Comprehensive Instrumentation Solutions for the Water & Wastewater Industry
High-accuracy, corrosion-resistant instrumentation ensures stable process control across every stage of water and wastewater treatment — from raw water intake to final discharge.Designed for long-term reliability, modular integration, and compliance with global standards, these solutions maintain process integrity, safety, and efficiency under the most demanding environmental conditions.
Addressing the Core Challenges of Water & Wastewater Process Control
Water and wastewater treatment environments present diverse challenges, including fluctuating flow rates, high humidity, chemical corrosion, and sludge accumulation. Leierda’s instrumentation delivers accuracy, longevity, and intelligent integration for continuous process reliability.
Corrosion and Chemical Exposure
Aggressive chemicals, saline water, and variable pH corrode conventional sensors.Leierda instruments feature 316L stainless steel or PTFE-coated wetted parts, IP68 enclosures, and Ex-proof options, ensuring long-term stability in corrosive environments.
Sludge and Foam Interference
Level detection and pressure measurement in sludge or aeration tanks often face clogging and signal drift.Non-contact radar and diaphragm-sealed transmitters maintain reliable measurements, supported by self-cleaning and signal filtering functions.
Data Integration and Network Compatibility
Modern transmitters supporting HART, Modbus, and RS-485 communication enable seamless SCADA and IoT integration, allowing centralized monitoring, diagnostics, and predictive maintenance.
Harsh Outdoor and Submersible Conditions
Inflow, outflow, and lift stations demand durable sensors resistant to flooding and vibration.Rugged housings with IP68 protection and remote-mounted electronics ensure stable operation and reduced maintenance cycles.
Instrumentation Across Water & Wastewater Applications
Specialized instrumentation supports accurate monitoring and efficient operation across all key sectors — municipal, industrial, and environmental.
Municipal Water Treatment
Flow and pressure transmitters monitor network distribution, ensuring stable supply and early leak detection.Corrosion-resistant sensors maintain performance under continuous chlorination and humid conditions.
Municipal Wastewater Treatment
Level and pH transmitters stabilize aeration and sedimentation processes, while radar sensors eliminate signal loss from foam and sludge.
Industrial Wastewater Treatment
High-temperature and corrosion-resistant transmitters and analyzers monitor complex effluents, supporting compliance with environmental discharge standards.
Desalination & RO Systems
Pressure transmitters, conductivity analyzers, and flow meters monitor high-pressure feed lines and membrane performance, ensuring energy-efficient desalination control.
Groundwater & Surface Water
Submersible pressure sensors and multiparameter analyzers measure level, turbidity, and conductivity for long-term field monitoring.
Sludge Treatment & Biogas
Diaphragm-sealed pressure and temperature sensors enable precise control in digesters and dewatering systems exposed to corrosive gases.
Irrigation & Water Distribution
Flow and pressure transmitters maintain distribution efficiency and support smart irrigation automation through Modbus or IoT networks.
Process Flow and Instrumentation Layout in Water & Wastewater
Water and wastewater treatment facilities operate through continuous stages of filtration, biological processing, and disinfection.Instrumentation ensures precise measurement of flow, pressure, level, temperature, and analytical parameters — maintaining stable operation, safety, and full regulatory compliance throughout the treatment cycle.
Complete Process Instrumentation for Water & Wastewater
Pressure Gauges
Leierda pressure gauges (mechanical pressure measuring instruments) for gauge, absolute, and differential pressure have been proven millions of times across industrial and process applications.
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Pressure Gauges
Leierda pressure gauges (mechanical pressure measuring instruments) for gauge, absolute, and differential pressure have been proven millions of times across industrial and process applications.
View Product >
Pressure Gauges
Leierda pressure gauges (mechanical pressure measuring instruments) for gauge, absolute, and differential pressure have been proven millions of times across industrial and process applications.
View Product >
Application Engineering
Designed for demanding conditions with high pressure, temperature, and corrosion resistance, Leierda instruments provide customizable pressure, flow, level, and analytical solutions.
System Integration
Fully compatible with DCS, PLC, and SCADA platforms, instruments provide easy I/O setup, validation documentation, and reliable signal performance for chemical, water, and energy systems.
Measurement Integrity
Each unit undergoes multi-stage calibration and stress testing under ISO and CE/Ex standards to ensure long-term accuracy and operational stability in continuous process conditions.
Global Partnership
Engineering teams cooperate with EPCs, integrators, and end users worldwide, offering technical support, training, and lifecycle services to secure process safety and uptime.
Real-World Instrumentation Cases in Water & Wastewater
Leierda instruments have been deployed in diverse global projects, proving their reliability and adaptability across municipal and industrial applications
Municipal Wastewater Aeration Control
Challenge:
Ultrasonic and hydrostatic level transmitters often failed in aeration tanks due to foam and sludge buildup, causing unstable blower control and frequent maintenance.
Solution:
An 80 GHz high-frequency radar level transmitter with narrow beam focusing, non-contact operation, and echo filtering eliminated foam interference.
Remote verification through the HART diagnostic interface allowed integration with the SCADA system.
Result:
Signal reliability improved by 96%, maintenance reduced from monthly to semiannual, and aeration efficiency increased.
Desalination RO Pressure Monitoring
Challenge:
Conventional transmitters drifted under 60 bar pressure and saline exposure, causing frequent replacements.
Solution:
A stainless-steel pressure transmitter with a ceramic capacitive diaphragm and IP68 protection provided ±0.1% FS accuracy, chemical resistance, and remote calibration via HART.
Result:
Measurement stability maintained within ±0.1% FS, downtime eliminated, and calibration intervals extended by 40%.
Industrial Wastewater pH and Flow Management
Challenge:
Variable effluent composition caused pH fluctuations and unstable flow control due to scaling and solids.
Solution:
A smart pH and conductivity analyzer combined with a PTFE-lined electromagnetic flow meter, networked via Modbus RTU, provided real-time dosing optimization and auto-cleaning functionality.
Result:
Achieved ±0.02 pH accuracy, 15% energy savings, and reduced manual calibration workload.
Related Resources
Explore valuable content to gain insights into best practices and critical considerations when working with chemical and petrochemical systems.
Contact Leierda
High-performance instrumentation ensures accuracy, durability, and intelligent connectivity across every stage of the water and wastewater cycle.Contact our engineering team to design next-generation monitoring solutions that support operational efficiency and sustainable resource management.