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KR102755861B1 - Absorbent for removing odor and manhole equipped with the same - Google Patents

Absorbent for removing odor and manhole equipped with the same Download PDF

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KR102755861B1
KR102755861B1 KR1020220059000A KR20220059000A KR102755861B1 KR 102755861 B1 KR102755861 B1 KR 102755861B1 KR 1020220059000 A KR1020220059000 A KR 1020220059000A KR 20220059000 A KR20220059000 A KR 20220059000A KR 102755861 B1 KR102755861 B1 KR 102755861B1
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manhole
adsorbent
red mud
tray
removing odor
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KR20230159076A (en
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서정권
홍연수
정현교
이현재
임봉빈
이상기
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한국화학연구원
주식회사 엔바이온
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/01Deodorant compositions
    • A61L9/014Deodorant compositions containing sorbent material, e.g. activated carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002Solid 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 physical properties
    • B01J20/28004Sorbent size or size distribution, e.g. particle size
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid 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
    • B01J20/28016Particle form
    • B01J20/28019Spherical, ellipsoidal or cylindrical
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0405Gullies for use in roads or pavements with an odour seal
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Abstract

본 발명은 악취 제거용 흡착제 및 이 흡착제가 구비된 악취 제거용 맨홀에 관한 것으로서, 보다 상세하게는 레드머드 및 알파반수석고를 소정의 비율로 포함함으로써 하수 유래 악취 제거 효과가 뛰어날 뿐만 아니라 내수성이 우수하여 맨홀에 장착되었을 때 장기간 사용할 수 있는, 악취 제거용 흡착제 및 이 흡착제가 구비된 악취 제거용 맨홀에 관한 것이다.The present invention relates to an adsorbent for removing odors and an odor-removing manhole equipped with the adsorbent, and more specifically, to an adsorbent for removing odors and an odor-removing manhole equipped with the adsorbent, which comprises red mud and alpha-half-hydrate gypsum in a predetermined ratio, thereby not only having an excellent effect in removing odors from sewage, but also having excellent waterproofing properties, and thus being able to be used for a long period of time when installed in a manhole.

Description

악취 제거용 흡착제 및 이 흡착제가 구비된 맨홀{ABSORBENT FOR REMOVING ODOR AND MANHOLE EQUIPPED WITH THE SAME} {ABSORBENT FOR REMOVING ODOR AND MANHOLE EQUIPPED WITH THE SAME}

본 발명은 맨홀에 장착되어 하수 유래 악취를 제거하는 흡착제에 관한 것이다.The present invention relates to an adsorbent installed in a manhole to remove foul odors from sewage.

악취는 황화수소, 메르캅탄류, 아민류, 기타 자극성 있는 기체상 물질이 사람의 후각을 자극하여 불쾌감과 혐오감을 주는 냄새를 말한다.Bad smell refers to the unpleasant and repulsive smell caused by hydrogen sulfide, mercaptans, amines, and other irritating gaseous substances that stimulate the human sense of smell.

주요 악취 발생원인 생활하수 및 산업폐수 내의 악취물질은 대개 분자량 30∼150g의 저분자 화합물이거나 비교적 휘발성이 있는 물질로서 대부분 유황계 및 질소 계 유기물이 혐기성 분해되면서 발생된다. 이러한 오폐수 내의 유기물이 분해되면서 생성되는 기체로는 황화수소, 암모니아, 이산화탄소 및 메탄가스 등이 있으나 주요 악취물질은 황화수소와 암모니아이며, 이 외에 스카톨, 메르캅탄류, 질소함유 유기물 등도 악취의 원인이 되고 있다. 이중 계란 썩는 냄새를 지닌 황화수소는 독성이 강하고 철, 아연, 구리, 납, 카드뮴 등을 강하게 부식시키는 특징이 있다.The main sources of odor in domestic sewage and industrial wastewater are usually low-molecular compounds with a molecular weight of 30–150 g or relatively volatile substances, and are mostly generated through the anaerobic decomposition of sulfur- and nitrogen-based organic matter. The gases generated through the decomposition of organic matter in wastewater include hydrogen sulfide, ammonia, carbon dioxide, and methane gas, but the main odorous substances are hydrogen sulfide and ammonia, and in addition, skatole, mercaptans, and nitrogen-containing organic matter are also causes of odor. Among these, hydrogen sulfide, which has the smell of rotten eggs, is highly toxic and has the characteristic of strongly corroding iron, zinc, copper, lead, and cadmium.

