The increase of swine production in the Pacific Islands has inevitably led to environmental pollution concerns from discharged wastewater derived both washing and manure. slurry accumulates lagoons, where supernatant containing high levels pathogens nutrients becomes nonpoint source water that deteriorates quality receiving bodies. Soil filtration is a promising cost-effective technology for re...

This paper presents the results of an investigation into the treatment of Tehran Refinery effluents in UASB reactors. Four pilot-scale UASB reactors were built with similar dimensions, each with a volume of 45.78 1, and operated in parallel at 37 °C. The sludge seed was prepared from the waste activated sludge of the wastewater treatment unit of the refinery. The organic loading rates were grad...

This work evaluated caffeine removal in a vertical flow constructed wetland (VFCW), planted with Vetiveria zizanioides. The feeding was continuous (synthetic influent: mineral medium and caffeine) to reduce the concentration variations bed. Two influent concentrations (0.75 ± 1.0 mg·L−1 1.5 mg·L−1) were used constant hydraulic load (100 10 L·m−2·d−1). Plant growth monitored weekly, characteriza...

This paper presents an overview of different modelling and simulation (M & S) methods used in water treatment. Special emphasis is on pulp and paper industry. In chemical water treatment, M & S is successfully used in control design. Hybrid models based on a cascade approach are needed in biological wastewater treatment to cover different operating conditions. Uncertainty handling needs to be i...