KR20190016402A - Forward osmosis-reverse osmosis hybrid system for waste water - Google Patents

Forward osmosis-reverse osmosis hybrid system for waste water Download PDF

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KR20190016402A
KR20190016402A KR1020170100594A KR20170100594A KR20190016402A KR 20190016402 A KR20190016402 A KR 20190016402A KR 1020170100594 A KR1020170100594 A KR 1020170100594A KR 20170100594 A KR20170100594 A KR 20170100594A KR 20190016402 A KR20190016402 A KR 20190016402A
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osmosis
water
reverse osmosis
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KR101966941B1 (en
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장암
정상현
임승주
송민재
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성균관대학교산학협력단
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58—Multistep processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/002—Forward osmosis or direct osmosis
    • B01D61/005—Osmotic agents; Draw solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • 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
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • 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

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Biodiversity & Conservation Biology (AREA)
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Abstract

Disclosed is a forward osmosis-reverse osmosis composite water treatment system, which comprises: a first forward osmosis treatment unit for performing forward osmosis treatment on a forward osmosis supply solution and a forward osmosis induction solution in order to concentrate the introduced forward osmosis supply solution to be discharged as a forward osmosis treatment water, and to dilute the introduced forward osmosis induction solution so as to be discharged as a forward osmosis dilution inducing solution; a reverse osmosis treatment unit connected to a discharge side of the first forward osmosis treatment unit, and performing a reverse osmosis treatment to discharge the introduced forward osmosis dilution inducing solution as reverse osmosis treatment water and reverse osmosis concentrated water; and a second forward osmosis treatment unit immersed in seawater, connected to a discharge side of the reverse osmosis treatment unit, and performing forward osmosis treatment to dilute the introduced reverse osmosis concentrated water to be discharged as the forward osmosis induction solution. The forward osmosis induction solution is connected to an inlet side of the first forward osmosis treatment unit to be recycled.

Description

정삼투-역삼투 복합 수처리 시스템{FORWARD OSMOSIS-REVERSE OSMOSIS HYBRID SYSTEM FOR WASTE WATER}[0001] FORWARD OSMOSIS-REVERSE OSMOSIS HYBRID SYSTEM FOR WASTE WATER [0002]

본 발명은 정삼투-역삼투 복합 수처리 시스템에 관한 것으로, 보다 상세하게는 원수의 오염물질 제거 및 해수 담수화의 에너지 효율성을 향상시킬 수 있는 정삼투-역삼투 복합 수처리 시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined osmosis-reverse osmosis water treatment system, and more particularly, to a combined osmosis-reverse osmosis water treatment system capable of removing pollutants in raw water and improving energy efficiency of seawater desalination.

일반적으로 정삼투 및 역삼투의 복합 수처리 공정은 처리될 하수를 정삼투 처리하기 위한 유도용액으로서 해수 등을 이용함으로써, 하수 재이용 및 해수 담수화 공정을 동시에 수행하기 위한 것으로 최근 개발이 많이 이루어지고 있다.In general, the combined water treatment process of the forward osmosis and the reverse osmosis is performed for simultaneously performing the sewage reuse and the desalination process by using seawater as an induction solution for the osmosis treatment of the sewage to be treated.

정삼투 공정의 경우 역삼투 공정에 비해 플럭스(FLUX)가 낮기 때문에 정삼투 공정에서의 원수의 회수율을 역삼투 공정에 비해 낮으며, 전체 공정의 초기 건설 비용을 증가시키게 하는 요인이 된다. 정삼투-역삼투 융합 공정에서는 정삼투 공정을 거친 농축수가 다량 발생되고, 발생된 농축수를 배출, 처리함으로써 전체 공정의 에너지 효율이 감소하게 된다.In the case of the forward osmosis process, the recovery rate of the raw water in the forward osmosis process is lower than that of the reverse osmosis process because the flux (FLUX) is lower than that of the reverse osmosis process, which increases the initial construction cost of the entire process. In the forward osmosis-reverse osmosis fusion process, a large amount of concentrated water is passed through the forward osmosis process, and the generated concentrated water is discharged and treated, thereby reducing the energy efficiency of the entire process.

종래 하수 재이용 및 해수 담수화 공정을 비롯한 분리막 기반의 공정은 분리막의 오염원이 될 수 있는 원수에 존재하는 오염물질의 전처리가 필수적이다. 이러한 전처리 공정은 에너지 소모가 크고, 전처리 공정 자체에서 발생되는 오염현상을 피할 수 없어 추가로 세정 및 유지 관리 비용이 발생된다.Conventional membrane-based processes, including sewage reuse and desalination processes, require pre-treatment of contaminants present in the source water that can become a source of contamination in the separation membrane. Such a pretreatment process consumes a large amount of energy and can not avoid the contamination phenomenon generated in the pretreatment process itself, resulting in additional cleaning and maintenance costs.

대다수의 담수화 공정은 농축수를 해양으로 배출시키거나 이를 처리하기 위한 후단 공정을 설치하여 이를 해결하고자 하나 이 역시 설치비 및 운영 유지비가 소모되는 문제점이 있었다.Most of the desalination process is to discharge the concentrated water to the ocean or to solve the problem by installing a downstream process to treat the concentrated water. However, the installation cost and operation maintenance cost are also consumed.

본 발명의 배경기술은 대한민국 등록특허공보 제10-1399747호(2014.05.20 등록, 발명의 명칭: 정삼투 및 역삼투를 이용한 해수 담수화 시스템)에 게시되어 있다.The background of the present invention is disclosed in Korean Patent Registration No. 10-1399747 (entitled "Seawater Desalination System Using Reverse Osmosis and Reverse Osmosis", Registered on May 20, 2015).

본 발명은 상기와 같은 문제점들을 개선하기 위해 안출된 것으로, 역삼투 농축수를 재활용하고 해수 담수화의 에너지 효율성을 향상시킬 수 있는 정삼투-역삼투 복합 수처리 시스템을 제공하는데 그 목적이 있다.It is an object of the present invention to provide a combined osmosis-reverse osmosis water treatment system capable of recycling reverse osmosis concentrated water and improving the energy efficiency of seawater desalination.