국내 기존 도심지에는 하수관거를 매설하면서 오수와 오수를 동시에 배제시키는 합류식 하수관거 시스템을 주로 적용해왔는데, 분뇨정화조와 오수처리시설에서 악취의 주원인인 황화수소가 생성되어 공공하수도로 배출되고, 이렇게 배출된 황화수소는 맨홀 및 빗물받이 등을 통하여 악취를 발생시킨다.In existing urban areas in Korea, combined sewer systems that simultaneously remove sewage and wastewater have been mainly applied while installing sewer pipes. However, hydrogen sulfide, the main cause of foul odor, is generated in sewage treatment tanks and sewage treatment facilities and discharged into public sewers. This discharged hydrogen sulfide then generates foul odor through manholes and rainwater gutters.

종래 악취를 제거하기 위한 기술로는 악취의 발생을 미연에 방지하는 방법, 각종 오폐수 등에 함유되어 있는 악취물질을 액상에서 제거하는 방법 그리고 각종 오폐수 등에서 발산된 취기를 포집하여 처리하는 방법 등이 적용되어 왔다. 악취의 발생을 사전에 방지하는 방법으로 오폐수 등을 호기성 상태로 유지하여 환원반응에 의한 악취물질의 생성을 방지하거나, 일단 환원된 악취물질을 무기형태로 산화하는 기술이 있다. 또 다른 전통적인 방법으로는 악취물질과 반응하는 약품 예를 들면, 염소, 오존, 과산화수소, 과망산칼륨 등을 첨가하여 화학반응에 의한 산화처리기술이 응용되어 왔다. 그러나 산화처리방법의 경우 악취의 원인물질이 불완전하게 산화되는 경우가 많기 때문에 강력한 산화제를 투입해야 하며, 이에 따라 처리비용이 증가하고 2차 오염이 발생되는 문제가 있다. 액상에서 악취물질을 제거하는 기술로 활성탄 흡착법, 포기조에 의한 미생물 처리법, 포기여과지를 이용한 처리 등이 있으나, 처리를 위한 장치, 설비비 대비 효율이 낮은 것이 문제로 지적되고 있다.Conventional techniques for removing odors include methods for preventing the occurrence of odors in advance, methods for removing odorous substances contained in various wastewaters, etc. in the liquid phase, and methods for capturing and treating odors emitted from various wastewaters, etc. As a method for preventing the occurrence of odors in advance, there is a technique for maintaining wastewaters, etc. in an aerobic state to prevent the generation of odorous substances by reduction reactions, or for oxidizing odorous substances that have been reduced into inorganic forms. Another traditional method is the application of oxidation treatment technology through chemical reactions by adding chemicals that react with odorous substances, such as chlorine, ozone, hydrogen peroxide, and potassium permanganate. However, in the case of oxidation treatment methods, since the substances causing odors are often incompletely oxidized, a strong oxidizing agent must be added, which increases treatment costs and causes secondary pollution. There are techniques for removing odorous substances in the liquid phase, such as activated carbon adsorption, microbial treatment using an aeration tank, and treatment using an aeration filter, but it is pointed out that the efficiency is low compared to the treatment equipment and facility costs.

한편, 오폐수 내의 악취물질을 탈취 등의 방법으로서 대기 중으로 방출시킨 후 기체상에서 처리하는 방법, 특히 황화수소계 및 암모니아계 물질을 처리하는 기술이 연구 개발되고 있다. 기체상의 악취물질 제거 기술은 크게 물리·화학적 처리와 생물학적 처리로 나눌 수 있는데, 대표적인 물리·화학적 처리기술로는 활성 탄 흡착법, 약액 세정법, 연소법 등이 있으며, 대표적인 생물탈취로는 토양탈취, 포기조 탈취 및 각종 바이오 필터 등을 들 수 있다.Meanwhile, a method of releasing odorous substances in wastewater into the atmosphere as a method of deodorization and then treating them in the gas phase, especially a technology for treating hydrogen sulfide and ammonia-based substances, is being researched and developed. Gaseous odorous substance removal technologies can be largely divided into physical and chemical treatments and biological treatments. Representative physical and chemical treatment technologies include activated carbon adsorption, chemical solution washing, and combustion, while representative biological deodorization technologies include soil deodorization, aeration tank deodorization, and various biofilters.

한국등록특허 제1258092호Korean Patent No. 1258092

본 발명은 악취 제거능 및 내수성이 우수한 흡착제를 제공하는 것을 목적으로 한다.The purpose of the present invention is to provide an adsorbent having excellent odor removal ability and water resistance.

본 발명은 위 흡착제가 장착된 맨홀을 제공하는 것을 또 다른 목적으로 한다.Another object of the present invention is to provide a manhole equipped with the above adsorbent.

1. 레드머드 100 중량부 및 알파반수석고 20 내지 80 중량부를 포함하는 악취 제거용 흡착제 조성물.1. An adsorbent composition for removing odor, comprising 100 parts by weight of red mud and 20 to 80 parts by weight of alpha-half-hydrated gypsum.

