The Atacama Desert in northern Chile is rich with mineral deposits, including Teck’s Quebrada Blanca Phase 2 (QB2) project, one of the largest undeveloped copper resources in the world. However, what the region has in an abundance of minerals, it lacks in available freshwater.
阿塔卡马沙漠是地球上最干燥的地方之一,对采矿过程至关重要的淡水是一种谨慎使用的资源。为了保护本商品,作为QB2项目的一部分,Teck正在建立大型海水淡化厂,以便可以使用淡淡的海水代替采矿过程的淡水。
“鉴于我们对太平洋的邻近,我们希望在QB2使用海水以使用海水,因此我们可以保护该地区的淡水供应并支持我们的可持续发展承诺,”Teck的QB2项目港口经理Francisco Raynaud说。“为了实现这一目标,我们与IDE技术合作,世界上最突出的脱盐公司之一,拥有大规模植物的经验,设计和工程我们的海水淡化设施。”
The Desalination Process
海水淡化过程通过反渗透锻炼,其中半透膜用于去除离子,分子和较大的颗粒以产生淡水。
海水被泵入脱盐厂,净化,然后用五个助推器站泵送了4,400米的高度到QB2的浓缩器厂,在那里它将用于采矿过程。剩余的浓缩盐水被泵回太平洋,深度40米(距离海岸750米),以确保与海洋生态系统兼容足够的稀释。
用于收集海水的吸管直径几乎是米,距离土地近500米,深度为30米,旨在确保完全符合沿海保护要求。
When operating at full capacity, the desalination plant will purify about 1,000 litres per second, enough to fill an Olympic-size pool in 40 seconds.
Water is one of Teck’s most important sustainability issues and a key focus of our sustainability strategy. Projects such as the desalination plant in Chile are part of Teck’s commitment to reducing freshwater consumption and improving our water performance. To learn more about Teck’s approach to water stewardship, visitteck.com/respoSitibility.