본 발명에 따른 정삼투-역삼투 복합 수처리 시스템은: 유입되는 정삼투 공급용액이 농축되어 정삼투 처리수로 배출되고, 유입되는 정삼투 유도용액이 희석되어 정삼투 희석 유도용액으로 배출되도록, 상기 정삼투 공급용액과 상기 정삼투 유도용액을 정삼투 처리하는 제1정삼투 처리부; 상기 제1정삼투 처리부의 배출 측에 연결되고, 유입되는 상기 정삼투 희석 유도용액이 역삼투 처리수와 역삼투 농축수로 배출되도록 역삼투 처리하는 역삼투 처리부; 해수에 침지되고, 상기 역삼투 처리부의 배출 측에 연결되며, 유입되는 상기 역삼투 농축수가 희석되어 상기 정삼투 유도용액으로 배출되도록 정삼투 처리하는 제2정삼투 처리부;를 포함하고, 상기 정삼투 유도용액은 상기 제1정삼투 처리부의 유입 측과 연결되어 재순환되는 것을 특징으로 한다.The complex osmosis-reverse osmosis water treatment system according to the present invention is characterized in that the forward osmotic supply solution is concentrated and discharged to the forward osmosis treatment water, and the forward osmosis induction solution is diluted and discharged to the forward osmosis dilution inducing solution. A first forward osmosis treatment unit for performing forward osmosis treatment of the forward osmosis supply solution and the forward osmosis induction solution; A reverse osmosis treatment unit connected to the discharge side of the first forward osmosis treatment unit and performing reverse osmosis treatment so that the introduced osmosis dilution inducing solution is discharged as reverse osmosis treated water and reverse osmosis concentrated water; And a second positive osmosis treatment unit which is immersed in seawater and connected to a discharge side of the reverse osmosis treatment unit and performs positive osmotic treatment so that the incoming reverse osmosis concentrated water is diluted and discharged to the positive osmosis induction solution, And the induction solution is connected to the inflow side of the first positive osmotic treatment unit and is recycled.

본 발명에서, 상기 제2정삼투 처리부에는, 상기 역삼투 농축수가 희석되도록 해수가 유입되는 것을 특징으로 한다.In the present invention, seawater is introduced into the second forward osmosis treatment section so that the reverse osmosis concentrated water is diluted.

본 발명에서, 정삼투-역삼투 복합 수처리 시스템은, 상기 역삼투 처리부에서 배출되는 상기 역삼투 처리수를 상기 제2정삼투 처리부로 유입시켜 물을 해수 측으로 배출시키는 역세정 처리부;를 더 포함하는 것을 특징으로 한다.In the present invention, the purified osmosis-reverse osmosis complex water treatment system may further include a backwash processing unit for introducing the reverse osmosis treated water discharged from the reverse osmosis treatment unit into the second forward osmosis treatment unit to discharge water to the sea water side .

본 발명에서, 정삼투-역삼투 복합 수처리 시스템은, 상기 제2정삼투 처리부에 결합되고, 상기 제2정삼투 처리부의 깊이가 조절되는 깊이조절부;를 더 포함하는 것을 특징으로 한다.In the present invention, the cleansing and reverse osmosis complex water treatment system may further include a depth adjusting unit coupled to the second cleansing treatment unit and adjusting the depth of the second cleansing treatment unit.

본 발명에서, 정삼투-역삼투 복합 수처리 시스템은, 원수가 유입되고, 내부에서 광생물이 배양되며, 상기 광생물의 광합성 반응에 의해 처리된 상기 원수가 상기 정삼투 공급용액으로 배출되고, 상기 제1정삼투 처리부에 연결되는 광생물 반응부;를 더 포함하는 것을 특징으로 한다.In the present invention, the purified osmosis-reverse osmosis water treatment system is characterized in that the raw water is introduced, the photobiesthesies are cultivated therein, the raw water treated by the photosynthetic reaction of the photobiestheses is discharged to the positive osmotic supply solution, And a photobioreactor connected to the first forward osmosis treatment unit.

본 발명에서, 정삼투-역삼투 복합 수처리 시스템은, 상기 광생물 반응부에 설치되고, 상기 광생물 반응부에 공기를 주입하는 공기주입펌프부;를 더 포함하는 것을 특징으로 한다.In the present invention, the forward osmosis-reverse osmosis composite water treatment system further includes an air injection pump unit installed in the photobiological reaction unit and injecting air into the photobiological reaction unit.

본 발명에 따른 정삼투-역삼투 복합 수처리 시스템은, 해수에 침지되는 제2정삼투 처리부로 인하여 후단 정삼투 처리를 위한 별도의 공급용액 없이 해수를 활용하여 역삼투 농축수를 희석시킬 수 있는 효과가 있다.The complex osmosis-reverse osmosis water treatment system according to the present invention is characterized in that the second positive osmosis treatment unit immersed in seawater is used to dilute the reverse osmosis concentrated water by using seawater without a separate feed solution for the posterior osmosis treatment .

또한, 제2정삼투 처리부로 인하여 희석된 역삼투 농축수가 정삼투 유도 용액으로 활용되도록 하여 역삼투 농축수 배출 및 이를 처리하기 위한 공정이 요구되지 않고 수처리 시스템의 효율성을 향상시키는 효과가 있다.Also, since the reverse osmosis concentrated water diluted by the second forward osmosis treatment unit is utilized as the forward osmosis induction solution, there is an effect that the efficiency of the water treatment system is improved without the process for discharging the reverse osmosis concentrated water and the treatment thereof.

또한, 제1정삼투 처리부 및 제2정삼투 처리부를 통해 정삼투 희석 유도용액의 농도를 순차적으로 낮춰 역삼투 처리부의 효율을 향상시킬 수 있는 효과가 있다.In addition, the concentration of the positive osmotic dilution inducing solution is sequentially lowered through the first positive osmosis treatment unit and the second positive osmosis treatment unit, thereby improving the efficiency of the reverse osmosis treatment unit.

또한, 역세정 처리부로 정삼투막에 부착되는 해수 내 오염물질을 제거하여 제2정삼투 처리부에서의 정삼투 처리의 효율성을 향상시킬 수 있는 효과가 있다.In addition, there is an effect that the efficiency of the forward osmosis treatment in the second forward osmosis treatment unit can be improved by removing contaminants in the seawater adhering to the forward osmosis membrane with the backwash treatment unit.

또한, 깊이조절부로 인하여 제2정삼투 처리부의 설치 깊이를 조절하여 수압을 조정하고 제2정삼투 처리부에서의 정삼투 처리 시간을 조절할 수 있는 효과가 있다. In addition, since the depth adjusting part adjusts the installation depth of the second positive osmosis treatment part, it is possible to adjust the water pressure and adjust the positive osmosis treatment time in the second positive osmosis treatment part.

또한, 광생물 반응부로 인하여 광생물의 광합성 반응으로 원수에 존재하는 오염물질을 제거할 수 있는 효과가 있다.In addition, there is an effect that the pollutants existing in the raw water can be removed by the photosynthetic reaction of the photobiological due to the photobioreactor.

또한, 공기주입펌프부로 인하여 광생물의 원수에 존재하는 오염물질 제거 공정을 활성화시킬 수 있는 효과가 있다.Also, the air injection pump unit can activate the pollutant removal process in the raw water of photobioreactors.

