KR20230084086A - Ceramic coated zeolite, nonwoven fabric including ceramic coated zeolite for adsorbing heavy metal and preparing method of thereof - Google Patents
Ceramic coated zeolite, nonwoven fabric including ceramic coated zeolite for adsorbing heavy metal and preparing method of thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 69
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 65
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 59
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000010457 zeolite Substances 0.000 title claims abstract description 59
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 3
- 239000011133 lead Substances 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3238—Inorganic material layers containing any type of zeolite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- 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
- C02F2103/06—Contaminated groundwater or leachate
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Textile Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
본 발명은 세라믹 코팅 제올라이트, 세라믹 코팅 제올라이트를 포함하는 중금속 흡착용 부직포 및 이의 제조방법에 관한 것이다.The present invention relates to a ceramic-coated zeolite, a nonwoven fabric for adsorbing heavy metals containing the ceramic-coated zeolite, and a method for preparing the same.
급속한 산업화와 도시화에 따른 폐수의 배출량 증가로 인하여 각종 중금속을 포함한 유동성 물질이 배출되어 수질 오염뿐만 아니라 인간의 건강 및 생태계에 큰 피해를 주고 있으며, 이를 처리하기 위한 수처리 방법이 개발되고 있다. 오일 또는 산업폐수 등에 포함되어 있는 중금속을 제거하기 위한 방법으로 분리막을 이용한 여과, 이온교환수지, 화학적 침전법 및 흡착법 등의 다양한 물리화학적 방법들이 적용되고 있으며, 그 중에서도 활성탄, 합성 제올라이트, 키토산 등 다양한 무기 물질이 폐수 중의 중금속 흡착제를 통해 중금속 제거 방법이 사용되고 있으나, 제거 효율이 높은 소재는 고가로 인해 경제성이 낮고, 대부분의 소재는 상평형 특성상 흡착후 배출을 통해 흡착 효율이 현저히 떨어지는 단점이 있다.Due to the increase in wastewater discharge due to rapid industrialization and urbanization, fluid substances including various heavy metals are discharged, which not only pollutes water but also causes great damage to human health and ecosystems, and a water treatment method is being developed to treat them. As a method for removing heavy metals contained in oil or industrial wastewater, various physicochemical methods such as filtration using separation membranes, ion exchange resins, chemical precipitation and adsorption methods are applied. Inorganic substances are used to remove heavy metals through heavy metal adsorbents in wastewater, but materials with high removal efficiency have low economic feasibility due to their high cost, and most materials have the disadvantage of significantly lowering the adsorption efficiency through discharge after adsorption due to their phase equilibrium characteristics.
또한, 중금속에 의한 오염은 여러 종류의 중금속이 혼합되어 있는 경우가 많아서 제거하고자 하는 중금속을 선택적으로 제거하기가 힘든 경우가 많다는 문제점이 있다. 따라서, 보다 간단한 공정을 통해 제조 가능하며, 선택적으로 중금속을 흡착 제거하는 성능이 우수한 천연소재에 대한 개발이 요구되는 실정이다.In addition, contamination by heavy metals has a problem in many cases that it is often difficult to selectively remove heavy metals to be removed because many types of heavy metals are mixed. Therefore, there is a need to develop natural materials that can be manufactured through a simpler process and have excellent performance in selectively adsorbing and removing heavy metals.
한국공개특허 제2019-0107852호에 중금속 흡착용 부직포의 제조 방법 및 이에 의하여 제조된 중금속 흡착용 부직포에 관한 기술이 개시되어 있고, 한국공개특허 제2021-0097978호에 산업폐수 중 선택적 중금속 제거용 흡착 소재 및 이의 제조방법이 개시되어 있으나, 본 발명의 세라믹 코팅 제올라이트, 세라믹 코팅 제올라이트를 포함하는 중금속 흡착용 부직포 및 이의 제조방법에 관하여 개시된 바 없다.Korean Patent Publication No. 2019-0107852 discloses a method for manufacturing a nonwoven fabric for adsorbing heavy metals and technology for the nonwoven fabric for adsorbing heavy metals prepared thereby, and Korean Patent Publication No. 2021-0097978 discloses adsorption for selective removal of heavy metals from industrial wastewater. A material and a manufacturing method thereof are disclosed, but the ceramic coated zeolite of the present invention, a nonwoven fabric for adsorbing heavy metals containing the ceramic coated zeolite, and a manufacturing method thereof have not been disclosed.
