@article{paperid:1057776,
author = {Yazdani, Vahid and Banejad, Hossein and Mansor Gholizade},
title = {Treatment of urban sewage duration coagulation process with use natural materials},
journal = {Journal of Engineering and Applied Sciences},
year = {2009},
volume = {4},
number = {5},
month = {January},
issn = {1816-949x},
pages = {310--317},
			numpages = {7},
keywords = {Sewage purification; plantago major; alyssum SP; plantago psyllium; zizi phora clinopodioides; aluminium sulfate.},
}