en تخصصي Special مقاله اصیل Original Article <div style="text-align: justify;"><span class="fontstyle0">Background: </span><span class="fontstyle2">Constructed wetlands are systems designed based on the utilization of natural processes, including vegetation, soil, and their associated microbial assemblage to assist in treating different types of wastewater.</span><br> <span class="fontstyle0">Methods: </span><span class="fontstyle2">Two local Appalachian plants (</span><span class="fontstyle3">Louis latifolia </span><span class="fontstyle2">and </span><span class="fontstyle3">Phragmites australis</span><span class="fontstyle2">) were planted into smallscale constructed wetlands to treat domestic wastewater in the North of Iran. Te influent wastewater and the efuent from each wetland were sampled daily for 120 days. Experiments were conducted based on the mean &plusmn; standard deviation (SD) by analysis of variance (ANOVA).</span><br> <span class="fontstyle0">Results: </span><span class="fontstyle2">It was found that nitrate, phosphate, fecal and total coliforms were reduced by 84.4%, 94.4%, 96.3%, 93.9% for </span><span class="fontstyle3">P. australis </span><span class="fontstyle2">and 73.3%, 64.0%, 94.4%, 92.1% for </span><span class="fontstyle3">L. latifolia</span><span class="fontstyle2">, respectively.</span><br> <span class="fontstyle0">Conclusion: </span><span class="fontstyle2">According to the results, by using the HF-CW technology with </span><span class="fontstyle3">L. latifolia </span><span class="fontstyle2">and </span><span class="fontstyle3">P. </span><span class="fontstyle2">australis plants, the treated wastewater fully meets the wastewater discharge parameters of WHO standards.</span></div> Nitrate, Phosphate, Wetland, Wastewater treatment, Iran 105 111 http://ehemj.com/browse.php?a_code=A-10-407-8&slc_lang=en&sid=1 Laleh R. Kalankesh lalehkalankesh@gmail.com 10031947532846005290 10031947532846005290 No Department of Environmental Health Engineering, School of Health and Health Sciences Research Center, Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran Susana Rodríguez-Couto srodriguez@cit.es 10031947532846005291 10031947532846005291 No Ceit, Paseo Manuel de Lardizábal 15, 20018, San Sebastian, Spain, Universidad de Navarra, Tecnun, Paseo Manuel de Lardizábal 13, 20018, San Sebastian, Spain IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013, Bilbao, Spain Yousef Dadban Shahama dr.udadban@goums.ac.ir 10031947532846005292 10031947532846005292 Yes Corresponding author: Environmental Health Research Center, Department of Environmental Health Engineering, Faculty of Health, Golestan University of Medical Sciences, Gorgan, Iran Hossein Ali Asgarnia aygoyo@yahoo.com 10031947532846005293 10031947532846005293 No Department of Environmental Health Engineering, Babol University of Medical Sciences, Babol, Iran