This study examines the effects of manganese oxide octahedral molecular sieve chitosan microspheres (Fe3O4@OMS-2@CTS) on anaerobic and aerobic microbial communities during sewage biological treatment. The addition of Fe3O4@OMS-2@CTS (0.25 g/L) resulted in enhanced levels of operational performance for decolourization dye X-3B. However, degradation dye X-3B inhibition in the presence of Fe3O4@OM...

Water utilities, commercial and industrial establishments are required to upgrade or install new treatment systems comply with the revised effluent standards issued by Department of Environment Natural Resources – Management Bureau (DENR EMB) which now includes removal monitoring nutrients (nitrogen phosphorus components). One solution is utilize a biological nutrient technology (BNRT) system c...

In this study, a lab-scale fixed-film bio-media process was developed and operated to evaluate nitrogen removal from domestic sewage treatment plants. For removal, the applied in series with anaerobic, anoxic, aerobic units three separate reactors that were continuously at same loading rates hydraulic retention time. A biofilm separation bioreactor for on-site wastewater employed synthetic fibe...

Biological trickling filters are widely used for sewage treatment. This study models a biological filter based on an anaerobic–anoxic–oxic process (A2O–BTF), established by combination of aerobic and anaerobic technology. The performance operational parameters were analyzed using Sumo, commercially available wastewater treatment (WWTP) simulation software. the conventional three-stage (Three-St...

Samples of sewage from treatment plants at the "G. Martino" University Hospital of Messina (AOU) and that of Messina City Council were analysed to detect the hepatits E virus. Samples were taken on sewage entering and exiting the treatment plants on a monthly basis over a one-year period from both the hospital plant (24 samples) and the municipal plant (22 samples). All sewage samples were pret...

Biological Nutrient Removal (BNR) is critical for the preservation of our lakes and streams. Large amounts of waste products are passed through our sewage treatment systems on a continuous basis. Nutrient loads discharged from these systems must be reduced to avoid eutrophication of the receiving waters. Microbes are particularly useful in biodegrading most of the compounds treated by wastewate...

Biological nitrogen removal from wastewater is widely used all over the world on account of high efficiency and relatively low cost. However, not optimized when organic matter has inadequate effect for lack a sufficient carbon source in influent. Although addition an external (e.g., methanol acetic acid) could solve insufficient problem, it raises operating cost treatment plants (WWTPs). On oth...

One of the challenges to be confronted during landfill operations is to handle the landfill leachate with high ammonium content. Current biological ammonium removal processes either are complicated and hard to manage, or require major investments. Low cost and low maintenance onsite systems for the treatment of landfill leachate with high ammonium content are in urgent need, especially for land...