KR0152728B1 - Microorganism carrier for waste water treatment - Google Patents
Microorganism carrier for waste water treatmentInfo
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- KR0152728B1 KR0152728B1 KR1019950020829A KR19950020829A KR0152728B1 KR 0152728 B1 KR0152728 B1 KR 0152728B1 KR 1019950020829 A KR1019950020829 A KR 1019950020829A KR 19950020829 A KR19950020829 A KR 19950020829A KR 0152728 B1 KR0152728 B1 KR 0152728B1
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- activated sludge
- polyvinyl alcohol
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- 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
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/08—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer
- C12N11/082—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C12N11/084—Polymers containing vinyl alcohol units
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/108—Immobilising gels, polymers or the like
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- 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
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/14—Enzymes or microbial cells immobilised on or in an inorganic carrier
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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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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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
- 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)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
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- Genetics & Genomics (AREA)
- Microbiology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
본 발명은 축산폐수 처리용 정화조에서 미생물에 의한 분해 등 생물학적처리를 위하여 사용되는 활성슬러지를 고정화한 미생물담체에 관한 것으로 특히 활성탄과 폴리비닐알코올의 혼합물을 담체로 하여 여기에 활성슬러지 중에 존재하는 박테리아 및 원생동물 중의 우점종을 인공배양하여 고정화한 미생물담체에 관한 것이다.The present invention relates to a microbial carrier immobilized activated sludge used for biological treatment such as decomposition by microorganisms in a livestock wastewater treatment septic tank, and in particular, a bacterium present in the activated sludge using a mixture of activated carbon and polyvinyl alcohol as a carrier. And it relates to a microbial carrier immobilized by artificial culture of dominant species in protozoa.
본 발명에 따른 폐수정화용 미생물담체는 고형분이 90 내지 120그램/리터인 활성슬러지 45 내지 48 중량%, 용수에 15 내지 20 중량%로 용해시킨 폴리비닐 알코올용액 45 내지 48 중량% 및 0.5밀리미터 이하의 평균입경을 갖는 활성탄 4 내지 10 중량%를 균일하게 혼합하고, 고화시켜서 이루어짐을 특징으로 한다.The microbial carrier for wastewater purification according to the present invention is 45 to 48% by weight of activated sludge having a solid content of 90 to 120 grams / liter, 45 to 48% by weight of polyvinyl alcohol solution dissolved in water at 15 to 20% by weight and 0.5 mm or less. 4 to 10% by weight of the activated carbon having an average particle diameter is uniformly mixed and solidified.
Description
본 발명은 축산폐수 처리용 정화조에서 미생물에 의한 분해 등 생물학적처리를 위하여 사용되는 활성슬러지를 고정화한 미생물담체에 관한 것으로 특히 활성탄과 폴리비닐알코올의 혼합물을 담체로 하여 여기에 활성슬러지 중에 존재하는 박테리아 및 원생동물 중의 우점종을 인공배양하여 고정화한 매생물 담체에 관한 것이다.The present invention relates to a microbial carrier immobilized activated sludge used for biological treatment such as decomposition by microorganisms in a livestock wastewater treatment septic tank, and in particular, a bacterium present in the activated sludge using a mixture of activated carbon and polyvinyl alcohol as a carrier. And it relates to a medium carriers immobilized by artificial culture of dominant species in protozoa.
최근 환경에 대한 관심이 높아져 가는 추세에 부응하여 각종의 산업시설에 대한 폐수처리에 대한 규제가 강화되어지면서 아울러 일반 축산농가에서 축산시에 발생되어지는 축산 폐수 등 유기물을 함유하는 폐수의 하천에의 직접적인 유입을 규제하고 있으며, 일정한 정화를 거친 후에 방류토록 하고 있다.In response to the recent growing interest in the environment, regulations on wastewater treatment for various industrial facilities have been tightened, and wastewater containing organic matter such as livestock wastewater generated at the time of livestock farming in general livestock farms has been applied to streams. Direct inflows are regulated and discharged after a certain cleanup.