2. 위 1에 있어서, 상기 레드머드는 25 내지 45 중량%의 산화철을 포함하는 것인, 악취 제거용 흡착제 조성물.2. An adsorbent composition for removing odor, wherein in the above 1, the red mud contains 25 to 45 wt% of iron oxide.

3. 위 1에 있어서, 상기 레드머드는 40 내지 50 중량%의 물을 포함하는 것인, 악취 제거용 흡착제 조성물.3. An adsorbent composition for removing odor, wherein in the above 1, the red mud contains 40 to 50 wt% of water.

4. 위 1에 있어서, 상기 레드머드는 5 내지 25mm의 입경을 갖는 분말인, 악취 제거용 흡착제 조성물.4. An adsorbent composition for removing odor, wherein in the above 1, the red mud is a powder having a particle size of 5 to 25 mm.

5. 위 1에 있어서, 상기 레드머드는 Fe2O3 20 내지 45중량%, Al2O3 10 내지 22중량%, SiO2 5 내지 30중량%, Na2O 2 내지 15중량%, TiO2 4 내지 20중량%, CaO 0 내지 14중량%를 포함하는 것인 악취 제거용 흡착제 조성물.5. An adsorbent composition for removing odor, wherein in the above 1, the red mud contains 20 to 45 wt% of Fe 2 O 3 , 10 to 22 wt% of Al 2 O 3 , 5 to 30 wt% of SiO 2 , 15 to 15 wt% of Na 2 O 2 , 4 to 20 wt% of TiO 2 , and 0 to 14 wt% of CaO.

6. 맨홀 내부에 거치되는 트레이가 구비되어 있고, 상기 트레이에는 레드머드 100 중량부 및 알파반수석고 20 내지 80 중량부를 포함하는 펠렛 형태의 흡착제가 내장되어 있는 악취 제거용 맨홀.6. A manhole for removing odor, wherein a tray is provided inside the manhole, and the tray contains an adsorbent in the form of a pellet containing 100 parts by weight of red mud and 20 to 80 parts by weight of alpha-half-hydrated gypsum.

7. 위 6에 있어서, 상기 트레이는 맨홀 몸체에 걸쳐지는 트레이 고정부에 의해 상기 맨홀 내부에 거치되는 것인, 악취 제거용 맨홀.7. A manhole for removing odor, wherein in the above 6, the tray is mounted inside the manhole by a tray fixing member that spans the manhole body.

8. 위 6에 있어서, 상기 트레이는 상기 트레이 고정부의 하단 내주면을 따라 형성된 단턱에 놓여지는 몸체 및 상기 몸체를 덮는 커버를 포함하는, 악취 제거용 맨홀.8. A manhole for removing odor, wherein in the above 6, the tray includes a body placed on a step formed along the lower inner surface of the tray fixing part and a cover covering the body.

9. 위 8에 있어서, 상기 몸체 및 상기 커버에는 다수의 통공을 포함하는, 악취 제거용 맨홀.9. A manhole for removing odor, wherein the body and the cover of 8 above include a plurality of holes.

10. 위 7에 있어서, 상기 트레이 고정부는 상단 외주면을 따라 맨홀 내부에 거치되기 위한 날개를 포함하는, 악취 제거용 맨홀.10. A manhole for removing odor, wherein the tray fixing member in the above 7 includes a wing for being installed inside the manhole along the upper outer surface.

11. 위 6에 있어서, 상기 트레이가 복수개 적층되어 있는, 악취 제거용 맨홀.11. A manhole for removing odors, wherein a plurality of trays are stacked in the above 6.

본 발명의 흡착제는 악취 제거능이 우수하다.The adsorbent of the present invention has excellent odor removal ability.

본 발명의 흡착제는 내수성이 우수하다.The adsorbent of the present invention has excellent water resistance.

본 발명의 흡착제는 성형성이 우수하다.The adsorbent of the present invention has excellent formability.

본 발명의 흡착제는 친환경적이다.The adsorbent of the present invention is environmentally friendly.

본 발명의 흡착제 제조방법은 시간 및 비용 측면에서 경제적이다.The method for producing the adsorbent of the present invention is economical in terms of time and cost.

본 발명의 흡착제가 장착된 맨홀은 하수 악취 제거능이 뛰어나고 습한 환경에서 내구성이 우수하며 설치 및 관리가 용이하다.A manhole equipped with an adsorbent of the present invention has excellent sewage odor removal ability, excellent durability in a humid environment, and is easy to install and maintain.

본 발명의 맨홀은 트레이를 2층 이상 적층할 수 있어 악취 제거 효율을 높일 수 있다.The manhole of the present invention can stack trays in two or more layers, thereby increasing the efficiency of removing odor.

