The application of Polyaluminium Ferric Chloride for Turbidity and Color Removal from Low to Medium Turbid Water
Authors
Abstract:
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 medium turbid water . Materials & Methods: For evaluation of the coagulation procedure, conventional Jar Test apparatus was used. Low to medium synthetic turbid water (10 to 60 NTU) was prepared by kaolin and river bed soli. Then all samples were analyzed for residual turbidity, true color, UV absorbance, residual Aluminium (Al 3+ ), Iron (Fe 2+ ), and residual heavy metals like Arsenic, Lead, Nickel and Chromium. Results: Optimum dose of PAFC for first, second, third and fourth sample with initial turbidity of 10, 20, 40 and 60 NTU was 7, 10, 11 and 11 mg/L respectively. After coagulation with optimum dose, residual turbidity in treated water was 0.4, 0.34, 0.28 and 0.3 NTU respectively. Also color removal efficiency for mentioned samples was 97%, 98%, 99% and 99% respectively at optimum dose PAFC. Optimum pH for maximum removal with PAFC was 7.8 (pH range 7.5 to 8). Conclusions: Polyaluminium ferric chloride has a good efficiency for removal of turbidity, color and organic matter. It can be select as a new coagulant for water treatment plants. Also residual Aluminium, Iron and some heavy metals (chromium, lead, cadmium and nickel) in treated water was investigated. Their concentration in treated water didn’t have any adverse effect on consumer health according to their standards in EPA.
similar resources
Treatment of Highly Turbid Water by Polyaluminum Ferric Chloride (PAFCL)
Background & Aims of the Study: In some situation like rainfall seasons raw water become very turbid so it affected the water treatment plant processes and quality of produced water. Treatment of very high turbid water has some concerns like precursors for disinfection by-products and very loading rate of particle on filter's media and consequently increases in water consumptio...
full textComparison 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. ...
full textNitrate 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...
full textcomparison 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. m...
full textthe role of russia in transmission of energy from central asia and caucuses to european union
پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولnitrate 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,...
full textMy Resources
Journal title
volume 3 issue 1
pages 12- 20
publication date 2014-09
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023