نتایج جستجو برای: most of coagulants of ferric chloride fecl3

تعداد نتایج: 21177863  

آقاپور, علی احمد, جهانی, حامد, محمدی, امیر, نعمتی, سپیده, کریم‌زاده, سیما,

Background & Aims: Humic acid is a major agent in trihalomethanes (THMs) formation during chlorination process, which are known as carcinogens. The aim of this study were to investigate the removal of humic acid by three coagulants including PACl, alum and ferric chloride from water sources and their  effect on zeta potencial. Materials & Methods: This study was conducted &nbsp...

2014
Elçin Güneş

The aim of this study was to characterize landfill leachate of Çorlu that was heavily industrialized, and to examine the application of coagulation-flocculation and adsorption for the treatment of this leachate. This deposited area is non-regulated and municipal and industrial wastes are deposited uncontrollably. The experiments were conducted to investigate the combined process of coagulation-...

Journal: :تحقیقات نظام سلامت 0
امیرحسین محوی استادیار،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران محمد هادی دهقانی استادیار،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران قاسم کیانی دانشجوی کارشناسی ارشد،گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران مرتضی بارانی کارشناس شیمی، سازمان مدیریت پسماند، شهرداری اصفهان، اصفهان، ایران

background: untreated leachate is being discharged into the environment in many countries worldwide. leachate treatment methods have not been unified so far due to the variable composition of leachate. moreover, the lack of appropriate treatment and disposal of leachate causes environmental pollution. this study aimed to compare removal efficiency of chemical oxygen demand (cod) and total suspe...

2013
Sumona Mukherjee Agamuthu Pariatamby Jaya Narayan Sahu Bhaskar Sen Gupta

BACKGROUND: In this paper, the efficiency of Guar gum as a biopolymer has been compared with two other widely used inorganic coagulants, ferric chloride (FeCl3) and aluminum chloride (AlCl3), for the treatment of effluent collected from rubber washing tanks of a rubber concentrate industry. Settling velocity distribution curves were plotted to demonstrate the flocculating effect of FeCl3, AlCl3...

2010
Akbar Baghvand Abdolreza Karbassi

Problem statement: Turbid waters, containing colloidal particles, are normally treated by coagulation-flocculation followed by clarification. Ferric chloride and alum, which are the most common types of coagulants in water treatment plants of Iran as well as many other countries, were investigated with the aim of determining their capabilities to reduce turbidity of drinking water. Turbidity wa...

Journal: :jundishapur journal of health sciences 0
afshin takdastan department of environmental health engineering, school of health and environmental technology research center, jundishapur university of medical sciences, ahvaz, ir iran azadeh eslami department of environmental engineering, sazabpardazan consultant engineering company, ahvaz, ir iran mohammad mehdi hazavehi department of health education. research center for health sciences and school of public health, hamadan university of medical sciences, hamadan, ir iran

the removal of organic precursors of disinfection by-products (dbps), i.e. natural organic matter (nom), prior to disinfection is considered as the most effective approach to minimise the formation of dbps. trihalomethanes (thms) as the main group of dbps are categorized and considered to have the potentiality of increasing the rate of liver, kidney and cns adverse effects. this study which pre...

2016
Hangzhou Xu Haiyan Pei Hongdi Xiao Yan Jin Xiuqing Li Wenrong Hu Chunxia Ma Jiongming Sun Hongmin Li

This is the first study to systematically investigate the different behaviors of Microcystis aeruginosa in the sludges formed by AlCl3, FeCl3, and polymeric aluminium ferric chloride (PAFC) coagulants during storage. Results show that the viability of Microcystis aeruginosa in PAFC sludge was stronger than that of cells in either AlCl3 or FeCl3 sludge after the same storage time, while the cell...

Journal: :environmental health engineering and management 0
ali ahmad aghapour environmental health engineering, department of environmental health engineering, school of health, urmia university of medical sciences, urmia, iran sepideh nemati environmental health engineering, student research committee, school of health, urmia university of medical sciences, urmia, iran amir mohammadi environmental health engineering, student research committee, school of health, urmia university of medical sciences, urmia, iran heshmatollah nourmoradi environmental health engineering, department of environmental health engineering, school of health, ilam university of medical sciences, ilam, iran sima karimzadeh environmental health engineering, student research committee, school of health, urmia university of medical sciences, urmia, iran

background: nitrate is an acute and well-known hazardous contaminant, and its contamination of water sources has been a growing concern worldwide in recent years. this study evaluated the feasibility of nitrate removal from water using the traditional coagulants alum and ferric chloride with lower concentrations than those used in the conventional coagulation process. methods: in this research,...

Journal: :international journal of environmental research 2010
h. abdul aziz a. omran w. r. zakaria

heavily polluted wastewater from sanitary landfill presents the leachate characteristics that need special treatment and disposal. concentration of chemical oxygen demand (cod), ammonia nitrogen (nh3-n), heavy metal and other pollutant content are often larger than standard requirement after applying biological/physico-chemical treatment.thus, the combination of coagulationflocculation and chem...

ژورنال: طلوع بهداشت یزد 2014
دهقانی , محمد هادی, محوی, امیر حسین, نبی زاده, رامین, کیانی, قاسم,

Introduction: Untreated leachate is being discharged into the environment in many countries worldwide. Leachate treatment methods have not been unified so far due to variable composition of leachate in different sites. Lack of control as well as disregarding leachate treatment and disposal of it can cause environmental pollution. This study aimed to investigate the Coagulants' effect on the COD...

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