نتایج جستجو برای: nanofiltration membrane
تعداد نتایج: 389886 فیلتر نتایج به سال:
Pulp and paper waste water is one of the major sources of industrial water pollution. This study tested the suitability of ceramic tubular membrane technology as an alternative to conventional waste water treatment in the pulp and paper industry. In this context, in series batch and semi-batch membrane processes comprising microfiltration, ultrafiltration and nanofiltration, ceramic membranes w...
Cardoon Hydrolysate Detoxification by Activated Carbon or Membranes System for Bioethanol Production
Advanced biofuels incorporation into the transportation sector, particularly cellulosic bioethanol, is crucial for attaining carbon neutrality by 2050, contributing to climate changes mitigation and wastes minimization. The world needs biofuel be commercially available tackle socioeconomic challenges coming from continued use of fossil fuels. Cynara cardunculus (cardoon) a cheap lignocellulosic...
Aqueous phase separation (APS) is a recently developed sustainable alternative to the conventional organic solvent based nonsolvent-induced (NIPS) method prepare polymeric membranes. In APS, polyelectrolytes are precipitated from aqueous solutions through pH or salinity switches. Although APS differs NIPS in polymer and solvents, they share many tuning parameters. this work, we investigate APS-...
The presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. utilization nanofiltration (NF) membranes has emerged as one the most effective methods ion removal from due their efficient operation, adaptable design, and affordability. NF created advanced materials are becoming increasingly popular ability depollu...
The possibility of removing tetracycline (TRC) from water in an integrated advanced oxidation and membrane filtration process was investigated. Ozonation UV/H2O2 photooxidation were applied for the destruction TRC. Six products (OPs) retaining structural core TRC have been identified. One new product, not reported so far literature, identified—ethyl 4-ethoxybenzoate. All identified OPs effectiv...
This paper presents Membrane Bioreactor (MBR) and Nanofiltration (NF) systems as alternative effective approaches for treatment reusing domestic sewage. The goal is to investigate the general performance of a membrane bioreactor nanofilteration ability satisfy water reuse requirements using quality index such total suspended solids (TSS), chemical oxygen demand (COD), ammonia (NH3). findings sh...
Enzymes in living cells are highly dynamic but at the same time regularly confined for achieving efficient metabolism. Inspired by this phenomenon, we have prepared a novel biocatalytic membrane with high enzyme activity and stability tuning confinement strength of to enzyme, which was achieved via modifying support layer polymeric nanofiltration (NF) reversely filtrating enzyme. A mussel-inspi...
Adsorption of the trace contaminant estrone, a natural hormone and commonly abundant in surface waters and in treated as well as untreated wastewaters, to eight commercial nanofiltration (NF) and reverse osmosis (RO) membranes was investigated under welldefined conditions. Experiments were conducted in stainless steel stirred cells by spiking trace levels (100ng.L) of estrone into five differen...
Biofouling is still a major challenge in the application of nanofiltration and reverse osmosis membranes. Here we present a platform approach for environmentally friendly biofouling control using a combination of a hydrogel-coated feed spacer and two-phase flow cleaning. Neutral (polyHEMA-co-PEG10MA), cationic (polyDMAEMA) and anionic (polySPMA) hydrogels have been successfully grafted onto pol...
Background: Chitooligosaccharides (COS) with degrees of polymerization (DP) 6 to 8 are degraded from chitosan, which possess excellent bioactivities. However, technologies that could purify them from hydrolysis mixtures in the narrow DP range (984 to 1,306 Da) are absent. The objective of this research is to purify DP 6 to 8 COS by nanofiltration on the basis of appropriate adjustments of the f...
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