KR20210116110A - Heavy Metal Contaminated Soil Stabilizer comprising Cuttlefish bones - Google Patents
Heavy Metal Contaminated Soil Stabilizer comprising Cuttlefish bones Download PDFInfo
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Abstract
Description
중금속 오염 토양 안정화용 조성물 및 이를 이용한 중금속 오염 토양의 안정화 방법에 관한 것이다.It relates to a composition for stabilizing heavy metal-contaminated soil and a method for stabilizing heavy-metal-contaminated soil using the same.
최근 급속한 산업발전과 인간의 사회활동으로 인간의 건강·재산이나 환경에 피해를 주는 토양오염이 증가하고 있다. 토양오염은 토양오염의 원인이 되는 물질로 토양이 오염되는 것을 말하며, 토양오염물질은 '토양환경보전법 시행규칙 [별표1]'에 명시되어 있다. 토양환경은 인위적으로 증식이 불가능한 매우 한정된 용량을 가지고 있으며 공기보다 무거운 모든 환경오염물질의 최종 귀착지로서 한번 오염되면 원 상태로 복원하기가 매우 어려울 뿐만 아니라 복원을 위해 많은 시간과 비용을 감수해야 하는 등 값비싼 대가를 치러야만 한다.Recently, with rapid industrial development and human social activities, soil pollution, which damages human health, property, and the environment, is increasing. Soil contamination refers to soil contamination with substances that cause soil contamination, and soil pollutants are specified in the 'Enforcement Rules of the Soil Environment Conservation Act [Annex 1]'. The soil environment has a very limited capacity that cannot be artificially propagated, and as the final destination of all environmental pollutants heavier than air, once contaminated, it is very difficult to restore to its original state, and requires a lot of time and money for restoration. You have to pay a high price.
토양정화라 함은 생물학적, 물리·화학적 및 열적 처리 등의 방법으로 토양중의 오염물질을 감소·제거하거나 토양 중의 오염물질에 의한 위해를 완화하는 것을 말한다. 토양정화의 방법으로는 크게 원위치(in situ) 방식과 비원위치(ex situ) 방식으로 구분된다. 오염토양 정화기술로는 오염토를 교반시켜 호기성 조건에서 오염물질의 생물학적 분해를 유도하는 토양경작법(Land farming)과 열을 가해 오염물을 토양으로부터 분리하는 열탈착법(Thermal desorption), 기계적 마찰과 세정수를 이용한 토양세척법(Soil washing), 다공성 매질에서 공극수 또는 공극수 및 토양표면에 흡착되어 있는 이온성 물질을 전기적인 힘에 의해 이동시켜 제거하는 동전기법(Electrokinetic Separation), 식물을 이용하여 오염토양 및 지하수를 포함한 수질을 정화시키는 식물정화법(Phytoremediation), 그리고 오염물질을 고용체 안에 고정시켜 유동성을 감소시켜 용출을 방지하거나 무해화하여 독성을 제거하는 고형화/안정화법(Solidification/Stabilization) 등이 일반적으로 널리 알려져 있다.Soil purification refers to reducing or removing pollutants in the soil or mitigating harm caused by pollutants in the soil by methods such as biological, physical, chemical, and thermal treatment. The method of soil remediation is largely divided into an in situ method and an ex situ method. Contaminated soil purification technologies include agitation of contaminated soil to induce biological decomposition of pollutants under aerobic conditions, and thermal desorption, which separates pollutants from the soil by applying heat, and mechanical friction and cleaning. Soil washing using water, Electrokinetic Separation, which removes pore water or pore water and ionic substances adsorbed on the soil surface in a porous medium by electric force, using plants And Phytoremediation, which purifies water quality including groundwater, and Solidification/Stabilization, which fix pollutants in a solid solution to reduce fluidity to prevent elution or detoxify to remove toxicity. widely known.