따라서, 축산폐수 등의 유기물을 포함하는 폐수를 처리하기 위한 고정시설로서 다양한 정화조가 개발되었으며, 특히 유기질의 함량이 높은 관계로 이들을 발효시켜 퇴비로 사용할 수 있도록 하는 등의 다각적인 연구가 진행되어 온 것도 사실이다.Therefore, various septic tanks have been developed as fixed facilities for treating wastewater containing organic matters such as livestock wastewater. In particular, various studies have been conducted, such as fermenting them to be used as compost due to the high organic content. It is also true.
정화조에서 생물학적처리를 하기 위한 미생물의 공급원으로서는 미생물배양과 같은 특정 미생물의 접종 및 배양에 의하지 아니하고, 폐수처리의 특성상 폐수 중에 포함될 수 있는 다양한 유기물들을 처리하여야 하는 관계로 여러 가지 미생물종들이 존재하는 활성슬러지를 투입하여 처리하는 것이 일반적이다.As a source of microorganisms for biological treatment in a septic tank, various microbial species exist due to the treatment of various organic substances that may be included in the wastewater due to the nature of wastewater treatment, not by inoculation and incubation of specific microorganisms such as microbial culture. It is common to treat sludge by adding it.
상기에서 활성슬러지라 함은 통상의 정화조에서 사용되는 미생물처리용으로 일반 하수처리장 등의 폭기조에 서식하고 있는 호기성 박테리아와 여러 가지 원생동물을 포함하는 슬러지로서, 질산염을 아질산이나 암모니아로 분해하는 슈도모나스속(Pseudomonas), 축분 등의 대사산물의 점착물질 중에 번식하여 대사산물을 주로 분해하는 주글리아속(Zoogloea), 호기성균의 일종인 노카르디아속(Nocardia), 호균(弧菌)속의 일종인 델로비브리오속(Bdellovibrio) 및 분균(糞菌)의 일종인 미코박테리움속(Mycobacterium)등의 박테리아 및 질화 박테리아 등의 박테리아종과 육질충류인 사르코디나(Sarcodina), 식물성 편모충류인 피토-플라겔레이트(Phyto flagellates), 동물성 편모충류인 주-플라겔 레이트(Zoo flagellates), 흡혈충류인 서크토리아(Suctoria), 섬모충류인 스톡드 실리아테스(Stalked cilliates)등의 원생동물류 등이 포함될 수 있으며, 이들을 포함하는 슬러지를 처리하고자 하는 폐수원수의 성상에 따라 우점종을 사전에 인공배양하여 얻어진 미생물학적으로 활성을 갖는 것이다. 이러한 활성슬러지는 당해 기술분야에서 통상의 지식을 갖는 자에게는 이해되어질 수 있는 것이다.Activated sludge is a sludge containing aerobic bacteria and various protozoa in aeration tanks in general sewage treatment plants for microbial treatment used in conventional septic tanks, and Pseudomonas genus that decomposes nitrates with nitrite or ammonia. (Pseudomonas), Zoogloea, which breeds in the adhesive substances of metabolites such as axial meal, and decomposes metabolites mainly, Nocardia, a type of aerobic bacteria, and Delo, a type of bacteria. Bacterials such as Bdellovibrio and Mycobacterium, a kind of fungus, and bacterial species such as nitriding bacteria, Sarcodina, a worm, and phyto-flagellate, a plant flagella. Phyto flagellates, zoo flagella zoo flagellates, vampire circus Suctoria, ciliary stock Stod silyates (S) Protozoans such as talked cilliates) may be included, and microbiological activity obtained by pre-incubating dominant species according to the characteristics of the wastewater source to be treated with sludge containing them. Such activated sludge can be understood by those skilled in the art.
