Foamed alumina was previously synthesised by direct foaming of sulphate salt blends varying ammonium mole fraction (AMF), foaming heating rate and sintering temperature. The optimal product was produced with 0.33AMF, foaming at 100 °C/h and sintering at 1600 °C. This product attained high porosity of 94.39%, large average pore size of 300 µm and the highest compressive strength of 384 kPa. To i...

The primary degradation of a linear alcohol ethoxylate (AE) and a branched nonylphenol ethoxylate (NPE) was investigated in bench-scale activated sludge units treating a synthetic sewage feed. Biotreaters were gradually adapted to 10-100 mg/J surfactant and effluents monitored for loss of nonionic ethoxylate, foaming, feed BOD removal, nitrification and biosolids growth. Both surfactants were d...

The effects of different parameters on the hydrodynamics of trickle bed reactors were discussed for Newtonian and non-Newtonian foaming systems. The varying parameters are varying liquid velocities, gas flow velocities and surface tension. The range for gas velocity is particularly large, thanks to the use of dense gas to simulate very high pressure conditions. This data bank has been used to c...

Aluminum foam is usually used as the core of composite materials by combining it with dense materials, such as in Al foam core sandwich panels and Al-foam-filled tubes, owing to its low tensile and bending strengths. In this study, all-Al foam-filled tubes consisting of ADC12 Al-Si-Cu die-cast aluminum alloy foam and a dense A1050 commercially pure Al tube with metal bonding were fabricated by ...

(1) A more convenient method for maintaining constant turbidity in the culture cell is described. (2) An improved culture cell and cell wipers which do not cause foaming are described.

Foaming and spill-out from the drive end of the rotating stainless steel cylinder oxygenator has been a serious problem, but sure remedies for both defects have been discovered. Oxygenation has always been 85 to 100% even with flow rates over 6 litres/minute. The machine was passed as safe for clinical use after test runs had been made on dogs in 1959, at which time the cause of oxygenator fail...

Abstract The gluten protein was exposed to the X-ray radiations for different time range, comprising 1 and 3 seconds. objective of this study determine effect x-ray on physicochemical properties protein. Different functional proteins like water oil holding capacities, solubility, emulsification activity, stability index, foaming action stability, protein, moisture content, along with SDS PAGE, ...

Many materials require functionally graded cellular microstructures whose porosity is engineered to meet specific requirements of diverse applications (e.g. polymers and/or ceramics that mimic biological material such as soft tissue and bone). It has been shown in previous work that the bubble growth rate of a polymeric foam can be influenced by the surrounding acoustic environment and, once so...

The effects of natural fermentation and cooking on kariya seeds functional properties, chemical composition, and antinutritional properties were evaluated. Result showed a reduction in antinutritional properties and improvement in protein content which were observed to increase with cooking (at 100°C) and fermentation period (24-96 hr). Functional analyses showed an increase in foaming and emul...

Biodegradable plastics are thought to be the possible directions in managing plastic pollutions. Unfortunately, they not recycled most countries since designed decompose even though recycling is a more pragmatic method than landfill or incineration. Thus, it constructive develop methods recycle biodegradable yet recyclable plastics. In this study, we used cutlery with composite of poly(lactic a...