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:: Volume 11, Issue 4 (3-2018) ::
3 2018, 11(4): 13-27 Back to browse issues page
Utilizing Continuous Culture System of Microalgae )Scenedesmus obliquus( For Implied Biological Treatment of Municipal Wastewater
Aref Pirbeigi , Seyyed Abbas Hosseini , Rasul Ghorbani , Hassan Rezaei , Ordog Vince
student 1- Gorgan University of Agricultural Sciences & Natural Resources
Abstract:   (449 Views)

In the current study nutrient removal capability from municipal sewage by microalgae Scenedesmus obliquus and also the effects of used concentrations of sewage on algal growth, chlorophyll a content, BOD5, COD and pH of medium were investigated. For this reason, after culturing the algae Scenedesmus obliquus in a batch system and calculation of its specific growth rate, this species was cultivated in four concentrations (0, 25, 50 and 75%) of municipal sewage for 28 days in a continuous system. During the experiment, permanent lighting and a constant temperature of 24±1˚C were applied. All measurements except algae counting were done every two days. Based on the results, Specific growth rate in this study was calculated as 0.27 per day. PO4-P, NO3-N, NH4-N, COD and BOD5 values showed a significant decrease at the end of experiment. With increasing the concentration, chlorophyll a content and algal cells number showed a significant increase. Experimental results indicated that treatment with concentration of 75% had the best performance in phosphate and nitrate removal. It can be concluded that applied algae has a useful role in nutrient removal from wastewater using continuous system

Keywords: Municipal wastewater- Treatment- Continuous system- Scenedesmus obliquus- Phosphate- Nitrate
Full-Text [PDF 984 kb]   (120 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/11/15 | Accepted: 2017/05/1 | Published: 2017/11/27
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Pirbeigi A, Hosseini S A, ghorbani R, Rezaei H, Vince O. Utilizing Continuous Culture System of Microalgae )Scenedesmus obliquus( For Implied Biological Treatment of Municipal Wastewater. 3. 2018; 11 (4) :13-27
URL: http://aqudev.liau.ac.ir/article-1-425-en.html


Volume 11, Issue 4 (3-2018) Back to browse issues page
نشریه توسعه آبزی پروری Journal of Aquaculture Development
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