본 발명의 흡착제는 내수성이 우수하여 고온 다습한 환경(예컨대 맨홀 등)에 설치될 수 있다. The adsorbent of the present invention has excellent water resistance and can be installed in a high temperature and humid environment (e.g., manhole, etc.).

본 발명의 흡착제는 맨홀 내부에 장착될 때 막힘 현상을 유발하지 않고 오랫동안 사용할 수 있으며 흡착제 유출에 의한 환경 문제를 일으키지 않는다.The adsorbent of the present invention can be used for a long time without causing clogging when installed inside a manhole, and does not cause environmental problems due to adsorbent leakage.

도 1은 본 발명의 흡착제 조성물이 펠렛 형상으로 제조된 일 실시예 이다.
도 2는 본 발명의 실시예 1을 파쇄한 후 체거름 한 사진이다.
도 3은 본 발명의 비교예 1을 파쇄한 후 체거름 한 사진이다.
도 4는 실시예 1의 흡착제를 물에 넣고 24시간을 유지한 후의 형상 사진이다.
도 5는 비교예 3의 흡착제를 물에 넣고 24시간을 유지한 후의 형상 사진이다.
도 6은 본 발명의 맨홀의 일 실시예이다.
도 7은 본 발명의 트레이가 복수 개 적층된 일 실시예이다.
Figure 1 is an example in which the adsorbent composition of the present invention is manufactured in a pellet shape.
Figure 2 is a photograph of Example 1 of the present invention after crushing and sieving.
Figure 3 is a photograph of Comparative Example 1 of the present invention after crushing and sieving.
Figure 4 is a photograph of the shape of the adsorbent of Example 1 after placing it in water and maintaining it for 24 hours.
Figure 5 is a photograph of the shape of the adsorbent of Comparative Example 3 after placing it in water and keeping it for 24 hours.
Figure 6 is an embodiment of a manhole of the present invention.
Figure 7 is an example of a tray of the present invention in which a plurality of trays are stacked.

본 발명은 레드머드 및 알파반수석고를 소정의 비율로 포함함으로써 하수 유래 악취 제거 효과가 뛰어날 뿐만 아니라 내수성이 우수하여 맨홀에 장착되었을 때 장기간 사용할 수 있는 악취 제거용 흡착제 및 이 흡착제가 구비된 악취 제거용 맨홀에 관한 것이다.The present invention relates to an adsorbent for removing odors, which is excellent in the effect of removing odors from sewage by containing red mud and alpha-half-hydrated gypsum in a predetermined ratio, and also has excellent waterproofing properties so that it can be used for a long period of time when installed in a manhole, and to an odor removing manhole equipped with the adsorbent.

본 발명의 흡착제 조성물은 레드머드 100 중량부 및 알파반수석고 20 내지 80 중량부를 포함한다. 알파반수석고는 레드머드 100 중량부에 대해 20 내지 80 중량부, 30 내지 70중량부, 40 내지 60중량부를 포함할 수 있다.The adsorbent composition of the present invention comprises 100 parts by weight of red mud and 20 to 80 parts by weight of alpha-hemihydrate gypsum. The alpha-hemihydrate gypsum may be comprised in an amount of 20 to 80 parts by weight, 30 to 70 parts by weight, or 40 to 60 parts by weight, relative to 100 parts by weight of red mud.

레드머드는 보크사이트 원광석으로부터 수산화알루미늄(Al(OH)3) 및 산화알루미늄(Al2O3) 성분을 추출하는 공정에서 얻어지는 부산물이다.Red mud is a by-product obtained from the process of extracting aluminum hydroxide (Al(OH) 3 ) and aluminum oxide ( Al2O3 ) from bauxite ore .

레드머드는 산화철, 산화티탄, 산화 규소 및 불용 알루미나 등을 포함할 수 있다. 레드머드는 보크사이트의 원산지에 따라 산화물의 종류 및 함량이 차이가 있을 수 있다.Red mud may contain iron oxide, titanium oxide, silicon oxide, and insoluble alumina. Red mud may have different types and contents of oxides depending on the origin of the bauxite.

예컨대 레드머드는 Fe2O3 20 내지 45중량%, Al2O3 10 내지 22중량%, SiO2 5 내지 30중량%, Na2O 2 내지 15중량%, TiO2 4 내지 20중량%, CaO 0 내지 14중량%를 포함하는 것이다.For example, red mud contains 20 to 45 wt% of Fe 2 O 3 , 10 to 22 wt% of Al 2 O 3 , 5 to 30 wt% of SiO 2 , 15 to 15 wt% of Na 2 O 2 , 4 to 20 wt% of TiO 2 , and 0 to 14 wt% of CaO.

