Ensuring Clean & Efficient Water Treatment Through Advanced Instrumentation & Control
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Ensuring Clean & Efficient Water Treatment Through Advanced Instrumentation & Control

By 06/09/2023September 13th, 2023No Comments

Revolutionizing Water Treatment Efficiency & Reliability

Water treatment processes play a pivotal role in transforming raw water into safe and usable resources. However, the complexity of these processes demands precision, accuracy, and efficient control. This is where cutting-edge instrumentation and control systems step in. By harnessing the power of technology, industries can optimize their water treatment operations, ensuring not only compliance with stringent regulations but also the preservation of valuable resources. With a focus on specialized solutions, Dpstar plays a crucial role in optimizing water treatment processes through precise measurement and control techniques. In this journey toward sustainable water management, Dpstar emerges as a trusted partner. With a legacy of excellence in measurement and control solutions, Dpstar offers a range of innovative products designed to enhance the accuracy, efficiency, and reliability of water treatment processes.

Shaping The Future of Water Treatment with
PR Electronics Solutions

Accurate measurement and precise control are crucial components in the realm of water treatment processes, playing an indispensable role in ensuring safe, clean, and reliable water supply. The impact of advanced instrumentation goes beyond the surface, deeply influencing various aspects of efficiency, cost savings, and environmental responsibility.

Through the integration of advanced instrumentation and control solutions, water treatment processes can achieve unparalleled levels of accuracy, efficiency, and environmental responsibility. As we explore various applications in the world of water treatment, the critical importance of measurement and control becomes evident in shaping a sustainable and safer future.

Accurate measurement and precise control are crucial components in the realm of water treatment processes, playing an indispensable role in ensuring safe, clean, and reliable water supply. The impact of advanced instrumentation goes beyond the surface, deeply influencing various aspects of efficiency, cost savings, and environmental responsibility.

Through the integration of advanced instrumentation and control solutions, water treatment processes can achieve unparalleled levels of accuracy, efficiency, and environmental responsibility. As we explore various applications in the world of water treatment, the critical importance of measurement and control becomes evident in shaping a sustainable and safer future.

With a reputation for innovation and reliability, PR Electronics provides a range of instruments that empower industries to optimize water treatment procedures, paving the way for enhanced efficiency, cost-effectiveness, and eco-conscious practices. From wastewater management to filtration systems, each application requires a unique approach, and PR Electronics offers tailored solutions designed to address specific challenges. This blog delves into the crucial role that PR Electronics plays in transforming water treatment challenges into opportunities for progress, emphasizing the importance of precise measurement and control in securing a cleaner, more sustainable future.

With a reputation for innovation and reliability, PR Electronics provides a range of instruments that empower industries to optimize water treatment procedures, paving the way for enhanced efficiency, cost-effectiveness, and eco-conscious practices. From wastewater management to filtration systems, each application requires a unique approach, and PR Electronics offers tailored solutions designed to address specific challenges. This blog delves into the crucial role that PR Electronics plays in transforming water treatment challenges into opportunities for progress, emphasizing the importance of precise measurement and control in securing a cleaner, more sustainable future.

Importance of Measurement & Control

Ensuring Quality & Compliance

Accurate measurement ensures safety and compliance, while control prevents imbalances, upholding high standards.

Cost Savings

Identifying anomalies promptly can avert costly system failures and maintenance disruptions.

Importance of Measurement & Control

Ensuring Quality & Compliance

Accurate measurement ensures safety and compliance, while control prevents imbalances, upholding high standards.

Cost Savings

Identifying anomalies promptly can avert costly system failures and maintenance disruptions.

Empowering Decision-Making

Accurate measurements enable informed decisions, trend identification, and efficiency improvements.

Predictive Maintenance

Identifying issues before they become critical minimizes downtime, enhances the lifespan of equipment, and prevents costly repairs.

Environmental Impact

Ensures minimal environmental impact while achieving desired treatment outcomes.

Empowering Decision-Making

Accurate measurements enable informed decisions, trend identification, and efficiency improvements.

Predictive Maintenance

Identifying issues before they become critical minimizes downtime, enhances the lifespan of equipment, and prevents costly repairs.

Environmental Impact

Ensures minimal environmental impact while achieving desired treatment outcomes.

Industrial Water Management Solutions

Water treatment plays a critical role in diverse applications, demand tailored solutions to address unique challenges and ensure optimal outcomes. Let’s delve into each of the applications, exploring their significance, challenges, specific requirements. By exploring each application in detail, we uncover the intricate demands of water treatment and how PR Electronics’ solutions address these requirements. Through precise measurements, reliable control, and effective data transmission, PR Electronics contributes to optimizing water treatment processes across these varied applications.