도 1은 본 발명의 일 실시예에 따른 정삼투-역삼투 복합 수처리 시스템을 개략적으로 도시한 도면이다.
도 2는 본 발명의 일 실시예에 따른 제2정삼투 처리부에서 해수가 공급용액으로 유입되는 상태를 도시한 도면이다.
도 3은 역세정 처리부에 의한 역세정 상태를 개략적으로 도시한 도면이다.
도 4는 깊이조절부에 의해 제2정삼투 처리부의 깊이가 조절되는 상태를 도시한 도면이다.FIG. 1 is a schematic view illustrating a combined osmosis-reverse osmosis water treatment system according to an embodiment of the present invention.
FIG. 2 is a view showing a state where seawater flows into a supply solution in a second forward osmosis treatment unit according to an embodiment of the present invention.
Fig. 3 is a view schematically showing a backwash state by the backwash processing unit. Fig.
4 is a view showing a state in which the depth of the second positive osmotic part is adjusted by the depth adjusting part.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 정삼투-역삼투 복합 수처리 시스템의 일 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. Further, terms to be described below are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시예에 따른 정삼투-역삼투 복합 수처리 시스템을 개략적으로 도시한 도면이다. 도 2는 본 발명의 일 실시예에 따른 제2정삼투 처리부에서 해수가 공급용액으로 유입되는 상태를 도시한 도면이다. 도 3은 역세정 처리부에 의한 역세정 상태를 개략적으로 도시한 도면이다. 도 4는 깊이조절부에 의해 제2정삼투 처리부의 깊이가 조절되는 상태를 도시한 도면이다.FIG. 1 is a schematic view illustrating a combined osmosis-reverse osmosis water treatment system according to an embodiment of the present invention. FIG. 2 is a view showing a state where seawater flows into a supply solution in a second forward osmosis treatment unit according to an embodiment of the present invention. Fig. 3 is a view schematically showing a backwash state by the backwash processing unit. Fig. 4 is a view showing a state in which the depth of the second positive osmotic part is adjusted by the depth adjusting part.

도 1 내지 도 4를 참조하면, 본 발명의 일 실시예에 따른 정삼투-역삼투 복합 수처리 시스템(1)은, 제1정삼투 처리부(100), 역삼투 처리부(200), 제2정삼투 처리부(300), 역세정 처리부(400), 깊이조절부(500), 광생물 반응부(600), 공기주입펌프부(700)를 포함한다.1 to 4, a hydro-osmosis-reverse osmosis composite water treatment system 1 according to an embodiment of the present invention includes a first positive osmosis treatment unit 100, a reverse osmosis treatment unit 200, And includes a processing unit 300, a backwash processing unit 400, a depth adjusting unit 500, a photo bioreactive unit 600, and an air injection pump unit 700.

도 1를 참조하면, 본 발명의 일 실시예에 따른 제1정삼투 처리부(100)는 전단(도 1 기준 좌측)으로 유입되는 정삼투 공급용액은 농축되어 정삼투 처리수로, 유입되는 정삼투 유도용액은 희석되어 정삼투 희석 유도용액으로 배출되도록 정삼투 처리한다. 본 명세서에서 전단은 유입 측을, 후단은 배출 측을 의미한다.Referring to FIG. 1, the first osmotic treatment unit 100 according to an embodiment of the present invention includes a forward osmosis supply solution introduced into a front end (left side in FIG. 1) The induction solution is diluted and subjected to a positive osmosis treatment to be discharged into a positive osmotic dilution inducing solution. In this specification, the front end means the inflow side and the rear end means the discharge side.

제1정삼투 처리부(100)에서는 유입되는 유체, 구체적으로 정삼투 공급용액, 정삼투 유도용액의 삼투압 차를 이용한 정삼투 처리가 행해진다. In the first forward osmosis treatment unit 100, the forward osmosis treatment is performed using the osmotic pressure difference of the inflowing fluid, specifically, the osmosis supply solution and the osmosis induction solution.

본 발명에서 정삼투 공급용액은 원수(L)일 수 있고, 뒤에 설명할 광생물 반응부(600)에 의해 원수(L)의 오염원이 1차적으로 제거된 용액일 수 있다. 원수(L)는 일반적으로 처리를 위한 하수 등일 수 있다.In the present invention, the quasi-osmotic supply solution may be raw water (L), or may be a solution in which the source of raw water (L) is primarily removed by the photobioreactor (600) described later. The raw water L may generally be sewage or the like for treatment.

정삼투 유도용액은 한정하지 않으나, 삼투압 차에 의한 정삼투 처리가 행해질 수 있도록 정삼투 공급용액보다는 농도가 높은 용액이어야 한다.The osmotic induction solution is not limited, but it should be a higher concentration solution than the osmosis supply solution so that the osmotic treatment by the osmotic pressure difference can be performed.

예를 들어 정삼투 유도용액은 NaCl 또는 그 외 MgCl2 및 NH4HCO3 등의 수용액으로서 정삼투 공급용액보다 높은 농도를 갖는 유체일 수 있는 등 다양한 변형 실시가 가능하다.For example, the positive osmotic induction solution may be a fluid having a concentration higher than that of the positive osmotic supply solution as an aqueous solution such as NaCl or other MgCl 2 and NH 4 HCO 3 .

도 1을 참조하면, 제1정삼투 처리부(100)의 전단에는 정삼투 공급용액이 유동되는 정삼투 공급용액 유입라인(L30) 및 정삼투 유도용액 유입라인(L40)이 연결된다. 정삼투 공급용액 유입라인(L30)은 뒤에 설명할 광생물 반응부(600)의 후단과 연결될 수 있다.Referring to FIG. 1, a forward osmosis feed solution inflow line L30 and a forward osmosis induction solution inflow line L40 are connected to the front end of the first positive osmosis treatment unit 100, respectively. The forward osmosis feed solution inlet line L30 may be connected to the downstream end of the photobioreactor 600 to be described later.

도 1을 참조하면, 본 발명의 일 실시예에 따른 제1정삼투 처리부(100)의 후단에는 정삼투 처리수가 배출되는 정삼투 처리수 유출라인(L50) 및 정삼투 희석 유도용액 유출라인(L60)이 연결된다.Referring to FIG. 1, a forward osmotic treatment water outlet line L50 and a positive osmosis dilution solution outlet line L60, through which the forward osmosis treatment water is discharged, are connected to a rear end of the first forward osmosis treatment unit 100 according to an embodiment of the present invention. ).

제1정삼투 처리부(100)로 유입된 정삼투 공급용액 및 정삼투 유도용액은 정삼투 처리를 거치게 된다. 이때 정삼투 유도용액은 정삼투 공급용액에 비해 높은 삼투압을 가진 용액이므로, 정삼투 공급용액에 포함된 물(W)은 제1정삼투 처리부(100) 내의 반투막을 통과하여 정삼투 유도용액 측으로 유동된다.The forward osmosis supply solution and the forward osmosis induction solution introduced into the first forward osmosis treatment unit 100 are subjected to a forward osmosis treatment. In this case, since the forward osmosis induction solution is a solution having a higher osmotic pressure than the forward osmosis feed solution, the water W contained in the forward osmosis feed solution passes through the semipermeable membrane in the first forward osmosis treatment section 100, do.

