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Design of dissolved air flotation (DAF) process for treating dyes-contaminated wastewater | ||
| Caspian Journal of Environmental Sciences | ||
| دوره 20، شماره 2، تیر 2022، صفحه 315-322 اصل مقاله (1.06 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22124/cjes.2022.5563 | ||
| نویسندگان | ||
| Zainab A. Nasir* ؛ Younis Swadi Tlaiaa؛ Ahmed Hassoon Ali | ||
| Environmental Engineering Department, College of Engineering, Mustansiriyah University, Iraq | ||
| چکیده | ||
| The effect of using natural coagulant Aloe Vera with alum Al2 (SO4)3 was examined to remove three reactive dyes: Reactive Blue (RB), Reactive Red (RR) and Reactive Yellow (RY) from simulated textile wastewater in single and blended (ternary) systems by utilizing dissolved air flotation system (DAF) combined with the coagulation + flocculation + flotation in continuous system. This combining process showed excellent removal efficiency. The process was operated under flow rate of, 100 L h-1 and duration of 30 min at 15 mg L-1 dye concentrations; pH value was fixed at 8, and the dose of alum + AV was fixed at 10 mg L-1. DAF system was operated once using alum + AV and then using Poly aluminium chloride (PAC; AlCl3.6H2O) with dose of 10 mg L-1 as flocculant in combination with coagulant. The removal efficiency reached to 95, 93 and 92% for RR, RB and RY respectively for single system without flocculant. By using flocculant with coagulant, the removal efficiency was excellent and was 97, 96 and 95% for RR, RB and RY, respectively. Thus, combined treatment processes offer many advantages for potential treatment of sewage and industrial wastewater such as flexibility, time and coagulant/flocculant savings as well as high quality treated water. | ||
| کلیدواژه‌ها | ||
| Dyes؛ Coagulant؛ Flocculent Dissolved Air Flotation؛ Wastewater | ||
| مراجع | ||
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Ahmed, HA, Younis, ST & Zainab, AN 2019, Sustainable used of natural coagulants aid for enhancing the performance of alum to treat turbid water. ICSET Journal, pp. 1-9.
AL Degs, Y, El Sheikh, AH, Al Gouti, MA & Sunjuk, MS 2008, Determination of commercial colorants in different water bodies using partial least squares regression(PLS). Jordan Journal of Chemistry, 3: 321-336.
Aljeboree, AM, Sahib, IJ, Jasim, LS & Alkaim, AF 2021, Introducing a novel chemical method of treatment for dye removal: removal of maxillon blue and direct yellow from aqueous solution. Caspian Journal of Environmental Sciences, 19: 673-684.
Allen, SJ & Koumanova, B 2005, Decolonization of water/wastewater using adsorption (Review). Journal of the University of Chemical Technology and Metallurgy, 40: 175-192.
Alshamri, MJ, Aljeboree, AM, Alqaragully, AB & Alkaim, MF 2021, Removal of toxic textile dyes from aqueous solution through adsorption onto coconut husk waste: Thermodynamic and isotherm studies. Caspian Journal of Environmental Sciences, 19: 513-522.
De Alba PL, Martinze, LL, Rodriguez, LI & Hernandez, JA 1997, Extraction of sunset yellow and tartrazine and determination by bivariate calibration and derivative spectrophotometry. Analyst, 122: 1575-1579.
Ekrami, E & Okazi, M 2010, Analysis of dye concentration in binary dye solution using derivative spectophotometric techniques, World Applied Sciences Journal, 11: 1025–1034.
Garg, VK, Kumar, R & Gupta, R 2004, Removal of malachite green dye from aqueous solution by adsorption using agro-industry waste: a case study of Prosopis cineraria. Dyes and Pigments, 62: 1-10.
Giwa, SO, Giwa, A, Ayangunna, RR 2016, Coagulation-flocculation treatment of industrial wastewater using tamarind seed powder. International Journal Chemtech Research, 9: 771-780.
Iwuozor, K.O 2019, Cigarette butts (secondary microplastic) adsorption of heavy metals in solution. International Journal of Engineering, Environment and Materials Journal, 1: 9-24.
Jasim, LS & Aljeboree, AM 2021, Hydrogels in the removal of industrial pollution: Adsorption characteristics for the removal of a toxic dye from aqueous solutions. Caspian Journal of Environmental Sciences, 19: 789-799
Kadirvelu, K, Kavipriya, S, Karthika, C, Radhika, M, Vennilamani, N & Pattabhi, S 2003, Utilization of various agricultural wastes activated carbon preparation and application for the removal of dyes and metal ions from aqueous solutions. Bioresource Technology, 87: 129-132.
Kang, Q 2007, Residual color profiles of simulated reactive dyes wastewater in flocculation. Journal Separation and purification Technology, 57: 356-365.
Olasehinde, EF, Abegunde, SM & Adebayo, MA 2020, Adsorption isotherms, kinetics and thermodynamic studies of methylene blue dye removal using Raphia taedigera seed activated carbon. Caspian Journal of Environmental Sciences, 18: 329-344
Puganeshwary, P, Mohd, NA, Hamidi, AA & Mohamad, FM 2010, Application of dissolved air flotation (DAF) in semi-aerobic leachate treatment. Chemical Engineering Journal, 157: 316-322.
Rao, LN 2015, Coagulation and flocculation of industrial wastewater by chitosan. International Journal of Engineering Applied Sciences and Technology, 2: 50-52.
Stepova, K, Gumnitskyy, Y & Maquarrie, D 2009, Mechanism and mathematical model of chemisorption on modified bentonite. Journal of Chemistry and Chemical Technology, 3: 169-172.
Yu li, Y, Yue zhong, W, Xiao ying, L & Si zhen, L 2006, Treatment of wastewater from dye manufacturing industry by coagulation. Journal of Zhejiang University Science, 7: 340- 344. | ||
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