The performance of two laboratory-scale biofilters packed with pressmud (BF1) and sugarcane bagasse (BF2) was evaluated for gas-phase xylene removal under various operating conditions. Biofilter was inoculated with a mixed culture obtained from pharmaceutical sludge. Experiments were carried out at different flow rates (0.03, 0.06, 0.09 and 0.12 m h) and inlet xylene concentrations (0.2, 0.4, 0...

Nutrients can cause eutrophication of natural water bodies. Thus, urban stormwater which is an important nutrient source has to be treated in order to reduce its nutrient loads. Biofilters which use media, biofilms and plants, are a good treatment option regarding nutrients. This paper presents the results of a biofilter column study in cold temperatures (+2°C, +8°C, control at +20°C) which may...

Over the past decade, the environmental impact of wastes discharged from high-density flow-through fish-production systems has been viewed with increasing concern. Recirculating aquaculture systems are gaining wider acceptance because of their ability to reduce waste discharges, improve quality control, and reduce costs. The crucial processes that must be addressed in treating recirculating wat...