KR20120114851A - High concentration wastewater treatment device by using apparatus for production of microalgae - Google Patents

High concentration wastewater treatment device by using apparatus for production of microalgae Download PDF

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KR20120114851A
KR20120114851A KR1020110032644A KR20110032644A KR20120114851A KR 20120114851 A KR20120114851 A KR 20120114851A KR 1020110032644 A KR1020110032644 A KR 1020110032644A KR 20110032644 A KR20110032644 A KR 20110032644A KR 20120114851 A KR20120114851 A KR 20120114851A
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wastewater
microalgae
cultivation bed
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production apparatus
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권일한
박종석
이학로
서재건
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재단법인 포항산업과학연구원
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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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00—Cultivation of seaweed or algae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
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    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/02—Photobioreactors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/12—Unicellular algae; Culture media therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • 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
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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Abstract

PURPOSE: An advanced treatment apparatus for wastewater using a micro-algae generating apparatus is provided to reduce the amount of greenhouse gas by using carbon dioxide in a micro-algae photosynthesis process. CONSTITUTION: An advanced treatment apparatus(100) includes a growing bed(110), a wastewater supplying part(130), and a light source part(150). A growing space is formed in the growing bed in order to grow micro-algae using wastewater. The wastewater supplying part supplies wastewater to the growing bed. The micro-algae in the growing bed are irradiated with light from the light source part. The growing bed is multiple-layered and slanted such that the wastewater flows through the growing bed. A plurality of protrusions is arranged at the growing bed to control the flow of the wastewater. The growing bed is made of a transparent material such that light transmits through the growing bed.

Description

미세조류 생산장치를 이용한 폐수 고도처리장치{HIGH CONCENTRATION WASTEWATER TREATMENT DEVICE BY USING APPARATUS FOR PRODUCTION OF MICROALGAE}High Wastewater Treatment System using Microalgae Production Equipment {HIGH CONCENTRATION WASTEWATER TREATMENT DEVICE BY USING APPARATUS FOR PRODUCTION OF MICROALGAE}

본 발명은 미세조류 생산장치를 이용한 폐수 고도처리장치에 관한 것이며, 더욱 상세하게는 식물공장방식의 미세조류 생산장치를 이용하여 환경친화적인 방법으로 폐수 속의 질소나 인 화합물을 제거하면서, 3세대 바이오연료 생산에 사용되는 미세조류를 대량으로 생산할 수 있는 미세조류 생산장치를 이용한 폐수 고도처리장치에 관한 것이다.The present invention relates to an advanced wastewater treatment apparatus using a microalgae production apparatus, and more particularly, to remove nitrogen or phosphorus compounds in wastewater by an environmentally friendly method using a microalgae production apparatus of a plant factory, The present invention relates to an advanced wastewater treatment system using a microalgae production apparatus capable of producing a large amount of microalgae used for fuel production.

폐수에 존재하는 질소나 인 화합물이 충분히 제거되지 않은 상태에서 수계에 방류되면 담수 및 해수에 부영양화를 일으켜 경제적인 피해는 물론 식수, 생태계에 악영향을 일으키는 것으로 알려져 있다. 따라서 폐수처리과정 중 고도처리 과정을 통하여 폐수 속에 존재하는 질소나 인 화합물을 제거하고 있다.If nitrogen or phosphorus compounds present in the wastewater are not sufficiently removed, they are known to cause eutrophication of freshwater and seawater, causing economic damage as well as adverse effects on drinking water and ecosystems. Therefore, nitrogen or phosphorus compounds in the wastewater are removed through the advanced treatment of the wastewater treatment process.

이러한 폐수 고도처리에서 질소나 인 화합물을 제거하는 방법에는 미생물을이용하여 처리하는 것이 일반적인 방법이다. 그리고, 미세조류는 광합성에 의해 생장하는 미생물로써 이산화탄소를 탄소원으로 이용하여 생장하며 질소를 비료로 이용하여 고정화할 수 있다.In order to remove nitrogen or phosphorus compounds in the advanced wastewater treatment, it is common practice to use microorganisms for treatment. In addition, the microalgae are microorganisms grown by photosynthesis and grow using carbon dioxide as a carbon source and immobilized using nitrogen as a fertilizer.

한편, 질소화합물을 처리하는 과정에서 아산화질소(N2O) 부산물이 생성되는데, 상기 아산화질소는 이산화탄소의 약 200배의 온실효과를 발휘하는 것으로 알려져 있다.On the other hand, nitrous oxide (N 2 O) by-products are generated in the process of treating nitrogen compounds, which are known to exert about 200 times the greenhouse effect of carbon dioxide.

