KR100485265B1 - a membrane filter for water treatment - Google Patents
a membrane filter for water treatment Download PDFInfo
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- KR100485265B1 KR100485265B1 KR10-2002-0025678A KR20020025678A KR100485265B1 KR 100485265 B1 KR100485265 B1 KR 100485265B1 KR 20020025678 A KR20020025678 A KR 20020025678A KR 100485265 B1 KR100485265 B1 KR 100485265B1
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- slag ball
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
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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
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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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- Biodiversity & Conservation Biology (AREA)
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Abstract
본 발명에 따른 수처리용 멤브레인필터는 제강슬래그볼과 바인더로서 고령토가 혼합되어 소결성형시켜 수처리용 멤브레인필터가 제조되므로 제조가 단순하여 제조가 용이하므로 제조가가 저렴하게 되고 음으로 대전된 제강슬래그볼의 표면의 음전하 및 자성에 의하여 공극을 통과하는 오염물질의 포획성능이 우수하여 여과(membrane)성능이 우수하다는 효과가 있다.The membrane filter for water treatment according to the present invention is manufactured by sintering and molding kaolin slag ball and kaolin as a binder to manufacture the membrane filter for water treatment. Due to the negative charge and magnetism of the surface of the contaminants passing through the pores is excellent in the trapping performance is excellent (membrane) performance is excellent.
Description
본 발명은 수처리용 멤브레인필터에 관한 것으로, 더욱 구체적으로 설명하면, 아토마이징 처리된 음으로 대전된 미세한 제강슬래그볼 또는 아토마이징 처리된 제강슬래그볼이 미세하게 분쇄된 제강슬래그볼분말과 고령토(CLAY)를 소결성형시켜 극히 미세한 무수한 다수의 공극이 형성되고 제강슬래그볼이 자체적으로 띠고 있는 자성과 정전기를 이용하여 용수가 다수의 공극을 통하여 유출되면서 용수내에 함유된 오염물질이 효과적으로 제거되는 것이 가능하면서 저렴한 비용으로 제조되어 널리 효과적으로 이용되는 것이 가능한 수처리용 멤브레인필터에 관한 것이다.The present invention relates to a membrane filter for water treatment, and more specifically, to an atomized finely charged steelmaking slag ball or an atomized steelmaking slag ball finely ground steelmaking slag ball powder and kaolin (CLAY) ) By sintering and forming a large number of extremely fine pores and using magnetic and static electricity of steelmaking slag ball, the water flows out through the pores to effectively remove contaminants contained in the water. The present invention relates to a membrane filter for water treatment, which can be manufactured at low cost and widely used effectively.
일반적으로, 전 세계적으로 산업 고도화에 따라 각종 산업 폐기물이 다량으로 발생되고, 이러한 산업 폐기물은 지구 곳곳의 자연 생태계를 무차별적으로 파괴하고 있으며, 자연 생태계의 파괴로 인한 여파로 환경파괴가 가속화되고 있으며, 이러한 환경파괴로 인한 영향은 점점 더 크게 나타나게 되어 현재 인류의 생존권 마저 위협 받고 있으며, 특히 이러한 산업 폐기물로 인하여 인류의 생존에 필요한 물은 오염의 정도가 극심하게 되고, 날로 늘어나는 가정생활에서 발생되는 생활폐수, 염색공장이나 가죽공장 등의 공장에서 발생되는 공장폐수, 농약 또는 가축의 사육에 따른 농수축산폐수 등은 하천과 지하수를 오염시키고 있어 인류의 존립 자체를 어렵게 만드는 가장 큰 요인으로서 인류가 해결해야할 가장 큰 과제가 되고 있으며, 이러한 수질오염 문제를 해결하기 위하여 많은 노력을 기울이고 있는 실정이다.In general, a large amount of various industrial wastes are generated by industrial advancement worldwide, and these industrial wastes are indiscriminately destroying natural ecosystems around the globe, and environmental destruction is accelerating in the aftermath of the destruction of natural ecosystems. However, the effects of such environmental destruction are becoming more and more threatened, and even the right to human survival is threatened. In particular, due to such industrial waste, the water necessary for human survival is severely polluted, Plant wastewater from domestic wastewater, dyeing factories, leather factories, etc., agricultural and livestock wastewater from livestock farming, etc. are polluting rivers and groundwater, making it difficult for humankind to solve. Has become the biggest challenge, A situation that strives to solve the problem.
