Skid-Mounted MVR Pilot Plant

The skid-mounted MVR pilot plant is a unique offering from Spans: a compact, transportable Mechanical Vapour Recompression unit that we bring to your site to run trials on your actual wastewater. Instead of designing a full-scale Zero Liquid Discharge plant from lab data and assumptions, you get to see how your real effluent behaves in a working MVR evaporator first — and use that evidence to design the full plant with confidence.

Every effluent is different. Fouling and scaling tendency, boiling point elevation, foaming, achievable concentration, and distillate quality all depend on the specific chemistry of your stream, and they are exactly the variables that make or break a full-scale ZLD investment. Running your effluent through the pilot surfaces these behaviours early, so the full-scale design can be right-sized and the metallurgy, anti-scale strategy, and configuration chosen on real evidence rather than on conservative guesses.

During a trial the pilot draws your wastewater, evaporates it in a compact MVR loop, and samples both outputs: the distillate, to confirm it meets reuse quality, and the concentrate, to confirm how far the stream can be concentrated before crystallisation. The instrumentation logs energy consumption, evaporation rate, and concentration achieved, producing a defensible trial report that becomes the design basis and techno-commercial case for the full plant.

This de-risking step protects your investment. It reduces the chance of an oversized or undersized plant, confirms the reuse water quality your process can count on, and gives management a data-backed basis for approving capital. For any significant ZLD project, an on-site pilot is the most cost-effective way to buy certainty before committing to full-scale spend.