그러나, 이러한 활성슬러지는 폐수 등의 흐름에 의하여 쉽게 유실될 수 있을 정도의 형상을 가지고 있기 때문에 연속적으로 폐수를 처리하는 정화시설에서는 이를 고정화시키지 아니하고는 쉽게 유실되어 수시로 보충해주어야 하는 등의 문제가 있기 때문에 경제적이지 못하다.However, since such activated sludge has a shape that can be easily lost by the flow of wastewater, there is a problem such that in a purification facility that continuously treats wastewater, it is easily lost and must be replenished without fixing it. It is not economical.
따라서, 이러한 문제점을 해결하고, 고정적인 폐수의 처리가 가능하도록 하기 위하여 활성 슬러지를 폴리비닐알코올등의 팽윤성을 갖는 합성수지에 고정시킨 고정화미생물담체가 선진외국에서 일부 개발되어 사용되고 있다. 이러한 종래의 미생물담체는 폴리비닐알코올 50중량%에 활성슬러지 50중량%를 혼합하여 고정화시킨 것이다. 여기에서 활성슬러지를 고정하는 폴리비닐알코올은 폴리아세트산비닐의 가수분해에 의하여 생성되는 합성수지의 일종으로서, 수지 중의 주쇄에 이어진 측쇄의 말단에 다수의 히드록시기(-OH)가 분포하는 구조를 가지기 때문에 수분에 대한 친화력이 매우크며, 분자량에 따른 중합도가 낮은 경우에는 가용성을 나타내나, 중합도가 높은 경우에는 부분적으로 팽윤되는 성질을 가질 수 있다. 물에 용해되지 아니하고, 팽윤성을 나타내며, 활성슬러지를 고정하기에 적절한 폴리비닐알코올로는 중합도가 대략 2,000정도의 것이 적절하며, 이는 상용적으로 구입하여 사용이 가능한 것으로서, 당해 기술분야에서 통상의 지식을 갖는 자에게는 용이하게 이해되어질 수 있는 것이다.Therefore, in order to solve these problems and to enable the treatment of fixed wastewater, immobilized microcarriers having fixed activated sludge in synthetic resins having swelling properties such as polyvinyl alcohol have been developed and used in advanced foreign countries. The conventional microbial carrier is immobilized by mixing 50% by weight of activated sludge with 50% by weight of polyvinyl alcohol. Herein, polyvinyl alcohol fixing the activated sludge is a kind of synthetic resin produced by hydrolysis of polyvinyl acetate, and has a structure in which a plurality of hydroxyl groups (-OH) are distributed at the end of the side chain connected to the main chain in the resin. When the affinity for is very large, and the degree of polymerization according to the molecular weight is low, it shows solubility, but when the degree of polymerization is high, it may have a property of partially swelling. Polyvinyl alcohol, which is not soluble in water and exhibits swelling properties and is suitable for fixing activated sludge, has a degree of polymerization of about 2,000, which is commercially available and can be used. It can be easily understood by those who have.
그러나, 활성슬러지를 고정시키는 담체로서의 폴리비닐알코올로 이루어진 종래의 미생물담체는 부분적으로 팽윤되어 고정된 미생물을 처리하고자 하는 폐수 중으로 어느정도 분산시킬 수 있기는 하나, 폴리비닐알코올의 겔화에 의하여 표면에서의 부착미생물의 서식이 어려운 조건을 가지며, 또한 비표면적이 크지 않기 때문에 대부분의 호기성의 미생물들이 증식하는데 곤란한 점을 나타내어 결과적으로 생물학적 활성이 저하되는 문제점이 있었다.However, the conventional microbial carrier made of polyvinyl alcohol as a carrier for fixing activated sludge can be partially dispersed in the wastewater to be treated by partially swelling and fixing the microorganism, but the gelation of polyvinyl alcohol on the surface Since the microorganisms had a difficult condition to grow, and because the specific surface area was not large, most aerobic microorganisms had difficulty in proliferating, resulting in a decrease in biological activity.