이러한 오폐수를 정화하기 위해서는 별도의 오폐수 처리장에서 오폐수를 집수하여 오폐물을 처리하고 있다. 오폐수를 처리하기 위한 가장 일반적인 방법은 화학적 처리 방법으로 오폐수에 화학약품을 투입하여 정화시키고 있으나, 이러한 방법은 화학약품의 투입으로 인하여 유지관리비가 높게 되고 화학 약품의 투입에 따른 2차 오염원인이 되며 발생된 슬러지의 처리에 과다한 비용이 요구되는 문제점이 있었다. 또한, 물리적 처리방법으로 사용되는 여과방법으로는 멤브레인과 같은 여과막이 통상적으로 사용되나 이러한 여과막은 반복적인 사용이 대단히 어려우므로 장기간 사용할 수 없어 일정기간이 경과되면 교체하여야 하므로 유지관리비용이 고가로 된다는 문제점이 있으며, 0.0001미크로(사람머리카락의 100만분의 1)에 불과한 미세한 구멍이 촘촘히 뚫려 있어, 물이 높은 압력으로 부딪히면 순수한 물분자 입자만이 이 작은 기공을 통과하고 입자가 큰 나머지 물질은 걸러지는 다공성물질을 소결하여 성형한 멤브레인필터는 장기간의 사용이 가능하나 제조가 난해하여 제조가가 고가로 되어 널리 사용되지 못하는 문제점이 있었다. In order to purify such waste water, waste water is collected in a separate waste water treatment plant to treat waste. The most common method for treating wastewater is chemical treatment, which is purified by adding chemicals to the wastewater.However, this method has a high maintenance cost due to the input of chemicals and causes secondary pollution due to the input of chemicals. There was a problem that excessive cost is required for the treatment of the sludge generated. In addition, as a filtration method used as a physical treatment method, a filtration membrane such as a membrane is commonly used, but since such a filtration membrane is very difficult to use repeatedly, it cannot be used for a long time and needs to be replaced after a certain period of time, resulting in high maintenance costs. There is a problem, with a fine hole of only 0.0001 micrometers (one millionth of a human's hair), so that when water strikes at high pressure, only pure water molecule particles pass through these small pores and the rest of the larger particles are filtered out. The membrane filter formed by sintering a porous material can be used for a long time, but there is a problem in that it is difficult to manufacture and is not widely used due to the high price.
본 발명의 목적은 이러한 문제점을 해결하기 위한 것으로, 제강 슬래그를 물 및 공기 분사기류에서 냉각시켜 아토마이징 처리된 제강슬래그볼 또는 제강슬래그볼분말과 건조한 고령토분말을 혼합하여 소결시켜 성형시키므로서 제조가가 저렴하면서도 제강슬래그볼이 자체적으로 띠고 있는 자성과 정전기를 이용하여 용수내에 함유된 오염물질이 효과적으로 제거되는 것이 가능한 수처리용 멤브레인필터를 제공하는 것이다.An object of the present invention is to solve this problem, the steelmaking slag is cooled by cooling in water and air injector stream, and the manufacture is made by mixing and sintering and forming the atomized steelmaking slag ball or steelmaking slag ball powder and dry kaolin powder To provide a membrane filter for water treatment, which is inexpensive and can effectively remove contaminants contained in water by using magnetic and static electricity that steelmaking slag has on its own.
본 발명의 이러한 목적은 아토마이징 처리되어 스피넬구조를 갖는 미세한 구형의 제강슬래그볼 또는 미세하게 분말화된 제강슬래그볼분말 90~99wt%와 고령토 1~10wt%와 혼합되어 300~1000℃로 소결성형된 본 발명에 따른 수처리용 멤브레인필터에 의하여 달성된다.This object of the present invention is mixed with 90 ~ 99wt% finely powdered steelmaking slag ball or finely powdered steelmaking slag ball having a spinel structure and kaolin 1 ~ 10wt% atomized and sintered to 300 ~ 1000 ℃ By means of a membrane filter for water treatment according to the present invention.
본 발명에 따른 수처리용 멤브레인필터는 이하에 기술되는 실시예에 의하여 그 특징 및 장점들을 보다 명백하게 이해할 수 있을 것이다.Membrane filter for water treatment according to the present invention will be more clearly understood its features and advantages by the embodiments described below.
