00513naa a2200157 a 450000100080000000500110000800800410001910000220006024500900008226000090017265300260018170000230020770000200023070000190025077300860026914147052002-11-25       1998    bl ---       0--  u    #d1 aFURTADO, A. A. L.  aEffect of hydraulic retention time on nitrification in an airlift biological reactor.  c1998  aEfluentes industriais1 aALBUQUERQUE, R. T.1 aLEITE, S. G. F.1 aPECANHA, R. P.  tBrazilian Journal of Chemical Engineering, Sao Paulogv.15, n.3, p.303-307, 1998.