본 발명은 상기와 같은 요구에 의해 도출된 것으로서, 본 발명은 세라믹 코팅 제올라이트, 세라믹 코팅 제올라이트를 포함하는 중금속 흡착용 부직포 및 이의 제조방법을 제공하고, 본 발명의 제조방법으로 제조된 세라믹이 코팅된 제올라이트가 수중 중금속을 제거할 수 있다는 것을 확인함으로써, 본 발명을 완성하였다.The present invention was derived from the above needs, and the present invention provides a ceramic-coated zeolite, a nonwoven fabric for adsorbing heavy metals containing the ceramic-coated zeolite, and a manufacturing method thereof, and the ceramic manufactured by the manufacturing method of the present invention is coated. The present invention was completed by confirming that zeolite can remove heavy metals in water.
상기 목적을 달성하기 위하여, 본 발명은 (1) 제올라이트 100 중량부에 대하여, 분말형 세라믹 4~6 중량부 및 에폭시 바인더 2~4 중량부를 첨가하고 혼합하는 단계;In order to achieve the above object, the present invention (1) based on 100 parts by weight of zeolite, adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder and mixing;
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및 (2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) 상기 단계 (2) 이후에, 온도 조절기를 이용하여 온도를 20~25℃까지 낮춰 공극 구조의 세라믹을 제올라이트 표면에 고정시키는 단계;를 포함하는 세라믹이 코팅된 중금속 흡착용 제올라이트의 제조방법을 제공한다.(3) after step (2), lowering the temperature to 20-25 ° C using a temperature controller to fix the pore-structured ceramic to the surface of the zeolite; provides
또한, 본 발명은 상기 중금속 흡착용 제올라이트의 제조방법으로 제조된 세라믹이 코팅된 중금속 흡착용 제올라이트를 제공한다.In addition, the present invention provides a ceramic-coated zeolite for heavy metal adsorption prepared by the method for preparing the zeolite for adsorption of heavy metals.
또한, 본 발명은 (1) 제올라이트 100 중량부에 대하여, 분말형 세라믹 4~6 중량부 및 에폭시 바인더 2~4 중량부를 첨가하고 혼합하는 단계;In addition, the present invention (1) based on 100 parts by weight of zeolite, adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder and mixing;
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및 (2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) 상기 단계 (2) 직후에, 상기 세라믹이 코팅된 제올라이트를 제1의 부직포의 상단에 도포하고, 그 상부를 제2의 부직포로 덮은 후, 온도를 20~25℃으로 낮춰, 세라믹이 코팅된 제올라이트를 두겹으로 이루어진 부직포의 사이에 고정시키는 단계;를 포함하는 중금속 흡착용 부직포의 제조방법을 제공한다.(3) Immediately after the step (2), the ceramic-coated zeolite is applied to the top of the first nonwoven fabric, the top is covered with the second nonwoven fabric, and the temperature is lowered to 20 to 25° C., so that the ceramic It provides a method for producing a nonwoven fabric for adsorbing heavy metals, including fixing the coated zeolite between two layers of nonwoven fabric.
또한, 본 발명은 상기 중금속 흡착용 부직포의 제조방법으로 제조된 중금속 흡착용 부직포를 제공한다.In addition, the present invention provides a nonwoven fabric for adsorbing heavy metals manufactured by the method of manufacturing the nonwoven fabric for adsorbing heavy metals.