이로 인하여 정삼투 유도용액은 제1정삼투 처리부(100)로 유입되기 전에 비해 희석되고, 정삼투 공급용액은 제1정삼투 처리부(100)로 유입되기 전에 비하여 농축된다. 제1정삼투 처리부(100)로 인하여 정삼투 처리된 정삼투 공급용액은 정삼투 처리수 유출라인(L50)을 통하여 정삼투 처리수로서 유출되고, 정삼투 유도용액은 정삼투 희석 유도용액 유출라인(L60)을 통해 정삼투 희석 유도용액으로서 유출된다.Therefore, the forward osmosis inducing solution is diluted before being introduced into the first forward osmosis treatment unit 100, and the forward osmotic supply solution is concentrated before entering the first forward osmosis treatment unit 100. The forward osmosis treatment solution that has been subjected to the forward osmosis treatment by the first forward osmosis treatment unit 100 flows out through the forward osmosis treatment water outflow line L50 as the forward osmosis treatment water, (L60) as a positive osmotic dilution inducing solution.

본 발명에서는 제1정삼투 처리부(100)가 정삼투막(110)을 포함하는 1개의 모듈로 구성된다. 그러나 이에 한정하는 것은 아니고, 제1정삼투 처리부(100)로 유입되는 정삼투 공급용액의 회수율을 극대화할 수 있도록 복수 개가 구비되어 직렬로 연결될 수 있는 등 다양한 변형 실시가 가능하다.In the present invention, the first forward osmosis treatment unit 100 is composed of one module including the osmosis membrane 110. However, the present invention is not limited thereto, and it is possible to provide a plurality of osseous feed solutions to the first forward osmosis treatment unit 100 so that the recovery rate of the osmosis supply solution can be maximized.

도 1을 참조하면, 본 발명의 일 실시예에 따른 역삼투 처리부(200)는 제1정삼투 처리부(100)의 후단에 연결되는 것으로, 전단으로 정삼투 희석 유도용액이 유입되고, 역삼투 처리에 의해 역삼투 처리수 및 역삼투 농축수로서 후단으로 각각 배출된다.Referring to FIG. 1, the reverse osmosis treatment unit 200 according to an embodiment of the present invention is connected to the rear end of the first forward osmosis treatment unit 100, and the forward osmosis dilution induction solution flows into the front end, Reverse osmosis treated water and reverse osmosis concentrated water, respectively.

역삼투 처리부(200)는 정삼투 희석 유도용액 유출라인(L60)과 연결되며, 제1정삼투 처리부(100)에서 유출되는 정삼투 희석 유도용액이 유입된다. 정삼투 희석 유도용액은 고압의 펌프(도면 미도시)를 통하여 역삼투 처리부(200)로 유입될 수 있다.The reverse osmosis treatment unit 200 is connected to the positive osmotic dilution inducing solution outflow line L60, and the positive osmotic dilution inducing solution flowing out of the first positive osmosis treatment unit 100 flows. The positive osmotic dilution inducing solution may be introduced into the reverse osmosis treatment unit 200 through a high-pressure pump (not shown).

도 1을 참조하면, 역삼투 처리에 의하여 역삼투막(210)을 통과한 물(W)은 역삼투 처리수로서 역삼투 처리부(200)의 후단에 연결된 역삼투 처리수 배출라인(L70)을 통하여 정삼투-역삼투 복합 수처리 시스템(1) 외부로 배출된다.1, the water W having passed through the reverse osmosis membrane 210 by reverse osmosis is passed through a reverse osmosis treated water discharge line L70 connected to the rear end of the reverse osmosis treatment unit 200 as reverse osmosis treatment water, And is discharged outside the osmosis-reverse osmosis composite water treatment system 1.

이와 달리 역삼투막(210)을 통과하지 못한 정삼투 희석 유도용액은 역삼투 농축수로서 역삼투 처리부(200)에 연결된 역삼투 농축수 유출라인(L80)을 통해 뒤에 설명할 제2정삼투 처리부(300)에 유입된다.In contrast, the normal osmotic dilution induction solution that has not passed through the reverse osmosis membrane 210 passes through the reverse osmosis concentrated water outlet line L80 connected to the reverse osmosis treatment unit 200 as the reverse osmosis concentrated water, .

도 1을 참조하면, 본 발명의 일 실시예에 따른 제2정삼투 처리부(300)는 해수(S)에 침지되는 것으로, 역삼투 처리부(200)의 배출 측에 연결되고, 역삼투 농축수가 유입되어 정삼투 처리에 의해 정삼투 유도 용액으로서 후단으로 배출된다. Referring to FIG. 1, a second forward osmosis treatment unit 300 according to an embodiment of the present invention is immersed in seawater S and is connected to a discharge side of a reverse osmosis treatment unit 200, And is discharged to the rear end as a positive osmotic induction solution by a positive osmosis treatment.

구체적으로 역삼투 농축수 유출라인(L80)이 제2정삼투 처리부(300)의 전단(도 1 기준 우측)에 연결되고, 별도의 공급용액 유입라인 없이 정삼투막(310)을 통해 해수(S)에 포함된 물(W)이 정삼투막(310)을 통과하여 역삼투 농축수에 공급된다.Specifically, the reverse osmosis concentrated water discharge line L80 is connected to the front end (reference right side in FIG. 1) of the second positive osmotic treatment unit 300, and the seawater S Is supplied to the reverse osmosis concentrated water through the osmosis membrane (310).

도 2를 참조하면, 역삼투 농축수는 해수(S)에 비해 높은 삼투압을 가진 용액이기 때문에 해수(S)에 포함된 물(W)이 제2정삼투 처리부(300) 내의 정삼투막(310)을 통과하여 역삼투 농축수 측으로 유동된다.2, since the reverse osmosis concentrated water is a solution having a higher osmotic pressure than the seawater S, the water W contained in the seawater S flows through the osmosis membrane 310 in the second positive osmotic treatment unit 300 And flows to the reverse osmosis concentrated water side.

이로 인하여 역삼투 농축수는 제2정삼투 처리부(300)에 유입되기 전에 비해 해수(S) 수준으로 희석된다. 역삼투 농축수는 제2정삼투 처리부(300)에서 정삼투 처리를 통해 정삼투 유도용액으로 유출되고, 정삼투 유도용액 유입라인(L40)을 통해 다시 제1정삼투 처리부(100)의 전단으로 유입된다.Thus, the reverse osmosis concentrated water is diluted to the level of seawater (S) before entering the second forward osmosis treatment unit (300). The reverse osmosis concentrated water flows out to the forward osmosis induction solution through the forward osmosis treatment in the second forward osmosis treatment part 300 and flows to the forward end of the first forward osmosis treatment part 100 through the forward osmosis induction solution inflow line L40 ≪ / RTI >

도 1을 참조하면, 제2정삼투 처리부(300)에 해수(S)가 공급 용액으로 유입됨으로 인하여, 정삼투 처리를 위한 별도의 공급용액이 요구되지 않는 효과가 있다.Referring to FIG. 1, since the seawater S flows into the second positive osmosis treatment unit 300 as a supply solution, there is an effect that a separate supply solution for the positive osmosis treatment is not required.

