An environmental evaluation of deep-sea mine tailings placement (DSTP)

深海尾矿安置（DSTP）是采矿业将处理过的泥浆和岩石废料（尾矿）直接排放到海洋环境中的过程。除了渔业、污染、能源开采、旅游、富营养化、气候变化以及未来可能来自深海底采矿等其他压力来源外，深stp还可能影响海洋生态系统。在更广泛的背景下，从多个部门（学术界、政府、社会、工业和监管机构）汲取专业知识、数据和经验教训，并与国际深海观测项目、数据库和管理联盟合作，DSTP的环境管理可能最有效。该项目利用项目合作伙伴、矿山运营商PT. Amman Mineral Nusa Tenggara提供的长期沿海和深水环境监测数据集，研究了与DSTP相关的挑战，该数据集位于印度尼西亚Sumbawa岛的Batu Hijau矿山。该项目将审查环境条件变化趋势的数据，并审查气候变化或采矿方法变化等因果因素，以确定驱动因素。这项研究得到了该矿环境小组的支持，旨在提供新的知识，指导该矿制定更有效的做法，并确保未来有一个强有力的监测方案。

Deep-Sea Tailings Placement (DSTP) is the process whereby mining industries discharge processed mud- and rock-waste slurries (tailings) directly into the marine environment. DSTP can impact ocean ecosystems in addition to other sources of stress, such as from fishing, pollution, energy extraction, tourism, eutrophication, climate change and, potentially in the future, from deep-seabed mining. Environmental management of DSTP may be most effective when placed in a broader context, drawing expertise, data and lessons from multiple sectors (academia, government, society, industry, and regulators) and engaging with international deep ocean observing programs, databases and stewardship consortia. This project examines the challenges associated with DSTP using a long-term coastal and deep-water environmental monitoring dataset provided by the project partner, mine operator PT. Amman Mineral Nusa Tenggara, based at the Batu Hijau mine in Sumbawa Island, Indonesia. The project will examine data for trends of changing environmental conditions and examine causal factors such as climate change or changing mining practices to identify drivers. This research, supported by the environmental team at the mine, aims to provide new knowledge with which to guide the mine to develop both more efficient practices and to ensure a robust monitoring programme for the future.