따라서, 폐수의 고도처리공정에서 상기 아산화질소를 포집하는 과정이 필요하다. 그러나, 종래 하, 폐수 처리장의 경우 열린구조로 되어 있어 아산화질소의 포집이 거의 불가능하다는 문제가 있다.Therefore, a process for collecting the nitrous oxide is required in the advanced treatment of wastewater. However, in the prior art, the waste water treatment plant has an open structure, and thus there is a problem that it is almost impossible to collect nitrous oxide.

또한, 미생물이 광합성 반응에 의해 생장하면서 폐수 속의 질소나 인 화합물을 흡수,제거하므로, 상기 미생물이 수용되는 폭기조는 빛의 투과를 위하여 많은 면적을 필요로 하게 되고, 이에 따라 폐수처리장 설치시에 환경적 영향이 크며, 폐수의 고도처리공정을 24시간 진행하기 어렵다는 문제가 있다.In addition, since the microorganisms grow by photosynthetic reaction to absorb and remove nitrogen or phosphorus compounds in the wastewater, the aeration tank in which the microorganisms are accommodated requires a large area for the transmission of light. There is a big impact, it is difficult to proceed with the advanced treatment of waste water 24 hours.

본 발명은 상기와 같은 종래 문제점을 해소하기 위하여 제안된 것으로서 그 목적 측면은, 식물공장방식을 이용한 미세조류 생산장치를 이용하여 환경친화적인 방법으로 폐수 속의 질소나 인 화합물을 제거하면서, 3세대 바이오연료 생산에 이용되는 미세조류를 대량으로 생산할 수 있는 미세조류 생산장치를 이용한 폐수 고도처리장치를 제공하는 데에 있다.The present invention has been proposed in order to solve the conventional problems as described above, the object of the present invention, using a microalgae production apparatus using a plant factory method while removing nitrogen or phosphorus compounds in the waste water in an environmentally friendly method, 3rd generation bio An object of the present invention is to provide an advanced wastewater treatment system using a microalgae production apparatus capable of producing a large amount of microalgae used for fuel production.

또한, 본 발명은 일 측면으로써 질소를 제거하는 과정에서 발생하는 아산화질소의 포집과 미세조류의 광합성을 통한 이산화탄소의 고정화를 통하여 지구온난화를 야기하는 온실가스의 배출을 감소시킬 수 있는 미세조류 생산장치를 이용한 폐수 고도처리장치를 제공하는 데에 있다.In addition, the present invention is a microalgae production apparatus that can reduce the emission of greenhouse gases causing global warming through the capture of nitrous oxide generated in the process of removing nitrogen and the immobilization of carbon dioxide through photosynthesis of microalgae It is to provide an advanced wastewater treatment system using.

아울러, 본 발명은 일 측면으로써 인공광원과 다층구조를 이용하여 미세조류를 생산하므로 상기 고도처리시설 설비에 환경적인 영향을 적게 받게 되며, 폐수 처리공정을 24시간 진행할 수 있는 미세조류 생산장치를 이용한 폐수 고도처리장치를 제공하는 데에 있다.In addition, the present invention is to produce a microalgae using an artificial light source and a multi-layer structure as one aspect is less environmentally affected by the advanced treatment facility, using a microalgae production apparatus that can proceed 24 hours wastewater treatment process To provide an advanced wastewater treatment system.

상기와 같은 목적을 달성하기 위한 기술적인 측면으로서 본 발명은, 폐수를 이용하여 미세조류가 재배되도록 재배공간이 형성되는 재배베드;와, 상기 재배베드에 폐수를 공급하는 폐수공급부;와, 상기 재배베드에서 재배되는 미세조류에 빛을 조사하는 광원부;를 포함하는 미세조류 생산장치를 이용한 폐수 고도처리장치를 제공한다.As a technical aspect for achieving the above object, the present invention, a cultivation bed in which a cultivation space is formed to grow microalgae using wastewater; and a wastewater supply unit for supplying wastewater to the cultivation bed; and the cultivation It provides a high wastewater treatment apparatus using a microalgae production apparatus comprising a; light source unit for irradiating light to the microalgae cultivated in the bed.

바람직하게는, 상기 재배베드는 다층구조로 배치될 수 있다.Preferably, the cultivation bed may be arranged in a multi-layer structure.

또한 바람직하게는, 상기 재배베드는 공급되는 폐수가 흘러 내리도록 경사지게 형성될 수 있다.Also preferably, the cultivation bed may be inclined so that the wastewater supplied flows down.

더욱 바람직하게는, 상기 재배베드는 폐수의 흐름을 제어하도록 표면에 돌출 형성되는 복수개의 돌출부재를 포함하여 구성될 수 있다.More preferably, the cultivation bed may comprise a plurality of protruding members protruding from the surface to control the flow of waste water.

바람직하게는, 상기 재배베드는 빛이 투과되도록 투명한 재질로 이루어질 수 있다.Preferably, the cultivation bed may be made of a transparent material so that light is transmitted.

