Kinetics study of nutrients removal from synthetic wastewater using media as submerged in continuous activated sludge system

Abstract. Domestic wastewater effluents are one of the main sources environmental contaminants such as nutrients. Wastewater has been treated with biological processes for over a century to remove contaminants. Conventional treatment plants continue struggle meet Malaysian discharge limits. Stringent regulation enforced by governing authorities makes it obligatory comply guidelines fulfill ammonia and nitrate levels. To assist system in meeting these limits, is recommended that submerged attached growth Palm Oil Clinker (POC) can be incorporated into conventional system. The study was conducted continuous attach activated sludge which evaluated (CSAR). A basket installed aeration tank reactor submerge (POC). Two identical reactors were operated each (A) referred media while (B) control. studies carried out at various influent flow rates between 5 30 L/d, constant organic load rate OLR. Parameters NH4-N, NO3-N, monitored. Generally, Ammonia Nitrate highly removed. At all conditions (5-30 L/d), maximum minimum NH4-N removal 92% 85%. experimental data validated through well-established mathematical bio-kinetic models First order model, Monod models. kinetic coefficients R2 first-order model substrate 0.97 Ammonia. steady-state fitted both obtained flowrate. Monod's appropriate describing results terms microbial parameters. (0.984) Ks 303 Ammonia, respectively. While µmax 10 g/L.d