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The Case Against Submarine Tailings Disposa

tailings managementthis handbook discusses a systematic, risk-based approach to tailings management. it provides examples of tailings containment, disposal and rehabilitation, and points to future trends in tailings management. it does not provide specific consideration of riverine, shallow submarine or deep submarine tailings placement methods. submarine ta

tailings managementthis handbook discusses a systematic, risk-based approach to tailings management. it provides examples of tailings containment, disposal and rehabilitation, and points to future trends in tailings management. it does not provide specific consideration of riverine, shallow submarine or deep submarine tailings placement methods. submarine tailings disposal violates the water framework tailings disposal in a fjord, regardless of the contents, would make it impossible to achieve good status due to the smothering of the bottom. in addition, the disposal could be in breach of article 4.1 if the tailings have high concentrations of priority chemical substances. tailings.info offshore disposaloffshore tailings disposal is the discharge of tailings to rivers, lakes and seas (figure 1). submarine tailings disposal (std) is perhaps the most common offshore disposal technique and involves the deep water discharge of tailings to the sea (moore, pelletier et al. 2002). i·~·i~3·b~l1·t·iibpr- regulatory aspects of submarine i i i regulatory aspects of submarine tailings disposal i -the quartz hill case history - i i by c.a. hesse and k.m. reim i abstract the quartz hill molybdenum project, in southeast alaska, was the first mining project to attempt submarine tailings disposal in norways fjordsmethods to manage their tailings. an alternative to land-based tailings storage is the disposal of tailings material at sea, in a practice known as deep sea tailings discharge or submarine tailings disposal (std). std is undertaken in only a handful of locations worldwide, with a significant number of these in norways fjord regions. tailingstailings dams are often the most significant environmental liability for a mining project. environmental considerations and case studies. the fraction of tailings to ore can range from 9098% for some copper ores to 2050% of the other (less valuable) minerals. marine and riverine discharges of mine tailingsmarine and riverine discharges of mine tailings 2012 3 preface this report presents a world-wide inventory of operating mines that dispose of mine tailings to marine and riverine waters and a review of what is known about the environmental impacts of those discharges. introduction submarine tailings disposaltailings disposal costs relative to the cost of land-disposal. the u.s. department of the interior concluded that, on average, std use resulted in a 17% reduction in capital costs and a 1.6% increase in operating costs.4 how is submarine tailings disposal done? mines have a long history of dumping their waste into the sea. an alternative: deep-sea tailings placementdeep-sea mine tailings placement (dstp) is an alternative to land-based mine-waste disposal, whereby mineral ore is converted into slurry and transported via a pipeline to processing plants open access mineralstailings, one option, which has recently regained atention is submarine tailings disposal (std). in order to evaluate which waste management option is most suitable for a particular site, many parameters have to be considered. submarine tailings disposal seems to be an attractive option for