바람직하게, 상기 폐수공급부는 상기 폐수가 저장되는 폐수공급탱크;와, 상기 폐수공급탱크로부터 상기 재배베드에 폐수를 공급하는 폐수공급관;과, 상기 폐수공급탱크 내의 양액을 상기 폐수공급관으로 공급하는 펌프;를 포함하며, 상기 재배베드에서 배출되는 폐수는 상기 폐수공급탱크로 유입될 수 있다.Preferably, the wastewater supply unit is a wastewater supply tank for storing the wastewater; and a wastewater supply pipe for supplying wastewater from the wastewater supply tank to the cultivation bed; and a pump for supplying nutrient solution in the wastewater supply tank to the wastewater supply pipe. It includes; and the waste water discharged from the cultivation bed may be introduced into the waste water supply tank.

더욱 바람직하게, 상기 폐수공급부는, 상기 재배베드에 공기가 공급되도록 상기 폐수공급탱크내의 폐수에 미세기포를 발생시키는 미세기포 발생수단을 포함하여 구성될 수 있다.More preferably, the wastewater supply unit may include a microbubble generating means for generating microbubbles in the wastewater in the wastewater supply tank so that air is supplied to the cultivation bed.

바람직하게, 상기 광원부는 LED광원을 포함하여 구성될 수 있다.Preferably, the light source unit may be configured to include an LED light source.

이와 같은 미세조류 생산장치를 이용한 폐수 고도처리장치에 의하면, 식물공장방식을 이용한 미세조류 생산장치를 이용하게 되므로 환경친화적인 방법으로 폐수 속의 질소나 인 화합물의 고도처리를 할 수 있는 효과를 제공한다.According to the advanced wastewater treatment apparatus using the microalgae production apparatus, the microalgae production apparatus using the plant factory method is used, thereby providing the effect of the advanced treatment of nitrogen or phosphorus compounds in the wastewater in an environmentally friendly way. .

또한, 상기 미세조류 생산장치를 이용한 폐수 고도처리 과정은 실내에서 수행되므로 고도처리과정에서 발생하는 아산화질소를 포집하기 용이하고, 미세조류의 광합성 과정에 이산화탄소가 흡수되므로 이산화탄소를 고정할 수 있어 지구온난화를 야기하는 온실가스의 배출을 감소시킬 수 있는 이점이 있다.In addition, the wastewater advanced treatment process using the microalgae production apparatus is performed indoors, so it is easy to capture nitrous oxide generated during the advanced treatment process, and carbon dioxide is absorbed in the photosynthetic process of the microalgae, so that carbon dioxide can be fixed and thus global warming. There is an advantage that can reduce the emission of greenhouse gases causing.

아울러, 상기 미세조류 생산장치에서는 인공광원과 다층구조를 이용하여 미세조류를 생산하므로 상기 고도처리시설 설비에 환경적인 영향을 적게 받게 되며, 폐수 처리공정을 24시간 진행할 수 있는 효과를 제공한다.In addition, the microalgae production apparatus produces microalgae using an artificial light source and a multi-layered structure, so that the algae are less environmentally affected by the advanced treatment facility, and provide an effect of performing the wastewater treatment process 24 hours.

그리고, 이러한 폐수 속의 질소, 인을 제거하는 고도처리 공정을 이용하여 바이오디젤, 바이오에탄올 등의 바이오연료를 생산하는 원료가 되는 미세조류를 대량을 생산할 수 있는 이점을 제공한다.In addition, by using a high-treatment process for removing nitrogen and phosphorus in the wastewater, it provides an advantage that can produce a large amount of microalgae, which is a raw material for producing biofuels such as biodiesel and bioethanol.

도 1은 본 발명에 따른 미세조류 생산장치를 이용한 폐수 고도처리장치의 일실시예를 도시한 개략도이다.
도 2는 본 발명에 의한 재배베드의 일실시예를 도시한 도면이다.1 is a schematic diagram showing an embodiment of an advanced wastewater treatment apparatus using a microalgae production apparatus according to the present invention.
2 is a view showing an embodiment of a cultivation bed according to the present invention.

이하, 첨부된 도면에 따라 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

먼저, 이하에서 설명되는 실시예들은 본 발명인 미세조류 생산장치를 이용한 폐수 고도처리장치의 기술적인 특징을 이해시키기에 적합한 실시예들이다. 다만, 본 발명이 이하에서 설명되는 실시예에 한정하여 적용되거나 설명되는 실시예들에 의하여 본 발명의 기술적 특징이 제한되는 것이 아니며, 본 발명의 기술 범위 내에서 다양한 변형 실시가 가능하다.
First, the embodiments described below are embodiments suitable for understanding the technical features of the advanced wastewater treatment apparatus using the microalgae production apparatus of the present invention. However, the technical features of the present invention are not limited by the embodiments to which the present invention is applied or explained in the following embodiments, and various modifications are possible within the technical scope of the present invention.

