Dewatering

Dewatering in mining involves removing excess groundwater, surface water, seepage, or process water from pits, underground workings, tailings, or slurries. While essential for safety, productivity, and environmental compliance, it often faces recurring challenges—especially in Indonesia’s high-rainfall, seismic, and remote mining sites (nickel, coal, copper, gold). These problems can lead to flooding, equipment failures, high costs, […]

In the mining industry, dewatering structures refer to engineered systems, installations, or physical features designed to remove, control, or manage excess water—such as groundwater, surface runoff, seepage, or process water—from mining sites, excavations, or tailings facilities. These structures prevent flooding, stabilize pit walls or underground workings, reduce pore water pressure, and enable safe, continuous operations.

A dewatering system in mining is the integrated network of equipment, infrastructure, processes, and controls designed to remove, manage, and control excess water from a mining operation. This includes groundwater seepage, surface runoff, rainfall accumulation, and water from process slurries or tailings that could otherwise flood workings, destabilize ground, damage equipment, or create safety and

Dewatering in mining isn’t limited to a single fixed number of “types”—it varies depending on the context (e.g., groundwater control in pits/underground workings vs. processing tailings/slurries). Sources describe anywhere from 3–4 main categories to 8–10+ specific techniques or equipment-based methods. Broadly, mining dewatering falls into two primary categories: Within these, there are numerous specific methods

In mining and dewatering operations, a flow meter for dewatering is a specialized instrument that measures the flow rate (volume per time, e.g., liters per second or cubic meters per hour) of water or slurry being pumped out of a site. This includes groundwater from pits or sumps, seepage from underground workings, reclaimed process water,

Dewatering in engineering is the process of removing water—such as groundwater, surface water, seepage, or process water—from a specific location to create dry, stable, and safe working conditions. This is a fundamental technique across several engineering disciplines, including civil, geotechnical, mining, and construction engineering. The goal is to lower the water table, drain excess moisture,

Underground mine dewatering is the critical process of removing or controlling groundwater, seepage, and process water from below-ground mining workings. When mines extend below the natural water table, water infiltrates through fractures, faults, porous rock, or roof/floor seepage—potentially causing flooding, unstable ground, equipment damage, safety hazards, and halted production. Effective dewatering keeps shafts, tunnels, stopes,

In the mining industry, chemicals used in dewatering primarily aid in solid-liquid separation processes. They help aggregate fine particles in slurries or tailings, speed up settling, improve water clarity in thickeners, reduce moisture in filter cakes, and enhance overall efficiency in tailings management, concentrate dewatering, and wastewater treatment. These chemicals are most commonly applied in

Pipeline dewatering in the mining industry refers to the process of removing water (and often associated solids or slurry) from mining pipelines, sumps, or transport systems to maintain efficient flow, prevent blockages, reduce wear, and support safe operations. It focuses on clearing accumulated water or dilute slurry from dewatering lines, tailings pipelines, process pipes, or