Treatment of tar-containing wastewater is necessary for the successful operation of biomass gasification plants (BGPs). In the present study, tar-containing wastewater was treated using lime and alum for the removal of in-organics, followed by adsorption on powdered activated carbon (PAC) for the removal of organics. Limealum experiments were performed in a jar apparatus and activated carbon st...

Studies documenting the capacity of restored streams to reduce pollutant loads indicate that they are relatively ineffective when principal watershed stressors remain intact. Novel restorations are being designed to increase the hydraulic connectivity between stream channels and floodplains to enhance pollutant removal, and their popularity has increased the need for measurements of potential l...

The use of novel flocculants in combination with a sequencing batch reactor (SBR) for the treatment landfill leachate and municipal wastewater has been shown to be an effective method reducing polluted effluents. Co-treatment mixture was performed at 5%, 10%, 15% 20% SBR effluent treated by coagulation–flocculation. 6 d hydraulic retention time (HRT) 30 solids (SRT) removed 58 70% COD, 86 93% a...

The ANITATM Mox Process is a single-stage deammonification process utilizing moving bed biofilm reactor (MBBR) technology. Early studies indicated that the Integrated Fixed-Film Activated Sludge (IFAS) configuration was an effective approach to improve ANITATM Mox performance. Two studies on ANITATM Mox IFAS were conducted at full-scale and pilot-scale levels. The full-scale study compared the ...

The efficiency of constructed wetland to treat weak and medium primary sewage effluent was tested under three rates of sewage inflow and two types of growing plants (i.e., leaf cattail and common reed). The capability of the wetland to remove COD, BOD, TSS, TDS and F. coliform from the primary weak sewage increased with decreasing the rate of the sewage inflow from 12 L/hr. to 6L/hr., with litt...

AquaFuture operates a 1.8 million gallon recirculating aquaculture facility capable of filtering the waste products from over three quarters of a million fish that are fed over one million pounds of feed per year. This paper describes a compact system for effluent treatment and residuals management that has proven effective at maintaining water quality within compliance limitations. Solids are ...

Moving bed biofilm reactor (MBBR) is a process in which attached growth is utilized for wastewater treatment. This process does not require sludge recycling or backwash. Activated sludge processes can be promoted to an MBBR by adding media to an aeration tank. Rapid sand filter is a physical method for the removal of total suspended solids (TSS) in advanced wastewater treatment. The purpose of ...