본 발명에 따른 미세조류 생산장치를 이용한 폐수 고도처리장치(100)는, 도 1에 도시된 일실시예와 같이, 폐수를 이용하여 미세조류가 재배되도록 재배공간이 형성되는 재배베드(110)와, 상기 재배베드(110)에 폐수를 공급하는 폐수공급부(130)와, 상기 재배베드(110)에서 재배되는 미세조류에 빛을 조사하는 광원부(150)를 포함하여 구성된다.Wastewater advanced processing apparatus 100 using the microalgae production apparatus according to the present invention, as shown in Figure 1, the cultivation bed 110 is formed with a cultivation space to grow microalgae using wastewater and , And a wastewater supply unit 130 for supplying wastewater to the cultivation bed 110, and a light source unit 150 for irradiating light to the microalgae cultivated in the cultivation bed 110.

이때, 도 1에 도시된 일실시예와 같은 폐수 고도처리장치(100)에 적용되는 미세조류 생산장치는 식물공장시스템을 이용할 수 있다. 식물공장시스템은 일정한 시설 내에서 빛, 온도, 습도, 공기(이산화탄소 농도), 물, 영양분 등 식물배양에 필요한 모든 환경조건을 인공적으로 통제, 제어하여 농작물을 생산하는 시스템을 말한다. 이와 같은 식물공장시스템을 이용하여 상기 미세조류를 생산하면 계절이나 장소에 관계없이 자동화를 통하여 공장생산과 동일한 방식으로 미세조류를 생산할 수 있게 된 다.At this time, the microalgae production apparatus applied to the wastewater advanced treatment apparatus 100 as shown in FIG. 1 may use a plant factory system. The plant factory system is a system that produces crops by artificially controlling and controlling all environmental conditions necessary for plant culture, such as light, temperature, humidity, air (carbon dioxide concentration), water, and nutrients, within a certain facility. Production of the microalgae using such a plant factory system enables the production of microalgae in the same manner as the factory production through automation regardless of the season or place.

상기 재배베드(110)는, 도 1에 도시된 일실시예와 같이, 미세조류를 생산할 수 있는 상부가 개방된 재배공간이 형성될 수 있다. 그리고, 상기 재배베드(110) 내의 미세조류는 상기 폐수 공급부(130)에서 공급된 폐수 속의 질소나 인 화합물을 비료로 하여 배양될 수 있다. 이러한 과정에서 상기 폐수 속의 질소나 인 화합물이 제거될 수 있다. 또한 공기 중의 이산화탄소를 이용하여 광합성을 할 수 있다.The cultivation bed 110, as shown in the embodiment shown in Figure 1, may be formed in the upper cultivation space is open to produce a microalgae. In addition, the microalgae in the cultivation bed 110 may be cultured using nitrogen or phosphorus compounds in the wastewater supplied from the wastewater supply unit 130 as a fertilizer. In this process, nitrogen or phosphorus compounds in the wastewater may be removed. In addition, photosynthesis can be performed using carbon dioxide in the air.

한편, 미세조류의 대량생산을 위하여 상기 재배베드(110)는 다층구조로 배치될 수 있고, 수평으로 여러 열로 구성될 수 있다. 이때, 폐수는 상기 최상단의 재배베드(110)의 일측 상단에 유입되며, 하부에 위치한 상기 재배베드(110)들은 상부 재배베드(110)의 타측에서 배수되는 폐수를 공급받을 수 있다.On the other hand, for mass production of microalgae, the cultivation bed 110 may be arranged in a multi-layer structure, and may be configured in several rows horizontally. At this time, the waste water is introduced into one top of the top of the cultivation bed 110, the cultivation bed 110 located in the lower may receive the waste water drained from the other side of the top cultivation bed (110).

또한, 상기 광원부(150)는 상기 재배베드(110)의 상부에 설치되며 상기 재배베드(110)에서 재배되는 미세조류에 빛을 조사하도록 구비되어 미세조류의 광합성을 유도하게 된다. In addition, the light source unit 150 is installed above the cultivation bed 110 and is provided to irradiate light to the microalgae grown in the cultivation bed 110 to induce photosynthesis of the microalgae.

그리고, 상기 광원부(150)는 미세조류의 광합성을 유도할 수 있다면 제한 없이 적용될 수 있으며, 예를 들어 형광조명, 백열조명, LED를 이용한 조명 등의 인공조명이 사용될 수 있다. In addition, the light source unit 150 may be applied without limitation as long as it can induce photosynthesis of microalgae, and for example, artificial light such as fluorescent light, incandescent light, or LED light may be used.

