ONLINE IDENTIFICATION OF ACTIVATED-SLUDGE SETTLING PROPERTIES

Activated sludge settling properties can be characterised with two tim e-varying parameters. A simple method is presented for online identifi cation of these parameters. The method is obtained as an exact solutio n of the filtration problem; it is obtained on the basis of the settli ng process description and the parameters variation process descriptio n. The method is suitable for practical application. It is a more exac t solution of the identification problem than the alternative regressi on analysis method. An easily implementable system is proposed for aut omatic characterisation of the sludge settling properties.