우리나라의 오염토양 정화의 주 시행대상은 최초 비위생 매립지였으나, 1995년 토양환경보전법이 제정된 이후 전국의 공장과 대규모 산업단지, 폐기물 매립지, 폐광산 등을 대상으로 토양오염실태를 조사한 결과 TPH, BTEX, TCE 등 유기화합물과 As, Zn, Pb, Cu, Cd, Ni과 같은 중금속 그리고 침출수를 유발하는 유기물 등에 의한 토양오염이 심각한 것으로 보고되어 오염토양의 조사범위를 확대함에 따라 토양오염물질을 생산·운반·저장·취급·가공 또는 처리함으로써 토양을 오염시킬 우려가 있는 시설·장치·건물·구축물 및 장소 등으로 확대 시행되고 있다.In Korea, the main target for purifying contaminated soil was unsanitary landfills for the first time. However, after the Soil Environment Conservation Act was enacted in 1995, soil contamination conditions were investigated in factories, large-scale industrial complexes, waste landfills, and abandoned mines across the country. As a result, TPH, BTEX, It has been reported that soil contamination by organic compounds such as TCE, heavy metals such as As, Zn, Pb, Cu, Cd, and Ni, and organic matter causing leachate is serious. · It is being extended to facilities, devices, buildings, structures and places that may pollute the soil by storage, handling, processing or treatment.
이에 따른 국내의 정화사업으로는 2002년 한·미간 체결된 연합토지관리계획(LPP, Land Partnership Plan) 협정에 따라 2005년부터 2007년까지 약 3년에 걸쳐 반환된 18개의 미군기지에 대한 정화사업과 1970년 유류이송 목적으로 주한미군이 건설한 한국종단송유관TKP(Trans Korea Pipeline)의 폐쇄로 인한 TKP 폐쇄송유관로 환경오염정화사업, 그리고 폐광산 및 산업단지의 정화사업 등 국가가 주도하는 대형 정화사업과 민간차원에서 이뤄지는 소규모 주유소부지에 대한 정화사업 등이 있다. 또한 2009년 환경부의 'GAIA Project(Geo-Advanced Innovative Action Project)'를 통해 토양·지하수 오염방지기술개발사업을 통해 현장기술 개발을 통한 선진적인 토양·지하수 통합관리기반을 구축하고 토양·지하수 환경시장의 90% 이상을 국내기술로 대체하기 위한 기술개발 지원 사업 등이 있다.According to the Land Partnership Plan (LPP) agreement signed between Korea and the United States in 2002, the cleanup project for 18 US bases returned over 3 years from 2005 to 2007 and large-scale state-led purification projects such as the TKP closed pipeline environmental pollution remediation project due to the closure of the TKP (Trans Korea Pipeline), built by the USFK for the purpose of transporting oil in 1970, and the remediation of abandoned mines and industrial complexes. In addition, there are cleanup projects for small gas station sites carried out at the private level. In addition, through the 'GAIA Project (Geo-Advanced Innovative Action Project)' of the Ministry of Environment in 2009, through the soil/groundwater and pollution prevention technology development project, an advanced soil/groundwater integrated management foundation was established through the development of on-site technology, and the soil/groundwater environment market There is a technology development support project to replace more than 90% of domestic technology with domestic technology.