이때 바람직하게, 상기 광원부는 LED광원을 포함하여 구성될 수 있다. 상기 LED광원은 청색 또는 적색의 다양한 광원이 존재하고 전력소모 또한 적어서 인공광원으로서의 가치가 있으며, 특히 미세조류가 생장할 때 필요로 하는 적색, 청색, 백색들을 조합하거나, 독립적으로 조사할 수 있다.In this case, preferably, the light source unit may be configured to include an LED light source. The LED light source is valuable as an artificial light source because there are various light sources of blue or red, and the power consumption is also low. In particular, the LED light source may combine red, blue, and white colors required when microalgae grow, or irradiate them independently.

한편, 상기 재배베드(110)는, 도 1에 도시된 바와 같이, 공급되는 폐수가 흘러 내리도록 경사지게 형성될 수 있다. On the other hand, the cultivation bed 110, as shown in Figure 1, may be formed to be inclined so that the supplied waste water flows down.

이에 따라, 미세조류의 생산에 필요한 폐수는 상기 재배베드(110)의 일측으로 유입된 후 경사진 상기 재배베드(110)를 따라 타측으로 흘러 내리면서 상기 재배베드(110) 내의 미세조류에 필요한 유기물을 공급할 수 있다. 이때, 폐수 속의 질소나 인 등은 미세조류가 흡수함으로써 제거될 수 있다.Accordingly, the wastewater required for the production of microalgae flows into one side of the cultivation bed 110 and then flows down to the other side along the inclined cultivation bed 110 while the organic material required for the microalgae in the cultivation bed 110. Can be supplied. At this time, nitrogen or phosphorus in the waste water can be removed by the microalgae absorb.

이때, 상기 재배베드(110)는 폐수가 배수되면서 상기 하부 재배베드(110)로 유입될 수 있도록 타측이 개방되게 형성될 수 있다. At this time, the cultivation bed 110 may be formed so that the other side is open to be introduced into the lower cultivation bed 110 while the waste water is drained.

또한, 상기 재배베드(110)는 폐수의 흐름을 제어하도록 표면에 돌출 형성되는 복수개의 돌출부재(111)를 포함하여 구성될 수 있다. In addition, the cultivation bed 110 may be configured to include a plurality of protruding members 111 protruding to the surface to control the flow of waste water.

즉, 상기 돌출부재(111)는, 도 2에 도시된 일실시예와 같이, 상기 재배베드(110)의 표면에 복수개로 돌출 형성되어, 경사진 상기 재배베드(110)의 표면을 흐르는 폐수의 흐름을 제어함으로써 미세조류에 충분한 유기물이 공급되도록 한다.That is, the protruding member 111, as shown in Figure 2, a plurality of protrusions formed on the surface of the cultivation bed 110, the waste water flowing through the surface of the inclined cultivation bed 110 By controlling the flow, sufficient organics are supplied to the microalgae.

이때, 상기 재배베드(110)의 경사 각도는 1~5도 정도가 바람직하며, 유량 및 유체 체류시간을 고려하여 조절될 수 있다.At this time, the inclination angle of the cultivation bed 110 is preferably about 1 to 5 degrees, and may be adjusted in consideration of the flow rate and the fluid residence time.

또한, 상기 돌출부재(111)는 경사진 상기 재배베드(110)를 따라 폐수가 흐를 수 있게 형성되면서, 폐수가 흐르는 속도가 조절되도록 형성된다면 형상이나 개수, 간격에 제한이 없이 다양한 변형실시가 가능하다. 예를 들어, 도 2의 일실시예와 같이, 상기 돌출부재(111)는 단면이 삼각형상으로 갖도록하여 폐수의 흐름이 원활하도록 형성될 수 있다.In addition, the protruding member 111 is formed so that the waste water flows along the inclined cultivation bed 110, if the speed of the waste water is formed to be controlled, various modifications can be made without any limitation in shape, number, or spacing. Do. For example, as in the embodiment of Figure 2, the protruding member 111 may be formed to have a triangular cross-section so that the waste water flows smoothly.

한편, 상기 재배베드(110)는 빛이 투과되도록 투명한 재질로 이루어질 수 있다.On the other hand, the cultivation bed 110 may be made of a transparent material so that light is transmitted.

즉, 단세포생물인 미세조류는 일반 식물과 같이 상하 방향으로 길이를 갖지 않으므로 상기 재배베드(110)의 간격을 좁게하여 밀착되게 설치할 수 있고, 이때 상기 재배베드(110)를 유리 등의 투명한 재질로 형성하면 상기 광원부(150)는 2~3개의 상기 재배베드(110)로 빛을 조사할 수 있다. 이에 따라, 상기 광원부(150)의 개수를 줄일 수 있어 설치비용을 절감할 수 있고, 공간활용 면에서도 우수한 효과를 얻을 수 있다.That is, the microalgae, which are single cell organisms, do not have a length in the vertical direction as in general plants, so that the microalgae may be installed to be in close contact with each other by narrowing the interval of the cultivation bed 110. When formed, the light source unit 150 may irradiate light to two or three cultivation beds 110. Accordingly, the number of the light source unit 150 can be reduced, thereby reducing the installation cost and obtaining excellent effects in terms of space utilization.

