| influence of support material on the immobilization of biomass for the degradation of linear alkylbenzene sulfonate in anaerobic reactors. | two horizontal-flow anaerobic immobilized biomass reactors (haib) were used to study the degradation of the las surfactant: one filled with charcoal (haib1) and the other with a mixed bed of expanded clay and polyurethane foam (haib2). the reactors were fed with synthetic substrate supplemented with 14 mg l(-1)of las, kept at 30+/-2 degrees c and operated with a hydraulic retention time (hrt) of 12h. the surfactant was quantified by hplc. spatial variation analyses were done to quantify organic ... | 2009 | 18814953 |