Attend OZWATER’15, Australia’s International Water Conference and Exhibition at the Adelaide Convention Centre on 12-14 May 2015.
At the conference JIPL’s partners Mike Smith from Invent Pacific and Ian Trillo from ATC, Barcelona, Spain will be presenting a paper on “Process and Aeration Optimisation using Online Off-gas Analysis.” Click here to read the paper presented: Process Aeration Optimisation using Online Offgas Analysis
Traditionally, aeration system control and monitoring has been based on liquid phase measurement of parameters related to aeration system performance. Many of these parameters have been used as indicators of biological process and aeration system performance, but none have been able to provide accurate, real-time measurement of process oxygen demands and aeration equipment performance.
A new age in Aeration Process Control and Monitoring
The ALPHAMETER® combines liquid and gas measurements to develop real-time measurement of key parameters for biological and aeration control including:
- Aeration System Oxygen Transfer Efficiency (OTE)
- Process Oxygen Uptake Rate (OUR)
- Mixed Liquor α Value
- Eliminates iterative procedures (Trial & Error)
- Direct determination of airflow requirements
- Increased stability allows lowering of target set points
- Instant knowledge of system oxygen transfer characteristics and distribution
- Off-gas is already a final product of the process. The information collected allows real-time knowledge of process variables and conditions, eliminating the effect of process inertia
- Increased energy savings
Key Knowledge Factors:
- Increased process control & stability
- Continuous real-time monitoring of main aeration process parameters
- Real-time reporting of aeration system health and performance
- Information about hazardous events influencing the AS
The ALPHAMETER® is an extremely useful tool for the monitoring of both the biological process and the aeration system performance. The ability to develop real-time OUR (Oxygen Uptake Rate) data allows quantifying diurnal/seasonal variation in process loadings and demands, detects process inhibitions and provides vital information on plant bottlenecks or process unbalances.
The ALPHAMETER® allows a quantitative approach to aeration system control by providing real-time measurement of process oxygen demand (OUR) and parameters affecting oxygen transfer. Combined knowledge of the amount of oxygen required to fulfill process needs and all the parameters affecting oxygen transfer allows the ALPHAMETER to determine the exact amount of air required to meet both biological process and operator control needs, thus eliminating all trial and error, iterative and tuning based control algorithms.
This direct approach greatly reduces aeration control response time allowing more accurate control. This results in increased system stability and significant energy savings.