다만, 상기와 같이, 하나의 광원부(150)를 이용하여 상기 다수층의 재배베드(110)에 빛을 조사하는 경우에는 빛의 투과율을 높이기 위하여 미세조류의 농도를 낮게 조절할 수 있다.However, as described above, when irradiating light to the cultivation bed 110 of the multiple layers using one light source unit 150, the concentration of the microalgae may be lowered to increase the light transmittance.

한편, 상기 폐수공급부(130)는 상기 폐수가 저장되는 폐수공급탱크(131)와, 상기 폐수공급탱크(131)로부터 상기 재배베드(110)에 폐수를 공급하는 폐수공급관(133)과, 상기 폐수공급탱크(131) 내의 양액을 상기 폐수공급관(133)으로 공급하는 펌프(135)를 포함하여 구성될 수 있다. On the other hand, the wastewater supply unit 130 is a wastewater supply tank 131 for storing the wastewater, a wastewater supply pipe 133 for supplying wastewater from the wastewater supply tank 131 to the cultivation bed 110, and the wastewater It may include a pump 135 for supplying the nutrient solution in the supply tank 131 to the waste water supply pipe 133.

그리고, 상기 최하단의 재배베드(110)에서 배출되는 폐수는 다시 폐수 공급탱크(131)로 유입될 수 있다. 이에 따라, 폐수가 상기 재배베드(110)와 상기 폐수공급탱크(131) 사이를 순환함으로써 폐수 속의 질소나 인 화합물의 제거율을 높일 수 있다.In addition, the wastewater discharged from the lowermost cultivation bed 110 may be introduced into the wastewater supply tank 131 again. Accordingly, the wastewater is circulated between the cultivation bed 110 and the wastewater supply tank 131 to increase the removal rate of nitrogen or phosphorus compounds in the wastewater.

즉, 상기 폐수공급탱크(131)에 저장된 폐수는 상기 펌프(135)에 의해 상기 폐수공급관(133)으로 공급되어, 상기 폐수공급관(133)이 연결된 상기 재배베드(110)의 일측으로 유입된 후 상기 경사진 재배베드(110)의 표면에서 타측으로 흘러내리면서 미세조류에 유기물을 공급하게 된다. 이때, 상기 재배베드(110)의 표면을 흐르는 폐수는 상기 돌출부재(111)에 의해 흐름이 조절될 수 있다.That is, the wastewater stored in the wastewater supply tank 131 is supplied to the wastewater supply pipe 133 by the pump 135, and flows into one side of the cultivation bed 110 to which the wastewater supply pipe 133 is connected. The organic material is supplied to the microalgae while flowing down from the surface of the inclined cultivation bed 110 to the other side. At this time, the wastewater flowing through the surface of the cultivation bed 110 may be controlled by the protrusion member 111.

이 후, 상기 재배베드(110)의 타측으로 흘러내린 폐수는 하부 재배베드(110)로 유입되어 상기와 같은 방식을 흐르게 되고, 최하단의 재배베드(110)에 흐른 폐수는 다시 상기 폐수공급탱크(131)로 유입됨으로써 순환하게 된다. 다만, 이때 폐수 속의 질소나 인 화합물이 충분히 제거된 경우에는 폐수를 순환시키지 않고 고도처리과정을 종료시킬 수 있다.Thereafter, the wastewater flowing to the other side of the cultivation bed 110 flows into the lower cultivation bed 110 and flows in the same manner as described above, and the wastewater flowing in the lowermost cultivation bed 110 returns the wastewater supply tank ( 131 is circulated by the flow. However, if nitrogen or phosphorus compounds in the wastewater are sufficiently removed, the advanced treatment may be terminated without circulating the wastewater.

한편, 상기 폐수공급부(130)는, 상기 재배베드(110)에 공기가 공급되도록 폐수에 미세기포를 발생시키는 미세기포 발생수단(137)을 포함하여 구성될 수 있다. 즉, 상기 미세기포 발생수단(137)은 상기 폐수공급탱크(131)에 구비되어 상기 폐수공급탱크(131) 내의 폐수에 미세기포를 발생하게 된다.Meanwhile, the wastewater supply unit 130 may include a microbubble generating means 137 for generating microbubbles in the wastewater so that air is supplied to the cultivation bed 110. That is, the microbubble generating means 137 is provided in the wastewater supply tank 131 to generate microbubbles in the wastewater in the wastewater supply tank 131.

이러한 미세기포 발생수단(137)은 상기 폐수탱크 내에 저장된 폐수에 미세기포를 발생시킴으로써 미세조류가 광합성을 하는데 필요한 이산화탄소를 공급할 수 있다. 다만, 공급되는 공기는 이산화탄소에 한정되는 것은 아니며, 예를 들어 폐수를 정화시키기 위한 산소 등이 공급될 수도 있다.The microbubble generating means 137 may supply the carbon dioxide necessary for microalgae photosynthesis by generating microbubbles in the wastewater stored in the wastewater tank. However, the air supplied is not limited to carbon dioxide, for example, oxygen or the like may be supplied to purify the wastewater.