1. Reverse Osmosis – Isolation / Signal Splitting

Purpose: Reverse osmosis purifies water by removing larger particles, ensuring safe drinking water.

Importance: Accurate measurements of flow, pressure, and temperature are essential for effective operation.

Challenges: Achieving precise measurements in dynamic conditions, pressure variations, and chemical compatibility.

Requirements: Reliable instruments for pressure and temperature measurements, isolation solutions for signal accuracy.

Purpose: Reverse osmosis purifies water by removing larger particles, ensuring safe drinking water.

Importance: Accurate measurements of flow, pressure, and temperature are essential for effective operation.

Challenges: Achieving precise measurements in dynamic conditions, pressure variations, and chemical compatibility.

Requirements: Reliable instruments for pressure and temperature measurements, isolation solutions for signal accuracy.

Solutions:

The technology works by using a high-pressure pump to increase the pressure on the salt side of a reverse osmosis membrane, forcing water through the membrane while almost all (approximately 95% to 99%) of dissolved salts remain behind in the reject steam. The more concentrated the feed water, the more pressure is required to overcome the osmotic pressure.

In a reverse osmosis system, measurements like flow, pressure, and temperature are necessary, and in this case, all are measured with two-wire transmitters. The output signals from these transmitters are connected to a local control panel and the main PLC. The PR 3109 isolated converter / splitter is an excellent solution that powers the two-wire transmitters and provides high isolation between input and both outputs. This is a great replacement solution for older systems where one input is repeated using an extra analog output on the PLC. Our solution results in increased signal accuracy with super-fast response time and the spare PLC analog output channels are now available for other tasks.

2. Multimedia Filter – Isolation / Conversion

Purpose: Reducing turbidity in incoming water for enhanced clarity.

Importance: Pressure measurements crucial for monitoring head loss.

Challenges: Accurate pressure readings in varying flow rates, preventing clogging, and system efficiency.

Requirements: Pressure transmitters, isolators, and converters for reliable measurements.

Purpose: Reducing turbidity in incoming water for enhanced clarity.

Importance: Pressure measurements crucial for monitoring head loss.

Challenges: Accurate pressure readings in varying flow rates, preventing clogging, and system efficiency.

Requirements: Pressure transmitters, isolators, and converters for reliable measurements.

Solutions:

As the water flows through the media, solids are trapped, increasing head pressure and decreasing flow. Eventually, the flow drops to a point where the filter must be cleaned. A differential pressure transmitter is used to measure when the backwash should be initiated.

The DP transmitter is powered, measured, and isolated by the PR 9116A universal converter. The 9116A can detect any error on the 4…20 mA input signal and set a relay contact output. The 9116A can convert an active DP transmitter to a passive 4…20 mA output signal.

3. Clarified Water Storage Tank – Level Alarms

Purpose: Storing water from clarifiers for controlled supply.

Importance: Maintaining proper water levels prevents overflow or underfilling.

Challenges: Accurate level measurement for alarms, preventing false alerts, and interfacing with control systems.

Requirements: Radar transmitters, level switches, and indicators for precise control.

Purpose: Storing water from clarifiers for controlled supply.

Importance: Maintaining proper water levels prevents overflow or underfilling.

Challenges: Accurate level measurement for alarms, preventing false alerts, and interfacing with control systems.

Requirements: Radar transmitters, level switches, and indicators for precise control.

Solutions:

The water level is measured with a two-wire radar transmitter connected to a 4116 universal transmitter with the PR 4510 display / programming front attached.

The two alarm relays are connected to a digital input card using on and off delay settings in the 4116. The 4…20 mA signal from the sensor is converted to a 0…10 VDC signal for an analog input card on the PLC. With its high isolation and flexible AC or DC power supply, the 4116 is the logical choice here.

4. Soft Water Tank – Galvanic Isolation

Purpose: Storing chemically softened water for various applications.

Importance: Accurate water level measurements ensure availability.

Challenges: Precise level detection in chemically active environments, noise immunity, and galvanic isolation.

Requirements: Pressure transmitters with isolation and retransmission capabilities.

Purpose: Storing chemically softened water for various applications.

Importance: Accurate water level measurements ensure availability.

Challenges: Precise level detection in chemically active environments, noise immunity, and galvanic isolation.

