Operations & Maintenance (O&M) Services
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Operations & Maintenance (O&M) Services
Operations & Maintenance (O&M) Services for Water & Wastewater Plants
HECS delivers end-to-end Operations & Maintenance (O&M) services that ensure regulatory compliance, operational reliability, and lifecycle performance for water and wastewater infrastructure. With over 28 years of experience, a workforce of 2,000+ professionals, and 60+ active sites, HECS is a leading independent O&M partner for municipal, industrial, and infrastructure assets globally.
We manage STPs, ETPs, WTPs, RO, ZLD, and Industrial Utility Systems across India, the Middle East, and Southeast Asia.
Why Leading Clients Choose HECS
- Proven Scale & Expertise: 2,000+ skilled engineers, chemists, and operators managing major assets in Refineries, Power Plants, SEZs, and Municipal Utilities.
- Assured Compliance: 100% adherence to CPCB, SPCB, and MOEF norms through SOP-driven operations and real-time monitoring (BOD, COD, TSS, pH, etc.).
- Cost & Efficiency: Reduced Opex via power & water conservation strategies, chemical consumption optimisation, and predictive maintenance.
- Safety-First Culture: A certified Zero-Accident HSE framework with regular audits, LOTO training, and emergency response programs.
- OEM-Agnostic: Seamless support for all OEM configurations and process technologies, whether HECS-built or third-party.
Complete O&M Services for Reliable Plant Operations
We provide turnkey management covering every aspect of plant performance:
1. Complete Plant Operations
- Routine operations, startups, shutdowns, and emergency procedures.
- Precise control of pumps, blowers, valves, and chemical dosing.
2. Process & Quality Monitoring
- Real-time lab monitoring of critical parameters (Ammonia, Fluoride, Chromium, etc.).
- Integrated SCADA & IoT systems for remote diagnostics and predictive alerts.
3. Maintenance & Manpower
- Predictive & preventive maintenance programs to minimize downtime.
- Deployment of certified Operators, Technicians, and HSE Officers, supported by regular expert training visits.
4. Supply Chain Management
- Reliable supply of membranes (RO/UF), resins, mechanical spares, and treatment chemicals.
- Flexible O&M Contract Models
HECS offers tailored engagement models to meet your commercial and technical goals:
- Comprehensive O&M: Full plant responsibility, including chemicals, spares, and labor.
- Non-Comprehensive O&M: Operations management or limited-scope contracts.
- Performance-Based: Cost linked to output (₹/m³ treated) and quality standards.
- Total Water Management: End-to-end asset management, audits, and conservation.
- Multi-Utility O&M: Integrated services for power and water systems.
- Annual Maintenance Contracts (AMC): Reliability-focused breakdown and maintenance support.
Revamp, Retrofit & Technology Upgradation
HECS specializes in rehabilitating aging assets and upgrading technology to meet newer ZLD and capacity norms
Our Revamp Solutions Include:
- Capacity Enhancement: Handling increased hydraulic and organic loads.
- Process Upgrades: MBBR, MBR, SBR, and Tertiary Treatment integration.
- Advanced Filtration: Ultra Filtration (UF) for colloidal silica removal and Disc Tube systems.
- High-Purity Water: Electro Deionization (EDI) for DM water polishing.
- ZLD Solutions: Evaporators, ATFs, and reject recycling systems.
- Component Restoration: Clarifier revamping, Iron Removal Units (IRU), and automation upgrades.
Treatment Plants & Systems We Operate
1.Wastewater & Reuse:
- STP, ETP, Tertiary Treatment, ZLD Plants, Evaporators & Sullage Treatment.
2. Water Treatment & Purification:
- WTP, RO/UF/Nano Filtration, DM Water Plants, Softeners, Iron Removal Units.
3. Industrial Utilities:
- Cooling Towers, Chillers, Pumping Stations, Gas Scrubbers, Dust Collectors.
Industries We Serve
- Infrastructure: Municipal Utilities, Real Estate, Townships, Smart Cities, Airports, Ports.
- Heavy Industry: Refineries & Petrochemicals, Power & Steel, Industrial Parks & SEZs.
- Process Manufacturing: Pharma & Chemicals, Textiles & Tanneries, Food & Beverage & Dairy.
- Institutions: Hospitality, Campuses, and High Purity Application Industries.
Our 6-Step Deployment Workflow
We ensure predictable operations from day one through a structured process:
- Site Audit & Technical Assessment
- Baseline Performance Report
- SOP Deployment & Manpower Mobilization
- Preventive Maintenance & Spare Planning
- SCADA/IoT Monitoring & Dashboards
- Monthly Performance Review & Optimization
Ready to Optimize Your Plant?
Whether you are planning a new project or seeking to improve the efficiency and compliance of an existing facility, HECS experts are ready to assist.
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