نتایج جستجو برای: nanofiltration membrane biological reactor nf
تعداد نتایج: 898357 فیلتر نتایج به سال:
A new treatment concept for drinking water production from surface water has been investigated on a pilot scale. The treatment concept consists of fluidized ion exchange (FIEX), ultrafiltration (UF), nanofiltration (NF), and granular activated carbon filtration (GAC). The FIEX process removed calcium and other divalent cations; the UF membrane removed particles and micro-organisms; and the NF m...
Membrane processes in drinking water applications are micro(MF), ultra(UF), and nanofiltration (NF). These processes remove turbidity and bacteria (MF), viruses and macromolecules (UF) and small molecules and hardness (NF). Of particular concern in water treatment is the removal of natural organic matter (NOM) which contains potential disinfection by-product precursors. The presence of colloids...
Nanofiltration (NF) is a compact process that has potential for removing organic and inorganic pollutants for drinking water. In this study, arious NF membranes for surface water treatment were compared using a batch-stirred cell and crossflow equipment in terms of solute rejection nd membrane flux. The rejection of natural organic matter (NOM) was closely related to ion rejection and membrane ...
Evaluation of Membrane Processes for Reducing Total Dissolved Solids Discharged to the Truckee River
Truckee Meadows Water Reclamation Facility TMWRF is a 150,000 m3/day 40 mgd tertiary wastewater treatment facility that serves the cities of Reno and Sparks, Nev. The effluent from TMWRF is discharged into the Truckee River which flows to Pyramid Lake—a very sensitive ecosystem and habitat for endangered species. Reverse osmosis RO and nanofiltration NF , in conjunction with ultrafiltration UF ...
Commercial nanofiltration (NF) membranes in spiral-wound configuration (NP030 from Microdyn Nadir and Desal DK from GE Water & Process Technologies) were used in a sequential design in order to produce a separated fraction of phenolic and sugar compounds from an aqueous artichoke extract. For both membranes, the effect of transmembrane pressure (TMP) on the permeation flux was evaluated. In...
<p>The application of ceramic Nanofiltration (NF) membrane in brackish water treatment is increasing due to strict quality standards. Ceramic NF a widely used process and has replaced reverse osmosis (RO) membranes many applications lower energy consumption higher flux rates. This work aims study the separation performance tubular TiO2 at low-pressure (2 bar) for single tertiary salt mixt...
A downstream process for the purification and concentration of formic acid (FA) from FA/gluconic (GA) mixtures, obtainable by a coupled biocatalytic reaction CO2 reduction glucose oxidation, has been developed. The involved two technologies: (i) first nanofiltration (NF) step to separate FA GA, (ii) second reactive liquid-liquid extraction (RLLE) concentrate FA. NF process, using Synder NFX mem...
Per- and poly-fluoroalkyl substances (PFAS)-contaminated wastewaters present major public health risks given the PFAS thermo-chemical stability its demonstrated adverse impacts on aquatic life, extended to entire food chain. To date, remediation of PFAS-contaminated have been mainly undertaken with poorly cost-effective strategies, involving multi-step processes. Advanced separation systems ena...
Tanneries produce large amounts of wastewater with high concentrations suspended solids, organic matter, and salts. Treatment reuse these effluents are great importance to preserve water resources save costs. Although solids percentages matter can be eliminated by physico-chemical biological processes, refractory chemical oxygen demand (COD) salts will remain in the after processes. In particul...
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