) Sedimentation tank; (500) Line mixer; (700) Floating tank; (710) Pressurizing tank; (750) Scum storage tank; (AA) Inlet water; (BB) Discharge tank; (CC) Discharge; (DD) Scum; (EE) Organic coagulant; (FF) Inorganic coagulant

Description

융합형 하폐수 고도처리시스템{Advanced wastewater treatment system using fusion type}Advanced wastewater treatment system using fusion type}

본 발명은 막분리 공정의 분리막 세정주기 연장 및 분리막의 수명이 연장되도록 하며, 강화된 총인(T-P) 기준을 최대 0.2mg/L까지 만족하도록 하고, 잉여 슬러지의 함수율을 낮춰 잉여 슬러지의 부피 감소 및 탈수시 cake 함수율을 낮춤으로써, cake 발생량이 감소되도록 하기 위한 융합형 하폐수 고도처리시스템에 관한 것이다.
The present invention extends the membrane cleaning cycle of the membrane separation process and extends the life of the membrane, satisfies the enhanced total phosphorus (TP) standard up to 0.2 mg / L, lowers the water content of the excess sludge, and reduces the volume of the excess sludge. By lowering the cake moisture content during dehydration, the present invention relates to an advanced fusion type sewage treatment system for reducing cake generation.

일반적인 하폐수 처리공정은 활성슬러지를 이용한 생물학적 공정으로 호기성 미생물이 호기의 조건에서 유기물을 산화ㆍ습득하도록 함으로써 하폐수 내 유기물질의 농도를 저감시키는 방식을 채용한다. The general wastewater treatment process is a biological process using activated sludge, which adopts a method of reducing the concentration of organic substances in wastewater by allowing aerobic microorganisms to oxidize and acquire organic matter under aerobic conditions.

종래 생물학적 공정은 미생물의 상태를 혐기, 무산소, 호기 조건으로 다변된 다단계 공정을 거침으로써 유입되는 하폐수의 유기물 및 영양염류를 처리하게 된다. 혐기상태에서는 인이 방출되며, 방출된 인은 호기조건에서 미생물이 증식함에 따라 과잉섭취(luxury uptake)되고, 공정에서 잉여 슬러지가 반출됨으로 인해 제거된다. 호기상태에서는 상기한 바와 같이 미생물이 증식하며 인이 과잉 섭취되고, 유기물이 산화됨과 동시에 암모니아 형태의 질소성분이 아질산성 질소(NO2-, Nitrite)형태를 거쳐 질산성 질소(NO3-Nitrate)로 전환하게 된다. 이렇게 전환된 질소성분은 내부반송을 통해 무산소조로 유입되어 무산소 상태에서 질소가스(N2)로 환원되어 대기 중으로 소멸된다.Conventional biological processes treat organic matter and nutrients of wastewater flowing into the microbial state through anaerobic, anoxic, and aerobic processes. Phosphorus is released in the anaerobic state, and the released phosphorus is luxury uptake as the microorganism grows in aerobic conditions, and is removed due to the release of excess sludge in the process. In the aerobic state, microorganisms are proliferated, phosphorus is excessively ingested, organic matter is oxidized, and ammonia nitrogen is converted into nitrite nitrogen (NO3-Nitrate) via nitrite (NO2-, Nitrite). Done. The nitrogen component thus converted is introduced into the anoxic tank through the internal transport, and is reduced to nitrogen gas (N 2 ) in the oxygen-free state and disappeared into the atmosphere.

나아가, 막분리를 사용한 하폐수의 처리공정도 운전방법이 기존의 생물학적 공정과 유사하며, 종래 막분리 공정이 대한민국 등록특허 제0401720호에 제시되어 있다.Furthermore, the operation of the wastewater treatment using membrane separation is also similar to the existing biological process, and the conventional membrane separation process is disclosed in Korean Patent No. 0407720.