레드머드의 성분 중 특히 산화철은 황화수소 흡착 성능이 우수하다.Among the components of red mud, iron oxide in particular has excellent hydrogen sulfide absorption performance.

레드머드는 40 내지 50 중량%의 물을 포함할 수 있다. 예컨대 레드머드는 42 내지 48 중량%의 물을 포함할 수 있다.The red mud can contain 40 to 50 wt% water. For example, the red mud can contain 42 to 48 wt% water.

레드머드의 성상은 특별한 모양으로 제한되지 않고 예컨대 5 내지 25mm의 입경을 갖는 분말이다. 분말의 입경은 예컨대 10 내지 20mm, 10 내지 18mm 또는 12 내지 18mm이다.The shape of red mud is not limited to a specific shape and is a powder having a particle size of, for example, 5 to 25 mm. The particle size of the powder is, for example, 10 to 20 mm, 10 to 18 mm or 12 to 18 mm.

본 발명의 흡착제는 알파반수석고를 바인더로 포함한다.The adsorbent of the present invention contains alpha-hemihydrate gypsum as a binder.

알파반수석고(CaSO4ㆍ1/2H2O)는 이수석고(CaSO4ㆍ2H2O)를 소성하여 얻어지는 석고의 일종이다.Alpha hemihydrate gypsum (CaSO 4 ㆍ 1/2H 2 O) is a type of gypsum obtained by calcining dihydrate gypsum (CaSO 4 ㆍ 2H 2 O).

알파형 반수석고는 연한미색 또는 백색을 띄고 있다. 적은 양의 물로 경화되기 때문에 수축에 의한 균열이 억제된다.Alpha-type hemihydrate gypsum is light beige or white in color. Since it hardens with a small amount of water, cracking due to shrinkage is suppressed.

알파반수석고는 흡착제의 성형성 및 내수성 증진에 기여한다.Alpha-banhydrite gypsum contributes to improving the formability and water resistance of the adsorbent.

본 발명의 흡착제 조성물은 다른 바인더 및 기타 첨가제를 선택적으로 포함할 수 있다.The adsorbent composition of the present invention may optionally contain other binders and other additives.

다른 바인더는 예컨대 점토, 무기바인더, 유기바인더 등일 수 있다.Other binders may be, for example, clay, inorganic binders, organic binders, etc.

점토는 벤토나이트, 카로나이트, 몬모릴로나이트, 일라이트 등일 수 있다.Clays can be bentonite, chalcopyrite, montmorillonite, illite, etc.

무기바인더는 실리카, 시멘트 등일 수 있다.The inorganic binder may be silica, cement, etc.

유기바인더는 스테아르산, 식물유, 폴리글리콜, 천연 및 합성 고분자 등일 수 있다.Organic binders can be stearic acid, vegetable oils, polyglycols, natural and synthetic polymers, etc.

기타 첨가제는 악취 흡착 효율 향상을 위한 것으로 금속 화합물 및 기타 화합물 등이 포함된다.Other additives include metal compounds and other compounds to improve odor absorption efficiency.

금속 화합물은 금속산화물, 구리화합물, 금속화합물 포함 광물 등일 수 있다.The metal compound may be a metal oxide, a copper compound, a mineral containing a metal compound, etc.

기타 화합물은 플루오로 인산나트륨 등일 수 있다.Other compounds may include sodium fluorophosphate.

본 발명의 흡착제는 레드머드 및 알파반수석고를 혼합하여 펠렛 성형하는 단계를 거친 뒤 건조하여 제조될 수 있다. 건조는 자연 건조, 열풍 건조 등 다양한 방법으로 수행될 수 있다. 건조 후 필요에 따라 소성 단계를 포함할 수 있다.The adsorbent of the present invention can be manufactured by mixing red mud and alpha-half-hydrate gypsum and forming pellets, followed by drying. Drying can be performed by various methods such as natural drying and hot air drying. After drying, a calcination step may be included as needed.

본 발명의 악취 제거용 맨홀은 맨홀 내부에 거치되는 트레이가 구비되어 있고, 트레이에는 레드머드 100 중량부 및 알파반수석고 20 내지 80 중량부를 포함하는 펠렛 형태의 흡착제가 내장되어 있는 악취 제거용 맨홀이다.The manhole for removing odor of the present invention is a manhole for removing odor, which is equipped with a tray placed inside the manhole, and in which a pellet-shaped adsorbent containing 100 parts by weight of red mud and 20 to 80 parts by weight of alpha-semi-hydrated gypsum is built in.

본 발명의 악취 제거용 맨홀의 구조는 예컨대 도 1과 같다.The structure of the manhole for removing odor of the present invention is as shown in Fig. 1, for example.

