Zero Liquid Discharge (ZLD) Water Treatment

EXPERTISE IN ZERO LIQUID DISCHARGE SYSTEMS ACROSS MAJOR INDUSTRIES

Water scarcity and environmental concerns are critical challenges for Australian and New Zealand industries. In response to rising regulatory demands and sustainability goals, businesses are adopting Zero Liquid Discharge water treatment systems to reduce wastewater output and maximise water reuse. As a global leader in zero liquid discharge systems, Veolia Water Technologies provides advanced solutions for industries seeking to reduce their environmental footprint. Our expertise in zero liquid discharge wastewater treatment spans multiple sectors, including:

  • Power Generation (fossil, nuclear, and renewables)
  • Oil & Gas (conventional, unconventional, and refining)
  • Chemical Processing & Manufacturing
  • Mining & Mineral Processing
  • SAGD (Steam-Assisted Gravity Drainage)
  • Industrial & Municipal Landfills

With decades of innovation in Zero Liquid Discharge technology, including HPD® Evaporation and Crystallisation, Veolia delivers tailored zero liquid discharge plant solutions for clients across Australia and New Zealand. Our turnkey approach ensures seamless project execution, while our long-term operation and maintenance services support ongoing efficiency and compliance.

 

TAILORED ZERO LIQUID DISCHARGE SOLUTIONS FOR COMPLEX WASTEWATER STREAMS

Each industrial wastewater stream presents unique challenges, requiring a customised approach to Zero Liquid Discharge water treatment. Veolia's expertise includes designing and optimising treatment processes for:

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Membrane System Reject (NF, MF, UF, RO)

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Cooling Tower Blowdown

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Flue Gas Desulfurisation (FGD) Blowdown / Purge

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Produced Water (Conventional, Fracking, SAGD)

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Mine Drainage

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Refinery, Gas-to-Liquid (GTL), and Coal-to-Chemical (CTX) Wastewaters

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Scrubber Blowdown

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Demineralisation Waste

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Landfill Leachate

EVAPORATION & CRYSTALLISATION TECHNOLOGIES

Veolia offers industry-leading evaporation and crystallisation solutions to help businesses meet Zero Liquid Discharge system requirements while optimising energy use and cost efficiency. Our ZLD technology includes:

  • Falling Film Evaporators: Also known as brine concentrators, these systems enable efficient heat transfer and water recovery of over 90%. The recovered water is suitable for reuse in cooling towers, scrubbers, and other industrial processes.
  • Crystallisers: Designed for continuous crystallisation of dissolved salts, these systems recover valuable by-products and provide a true zero liquid discharge plant when combined with solids dewatering.

Veolia Water Technologies helps Australian and New Zealand industries achieve their water sustainability goals with advanced ZLD wastewater treatment solutions, ensuring regulatory compliance and long-term operational success.

 

Frequently Asked Questions (FAQ) on ZLD Technology

Can ZLD be customised for different industries and wastewater compositions?

Yes, ZLD technology can be tailored to meet the specific needs of various industries, including power generation, mining, oil & gas, and chemical processing. Each ZLD system is designed based on wastewater composition, flow rates, and regulatory requirements, ensuring optimal performance and compliance.

 

How can industries monitor the performance of their ZLD systems?

Industries can monitor ZLD wastewater treatment performance through real-time sensors, automated controls, and digital monitoring systems. These technologies track key parameters such as water recovery rates, energy consumption, and contaminant levels to ensure efficiency and compliance. What are the main considerations for selecting the appropriate ZLD technology for our specific industry and facility?

 

Key factors in choosing the right ZLD water treatment solution include:

  • Wastewater characteristics (e.g., concentration of dissolved solids)
  • Water recovery requirements
  • Energy efficiency and operational costs
  • Space availability for installation
  • Compliance with local environmental regulations
     

Can ZLD technology be integrated with existing wastewater treatment infrastructure, or does it require a standalone system?

ZLD plant solutions can be designed as standalone systems or integrated with existing wastewater treatment infrastructure. Integration can enhance water recovery, reduce operational costs, and improve overall system efficiency.

Can ZLD technology be implemented for small operations?

Yes, ZLD technology is scalable and can be adapted for small-scale operations as well as large industrial plants. Compact zero liquid discharge system designs are available for facilities with lower wastewater volumes while maintaining high water recovery rates.

Can ZLD technology treat wastewater with high concentrations of dissolved solids such as seawater?

Yes, ZLD wastewater treatment can effectively handle wastewater with high salinity, including seawater and brine streams. Advanced evaporation and crystallisation technologies separate and recover clean water while managing high concentrations of dissolved solids.

Can ZLD technology filter contaminants like microplastics?

Yes, ZLD water treatment systems can incorporate filtration technologies such as ultrafiltration (UF) and reverse osmosis (RO) to remove microplastics before the wastewater enters the evaporation and crystallisation stages. This ensures the final recovered water is free from such contaminants.

Can ZLD technology be applied to different climatic conditions?

Yes, ZLD technology is designed to operate efficiently in various climatic conditions, from arid environments to high-humidity regions. System configurations can be adapted to account for temperature variations, ensuring reliable performance across different geographic locations.