Industrial Wastewater Treatment
Industrial effluent changes with feedstock, production schedules, and cleaning cycles, requiring coordinated control at every process stage. VITECH integrates instrumentation, PLC/SCADA, actuators, and interlocked sequences for collection, equalization, physico-chemical treatment, biological treatment, sludge handling, and final-effluent monitoring so operators can manage process conditions and abnormal events systematically.
1. Collection & Equalization
Wastewater Collection Pumping
Controlling collection-sump pumps from level, transfer-path status, and equalization capacity, with prioritized high-level and pump-fault alarms.
Mixing & Load Equalization
Coordinating mixers and transfer pumps to limit settling, balance flow, and reduce load swings before downstream treatment.
2. Physico-Chemical Treatment
pH Neutralization & Chemical Preparation
Controlling acid or alkali dosing from pH with dose limits, flow confirmation, and tank-level interlocks while sequencing batch chemical preparation and transfer.
Coagulation, Flocculation & Flotation
Coordinating metering pumps, mixers, and DAF or equivalent separation equipment according to actual effluent flow and characteristics.
3. Biological Treatment & Aeration
Dissolved-Oxygen Control
Adjusting aeration capacity from DO measurements and treatment-zone status, with operating limits that maintain suitable biomass conditions.
Blower Sequencing
Automatically assigning duty and standby blowers, coordinating VFDs and air-distribution valves, and monitoring pressure, temperature, and equipment faults.
4. Clarification, Return Flow & Sludge Handling
Clarifiers & Return Sludge
Sequencing scraper drives, return-sludge pumps, and waste-sludge pumps while monitoring torque, blanket level, and line status for equipment protection.
Sludge Thickening & Dewatering
Coordinating sludge feed, polymer preparation, presses or centrifuges, and conveyors through interlocked start and stop sequences.
5. Effluent Monitoring & Compliance
Final-Effluent Quality Monitoring
Integrating pH, flow, turbidity, COD, or other applicable analyzers with SCADA records for values, maintenance status, and limit alarms.
Event & Deviation Management
Historizing alarms, mode changes, and equipment states to support process-event reconstruction and operating reports.
6. Sequence Control & Interlocks
Process-Area Start/Stop Sequences
Organizing area-based sequences that verify permissives and equipment feedback before advancing steps or releasing flow downstream.
Equipment-Fault Response
Transferring to standby equipment, retaining flow in equalization, or isolating a stage according to the agreed interlock matrix for each plant configuration.
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