KR20160064838A - Mathod for manufacturing plat plate type ceramic membrane to purify highly concentrated livestock waste water and plat plate type ceramic membrane therefrom - Google Patents
Mathod for manufacturing plat plate type ceramic membrane to purify highly concentrated livestock waste water and plat plate type ceramic membrane therefrom Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 63
- 239000012528 membrane Substances 0.000 title claims abstract description 59
- 239000002351 wastewater Substances 0.000 title claims abstract description 49
- 244000144972 livestock Species 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 30
- 238000000746 purification Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0083—Thermal after-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0095—Drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/06—Flat membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/108—Inorganic support material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
- B01D71/025—Aluminium oxide
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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Abstract
Description
본 발명은 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 및 이로부터 제조된 평관형 세라믹 분리막에 관한 것으로서, 보다 상세하게는 내마모성, 내화학성 및 내열성이 우수하면서도 넓은 pH 범위, 고온 공정, 고농도 및 고점도의 축산폐수를 효율적으로 정화시킬 수 있고, 폐수를 처리할 수 있는 큰 단면적과 분리막을 설치하는 장치의 소형화가 가능한 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 및 이로부터 제조된 평관형 세라믹 분리막에 관한 것이다.The present invention relates to a method for producing a flat tubular ceramic membrane for purification of livestock wastewater of high concentration and a flat tubular ceramic membrane produced therefrom. More particularly, the present invention relates to a flat tubular ceramic membrane which is excellent in abrasion resistance, chemical resistance and heat resistance, The present invention relates to a method of manufacturing a flat tubular ceramic separator for purification of livestock wastewater having a high concentration capable of effectively purifying livestock wastewater having a high viscosity and capable of processing wastewater and a device for installing a separation membrane, Separator.
일반적으로, 축산폐수는 생활하수가 가지고 있는 오염물질 보다 수백 배 내지 많게는 수만 배를 넘는 고농도의 오염물질을 함유하고 있다. 축산폐수에 함유된 고형물, 유기물질 및 질소 농도는 수처리 공정의 효율을 저해할 뿐만 아니라 시설의 유지관리 및 보수에 많은 어려움을 준다.In general, livestock wastewater contains high concentrations of pollutants that are hundreds of times more than tens of thousands of times more pollutants than domestic wastewater. The concentration of solids, organic matter and nitrogen contained in livestock wastewater not only impedes the efficiency of the water treatment process but also makes maintenance and maintenance of the facility difficult.
축산폐수에 함유된 고형물은 전체 오염물질 부하의 약 80% 내지 85%를 차지하고 있어 축산폐수를 고형물과 액상물로 분리하는 고액분리 공정은 축산폐수 처리시스템에서 중요한 역할을 수행한다. 기존의 축산폐수 처리시스템은 고농도 폐수를 고형물과 액상물로 분리하기 위하여 이를 응집한 후 원심분리하고 있다. 하지만, 이러한 경우, 고액분리된 액상물 내 부유오염 물질이 수천 ppm에 이를 정도로 효율이 낮으며 분리된 고형물의 함수율도 약 80%로서 이를 퇴비의 원료로 사용하기에 어려움이 많다.Solids contained in livestock wastewater accounts for about 80% to 85% of the total pollutant load, so solid-liquid separation processes that separate livestock wastewater into solid and liquid waters play an important role in livestock wastewater treatment systems. Conventional livestock wastewater treatment system concentrates and concentrates high - concentration wastewater to separate solid and liquid wastewater. However, in such a case, the efficiency of the suspended solids in the solid-liquid separated liquid is low to several thousands ppm and the water content of the separated solids is about 80%, which makes it difficult to use the material as a raw material for the compost.