따라서 본 발명은 이와 같은 종래의 결점을 해소시키기 위하여 안출된 것으로 활성슬러지와 폴리비닐알코올로 이루어지는 종래의 미생물담체에 표면적을 크게 증대시킬 수 있도록 활성탄을 부가하여 활성탄과 폴리비닐알코올의 혼합에 의하여 형성되는 담체에 활성슬러지를 고정화시켜 생물학적 활성을 높인 미생물담체를 제공함을 목적으로 한다.Therefore, the present invention was devised to solve such a conventional drawback, and is formed by mixing activated carbon and polyvinyl alcohol by adding activated carbon to greatly increase the surface area to a conventional microbial carrier composed of activated sludge and polyvinyl alcohol. An object of the present invention is to provide a microbial carrier having a biological activity by immobilizing activated sludge in a carrier.
또한 본 발명은 미생물담체의 비중을 높여 폐수의 흐름에 따른 미생물담체의 유실을 최대한 억제하여 경제적인 폐수처리를 가능하게 하는 미생물담체를 제공함을 목적으로 한다.In addition, an object of the present invention is to provide a microbial carrier to enable economical wastewater treatment by restraining the loss of the microbial carrier according to the flow of waste water by increasing the specific gravity of the microbial carrier.
이와 같은 목적을 갖는 본 발명은 기존의 활성슬러지를 고정하는데 사용되어지던 폴리비닐알코올에 활성탄을 부가하여 비표면적과 비중을 동시에 증가시키도록 하는 것이다.The present invention having such an object is to add activated carbon to polyvinyl alcohol, which has been used to fix conventional activated sludge, to increase specific surface area and specific gravity at the same time.
이하 본 발명을 첨부한 도면을 참조하여 구성을 상세히 설명하기로 한다.Hereinafter, the configuration will be described in detail with reference to the accompanying drawings.
본 발명에 따른 폐수정화용 미생물담체는 고형분이 90 내지 120그램/리터인 활성슬러지 45 내지 48 중량%, 용수에 15내지 20 중량%로 용해시킨 폴리비닐알코올용액 45 내지 48 중량% 및 0.5밀리미터 이하의 평균입경을 갖는 활성탄 4 내지 10 중량%를 균일하게 혼합하고, 고화시켜서 이루어짐을 특징으로 한다.The microbial carrier for waste water purification according to the present invention is 45 to 48% by weight of activated sludge having a solid content of 90 to 120 grams / liter, 45 to 48% by weight of polyvinyl alcohol solution dissolved in water at 15 to 20% by weight and 0.5 mm or less. 4 to 10% by weight of the activated carbon having an average particle diameter is uniformly mixed and solidified.
또한, 상기에서 혼합 및 고화의 용이성을 위하여 폴리비닐알코올과 활성슬러지를 동일량으로 혼합하고, 잔여분을 활성탄으로 보충하는 것이 바람직하다.In addition, it is preferable to mix polyvinyl alcohol and activated sludge in the same amount in order to easily mix and solidify the above, and to replenish the residue with activated carbon.
종래의 미생물담체에서는 단순히 활성슬러지와 폴리비닐알코올만을 혼합하여 이루어진 것으로 상기한 바와 같이, 비표면적이 작고 과다한 겔화에 따른 미생물의 활성이 저하되는 문제점이 있었다.In the conventional microbial carrier, only the activated sludge and polyvinyl alcohol are mixed, and as described above, the specific surface area is small and there is a problem in that the activity of the microorganism due to excessive gelation is lowered.
본 발명에서는 이러한 점을 해결하기 위하여 기존의 미생물담체에서 사용되는 활성슬러지와 폴리비닐알코올을 그대로 사용하고, 여기에 활성탄을 더욱 부가해서 미생물담체를 만드는 것이다.In the present invention, in order to solve this problem, the activated sludge and polyvinyl alcohol used in the existing microbial carrier are used as they are, and activated carbon is further added thereto to make the microbial carrier.
