The foam-mat drying was used as a dehydration method for açaí pulp. types of foaming agents, the influence concentration and whipping time were evaluated foam formation. After choosing agent/additive 2² Factorial Experimental Design, with three central points realized to process conditions. optimized condition verified by desirability function it compared pulp both freeze-dried. Emustab identif...

This paper shows how fused decomposition modeling (FDM), as a three-dimensional (3D) printing technology, can engineer lightweight porous foams with controllable density. The tactic is based on the 3D of Poly Lactic Acid filaments chemical blowing agent, well experiments to explore FDM parameters control material Foam porosity investigated in terms fabrication such temperature and flow rate, wh...

Common Portland cement was used as the main matrix material and cementations material, fly ash admixture, 30 % wt hydrogen peroxide foaming agent other additives to prepare based condensate porous material. The optimum amount of determined by water absorption release experiment, metal fiber added enhance collecting performance. As increased, rate decreased, content 2.73 %, had better performanc...

Foaming of activated sludge (AS) causes adverse impacts on wastewater treatment operation and hygiene. In this study, we investigated the microbial communities of foam, foaming AS and non-foaming AS in a sewage treatment plant via deep-sequencing of the taxonomic marker genes 16S rRNA and mycobacterial rpoB and a metagenomic approach. In addition to Actinobacteria, many genera (e.g., Clostridiu...

This study examined an enhanced foam-flooding system incorporating nanoparticles and polymers under geological conditions of a reservoir the Shu 16 block in Yushulin oilfield. The is mainly comprised anionic foaming agent (CQS-1) nonionic surfactant (FH-1). We screened 17 foams by evaluating their volumes foam half-lives using Waring-blender dynamic analysis methods, were selected after examini...

Shale reservoirs are characterized by extremely low porosity and permeability, poor connectivity, high content of clay minerals. This leads to the reservoir being vulnerable imbibition damage caused foaming agent solutions during foam drainage gas recovery. It results in decrease permeability reduction well production ultimate Therefore, as most commonly used production, it is particularly impo...

Anaerobic digestion (AD) is a complex biological system which can be affected by several operational problems. Among them, biological foaming is one of the most difficult to deal with. It has many effects, such as causing gas pipe clogging and probe failures, and it can affect mixing devices, etc. Since the mechanisms involved in biological foaming development are not fully understood, it is no...