Seasonal flows and composition swings
Sugar units see extreme seasonal variation. Cleaner vapor condensates can often be recovered for boiler or cooling makeup, while floor washings and molasses handling produce high color, COD, and TDS peaks.
Segregating cleaner condensate headers from contaminated drains reduces the volume requiring aggressive biological or membrane treatment. That single design choice frequently determines whether brine minimization is economically viable.
Where RO or tertiary recovery is used, reject becomes the long-term bottleneck. Non-thermal evaporation can complement thermal options when steam export is limited during the off-season.
Size equalization for realistic crush-season diurnal peaks—not average flow sheets. Undersized balancing tanks pass shock loads to biology and drive permit excursions.
If crystallization or salt recovery is on the roadmap, account for ash, mixed salts, and landfill acceptance early. Phased ZLD—polishing first, concentration second—often matches mill cash flows better than a single mega-train.
Need a mill water balance review? Contact Asiatic Engineers: +91 98240 54002