본 발명은 세라믹 코팅 제올라이트, 세라믹 코팅 제올라이트를 포함하는 중금속 흡착용 부직포 및 이의 제조방법에 관한 것으로, 본 발명의 제조방법으로 제조된 부직포는 토양 또는 폐수 중의 중금속 제거뿐만 아니라, 전기차 배터리 폐기시 배출되는 중금속을 흡착하는 효과가 우수하다.The present invention relates to a ceramic-coated zeolite, a nonwoven fabric for adsorbing heavy metals containing the ceramic-coated zeolite, and a method for manufacturing the same. The nonwoven fabric manufactured by the manufacturing method of the present invention not only removes heavy metals from soil or wastewater, The effect of adsorbing heavy metals is excellent.
도 1은 세라믹 코팅 전의 제올라이트(A) 및 세라믹 코팅 후의 제올라이트(B) 사진이다.
도 2는 세라믹이 코팅된 제올라이트가 도포 및 고정된 부직포(매트)를 나타낸 개략도(A), 측면사진(B) 및 세라믹이 코팅된 제올라이트가 도포 및 고정된 부직포(매트) 시제품의 사진(C)이다.
도 3은 세라믹 코팅된 제올라이트의 수중 중금속 제거율을 확인한 시험성적서이다.1 is a photograph of zeolite (A) before ceramic coating and zeolite (B) after ceramic coating.
2 is a schematic diagram (A) showing a non-woven fabric (mat) to which ceramic-coated zeolite is applied and fixed, (B) and a photo (C) of a prototype non-woven fabric (mat) to which ceramic-coated zeolite is applied and fixed am.
3 is a test report confirming the removal rate of heavy metals in water of ceramic-coated zeolite.
본 발명은 (1) 제올라이트 100 중량부에 대하여, 분말형 세라믹 4~6 중량부 및 에폭시 바인더 2~4 중량부를 첨가하고 혼합하는 단계;The present invention comprises (1) adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder to 100 parts by weight of zeolite and mixing;
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및 (2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) 상기 단계 (2) 이후에, 온도 조절기를 이용하여 온도를 20~25℃까지 낮춰 공극 구조의 세라믹을 제올라이트 표면에 고정시키는 단계;를 포함하는 세라믹이 코팅된 중금속 흡착용 제올라이트의 제조방법에 관한 것이다. (3) after step (2), lowering the temperature to 20-25 ° C using a temperature controller to fix the pore-structured ceramic to the surface of the zeolite; It is about.
상기 세라믹은 다공성을 가지고 있는 알루미나인 것이 바람직하지만 이에 한정하지 않는다. The ceramic is preferably alumina having porosity, but is not limited thereto.
상기 중금속은 토양 또는 폐광 침출수에 포함된 카드뮴, 구리, 납, 아연, 크롬 및 수은 중에서 선택된 하나 이상의 중금속이거나, 전기차 배터리 폐기시 배출되는 중금속일 수 있으며, 전해질 용액에 함유된 중금속일 수 있고, 상기 전해질 용액은 해수인 것이 바람직하지만 이에 한정하는 것은 아니다.The heavy metal may be one or more heavy metals selected from among cadmium, copper, lead, zinc, chromium, and mercury contained in soil or abandoned mine leachate, heavy metal discharged when an electric vehicle battery is disposed of, or heavy metal contained in an electrolyte solution. The electrolyte solution is preferably seawater, but is not limited thereto.
상기 제올라이트는 직경이 1~10mm인 구형인 것이 바람직하고, 더 바람직하게는 직경이 4~6mm이지만, 목적에 따라 얼마든지 직경을 조절하는 것이 가하다. The zeolite is preferably spherical with a diameter of 1 to 10 mm, more preferably 4 to 6 mm in diameter, but it is possible to adjust the diameter according to the purpose.
