EngiMetric
Brine & Concentrate • Treatment process

Zero Liquid Discharge ZLD

Concentrating a brine to a dry or near-dry residue. Catalogued for orientation; EngiMetric has no ZLD engine and states no thermal or crystalliser figures.

Engineering maturity: Established Commercial status: Emerging

Overview

Concentrating a brine to a dry or near-dry residue. Catalogued for orientation; EngiMetric has no ZLD engine and states no thermal or crystalliser figures.

How it works

Separation mechanism and feed window. Aimed at the most difficult brines, including RO concentrate.

What the process produces. Recovered water plus a solid salt residue; nothing liquid is discharged.

Energy. Thermal and very high. ZLD is energy-intensive by construction.

Process sequence

Where this technology normally sits in a treatment train. The steps either side of it are documented in the Library as separate entries.

  1. Brine concentration
  2. Evaporator
  3. Crystalliser
  4. Salt harvest or landfill

Typical applications

  • Water-scarce regions
  • Coal and power plant flue-gas desulphurisation waste
  • Semiconductor and high-purity waste streams

Main equipment

  • Mechanical vapour compressor
  • Evaporator crystalliser
  • Decanter and solids handling
  • Salt drying and packaging

Key design parameters

The parameters an engineer actually sets, and why each one drives the design. EngiMetric does not assume any of them.

Parameter Why it matters
Concentrator approach Thermal versus RO concentration changes the whole mass balance.
Solubility limits Define the final recovery before solids appear.
Residue handling Often the true cost and permitting constraint.

Advantages

  • No liquid discharge.
  • Salt can be recovered where the brine is clean enough.

Limitations

  • Very high energy demand.
  • High capital cost.
  • Residue classification and disposal remain difficult.

Engineering considerations

  • EngiMetric does not model crystallisers, solids yield or ZLD energy. Nothing quantitative is claimed here.
  • What the platform does provide is the brine the ZLD train would receive: flow and derived TDS.

Status and EngiMetric support

Industry maturity and commercial status describe the technology itself. EngiMetric support and quantitative modeling describe what this platform does with it — and those two are read from the engineering registry at build time, so they cannot drift from the code.

Engineering maturity
Established How established the technology is in the industry. Not an EngiMetric claim.
Commercial status
Emerging Where the technology sits in the market. Not an EngiMetric claim.
EngiMetric support
Information only No execution-registry entry exists, so no support is claimed.
Design engine
No Whether the Plant Designer can carry this as a configured process step.
Quantitative modeling
Not quantitatively modeled No engine exists, so EngiMetric states no figure for this technology.

Not quantitatively modeled. EngiMetric publishes no energy, recovery, flux, capacity or cost figure for this technology. Every quantitative statement on this page comes from your own inputs or from an external source, never from a calculation on this platform.

Because no EngiMetric engine exists for Zero Liquid Discharge, this page deliberately contains no calculated figures. Any energy, recovery, flux or capacity value you need must come from a supplier, a published plant or your own analysis.

Related tools

Every tool below exists and is live. EngiMetric does not duplicate a formula here — the calculation lives in the tool, and this page links to it.