이에 더하여 역삼투 농축수와의 농도 차이로 인해 역삼투 농축수를 다시 해수(S) 수준으로 희석시켜 제1정삼투 처리부(100)로 공급토록 하고, 농축수를 배출하지 않고 재순환시켜 농축수 처리 공정이 요구되지 않으며, 농축수 처리 공정으로 인한 비용이 발생되지 않도록 한다. In addition, due to the difference in concentration with the reverse osmosis concentrated water, the reverse osmosis concentrated water is diluted again to the level of sea water (S) and supplied to the first positive osmotic treatment unit 100, and the concentrated water is recycled without discharging the concentrated water No process is required, and no costs are incurred by the concentrated water treatment process.

도 3을 참조하면, 본 발명의 일 실시예에 따른 역세정 처리부(400)는 역삼투 처리부(200)에서 배출되는 역삼투 처리수를 제2정삼투 처리부(300)로 유입시킨다.3, the backwash processing unit 400 according to an embodiment of the present invention introduces the reverse osmosis treated water discharged from the reverse osmosis treatment unit 200 into the second forward osmosis treatment unit 300. [

구체적으로 역삼투 처리수 배출라인(L70)을 통해 배출되는 역삼투 처리수의 일부를 밸브(도면 미도시)를 통해 역삼투 처리수 공급라인(L70)으로 유동되도록 하고, 역삼투 농축수 유출라인(L80)에 투입한다. Specifically, a part of the reverse osmosis treated water discharged through the reverse osmosis treated water discharge line L70 is caused to flow to the reverse osmosis treated water supply line L70 through a valve (not shown), and the reverse osmosis concentrated water discharge line (L80).

도 3을 참조하면, 이때 역삼투 처리수는 오염원이 제거된 용액으로 해수(S)에 비해 농도가 낮기 때문에 제2정삼투 처리부(300)에 유입되어 역삼투 농축수와 합쳐지고, 역삼투 처리수와 역삼투 농축수의 혼합용액은 해수(S)에 비해 농도가 낮아 혼합용액에 포함된 물(W)이 제2정삼투 처리부(300)의 정삼투막(310)을 통과하여 해수(S) 측으로 유동된다.3, since the reverse osmosis treated water has a lower concentration than the seawater S, it flows into the second forward osmosis treatment unit 300 and is combined with the reverse osmosis concentrated water, The mixed solution of the water and the reverse osmosis concentrated water has a lower concentration than the seawater S so that the water W contained in the mixed solution passes through the osmosis membrane 310 of the second forward osmosis treatment unit 300, .

혼합용액에 포함된 물(W)이 정삼투막(310)을 통과하여 해수(S) 측으로 유동됨으로 인해 제2정삼투 처리부(300)의 정삼투막(310)에서 해수(S) 내 존재하는 오염물질 등 이물질(5)로 인해 발생할 수 있는 막 오염 현상을 방지할 수 있는 효과가 있다.The water W contained in the mixed solution flows into the seawater S through the osmosis membrane 310 and flows into the seawater S in the osmosis membrane 310 of the second forward osmosis treatment unit 300 It is possible to prevent a film contamination phenomenon that may occur due to foreign matter 5 such as pollutants.

도 4를 참조하면, 본 발명의 일 실시예에 따른 깊이조절부(500)는 제2정삼투 처리부(300)에 결합되는 것으로, 제2정삼투 처리부(300)의 깊이가 조절되도록 외부로부터 동력을 전달받아 구동된다.Referring to FIG. 4, the depth adjusting unit 500 according to an embodiment of the present invention is coupled to the second positive osmosis unit 300, and is configured to adjust the depth of the second positive osmosis unit 300, And is driven.

깊이조절부(500)는 해수(S) 내에 설치되고 제2정삼투 처리부(300)와 결합된다. 깊이조절부(500)가 구동됨에 따라 제2정삼투 처리부(300)의 설치 위치가 조절된다. The depth adjusting unit 500 is installed in the seawater S and is coupled to the second forward osmosis treatment unit 300. As the depth adjusting unit 500 is driven, the installation position of the second normal osmotic treatment unit 300 is adjusted.

깊이조절부(500)에 연결되는 역삼투 농축수 유출라인(L80) 및 정삼투 유도용액 유입라인(L40)은 제2정삼투 처리부(300)가 승강 이동됨에 따라 함께 이동되도록 형상 변형 가능한 재질로 형성된다.The reverse osmosis concentrated water inflow line L80 and the osmosis induction solution inflow line L40 connected to the depth adjusting unit 500 are made of a material that can be deformed to move together as the second positive osmosis treatment unit 300 is lifted and moved .

본 발명에서는 해수(S) 내에 가이드레일부(510)가 설치되고, 제2정삼투 처리부(300)가 가이드레일부(510)에 결합되어 가이드레일부(510)의 구동에 따라 상하로 이동되며 설치 위치가 변경되나, 이에 한정하는 것은 아니고 외부로부터 동력을 전달받아 제2정삼투 처리부(300)의 설치 위치를 이동시키도록 다양한 변형 실시가 가능하다.In the present invention, the guide rail 510 is installed in the seawater S, the second forward osmosis treatment unit 300 is coupled to the guide rail 510, and the guide rail 510 is moved up and down But the present invention is not limited thereto. Various modifications may be made to move the installation position of the second forward osmosis treatment unit 300 by receiving power from the outside.

제2정삼투 처리부(300)의 설치 위치가 해수(S) 내에서 깊어질수록 수압이 높아지고, 깊이에 따라 발생되는 자수압으로 제2정삼투 처리부(300) 내에서 행해지는 정삼투 공정의 효율성을 향상시킬 수 있다.The water pressure increases as the installation position of the second normal osmotic treatment unit 300 deepens in the seawater S and the efficiency of the normal osmotic process performed in the second normal osmotic treatment unit 300 with the self- Can be improved.

도 1 내지 도 4를 참조하면, 본 발명의 일 실시예에 따른 광생물 반응부(600)는 유입 측으로 원수(L)가 원수 유입라인(L10)을 통해 유입되고, 광생물(B)이 배양되며, 광생물(B)의 광합성 반응에 의해 처리된 원수(L)가 정삼투 공급 용액으로서 배출 측으로 배출된다. 광생물 반응부(600)는 제1정삼투 처리부(100)에 연결된다.1 to 4, a photobioreactor 600 according to an embodiment of the present invention includes a photobioreactor 600 for receiving raw water L through a raw water inflow line L10 on the inflow side, And the raw water L processed by the photosynthesis reaction of the photobiesthin (B) is discharged to the discharge side as the positive osmotic supply solution. The photobioreactor 600 is connected to the first forward osmosis unit 100.