본 발명의 제조방법으로 제조되는 세라믹이 코팅된 중금속 흡착용 제올라이트는 분말형 세라믹과 에폭시 바인더 혼합물이 제올라이트에 1차 고정된 후, 2차 분무한 유기용제에 녹인 액상형의 세라믹을 도포함으로써, 표면을 이루는 세라믹은 공극이 다수 형성된 구조를 갖는 것이 특징으로, 다공성 표면에 중금속이 잘 흡착될 수 있다. In the ceramic-coated zeolite for heavy metal adsorption produced by the manufacturing method of the present invention, a mixture of powdered ceramic and epoxy binder is firstly fixed to the zeolite, and then a liquid-type ceramic dissolved in an organic solvent sprayed secondarily is applied to the surface. The feature of the ceramic to be formed is that it has a structure in which a large number of pores are formed, and heavy metals can be well adsorbed on the porous surface.
상기 세라믹 입자의 크기가 1~5mm인 것이 더 바람직하고 더욱더 바람직하게는 2~3mm의 입자 크기를 갖는 것이지만 이에 한정하는 것은 아니다. 상기 알루미나는 내부 결정의 크기 및 종류에 따라 이온교환이 가능한 양이온을 포함할 수 있다. It is more preferable that the size of the ceramic particles is 1 to 5 mm, and even more preferably, the particle size is 2 to 3 mm, but is not limited thereto. The alumina may include cations capable of ion exchange depending on the size and type of internal crystals.
제올라이트를 세라믹으로 코팅함으로써, 바닷물 등 고농도의 염을 포함하는 물에 대한 화학적 또는 물리적 강도를 유지할 수 있는 특징이 있다.By coating the zeolite with a ceramic, there is a feature that can maintain chemical or physical strength for water containing a high concentration of salt such as seawater.
상기 단계 (3)에서 온도를 10분 이내로 빠르게 낮추지 않으면, 세라믹이 코팅된 제올라이트의 형태가 잘 유지되지 않는 문제점이 발생할 수 있다. 따라서 일정한 형태를 유지하기 위하여, 2차 액상형 세라믹을 분무한 직후, 10분 이내로 빠르게 온도조절기를 이용하여 온도를 20~25℃까지 낮추는 것이 바람직하지만 이에 한정하지 않는다. If the temperature is not quickly lowered within 10 minutes in the step (3), a problem in that the shape of the ceramic-coated zeolite may not be well maintained may occur. Therefore, in order to maintain a constant shape, immediately after spraying the secondary liquid type ceramic, it is preferable to quickly lower the temperature to 20 to 25 ° C using a temperature controller within 10 minutes, but is not limited thereto.
상기 중금속은 토양 또는 폐광 침출수에 포함된 중금속이거나, 전기차 배터리 폐기시 배출되는 중금속인 것이 바람직하지만 이에 한정하지 않는다.The heavy metal is preferably, but not limited to, heavy metal contained in soil or abandoned mine leachate, or heavy metal discharged when an electric vehicle battery is disposed of.
또한 본 발명은 상기 중금속 흡착용 제올라이트의 제조방법으로 제조된 세라믹이 코팅된 중금속 흡착용 제올라이트에 관한 것이다..In addition, the present invention relates to a zeolite for heavy metal adsorption coated with a ceramic manufactured by the method for preparing the zeolite for adsorption of heavy metal.
또한, 본 발명은 (1) 제올라이트 100 중량부에 대하여, 분말형 세라믹 4~6 중량부 및 에폭시 바인더 2~4 중량부를 첨가하고 혼합하는 단계;In addition, the present invention (1) based on 100 parts by weight of zeolite, adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder and mixing;
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및 (2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) 상기 단계 (2) 직후에, 상기 세라믹이 코팅된 제올라이트를 제1의 부직포의 상단에 도포하고, 그 상부를 제2의 부직포로 덮은 후, 온도를 20~25℃으로 낮춰, 세라믹이 코팅된 제올라이트를 두겹으로 이루어진 부직포의 사이에 고정시키는 단계;를 포함하는 중금속 흡착용 부직포의 제조방법에 관한 것이다.(3) Immediately after the step (2), the ceramic-coated zeolite is applied to the top of the first nonwoven fabric, the top is covered with the second nonwoven fabric, and the temperature is lowered to 20 to 25° C., so that the ceramic It relates to a method for manufacturing a nonwoven fabric for adsorbing heavy metals, including fixing the coated zeolite between two layers of nonwoven fabric.
