The bleed rate of a grease may change over time due to degradation the thickener microstructure and decrease in oil content, as is released from grease. In this work, properties—quantified by permeability—of five types lubricating greases are studied. Controlled shear ageing performed using worker. It shown that does not significantly worker at room temperature, opposed changes rheology microst...

The physicochemical qualities of a refinery effluent and water and sediment of an effluent receiving water body were investigated. The treated refinery effluent contained very high concentrations of phenol (11.06 mg/l), oil and grease (7.52 mg/l), ammonia (8.52 mg/l), COD (91.76 mg/l), TDS (390.6 mg/l) and phosphate (6.2 mg/l), but low in sulphide, nickel, lead, copper and chromium, which were ...

One of the principal components of the contaminant load in urban stormwater runoff is oil and grease (O&G) pollution, resulting from vehicle emissions. A mulch layer was used as a contaminant trap to remove O&G (dissolved and particulate-associated naphthalene, dissolved toluene, and dissolved motor oil hydrocarbons) from a synthetic runoff during a bench-scale infiltration study. Approximately...

In this study polyethersulfone ultrafiltration membrane were prepared with the modifier gelatin at 0, 5, 10, 15 and 20 wt % using DMF as solvent by phase inversion process. Morphologies and characteristics of the membranes were investigated through the methods of SEM, XRD, contact angle measurements. The performance of the modified membrane for the treatment of leather and distillery wastewater...

This paper discusses nitrogen removal mechanisms in an aerobic membrane bioreactor (MBR) treating high strength pet food wastewater characterized by oil & grease, COD, BOD5, TSS, TKN, NH4-N concentrations of 2800 mg/L, 25000 mg/L, 10000 mg/L, 4500 mg/L, 1650 mg/L and 1300 mg/L respectively. An MBR operating at SRT >25 days achieved mixed liquor total suspended solids (MLTSS) concentrations >300...

This paper presents a new nanolubricant for the intermediate gearbox of the Apache aircraft. Historically, the intermediate gearbox has been prone for grease leaking and this natural-occurring fault has negatively impacted the airworthiness of the aircraft. In this study, the incorporation of graphite nanoparticles in mobile aviation gear oil is presented as a nanofluid with excellent thermo-ph...

Five common ball bearing greases were studied using a grease-on-paper test configuration, where the bleeding of is described by dynamics driving capillary pressure provided paper and its opposing counterpart in grease matrix. The Washburn-like model for extracting retaining pressure, determined affinity oil matrix, has proven to be applicable made various type thickeners base oils, can potentia...

In this work, a chemical modification method was used to prepare silicone grease with high thermal conductivity. We report two preparation methods for conductive fillers, which are hydroxylated boron nitride-grafted carboxylic oil (h-BN-OH@CS) and amino (h-BN-NH2@CS). When h-BN-OH@CS h-BN-NH2@CS were filled 30 wt% in the base grease, conductivity 1.324 W m−1 K−1 0.982 K−1, is 6.04 4.48 times th...