Comparison of Moringa stenopetala seed extract as a clean coagulant with Alum and Moringa stenopetala-Alum hybrid coagulant to remove direct dye from Textile Wastewater

In this study, the efficiency of Moringa stenopetala seed extract was compared with alum and M. stenopetala -alum hybrid coagulant to remove Direct Red 23 azo dye from textile wastewater. The effects of parameters such as pH, coagulant dose, type of salt used for the extraction of coagulant and init...

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Veröffentlicht in:Environmental science and pollution research international 2016-08, Vol.23 (16), p.16396-16405
Hauptverfasser: Dalvand, Arash, Gholibegloo, Elham, Ganjali, Mohammad Reza, Golchinpoor, Najmeh, Khazaei, Mohammad, Kamani, Hossein, Hosseini, Sara Sadat, Mahvi, Amir Hossein
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container_end_page 16405
container_issue 16
container_start_page 16396
container_title Environmental science and pollution research international
container_volume 23
creator Dalvand, Arash
Gholibegloo, Elham
Ganjali, Mohammad Reza
Golchinpoor, Najmeh
Khazaei, Mohammad
Kamani, Hossein
Hosseini, Sara Sadat
Mahvi, Amir Hossein
description In this study, the efficiency of Moringa stenopetala seed extract was compared with alum and M. stenopetala -alum hybrid coagulant to remove Direct Red 23 azo dye from textile wastewater. The effects of parameters such as pH, coagulant dose, type of salt used for the extraction of coagulant and initial dye concentration on dye removal efficiency were investigated. Moreover, the existing functional groups on the structure of M. stenopetala coagulant (MSC) were determined by Fourier transform infrared spectroscopy, and the morphology of sludge produced by MSC, alum, and hybrid coagulant was characterized by scanning electron microscopy. Ninhydrin test was also used to determine the quantity of primary amines in the MSC and Moringa oleifera coagulant (MOC). According to the results, with increasing the coagulant dose and decreasing the initial dye concentration, dye removal efficiency has increased. The maximum dye removal of 98.5, 98.2, and 98.3 % were obtained by using 240, 120, and 80 mg/L MSC, alum and hybrid coagulant at pH 7, respectively. The results also showed MSC was much more effective than MOC for dye removal. The volume of sludge produced by MSC was one fourth and half of those produced by alum and hybrid coagulant, respectively. Based on the results, hybrid coagulant was the most efficient coagulant for direct dye removal from colored wastewater.
doi_str_mv 10.1007/s11356-016-6708-z
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The effects of parameters such as pH, coagulant dose, type of salt used for the extraction of coagulant and initial dye concentration on dye removal efficiency were investigated. Moreover, the existing functional groups on the structure of M. stenopetala coagulant (MSC) were determined by Fourier transform infrared spectroscopy, and the morphology of sludge produced by MSC, alum, and hybrid coagulant was characterized by scanning electron microscopy. Ninhydrin test was also used to determine the quantity of primary amines in the MSC and Moringa oleifera coagulant (MOC). According to the results, with increasing the coagulant dose and decreasing the initial dye concentration, dye removal efficiency has increased. The maximum dye removal of 98.5, 98.2, and 98.3 % were obtained by using 240, 120, and 80 mg/L MSC, alum and hybrid coagulant at pH 7, respectively. The results also showed MSC was much more effective than MOC for dye removal. 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The effects of parameters such as pH, coagulant dose, type of salt used for the extraction of coagulant and initial dye concentration on dye removal efficiency were investigated. Moreover, the existing functional groups on the structure of M. stenopetala coagulant (MSC) were determined by Fourier transform infrared spectroscopy, and the morphology of sludge produced by MSC, alum, and hybrid coagulant was characterized by scanning electron microscopy. Ninhydrin test was also used to determine the quantity of primary amines in the MSC and Moringa oleifera coagulant (MOC). According to the results, with increasing the coagulant dose and decreasing the initial dye concentration, dye removal efficiency has increased. The maximum dye removal of 98.5, 98.2, and 98.3 % were obtained by using 240, 120, and 80 mg/L MSC, alum and hybrid coagulant at pH 7, respectively. The results also showed MSC was much more effective than MOC for dye removal. 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subjects Alum Compounds - chemistry
Amines
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Azo dyes
Carcinogens
Color removal
Coloring Agents - chemistry
Dyes
Earth and Environmental Science
Ecotoxicology
Efficiency
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fourier transforms
Industrial Waste
Infrared spectroscopy
Moringa - chemistry
Moringa oleifera
Moringa stenopetala
Oxidation
Pollutants
Potassium
Research Article
Research centers
Scanning electron microscopy
Seeds
Seeds - chemistry
Sludge
Studies
Textile industry
Textile industry wastewaters
Textiles
Waste Disposal, Fluid - methods
Waste Water - analysis
Waste Water - chemistry
Waste Water Technology
Wastewater
Water Management
Water Pollutants, Chemical - chemistry
Water Pollution Control
Water Purification - methods
Water treatment
title Comparison of Moringa stenopetala seed extract as a clean coagulant with Alum and Moringa stenopetala-Alum hybrid coagulant to remove direct dye from Textile Wastewater
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