또한 폐수에 함유된 유기물질의 경우 생물학적 방법을 이용하여 메탄으로 전환하는 혐기소화 공정이 많이 이용된다. 하지만, 부유 고형물이 많은 폐수의 경우, 혐기조의 유지관리 면에서 기계적 고장, 배관 및 펌프 막힘과 같은 문제들이 발생한다.In the case of organic substances contained in wastewater, an anaerobic digestion process which converts biomass to methane is often used. However, in the case of wastewater with a large amount of suspended solids, problems such as mechanical failure, pipe clogging, and pump clogging occur in the maintenance of the anaerobic tank.
또한 축산폐수는 일반적으로 수천 ppm의 높은 암모니아성 질소가 함유되어 있다. 이렇게 고농도로 함유된 암모니아성 질소의 경우, 생물학적으로 처리하는 것에는 한계가 있으며 높은 암모니아성 질소 농도는 질소 제거 미생물의 활동 자체에 저해 작용을 하는 것으로 보고되고 있다. 따라서 이에 대한 해결책으로 폐수를 희석함으로써 농도를 낮추는 방법과 물리화학적 탈질 방법이 이용되고 있다. In addition, livestock wastewater generally contains thousands of ppm of high ammonia nitrogen. Such high concentration of ammonia nitrogen has limitations in biological treatment and high ammonia nitrogen concentration has been reported to inhibit the activity of the nitrogen-removing microorganism itself. As a solution to this problem, a method of lowering the concentration by diluting wastewater and a physico-chemical denitrification method are used.
한편, 물을 정화시키는데 사용되는 종래의 분리막 재질들은 PS, PES, PVDF 등 폴리머 재질로 이루어진 고분자 분리막들이 주로 활용되고 있다. 이러한 분리막들은 일반적인 정수공정, 해수담수화 공정, 초순수 생산 공정, 하수처리공정 등에 널리 활용되고 있다. Meanwhile, polymer separation membranes made of polymer materials such as PS, PES and PVDF are mainly used as conventional separation membrane materials used for purifying water. These membranes are widely used in general purification processes, seawater desalination processes, ultrapure water production processes, and sewage treatment processes.
분리막 기술은 현재 위와 같은 공정과 같은 일반화된 공정 외에 정밀화학 공정, 축산폐수처리공정, 산업폐수 처리공정, 식품 정제공정, 제약 정제공정, 바이오가스발전 공정 등에 분리, 정제 및 농축 분야에 다양하게 막을 이용할 수 있는 농축 기술의 적용이 요구되고 있다.In addition to generalized processes such as the above-mentioned processes, the membrane technology can be applied to various fields such as fine chemical process, livestock wastewater treatment process, industrial wastewater treatment process, food purification process, pharmaceutical refining process, biogas power generation process, The application of available enrichment technology is required.
그러나 새로운 농축 기술의 적용이 요구되는 분야, 특히 축산폐수에서는 넓은 pH 범위, 고온 공정, 고농도 및 고점도 시료 특성들에 의해 기존의 폴리머 재질의 경우 마모 문제, 내화학성, 내열성이 약하여 사용의 한계가 있어 그 적용에 한계점이 있고, 고농도 시료의 농축을 위한 소재의 다변화가 긴급하게 요구되고 있다. However, due to the wide pH range, high temperature process, high concentration and high viscosity sample characteristics in the field where new concentration technique is required, especially in animal wastewater, existing polymer materials are limited in their abrasion resistance, chemical resistance and heat resistance There are limitations in its application, and diversification of materials for concentration of high concentration samples is urgently required.