Requirements: Pressure transmitters with isolation and retransmission capabilities.

Solutions:

A pressure transmitter is used to measure the water level in the tank. The transmitter is powered by a PR 3104 isolated converter and the signal is converted to 0…10 VDC and retransmitted to the PLC, with the added benefit of galvanic isolation and strong noise immunity.

5. WAC DC Softeners – Linearization

Purpose: Softening hard water by ion exchange for improved quality.

Importance: Monitoring pH value to optimize the softening process.

Challenges: Accurate pH measurements in chemically reactive environments, signal linearization.

Requirements: Programmable transmitters with linearization.

Purpose: Softening hard water by ion exchange for improved quality.

Importance: Monitoring pH value to optimize the softening process.

Challenges: Accurate pH measurements in chemically reactive environments, signal linearization.

Requirements: Programmable transmitters with linearization.

Solutions:

In this process, monitoring of the pH value in the post acid feed pump is very important in order to ensure an effective softening process. To monitor the pH post acid feed pump, a pH sensor is connected to a PR 5116B programmable transmitter. The pH signal is linearized by configuring a multipoint linearization in the device configuration software, PReset. The 0…10 VDC output from the PR 5116B is connected to the DCS or PLC.

6. Filter Press Building – Noise Isolation

Purpose: Separating solids from water using pressure.

Importance: Accurate pressure and flow measurements for efficient filtration.

Challenges: Noise interference from VFDs affecting measurement accuracy.

Requirements: Noise-immune repeaters and power supplies.

Purpose: Separating solids from water using pressure.

Importance: Accurate pressure and flow measurements for efficient filtration.

Challenges: Noise interference from VFDs affecting measurement accuracy.

Requirements: Noise-immune repeaters and power supplies.

Solutions:

To optimize the process, control of the constant flow pumps is done through a PLC which requires input from a pressure transducer and a flow meter. Ultimately, the PLC controls a VFD (Variable Frequency Drive) on the pump motor.

Both the pressure transducer and the flow meter are two-wire styled units. Due to noise from the VFD, a robust, noise immune measurement system is needed. In this application, one double channel PR 5104A repeater / power supply is used providing high 3.75 kV isolation and fast response time.

7. Sludge Holding Tank – Level Measurement

Purpose: Dewatering sludge for efficient treatment.

Importance: Continuous level monitoring for volume control.

Challenges: Accurate level measurement in viscous media, pump control.

Requirements: Ultrasonic level transmitters and programmable indicators.

Purpose: Dewatering sludge for efficient treatment.

Importance: Continuous level monitoring for volume control.

Challenges: Accurate level measurement in viscous media, pump control.

Requirements: Ultrasonic level transmitters and programmable indicators.

Solutions:

In the sludge holding tank, sludge from the filter press is dewatered by gravity, which minimizes the volume of the sludge thereby reducing the required size and capacity of subsequent treatment processes and equipment. Sludge pumping requires equipment that can keep viscous media moving — without becoming clogged.

An ultrasonic level transmitter is installed to perform continuous level measurement for uninterrupted monitoring of sludge volume. A simple on/off pump control function is accomplished by using the PR 5715D programmable LED indicator with four relay outputs. The 4…20 mA signal from the PR 5715D is re-transmitted to the control system.

8. Chemical Softening System – Level Measurement

Purpose: Treating wastewater with chemicals to enhance quality.

Importance: Precise level and temperature measurements for accurate dosing.

Challenges: Chemical compatibility, hazardous areas, temperature measurement.

Requirements: Pressure transmitters with diaphragm seals and temperature transmitters with HART protocol.

Purpose: Treating wastewater with chemicals to enhance quality.

Importance: Precise level and temperature measurements for accurate dosing.

Challenges: Chemical compatibility, hazardous areas, temperature measurement.

Requirements: Pressure transmitters with diaphragm seals and temperature transmitters with HART protocol.

Solutions:

Level measurements are performed by using a 2-wire pressure transmitter with diaphragm seal. Temperature measurements are performed by using several temperature sensors which are wired to PR 5337D 2-wire transmitters with HART protocol. These transmitters make it possible to measure the temperature sensors in hazardous areas. Signals from both the pressure transmitter and the temperature transmitters are directed back to the safe area using the PR 9106B HART transparent repeater.

9. Water Recycle Tank – Level Measurement

Purpose: Storing excess wastewater during heavy rain.

Importance: Avoiding tank overflow and maintaining water balance.

Challenges: Accurate level measurement, overflow protection.