한편, 화학처리 및 부상 공정은 하폐수에 화학약품을 주입하여 응집시키고, 수중에 공기를 주입하여 용해된 공기가 미세한 기포로 용출되면서 고형물과 접촉하여 고형물의 밀도를 감소시켜 액체 표면으로 떠오르게 하는 원리를 이용한 것이다. 이러한 화학처리 및 부상 공정은 반응조, 응집조, 부상조 등의 구성으로 복잡한 구성을 가진다.On the other hand, the chemical treatment and flotation process injects chemicals into the sewage water to agglomerate, and injects air into the water so that the dissolved air is eluted with fine bubbles, and in contact with the solids to reduce the density of the solids to rise to the surface of the liquid. It is used. This chemical treatment and flotation process has a complex configuration of the reaction tank, flocculation tank, flotation tank and the like.

종래 부상 장치를 이용한 하폐수 처리장치가 대한민국 등록특허 제1026768호에 제시되어 있다.A wastewater treatment apparatus using a conventional flotation device is shown in Korean Patent No. 1026768.

상기와 같은 종래의 하폐수 처리시스템은 다음과 같은 문제가 있다.The conventional wastewater treatment system as described above has the following problems.

막분리 공정은 처리효율은 우수하나, 운영이 지속될수록 막의 여과효율이 감소한다. 그 이유는 생물반응조 내에 미생물의 대사로 인해 막 폐색을 유발시키는 분비물질(EPS, SMP)이 생물반응조 내에 농축되기 때문이다.Membrane separation processes have good treatment efficiencies, but the membrane filtration efficiency decreases as operations continue. This is because secretory substances (EPS, SMP) that cause membrane blockage due to the metabolism of microorganisms in the bioreactor are concentrated in the bioreactor.

또한, 긴 SRT(solid retention time)를 갖는 막분리 공정은 강화된 총인(T-P) 기준인 최대 0.2mg/L을 만족시킬 수 없다는 문제점이 있다.In addition, the membrane separation process with a long solid retention time (SRT) has a problem that can not meet the maximum 0.2mg / L, which is the enhanced total phosphorus (T-P) criteria.

나아가, 기존의 인 제거기술은 약품처리 공정으로 응집조, 반응조, 침전조 등의 구성으로 시설이 복잡하고 부지가 많이 소요된다.
In addition, the existing phosphorus removal technology is a chemical treatment process is a complex facility, such as a condensation tank, a reaction tank, a precipitation tank takes a lot of sites.

대한민국 등록특허 제0401720호(2003.10.1)Republic of Korea Patent No.0401720 (2003.10.1) 대한민국 등록특허 제1026768호(2011.3.28)Republic of Korea Patent No. 1026768 (2011.3.28)

본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 막분리 공정의 막 폐색을 유발시키는 분비물질을 화학 처리하여 분리막 세정주기 연장 및 분리막의 수명을 연장시킬 수 있는 융합형 하폐수 고도처리시스템을 제공하는 것이다.The present invention has been made to solve the above problems, and provides a fusion-type sewage treatment system that can extend the membrane cleaning cycle and extend the life of the membrane by chemically treating the secretion material that causes the membrane blockage of the membrane separation process. It is.

또한, 본 발명의 목적은 두 개의 공정을 하나의 공정으로 일체화하여 융합형 단일공정으로 구성함으로써 강화된 총인(T-P) 기준을 최대 0.2mg/L까지 만족시킬 수 있는 융합형 하폐수 고도처리시스템을 제공하는 것이다.In addition, an object of the present invention is to provide a convergent sewage wastewater treatment system that can satisfy the enhanced total phosphorus (TP) standards up to 0.2mg / L by integrating two processes into one process to form a converged single process. It is.

또한, 본 발명의 목적은 잉여 슬러지의 함수율을 낮춰 잉여슬러지의 부피 감소 및 탈수시 Cake 함수율을 낮춤으로써 Cake 발생량을 감소시키는데 그 목적이 있다.
In addition, an object of the present invention is to reduce the amount of cake generated by lowering the water content of the excess sludge to reduce the volume of the excess sludge and lower the cake moisture content when dewatering.

