nitrate removal from water using alum and ferric chloride: a comparative study of alum and ferric chloride efficiency
نویسندگان
چکیده
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, two coagulants, alum and ferric chloride, were compared for their efficiency in removing nitrate in a conventional water treatment system. the removal process was done in a batch system (jar test) to examine the effects of coagulant dosages and determine the conditions required to achieve optimum results. results: the results revealed that ferric chloride at an initial dose rate of 4 mg/l reduced nitrate concentration from 70 mg/l to less than the world health organization (who) guideline value (50 mg/l n-no3). however, the removal efficiency of alum was not salient to significant nitrate reduction. conclusion: in conclusion, ferric chloride was more effective than alumin removing no-3, even in common dosage range, and can be considered a cost-effective and worthy treatment option to remediate nitrate-polluted water. furthermore, the removal of nitrate by coagulation can be simple and more economical than other treatment alternatives.
منابع مشابه
Nitrate removal from water using alum and ferric chloride: A comparative study of alum and ferric chloride efficiency
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...
متن کاملEvaluation of Ferric Chloride and Alum Efficiencies in Enhanced Coagulation for Toc Removal and Related Residual Metal Concentrations
Although the removal of colloidal particles continues to be an important reason for using coagulation, a newer objective, the removal of natural organic matter (NOM) to reduce the formation of disinfection by-products (DBPs), is growing in importance. Enhanced coagulation is thus introduced to most water utilities treating surface water. Bench-scale experiments were conducted to compare the eff...
متن کاملComparison of Water Turbidity Removal Efficiencies of Descurainia Sophia Seed Extract and Ferric Chloride
Background: Turbidity removal using inorganic coagulants such as iron and aluminum salts in water treatment processes causes environmental and human health concern. Historically, the use of natural coagulant to purify turbid water has been practiced for a long time. Recent research indicates that Descurainia Sophia seed can be effectively used as a natural coagulant to remove water turbidity. ...
متن کاملEffect of ferric sulfate and ferric chloride in controlling liver bleeding an animal model study
Introduction: Controlling parenchymal hemorrhage, especially in liver, is still one of the challenges surgeons face with when they try to save the patients’ lives despite improvements in surgical procedures. There is a research contest between the researchers in this field to introduce more effective methods. This study aimed to compare the hemostatic effect of ferric sulfate and ferric chlo...
متن کاملThe application of Polyaluminium Ferric Chloride for Turbidity and Color Removal from Low to Medium Turbid Water
Background & Aims of the Study: Coagulation is an essential process for the removal of fine particulate matter in water treatment. Polyaluminium ferric chloride (PAFC) is a composite inorganic polymer of Aluminium and ferric salt. This study was conducted to find out the optimum coagulation conditions for the removal of turbidity, color and organic matter (UV absorbance) in low to mediu...
متن کاملبررسی امکان حذف اسید هیومیک با نمکهای آهن و آلومینیوم از منابع آبی در شرایط انعقاد متداول
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  ...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
environmental health engineering and managementجلد ۳، شماره ۲، صفحات ۶۹-۷۳
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023