토양을 비롯한 지하수의 환경오염은 직접 인지가 어렵고 매우 천천히 진행되는 반면에, 피해 범위가 광범위하게 나타나는 경우가 많고 고비용의 정화비용과 정화 소요기간이 매우 오래 걸리는 특징을 갖는다. 또한 오염특징의 다양성 및 복합성으로 다양한 정화공법이 적용될 수 있으며 정형화된 정화 방식을 획일적으로 적용할 수 없다는 어려움이 존재하는 분야이다. 그렇기 때문에 지식과 경험이 풍부한 전문 인력이 필요한 분야이다. 우리나라의 환경오염은 이미 토양, 하천, 지하수, 해저까지 광범위하게 확산되어 있는 것으로 알려져 있어 이에 대한 정화사업 시행이 매우 시급한 상태이나 국내의 사정은 아직은 선진국에서 개발된 정화기술을 벤치마킹하여 시행착오를 겪으면서 조금씩 기술력 축적을 쌓아 나아가는 정도이다. 하지만 점차 사회적 관심이 고조되고 있고 최근 미군 반환부지 정화와 같은 대규모의 정화사업이 시행되고 있어 정화사업이 점점 더 활성화될 것으로 예상되고 있다.While environmental pollution of groundwater including soil is difficult to recognize directly and proceeds very slowly, the damage range is often extensive, and it has the characteristics of expensive purification costs and a very long purification period. Also, due to the diversity and complexity of pollution characteristics, various purification methods can be applied, and there are difficulties in applying standardized purification methods uniformly. Therefore, it is a field that requires professional personnel with abundant knowledge and experience. It is known that environmental pollution in Korea has already spread widely to the soil, rivers, groundwater, and the sea floor, so it is urgent to implement a purification project. It is about the extent of accumulating technology little by little. However, social interest is gradually increasing, and large-scale remediation projects such as remediation of US-backed land are being implemented recently, so the remediation project is expected to become more active.
중금속 오염 토양 안정화용 조성물 및 이를 이용한 중금속 오염 토양의 안정화 방법을 제공하는 것을 목적으로 한다.An object of the present invention is to provide a composition for stabilizing heavy metal contaminated soil and a method for stabilizing heavy metal contaminated soil using the same.
일 양태로서, 갑오징어뼈(Cuttlefish bones)를 포함하는 중금속 오염 토양의 안정화용 조성물을 제공한다.In one aspect, there is provided a composition for stabilizing heavy metal-contaminated soil containing cuttlefish bones.
상기 갑오징어뼈는 갑오징어의 뼈 자체를 그대로 사용하여도 중금속 오염 토양의 안정화 효과를 발휘할 수 있으나, 오염 토양과의 접촉면 증대 등의 측면에서 바람직하게는 분쇄된 분말의 형태일 수 있다. 이러한 경우, 상기 갑오징어뼈는 0.5 내지 3, 0.8 내지 3, 1 내지 3, 1.5 내지 3, 1.5 내지 2.5, 0.5 내지 2.5, 0.5 내지 2, 0.5 내지 1.5 또는 0.5 내지 1 mm의 직경을 갖는 입자들로 분쇄된 분말의 형태일 수 있고, 가장 바람직하게는 0.5 내지 1 mm의 직경을 갖는 입자들로 분쇄된 분말의 형태일 수 있다.The cuttlefish bone may exert a stabilizing effect of heavy metal-contaminated soil even if the cuttlefish bone itself is used as it is, but may preferably be in the form of a pulverized powder in terms of increasing the contact surface with the contaminated soil. In this case, the cuttlefish bones are particles having a diameter of 0.5 to 3, 0.8 to 3, 1 to 3, 1.5 to 3, 1.5 to 2.5, 0.5 to 2.5, 0.5 to 2, 0.5 to 1.5 or 0.5 to 1 mm. It may be in the form of a powder pulverized into a powder, and most preferably in the form of a powder pulverized into particles having a diameter of 0.5 to 1 mm.
상기 갑오징어뼈는 중금속 오염 토양의 안정화 활성 증진을 위한 성분상의 개질을 위해 소성된 것일 수 있다. 구체적으로, 상기 갑오징어뼈는 500 내지 1000, 600 내지 1000, 700 내지 1000 또는 800 내지 1000℃의 온도에서, 1 내지 5, 1 내지 4, 1 내지 3 또는 1.5 내지 2.5시간 동안 소성된 것일 수 있다.The cuttlefish bones may be calcined for the modification of components for enhancing the stabilization activity of heavy metal-contaminated soil. Specifically, the cuttlefish bones may be calcined at a temperature of 500 to 1000, 600 to 1000, 700 to 1000, or 800 to 1000° C. for 1 to 5, 1 to 4, 1 to 3, or 1.5 to 2.5 hours. .