맨홀(100)은 맨홀 커버(10), 트레이(20), 트레이 고정부(30) 및 맨홀 몸체(40)로 포함할 수 있다.A manhole (100) may include a manhole cover (10), a tray (20), a tray fixing part (30), and a manhole body (40).

트레이(20)는 트레이 몸체(21)와 트레이 커버(22)를 포함할 수 있다.The tray (20) may include a tray body (21) and a tray cover (22).

트레이(20)는 다양한 소재로 제조될 수 있고, 예컨대 플라스틱, 스테인레스 등이 바람직하다.The tray (20) can be manufactured from various materials, and plastic, stainless steel, etc. are preferred.

트레이 몸체(21)와 트레이 커버(22)는 다수의 통공(23)을 포함할 수 있다. 통공(23)은 맨홀의 기능을 저해하지 않고, 악취 흡착 기능의 발휘를 위한 구조이다.The tray body (21) and the tray cover (22) may include a plurality of perforations (23). The perforations (23) are structured to exert the odor absorption function without impeding the function of the manhole.

트레이 고정부(30)는 원통형 몸통의 내주면 하부에 단턱(31)과 외주면 상부에 날개(32)를 구비한다.The tray fixing member (30) has a step (31) on the lower inner surface of the cylindrical body and a wing (32) on the upper outer surface.

단턱(31)은 트레이(20)가 걸쳐져 고정되도록 하기 위한 구조이다.The step (31) is a structure for fixing the tray (20) by hanging it over it.

날개(32)는 맨홀 몸체에 고정되기 위한 구조이다.The wing (32) is a structure for being fixed to the manhole body.

날개(32)를 통하여 맨홀 몸체에 추가적인 설비 없이 트레이 고정부(30)가 설치될 수 있다.A tray fixing member (30) can be installed on the manhole body without additional equipment through the wing (32).

맨홀 내부에 필요에 따라 2개 이상의 트레이를 위로 쌓아 설치할 수 있고 이 경우 예컨대 도 7과 같은 디자인을 가질 수 있다.Two or more trays can be installed stacked on top of each other inside the manhole as needed, and in this case, a design such as that shown in Fig. 7 can be achieved.

이하, 본 발명을 구체적으로 설명하기 위해 실시예를 들어 상세하게 설명하기로 한다. Hereinafter, the present invention will be described in detail by way of examples in order to specifically explain the present invention.

실시예Example

실시예 1Example 1

다음 표 1의 조성을 갖는 레드머드 100중량부(48% 함수, KC Corporation)와 알파반수석고 50중량부를 일반 분말용 혼합기를 사용하여 잘 섞은 후, 펠렛 성형기로 성형하고 대기 조건에서 자연 건조하여 도 1의 펠렛 모양의 흡착제를 제조하였다. 이후 별도의 추가적인 공정은 진행하지 않았다. 참고로, 하기 표 1의 기타 성분은 표에 화학식이 기재된 성분 이외에 레드머드에 함유된 다양한 미량 성분의 총칭이다.100 parts by weight of red mud (48% moisture, KC Corporation) having the composition shown in Table 1 below and 50 parts by weight of alpha hemihydrate gypsum were mixed well using a general powder mixer, then formed into a pellet molding machine and naturally dried under atmospheric conditions to produce a pellet-shaped adsorbent as shown in Fig. 1. No additional processes were performed thereafter. For reference, the other components in Table 1 below are a general term for various trace components contained in red mud in addition to the components whose chemical formulas are listed in the table.

성분ingredient 함량비Content ratio Al2O3 Al 2 O 3 17.717.7 SiO2 SiO 2 15.115.1 Fe2O3 Fe 2 O 3 39.739.7 TiO2 TiO 2 7.07.0 Na2O Na2O 10.310.3 CaOCaO 3.33.3 기타 성분Other ingredients 6.96.9 total 100100

실시예 2Example 2

실시예 1의 알파반수석고의 함량을 레드머드 100중량부 대비 30중량부로 한 것을 제외하고 실시예 1과 동일하게 흡착제를 제조하였다.An adsorbent was prepared in the same manner as in Example 1, except that the content of alpha-half-hydrate gypsum was changed to 30 parts by weight per 100 parts by weight of red mud.

실시예 3Example 3

실시예 1의 알파반수석고의 함량을 레드머드 100중량부 대비 70중량부로 한 것을 제외하고 실시예 1과 동일하게 흡착제를 제조하였다.An adsorbent was prepared in the same manner as in Example 1, except that the content of alpha-half-hydrate gypsum was changed to 70 parts by weight per 100 parts by weight of red mud.

