Vol. 15 No. 2 (1982)

. A series of experiment on the contact-stabilization process treating municipal waste water were conducted at various sludge ages. Sludge recycling rates, hydraulic retention times in contact-stabilization reactors, and at constant temperature. A kinetic model of nitrifiers growth rates in the contact reactor were developed based on the calculated values of the experimental results, as a function of sludge age and fractional biomass in the contact reactor. The influence of these parameters on the nitrification efficiency were observed during the experiments; the ammonia removal rate as a…

No Abstract

. Design procedures for Linear-optimal control systems with respect to a quadratic performance index are developed. Via a Time-domain Technique and based on the phase-variable canonical-system description, the optimal feedback vector k and the weighting matrix Q can be directly determined from the characteristic equations of the open and closed loop systems. Formerly the design procedures has been developed for single input systems, and then to be extended to multi-systems. PROSEDUR RANCANGAN UNTUK SISTEM-SISTEM KONTROL OPTIMAL DENGAN MASUKAN BANYAK MELALUI BIDANG WAKTUSari. Suatu prosedur…