상기 갑오징어뼈는 이의 전체 중량 대비 산화칼슘(CaO)을 90 중량%, 92 중량%, 95 중량%, 97 중량% 또는 99 중량% 이상 포함하는 것일 수 있고, 구체적인 일 실시예에 따를 때 99 중량% 이상 포함하는 것일 수 있다.The cuttlefish bone may include 90% by weight, 92% by weight, 95% by weight, 97% by weight, or 99% by weight or more of calcium oxide (CaO) relative to its total weight, and according to a specific embodiment, 99% by weight % or more.
상기 토양은 중금속으로 오염된 토양으로서, 상기 중금속은 당업계에 통상적으로 중금속이라고 알려진 금속이라면 특별한 제한이 없으나, 구체적인 예시로서 비소(As), 납(Pb), 구리(Cu), 아연(Zn), 망간(Mn), 코발트(Co), 수은(Hg), 카드뮴(Cd), 주석(Sn), 크롬(Cr), 니켈(Ni) 또는 이들의 조합일 수 있고, 구체적인 일 실시예에 따를 때, 비소(As), 납(Pb), 아연(Zn), 구리(Cu) 또는 이들의 조합일 수 있다.The soil is soil contaminated with heavy metals, and the heavy metal is not particularly limited as long as it is a metal commonly known in the art as a heavy metal, but as a specific example, arsenic (As), lead (Pb), copper (Cu), zinc (Zn) , manganese (Mn), cobalt (Co), mercury (Hg), cadmium (Cd), tin (Sn), chromium (Cr), may be nickel (Ni) or a combination thereof, according to a specific embodiment , arsenic (As), lead (Pb), zinc (Zn), copper (Cu), or a combination thereof.
상기 조성물에 있어서, 안정화(Stabilization)란 중금속으로 오염된 토양으로부터 중금속이 용출되지 않도록 하거나 흡착하는 것으로서, 고정화(fixation)라는 용어로도 표현될 수 있다. 이는, 중금속이 토양 외부로 더 이상 누출되지 않도록 하여 토양을 이용하는 외부 환경에의 중금속의 영향을 저감하는 측면의 기술적 방안으로 해석될 수 있다.In the composition, stabilization refers to preventing or adsorbing heavy metals from the soil contaminated with heavy metals, and may also be expressed in terms of fixation. This can be interpreted as a technical measure in terms of reducing the influence of heavy metals on the external environment using soil by preventing the heavy metals from leaking to the outside of the soil anymore.
상기 조성물에 있어서, 오염된 토양을 안정화하기 위해 당업계에 토양 안정화 용도로서 주지된 물질을 추가로 포함할 수 있고, 갑오징어뼈의 안정화 활성이 유지되는 한 오염된 토양이 존재하는 환경에 맞추어 상기 조성물의 제형이나 형태를 자유롭게 변형하여 적용할 수 있음은 당업계 통상의 기술자에 자명할 것이다. In the composition, it may further include a material well known as a soil stabilization use in the art in order to stabilize the contaminated soil, and as long as the stabilizing activity of cuttlefish bones is maintained, it is suitable for the environment in which the contaminated soil exists. It will be apparent to those skilled in the art that the formulation or form of the composition can be freely modified and applied.
일 양태로서, 상기 조성물을 중금속으로 오염된 토양과 혼합하여 습윤양생하는 단계를 포함하는, 중금속으로 오염된 토양을 안정화하는 방법을 제공한다.In one aspect, there is provided a method for stabilizing soil contaminated with heavy metals, comprising the step of wet curing by mixing the composition with soil contaminated with heavy metals.
상기 습윤양생하는 단계는 상기 조성물과 토양을 합한 중량 대비, 10 내지 50, 10 내지 45, 10 내지 40, 10 내지 35, 10 내지 30, 15 내지 50, 15 내지 45, 15 내지 40, 15 내지 35 또는 15 내지 30 중량%의 증류수를 혼합하는 단계를 포함할 수 있고, 구체적인 일 실시예에 따를 때 15 내지 30 중량%의 증류수를 혼합할 수 있다.In the wet curing step, 10 to 50, 10 to 45, 10 to 40, 10 to 35, 10 to 30, 15 to 50, 15 to 45, 15 to 40, 15 to 35 relative to the combined weight of the composition and soil Alternatively, it may include mixing 15 to 30% by weight of distilled water, and according to a specific embodiment, 15 to 30% by weight of distilled water may be mixed.