본 발명은 혐기조(10), 무산소조(20) 및 호기조(30)를 포함하는 생물반응조(100); 상기 생물반응조(100)를 통하여 생물학적 분해 처리된 처리수가 유입되고, 분리막을 통하여 고형물질을 제거하고, 처리수를 방류조(210)에 이송하는 막분리조(200); 상기 막분리조(200)를 통하여 반송슬러지가 유입되고, 탈기 및 침강 분리시키며, 침전슬러지는 내부반송시키는 침강조(300); 및 상기 침강조(300)를 통하여 침강된 침전슬러지 중 일부의 잉여슬러지 및 상등수가 유입되고, 화학처리하고 스컴을 부상시키며, 스컴이 제거된 처리수를 상기 생물반응조(100)로 유입시키는 스마트스트림(500);을 포함하는 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.The present invention comprises an anaerobic tank (10), an anaerobic tank (20) and a bioreactor including aerobic tank (30); A membrane separation tank 200 through which the biodegraded treated water is introduced through the bioreactor 100, removing solid matter through the membrane, and transferring the treated water to the discharge tank 210; A conveying sludge is introduced through the membrane separation tank 200, and a settling tank 300 for internally transporting precipitated sludge is separated and degassed and settled; And the surplus sludge and the supernatant of some of the settling sludge settled through the settling tank 300, chemical treatment and floating scum, and the smart stream flowing the scum removed to the bioreactor 100 Provides a fusion type sewage treatment system, characterized in that it comprises a (500).

본 발명에 있어서, 상기 스마트스트림(500)은, 상기 침강조(300)를 통하여 침강된 침전슬러지 중 일부의 잉여슬러지 및 상등수가 유입되고, 주 응집제 및 보조 응집제가 주입되어 침강수와 혼합시키는 라인믹서(600)와, 상기 라인믹서(600)를 통하여 응집된 응집수가 유입되고, 응집수에 포함된 스컴을 부상시켜 제거하는 부상조(700)를 포함하고, 상기 부상조(700)를 통하여 스컴이 제거된 처리수는 상기 무산소조(20)로 유입되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.In the present invention, the smart stream 500, the excess sludge and supernatant of some of the sedimentation sludge sedimented through the sedimentation tank 300 is introduced, the main coagulant and auxiliary coagulant is injected and mixed with the sedimentation water The mixer 600 and the flocculation water aggregated through the line mixer 600 is introduced, and includes a flotation tank 700 for lifting and removing scum included in the flocculation water, and the scum through the flotation tank 700. This removed treated water is provided to the fusion type sewage treatment system, characterized in that flowing into the anaerobic tank 20.

본 발명에 있어서, 상기 부상조(700) 내의 응집수를 순환시키고, 응집수를 가압하여 기포를 생성하는 가압탱크(미도시);를 더 포함하여, 상기 부상조(700)는 상기 가압탱크로부터 생성된 기포에 의해 스컴이 부상되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.In the present invention, the pressure tank (not shown) for circulating the flocculation water in the flotation tank 700, and pressurized the flocculation water to generate bubbles; The flotation tank 700 further comprises a Provided is a fusion type sewage treatment system, characterized in that scum is floated by the generated bubbles.

본 발명에 있어서, 상기 부상조(700) 내에 부상된 스컴은 스컴저장조(750) 내로 유입되어 저장되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.In the present invention, the scum floated in the flotation tank 700 provides an integrated sewage wastewater treatment system, characterized in that the scum storage tank 750 is introduced into and stored.

본 발명에 있어서, 상기 주 응집제는 폴리염화알루미늄(PAC)이고, 상기 보조 응집제는 폴리머(polymer)인 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.In the present invention, the primary flocculant is polyaluminum chloride (PAC), and the secondary flocculant is a polymer (polymer) provides a fusion type sewage treatment system.