상기 단계 (3)에서, 세라믹이 코팅된 제올라이트의 도포는 필요에 따라, 도포량을 결정함으로써, 1개의 레이어부터 다수의 레이어를 형성하는 양으로 도포할 수 있다. In the step (3), the application of the ceramic-coated zeolite may be applied in an amount to form a plurality of layers from one layer by determining the application amount, if necessary.
또한, 본 발명은 상기 중금속 흡착용 부직포의 제조방법으로 제조된 중금속 흡착용 부직포에 관한 것이다.In addition, the present invention relates to a nonwoven fabric for adsorbing heavy metals prepared by the method for preparing the nonwoven fabric for adsorbing heavy metals.
본 발명에 따른 부직포를 포장하여 토양 중금속을 제거할 경우, 토양 표면에 덮어 삼투압 작용으로 중금속을 제거할 수 있고, 수중 중금속을 제거할 경우는 필터형태로 사용하는 것이 가능하며, 중금속 제거를 완료한 후에는 상하부 부직포로 포장된 세라믹 코팅 제올라이트를 걷어내거나, 들어냄으로써 유지 관리가 편리한 특징이 있다. When removing heavy metals from soil by wrapping the nonwoven fabric according to the present invention, heavy metals can be removed by osmotic action by covering the nonwoven fabric on the surface of the soil, and when removing heavy metals from water, it is possible to use it in the form of a filter, and heavy metal removal is completed. After, there is a feature that maintenance is convenient by skimming or lifting the ceramic coated zeolite packed in the upper and lower nonwoven fabrics.
이하, 실시예를 이용하여 본 발명을 더욱 상세하게 설명하고자 한다. 이들 실시예는 오로지 본 발명을 보다 구체적으로 설명하기 위한 것으로 본 발명의 범위가 이들에 의해 제한되지 않는다는 것은 당해 기술분야에서 통상의 지식을 가진 자에게 있어 자명한 것이다. Hereinafter, the present invention will be described in more detail using examples. These examples are only for explaining the present invention in more detail, and it is obvious to those skilled in the art that the scope of the present invention is not limited thereto.
실시예 1. 세라믹이 코팅된 중금속 흡착용 제올라이트의 제조Example 1. Preparation of ceramic-coated zeolite for adsorption of heavy metals
(1) 직경이 4~6mm의 제올라이트 100 중량부에 대하여, 분말형 세라믹 5 중량부 및 에폭시 바인더 3 중량부를 첨가하고 혼합하였다. (1) Based on 100 parts by weight of zeolite having a diameter of 4 to 6 mm, 5 parts by weight of powdered ceramic and 3 parts by weight of an epoxy binder were added and mixed.
(2) 상기 단계 (1) 이후에, 60℃의 온도 조건에서 액상형 세라믹을 분무하였다.(2) After step (1), the liquid ceramic was sprayed at a temperature of 60°C.
(3) 상기 단계 (2) 이후에, 온도를 상온(20~25℃)으로 조절하여 제올라이트 표면에 공극 구조의 세라믹을 고정시켜, 세라믹이 코팅된 중금속 흡착용 제올라이트를 제조하였다(도 1).(3) After step (2), the temperature was adjusted to room temperature (20-25 ° C.) to fix the pore-structured ceramic on the surface of the zeolite to prepare a ceramic-coated zeolite for heavy metal adsorption (FIG. 1).
실시예 2. 중금속 흡착용 부직포의 제조Example 2. Preparation of nonwoven fabric for adsorption of heavy metals
(1) 제올라이트 100 중량부에 대하여, 분말형 세라믹 5 중량부 및 에폭시 바인더 3 중량부를 첨가하고 혼합하였다.(1) Based on 100 parts by weight of zeolite, 5 parts by weight of powdered ceramic and 3 parts by weight of an epoxy binder were added and mixed.
