Environmental Health Engineering and Management Journal
Environmental Health Engineering and Management Journal
Environ. Health Eng. Manag.
Medical Sciences
http://ehemj.com
1
admin
2423-3765
2423-4311
8
7
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8888
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en
jalali
1398
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gregorian
2019
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online
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fulltext
en
Comparison ability of algae and nanoparticles on nitrate and phosphate removal from aquaculture wastewater
تخصصي
Special
مقاله اصیل
Original Article
<div style="text-align: justify;"><span class="fontstyle0">Background: </span><span class="fontstyle2">Aquaculture wastewater contains high levels of phosphate and nitrate. The reuse of this water requires standards beyond the secondary standards to eliminate more organic pollutants from aquaculture effluents. In this research, the removal of these pollutants from wastewater using Chlorella vulgaris and Fe</span><span class="fontstyle2" style="font-size:5pt;">3</span><span class="fontstyle2">O</span><span class="fontstyle2" style="font-size:5pt;">4 </span><span class="fontstyle2">nanoparticles in the reactor space was investigated.</span><br>
<span class="fontstyle0">Methods: </span><span class="fontstyle2">This study was conducted on fish farms effluent in the laboratory system. For this purpose, a 5-L semi-industrial reactor with a mixer blade, porous plate, and a compressor was designed. </span><span class="fontstyle3">Chlorella vulgaris</span><span class="fontstyle2"> samples were collected from the natural environment and cultured in the laboratory environment. Also, Fe</span><span class="fontstyle2" style="font-size:5pt;">3</span><span class="fontstyle2">O</span><span class="fontstyle2" style="font-size:5pt;">4 </span><span class="fontstyle2">nanoparticles were prepared from Iranian Nano Pishgaman Company to make the desired solution. During the experiment (3 weeks), samples were taken weekly (in one phase) from the effluent. Dissolved oxygen (DO), pH, nitrate (NO</span><span class="fontstyle2" style="font-size:5pt;">3</span><span class="fontstyle2">), and phosphate (PO</span><span class="fontstyle2" style="font-size:5pt;">4</span><span class="fontstyle2">) factors from the influent and effluent of the farms were measured. The statistical data were analyzed using SPSS version 21 and Excel 2013.</span><br>
<span class="fontstyle0">Results: </span><span class="fontstyle2">The amounts of nitrate and phosphate were decreased by about 80.76 and 80.55% in the biological reactor, whereas these amounts were 70.52 and 70.48% in the nanoparticle reactor, respectively. Also, there were significant differences in the amounts of NO</span><span class="fontstyle2" style="font-size:5pt;">3 </span><span class="fontstyle2">and PO</span><span class="fontstyle2" style="font-size:5pt;">4 </span><span class="fontstyle2">between the control treatment and weekly treatment (</span><span class="fontstyle3">P </span><span class="fontstyle2">< 0.05).</span><br>
<span class="fontstyle0">Conclusion: </span><span class="fontstyle2">Based on the results, both reactors were able to reduce nitrate and phosphate from aquaculture wastewater, but the efficiency of the biological reactor was higher than that of the nanoparticle reactor.</span></div>
Nitrate, Phosphate, Fe3O4 nanoparticle, Chlorella vulgaris, Biological refinement
171
177
http://ehemj.com/browse.php?a_code=A-10-1-144&slc_lang=en&sid=1
Majid
Askari Hesni
mahesni@gmail.com
10031947532846005544
10031947532846005544
Yes
Corresponding author: Research and Technology Institute of Plant Production, Shahid Bahonar University of Kerman, Kerman, Iran
Seyed Aliakbar
Hedayati
hedayati@gau.ac.ir
10031947532846005545
10031947532846005545
No
Department of Aquatic Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Amir
Qadermarzi
a.qadermarzi@gmail.com
10031947532846005546
10031947532846005546
No
Department of Aquatic Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Mojtaba
Pouladi
mojtabafishery1987@gmail.com
10031947532846005547
10031947532846005547
No
Department of Aquatic Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Somayeh
Zangiabadi
majidask@gmail.com
10031947532846005548
10031947532846005548
No
Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
Nabat
Naqshbandi
saadatfar.amir@gmail.com
10031947532846005549
10031947532846005549
No
Department of Biology, Faculty of Sciences, Payame Noor University, Oshnavieh, West Azarbaijan, Iran