Requirements: Pressure transmitters, level switches, and converters.

Purpose: Storing excess wastewater during heavy rain.

Importance: Avoiding tank overflow and maintaining water balance.

Challenges: Accurate level measurement, overflow protection.

Requirements: Pressure transmitters, level switches, and converters.

Solutions:

The tank level measurement is done with a pressure transmitter and overflow protection is accomplished by means of two tank level switches. Both level switches are connected to the double-channel PR 9202B pulse isolator and the active mA signal from the level transmitter is connected to the PR 9113B temperature / mA converter.

The output signals from the PR 9202B and PR 9113B are connected to the control system. This solution also eliminates any potential ground loop issues because the field devices are not directly connected to a non-isolated input card.

10. Forced Draft Degasification – Level Measurement

Purpose: Removing dissolved gases from water.

Importance: Level switch for pump protection.

Challenges: Reliable level detection in a clear well.

Requirements: Level switch, solenoid driver, and isolator.

Purpose: Removing dissolved gases from water.

Importance: Level switch for pump protection.

Challenges: Reliable level detection in a clear well.

Requirements: Level switch, solenoid driver, and isolator.

Solutions:

To protect the downstream pump, a level switch in the clear well is necessary. This application is solved using a level switch and a makeup valve on the ion exchange system. The level switch is connected to the PR 9202B Pulse isolator, which is measured by the control system. An output from the control system activates PR 9203B Solenoid / alarm driver, which controls the makeup valve.

This application is IS/Ex due to the presence of flammable gases. The PR electronics solution provides high isolation and also the possibility of using the 4510 for test of the system.

11. Influent Line – Flow Measurement

Purpose: Monitoring incoming flow from sewers.

Importance: Accurate flow data for regulatory compliance.

Challenges: Accurate full pipe flow measurement, and stable readings.

Requirements: Electromagnetic flow meters, and universal transmitters.

Purpose: Monitoring incoming flow from sewers.

Importance: Accurate flow data for regulatory compliance.

Challenges: Accurate full pipe flow measurement, and stable readings.

Requirements: Electromagnetic flow meters, and universal transmitters.

Solutions:

Electromagnetic flow meters are installed for full pipe flow measurement. The flow meters are connected directly to the PR 4116 universal transmitter with the PR 4510 display / programming front attached.

The PR 4116 delivers a precise transfer of the signal to the control system and the PR 4510 the opportunity for a 100% digital process calibration eliminating zero and span calibration pots and also actual process values indication.

Customer Benefits

Implementing PR Electronics products across various water treatment applications brings forth a multitude of advantages that significantly elevate operational effectiveness and regulatory adherence.

Enhanced Efficiency

Our solutions optimize the performance of water treatment processes, ensuring smoother operations, minimized wastage, and increased overall efficiency.

Improved Data Accuracy

PR Electronics products provide accurate measurements, empowering operators with reliable data for informed decision-making, trend analysis, and process optimization.

Tailored Solutions

PR Electronics offers versatile solutions tailored to specific water treatment challenges. This adaptability ensures that every application receives a customized approach for optimal outcomes.

Reliable Performance

PR Electronics products are designed for durability and robust performance, enhancing the longevity of equipment and reducing the need for frequent replacements.

Regulatory Compliance

Our solutions contribute to regulatory compliance by maintaining precise control and ensuring that treatment processes consistently meet stringent standards.

User-Friendly Interface

Our user-friendly interfaces and displays simplify monitoring and control, enhancing operators’ ability to manage complex water treatment processes.

Empowering Water Treatment Excellence for a Sustainable Future

In the realm of water treatment, precision and control are paramount. Dpstar has played a pivotal role in revolutionizing this critical industry. Our advanced instrumentation and control systems have not only ensured that water treatment processes meet rigorous regulatory standards but have also elevated them to higher standards of quality and sustainability. By addressing the unique challenges faced in water treatment applications, we’ve empowered operators, reduced downtime, and enhanced the overall effectiveness of these processes. As water treatment continues to evolve, PR Electronics remains committed to pushing the boundaries of what’s possible in water treatment. Our mission is to continue providing tailored solutions that improve water quality, protect the environment, and make clean and safe water accessible to communities around the world.

Get In Touch With Our Experts Today!

Dpstar Group
No 35, Jalan OP ½, Pusat Perdagangan One Puchong,
Off Jalan Puchong, 47160 Puchong,
Selangor Darul Ehsan, Malaysia.
Email: [email protected]

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