On 23 October 2026, Discovery Alert reported that Oman’s expanding copper sector is facing mounting pressure on water supply, with a technical assessment citing a potential process-water shortfall of 11,500 m³/day against a conservative aquifer yield of 8,200 m³/day at nameplate demand. The report says limited public disclosure of audited water withdrawals, consumption and recycling leaves major questions unresolved for operators and prospective suppliers.
- Oman’s 92 main desalination plants produced about 455.36 million m³ in 2024, while 67 treatment plants added about 119.5 million m³ of treated wastewater; a national water symposium cited a 2024 water-balance deficit of about 213 million m³. Discovery Alert
- A TSD Consultancy assessment of Oman’s Block 14 copper-gold package cited 11,500 m³/day of process-water need against 8,200 m³/day of conservative aquifer yield, a 28% shortfall; neither the project owner nor an Omani regulator has confirmed the figures. Discovery Alert
- Mazoon is under construction, was reported 35% complete in 2025, is planned to produce about 115,000 tonnes of copper concentrate a year and is expected to begin production in 2027. Discovery Alert
- Audited withdrawal, consumption and recycling figures for Mazoon, Lasail, Al Ghuzayn and Washihi-Mazzaza remain limited in public sources. Discovery Alert
Copper expansion meets a constrained water system
Oman has moved from dormant assets toward larger, processing-intensive copper operations: the Lasail restart, production at Al Ghuzayn and the Mazoon Copper Project under construction. Discovery Alert Minerals Development Oman restarted copper-concentrate exports from Lasail after roughly three decades, Mawarid Mining’s Al Ghuzayn began production in the second quarter of 2024, and shipments from Al Hadeetha Resources’ Washihi-Mazzaza concession continue. Discovery Alert
Mazoon represents the largest step-up: it is planned to produce about 115,000 tonnes of copper concentrate a year, with production expected in 2027, and was reported 35% complete in 2025. Discovery Alert The country’s copper-concentrate exports reached about 95,000 tonnes in 2025, while the sector now spans 28 concession areas managed by 13 companies. Discovery Alert
The policy direction also points toward more domestic processing through the Mineral Wealth Law, Royal Decree 19/2019, and Vision 2040, which favour domestic processing over raw extraction. Discovery Alert More grinding and flotation require process water, while concentrators, smelting capacity and supporting infrastructure also require water and power. Discovery Alert
Supply pressure and disclosure gaps
Oman’s 92 main desalination plants produced about 455.36 million m³ in 2024, and 67 treatment plants added about 119.5 million m³ of treated wastewater. Discovery Alert Despite those contributions, a national water symposium cited a water-balance deficit of about 213 million m³ for 2024. Discovery Alert
Oman Power and Water Procurement Co. projects peak demand on the Main Interconnected System rising from roughly 1.17-1.21 million m³/day in 2024-2025 to about 1.48-1.50 million m³/day by 2031-2032. Discovery Alert Current and planned desalination capacity stands above 1.9 million m³/day, compared with safe wellfield capacity of about 327,000 m³/day, while groundwater levels decline and seawater intrudes into coastal aquifers. Discovery Alert
The report highlights the Block 14 assessment’s 11,500 m³/day process-water requirement against 8,200 m³/day of conservative aquifer yield, a 28% shortfall at nameplate demand. Discovery Alert The assessment was published by TSD Consultancy on LinkedIn in June 2026, but neither the project owner nor an Omani regulator has confirmed it; it illustrates a risk pattern rather than a verified project figure. Discovery Alert
Heat adds a separate operating burden. Oman’s mean maximum temperature reached 34.1°C in 2025, up from 32.9°C in 2024, while an ERA5-based study published in Sustainability in February 2026 found coastal northern Al Batinah experiences heat-index conditions above 52°C; summer temperatures in parts of the interior approach 50°C. Discovery Alert The source also identifies seawater for copper extraction as a possible route around aquifer limits, while noting unresolved corrosion, pumping and brine questions for Omani projects. Discovery Alert
Specification Read
The reported Block 14 process-water requirement converts from 11,500 m³/day to 11.5 MLD. The source does not report a population-equivalent loading or a wastewater-quality profile, so neither can be calculated reliably. Discovery Alert For plant owners, this event bears directly on source-water availability, reuse and the treatment train needed to recover water from copper-processing streams.
A conventional mining and metals wastewater train would screen incoming flows, remove suspended solids, apply biological treatment where the wastewater is amenable, and finish with tertiary treatment and disinfection. For concentrator tailings and water-recovery duties, DAF or clarifier selection for mining and metals wastewater becomes relevant at the solids-separation stage. If solids are predominantly fine, buoyant and difficult to settle, flotation may be more suitable than a conventional gravity clarifier.
For zero-liquid-discharge or stringent reuse requirements, water-purification process selection becomes the next design question, while MBR versus conventional activated sludge for mining wastewater is relevant where a compact, high-quality biological stage is needed. The source does not provide the flow split, BOD or COD, tailings characteristics, salinity or discharge standard, so those inputs must be established before a treatment class or equipment capacity can be specified.
If your plant looks like a copper concentrator or metals-processing operation with process-water demand of 11,500 m³/day, variable tailings solids, water-reuse pressure and access to a constrained aquifer, this means water balance, recovery rate and solids separation should be resolved before comparing treatment alternatives.
FAQ
What process-water demand was reported for the Block 14 copper-gold package?
The TSD Consultancy assessment cited about 11,500 m³/day of process water at nameplate demand against a conservative aquifer yield of about 8,200 m³/day, producing a reported 28% shortfall. The assessment was published on LinkedIn in June 2026, and neither the project owner nor an Omani regulator had confirmed the figures. Discovery Alert
What does this mean for wastewater reuse and zero-liquid-discharge equipment?
It means reuse and water-recovery requirements may be central to the project rather than optional additions, particularly if a new source of water cannot be secured reliably. However, the source does not report the tailings-flow split, recovery target, wastewater contaminants or discharge limits, so it does not support selecting a DAF, MBR or zero-liquid-discharge configuration from the process-water figure alone. Discovery Alert
How should an equipment supplier approach supplier selection for this application?
Selection should begin with verified site inputs: peak and average water flows, tailings characteristics, salinity, reuse targets and applicable discharge requirements. The public source does not provide those operating parameters, and it notes limited audited withdrawal, consumption and recycling data for Oman’s major copper projects, making site-specific verification essential before comparing bids. Discovery Alert
What cost and delivery questions should be resolved before ordering a plant?
The source does not report equipment cost, construction cost or delivery lead time. Buyers would therefore need to request separate vendor quotations against confirmed site data, including duty and standby requirements, local support, installation conditions and the treatment performance needed for reuse. The 11,500 m³/day figure describes the Block 14 assessment’s process-water requirement, not a specified wastewater-plant capacity. Discovery Alert
