Membrane distillation (MD) is a thermally driven separation process that employs hydrophobic membrane as barrier forthe liquid phase, allowing only vapor phase to pass through the pores. Wetting of pores by streams (i.e. loss characteristics membranes) crucial issue in MD treatment. This paper organized into two parts. The first part provides an overview theoretical background wetting phenomenon and guides reader experimental techniques presented literature for determining entry pressure...

The presence of micropollutants in aquatic environments is an increasing global concern due to their persistence and potential harmful effects on organisms. Among the most concerning these are microplastics, pharmaceutical compounds, personal care products, industrial chemicals, posing a significant threat human health ecosystems. This issue further exacerbated by diverse sources complex physicochemical properties micropollutants, as well inability conventional water wastewater treatment...

Pulp and paper waste water is one of the major sources industrial pollution. This study tested suitability ceramic tubular membrane technology as an alternative to conventional treatment in pulp industry. In this context, series batch semi-batch processes comprising microfiltration, ultrafiltration nanofiltration, membranes were developed reduce chemical oxygen demand (COD) remove residual lignin from effluent flow during sulfite production. A comparison terms separation efficiency...

Membrane bioreactor systems can enhance anaerobic lactic acid fermentation by reducing product inhibition, thus increasing productivity. In batch fermentations, the bioconversion of glucose is strongly inhibited in presence more than 100 g·L-1 and only possible when simultaneously removed, which be achieved ceramic membrane filtration. The crossflow velocity a important determinant flux transmembrane pressure. Therefore, to stabilize performance system during continuous fermentation, was...

The focus of this study was on the development and application ceramic hollow fiber membrane (CHFM) technology for treatment oilfield produced water (PW) prior to disposal/discharge into environment. PW refers any fossil that is brought surface along with crude oil or natural gas. It a complex mixture dispersed oil, dissolved organic compounds, suspended solids, production chemicals, heavy metals, radioactive minerals. difficult handle/treat represents largest volume waste associated gas...

In this study we investigate a laboratory scale vacuum membrane distillation system to produce pure water from model oil in emulsion. Experimental determination of liquid entry pressure (LEP) commercial Durapore^TM GVPH flat sheet using emulsions various concentrations has been carried out. Two different methods - frequently used, so-called static and novel dynamic method have investigated. case method, LEP value was found be 2.3 bar. No significant effect content on detected up...

During the treatment of oilfield produced water (PW) with ceramic membranes, process efficiency is primarily characterized by specific permeate flux and oil separation performance. In addition to membrane properties, increase in total filtration resistance (fouling) decline are strongly dependent on constituents PW as well conditions such trans-membrane pressure cross-flow velocity. The extensive study presented herein describes characterization, application performance various technologies...

Hemicelluloses are an abundant biopolymer resource with interesting properties for applications in coatings and composite materials. The objective of this investigation was to identify variables industrially relevant extraction processes that increase the purity hemicelluloses extracted from fruit residues. Our main finding is subcritical water, followed by precipitation alcohol, can be adjusted yield products a at least 90%. Purity determined based on total concentration glucose, galactose,...

Abstract Fructo‐oligosaccharides (FOS) are often produced via enzymatic conversion in industry. Enzyme membrane bioreactor (EMBR) can enhance the catalytic efficiency by in‐situ product removal. Its major bottleneck is fouling caused deposition of enzyme on surface. An EMBR system with a compact rotating disc device was established for continuous FOS production. This study further investigated influences rotation flux control and activity. The speed 600 rpm good compromise between control,...

Pharmaceutical compounds in aquatic environments are recognized as emerging contaminants due to their potential risks living organisms. The growing accessibility, widespread use, and disposal of pharmaceuticals have led a significant increase presence within wastewater streams. Due persistence resistance biodegradation environments, these water-soluble pharmacologically active organic micropollutants often evade conventional treatment processes, leading incomplete removal an escalating...

Vibrio natriegens is widely used as a production host for biotechnological processes due to its superior maximum glucose consumption rate, high growth and abundant ribosomes. Most bioprocesses also need scalable biomass separation step. This can be achieved by cross-flow filtration with ceramic membranes, although the membrane pores are susceptible fouling. However, fouling characteristics of V. culture broth have not been investigated in detail. We therefore characterized during from using...

Vibrio natriegens is widely used as a production host for biotechnological processes due to its superior maximum glucose consumption rate, high growth and abundant ribosomes. Most bioprocesses also need scalable biomass separation step. This can be achieved by cross-flow filtration with ceramic membranes, although the membrane pores are susceptible fouling. However, fouling characteristics of V. culture broth have not been investigated in detail. We therefore characterized during from using...

The concept of zero waste in the sugar industry has encouraged development technologies that promote utilization by-products, including enzymatic conversion feed stocks into nutraceutical products. Here we investigated a membrane reactor for production fructooligosaccharides (FOS) with immobilized enzyme (Pectinex Ultra SP-L) system using pretreated molasses as substrate cleaning efficiency and less fouling performance tools. resulting spectra showed high FOS yield 63% 89% from available...

Fructo-oligosaccharides (FOS) are linear fructans comprising 2-5 fructose units linked to a terminal glucose residue. They widely used as food and feed additives due their sweetness, low calorific value, prebiotic properties. Here we describe the synthesis of FOS catalyzed by cell-free crude enzyme solution containing recombinant fructosyltransferase (1-FFT) produced in yeast Kluyveromyces lactis. During catalysis, accumulates by-product eventually inhibits production. We therefore an...

Abstract The purpose of this research paper is to assess the effects process parameters—membrane rotational speed (1,200, 1,500 and 1,800 rpm), volume concentration factor (VCF) feed characteristics—in terms oil total organic carbon (TOC) separation capability, permeability permeate quality. For this, a series membrane filtration experiments were carried out systematically using rotating ceramic filter discs in fed-batch operating mode. variation was found minimize fouling significant...

Abstract Oil and gas industries generate large amounts of wastewater as a byproduct in both onshore offshore production operations. This is commonly referred to "produced water" (PW). PW very difficult treat its characteristics changes by well well. Treatment this could improve the economic viability these oil fields lead new source water for beneficial use. work describes research project that evaluated multistage treatment process oilfield produced generated from tank dewatering with...