또한, 종래의 분리막은 구조에 있어 평관형(도 5 참조), 튜브형(도 6 참조)이 대부분인데, 이는 폐수를 처리할 수 있는 단면적이 적고 장치의 부피가 매우 큰 단점이 있다.In addition, the conventional separation membrane has a flat tubular shape (see FIG. 5) and a tubular shape (see FIG. 6) in its structure, which has a disadvantage in that the sectional area for treating wastewater is small and the volume of the apparatus is very large.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 본 발명의 목적은 내마모성, 내화학성 및 내열성이 우수하면서도 넓은 pH 범위, 고온 공정, 고농도 및 고점도의 축산폐수를 효율적으로 정화시킬 수 있고, 폐수를 처리할 수 있는 큰 단면적과 분리막을 설치하는 장치의 소형화가 가능한 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 및 이로부터 제조된 평관형 세라믹 분리막을 제공하고자 하는 것이다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for efficiently purifying livestock wastewater having excellent abrasion resistance, chemical resistance and heat resistance, The present invention provides a method of manufacturing a flat tubular ceramic membrane for purification of livestock wastewater and a flat tubular ceramic membrane produced therefrom, which can miniaturize a large cross-sectional area capable of treating wastewater and a device for installing the membrane.
본 발명의 상기 및 다른 목적과 이점은 바람직한 실시예를 설명한 하기의 설명으로부터 보다 분명해 질 것이다.These and other objects and advantages of the present invention will become more apparent from the following description of a preferred embodiment thereof.
상기 목적은, 평관형 세라믹 지지체를 제조하는 제1단계(S10)와 평관형 세라믹 지지체를 코팅할 코팅액을 혼합하여 제조하는 제2단계(S20)와, 제1단계에서 제조된 평관형 세라믹 지지체에 제2단계에서 제조된 코팅액을 도포하기 위해 Dip 코팅하여 분리막을 제조하는 제3단계(S30)와 제3단계에서 제조된 분리막을 건조시키는 제4단계(S40)와 제4단계에서 건조된 분리막을 소성시켜 세라믹 분리막을 제조하는 제5단계(S50)를 포함하는 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법에 의해 달성된다.The above object can be accomplished by a method of manufacturing a flat tubular ceramic support, comprising the steps of: (a) forming a flat tubular ceramic support by a first step (S10); (b) mixing a flat tubular ceramic support with a coating solution; A third step (S30) for preparing a separation membrane by dip coating to apply the coating solution prepared in the second step, a fourth step (S40) for drying the separation membrane prepared in the third step, and a separation membrane dried in the fourth step And a fifth step (S50) of producing a ceramic separator membrane by sintering the ceramic separator membrane.
여기서, 상기 제1단계는, 세라믹 지지체를 구성하는 원료를 혼합하는 제1공정(S11)과 제1공정에서 혼합된 혼합물을 혼련하는 제2공정(S12)과, 제2공정에서 혼련된 혼합물을 압출기를 통해 압출하여 평관형의 압출체를 제조하는 제3공정(S13)와 제3공정에서 압출된 압출체를 건조시키는 제4공정(S14)과 제4공정에서 건조된 압출체를 소성시켜 평관형 세라믹 지지체를 제조하는 제5공정(S15)을 포함할 수 있다.Here, the first step includes a first step (S11) of mixing the raw materials constituting the ceramic support, a second step (S12) of kneading the mixture mixed in the first step, and a step A third step (S13) of producing a flat tubular extruded body by extruding through an extruder, a fourth step (S14) of drying the extruded extruded body in the third step, and an extruded body dried in the fourth step, And a fifth step (S15) of manufacturing a tubular ceramic support.
바람직하게는, 상기 제1공정(S11)의 원료는 Al2O3, SiO2, clay 및 M/C binder를 포함할 수 있다.Preferably, the material of the first step (S11) may include an Al 2 O 3, SiO 2, clay and the M / C binder.
바람직하게는, 상기 제2단계(S20)의 상기 코팅액은, Al2O3, M/C binder, 증류수 및 에탄올을 혼합하여 제조된 것일 수 있다.Preferably, the coating solution in the second step (S20) may be prepared by mixing Al 2 O 3 , M / C binder, distilled water and ethanol.
바람직하게는, 상기 분리막을 대기 분위기 상태인 소성로에서 1,250℃의 온도로 2시간 정도 소성시킨 것일 수 있다.Preferably, the separation membrane is fired at a temperature of 1,250 DEG C for about 2 hours in a firing furnace in an atmospheric state.