본 발명에 있어서, 상기 침강조(300)의 상등수는 상기 무산소조(20)로 유입되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템을 제공한다.
In the present invention, the supernatant of the sedimentation tank 300 provides an advanced fusion type sewage treatment system, characterized in that it is introduced into the oxygen-free tank (20).

본 발명의 융합형 하폐수 고도처리시스템에 따르면, 다음과 같은 효과가 있다.According to the fusion type sewage treatment system of the present invention, the following effects are obtained.

첫째, 막분리 공정과 화학처리 및 가압부상 공정을 융합함으로써, 미생물 분비물질을 제거하고 막분리 공정의 분리막 세정주기를 연장 및 분리막의 수명을 연장시킬 수 있다.First, by fusing the membrane separation process, the chemical treatment and the pressure flotation process, it is possible to remove the microbial secretion material, prolong the membrane cleaning cycle of the membrane separation process and extend the life of the membrane.

둘째, 두 개의 공정을 하나의 공정으로 일체화하여 융합형 단일공정으로 구성함으로써 강화된 총인(T-P) 기준 최대 0.2mg/L을 만족시킬 수 있다. Second, by combining two processes into one process to form a converged single process, the maximum total phosphorus (T-P) standard of 0.2 mg / L can be satisfied.

셋째, 잉여 슬러지의 함수율을 낮춰 잉여슬러지의 부피 감소 및 탈수시 Cake 함수율을 낮춤으로써 Cake 발생량을 감소시킬 수 있다.
Third, the amount of cake generated can be reduced by lowering the water content of the excess sludge and reducing the water content of the cake when dehydrating the volume of the excess sludge.

도 1은 본 발명의 바람직한 실시예에 따른 융합형 하폐수 고도처리시스템의 블록도.1 is a block diagram of a fusion type sewage treatment system according to a preferred embodiment of the present invention.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

본 발명의 바람직한 실시예에 따른 융합형 하폐수 고도처리시스템은, 도 1에 도시한 바와 같이, 생물반응조(100)와 막분리조(200)와 침강조(300)와 스마트스트림(500)을 포함한다.Fusion type sewage treatment system according to a preferred embodiment of the present invention, as shown in Figure 1, includes a bioreactor 100, a membrane separation tank 200, a sedimentation tank 300 and a smart stream 500 do.

생물반응조(100)는 혐기조(10), 무산소조(20) 및 호기조(30)를 거쳐 처리될 수 있다.The bioreactor 100 may be processed through an anaerobic tank 10, an anaerobic tank 20, and an aerobic tank 30.

이에 대해 상세히 설명하면, 혐기조(10)에 하폐수와 같은 유입수가 유입되어, 교반기(11)에 의해 교반되어 혼합되고, 혐기 상태를 유지하며, 인 제거 미생물이 인을 방출하게 한다.In detail, the inflow water, such as wastewater, flows into the anaerobic tank 10, is stirred and mixed by the stirrer 11, maintains the anaerobic state, and the phosphorus removing microorganism releases phosphorus.

무산소조(20)는 혐기조(10)에서 처리된 유입수가 유입되어, 교반기(21)에 의해 교반되어 혼합되고, 무산소 상태에서 탈질 작용을 일으킨다.The anoxic tank 20 flows inflow water treated in the anaerobic tank 10, is stirred and mixed by the stirrer 21, and causes denitrification in anoxic state.

호기조(30)는 무산소조(20)에서 처리된 유입수가 유입되어, 공기를 공급하여 호기 상태를 유지하면서, 유기물을 제거하고 질산화를 일으키며, 인 제거 미생물이 인을 과량으로 흡수하게 한다.The aerobic tank 30 is introduced with the inflow water treated in the oxygen-free tank 20, while supplying air to maintain the aerobic state, removes organic matter and causes nitrification, phosphorus removal microorganisms to absorb the excess phosphorus.

상기와 같이, 혐기조(10), 무산소조(20) 및 호기조(30)를 차례로 거치며 생물반응조(100)를 통하여 생물학적 분해 처리되어 막분리조(200)로 유입된다.As described above, the biodegradation process is passed through the anaerobic tank 10, the anaerobic tank 20, and the aerobic tank 30 in order through the bioreactor 100 to enter the membrane separation tank 200.