상기 습윤양생하는 단계는 밀폐된 공간에서 1 내지 10주, 1 내지 9주, 1 내지 8주, 1 내지 7주, 1 내지 6주, 1 내지 5주, 2 내지 10주, 2 내지 9주, 2 내지 8주, 2 내지 7주, 2 내지 6주, 2 내지 5주, 3 내지 10주, 3 내지 9주, 3 내지 8주, 3 내지 7주, 3 내지 6주 또는 3 내지 5주 동안 수행될 수 있고, 구체적인 일 실시예에 따를 때 3 내지 5주 동안 수행될 수 있다.The wet curing step is 1 to 10 weeks, 1 to 9 weeks, 1 to 8 weeks, 1 to 7 weeks, 1 to 6 weeks, 1 to 5 weeks, 2 to 10 weeks, 2 to 9 weeks, for 2 to 8 weeks, 2 to 7 weeks, 2 to 6 weeks, 2 to 5 weeks, 3 to 10 weeks, 3 to 9 weeks, 3 to 8 weeks, 3 to 7 weeks, 3 to 6 weeks or 3 to 5 weeks It may be carried out, and according to a specific embodiment, it may be carried out for 3 to 5 weeks.
이 외, 상기 조성물, 중금속, 토양 등에 관련된 구체적인 설명은 상술한 바와 같다.In addition, specific descriptions related to the composition, heavy metals, soil, etc. are the same as described above.
일 양태로서 제공되는 중금속 오염 토양 안정화용 조성물은 우수한 효율로 토양 내 존재하는 중금속이 용출되지 않도록 안정화시킬 수 있는 효과가 있다.The composition for stabilizing heavy metal-contaminated soil provided as an aspect has an effect of stabilizing the heavy metal present in the soil from eluting with excellent efficiency.
일 양태로서 제공되는 중금속 오염 토양의 안정화 방법은 상기 조성물을 중금속으로 오염된 토양에 처리하는 단계를 포함하여, 효과적으로 토양 내 존재하는 중금속이 용출되지 않도록 할 수 있다.The method for stabilizing heavy metal-contaminated soil provided as an aspect includes the step of treating the soil contaminated with heavy metals with the composition, so that heavy metals present in the soil are effectively prevented from eluting.
도 1 내지 4는 중금속(As, Pb, Cu, Zn)으로 오염된 토양의 안정화능을 평가한 결과를 나타낸 것이다.1 to 4 show the results of evaluating the stability of soil contaminated with heavy metals (As, Pb, Cu, Zn).
이하, 보다 구체적인 설명을 위해 실시예를 들어 상세하게 설명하기로 한다. Hereinafter, examples will be described in detail for a more detailed description.
실험방법Experimental method
1. 안정화제의 제조1. Preparation of Stabilizer
갑오징어뼈를 광주광역시 시내 횟집에서 구해 실험실에서 3일 동안 흐르는 물에 담가 놓은 후, 다시 증류수로 세척한 뒤 후드에서 건조시켜 믹서로 분쇄하였다. 이것을 10 메쉬(직경 2mm)와 20 메쉬(직경 0.85mm) 체를 이용하여 걸러진 것 각각과, 10 메쉬로 거른 것을 승온 온도를 조절하지 않은 상태에서 900℃ 도달 후 2시간 동안 소성시킨 것을 CB10(Cuttlebone), CB20, CCB10(Calcined Cuttle Bone)라 명명하고 실험에 사용하였다. XRF(X선 형광분석)를 이용하여 분석한 갑오징어뼈의 주요 성분은 하기 표 1 에 나타내었다.Cuttlefish bones were obtained from a sushi restaurant in downtown Gwangju, soaked in running water for 3 days in a laboratory, washed again with distilled water, dried in a hood, and pulverized with a mixer. Each of this was filtered using a 10 mesh (diameter 2mm) and 20 mesh (diameter 0.85mm) sieve, and what was filtered through 10 mesh was calcined for 2 hours after reaching 900℃ without adjusting the temperature rise temperature. ), CB20, and CCB10 (Calcined Cuttle Bone) were named and used in the experiment. The main components of cuttlefish bones analyzed using XRF (X-ray fluorescence analysis) are shown in Table 1 below.
