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How to facilitate the optimization of water use and reuse in mining operations?

How to facilitate the optimization of water use and reuse in mining operations?


Status: Open

Opened: 29 Mar 2023 - Closed: 15 Jun 2023

  • environment & sustainability
  • water resources
  • water management
Sustainable Development Goal 6 (Ensure availability and sustainable management of water and sanitation for all) has as one of its targets to substantially increase water-use efficiency across all sectors and ensure sustainable withdrawals and supply of freshwater to address water scarcity and substantially reduce the number of people suffering from water scarcity.
**Value elements** Solutions focused on reducing consumption and losses (such as water evaporation). New technologies that do not require replenishing water or new hydrometallurgical processes that avoid water losses (losses due to evaporation/filtration) are valued. Technologies that allow for measuring: i) water use, ii) water losses due to evaporation, filtration, and/or retention in tailings, iii) variables of quantity and quality based on the supply watersheds. Circular economy-focused solutions that maximize the number of times water remains in the circuit, reusing it and admitting other types of water, such as groundwater. Incorporating a water balance diagnostic approach with a watershed focus and climate change projection. Aligned with Peruvian regulations that facilitate/enable joint work with ANA. Ensuring water quality during discharge and post-operations in a sustainable manner. Taking advantage of different water sources, being efficient in water collection, and/or making use of undervalued sources. Having a multisectoral vision, including, for example, the energy and/or agricultural and/or territorial sectors (not only the mine but also the water sources and direct and indirect influence areas). Solutions that incorporate the diagnosis/measurement of the natural source (natural excesses in water quality) that validate initial conditions and facilitate exception parameter permits. Solutions that facilitate the use of treated water before returning to the watershed and are self-sustainable. Solutions focused on avoiding perpetual treatment. Technologies related to better tailings management to reduce water footprint. Solutions focused on the energy efficiency of pumping equipment. Solutions for treating sulfate and acidic water.

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