SENTRADO
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Wastewater Treatment Automation Solutions

Comprehensive wastewater treatment automation from influent to effluent. Full-process control for municipal sewage and industrial effluent — reliable, energy-efficient, and compliant.

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Expert in Wastewater Automation

SENTRADO brings extensive experience in both industrial wastewater and municipal sewage treatment. With 500+ wastewater projects delivered, we understand the unique challenges of maintaining discharge compliance, minimizing energy costs, and ensuring reliable 24/7 operation.

Our solutions cover municipal sewage, industrial wastewater (chemical, pharmaceutical, food & beverage, textile dyeing), reclaimed water reuse, and sludge treatment. Core capabilities include PLC+SCADA integrated control, remote monitoring, and energy optimization.

500+
WW Projects
25+
Years Experience
99.5%
Compliance Rate

Wastewater Coverage

  • Municipal sewage treatment plants
  • Chemical industry wastewater
  • Pharmaceutical wastewater treatment
  • Food & beverage wastewater
  • Textile dyeing wastewater
  • Reclaimed water & water reuse systems

Core Solutions

End-to-end automation solutions covering every stage of the wastewater treatment process.

Influent Pretreatment Control

Automated control of screening, grit removal, and equalization tanks to ensure consistent influent flow and load.

Mechanical screening automation
Grit chamber control
Equalization tank level management
Influent flow measurement

Biological Treatment Control

Advanced process control for A²/O, SBR, and MBR systems with online DO/MLSS monitoring and automatic adjustment.

A²/O process automation
SBR cycle control
DO/MLSS online monitoring
Automatic aeration adjustment

Tertiary Treatment & Disinfection

Automated filtration, UV disinfection, and chemical dosing systems for polished effluent quality.

Deep bed filtration control
UV disinfection monitoring
Chemical dosing automation
Effluent quality verification

Sludge Treatment Control

Complete automation of sludge thickening, dewatering, and drying systems for efficient solids handling.

Sludge thickening automation
Belt/centrifuge dewatering control
Polymer dosing optimization
Sludge drying system control

SCADA Remote Monitoring

Multi-site centralized monitoring with data visualization, alarm management, and remote control capabilities.

Multi-site centralized monitoring
Real-time data visualization
Alarm management & notification
Mobile & web access

Energy Optimization System

Intelligent aeration optimization, pump VFD energy savings, and smart scheduling for maximum efficiency.

Aeration optimization control
Pump VFD energy savings
Intelligent scheduling
Energy consumption analytics

Technical Specifications

Typical system configuration for wastewater treatment automation projects.

ParameterSpecification
PLC PlatformSiemens S7-1500 / S7-1200
SCADAWinCC / iFIX
Communication ProtocolsPROFINET, Modbus TCP, OPC UA
Control Points500 - 10,000 I/O
Power SupplyRedundant power supply system
Protection RatingIP54 / IP65

Project Cases

Proven track record in wastewater treatment automation across diverse industries.

Chemical Industrial Park

Chemical Park WWTP

Municipal-level chemical park wastewater treatment plant with 50,000 m³/day capacity. Full-process automation using S7-1500 + WinCC, achieving 99.5% effluent compliance rate.

50,000 m³/day S7-1500 + WinCC 99.5% Compliance
Pharmaceutical Wastewater

Pharmaceutical WWTP

Pharmaceutical factory wastewater treatment using A²/O process with PLC-controlled automatic chemical dosing. Achieved COD removal rate exceeding 95% with stable effluent quality.

A²/O Process Auto Dosing COD Removal >95%
Municipal Upgrade

Municipal WWTP Upgrade

Upgraded from secondary treatment to Class 1A discharge standard. Added tertiary treatment and automatic chemical dosing system with seamless integration to existing infrastructure.

Class 1A Standard Retrofit Tertiary Treatment

Why Choose SENTRADO for Wastewater Treatment

Trusted by municipal utilities and industrial facilities for reliable, compliant wastewater automation.

500+ WW Projects

Extensive experience across chemical, pharmaceutical, food, textile, and municipal wastewater sectors.

Compliance Guaranteed

Automated effluent monitoring ensures continuous compliance with discharge standards. 99.5%+ compliance rate.

Remote Monitoring

24/7 remote SCADA access with web/mobile dashboards, alarm notifications, and multi-site management.

Energy Savings

30%+ energy reduction through intelligent aeration optimization, VFD control, and smart scheduling.

Frequently Asked Questions

Common questions about our wastewater treatment automation solutions.

What wastewater treatment processes do you support?
SENTRADO supports all major wastewater treatment processes including conventional activated sludge, A²/O (anaerobic-anoxic-oxic), SBR (Sequencing Batch Reactor), MBR (Membrane Bioreactor), MBBR, and oxidation ditch. We also provide automation for tertiary treatment including filtration, UV disinfection, and advanced chemical dosing systems.
Can you retrofit automation to existing wastewater plants?
Yes, we specialize in both greenfield projects and retrofitting existing wastewater treatment plants. Our retrofit solutions include upgrading legacy PLC systems, adding SCADA monitoring, installing VFDs on existing blowers and pumps, integrating new online instruments, and implementing energy optimization — all with minimal disruption to ongoing operations.
How does the remote monitoring system work?
Our SCADA-based remote monitoring system provides web and mobile access to all plant data in real time. Features include 24/7 alarm management with SMS/email notifications, dynamic process visualization, historical trend analysis, remote equipment control, and multi-site dashboard management. Data is securely transmitted via industrial protocols (OPC UA, MQTT) and stored on redundant servers.
How do you ensure effluent quality compliance?
Our automation systems integrate inline water quality analyzers (COD, BOD, ammonia, total phosphorus, pH, DO, turbidity) with closed-loop process control. The system automatically adjusts aeration, chemical dosing, and sludge return rates to maintain effluent within regulatory limits. All data is logged for compliance reporting with full audit trail capability.
What is the typical project delivery timeline?
Project timelines vary by scope: small retrofits typically take 4-8 weeks, medium-scale projects 2-4 months, and large greenfield plants 6-12 months. Our standardized engineering approach, pre-tested PLC program libraries, and modular SCADA templates help accelerate delivery while maintaining quality.

Discuss Your Wastewater Project

Whether you're building a new wastewater treatment facility or upgrading existing systems, our engineering team is ready to help. Get a customized solution proposal for your project.

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