2. 안정화능 평가방법2. Stability evaluation method
하기 표 2에 나타낸 것과 같이, 밀폐용기에 50g의 오염토양을 담고 CB10, CB20, CCB10을 각각 토양 무게 대비 0 내지 10 중량%로 투입한 후, 오염토양과 안정화제를 합한 무게의 약 20 wt%의 증류수를 넣고 골고루 섞어주어 완전한 수화반응이 진행되도록 밀폐 상태에서 4주 동안 습윤양생 하였다. 4주 후 밀폐용기를 개방하고, 약 3-4일동안 충분히 건조시킨 후 다시 10 메쉬 이하의 크기로 분쇄하였다. 이것의 3g을 코니컬(cornical) 튜브에 0.1N의 HCl용액 15ml와 함께 넣고, 항온교반기에서 30℃, 100rpm, 1시간동안 교반한 후, 원심분리기를 이용해 고액 분리하고, 0.45㎛ 이하의 실린지 필터로 여과하였다. 필터링한 용액은 ICP-OES(Inductively Coupled Optical Emission Spectrometer)를 이용해 중금속의 농도를 분석하였다.As shown in Table 2 below, 50 g of contaminated soil was placed in an airtight container, and CB10, CB20, and CCB10 were added in an amount of 0 to 10% by weight based on the weight of the soil, respectively, and about 20 wt% of the combined weight of the contaminated soil and the stabilizer Distilled water was added, mixed evenly, and wet-cured for 4 weeks in an airtight condition so that complete hydration reaction proceeds. After 4 weeks, the sealed container was opened, dried sufficiently for about 3-4 days, and then pulverized to a size of 10 mesh or less. 3 g of this was put in a cornical tube with 15 ml of 0.1N HCl solution, stirred in a constant temperature stirrer at 30° C., 100 rpm, for 1 hour, and then solid-liquid separated using a centrifuge, and a syringe of 0.45 μm or less Filtration with a filter. The filtered solution was analyzed for the concentration of heavy metals using ICP-OES (Inductively Coupled Optical Emission Spectrometer).
(g)soil sample
(g)
(wt%)Stabilizer dosage
(wt%)
(g)Stabilizer dosage
(g)
(ml)H 2 O addition amount
(ml)
실험결과Experiment result
1. 원 시료의 오염정도 평가1. Evaluation of contamination level of raw samples
중금속 오염토양을 왕수로 추출한 총 중금속 농도로서, 비소 약 4030 mg/kg (1지역 우려기준 25 mg/kg), 납 7902 mg/kg (1지역 우려기준 200 mg/kg), 구리 249mg/kg (1지역 우려기준 150 mg/kg), 아연 705 mg/kg(1지역 우려기준 300 mg/kg)으로 나타났다. 이는 중금속 오염토양의 1지역 우려기준을 현저하게 초과하여 오염이 심각하였다. 0.1N HCl 용출에 따른 원 시료의 중금속 농도는 비소 약 21 mg/kg, 납 600 mg/kg, 구리 11 mg/kg, 아연 41 mg/kg으로 나타났다.The total concentration of heavy metals extracted from heavy metal-contaminated soil with aqua regia, about 4030 mg/kg of arsenic (25 mg/kg of concern in one area), 7902 mg/kg of lead (200 mg/kg of concern in one area), 249 mg/kg of copper ( It was found to be 150 mg/kg according to the local concern level) and 705 mg/kg of zinc (300 mg/kg according to the local concern standard). This markedly exceeded the standard of concern for area 1 of heavy metal-contaminated soil, and the pollution was serious. The concentration of heavy metals in the raw sample according to 0.1N HCl elution was about 21 mg/kg of arsenic, 600 mg/kg of lead, 11 mg/kg of copper, and 41 mg/kg of zinc.