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ecological impacts of large-scale disposal of mining waste in deep-sea tailings placement (dstp) from terrestrial mines is one of several large-scale industrial activities now taking place in the deep sea. the scale and persistence of its impacts on seabed tailings.info tailings storage case studiessillamae metal and chemical production plant, estonia (uranium tailings polluting the baltic sea) stava, nr. trento, italy (impoundment failure with a 268 death toll) los frailes tailings dam failure, nr sevilla, spain (1998 impoundment failure) lisheen mine, county tipperary, ireland. africa: mufulira mine, zambia (underground breach of a mine tailings disposal methodsin the past, mill tailings have been discharged onto hillsides or directly into lakes or streams. these practices are now prohibited by state and federal laws. today, the universal disposal method for tailings is the tailing pond. tailings are slurried with water and pumped to tailing ponds for settling. environmentally sustainable mining: the case of tailings in a more recent case, bhp billiton and its partner vale may be liable for as much as us$5 billion following the disaster at their jointly owned iron ore project, samarco, in brazil (see section 6). in any case, a decision against permitting mines in environmentally vulnerable sites is not unheard-of. submarine tailings disposal papua new guinea mine watch posts about submarine tailings disposal written by ramunickel. the national aka the loggers times. the constitutional and law reform commission has called on stakeholders in the islands region to participate in the review of environmental and mining laws relating to management and disposal of tailings or mining waste. submarine tailings disposal (std) for mines: an introduction the basic submarine tailings disposal (std) design consists of a tailings line to a deaeration / mixing chamber, with a seawater intake line, and discharge to location and depth allowing gravity flow of a coherent density current to final sedimentation area. such std systems can place mine tailings mining waste treatment technology selectiontechnology the reason for consideration of submarine tailings disposal is related to the large land requirements, drastic failures of tailings dams, and the resultant cost in terms of loss of human life and environmental impacts. 3. advantages backfilling and subaqueous disposal systems have the following advantages: permanent tailings disposal options for the kensington mine at berners however, the feasibility of submarine tailings disposal is almost entirely dependent on specific cases (tomich kent, pers. comm.), and in the case of the aj mine project in juneau, ak, the epa granted an exemption to the echo bay mining co. and agreed to extensive studies and research that could lead to approved submarine tailings disposal (us world map of submarine tailings disposal, 1980guinea and indonesia still use submarine tailings disposal. from 2003, following the world bank reports on mines and environment, there was a strong international movement against riverine and submarine tailings disposal. along with this, local communities and indigenous peoples have fought hard battles. the international campaigns showed results. submarine and deep-sea mine tailing placements: a review of management of mine tailings is a major environmental issue and economic burden. submarine tailing disposal and deep-sea tailing placement practices are increasing. main impacts include: hyper-sedimentation, toxicity, turbidity and changes in sediment grain morphology. national and international legal frameworks exist but need

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gold mining and submarine tailings disposal: review and case request pdf on researchgate gold mining and submarine tailings disposal: review and case study environmental impacts associated with submarine tailings disposal (std) of gold mine wastes vary gold mining and submarine tailings disposalgold mining and submarine tailings disposal review and case study by evan edinger a fringing coral reef in buyat bay, indonesia, june 2002. this reef at 3 m depth is closest to gold mine tailings outfall. note high water turbidity, and the mixture of live and dead corals. this content downloaded from on sat, 13 jul 2019 12:21:05 utc potential for submarine tailings disposal to affect the highly productive once tailings deposition ceases (46). submarine disposal of tailings limits the potential for reprocessing of tailings for additional mineral extraction in the future. this report summarizes an evaluation of the effect a change in policy to allow std would have on the availability of minerals to the united states (u.s.). a new procedure for deep sea mining tailings disposalbackfill disposal, and tailings reuse disposal [8]. submarine tailings disposal consists of surface submarine tailings disposal and deep sea submarine tailings disposal, depending on the depth of tailings discharge in the ocean. the tailings discharge depth of deep sea submarine tailings disposal is below 10001100 m [3,8]. (pdf) submarine tailings disposal (std)a reviewone option used in the past was the marine shore or shallow submarine deposition of this waste material in some parts of the world. submarine tailings disposal (std)a review in the case framework for responsible mining:david m. chambers, ph.d. dr. chambers is the president of the center for science in public participation, a non-profit corporation formed to provide technical assistance on mining and water quality to public interest groups and tribal governments. submarine tailings disposal papua new guinea mine watch posts about submarine tailings disposal written by ramunickel. papua new guineas secretary for the department of environment and conservation, wari iamo, says the ramu nickel mine does not have an approved operations environmental plan and cannot currently dump any mine waste into the sea. submarine disposal of mine tailingstechnical / policy papers on submarine disposal of mining wastes (tailings) by dr. robert moran and others. draft paper on submarine disposal of mine tailings for on-land or submarine tailings disposal? pros and conson-land or submarine tailings disposal? pros and cons bernhard dold sumirco (sustainable mining research consultancy), chile abstract mine tailings management is a major issue for the mining industry and a limiting factor due to competitive land use for example with agriculture or tourism. most of mine tailings are stored underwater placement of mine tailings: case examples and ellis dv, poling g, pelletier c (1994) case studies of submarine tailings disposal: volume ii further case histories and screening criteria. us department of the interior, ofr 37-94 google scholar