Liquiline Control is a PLC-based automation solution that ensures reliable nitrogen removal from wastewater, stable processes even during peak loads, and cost savings through optimized air supply to the aeration tank. It is designed as a modular, expandable and decentralized system in various housing configurations. This flexibility allows quick and easy integration into existing process control systems as well as the integration of existing instrumentation.
Solution overview:
Available for:
Voda in odpadna voda
Hardware & Software:
Based on a Programmable Logic Controller (PLC)
Available for installation in existing cabinets or as a separate turnkey cabinet
Easy integration into existing distributed control systems (DCS) via digital fieldbus communication
Also available as complete solution with control software, necessary instrumentation (e. g. ion-selective sensor or ammonium analyzer and oxygen sensor) and a wide range of services
Validation of measured values and sensor signals
Predictive control strategies for attenuating ammonium load peaks
Secure and convenient remote access via webserver
Operation via supplied touch display, via smartphone / tablet or from the control room
Adding further software modules is possible at any time
Services:
Consulting
Project management
Factory acceptance test (FAT)
Site acceptance test (SAT)
Certification (CE)
Commissioning by experienced Endress+Hauser service engineers
On-site trainings
Remote maintenance
Optimization during operation
Worldwide installation, maintenance, and service from a single source
Up to 30 % energy savings in the aeration process
The blowers in a wastewater treatment plant require enormous amounts of electricity – they account for up to 70 % of the plant's total energy requirements. Optimize your nitrogen removal by using Liquiline Control and tap into considerable savings potential. The automation system controls ammonium and nitrate removal based on the influent load and your individual limits for ammonium and total nitrogen. The result is reliable, energy-saving denitrification of the wastewater.
The Liquiline Control automation solution dynamically controls the air supply to the aeration tank in line with the fluctuating loads in the influent. It regulates the optimum amount of air based on the respective oxygen, ammonium and nitrate concentrations as well as the amount of wastewater flow. This way, you ensure reliable compliance with the limit values for total nitrogen and ammonium while saving large amounts of energy and on costs for the activated sludge process.
Always stay on the safe side with predictive control strategies
Even with dynamic inflows and loads and easily comply with defined limits for total nitrogen and ammonium at the outlet of your wastewater treatment plant.
Optimize your air supply
to the biology and thus your energy consumption with the automated system
Maximum control
Control up to three independent zones in the biological stage simultaneously
Remain flexible
for future adjustments and switch from intermittent to continuous aeration at any time
Permanent complete control of the process
You can adjust all relevant parameters (limit values and control parameters) at any time.
Liquiline Control regulates nitrification and denitrification in the Stadtlohn wastewater treatment plant. The control system ensures compliance with limit values and optimized energy usage.
To cut energy consumption in the biological phase of its wastewater treatment plant, the town of Velen bought energy-efficient blowers and integrated the Liquiline Control aeration control system.
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Interested in our solutions? Our consultants can answer all your questions
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S storitvijo vzdrževanja instrumentacije Endress+Hauser izboljšajte svojo obratovalno učinkovitost, zanesljivost meritev in zmanjšajte kakovostna, varnostna ter okoljska tveganja.
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