Surface Metal
Nitrate risk reduction
A collaborative approach to the safe management of nitrate in surface metal operations.
Reduce nitrate leaching across complex surface metal mining operations
Reduce nitrate leaching across complex surface metal mining operations
Nitrate contamination is a key challenge in surface metal mining, where large-scale blasting and significant water interaction can lead to nitrate leaching into pit water and surrounding systems. Orica’s nitrate risk reduction solution combines a proven framework with advanced bulk systems including Fortis™ Protect, surface delivery systems, and technical expertise to identify and reduce nitrate pathways across the operation. By improving explosive selection, loading practices, and detonation reliability, we help reduce environmental impact while maintaining productivity, improving compliance, and optimising water management outcomes.
Benefits
Benefits
Driven by innovation and backed by our global research, development and technical networks, we deliver solutions that solve real operational challenges.
Improve safety
Operational efficiency and performance
Social license to operate
Blast quality and performance
Solution powered by
Blasting Solutions
Nitrate Risk Reduction Consulting Service
Blasting Solutions
Fortis™ Protect
Blasting Solutions
i-kon™
Blasting Solutions
Bulkmaster™
Blasting Solutions
Surface Delivery Systems
Blasting Solutions
Technical Services
Blasting Solutions
Training
Delivering value where it matters.
Additional benefits
Delivering value where it matters.
Why surface metal operations need nitrate risk reduction
Compliance and environmental performance
Reduce nitrate discharge into pit water systems and support regulatory compliance across large-scale mining operations.
Productivity at scale
Optimised blasting practices maintain fragmentation and throughput while reducing explosive loss and nitrate formation.
Integrated operational control
Align blasting products, processes, and systems across the operation to reduce variability and improve outcomes.
Insights
Identify nitrate pathways using site audits and monitoring, enabling targeted improvements across the value chain.
Compliance and cost optimisation
Reduce reliance on water treatment and remediation by addressing nitrate risk at source.
Case study
Orica and De Beers achieve 78.5% in nitrate reduction at Gahcho Kué.
Nitrate risk reduction framework.
Orica partnered with De Beers Canada to achieve a 78.85 per cent reduction in nitrate concentrations through its Nitrate Risk Reduction framework. The project focused on identifying nitrate pathways, improving blast design and loading practices, and enhancing detonation efficiency through technical services support.
Following implementation of best practices, Fortis™ Protect bulk explosive solutions were introduced to reduce nitrate leaching in wet conditions. The combined approach delivered significant environmental improvements while maintaining productivity and blast performance, demonstrating the value of an integrated, scalable nitrate mitigation solution.
Frequently Asked Questions (FAQs)
What causes nitrate contamination in surface metal mining?
Nitrate contamination occurs when ammonium nitrate-based explosives are not fully detonated or interact with water in open pit environments, allowing nitrates to leach into pit water and groundwater systems.
How can surface metal mines reduce nitrate leaching?
Surface metal mines can reduce nitrate leaching by improving blast design, optimising explosive selection, and implementing best practices supported by a structured nitrate reduction framework.
Does nitrate mitigation affect blast performance?
No. Effective nitrate mitigation improves detonation reliability and reduces explosive loss, maintaining or improving blast performance and productivity.
What solutions help reduce nitrate risk in surface metal operations?
Bulk explosives such as Fortis™ Protect, combined with precise delivery systems and reliable initiation technologies, help reduce nitrate generation and improve outcomes.
Why is nitrate management important in surface metal mining?
Surface metal operations manage large water systems, making nitrate control essential for environmental compliance, water quality, and operational sustainability.
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