Automatic control of dissolved oxygen tension via fermenter agitation speed
نویسندگان
چکیده
منابع مشابه
Control of Dissolved Oxygen in Stirred Bioreactors
This report discusses control of dissolved oxygen in a bioreactor where the oxygen supply is manipulated using the stirrer speed. In batch and fed-batch cultivations the operating conditions change significantly which may cause tuning problems. Analysis using a linearized process model shows that the process dynamics is mainly affected by changes in the volumetric oxygen transfer coefficient KL...
متن کاملOnline monitoring of dissolved oxygen tension in microtiter plates based on infrared fluorescent oxygen-sensitive nanoparticles
BACKGROUND During the past years, new high-throughput screening systems with capabilities of online monitoring turned out to be powerful tools for the characterization of microbial cell cultures. These systems are often easy to use, offer economic advantages compared to larger systems and allow to determine many important process parameters within short time. Fluorescent protein tags tremendous...
متن کاملAnalysis of Wind Speed Forecasting Error Effects on Automatic Generation Control Performance
The main goal of this paper is to study statistical indices and evaluate AGC indices in power system which has large penetration of the WTGs. Increasing penetration of wind turbine generations, needs to study more about impacts of it on power system frequency control. Frequency control is changed with unbalancing real-time system generation and load . Also wind turbine generations have more flu...
متن کاملTwo - Level Dissolved Oxygen Control for Activated Sludge Processes
Two-level controllers for dissolved oxygen reference trajectory tracking for activated sludge processes is proposed and investigated. Both the nutrient and the phosphorous removal from a wastewater by its biological treatment using an activated sludge technology are considered. Typically, an aeration system itself is a complicated hybrid nonlinear dynamical system with faster dynamics compared ...
متن کاملAdaptive dissolved oxygen control based on dynamic structure neural network
Activated sludge wastewater treatment processes (WWTPs) are difficult to control because of their complexnonlinearbehavior. In thispaper, anadaptive controllerbasedonadynamic structureneuralnetwork (ACDSNN) is proposed to control the dissolved oxygen (DO) concentration in a wastewater treatment process (WWTP). The proposed ACDSNN incorporates a structure variable feedforward neural network (FNN...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biotechnology and Bioengineering
سال: 1985
ISSN: 0006-3592,1097-0290
DOI: 10.1002/bit.260271017