실험예 1. 흡착 성능 확인Experimental Example 1. Confirmation of Adsorption Performance

실시예 1의 흡착제를 도 2와 같이 파쇄한 후 일정한 입경(10 내지 18mm)으로 체거름(sieving)하였다. The adsorbent of Example 1 was crushed as shown in Fig. 2 and then sieved to a constant particle size (10 to 18 mm).

흡착실험용 반응기에 상기 체거름된 시료 8cc를 충진하고, H2S 표준가스(20 ppm)를 공간속도 42,000/h의 유량으로 흘렸다. 이때, 상대습도는 90%였다. 이후, 시간에 따른 흡착된 가스량을 H2S 검지관으로 확인하였다.The above-mentioned sieved sample (8 cc) was charged into the adsorption experiment reactor, and H2S standard gas (20 ppm) was flowed at a space velocity of 42,000/h. At this time, the relative humidity was 90%. Thereafter, the amount of gas adsorbed over time was confirmed using a H2S detector.

또한 시판품인 산화철 흡착제(비교예 1)와 활성탄 흡착제(비교예 2)도 실시예 1의 흡착제와 마찬가지로 테스트하였다. 흡착 성능 확인 결과는 다음 표 2와 같다.In addition, commercially available iron oxide adsorbent (Comparative Example 1) and activated carbon adsorbent (Comparative Example 2) were also tested in the same manner as the adsorbent of Example 1. The results of the adsorption performance verification are shown in Table 2 below.

시간(분)Time (minutes) Removal Efficiency(%)Removal Efficiency(%) 실시예 1Example 1 비교예 1Comparative Example 1 비교예 2Comparative Example 2 00 100100 100100 100100 55 99.8499.84 98.3898.38 90.1290.12 1010 98.2198.21 95.2795.27 86.7686.76 2020 96.4896.48 92.6292.62 79.4679.46 3030 95.7395.73 88.6788.67 72.5872.58 4040 93.4693.46 86.5486.54 63.4963.49 5050 92.3792.37 82.9482.94 52.4352.43 6060 91.5591.55 78.8778.87 43.2743.27

표 2와 같이 실시예 1이 상용 제품들에 비해 현저히 우수한 황화수소 제거능을 나타내었다.As shown in Table 2, Example 1 exhibited significantly superior hydrogen sulfide removal ability compared to commercial products.

실험예 2. 내수성 확인Experimental Example 2. Confirmation of water resistance

실시예 1에 따라 제조된 흡착제, 실시예 1의 알파반수석고 대신에 일반석고를 동량 넣은 흡착제(비교예 3) 및 실시예 1의 알파반수석고 대신에 벤토나이트를 동량 넣은 흡착제(비교예 4)를 각각 물을 넣고 24시간 유지시켜 내수성을 확인하였다. 나머지 비교예 3 및 4의 제조방법 및 조건은 실시예 1과 동일하다.The water resistance of each of the adsorbents manufactured according to Example 1, the adsorbent (Comparative Example 3) in which the same amount of general gypsum was added instead of the alpha-hemihydrate gypsum of Example 1, and the adsorbent (Comparative Example 4) in which the same amount of bentonite was added instead of the alpha-hemihydrate gypsum of Example 1 was tested by adding water and maintaining them for 24 hours. The manufacturing methods and conditions of the remaining Comparative Examples 3 and 4 are the same as those of Example 1.

그 결과 실시예 1의 흡착제는 도 4와 같이 형상을 유지하였으나 비교예 3 및 4의 흡착제는 도 5와 같이 물에 풀어지는 현상이 나타났다.As a result, the adsorbent of Example 1 maintained its shape as shown in Fig. 4, but the adsorbents of Comparative Examples 3 and 4 showed a phenomenon of dissolving in water as shown in Fig. 5.

실험예 3. 소성된 벤토나이트 흡착제와의 흡착 성능 비교Experimental Example 3. Comparison of Adsorption Performance with Calcined Bentonite Adsorbent

비교예 4의 흡착제에 내수성 부가를 위해 성형-건조 후 표 3의 온도로 소성하는 공정을 추가하여 비교예 5의 흡착제를 제조하였다.To add water resistance to the adsorbent of Comparative Example 4, a process of sintering at the temperature in Table 3 after molding and drying was added to manufacture the adsorbent of Comparative Example 5.

비교예 5를 대상으로 실험예 1과 같은 조건 및 방법으로 흡착 성능을 테스트하였다.For Comparative Example 5, the adsorption performance was tested under the same conditions and methods as Experimental Example 1.