본 발명에서 사용되는 상기 제강슬래그볼은 전로에서 용융된 1000℃ 이상의 제강슬래그를 물이 분사되는 분사 기류내에 제강 슬래그를 통과시키는 동시에 급냉시켜 아토마이징 처리가 수행되어 스피넬이 일어나기 때문에 유리와 같은 결정구조를 가지게 되며 이러한 스피넬구조는 대체로 경도가 약 HRC 62로서 내풍화성 및 내수성이 강한 광물로 변형된 슬래그로서 제강 과정중에 생성된 슬래그로 제조되므로 내부에는 Fe₂O₃성분이 포함되어 있어 자성을 띠고 있으며 표면에는 다량의 정전기 전하(-)를 띠고 있는 구조로서, 그 성분은 Ca 42~63 wt%, Fe₂O₃22~35wt%, SiO₂9~11wt%, MgO 6~9wt%, FeO 3wt% 잔량 Fe로 구성되어 있으나, 그 성분범위가 조금씩 편차가 있을 수 있음은 물론이다. 이와 같은 제강슬래그볼의 표면에는 음전하를 띠고 있으므로 용수내의 오염물질인 콜로이드의 제강슬래그볼과 근접한 부분은 양전하를 콜로이드의 반대쪽은 음전하를 띠게 되어 콜로이드는 제강슬래그볼의 표면에 전착되고 전착된 콜로이드의 반대측에는 음전하를 띠게 되므로 다른 콜로이드가 다시 전착되면서 용수내의 오염물질이 제강슬래그볼상에 고정되면서 공극에 포획되게 되는 것이다. The steelmaking slag ball used in the present invention has a crystal structure such as glass because the steelmaking slag melted in the converter is quenched by simultaneously passing the steelmaking slag in the jetted air stream where water is sprayed, and the atomizing treatment is performed to produce spinel. This spinel structure has a hardness of about HRC 62, which is a slag transformed into minerals with strong weathering and water resistance, and is made of slag generated during steelmaking. Therefore, the spinel structure is magnetic because it contains Fe₂O₃. It has the structure of electrostatic charge of (-), and its component is composed of Ca 42 ~ 63 wt%, Fe₂O₃22 ~ 35wt%, SiO₂9 ~ 11wt%, MgO 6 ~ 9wt%, FeO 3wt% balance Fe Of course, the range may be slightly different. Since the surface of the steel slag ball is negatively charged, the area close to the steel slag ball of the colloid, which is a contaminant in the water, is positively charged, and the opposite side of the colloid is negatively charged. The opposite side is negatively charged, so that other colloids are electrodeposited again and contaminants in the water are fixed on the steel slag balls and trapped in the voids.
본 발명의 실시예에 따른 수처리용 멤브레인필터는 100~350㎛의 직경을 갖는 구형의 제강슬래그볼 97 wt%와, 건조된 미세한 고령토분말 3 wt%를 혼합하고 이를 약 850℃에서 2시간동안 소결성형하였다. 본실시예에서 상기 수처리용 멤브레인필터(A)는, 도1에 촬영된 바와 같이,원통관형상으로 성형되었다. 이와 같이 성형된 수처리 멤브레인필터(A)의 표면을 40배로 확대촬영하여 보면, 도2에 촬영된 바와 같이, 그 표면이 울퉁불퉁하고 미세한 다수의 공극이 형성되어 있으며, 100배로 확대촬영하면 도3에 도시된 바와 같이 그 공극이 더욱 확대되고, 250배로 확대활영된 도4의 단면확대사진에서는 그 공극이 확대된 형상이 도시된 바와 같이, 오염물질은 이와 같이 제강슬래그볼과 고령토사이에 형성된 공극에 포획되게 되는 구조를 가지는 것이다.In the membrane filter for water treatment according to the embodiment of the present invention, 97 wt% of a spherical steel slag ball having a diameter of 100 to 350 μm and 3 wt% of dried fine kaolin powder are mixed and sintered at about 850 ° C. for 2 hours. Molded. In the present embodiment, the membrane filter (A) for water treatment was formed into a cylindrical tube shape, as photographed in FIG. As shown in FIG. 2, the surface of the water-treated membrane filter A formed as described above is enlarged by 40 times. As shown in FIG. 2, the surface is rugged and has a large number of fine pores. As shown, in the cross-sectional enlarged view of FIG. 4, which is further enlarged and 250 times magnified, as shown in the enlarged shape of the void, contaminants are thus formed in the void formed between the steel slag ball and the kaolin. It has a structure to be captured.
본 실시예에서 상기 제강슬래그볼은 100~350㎛의 입경을 갖는 것이 사용되었으나 경우에 따라 다양한 크기의 제강슬래그볼이나 제강슬래그분말을 사용하는 것도 가능하다.In the present embodiment, the steel slag ball has a particle diameter of 100 ~ 350㎛ was used, but it is also possible to use steel slag ball or steel slag powder of various sizes in some cases.
상기 고령토분말의 혼합비율은 제강슬래그볼의 직경이 크게 되면 결합력을 높히기 위하여 혼합비율이 증대된다. 본 실시예에서 바인더로서 고령토(Clay)를 사용하였으나 다른 재질이 점토나 다른 재질이 사용될 수도 있다. The mixing ratio of the kaolin powder is increased in order to increase the bonding force when the diameter of the steelmaking slag ball is increased. Although kaolin is used as a binder in the present embodiment, other materials may be clay or other materials.