또한 상기 목적은, 상술한 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법에 의해 제조된 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막에 의해 달성된다.The above object is also achieved by a flat tubular ceramic membrane for purification of livestock wastewater having a high concentration, which is produced by the above-described method for producing a flat tubular ceramic membrane for purification of animal wastewater with high concentration.
여기서, 상기 분리막은 평관 형상이되, 평관의 내부에 길이 방향으로 긴 동공을 다수개 구비하고 있는 것일 수 있다.Here, the separation membrane may have a flat pipe shape and may have a plurality of long pores in the longitudinal direction inside the flat pipe.
본 발명에 따르면, 내마모성, 내화학성 및 내열성이 우수하면서도 넓은 pH 범위, 고온 공정, 고농도 및 고점도의 축산폐수를 효율적으로 정화시킬 수 있고, 폐수를 처리할 수 있는 큰 단면적과 분리막을 설치하는 장치의 소형화가 가능한 등의 효과를 가진다.According to the present invention, it is possible to provide a device for installing a separation membrane and a large cross-sectional area capable of efficiently cleaning livestock wastewater having a wide pH range, high temperature process, high concentration and high viscosity while having excellent abrasion resistance, chemical resistance and heat resistance, It is possible to reduce the size and the like.
도 1은 본 발명의 일 양상에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막을 제조하는 공정도이다.
도 2는 본 발명의 일 양상에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 평관형 세라믹 지지체를 제조하는 공정도이다.
도 3은 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막을 보여주는 사진이다.
도 4는 도 3을 확대한 사진이다.
도 5는 종래의 평관형 폴리머 분리막을 보여주는 사진이다.
도 6은 종래의 다른 튜브형 세라믹 분리막을 보여주는 사진이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram for producing a flat tubular ceramic membrane for purification of animal wastewater at a high concentration according to an aspect of the present invention. FIG.
2 is a process diagram for manufacturing a flat tubular ceramic support of a flat tubular ceramic membrane for purification of animal wastewater at a high concentration according to an aspect of the present invention.
3 is a photograph showing a flat tubular ceramic membrane for purification of animal wastewater of high concentration according to an embodiment of the present invention.
Fig. 4 is an enlarged photograph of Fig.
5 is a photograph showing a conventional flat tubular polymer membrane.
6 is a photograph showing another conventional tubular ceramic separator.
이하, 본 발명의 실시예와 도면을 참조하여 본 발명을 상세히 설명한다. 이들 실시예는 오로지 본 발명을 보다 구체적으로 설명하기 위해 예시적으로 제시한 것일 뿐, 본 발명의 범위가 이들 실시예에 의해 제한되지 않는다는 것은 당업계에서 통상의 지식을 가지는 자에 있어서 자명할 것이다.Hereinafter, the present invention will be described in detail with reference to embodiments and drawings of the present invention. It will be apparent to those skilled in the art that these embodiments are provided by way of illustration only for the purpose of more particularly illustrating the present invention and that the scope of the present invention is not limited by these embodiments .
본 발명의 일 양상에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막을 제조하는 공정도인 도 1을 참조하면, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법은 평관형 세라믹 지지체를 제조하는 제1단계(S10)와 평관형 세라믹 지지체를 코팅할 코팅액을 혼합하여 제조하는 제2단계(S20)와, 제1단계에서 제조된 평관형 세라믹 지지체에 제2단계에서 제조된 코팅액을 도포하기 위해 Dip 코팅하여 분리막을 제조하는 제3단계(S30)와 제3단계에서 제조된 분리막을 건조시키는 제4단계(S40)와 제4단계에서 건조된 분리막을 소성시켜 세라믹 분리막을 제조하는 제5단계(S50)를 포함한다.1, which is a process chart for producing a flat tubular ceramic membrane for purification of livestock wastewater according to an aspect of the present invention, a method for manufacturing a flat tubular ceramic membrane for purification of livestock wastewater according to the present invention comprises: A second step (S20) of mixing a coating liquid to be coated with the flat tubular ceramic support (S10), and a second step (S20) of mixing the coating liquid for coating the flat tubular ceramic support A third step (S30) of producing a separation membrane, a fourth step (S40) of drying the separation membrane produced in the third step, and a fifth step (S50) of manufacturing the ceramic separation membrane by firing the separation membrane dried in the fourth step .
