Physical Separation of Heavy Metals in Contaminated Soil Simulant near Abandoned Metal Mines

نویسندگان

چکیده

본 연구에서는 물리적 선별기술을 이용하여 폐금속광산 주변의 중금속으로 오염된 토양 모사체를 처리하고자 하였다. 자력선별을 적용한 경우 5,000gauss 이상의 조건에서 평균적으로 납 53%, 아연 67%, 비소 66%, 카드뮴 71%의 제거율을 보이며 부피를 약 16% 감소시켰다. 코로나 방전형 정전선별 적용 시 공급전압에 따른 살펴본 결과, 납은 –35kV일 때 38%, 아연과 카드뮴의 –30kV일 각각 45%와 48%, 비소는 –25kV 38%로 가장 높았다. 하지만 비용적인 부분과 추후 처리해야 할 오염 토양의 고려할 –10kV 조건이 최적이라 사료된다.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Leachability of Arsenic and Heavy Metals from Mine Tailings of Abandoned Metal Mines

Mine tailings from an abandoned metal mine in Korea contained high concentrations of arsenic (As) and heavy metals [e.g., As: 67,336, Fe: 137,180, Cu: 764, Pb: 3,572, and Zn: 12,420 (mg/kg)]. US EPA method 6010 was an effective method for analyzing total arsenic and heavy metals concentrations. Arsenic in the mine tailings showed a high residual fraction of 89% by a sequential extraction. In To...

متن کامل

Blood Cadmium Concentration of Residents Living near Abandoned Metal Mines in Korea

The purpose of this study was to investigate demographic and lifestyle variables and blood cadmium concentrations in residents living near abandoned metal mines in Korea. Blood cadmium concentrations were measured in 15,161 subjects living around abandoned metal mines (exposed group, n = 14,464) and compared with those living in designated control areas (control group, n = 697). A questionnaire...

متن کامل

Urinary arsenic species concentration in residents living near abandoned metal mines in South Korea

BACKGROUND Arsenic is a carcinogenic heavy metal that has a species-dependent health effects and abandoned metal mines are a source of significant arsenic exposure. Therefore, the aims of this study were to analyze urinary arsenic species and their concentration in residents living near abandoned metal mines and to monitor the environmental health effects of abandoned metal mines in Korea. ME...

متن کامل

Removal of Heavy Metal from Contaminated Soil with Chelating Agents

Removal of copper and nickel by the addition of the biodegradable chelating agent, chitosan and ethylenediamine tetraacetic acid (EDTA), was investigated, alongside the reaction of a reference compound sodium citrate for comparison. The artificial-contaminated soils were used in this study. The experiments showed that the extraction ability for copper and nickel from the contaminated soil decre...

متن کامل

Remediation of soil contaminated with the heavy metal (Cd2+).

Soil contamination by heavy metals is increasing. The biosorption process for removal of the heavy metal Cd(2+) from contaminated soil is chosen for this study due to its economy, commercial applications, and because it acts without destroying soil structure. The study is divided into four parts (1) soil leaching: the relationships between the soil leaching effect and agitation rates, solvent c...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the Korean Society of Mineral and Energy Resources Engineers

سال: 2022

ISSN: ['2288-0291', '2288-2790']

DOI: https://doi.org/10.32390/ksmer.2022.59.1.001