막분리조(200)는 생물반응조(100)를 통하여 생물학적 분해 처리된 처리수가 유입되고, 분리막을 통해 고형물질을 제거하고, 여액은 방류조(210)로 유입되어 외부로 방류된다.Membrane separation tank 200 is a biologically decomposed treated water flows through the bioreactor 100, removes the solid material through the membrane, the filtrate is introduced into the discharge tank 210 is discharged to the outside.

막분리조(200)를 통하여 반송슬러지가 침강조(300)로 유입되며, 침강조(300)에서의 정체시간에 의해 반송슬러지 내 용존산소가 탈기되고, 물리적 작용에 의하여 반송슬러지가 고액 분리된다.The conveying sludge flows into the settling tank 300 through the membrane separation tank 200, the dissolved oxygen in the conveying sludge is degassed by the stagnation time in the settling tank 300, and the conveying sludge is solid-liquid separated by physical action. .

침강조(300)의 침전슬러지는 내부 반송이 이루어져 생물반응조(100)의 혐기조(10)로 유입된다.The settling sludge of the sedimentation tank 300 is internally conveyed and flows into the anaerobic tank 10 of the bioreactor 100.

침강조(300)의 상등수는 스마트스트림(500)에 반송(0.5~1Q)하고, 반송량 제어를 통해 현장의 총인(T-P) 기준에 맞도록 총인(T-P) 제거효율을 조정할 수 있다. The supernatant of the sedimentation tank 300 may be conveyed to the smart stream 500 (0.5 to 1Q), and the total phosphorus (T-P) removal efficiency may be adjusted to meet the total phosphorus (T-P) standard through the transport amount control.

스마트스트림(500)에서는 침강조(300)를 통하여 상등수가 유입되고, 스마트스트림(500)은 상등수를 화학처리 하여 인 제거하고, 스컴을 부상시키며, 스컴이 제거된 처리수를 생물반응조(100)로 유입시킨다. 또한 잉여슬러지는 침강슬러지를 가압부상조로 유입하여 화학처리 후 스컴 형태로 제거하여 슬러지부피를 줄일 수 있다.(함수율 95%) 이러한 스마트스트림(500)은 라인믹서(600)와 부상조(700)를 포함하는 것이 바람직하다.In the smart stream 500, the supernatant is introduced through the sedimentation tank 300, and the smart stream 500 chemically treats the supernatant to remove phosphorus, floats scum, and removes the scum from the bioreactor 100. Inflow to In addition, the surplus sludge is introduced into the pressurized flotation tank to remove the sludge after chemical treatment to reduce the sludge volume (water content 95%). The smart stream 500 is a line mixer 600 and flotation tank 700. It is preferable to include.

라인믹서(600)는 침강조(300)를 통하여 상등수가 유입되고, 주 응집제 및 보조 응집제가 주입되어 상등수와 혼합시킨다.Line mixer 600 is the supernatant is introduced through the settling tank 300, the main coagulant and the auxiliary coagulant is injected and mixed with the supernatant.

주 응집제는 폴리염화알루미늄(PAC)이고, 보조 응집제는 폴리머(polymer)일 수 있으나, 이에 한정하는 것은 아니다.The primary coagulant may be polyaluminum chloride (PAC), and the secondary coagulant may be a polymer, but is not limited thereto.

부상조(700)는 라인믹서(600)를 통하여 응집된 응집수가 유입되고, 응집수에 포함된 스컴을 부상시켜 제거한다.Floating tank 700 is agglomerated with the aggregated water flows through the line mixer 600, to remove the scum included in the flocculation water.

이러한 부상조(700)에는 가압탱크(미도시)가 연결되어 있어, 가압탱크는 부상조(700) 내의 응집수를 순환시키고, 응집수를 가압하여 기포를 생성한다.A pressure tank (not shown) is connected to the floating tank 700, and the pressure tank circulates the aggregated water in the floating tank 700 and pressurizes the aggregated water to generate bubbles.