본 발명의 일 양상에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 중 제1단계(S10)는 평관형 세라믹 지지체를 제조하는 단계로서, 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 지지체를 제조하는 공정도인 도 2로부터 제조한다.The first step (S10) of the method for producing a flat tubular ceramic separator for purifying livestock wastewater according to an aspect of the present invention is a step of producing a flat tubular ceramic support, 2, which is a process chart for producing a support for a flat tubular ceramic separator.
본 명세서에서 "평관형"이라 함은, 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막을 보여주는 사진인 도 3과 도 3을 확대한 사진인 도 4를 참조하면, 편평한 관의 형태로 이루어진 것을 의미한다.In the present specification, the term " flat tubular "refers to a flattened ceramic membrane for purification of animal wastewater of high concentration according to an embodiment of the present invention, Quot; "
먼저, 세라믹 지지체를 구성하는 원료를 혼합하는 제1공정(S11)과 제1공정에서 혼합된 혼합물을 혼련하는 제2공정(S12)과, 제2공정에서 혼련된 혼합물을 압출기를 통해 압출하여 평관형의 압출체를 제조하는 제3공정(S13)와 제3공정에서 압출된 압출체를 건조시키는 제4공정(S14)과 제4공정에서 건조된 압출체를 소성시켜 평관형 세라믹 지지체를 제조하는 제5공정(S15)을 포함한다.First, a first step (S11) of mixing the raw materials constituting the ceramic support, a second step (S12) of kneading the mixture mixed in the first step, a step of mixing the mixture kneaded in the second step, A third step (S13) of producing a tubular extruded body, a fourth step (S14) of drying the extruded extruded body in the third step and a extruded body dried in the fourth step are fired to manufacture a flat tubular ceramic body And a fifth step (S15).
제1공정(S11)은 세라믹 지지체를 구성하는 원료를 혼합하는 공정으로서 알루미나(Al2O3), 실리카(SiO2), 점토(clay), M/C binder를 믹서기를 이용하여 혼합하는 공정이다. 이 때 혼합하는 공정은 건식 혼합인 것이 바람직하다.A first step (S11) is a step of mixing the alumina as a step of mixing the raw materials constituting the ceramic substrate (Al 2 O 3), silica (SiO 2), clay (clay), M / C binder using a mixer . In this case, the mixing process is preferably dry mixing.
제2공정(S12)은 제1공정에서 혼합된 혼합물은 건식 혼합할 경우 분말로 되어 있어 이들 분말에 수분을 첨가하여 혼련기로 30분 동안 혼련하는 공정이다.In the second step (S12), the mixed mixture in the first step is powder when dry mixed, and water is added to these powders and kneaded with a kneader for 30 minutes.
제3공정(S13)은 제2공정에서 혼련된 혼합물을 압출기를 통해 압출하여 평관형의 압출체를 제조하는 공정이다. The third step (S13) is a step of producing a flat tubular extrudate by extruding the mixture kneaded in the second step through an extruder.
제4공정(S14)은 제3공정에서 압출된 압출체를 건조시키는 공정으로서 압출된 평관형의 압출체를 상온에서 80℃까지 24시간 열풍건조기에서 건조시키는 것이 바람직하다.In the fourth step (S14), as the step of drying the extruded material extruded in the third step, it is preferable that the extruded extruded flat tubular material is dried in a hot-air drier for 24 hours from room temperature to 80 deg.
