PWT (Produced Water Treatment)

How It Works

• Multi-stage treatment approach - combines physical, chemical, and advanced separation technologies based on water characteristics.
• Oil & solids separation - removes free, dispersed, and emulsified oil along with suspended solids.
• Dissolved contaminant reduction - targets dissolved organics, gases, and heavy metals.
• System optimization - enhances performance of existing produced water and water injection systems.
• Custom process design - technology selection based on well type, contamination profile, and reuse objective.

Diva Envitec delivers end-to-end solutions including process study, site survey, pilot testing, technology selection, system design, and implementation support. Field testing is conducted using pilot equipment such as hydrocyclones, flotation units, and analyzers to determine optimal treatment strategy. Final system design is based on collaborative evaluation and performance targets.

Technologies Employed

• Corrugated Plate Interceptors (CPI)
• Deoiling Hydrocyclones
• Induced Gas Flotation (IGF) - gas blanketed
• Nutshell Filters / DISORB™ media
• Solids removal systems (desanders, dual media filters)
• Deaerators and oxygen scavenging systems
• Adsorption media (including selective lithium recovery)

Contaminants Addressed

• Oil and grease (free, dispersed, dissolved)
• Suspended solids
• High TDS
• Dissolved and volatile organics
• Heavy metals (As, Cd, Cr, Cu, Fe, Pb, Mn, Hg, Ni, Zn)
• Radionuclides
• Dissolved gases and bacteria
• Production chemicals (biocides, inhibitors, demulsifiers)

Key Features

• Handles complex and variable produced water compositions
• Modular and scalable system design
• Integration with existing PWT and water injection systems
• Supports regulatory compliance and water reuse goals
• Enables debottlenecking and performance upgrades
• Access to pilot testing and on-site validation
• Backed by global expertise and proven technologies

Applications

Oil & Gas Operations

• Produced water treatment
• Water injection system optimization
• Enhanced oil recovery (EOR) support

Resource Recovery

• Lithium extraction from produced water
• Oil recovery and reuse

Process & System Optimization

• Debottlenecking of existing PWT systems
• Upgradation to meet new environmental norms

Water Reuse & Sustainability

• Industrial reuse of treated water
• Reduction of freshwater intake
• Safe discharge compliance

Note

PWT™ integrates multiple proven technologies into a unified treatment approach, enabling efficient handling of complex produced water streams while maximizing recovery and minimizing environmental impact.