Salt Refinery, Soda Ash, Chlor-Alkali & Industrial Brine Chemical Plant ERP: Solar Pond Baumé Density Telemetry, Evaporator Steam Mass-Balance & KRA/KEBS Iodization QC

Coastal solar salt works and vacuum refineries (along the Malindi–Gongoni–Magarini belt), Lake Magadi soda-ash (trona) calcination operations, and chlor-alkali plants (producing caustic soda, hydrochloric acid, and sodium hypochlorite) combine large-scale hydrological harvesting with high-speed chemical refining and packaging. Generic inventory software cannot model a salt or soda-ash operation because raw brine progresses through concentrator and crystallizer ponds measured by Baumé specific gravity (°Bé), raw salt stockpiles experience rainfall dissolution and washing losses in the hydrocyclone plant, and edible table salt must strictly maintain KEBS / Ministry of Health Potassium Iodate (KIO3) fortification levels (30–50 ppm iodine) on every shift.

At devManue, we build specialized Salt Refinery, Soda Ash & Brine Chemical Manufacturing ERP platforms that unify solar pond Baumé progression logs, washery and fluid-bed dryer mass balances, KIO3 iodization titration QC gates, automated sachet/bagging line OEE, and bulk ship/rail/truck weighbridge logistics.

1. Controlling Brine Crystallization, Washery Losses & Fortification Compliance

• Solar Pond Baumé (°Bé) Progression & Crust Harvest Forecasting: Tracks seawater or lake brine pumping across condenser series (3.5°Bé → 15°Bé → 25.5°Bé saturation) into crystallizer pans (25.5°Bé – 29°Bé), logging brine depth, evaporation rates, calcium sulfate (gypsum) precipitation, and bittern drainage before mechanical harvesting.
• Hydrocyclone Washery, Centrifuge & Fluid-Bed Dryer Mass Balance: Reconciles crude harvested salt tonnage tipped at the washery hopper against insoluble mud/insolubles washed out, centrifuge moisture (~3.5%), and dried refined salt (< 0.2% moisture) entering the packaging silos.
• Mandatory KIO3 Iodization Dosing & Hourly Titration Lock: Tracks Potassium Iodate consumption per ton of refined salt and logs hourly laboratory titration results (mg/kg ppm Iodine), automatically quarantining any packaging pallet whose shift titration falls outside the statutory KEBS KS EAS 35 range.

2. Washery-to-Dryer Mass Balance & KIO3 Iodization QC Verification Engine

Our refinery process engine reconciles raw crude salt input against washed/dried refined output, verifies laminated packaging film roll yield, and enforces statutory iodine ppm limits before warehouse release:

from decimal import Decimal, ROUND_HALF_UP

class SaltRefineryProcessEngine:
    """
    Computes crude-to-refined salt washery/dryer mass balance, KIO3 dosing
    efficiency, and KEBS KS EAS 35 iodine fortification compliance.
    """
    @staticmethod
    def evaluate_refinery_shift_run(
        crude_salt_tipped_tons: Decimal,
        crude_moisture_and_insolubles_pct: Decimal,
        refined_dry_salt_packed_tons: Decimal,
        kio3_consumed_kg: Decimal,
        lab_titration_iodine_ppm: Decimal,
        min_statutory_ppm: Decimal = Decimal("30.0"),
        max_statutory_ppm: Decimal = Decimal("50.0"),
    ) -> dict:
        theoretical_dry_nacl_tons = (
            crude_salt_tipped_tons * ((Decimal("100") - crude_moisture_and_insolubles_pct) / Decimal("100"))
        ).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
        washery_recovery_yield_pct = (
            (refined_dry_salt_packed_tons / theoretical_dry_nacl_tons) * Decimal("100")
            if theoretical_dry_nacl_tons > 0 else Decimal("0.00")
        ).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)

        # Potassium Iodate (KIO3) contains ~59.3% elemental iodine
        theoretical_iodine_ppm = (
            (kio3_consumed_kg * Decimal("0.593") * Decimal("1000")) / refined_dry_salt_packed_tons
            if refined_dry_salt_packed_tons > 0 else Decimal("0.00")
        ).quantize(Decimal("0.1"), rounding=ROUND_HALF_UP)

        kebs_compliant = min_statutory_ppm <= lab_titration_iodine_ppm <= max_statutory_ppm
        return {
            "theoretical_dry_salt_tons": theoretical_dry_nacl_tons,
            "washery_and_dryer_recovery_pct": washery_recovery_yield_pct,
            "dosed_theoretical_iodine_ppm": theoretical_iodine_ppm,
            "lab_verified_iodine_ppm": lab_titration_iodine_ppm,
            "kebs_qa_release_approved": kebs_compliant,
        }

3. Industrial Grade Salt, Water-Softening Tablets & Upcountry Depot Freight Matrix

Beyond consumer sachets (200g, 500g, 1kg, 2kg) and wholesale balers, the ERP manages coarse industrial salt for tanneries, textile dyeing, and animal-lick block presses, while optimizing backhaul trucking rates from coastal refineries to Nairobi, Nakuru, Eldoret, Kisumu, and Uganda/Rwanda depots.