제5공정(S15)은 제4공정에서 건조된 압출체를 소성시켜 평관형 세라믹 지지체를 제조하는 공정으로서, 건조된 압출체(건조체)를 대기 분위기 상태인 소성로에서 1,250℃의 온도로 2시간 정도 소성시키는 것이 바람직하다. 이러한 공정을 거쳐 평관형 세라믹 지지체가 완성된다.The fifth step (S15) is a step of producing a flat tubular ceramic support by firing the extruded body dried in the fourth step, wherein the dried extrudate (dried body) is heated at a temperature of 1,250 DEG C for about 2 hours It is preferable to sinter it. Through these processes, a flat tubular ceramic support is completed.
또한 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 중 제2단계(S20)는 평관형 세라믹 지지체를 코팅할 코팅액을 혼합하여 제조하는 단계로서, Al2O3, M/C binder, 증류수, 에탄올을 혼합하여 코팅액을 제조하는데, 볼밀을 이용하여 24시간 동안 습식 혼합하는 것이 바람직하다.In addition, as a step for preparing a mixture of a high concentration of the second stage 2 (S20) of the manufacturing method of the livestock waste water purification flat tubular ceramic membrane coating liquid to coat a flat tubular ceramic support according to one embodiment of the present invention, Al 2 O 3, M / C binder, distilled water and ethanol to prepare a coating solution. It is preferable that wet mixing is performed using a ball mill for 24 hours.
또한 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 중 제3단계(S30)는 제1단계에서 제조된 평관형 세라믹 지지체에 제2단계에서 제조된 코팅액을 도포하는 단계로서, Dip 코팅하여 분리막을 제조하는 단계이다. 이때 평관형 세라믹 지지체를 담지 방식으로 분리막을 코팅하는 것이 바람직하다.In a third step S30 of the method for manufacturing a flat tubular ceramic separator for purification of animal wastewater according to an embodiment of the present invention, the coating liquid prepared in the second step is applied to the flat tubular ceramic support prepared in the first step As a step, Dip coating is performed to prepare a separation membrane. At this time, it is preferable to coat the separator by supporting the flat tubular ceramic support.
또한 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 중 제4단계(S40)는 제3단계에서 제조된 분리막을 건조시키는 단계(S40)로서 분리막을 약 60℃에서 12시간 정도 건조시키는 것이 바람직하다. In a fourth step S40 of the method for manufacturing a flat tubular ceramic separation membrane for purification of animal wastewater according to an embodiment of the present invention, the separation membrane produced in the third step is dried in step S40, It is preferable to dry it for about 12 hours.
또한 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법 중 제5단계(S50)는 제4단계에서 건조된 분리막을 소성시켜 세라믹 분리막을 제조하는 단계로서, 건조된 평관형 세라믹 분리막을 대기 분위기 상태인 소성로에서 1,250℃의 온도로 2시간 정도 소성시키는 것이 바람직하다. 이러한 공정을 거쳐 본 발명의 다른 양상에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막이 완성된다. In a fifth step S50 of the method for manufacturing a flat tubular ceramic membrane for purification of animal wastewater according to an embodiment of the present invention, the separation membrane dried in the fourth step is fired to prepare a ceramic membrane, It is preferable to sinter the tubular ceramic separator at a temperature of 1,250 DEG C for about two hours in a firing furnace in an atmospheric state. Through these processes, a high-concentration flat-type ceramic membrane for purification of animal wastewater according to another aspect of the present invention is completed.
본 발명의 다른 양상인 고농도의 축산폐수 정화용 평관형 세라믹 분리막에 따르면 평관형(편평한 관형)이고 평관의 내부에 길이 방향으로 긴 동공을 다수개 구비한다. 본 발명의 일 실시예에 따른 고농도의 축산폐수 정화용 평관형 세라믹 분리막을 보여주는 사진인 도 3과 도 3을 확대한 사진인 도 4를 참조하면 쉽게 알 수 있다. According to another aspect of the present invention, a flat tubular ceramic separator for purification of animal wastewater according to the present invention has a flat tubular shape (flat tubular shape) and a plurality of longitudinally long pores inside the flat tube. 3 and FIG. 3 which are photographs showing a high-concentration flat-type ceramic membrane for purification of animal wastewater according to an embodiment of the present invention, which is an enlarged view of FIG.