(2) 상기 단계 (1) 이후에, 60℃의 온도 조건에서 액상형 세라믹을 분무하였다.(2) After step (1), the liquid ceramic was sprayed at a temperature of 60°C.
(3) 상기 단계 (2) 직후에, 상기 세라믹이 코팅된 제올라이트를 제1의 부직포의 상단에 도포하고, 그 상부를 제2의 부직포로 덮은 후, 온도를 20~25℃으로 낮춰, 세라믹이 코팅된 제올라이트를 두겹으로 이루어진 부직포의 사이에 고정시켜 중금속 흡착용 부직포를 제조하였다(도 2).(3) Immediately after the step (2), the ceramic-coated zeolite is applied to the top of the first nonwoven fabric, the top is covered with the second nonwoven fabric, and the temperature is lowered to 20 to 25° C., so that the ceramic A nonwoven fabric for adsorbing heavy metals was prepared by fixing the coated zeolite between two layers of nonwoven fabric (FIG. 2).
실시예 3. 중금속 흡착용 부직포의 성능 분석Example 3. Performance analysis of nonwoven fabric for adsorption of heavy metals
상기 실시예 1에서 제조한 중금속 흡착용 부직포에 고정된 세라믹이 코팅된 제올라이트의 성능을 분석하였다. The performance of the ceramic-coated zeolite fixed to the nonwoven fabric for heavy metal adsorption prepared in Example 1 was analyzed.
정수기의 기준 규격 및 검사기관 지정고시(환경부고시 제2021-157호)에 따른 시험방법으로 세라믹 코팅 제올라이트의 중금속 제거율을 확인하였다. The heavy metal removal rate of the ceramic-coated zeolite was confirmed by a test method according to the standard specifications of water purifiers and the designation notice of inspection institutions (Ministry of Environment Notice No. 2021-157).
그 결과, 도 3에 개시한바 토양 침출수 속에 포함된 중금속인 카드뮴, 구리, 납, 아연, 크롬 및 수은을 제거할 수 있다는 것을 확인하였다.As a result, as shown in FIG. 3, it was confirmed that heavy metals such as cadmium, copper, lead, zinc, chromium, and mercury contained in soil leachate could be removed.
Claims (9)
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및
(3) 상기 단계 (2) 이후에, 온도 조절기를 이용하여 온도를 20~25℃까지 낮춰 공극 구조의 세라믹을 제올라이트 표면에 고정시키는 단계;를 포함하는 세라믹이 코팅된 중금속 흡착용 제올라이트의 제조방법.(1) adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder to 100 parts by weight of zeolite and mixing;
(2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) after step (2), lowering the temperature to 20-25 ° C using a temperature controller to fix the pore-structured ceramic to the surface of the zeolite; .
(2) 상기 단계 (1) 이후에, 50~70℃의 온도 조건에서 액상형 세라믹을 분무하는 단계; 및
(3) 상기 단계 (2) 직후에, 상기 세라믹이 코팅된 제올라이트를 제1의 부직포의 상단에 도포하고, 그 상부를 제2의 부직포로 덮은 후, 온도를 20~25℃으로 낮춰, 세라믹이 코팅된 제올라이트를 두겹으로 이루어진 부직포의 사이에 고정시키는 단계;를 포함하는 중금속 흡착용 부직포의 제조방법.(1) adding 4 to 6 parts by weight of powdered ceramic and 2 to 4 parts by weight of an epoxy binder to 100 parts by weight of zeolite and mixing;
(2) spraying liquid ceramics at a temperature of 50 to 70° C. after step (1); and
(3) Immediately after the step (2), the ceramic-coated zeolite is applied to the top of the first nonwoven fabric, the top is covered with the second nonwoven fabric, and the temperature is lowered to 20 to 25° C., so that the ceramic A method for producing a nonwoven fabric for adsorbing heavy metals comprising: fixing the coated zeolite between two layers of nonwoven fabric.
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