%0 Journal Article
%T Influencia de la relaci¨®n C:N en la remoci¨®n de nitr¨®geno usando un sistema combinado de reactores por carga secuencial
%A Ferrara de Giner
%A Griselda
%A Ram¨ªrez
%A Armando
%J Revista de la Facultad de Ingenier¨ªa Universidad Central de Venezuela
%D 2010
%I Scientific Electronic Library Online
%X this work permitted to evaluate the influence of c/n ratio in a biological treatment system, integrated by two sequential batch reactors, rcsb and rcs. the rcsb permitted the nitrification of the synthetic residual liquid of weak composition and then the denitrification process took place in the rcs under three different conditions of volumetric fraction (¦Á1=0,50; ¦Á2=0,20; ¦Á3=0,00) used in order to balance the organic carbon content. the system was operated by 6 hours cycles to complete the nitrification (rcsb) and the denitrification (rcs) process. the c/n ratio in the liquid feeding the rcs was 18,7; 6,99 and 7,24 mg cod/mg nox-n for the three ¦Á1, ¦Á2 and ¦Á3 conditions. the nitrate formation in the rcsb was 91%, 95% and 95% for ¦Á1, ¦Á2 and ¦Á3 respectively. the removal of the nitrate in the rcs reached 99%, 77% and 76% for ¦Á1 ¦Á2 and ¦Á3 respectively, indicating a better denitrification process when organic carbon is supplied to the system. the nitrate concentration in the effluent of the rcs were 0,06; 3,6 and 3,9 mg/l for ¦Á1 ¦Á2 and ¦Á3 respectively, which are much lower than the legal requirements in venezuela.
%K bioreactors
%K nitrification-denitrification
%K aerobic-anoxic biological process
%K sequential batch reactors
%K wastewater treatment.
%U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0798-40652010000400005&lng=en&nrm=iso&tlng=en