9 research outputs found
Dynamic simulations of waste water treatment plant operation
Activated Sludge Model No. 1 (ASM1) was used to model the biological stage of an actual waste
water treatment plant (WWTP). Some possibilities for the utilisation of simulation programs for
WWTP operation are presented. Simulation calculations were performed taking the conditions of
WWTP in Nové Zámky, the Slovak Republic, into consideration, where measurements of the diurnal
variations in waste water flow and composition at the inlet and outlet were carried out. A calibrated
model predicting the influence of changes in the waste water composition and the operational
parameters on the effluent waste water quality and related operational costs is available. Values
of the operational parameters (solids retention time, internal recirculation flow, dissolved oxygen
concentration) for effective operation (effluent concentration values, oxygen consumption, charges,
i.e. charges for waste water discharge into the recipient water body) of the WWTP were obtained
by simulations. The presented results are for illustration purposes only and are not intended as
instructions for the operation of a waste water treatment plant. They correspond to the calibrated
mathematical model ASM 1 based on the results of experimental measurements and operational
data, as well as on the technical and monitoring level of the WWTP