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Waste Management & Sludge Extraction

EarthWize delivers complete waste management solutions — from sludge extraction in ponds and lagoons to advanced conditioning technologies that process and recover value from hydrocarbon waste streams.

Overview

Complete Sludge & Waste Solutions

EarthWize's waste management capabilities extend far beyond conventional removal services. We operate a fully integrated system of sludge extraction, conditioning, and processing technologies that allow clients to manage hydrocarbon waste without interrupting production — and in many cases, to recover valuable product from what would otherwise be disposed waste.

Our systems are deployed across petroleum storage facilities, refineries, harbours, mines, and industrial lagoons throughout South Africa and Mozambique.

  • No need to empty ponds or interrupt production
  • Submersible robotic and floating dredger systems
  • Applied conditioning — screening, heating, coagulation
  • Grease trap management and wastewater treatment
  • Full hazardous waste compliance and disposal
Sludge Extraction Systems
Extraction Equipment

Sludge Extraction Systems

Two purpose-built systems for sludge extraction in any environment — without halting operations.

Submersible Robot
Submersible Robot
Unlimited Depth Operation

Our submersible robotic system is designed for fully submerged sludge extraction in tanks, ponds, and lagoons of any depth. Remotely operated, it navigates underwater environments to extract high-viscosity sludge without requiring the pond or tank to be emptied first.

Flow Rate35 m³/h
Depth LimitNo limit
OperationFully remote
Entry RequiredNone
Floating Dredger
Floating Dredger
Surface & Near-Surface Extraction

The floating dredger system handles high-volume surface and near-surface sludge extraction, deployed directly onto open ponds and lagoons. Its floating design enables continuous operation across the full surface area, achieving exceptional throughput rates for large-scale remediation projects.

Flow Rate50 m³/h
Max Depth3.5 m
OperationSurface deployed
Entry RequiredNone
Key Advantage
Both systems are designed to operate without emptying ponds or interrupting production — allowing clients to maintain operational continuity while remediation work proceeds.
Applied Conditioning Technologies
Treatment & Processing

Applied Conditioning Technologies

Once extracted, hydrocarbon waste material undergoes a structured conditioning process at EarthWize facilities. Our applied conditioning technologies separate, treat, and prepare waste streams for recovery, recycling, or compliant disposal — maximising the value recovered from every project.

The conditioning process follows a proven three-stage approach tailored to the specific waste characteristics at each site.

Stage 1 — Screening & Sieving

Initial separation of solid debris, scale, and coarse material from the liquid hydrocarbon fraction, preparing the stream for further treatment.

Stage 2 — Heating via Steam Exchangers

Congealed and high-viscosity hydrocarbon fractions are heated using steam heat exchangers to reduce viscosity and enable phase separation of oil, water, and solids.

Stage 3 — Coagulation & Flocculation

Chemical conditioning to aggregate fine suspended particles, enabling clarification of the water fraction and preparation of the solids for compliant disposal or further processing.

Grease Trap & Wastewater

Additional Waste Management Services

Beyond large-scale sludge extraction, EarthWize provides a full range of waste stream management services for industrial clients, municipalities, and the shipping sector.

  • Grease trap management and emptying
  • Industrial wastewater treatment and disposal
  • Bilge water and slop water management
  • Hazardous liquid waste collection and disposal
  • On-site waste water separation and treatment
  • Regulatory-compliant waste transfer documentation
Waste Management Operations

Need sludge extraction or waste management?

Our team can assess your site and recommend the right approach.

Contact Us