따라서, 부상조(700)는 가압탱크로부터 생성된 기포에 의해 스컴이 부상되며, 부상조(700) 내에 부상된 스컴은 스컴저장조(750)에 저장된다. 이때, 스컴은 고형물 5% 정도이다. 분리박의 폐색을 일으키는 고분자물질(SMP, EPS 등)을 부상조(700)에서 제거하여, 분리막 유동(flux)을 0.3m/d에서 0.4m/d로 향상시킬 수 있다.Therefore, the floating tank 700 is scum is floated by the bubbles generated from the pressure tank, the scum floated in the floating tank 700 is stored in the scum storage tank 750. At this time, the scum is about 5% solids. By removing the polymer material (SMP, EPS, etc.) causing the blockage of the separation foil in the flotation tank 700, the membrane flux (flux) can be improved from 0.3 m / d to 0.4 m / d.

부상조(700)를 통하여 스컴이 제거된 처리수는 무산소조(20)로 유입된다.
The treated water from which scum is removed through the floating tank 700 is introduced into the anaerobic tank 20.

상기와 같이, 본 발명의 바람직한 실시 예에 따른 융합형 하폐수 고도처리시스템은 막분리(MBR) 공정과 화학처리 및 가압부상 공정을 융합함으로써, 미생물 분비물질을 제거하여 막분리(MBR) 공정의 분리막 세정주기를 연장하고, 분리막의 수명을 연장시킬 수 있다..As described above, the fusion type sewage treatment system according to the preferred embodiment of the present invention fuses a membrane separation (MBR) process, a chemical treatment, and a pressure flotation process to remove microbial secreted substances, thereby separating the membrane of the membrane separation (MBR) process. The cleaning cycle can be extended and the life of the separator can be extended.

또한, 두 개의 공정을 하나의 공정으로 일체화하여 융합형 단일공정으로 구성함으로써, 강화된 총인(T-P) 기준을 최대 0.2mg/L까지 만족시킬 수 있다.In addition, by combining two processes into a single process to configure a single fusion process, it is possible to meet the enhanced total phosphorus (T-P) criteria up to 0.2mg / L.

나아가, 잉여 슬러지의 부피를 35% 정도 줄여, 후속 탈수 공정의 비용이 절감된다. 즉, 잉여 슬러지의 함수율을 99%에서 95%로 낮춰 잉여슬러지의 부피 감소 및 탈수시 Cake 함수율을 낮춤으로써, Cake 발생량을 감소시킬 수 있다.
Furthermore, the volume of surplus sludge is reduced by 35%, thus reducing the cost of subsequent dewatering processes. That is, by reducing the moisture content of the excess sludge from 99% to 95% by reducing the volume of the excess sludge and lowering the cake moisture content when dewatering, it is possible to reduce the amount of cake generated.

100 : 생물반응조 10 : 혐기조
20 : 무산소조 30 : 호기조
200 : 막분리조 300 : 침강조
500 : 스마트스트림 600 : 라인믹서
700 : 부상조 750 : 스컴저장조100: bioreactor 10: anaerobic tank
20: anoxic tank 30: aerobic tank
200: membrane separation tank 300: sedimentation tank
500: Smart Stream 600: Line Mixer
700: floating tank 750: scum storage tank

Claims (6)