그리고, 상기 미세기포 발생수단(137)은 일반적인 미세기포 발생방법이 제한 없이 사용될 수 있다. 예를 들어, 버블 발생기를 이용하여 탱크내 폐수를 흡입하고 흡입한 폐수를 공기로 가압, 용해하여 다시 탱크 안으로 배출하면서 미세기포를 분출하는 가압용해방식이나, 탱크 내에 모터를 장착하고 선회류를 발생시켜 미세기포를 생성하는 고속선회방식이 적용될 수 있다.In addition, the microbubble generating means 137 may be used without any general microbubble generating method. For example, a bubble generator is used to inhale wastewater in the tank, pressurize and dissolve the sucked wastewater with air, and discharge it back into the tank. By using a high-speed turning method to generate a micro bubble by making it.

한편, 도 1은 상기 미세기포 발생수단(137)이 상기 폐수공급탱크(131)의 외측에 배치되는 경우를 도시하고 있지만, 상기 미세기포 발생수단(137)은 상기 폐수공급탱크(131) 내부에 설치되어 기포를 발생시키도록 구비될 수도 있다.Meanwhile, FIG. 1 illustrates a case in which the microbubble generating means 137 is disposed outside the wastewater supply tank 131, but the microbubble generating means 137 is disposed inside the wastewater supply tank 131. It may be provided so as to generate bubbles.

이와 같이, 상기 폐수공급탱크(131)에 발생된 미세기포는 폐수와 함께 상기 폐수공급관(133)으로 공급되어 상기 재배베드(110)에 유입된다. 그리고, 상기 광합성이 필요한 이산화탄소 등의 공기를 미세조류에 공급하게 된다.
As such, the fine bubbles generated in the wastewater supply tank 131 are supplied to the wastewater supply pipe 133 together with the wastewater and flow into the cultivation bed 110. Then, air, such as carbon dioxide that requires photosynthesis, is supplied to the microalgae.

이와 같은 미세조류 생산장치를 이용한 폐수 고도처리장치(100)를 이용하면, 식물공장방식을 이용한 미세조류 생산장치를 이용하게 되므로 환경친화적인 방법으로 폐수 속의 질소나 인 화합물의 고도처리를 할 수 있는 이점이 있다.By using the advanced wastewater treatment apparatus 100 using the microalgae production apparatus as described above, the microalgae production apparatus using the plant factory method can be used to perform the advanced treatment of nitrogen or phosphorus compounds in the wastewater in an environmentally friendly way. There is an advantage.

또한, 상기 미세조류 생산장치를 이용한 폐수 고도처리 과정은 실내에서 수행되므로 고도처리과정에서 발생하는 아산화질소를 포집하기 용이하고, 미세조류의 광합성 과정에 이산화탄소가 흡수되므로 이산화탄소를 고정할 수 있어 지구온난화를 야기하는 온실가스의 배출을 감소시킬 수 있는 이점이 있다.In addition, the wastewater advanced treatment process using the microalgae production apparatus is performed indoors, so it is easy to capture nitrous oxide generated during the advanced treatment process, and carbon dioxide is absorbed in the photosynthetic process of the microalgae, so that carbon dioxide can be fixed and thus global warming. There is an advantage that can reduce the emission of greenhouse gases causing.

아울러, 상기 미세조류 생산장치에서는 인공광원을 이용하여 미세조류를 생산하므로 상기 고도처리시설 설비에 환경적인 영향을 덜 받게 되고, 폐수 처리공정을 24시간 진행할 수 있는 효과를 제공한다.In addition, since the microalgae production apparatus produces microalgae using an artificial light source, the microalgae production apparatus is less environmentally affected by the advanced treatment facility and provides an effect of performing the wastewater treatment process 24 hours.

그리고, 이러한 폐수 속의 질소, 인을 제거하는 고도처리 공정을 이용하여 바이오디젤, 바이오에탄올 등의 바이오연료를 생산하는 원료가 되는 미세조류를 대량을 생산할 수 있는 이점을 제공한다.
In addition, by using a high-treatment process for removing nitrogen and phosphorus in the wastewater, it provides an advantage that can produce a large amount of microalgae, which is a raw material for producing biofuels such as biodiesel and bioethanol.

