The grease and oil trap systems (GOTS) of four university food service establishments (FSE) were assessed treated to evaluate the potential use sludge collected produce compost. from each FSE was kept in a drying bed for 30 days (SDB), during which time calcium oxide frequently added stabilization. deposited monthly reduced half after process then composter mixed period 22 with constant agitati...

Abstract Oil and grease are organic contaminants that detrimental to the environment. The high concentration of oil can cause clogging in sewer. Clogged sewers deteriorate sanitary conditions. Adsorption is one technique reduce wastewater. using natural resources overcome cost commercial activated carbon. Sewage sludge has potential as raw material for carbon because content. studies aim invest...

A membrane sequencing batch reactor (MSBR) treating hypersaline oily wastewater was modeled by artificial neural network (ANN). The MSBR operated at different total dissolved solids (TDSs) (35,000; 50,000; 100,000; 150,000; 200,000; 250,000mg/L), various organic loading rates (OLRs) (0.281, 0.563, 1.124, 2.248, and 3.372kg COD/(m(3)day)) and cyclic time (12, 24, and 48h). A feed-forward neural ...

The objective of this study was to investigate the benefits of co-digestion of a sludge-mix of primary sludge (PS)/thickened waste activated sludge (TWAS) with concentrated fat-oil-grease (FOG) over a wide range of FOG/sludge-mix volumetric feed ratios. The biodegradability (i.e., COD to methane conversion) of PS, TWAS, sludge-mix, and FOG was 43.0, 38.6, 41.8, and 97.7%, respectively, with a p...

Bioretention is a novel best management practice for urban storm water, employed to minimize the impact of urban runoff during storm events. Bioretention consists of porous media layers that can remove pollutants from infiltrating runoff via mechanisms that include adsorption, precipitation, and filtration. However, the effectiveness of bioretention in treating repetitive inputs of runoff has n...