2. 안정화능의 평가2. Evaluation of stabilization ability
갑오징어뼈 처리에 따른 안정화 분석결과는 도 1 내지 4에서 확인할 수 있다. 특히, CB20 또는 CCB10을 이용하여 안정화 처리 시 매우 현저한 중금속 용출 저감 효과를 보였으며, 4 중량% 투입 시 비소 약 88%, 납 약 97%, 구리 약 81%, 아연 86%의 용출저감 효과를 보였다. The results of the stabilization analysis according to the cuttlefish bone treatment can be confirmed in FIGS. 1 to 4 . In particular, when stabilizing treatment using CB20 or CCB10, a very remarkable effect of reducing the elution of heavy metals was shown, and when 4 wt% was added, about 88% of arsenic, about 97% of lead, about 81% of copper, and 86% of zinc showed the effect of reducing the elution. .
이는, 중금속으로 오염된 토양의 안정화를 위해 갑오징어뼈를 가공 처리시 매우 우수한 안정화 효율을 나타내는 안정화제로 이용될 수 있음을 암시하는 것으로서, 기존 산업부산물 안정화제보다 경제적이고 친환경적인 안정화제로서의 가치가 있다고 판단한다.This suggests that it can be used as a stabilizer showing very good stabilization efficiency when processing cuttlefish bones for stabilization of soil contaminated with heavy metals. judge that there is
Claims (9)
A composition for stabilizing heavy metal-contaminated soil containing cuttlefish bones.
The composition of claim 1, wherein the cuttlefish bone is pulverized into particles having a diameter of 0.5 to 3 mm.
The composition according to claim 1, wherein the cuttlefish bone is pulverized into particles having a diameter of 0.5 to 1 mm.
The composition of claim 1, wherein the cuttlefish bones are calcined at 800 to 1000°C for 1 to 3 hours.
The composition of claim 1, wherein the cuttlefish bone contains 90% by weight or more of calcium oxide (CaO) relative to its total weight.
The composition of claim 1 , wherein the soil is contaminated with arsenic (As), lead (Pb), zinc (Zn), copper (Cu), or a combination thereof.
A method for stabilizing soil contaminated with heavy metals, comprising the step of wet curing by mixing the composition of any one of claims 1 to 6 with soil contaminated with heavy metals.
The method according to claim 7, wherein the wet curing comprises mixing 15 to 30% by weight of distilled water based on the combined weight of the composition and the soil.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100247942B1 (en) * | 1997-10-06 | 2000-03-15 | 이기영 | Liquid fertilization composition containing chitin |
| KR101112742B1 (en) | 2011-01-25 | 2012-03-13 | 이한재 | The composition for purification of contaminated soil and the manufacturing method for greener clay block which uses the composition |
| KR20180134811A (en) * | 2018-12-10 | 2018-12-19 | 문경주 | Soft ground surface mixing and soil pavement process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100247942B1 (en) * | 1997-10-06 | 2000-03-15 | 이기영 | Liquid fertilization composition containing chitin |
| KR101112742B1 (en) | 2011-01-25 | 2012-03-13 | 이한재 | The composition for purification of contaminated soil and the manufacturing method for greener clay block which uses the composition |
| KR20180134811A (en) * | 2018-12-10 | 2018-12-19 | 문경주 | Soft ground surface mixing and soil pavement process |
Non-Patent Citations (1)
| Title |
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| 방명렬 외. 갑오징어뼈를 이용한 중금속의 흡착 특성. 대한위생학회지. 2000, Vol.15(1), pp.54-61. 1부.* * |
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