نتایج جستجو برای: reverse osmosis ro

تعداد نتایج: 134176  

2009
C. Riziero Martinetti Amy E. Childress Tzahi Y. Cath

Vacuum-enhanced direct contact membrane distillation (VEDCMD) and forward osmosis (FO) were investigated for water recovery enhancement in desalination of brackish water. Past studies have demonstrated that both VEDCMD and FO can be effectively utilized in the treatment of a wide range of highly concentrated feed solutions. In the current study, two reverse osmosis (RO) brine streams with total...

Journal: :Applied Water Science 2022

Abstract A seawater reverse osmosis (RO) plant layout based on multistage RO with stages located at different elevations above sea level is described. The uses the weight of a column from pumped storage as head pressure for (gravity-driven RO) or to supplement high-pressure pumps used in (gravity-assisted RO). use gravitational force reduces specific energy compared using pumps. By locating dem...

Journal: :Canadian Journal of Chemical Engineering 2023

Cellulose nanocrystals (CNCs) are biodegradable nanoparticles with a high aspect ratio and abundant surface hydroxyl groups resulting in negatively charged hydrophilic surfaces that make them an ideal candidate to be incorporated thin-film nanocomposite (TFN) membranes. In this study, we modified the CNCs via acetylation (ACNCs) reduce their hydrophilicity reaction L-cysteine (CysCNCs) impart f...

Journal: :npj clean water 2023

Abstract A wide range of chemicals was measured in different types drinking water and urine samples through target non-target screening (NTS) to estimate human exposure. Tap collected from 42 locations Barcelona (August–October/2020, May/2021), tap filtered with domestic activated carbon filters (AC, N = 6) reverse osmosis (RO, 5), commercial bottled ( 10), 39) were included. 35 per- polyfluoro...

Journal: :Desalination 2021

A main reverse osmosis (RO) limitation is the operational costs (including energy filtration costs), which are significantly affected by and expense of membrane maintenance. Both influent characteristics, including feedwater temperatures (T), electrical conductivity (EC), recovery set points. fuzzy logic advanced control system optimizes RO considering EC T as input values, setpoint a action. V...

Journal: :Comptes Rendus Chimie 2021

The rejection of anti-inflammatory drugs by membranes has shown paramount importance in separation membrane processes such as nanofiltration and reverse osmosis (NF/RO) for pharmaceutical industries. Therefore, the main objective this paper is to use support vector machine (SVM) artificial neural network (ANN) model rejections NF/RO using 300 experimental data points gathered from literature. B...

سید حسین هاشمی محمدرضا دباغیان,

در این تحقیق یک روش سیستماتیک برای انتخاب بهترین گزینه در تصفیه فاضلاب صنایع آبکاری که حاوی فلزات سنگین  می­باشد، معرفی شده است. بدین صورت که در این روش پس از استفاده از نظرات کارشناسان،مشاوران و آبکاران به کمک روش تحلیل سلسله مراتبی[1](AHP) بهتربن گزبنه انتخاب شده است. این تحقیق در محدوده شهر تهران انجام گرفته است که در آن چهار گزینه برای تصفیه فاضلاب حاوی فلزات سنگین   (رسوب­دهی شیمیایی[2]، ت...

Journal: :Desalination 2022

Couplings of forward osmosis (FO) with reverse (RO) or membrane distillation (MD) are investigated at the water-energy nexus. The treatment low and hypersaline feed solutions was assessed, followed by discussion most effective hybrid scheme for different conditions. Two FO configurations presented, suggesting potential applicability a versatile multi-stage approach treating low-saline wastewate...

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