본 발명에서 광생물(B)은 광합성을 하는 미생물 또는 조류를 의미하고, 태양광에 의해 광생물 반응부(600) 내에서 광생물(B)은 원수(L) 내 존재하는 유기물과 대기 중 CO2를 흡수하고, 광합성 반응을 통해 O2를 발생시킨다. In the present invention, the photobiore (B) means a microorganism or alga that performs photosynthesis, and the photobiore (B) in the photobioreactor (600) by the sunlight is an organic matter existing in the raw water (L) 2 , and generates O 2 through the photosynthesis reaction.

구체적으로 광생물 반응부(600) 내에서 광합성 조류 등 광생물(B)이 배양되고, 대기 중 존재하는 CO2를 저감시키고, 원수(L)에 포함된 오염물질을 분해하여 광생물(B)이 성장하며, 광생물(B)의 활동으로 O2가 생산되고 CO2가 저감된다.Specifically, the photobioreactor (B) such as a photosynthetic bird is cultivated in the photobioreactor (600), CO 2 present in the atmosphere is reduced, the pollutant contained in the raw water (L) (B), O 2 is produced and CO 2 is reduced.

생산된 O2로 인하여 광생물 반응부(600)의 원수(L) 내 오염물질 제거 효율을 증대시키고, 정삼투-역삼투 복합 수처리 시스템(1)의 유지 및 세정에 활용될 수 있는 효과가 있다.The produced O 2 can increase the efficiency of removing pollutants in the raw water L of the photobioreactor 600 and can be utilized for maintenance and cleaning of the purified osmosis-reverse osmosis complex water treatment system 1 .

이로 인하여 오염물질이 제거된 원수(L)가 정삼투 공급용액으로서 정삼투 공급용액 유입라인(L30)으로 제1정삼투 처리부(100)에 유입되도록 한다.Thereby allowing the raw water L from which contaminants have been removed to flow into the first positive osmotic treatment unit 100 as a positive osmotic supply solution through the positive osmotic supply solution inflow line L30.

본 발명의 일 실시예에 따른 광생물 반응부(600)를 통하여 광생물(B)을 이용해 하수 등 원수(L)의 오염물질을 제거하고, 광생물(B)을 활용하여 정삼투-역삼투 복합 수처리 시스템(1)에 사용되는 에너지원을 생산할 수 있는 효과가 있다.The photobioreactor 600 according to an embodiment of the present invention removes contaminants in the raw water L from the sewage water using the photobioreactor B, There is an effect that the energy source used in the complex water treatment system 1 can be produced.

도 1 내지 도 4를 참조하면, 본 발명의 일 실시예에 따른 공기주입펌프부(700)는 광생물 반응부(600)에 설치되는 것으로, 광생물 반응부(600)에 공기를 주입한다. 공기는 고압의 펌프(P700)로 공기 주입라인(L20)을 통해 공급된다.Referring to FIGS. 1 to 4, the air injection pump unit 700 according to an embodiment of the present invention is installed in the photo bioreactive unit 600 and injects air into the photoactive bioreactor 600. The air is supplied to the high-pressure pump P700 through the air injection line L20.

공기주입펌프부(700)는 외부로부터 동력을 제공받아 구동되고, 광생물 반응부(600) 내에서 광생물(B)의 반응을 촉진하여 원수(L) 내 오염물질 제거의 효율성을 향상시키는 효과가 있다.The air injection pump unit 700 is driven by external power and promotes the reaction of the photobiore B in the photobioreactor 600 to improve the efficiency of contaminant removal in the raw water L .

이하, 본 발명의 일 실시예에 따른 정삼투-역삼투 복합 수처리 시스템(1)의 작동원리 및 효과를 설명한다.Hereinafter, the principle and effect of the operation of the forward osmosis-reverse osmosis composite water treatment system 1 according to an embodiment of the present invention will be described.

도 1 내지 도 4를 참조하면, 본 발명의 일 실시예에 따른 정삼투-역삼투 복합 수처리 시스템(1)은 제1정삼투 처리부(100), 역삼투 처리부(200), 제2정삼투 처리부(300), 역세정 처리부(400), 깊이조절부(500), 광생물 반응부(600), 공기주입펌프부(700)를 포함한다.1 to 4, a hydro-osmosis-reverse osmosis composite water treatment system 1 according to an embodiment of the present invention includes a first positive osmosis treatment unit 100, a reverse osmosis treatment unit 200, A back washing treatment unit 400, a depth adjusting unit 500, a photobiological reaction unit 600, and an air injection pump unit 700. [

정삼투 공급용액 및 정삼투 유도용액이 각각 정삼투 공급용액 유입라인(L30), 정삼투 유도용액 유입라인(L40)을 통해 제1정삼투 처리부(100)로 유입된다. The forward osmotic supply solution and the osmotic induction solution are respectively introduced into the first positive osmosis treatment unit 100 through the positive osmotic supply solution inflow line L30 and the positive osmotic induction solution inflow line L40.

정삼투 공급용액은 광생물 반응부(600)를 통해 1차적으로 오염물질이 제거된 원수(L)로 형성될 수 있다. 원수(L)는 원수 유입라인(L10)을 통해 광생물(B) 반응기에 유입되고, 광생물(B) 반응기 내에서 배양되는 광생물(B)은 질소와 인 등을 제거함과 동시에 광합성 반응으로 대기 중 CO2를 저감시키고 O2를 생산한다.The positive osmotic supply solution may be formed of raw water L from which the contaminant is primarily removed through the photobioreactor 600. The raw water L is introduced into the photobioreactor B through the raw water inflow line L10 and the photobioreactor B cultivated in the photobioreactor B removes nitrogen and phosphorus, Reduces atmospheric CO 2 and produces O 2 .

이로 인하여 광생물 반응부(600)에 존재하는 원수(L)의 오염물질 제거와 광생물(B)의 생산이 동시에 진행되는 효과가 있다.Thereby, contaminant removal of the raw water L present in the photobioreactor 600 and production of the photobiore B are simultaneously performed.

도 1 내지 도 4를 참조하면, 공기주입펌프부(700)가 광생물 반응부(600)에 설치됨으로 인하여 광생물 반응부(600)에 공기를 주입하고, 이로 인해 광생물(B)의 반응을 촉진하여 원수(L) 내 오염물질 제거 효율성을 향상시킬 수 있는 효과가 있다.1 to 4, since the air injection pump unit 700 is installed in the photo-bioreactive unit 600, air is injected into the photo-bioreactive unit 600, So that the efficiency of removing pollutants in the raw water L can be improved.