본 발명은 지금까지 특정한 실시 예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 마련되는 본 발명의 정신이나 분야를 벗어나지 않는 한 도내에서 본 발명이 다양하게 개조 및 변화될 수 있다는 것을 당 업계에서 통상의 지식을 가진 자는 용이하게 알 수 있음을 밝혀두고자 한다. While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

100 : 미세조류 생산장치를 이용한 폐수 고도처리장치
110 : 재배베드 111 : 돌출부재
130 : 폐수공급부 131 : 폐수공급탱크
133 : 폐수공급관 135 : 펌프
137 : 미세기포 발생수단 150 : 광원부100: advanced wastewater treatment system using microalgae production apparatus
110: cultivation bed 111: protruding member
130: wastewater supply unit 131: wastewater supply tank
133: wastewater supply pipe 135: pump
137: microbubble generating means 150: light source

Claims (8)

폐수를 이용하여 미세조류가 재배되도록 재배공간이 형성되는 재배베드;
상기 재배베드에 폐수를 공급하는 폐수공급부; 및,
상기 재배베드에서 재배되는 미세조류에 빛을 조사하는 광원부;
를 포함하는 미세조류 생산장치를 이용한 폐수 고도처리장치.A cultivation bed in which a cultivation space is formed to grow microalgae using wastewater;
Wastewater supply unit for supplying wastewater to the cultivation bed; And,
A light source unit irradiating light to the microalgae cultivated in the cultivation bed;
Wastewater advanced treatment apparatus using a microalgae production apparatus comprising a. 제1항에 있어서,
상기 재배베드는 다층구조로 배치되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The method of claim 1,
The cultivation bed is an advanced wastewater treatment apparatus using a microalgae production apparatus, characterized in that arranged in a multi-layer structure. 제1항에 있어서,
상기 재배베드는 공급되는 폐수가 흘러 내리도록 경사지게 형성되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The method of claim 1,
The cultivation bed is an advanced wastewater treatment system using a microalgae production apparatus, characterized in that formed inclined so that the wastewater supplied flows down. 제3항에 있어서,
상기 재배베드는 폐수의 흐름을 제어하도록 표면에 돌출 형성되는 복수개의 돌출부재를 포함하여 구성되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The method of claim 3,
The cultivation bed is an advanced wastewater treatment apparatus using a microalgae production apparatus, characterized in that it comprises a plurality of protruding members protruding on the surface to control the flow of wastewater. 제1항에 있어서,
상기 재배베드는 빛이 투과되도록 투명한 재질로 이루어진 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The method of claim 1,
The cultivation bed is an advanced wastewater treatment apparatus using a microalgae production apparatus, characterized in that made of a transparent material to transmit light. 제1항에 있어서, 상기 폐수공급부는 상기 폐수가 저장되는 폐수공급탱크;와, 상기 폐수공급탱크로부터 상기 재배베드에 폐수를 공급하는 폐수공급관;과, 상기 폐수공급탱크 내의 양액을 상기 폐수공급관으로 공급하는 펌프;를 포함하며,
상기 재배베드에서 배출되는 폐수는 상기 폐수공급탱크로 유입되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The wastewater supply unit of claim 1, wherein the wastewater supply unit comprises: a wastewater supply tank for storing the wastewater; and a wastewater supply pipe for supplying wastewater from the wastewater supply tank to the cultivation bed; and the nutrient solution in the wastewater supply tank to the wastewater supply pipe. A pump for supplying;
Wastewater discharged from the cultivation bed is an advanced wastewater treatment apparatus using a microalgae production apparatus, characterized in that the wastewater supply tank is introduced. 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 폐수공급부는, 상기 재배베드에 공기가 공급되도록 폐수에 미세기포를 발생시키는 미세기포 발생수단을 포함하여 구성되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.7. The method according to any one of claims 1 to 6,
The wastewater supply unit is a high wastewater treatment apparatus using a microalgae production apparatus, characterized in that it comprises a microbubble generating means for generating microbubbles in the wastewater so that air is supplied to the cultivation bed. 제1항에 있어서,
상기 광원부는 LED광원을 포함하여 구성되는 것을 특징으로 하는 미세조류 생산장치를 이용한 폐수 고도처리장치.The method of claim 1,
The light source unit is an advanced wastewater treatment apparatus using a microalgae production apparatus, characterized in that comprising an LED light source.
KR1020110032644A 2011-04-08 2011-04-08 High concentration wastewater treatment device by using apparatus for production of microalgae KR20120114851A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423285B1 (en) * 2014-01-17 2014-07-24 주식회사 에이이 system and method for cultivating micro algae using wastewater
CN109997771A (en) * 2019-04-23 2019-07-12 西北农林科技大学 A method of based on carbon, iron, light regulation pool water transfer system and using the system to pool water transfer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423285B1 (en) * 2014-01-17 2014-07-24 주식회사 에이이 system and method for cultivating micro algae using wastewater
WO2015108279A1 (en) * 2014-01-17 2015-07-23 주식회사 에이이 Microalgae culturing system using wastewater and culturing method therefor
CN109997771A (en) * 2019-04-23 2019-07-12 西北农林科技大学 A method of based on carbon, iron, light regulation pool water transfer system and using the system to pool water transfer

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