상기에서 활성탄은 흡착성이 강하고 대부분이 탄소질인 탄으로서, 목재, 갈탄, 이탄 등을 염화아연이나 인산 등과 같은 활성화제로 처리하여 건류하거나, 목탄을 수증기로 활성화시켜서 만들 수 있다. 이러한 활성탄은 사용용도에 따라 여러 등급으로 세분되어 상용적으로 공급되어지고 있는 것으로서, 당해 기술분야에서 통상의 지식을 갖는 자에게는 소정의 규격의 활성탄을 용이하게 구입하여 사용할 수 있다. 이는 그 내부에 무수히 형성된 미세기공의 존재로 인하여 흡착성, 흡습성 등이 우수하고, 비표면적이 높아 화학적 촉매로도 사용되고 있는 것이다.Activated carbon is a carbon adsorbent and mostly carbonaceous, it can be made by treating wood, lignite, peat, etc. with an activating agent such as zinc chloride or phosphoric acid, or by activating charcoal with water vapor. Such activated carbon is subdivided into various grades according to the use, and is commercially supplied, and those skilled in the art can easily purchase and use activated carbon having a predetermined standard. It is excellent in adsorption, hygroscopicity, etc. due to the presence of numerous micropores formed therein, and has a high specific surface area, which is also used as a chemical catalyst.
본 발명에서는 활성탄의 이러한 흡착성 및 높은 비표면적을 이용하여 미생물의 활착을 가능하게 하며, 또한 미세기공의 통기성으로 인한 미생물의 증식 조건을 개선하는 기능을 한다. 또한, 활성탄은 폴리비닐알코올에 비하여 비중이 높이 때문에 전체 미생물담체의 비중을 높이는 역할도 한다.In the present invention, the adsorption and high specific surface area of activated carbon are used to enable microorganisms to adhere, and also to improve the growth conditions of microorganisms due to the air permeability of micropores. In addition, activated carbon has a specific gravity higher than that of polyvinyl alcohol, which also plays a role of increasing the specific gravity of the entire microbial carrier.
상술한 구성 및 설명에 의거 본 발명을 하나의 구체적인 실시예에 따라 상세히 설명한다.Based on the above-described configuration and description, the present invention will be described in detail according to one specific embodiment.
[실시예 1]Example 1
평균 2,000의 중합도를 갖는 폴리비닐알코올 20그램을 80그램의 용수에 용해시킨 폴리비닐알코올용액 47.5그램에 0.5밀리미터의 평균입경을 갖는 활성탄 5그램을 가하고, 상기에서 얻어진 혼합물에 우점종을 인위배양한 활성슬러지(고형분으로서 120그램/리터가 분산된 액) 47.5그램을 가하고, 균일하게 혼합한 후, 폴리비닐알코올이 고화되도록 방치하므로써 고정화된 활성 미생물담체를 수득하여 이를 평균 3밀리미터의 직경을 갖는 알갱이로 만들었다.57.5 grams of activated carbon having an average particle diameter of 0.5 mm was added to 47.5 grams of a polyvinyl alcohol solution in which 20 grams of polyvinyl alcohol having an average degree of polymerization of 20 grams was dissolved in 80 grams of water. 47.5 grams of sludge (liquid dispersed in 120 grams / liter as solid) were added, mixed uniformly, and left to allow the polyvinyl alcohol to solidify to obtain an immobilized active microbial carrier, which was then granulated with a grain having an average diameter of 3 millimeters. made.
수득된 미생물담체를 활성슬러지와 폴리비닐알코올 만으로 이루어진 종래의 미생물담체와 물리적 성질을 비교한 표를 다음에 기재하였다.Tables comparing the obtained microbial carriers with physical properties of conventional microbial carriers composed of activated sludge and polyvinyl alcohol are shown below.
상기한 바와 같은 구성을 갖는 본 발명에 따른 폐수정화용 미생물담체는 활성슬러지를 고정화하는 수단으로서 폴리비닐알코올에 더해 활성탄을 부가하여 담체를 구성하므로써 활성탄의 미세기공과 높은 비표면적을 이용하여 미생물담체 자체의 비표면적을 증대시키고, 비중을 높일 수 있음이 밝혀졌다.The microbial carrier for wastewater purification according to the present invention having the above-described configuration is a means for immobilizing activated sludge, and by using activated carbon in addition to polyvinyl alcohol to form a carrier, the microbial carrier itself using micropores and high specific surface area of activated carbon is used. It has been found that the specific surface area can be increased and the specific gravity can be increased.
