Wastewater containing high levels of phosphorus andnitrogen cause several problems, such as eutrophication,oxygen consumption, and toxicity, when dischargedinto the environment (Luostarinen et al.,2006). It is, therefore, necessary to remove such substancesfrom wastewaters in order to reduce their harmto the environment (Wang et al., 2006). Biologicalprocesses based upon suspended biomass are effectivefor organic carbon and nutrient removal from municipalwastewater plants. But there are some problems ofsludge settleability and the need for large reactors, settlingtanks and biomass recycling
đang được dịch, vui lòng đợi..
