What We Do
From raw sewage to clean water, energy recovery, and digital optimization — discover the full WiTech process.
Explore Our Sustainable ProcessModern Wastewater Facilities — Overview
Wastewater facilities collect, convey, treat, and return water to the environment or reuse it. They manage solids, recover resources — water, biogas, heat, and energy — and combine mechanical, biological, and digital layers for efficiency, resilience, and sustainability.
Step-by-Step Process & WiTech Involvement
Step 1 — Collection & Conveyance
What happens: Sewage and industrial effluent collected via sewers or pumps.
Key equipment: Sewers, lift stations, coarse screens.
WiTech role: Flow profiling, retrofitting smart lift stations (VFDs + sensors) to reduce power and prevent overflows.
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Step 2 — Preliminary Treatment
What happens: Large debris and grit removed to protect downstream equipment.
WiTech role: Specify robust screens, install blockage sensors, optimize grit removal.
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Step 3 — Primary Treatment
What happens: Solids settle in primary clarifiers; oil and scum removed.
WiTech role: Hydraulic modeling, automated desludging control, energy reduction.
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Step 4 — Secondary Treatment
What happens: Biological processes remove dissolved organics (BOD/COD).
WiTech role: Optimize aeration, implement compact systems (MBR, MBBR) as needed.
Step 5 — Tertiary Treatment / Polishing
What happens: Remove nutrients, pathogens, micropollutants. Prepare for reuse or high-quality discharge.
WiTech role: Nutrient removal design, membrane integration, sensor-driven chemical dosing.
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Step 6 — Disinfection & Reuse / Discharge
What happens: UV or chlorination to kill pathogens; water reused or discharged.
WiTech role: Validate reuse quality, design storage & distribution, advise permitting.
Step 7 — Sludge Handling & Biosolids
What happens: Sludge thickened, dewatered, treated anaerobically; biosolids & biogas produced.
WiTech role: Design digestion + dewatering, size CHP/biogas, recommend reuse/disposal.
Ongoing — Monitoring & Digital Control
What happens: Continuous monitoring of flows, quality, equipment, and energy via SCADA + sensors + analytics.
WiTech role: Provide sensors, digital twin/analytics, predictive maintenance, subscription monitoring.