광생물 반응부(600)에 의해 1차적으로 오염물질이 제거된 원수(L)는 정삼투 공급용액으로서 정삼투 공급용액 유입라인(L30)을 통해 제1정삼투 처리부(100)로 유입된다. The raw water L from which the contaminant has been primarily removed by the photobiological reaction unit 600 flows into the first positive osmotic treatment unit 100 through the positive osmotic supply solution inflow line L30 as the positive osmotic supply solution.

제1정삼투 처리부(100)에는 정삼투 유도용액이 함께 유입되며 정삼투 공급용액의 농도가 해수(S)보다 낮음으로 인하여, 제2정삼투 처리부(300)를 통해 해수(S) 수준으로 희석된 정삼투 유도용액과의 농도 차이가 발생된다.The first positive osmotic treatment unit 100 is diluted to the level of the seawater S through the second positive osmosis treatment unit 300 because the positive osmotic induction solution is flowed together and the concentration of the positive osmotic supply solution is lower than the seawater S, A difference in concentration between the solution and the resulting osmosis inducing solution occurs.

제1정삼투 처리부(100) 내 정삼투막(110)을 통과하여 정삼투 공급용액에 포함된 물(W)이 정삼투 유도용액으로 공급되어 정삼투 유도용액을 희석시킨다.The water W contained in the positive osmotic supply solution is supplied to the positive osmotic induction solution through the osmosis membrane 110 in the first positive osmotic treatment unit 100 to dilute the positive osmosis induction solution.

물(W)이 제거된 정삼투 공급용액은 정삼투 처리수로서 정삼투-역삼투 복합 수처리 시스템(1)의 외부로 배출된다. 농축된 정삼투 처리수는 비료, 바이오 디젤 등 바이오 연료, 에너지 자원 등으로 활용이 가능하다.The purified osmosis supply solution from which the water W is removed is discharged as purified osmosis treatment water to the outside of the purified osmosis-reverse osmosis composite water treatment system 1. Concentrated osmosis treated water can be used for biofuels such as fertilizer, biodiesel, and energy resources.

제1정삼투 처리부(100)에서 희석된 정삼투 유도용액은 정삼투 희석 유도용액으로서 역삼투 처리부(200)에 공급된다.The positive osmotic induction solution diluted in the first positive osmotic treatment unit 100 is supplied to the reverse osmosis treatment unit 200 as a positive osmotic dilution inducing solution.

역삼투 처리부(200)를 통해 정삼투 희석 유도용액에 포함된 물(W)은 역삼투막(210)을 통과하여 오염물질이 제거된 순수한 상태의 역삼투 처리수로서 정삼투-역삼투 복합 수처리 시스템(1) 외부로 배출된다.The water W contained in the purified osmotic dilution inducing solution through the reverse osmosis treatment unit 200 is passed through the reverse osmosis membrane 210 to remove contaminants from the reverse osmosis treatment water, 1).

도 1 내지 도 4를 참조하면, 역삼투 처리부(200)를 통해 물(W)이 제거된 역삼투 농축수는 역삼투 농축수 유출라인(L80)을 통해 제2정삼투 처리부(300)에 유도용액으로 공급된다.1 to 4, the reverse osmosis concentrated water from which the water W is removed through the reverse osmosis treatment unit 200 is introduced into the second forward osmosis treatment unit 300 through the reverse osmosis concentrated water discharge line L80 Solution.

역삼투 농축수는 해수(S)보다 농도가 높도록 농축되고, 제2정삼투 처리부(300)가 해수(S)에 침지되어 설치됨으로 인하여 중공사 또는 평막 형태의 정삼투막(310)을 통해 역삼투 농축수보다 농도가 낮은 해수(S)에 포함된 물(W)이 역삼투 농축수를 희석시킨다.The reverse osmosis concentrated water is concentrated to have a higher concentration than the seawater S and the second normal osmotic treatment unit 300 is immersed in the seawater S to be installed thereon through the osmosis membrane 310 in the form of hollow fiber or flat membrane Water (W) contained in seawater (S) having lower concentration than reverse osmosis concentrated water dilutes reverse osmosis concentrated water.

제2정삼투 처리부(300)로 인하여 제1정삼투 처리부(100)와 달리 별도의 공급용액의 유입이 요구되지 않고 해수(S)와 역삼투 농축수의 농도 차에 의해 해수(S)의 물(W)이 역삼투 농축수를 희석시킬 수 있는 효과가 있다.Unlike the first positive osmotic treatment unit 100, the second positive osmotic treatment unit 300 does not require the supply of the separate supply solution, and the water of the seawater S is removed by the concentration difference of the seawater S and the reverse osmosis concentrated water, (W) can dilute the reverse osmosis concentrated water.

제2정삼투 처리부(300)가 해수(S) 내에 침지됨으로 인하여 해수(S)의 난류 또는 파동이 해수(S)를 순환시켜 농축 농도 분극 현상이 발생되는 것을 방지할 수 있는 효과가 있다.The second normal osmotic treatment unit 300 is immersed in the seawater S to circulate the seawater S through the turbulence or wave of the seawater S to prevent concentration concentration polarization.

제2정삼투 처리부(300)에서 해수(S)와 역삼투 농축수 간 정삼투 처리과정은 해수(S)와 역삼투 농축수 간의 농도 평형이 진행될 때까지 진행된다. 이 과정에서 해수(S) 내 존재하는 오염물질이 정삼투막(310)을 막아 해수(S)에 포함된 물(W)의 이동을 저해하여 정삼투 처리 성능을 저감시키게 된다.In the second forward osmosis treatment unit 300, the forward osmosis treatment process between the seawater S and the reverse osmosis concentrated water proceeds until the concentration equilibrium between the seawater S and the reverse osmosis concentrated water proceeds. In this process, contaminants present in the seawater S block the osmosis membrane 310 to inhibit the movement of the water W contained in the seawater S, thereby reducing the performance of the osmosis treatment.

도 1 내지 도 4를 참조하면, 본 발명의 일 실시예에 따른 역세정 처리부(400)로 인하여 순수 상태의 역삼투 처리수를 제2정삼투 처리부(300)로 공급하고, 역삼투 농축수와 역삼투 처리수의 혼합용액의 농도가 해수(S)보다 낮게 형성됨으로 인하여 혼합용액에 포함된 물(W)이 정삼투막(310)을 통해 해수(S)로 배출되어 정삼투막(110)에 부착된 해수(S) 내 오염물질을 제거할 수 있도록 한다.Referring to FIGS. 1 to 4, the reverse osmosis treatment unit 400 according to an embodiment of the present invention supplies pure osmosis treated water to the second forward osmosis treatment unit 300, The water W contained in the mixed solution is discharged to the seawater S through the osmosis membrane 310 to form the osmosis membrane 110, So that contaminants in the seawater S adhered to the water can be removed.