이러한 구조를 가짐으로써 종래의 분리막에 비해 폐수를 처리할 수 있는 단면적이 매우 크고 이를 적재할 장치의 부치를 줄일 수 있는 장점이 있다. 또한 평관형의 형태로 제작함으로써 콤팩트하고 안정적으로 폐수를 처리할 수 있다.By having such a structure, the cross-sectional area for treating the wastewater is much larger than that of the conventional separation membrane, and there is an advantage that the butt of the device for loading the wastewater can be reduced. In addition, it can be processed compactly and stably with wastewater by making it into a flat tubular shape.
본 명세서에서는 본 발명자들이 수행한 다양한 실시예 가운데 몇 개의 예만을 들어 설명하는 것이나 본 발명의 기술적 사상은 이에 한정하거나 제한되지 않고, 당업자에 의해 변형되어 다양하게 실시될 수 있음은 물론이다. It is to be understood that the present invention is not limited to the above embodiments and various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
상기 제1단계는,
세라믹 지지체를 구성하는 원료를 혼합하는 제1공정(S11)과 제1공정에서 혼합된 혼합물을 혼련하는 제2공정(S12)과, 제2공정에서 혼련된 혼합물을 압출기를 통해 압출하여 평관형의 압출체를 제조하는 제3공정(S13)와 제3공정에서 압출된 압출체를 건조시키는 제4공정(S14)과 제4공정에서 건조된 압출체를 소성시켜 평관형 세라믹 지지체를 제조하는 제5공정(S15)을 포함하는 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법. The method according to claim 1,
In the first step,
A first step (S11) of mixing raw materials constituting the ceramic support, a second step (S12) of kneading the mixture mixed in the first step, a step of mixing the mixture obtained in the second step, A third step (S13) of producing an extruded body, a fourth step (S14) of drying the extruded extruded body in the third step, and a fifth step (S14) of firing the extruded body dried in the fourth step to produce a flat tubular ceramic support (S15). ≪ RTI ID = 0.0 > 11. < / RTI >
상기 제1공정(S11)의 원료는 Al2O3, SiO2, clay 및 M/C binder를 포함하는 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법. 3. The method of claim 2,
Material of the first step (S11) is Al 2 O 3, SiO 2, clay and a process for producing a M / C binder a high concentration of livestock waste water purification flat tubular ceramic membrane, characterized in that comprises a.
상기 제2단계(S20)의 상기 코팅액은,
Al2O3, M/C binder, 증류수 및 에탄올을 혼합하여 제조된 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법.The method according to claim 1,
The coating liquid of the second step (S20)
Al 2 O 3 , an M / C binder, distilled water, and ethanol. The method for producing a flat tubular ceramic membrane for purification of animal wastewater according to claim 1,
상기 제5단계(S50)는,
상기 분리막을 대기 분위기 상태인 소성로에서 1,250℃의 온도로 2시간 정도 소성시킨 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막의 제조방법.The method according to claim 1,
In the fifth step S50,
Wherein the separation membrane is calcined at a temperature of 1,250 DEG C for about 2 hours in a calcination furnace in an atmospheric state.
상기 분리막은 평관 형상이되, 평관의 내부에 길이 방향으로 긴 동공을 다수개 구비하고 있는 것을 특징으로 하는, 고농도의 축산폐수 정화용 평관형 세라믹 분리막.The method according to claim 6,
Wherein the separation membrane has a flat shape and has a plurality of long pores in the longitudinal direction inside the flat pipe.
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| KR102654038B1 (en) * | 2023-12-28 | 2024-04-04 | 주식회사 앱스필 | A ceramic separation membrane for water treatment and a method for forming of a surface modificaion layer of the same |
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