In-Lake Neutralization: Quantification and Prognoses of the Acid Load into a Conditioned Pit Lake (Lake Bockwitz, Central Germany)

Ulrich, Kai-Uwe; Bethge, Christian; Guderitz, Ina; Heinrich, Ben; Neumann, Volker; Nitsche, Claus; Benthaus, Friedrich-Carl

doi:10.1007/s10230-012-0206-4

Cited by 8 publications

(6 citation statements)

References 9 publications

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“…Likely sources of Fe loading into pit lakes include adjacent mine waste rock and underground workings, or the oxidation of pyrite in exposed (now submerged) pit wall surfaces in the lake. ,,,,− Iron concentrations of up to 20 mg L –1 were reported by the mining company for groundwater close to the lake. Concentrations may be higher at other locations around the lake, for example there are no bores in the waste rock material adjacent to the lake.…”

Section: Field Site: 2004–2005 Comprehensive Samplingmentioning

confidence: 99%

Quantifying Lake Water Quality Evolution: Coupled Geochemistry, Hydrodynamics, and Aquatic Ecology in an Acidic Pit Lake

Salmon

Hipsey

Wake

et al. 2017

Environ. Sci. Technol.

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Assessment of water quality evolution in the thousands of existing and future mine pit lakes worldwide requires new numerical tools that integrate geochemical, hydrological, and biological processes. A coupled model was used to test alternative hypothesized controls on water quality in a pit lake over ∼8 years. The evolution of pH, Al, and Fe were closely linked; field observations were reproduced with generic solubility equilibrium controls on Fe(III) and Al and a commonly reported acceleration of the abiotic Fe(II) oxidation rate by 2-3 orders of magnitude. Simulations indicated an ongoing acidity loading at the site, and the depletion of Al mineral buffering capacity after ∼5 years. Simulations also supported the existence of pH limitation on nitrification, and a limitation on phytoplankton growth other than the commonly postulated P and DIC limitations. Furthermore, the model reproduced the general patterns of salinity, pH, Al, and Fe during an uncontrolled river breach in 2011, however, incorporating sediment biogeochemical feedbacks is required to reproduce the observed postbreach internal alkalinity generation in the lake. The modeling approach is applicable to the study of hydrological, geochemical, and biological interactions for a range of lake and reservoir management challenges.

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Section: Field Site: 2004–2005 Comprehensive Samplingmentioning

confidence: 99%

Quantifying Lake Water Quality Evolution: Coupled Geochemistry, Hydrodynamics, and Aquatic Ecology in an Acidic Pit Lake

Salmon

Hipsey

Wake

et al. 2017

Environ. Sci. Technol.

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“…To apply open cut mining methods has a consequence of environmental impact and requires an integrated process both acid mine drainage treatment and successful revegetated. Sustainable AMD treatment is a critical process that can be integrated during mining and reclamation process of post mining (Ulrich et al, 2012). Reclamation on post mining is revegetated the area with tree species selected reference with forestry procedure (Permenhut P.60, 2009).…”

Section: Introductionmentioning

confidence: 99%

Role of the Tree Species Selected in Developing Swampy Forest System for Passive Treatment of Acid Mine Drainage

Noor

Arifin²,

Priatmadi³

et al. 2022

Sustainability

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Coal mining is one of economic sector that requires forestry area in Indonesia. Most of coal mining concession are forestry area loan use from the government and during mining operation facing with acid mine drainage (AMD). AMD passive treatment can be integrated with revegetation process that related with better handling of overburden (OB) with potential acid forming (PAF) during reclamation processed. The most expensive methods and uncertainty process are the use of quick lime in treatment of AMD. During operation and preparing mine closure stage need to create the effective one to comply with the regulation. “Swampy Forest (SF) system” is an alternative method of sustainable and naturally process. Selecting the appropriate tree species as a preliminary process to develop a better SF system by batch experiment in the form of a forest constructed wetland. The tree species selected are Nauclea orientalis (lonkida tree) and Melaleuca cajuputi (kayuputih tree) as non-local species then Nauclea subdita (bangkal tree) and Melaleuca leucadendron (galam tree) as local species have been selected. Local species higher in Fe and Mn adsorption in pH of AMD <4 then nonlocal species higher in Fe and Mn adsorption on pH of AMD >4 condition.

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“…수의 형성 가능성과 수질예측 그리고 경제적인 수질오염 방지 대책 마련은 폐광 이후 광산주변 환경오염 방지를 위해서 당연시 되는 추세이다 (Fortygin et al, 2009;Jewell, 2009;Ulrich et al, 2012). 최근 들어 국내 광산물 수요에 대처하기 위해서 국내 자원개발사들이 해외에서 광산개발을 적극적으로 추진 하고 있다.…”

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“…국내의 경우 대규모 노천 탄광 및 금속 광 개발이 없었던 관계로 노천채굴적에서 산성호수로 인 한 환경오염 사례가 적었기 때문에 국내 자원개발사에게 기술적인 부담이 될 수 있다. 또한 세계적으로 환경법규 의 강화 추세와 현지 이해 당사자들의 환경보전 요구로 막대한 경제적 부담을 지게 될 개연성이 있다 (Ulrich et al, 2012;Boak and Beale, 2008). 따라서 본 연구에서 는 노천광산호수의 생성 및 수질 예측 기법 그리고 수질 오염 방지기술을 조사하여 해외에서는 어떠한 접근법들 이 사용되는지를 요약하였다.…”

unclassified

“…인접한 강에 수로를 개설하고 강물을 15,000 L/s 속도로 3달에 걸쳐 채굴적을 담수하였다(Boak and Beale, 2008). 사례를 요약하면 폐광 이후 광산호수의 수질오염방지 는 물론 휴양지역, 자연경관 보전 혹은 수계 관리의 일환 으로 활용하고자 계획할 경우 광역수계와의 수지관계, 채굴적 사면의 붕괴, 수질의 악화 가능성에 대한 평가를 사전에 수행하는 것이 바람직하다(Ulrich et al, 2012). 인산염과 질산염을 광산호수에 투입한 다.…”

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Review on Pit Lake Treatments

Cheong¹,

Park²

2014

ksmer

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It is reported that pit lakes formed after the closure of open pit mines around the world can become acidic leading to contamination of the local environment. According to the literature, it is strongly recommended that countermeasures based on predictions of water quality be required for better decision before the closure of open pits. One of the useful tools for prediction of water quality before mine closure is the method which integrates several models such as hydraulic, limnological and geochemical models. It could predict changes in parameters such as stratification, alkalinity, acidity, dissolved metals in a pit lakes over time and then be used for decision making and design of pit closure plans. Attempts have been made to prevent and remediate these acidic pit lakes, using filling of waste rock and water, bacterial sulfate reduction reactions and lime dosing systems.

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In-Lake Neutralization: Quantification and Prognoses of the Acid Load into a Conditioned Pit Lake (Lake Bockwitz, Central Germany)

Cited by 8 publications

References 9 publications

Quantifying Lake Water Quality Evolution: Coupled Geochemistry, Hydrodynamics, and Aquatic Ecology in an Acidic Pit Lake

Quantifying Lake Water Quality Evolution: Coupled Geochemistry, Hydrodynamics, and Aquatic Ecology in an Acidic Pit Lake

Role of the Tree Species Selected in Developing Swampy Forest System for Passive Treatment of Acid Mine Drainage

Review on Pit Lake Treatments

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