The perfect formula for a wastewater treatment plant
October 2014Analytical Instrumentation & Environmental Monitoring
Energy consumption in the biological stage is one of the main cost drivers in wastewater treatment plants. This is mainly due to the oxygen blowers in the aeration process, thus optimisation of this process offers enormous potential for energy and cost savings.
More efficient aeration control
Oxygen blowers are often operated in a time-based manner or using only a simple form of oxygen control. Hence, in many cases the blowers run longer than necessary resulting in wasted energy. Endress+Hauser offers an aeration solution for dynamic control of blower hardware in accordance with the actual load: Liquicontrol.
It optimises operating times for nitrification and de-nitrification processes, which minimises energy consumption and operating costs. Moreover, Liquicontrol ensures accurate and reliable outlet values at all times.
Easy integration into existing plants
As a modular and scalable system, Liquicontrol can also be used for phosphate elimination. Precipitant pumps are controlled based on the actual load, offering significant savings on precipitant costs. Based on a PLC and individual signal interfaces, it is available as a standalone solution or as a master-slave configuration for larger plants with multiple aeration basins. This allows simple integration into an existing process control system and incorporation of existing instrumentation. What’s more, the remote access functionality offers flexible and effective process monitoring.
Process reliability and control
Due to continuous measurement and signal validation, Liquicontrol guarantees stable plant operation and reliable plant discharge. Should a measured value, or even a blower fail, the system switches the affected control loops to a failsafe condition and sends error or warning messages. The original plant operation settings can be restored at any time via selector switch. With Liquicontrol, plant personnel can switch between intermittent or continuous automatic mode and manual mode at any point, ensuring that they maintain complete control at all times.
Michael Szegedi, operating manager of Waldhausen Wastewater Treatment Plant had this to say about the system. “I was amazed by how fast and smoothly everything went. Within a few hours, the controller was up and running. After just a few weeks, we saw that we were able to operate the system at a very stable level while almost halving aeration times. Obviously, this saves energy.”
* Liquicontrol: optimising biological treatment at the highest level.
* Efficient: dynamic control of blower hardware and precipitant dosing pumps in accordance with the actual load.
* Reliable: constant signal and sensor validation ensure stable plant operation and reliable outlet values.
* Flexible: simultaneous control of nitrogen and phosphate elimination in multiple biological stages.
* Easy: quickly integrated into an existing process control system thanks to modern bus technologies.
* Convenient: intuitive menu and management of measured values and parameters – even with remote access.
Elevating mining separation processes through precision instrumentation Endress+Hauser South Africa
Analytical Instrumentation & Environmental Monitoring
In mining operations, the quest for efficiency and productivity is key. There is an urgent need for innovative solutions to enhance the performance of extraction processes while balancing operational costs and environmental impact.
Read more...Alfa Laval launches next generation
Analytical Instrumentation & Environmental Monitoring
Alfa Laval has launched Clariot, a next generation, AI-based condition monitoring solution, precision-built for hygienic process equipment to deliver more accurate analysis and support.
Read more...New uncompromisingly simple flowmeter line for processes Endress+Hauser South Africa
Flow Measurement & Control
The demand for simplicity in commissioning, operation and maintenance in industrial process plants has increased significantly in recent years. The new Proline 10 range of flowmeters from Endress+Hauser meets this requirement without compromise, because simplicity is the top priority.
Read more...The next generation in metal sorting Mecosa
Analytical Instrumentation & Environmental Monitoring
In the metal recycling industry, companies are increasingly challenged to not only improve the efficiency of their processes but also to raise the quality and purity of the sorted materials to new levels. By integrating proven spectral analysis technology into its market-leading REDWAVE XRF sorting system, REDWAVE is unlocking new opportunities for metal recycling, particularly in aluminium recovery.
Read more...Ensuring clean and safe water Endress+Hauser South Africa
Analytical Instrumentation & Environmental Monitoring
Endress+Hauser’s comprehensive range of disinfection sensors are designed to monitor and control disinfectant levels in water treatment processes.
Read more...Anton Paar launches inline refractometers for precision Brix monitoring Anton Paar
Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar has introduced innovative inline refractometers that are designed for continuous Brix concentration monitoring in metalworking machines, fruit and vegetable processing and other industrial processes.
Read more...Supporting fast, safe helicopter service across Sweden ATEQ South Africa
Analytical Instrumentation & Environmental Monitoring
In an environment with high risks and fierce competition, Storm Heliworks’ fleet of eight helicopters operates on assignments throughout Scandinavia. Maintenance is critical, and the company recently invested in a battery charger analyser from ATEQ Aviation.
Read more...Keeping a close eye on product quality and purity Endress+Hauser South Africa
Sensors & Transducers
Colour measurements are necessary in many processes to avoid product losses and ensure safe production and batching. The Memosens Wave CKI50 process spectrometer from Endress+Hauser is a compact, robust and process-friendly device allowing quality, batching and phase checks to be performed by a single instrument for the entire visible colour spectrum.
Read more...Where simplicity meets reliability Endress+Hauser South Africa
Temperature Measurement
The new iTEMP TMT31 temperature transmitter from Endress+Hauser combines simplified selection, ordering, installation and operation with the highest reliability and long-term stability in one product.
Read more...WearCheck introduces advanced Legionella testing to safeguard water quality Wearcheck
Analytical Instrumentation & Environmental Monitoring
WearCheck Water has expanded its expertise in water analysis with the introduction of Legionella pneumophila detection and enumeration. This positions the company at the forefront of water and surface safety monitoring, ensuring businesses, industries, and public institutions can proactively manage legionella contamination risks.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version