APPLICATION OF PISTACIA ATLANTICA (BANEH) SEED EXTRACT AS A NATURAL COAGULANT FOR REACTIVE RED-120 REMOVAL FROM AQUEOUS ENVIRONMENTS

作者：Bazrafshan Edris; Alizadeh Mostafa; Mahvi Amir Hossein^*

来源：Fresenius Environmental Bulletin, 2013, 22(3): 728-733.

• Reactive Red-120 removal
• Pistacia atlantica
• Coagulation
• Natural coagulants

In the present study, Pistacia atlantica seed extract ability in a batch system to remove Reactive Red-120 from aqueous solutions was investigated. The effects of major operating variables, such as coagulant dose (0.05-4 ml L-1), initial dye concentration (20, 40, 80, 100, 150 and 200 mg/L) and pH (2-12), were investigated. The optimum pH for Reactive Red-120 removal by coagulation using Pistacia atlantica seed extract was 12 with a coagulant dose 0.1 ml/L, and the highest removal was found to be 58.2, 60.17, 59.89, 62.31, 69.26 and 70.04% at initial dye concentrations of 20, 40, 80, 100, 150 and 200 mg/L, respectively, as a result of precipitation, co-precipitation and adsorption mechanisms. Also, turbidity addition to samples with various dye concentrations improved dye removal efficiency. According to the achieved results, it was defined that Pistacia atlantica seed extract not only is an inexpensive coagulant, but also a quite effective factor in removal of Reactive red-120 from aqueous environments.

• 出版日期2013