도 1, 도 4를 참조하면, 깊이조절부(500)로 인하여 제2정삼투 처리부(300)의 깊이가 조절되며, 제2정삼투 처리부(300)의 깊이가 깊어질수록 정삼투 처리 시 수압이 증가되어 해수(S)에 포함된 물(W)이 정삼투막(310)을 통해 역삼투 농축수를 희석시키는 후단 정삼투 처리의 효율성을 향상시키고, 제2정삼투 처리부(300)의 처리 시간을 단축 시킬 수 있으며, 자연적으로 발생하는 수압을 활용하여 가압형 정삼투 공정으로도 활용이 가능한 효과가 있다.1 and 4, the depth of the second positive osmotic treatment unit 300 is adjusted by the depth adjusting unit 500, and as the depth of the second positive osmotic treatment unit 300 is deepened, The water W contained in the seawater S improves the efficiency of the posterior osmotic treatment for diluting the reverse osmosis concentrated water through the osmosis membrane 310 and improves the efficiency of the posterior osmotic treatment for the treatment of the second normal osmosis treatment part 300 It is possible to shorten the time and utilize naturally occurring water pressure to be used as a pressurized positive osmosis process.

제2정삼투 처리부(300)에 의해 2차적으로 희석된 역삼투 농축수는 해수(S) 수준으로 희석되고, 정삼투 유도용액으로 유출되어 정삼투 유도용액 유입라인(L40)으로 제1정삼투 처리부(100)에 재순환되며 활용된다. The second reverse osmosis concentrated water diluted by the second forward osmosis treatment unit 300 is diluted to the level of seawater S and flows out into the forward osmosis induction solution to be introduced into the forward osmosis induction solution inflow line L40, And is recycled and utilized in the processing unit 100.

이로 인하여 역삼투 농축수를 수처리 시스템 외부로 배출하는 공정이 요구되지 않고, 역삼투 농축수 처리에 따른 비용도 발생되지 않는 효과가 있다.Therefore, there is no need for a process of discharging the reverse osmosis concentrated water to the outside of the water treatment system, and there is no cost incurred by the reverse osmosis concentrated water treatment.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

1: 정삼투-역삼투 복합 수처리 시스템 5: 이물질
W: 물 L: 원수
S: 해수 B: 광생물
100: 제1정삼투 처리부 110, 310: 정삼투막
200: 역삼투 처리부 210: 역삼투막
300: 제2정삼투 처리부 400: 역세정 처리부
500: 깊이조절부 510: 가이드레일부
600: 광생물 반응부 700: 공기주입펌프부1: Forward Osmosis - Reverse Osmosis Complex Water Treatment System 5: Foreign matter
W: water L: enemy
S: Sea water B: Photobiology
100: first forward osmosis treatment unit 110, 310:
200: reverse osmosis treatment unit 210: reverse osmosis membrane
300: second forward osmosis treatment unit 400: backwash treatment unit
500: depth adjusting section 510: guide rail section
600: photobiological reaction unit 700: air injection pump unit

Claims (6)

유입되는 정삼투 공급용액이 농축되어 정삼투 처리수로 배출되고, 유입되는 정삼투 유도용액이 희석되어 정삼투 희석 유도용액으로 배출되도록, 상기 정삼투 공급용액과 상기 정삼투 유도용액을 정삼투 처리하는 제1정삼투 처리부;
상기 제1정삼투 처리부의 배출 측에 연결되고, 유입되는 상기 정삼투 희석 유도용액이 역삼투 처리수와 역삼투 농축수로 배출되도록 역삼투 처리하는 역삼투 처리부;
해수에 침지되고, 상기 역삼투 처리부의 배출 측에 연결되며, 유입되는 상기 역삼투 농축수가 희석되어 상기 정삼투 유도용액으로 배출되도록 정삼투 처리하는 제2정삼투 처리부;를 포함하고,
상기 정삼투 유도용액은 상기 제1정삼투 처리부의 유입 측과 연결되어 재순환되는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.
Wherein the forward osmosis supply solution is concentrated and discharged to the forward osmosis treatment water so that the forward osmosis induction solution is diluted and discharged to the induction solution for the osmosis dilution, A first forward osmotic treatment unit;
A reverse osmosis treatment unit connected to the discharge side of the first forward osmosis treatment unit and performing reverse osmosis treatment so that the introduced osmosis dilution inducing solution is discharged as reverse osmosis treated water and reverse osmosis concentrated water;
And a second positive osmosis treatment unit immersed in seawater and connected to a discharge side of the reverse osmosis treatment unit to perform positive osmotic treatment so that the incoming reverse osmosis concentrated water is diluted and discharged to the positive osmotic induction solution,
And the purified osmosis induction solution is connected to the inflow side of the first positive osmotic treatment unit and recycled.
제1항에 있어서,
상기 제2정삼투 처리부에는, 상기 역삼투 농축수가 희석되도록 해수가 유입되는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.
The method according to claim 1,
Reverse osmosis composite water treatment system according to claim 1, wherein seawater is introduced into the second forward osmosis treatment unit such that the reverse osmosis concentrated water is diluted.
제1항에 있어서,
상기 역삼투 처리부에서 배출되는 상기 역삼투 처리수를 상기 제2정삼투 처리부로 유입시켜 물을 해수 측으로 배출시키는 역세정 처리부;를 더 포함하는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.
The method according to claim 1,
Reverse osmosis water treatment system according to claim 1, further comprising: a reverse osmosis treatment unit for introducing the reverse osmosis treatment water discharged from the reverse osmosis treatment unit to the second positive osmosis treatment unit to discharge water to the sea water side.
제1항에 있어서,
상기 제2정삼투 처리부에 결합되고, 상기 제2정삼투 처리부의 깊이가 조절되는 깊이조절부;를 더 포함하는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.
The method according to claim 1,
Further comprising a depth controller coupled to the second forward osmosis treatment unit and having a depth controlled by the second forward osmosis treatment unit.
제1항에 있어서,
원수가 유입되고, 내부에서 광생물이 배양되며, 상기 광생물의 광합성 반응에 의해 처리된 상기 원수가 상기 정삼투 공급용액으로 배출되고, 상기 제1정삼투 처리부에 연결되는 광생물 반응부;를 더 포함하는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.
The method according to claim 1,
And a photo bioreactor connected to the first positive osmosis treatment unit, wherein the raw water treated by the photosynthetic reaction of the photo organism is discharged to the positive osmosis supply solution and the ozone is supplied to the first positive osmosis treatment unit Further comprising a reverse osmosis complex water treatment system.
제5항에 있어서,
상기 광생물 반응부에 설치되고, 상기 광생물 반응부에 공기를 주입하는 공기주입펌프부;를 더 포함하는 것을 특징으로 하는 정삼투-역삼투 복합 수처리 시스템.6. The method of claim 5,
Further comprising an air injection pump unit installed in the photobiological reaction unit and injecting air into the photobiological reaction unit.
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