نتایج جستجو برای: 254 and doc removal

تعداد نتایج: 16850949  

Fatemeh Sahlabadi, Mohammad Hassan Ehrampoush, Mohammad Taghi Ghaneian, Monireh Kheirkha, Reza Amraei, Tahereh Jasemizad,

Introduction: Humic acids have adverse effects on the water quality, then should be removed from water resources. The aim of this study was to evaluate the effect of nitrate as a radical scavenger for removal of humic acid from aqueous solutions by electron beam irradiation. Materials and Methods: In this study, after preparation of stock humic acid solution in alkaline condition, different con...

Journal: :Acta Crystallographica Section F Structural Biology and Crystallization Communications 2008

Journal: :Separations 2022

Wastewater reuse is essential for sustainable water management. However, it requires tertiary treatment within the plant to ensure suitable quality. This project aims investigate comparative performance of conventional (sand filtration) against membrane filtration technology demonstrate viability wastewater reuse. Sand along with two filtrations, Nano Filtration (NF) and Reverse Osmosis (RO), w...

Journal: :مجله تحقیقات سلامت 0
محمدتقی قانعیان mohammad taghi ghaneian محمدحسن احرامپوش mohammad hassan ehrampoush طاهره جاسمی زاد tahereh jasemizad منیره خیرخواه monireh kheirkha رضا امرائی reza amraei فاطمه سهل آبادی fatemeh sahlabadi

introduction: humic acids have adverse effects on the water quality, then should be removed from water resources. the aim of this study was to evaluate the effect of nitrate as a radical scavenger for removal of humic acid from aqueous solutions by electron beam irradiation. materials and methods: in this study, after preparation of stock humic acid solution in alkaline condition, different con...

2001
P. DROGUI

Hydrogen peroxide was produced by direct current electrolysis using two electrodes only, a carbon felt cathode and a dimensional stabilised anode (titanium coated with RuO2), without adding any chemical. The required oxygen was supplied by water oxidation and by transfer from the atmosphere. The intensity should be maintained under a maximum value to avoid peroxide reduction. High peroxide prod...

Journal: :تحقیقات نظام سلامت 0
بیژن بینا استاد، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران افشین ابراهیمی استادیار، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران امیر محمدی انشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه بهداشت محیط، دانشکده بهداشت و مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمد مهدی امین دانشیار، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حمیدرضا پورزمانی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، دانشکده بهداشت و مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: natural organic compounds are known as precursors in the formation of disinfection byproducts. the aim of this study was to evaluate of effect of modified cationic surfactant nano zeolite in the removal of humic acid (ha) from water. materials and methods: nano zeolite (clinoptilolite) was modified by cationic surfactant solution hexadecyltrimethylammonium bromide (hdtma-br), in dos...

Ali Dehghani, Masoumeh Tabatabaee, Mohammad Hassan Ehrampoush, Mohammad Taghi Ghaneian, Pouran Morovati,

Introduction: Humic acid (HA) is one the original disinfection byproducts processors in water treatment. So, removing it is necessary before water chlorination. In the present study, photodegredation of humic acid in water using Ag/ZnO nano particle under UVc irradiation in batch system was investigated. Material and Methods: Photocatalytic study was carried out to evaluate the effect of UVc (...

Journal: : 2022

Titanium is the ninth most abundant element in earth's crust and usually found minerals such as rutile, ilmenite, sphene. Adsorption, photocatalysis, advanced oxidation processes are used water wastewater treatment. Among these processes, photocatalysis has emerged a safe, efficient, environmentally friendly treatment process for of with high pollutant content. dioxide (TiO2) widely photocataly...

Journal: :Bioresource technology 2013
Duksoo Jang Yuhoon Hwang Hangsik Shin Wontae Lee

This study investigated the effects of high salinity on the performance and membrane fouling of membrane bioreactor (MBR) with saline wastewater. Synthetic wastewaters containing 5-20 g/L salts (NaCl) were treated in identical lab-scale (7 L) MBRs monitoring removals of dissolved organic carbon (DOC) and ammonia. Increase in salt concentrations did not significantly change the removal efficienc...

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