시간(분)Time (minutes) Removal Efficiency(%)Removal Efficiency(%) 실시예 1Example 1 비교예 5Comparative Example 5 500℃500℃ 550℃550℃ 600℃600℃ 650℃650℃ 00 100100 100100 100100 100100 100100 55 99.8499.84 9797 9595 8989 6060 1010 98.2198.21 9595 8282 7070 4646 1515 97.597.5 9292 7171 5050 3131 2020 96.4896.48 8989 4949 3939 2525 2525 95.995.9 8686 3535 2929 2222 3030 95.7395.73 8282 2222 1919 1818 3535 94.694.6 7979 1111 1111 1212 4040 93.4693.46 7575 44 99 99

표 3과 같이 실시예 1은 소성 공정을 거치지 않아도 내수성이 우수하다. 벤토나이트를 바인더로 사용한 흡착제는 500℃ 미만으로 소성할 경우에는 내수성 개선 효과가 떨어지고 500℃ 이상으로 소성할 경우에는 온도가 올라갈수록 흡착 성능이 떨어짐을 알 수 있었다.As shown in Table 3, Example 1 has excellent water resistance even without a calcination process. It was found that the adsorbent using bentonite as a binder had a reduced effect on improving water resistance when calcined below 500°C, and when calcined above 500°C, the adsorption performance decreased as the temperature increased.

Claims (11)

맨홀 내부에 거치되는 트레이가 구비되어 있고,
상기 트레이는 맨홀 몸체에 걸쳐지는 트레이 고정부에 의해 상기 맨홀 내부에 거치되고,
상기 트레이는 상기 트레이 고정부의 하단 내주면을 따라 형성된 단턱에 놓여지는 몸체 및 상기 몸체를 덮는 커버를 포함하고,
상기 트레이 고정부는 상단 외주면을 따라 상기 맨홀 내부에 거치되기 위한 날개를 포함하며,
상기 몸체 및 상기 커버는 다수의 통공을 포함하고,
상기 트레이에는 레드머드 100 중량부 및 알파반수석고 20 내지 80 중량부를 포함하는 펠렛 형태의 흡착제가 내장되어 있는, 악취 제거용 맨홀.
Equipped with a tray that is placed inside the manhole,
The above tray is mounted inside the manhole by a tray fixing member that spans the manhole body,
The above tray includes a body placed on a step formed along the lower inner surface of the tray fixing portion and a cover covering the body,
The above tray fixing member includes a wing for being placed inside the manhole along the upper outer surface,
The above body and the above cover include a plurality of perforations,
A manhole for removing odor, wherein the tray contains an adsorbent in the form of pellets containing 100 parts by weight of red mud and 20 to 80 parts by weight of alpha-half-hydrated gypsum.
청구항 1에 있어서, 상기 레드머드는 25 내지 45 중량%의 산화철을 포함하는 것인, 악취 제거용 맨홀.
A manhole for removing odor according to claim 1, wherein the red mud contains 25 to 45 wt% of iron oxide.
청구항 1에 있어서, 상기 레드머드는 40 내지 50 중량%의 물을 포함하는 것인, 악취 제거용 맨홀.
A manhole for removing odor according to claim 1, wherein the red mud contains 40 to 50 wt% of water.
청구항 1에 있어서, 상기 레드머드는 5 내지 25mm의 입경을 갖는 분말인, 악취 제거용 맨홀.
A manhole for removing odor according to claim 1, wherein the red mud is a powder having a particle size of 5 to 25 mm.
청구항 1에 있어서, 상기 레드머드는 Fe2O3 20 내지 45중량%, Al2O3 10 내지 22중량%, SiO2 5 내지 30중량%, Na2O 2 내지 15중량%, TiO2 4 내지 20중량%, CaO 0 내지 14중량%를 포함하는 것인, 악취 제거용 맨홀.
A manhole for removing odor according to claim 1, wherein the red mud contains 20 to 45 wt% of Fe 2 O 3 , 10 to 22 wt% of Al 2 O 3 , 5 to 30 wt% of SiO 2 , 15 to 15 wt% of Na 2 O 2 , 4 to 20 wt% of TiO 2 , and 0 to 14 wt% of CaO.
삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 청구항 1에 있어서, 상기 트레이가 복수개 적층되어 있는, 악취 제거용 맨홀.
A manhole for removing odor according to claim 1, wherein a plurality of trays are stacked.
KR1020220059000A 2022-05-13 2022-05-13 Absorbent for removing odor and manhole equipped with the same Active KR102755861B1 (en)

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KR101143434B1 (en) * 2011-11-17 2012-05-22 (주)유성테크 Crack reducing composition of mortar and concrete compositions that contain them
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KR101143434B1 (en) * 2011-11-17 2012-05-22 (주)유성테크 Crack reducing composition of mortar and concrete compositions that contain them
KR101258092B1 (en) * 2012-11-23 2013-04-25 태성건설 주식회사 Deodorant agent

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