혐기조(10), 무산소조(20) 및 호기조(30)를 포함하는 생물반응조(100);
상기 생물반응조(100)를 통하여 생물학적 분해 처리된 처리수가 유입되고, 분리막을 통하여 고형물질을 제거하고, 처리수를 방류조(210)에 이송하는 막분리조(200);
상기 막분리조(200)를 통하여 반송슬러지가 유입되고, 탈기 및 침강 분리시키며, 침전슬러지는 내부반송시키는 침강조(300); 및
상기 침강조(300)를 통하여 침강된 침전슬러지 중 일부의 잉여슬러지 및 상등수가 유입되고, 화학처리하고 스컴을 부상시키며, 스컴이 제거된 처리수를 상기 생물반응조(100)로 유입시키는 스마트스트림(500);을 포함하는 것을 특징으로 하는 융합형 하폐수 고도처리시스템.
A bioreaction tank 100 including an anaerobic tank 10, an anaerobic tank 20, and an aerobic tank 30;
A membrane separation tank 200 through which the biodegraded treated water is introduced through the bioreactor 100, removing solid matter through the membrane, and transferring the treated water to the discharge tank 210;
A conveying sludge is introduced through the membrane separation tank 200, and a settling tank 300 for internally transporting precipitated sludge is separated and degassed and settled; And
Surplus sludge and supernatant of some of the settling sludge settled through the sedimentation tank 300, the chemical stream and the scum float, and the smart stream for flowing the scum removed to the bioreactor 100 ( 500); fusion type sewage treatment system, characterized in that it comprises a.
제1항에 있어서,
상기 스마트스트림(500)은,
상기 침강조(300)를 통하여 침강된 침전슬러지 중 일부의 잉여슬러지 및 상등수가 유입되고, 주 응집제 및 보조 응집제가 주입되어 침강수와 혼합시키는 라인믹서(600)와,
상기 라인믹서(600)를 통하여 응집된 응집수가 유입되고, 응집수에 포함된 스컴을 부상시켜 제거하는 부상조(700)를 포함하고,
상기 부상조(700)를 통하여 스컴이 제거된 처리수는 상기 무산소조(20)로 유입되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템.
The method of claim 1,
The smart stream 500,
The excess sludge and the supernatant of some of the sedimentation sludge settled through the sedimentation tank 300 is introduced, the main coagulant and the auxiliary coagulant is injected and mixed with the sedimentation water;
The flocculation water aggregated through the line mixer 600 is introduced, and includes a flotation tank 700 for floating by removing scum included in the flocculation water.
The treated water from which scum is removed through the floatation tank 700 is introduced into the anoxic tank 20, characterized in that the advanced sewage treatment system.
제2항에 있어서,
상기 부상조(700) 내의 응집수를 순환시키고, 응집수를 가압하여 기포를 생성하는 가압탱크(미도시);를 더 포함하여,
상기 부상조(700)는 상기 가압탱크로부터 생성된 기포에 의해 스컴이 부상되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템.
The method of claim 2,
A pressure tank (not shown) for circulating the agglomerated water in the flotation tank 700, and pressurized the agglomerated water to generate bubbles.
The flotation tank 700 is a fusion type sewage treatment system, characterized in that the scum is floating by the bubbles generated from the pressure tank.
제2항에 있어서,
상기 부상조(700) 내에 부상된 스컴은 스컴저장조(750) 내로 유입되어 저장되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템.
The method of claim 2,
The scum floated in the flotation tank 700 is introduced into the scum storage tank 750 is stored, characterized in that the advanced sewage treatment system.
제2항에 있어서,
상기 주 응집제는 폴리염화알루미늄(PAC)이고,
상기 보조 응집제는 폴리머(polymer)인 것을 특징으로 하는 융합형 하폐수 고도처리시스템.
The method of claim 2,
The main flocculant is polyaluminum chloride (PAC),
The secondary coagulant is a polymer, characterized in that the fusion type sewage treatment system.
제1항에 있어서,
상기 침강조(300)의 상등수는 상기 무산소조(20)로 유입되는 것을 특징으로 하는 융합형 하폐수 고도처리시스템.The method of claim 1,
The supernatant of the sedimentation tank (300) is an fusion type sewage treatment system, characterized in that flowing into the anaerobic tank (20).
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CN104556557A (en) * 2014-12-05 2015-04-29 安徽华盛科技控股股份有限公司 CIT municipal domestic sewage treatment system
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CN112194316A (en) * 2020-09-25 2021-01-08 中交一公局集团有限公司 Integrated treatment system and treatment method for oily tunnel wastewater
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