Optimizing water treatment with online sensing and advanced analytics
Overlaying real-time advanced analytics on data from online sensing can help to stabilize operations and increase capacity in water-treatment facilities.
By Jay Agarwal, Lapo Mori, Fritz Nauck, Johnathan Oswalt, Dickon Pinner, Robert Samek, and Pasley Weeks – Metals and mining companies are adapting to an operating environment in which water is highly regulated, experiences unforeseen supply shocks, and carries substantial social value. By 2024, water-operating expenses for these businesses are estimated to increase by a 1 to 4 percent compound annual growth rate (CAGR), with a 4 to 7 percent CAGR expected for water-capital spending. Consequently, these metals and mining companies have made significant investments—an estimated $15 billion in 2019 alone—to reduce water withdrawal and increase water efficiency in operations, as well as mitigate reputational risk.
Digital tools can optimize water-management operations—offering stability, reduced costs, and deferred expenditures for new capacity. This article describes the application of such tools in water treatment (see, “The five domains of water management”).
Central to sustainable operations is water reuse, wherein water is reclaimed after processing and treatment (to remove metals, reagents, or suspended solids). Reuse obviates the need for additional fresh water; it significantly reduces water-operating expenses and is critical to addressing low water availability in stressed areas. Anglo-American, for instance, has pledged to adopt techniques that will allow for more than 80 percent water reuse at their mining facilities, saving an estimated $15 million per year. more>
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