이와 같은 본 발명에 따른 수처리 멤브레인필터는 예를 들면, 수돗물의 여과시 중금속이나 콜로이드상의 물질은 공극을 통과하지 못하거나 통과한다고 하더라도 제강슬래그볼과 대전되어 공극상에 포획되므로 물의 정화성능이 탁월하게 수행되게 되는 것이다.In the water treatment membrane filter according to the present invention, for example, even when heavy metals or colloidal substances do not pass or pass through the pores, they are charged with the steel slag balls and trapped in the pores, so that the water purification performance is excellent. It will be done.
이상과 같이 본 발명에 따른 수처리용 멤브레인필터는 제강슬래그볼과 바인더로서 고령토가 혼합되어 소결성형시켜 수처리용 멤브레인필터가 제조되므로 제조가 단순하여 제조가 용이하므로 제조가가 저렴하게 되고 음으로 대전된 제강슬래그볼의 표면의 음전하 및 자성에 의하여 공극을 통과하는 오염물질의 포획성능이 우수하여 여과(membrane)성능이 우수하다는 효과가 있다.As described above, the membrane filter for water treatment according to the present invention is manufactured as a membrane filter for water treatment by sintering and molding kaolin as a steelmaking slag ball and a binder. Due to the negative charge and magnetism of the steel slag ball, the trapping performance of contaminants passing through the pores is excellent, and thus, the membrane performance is excellent.
도1은 본 발명의 일실시예에 따른 수처리용 멤브레인필터의 사시사진 1 is a perspective photo of a membrane filter for water treatment according to an embodiment of the present invention
도2는 도1의 수처리용 멤브레인필터의 40배로 확대촬영된 단면확대사진Figure 2 is an enlarged cross-sectional photograph taken at 40 times the membrane filter for water treatment of Figure 1
도3은 도1의 수처리용 멤브레인필터의 100배로 확대촬영된 단면확대사진Figure 3 is an enlarged cross-sectional photograph taken at 100 times the membrane filter for water treatment of Figure 1
도4는 도1의 수처리용 멤브레인필터의 250배로 확대활영된 단면확대사진4 is an enlarged cross-sectional view of the membrane filter for water treatment of FIG.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101668474B1 (en) * | 2016-04-07 | 2016-10-28 | 주식회사 코엔텍 | Porous filter composition for improving quality of water |
KR101709621B1 (en) * | 2016-07-12 | 2017-03-08 | 주식회사 코엔텍 | Water quality improving apparatus by the porous filter composition for improving quality of water |
KR20200073394A (en) | 2018-12-14 | 2020-06-24 | 경상대학교산학협력단 | Membrane filter with adsorbed carbon nano tube and methoed for preparing thereof |
Families Citing this family (2)
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KR101007779B1 (en) * | 2003-12-23 | 2011-01-14 | 재단법인 포항산업과학연구원 | Shaped Body Using Slag Generated from Oxygen Steel Making Process and Method for Preparing the Same |
KR101720764B1 (en) * | 2015-11-13 | 2017-04-03 | 주식회사 네오이앤에스 | unsintered inorganic membrane for water treatment using slag and fly ash, manufacturing method thereof |
Citations (4)
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KR19990007639A (en) * | 1998-10-15 | 1999-01-25 | 이기강 | Ceramic composition using solid waste and its manufacturing method |
JP2000279986A (en) * | 1999-03-29 | 2000-10-10 | Takako Morishige | Porous filter medium for water cleaning |
KR20010073244A (en) * | 2000-01-13 | 2001-08-01 | 정명화 | A method for manufacturing fixed tubular type biocarrier and a fixed biocarrier for biological wastewater treatment and offensive odor gas removal manufactured using the method |
KR20030080690A (en) * | 2002-04-10 | 2003-10-17 | 한국지질자원연구원 | Inorganic Media for Wastewater Treatment using Wastes and its Manufacture |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19990007639A (en) * | 1998-10-15 | 1999-01-25 | 이기강 | Ceramic composition using solid waste and its manufacturing method |
JP2000279986A (en) * | 1999-03-29 | 2000-10-10 | Takako Morishige | Porous filter medium for water cleaning |
KR20010073244A (en) * | 2000-01-13 | 2001-08-01 | 정명화 | A method for manufacturing fixed tubular type biocarrier and a fixed biocarrier for biological wastewater treatment and offensive odor gas removal manufactured using the method |
KR20030080690A (en) * | 2002-04-10 | 2003-10-17 | 한국지질자원연구원 | Inorganic Media for Wastewater Treatment using Wastes and its Manufacture |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101668474B1 (en) * | 2016-04-07 | 2016-10-28 | 주식회사 코엔텍 | Porous filter composition for improving quality of water |
KR101709621B1 (en) * | 2016-07-12 | 2017-03-08 | 주식회사 코엔텍 | Water quality improving apparatus by the porous filter composition for improving quality of water |
KR20200073394A (en) | 2018-12-14 | 2020-06-24 | 경상대학교산학협력단 | Membrane filter with adsorbed carbon nano tube and methoed for preparing thereof |
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