현편, 본 발명에 따른 미생물담체와 기존의 미생물담체를 비교하기 위한 생물학적 처리시간에 대한 실험결과 동일 용적의 폐수를 처리하는데 소요되는 시간이 본 발명에 따른 미생물담체의 경우 7일 ± 6시간이 소요되며, 기존의 미생물담체의 경우 정화조 종류에 따라 10일 ± 1일 정도 소요되는 것으로 측정되어졌으며, 그 결과 상기한 바와 같은 활성탄의 추가로 인하여 미생물활성이 크게 증대한다는 것을 확인할 수 있었다.Experimental results of biological treatment time for comparing the microbial carrier according to the present invention and the conventional microbial carrier, the time required to treat the same volume of wastewater takes 7 days ± 6 hours for the microbial carrier according to the present invention In the case of the conventional microbial carrier, it was measured that it takes about 10 days ± 1 day depending on the type of septic tank. As a result, it was confirmed that the microbial activity greatly increased due to the addition of activated carbon as described above.
한편, 이러한 생물학적처리조를 거친 유출수의 경우 침전조에서의 부유물질의 침전에 의한 제거로 자연 방류할 수 있을 정도인 화학적산소요구량 240밀리그램/리터 이하, 부유물질 200밀리그램/리터 이하로 양호한 처리가 행하여 질 수 있다.On the other hand, in the case of the effluent through such a biological treatment tank, a good treatment is performed at a chemical oxygen demand of 240 mg / liter or less and a floating material of 200 milligram / liter or less, which can be naturally discharged by removal of suspended matter in the settling tank. Can lose.
이상에서와 같은 본 발명은 고정화되는 미생물담체 자체의 비표면적을 증대시켜 미생물의 활성을 높여 생물학적처리시간을 감소시켜 정화효율을 증대시키는 효과가 제공된다.The present invention as described above is provided with the effect of increasing the specific surface area of the microbial carrier itself to be immobilized to increase the activity of the microorganisms to reduce the biological treatment time to increase the purification efficiency.
또한 본 발명은 미생물담체 자체의 비중을 높여 쉽게 유실되지 않도록 함과 동시에 활성탄의 미세기공에 의한 보습력, 통기성 등에 의한 미생물의 양호한 활착상태를 유지하여 잘 유실되지 않으면서도 원래의 활성을 유지토록 하므로써 미생물담체의 사용기간을 늘려 효율적인 미생물담체의 사용이 가능한 경제적인 폐수처리가 가능하도록 하는 효과가 제공된다.In addition, the present invention increases the specific gravity of the microbial carrier itself so as not to be easily lost, and at the same time to maintain the good activity of the microorganisms by the moisturizing power, breathability, etc. by the micropores of the activated carbon to maintain the original activity without being lost well It is possible to extend the service life of the carrier to provide an economical wastewater treatment that enables efficient use of the microbial carrier.
본 발명은 이상과 같이 기재된 구체예에 대하여만 상세히 설명되었지만 본 발명의 사상과 범위내에서 변경이나 변형할 수 있음은 본 발명이 속하는 분야의 당업자에게는 명백한 것이며 이러한 변경이나 변형은 첨부된 특허청구범위에 의하여 제한되어져야한다.Although the present invention has been described in detail only with respect to the above-described embodiments, it will be apparent to those skilled in the art that the present invention may be changed or modified within the spirit and scope of the present invention, and such changes or modifications are attached to the appended claims. Should be limited by
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| CN105254155A (en) * | 2015-11-27 | 2016-01-20 | 余冉 | Biological wall-breaking method for improving sludge dewatering performance |
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