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Impact of Microalgae in Domestic Wastewater Treatment: A Lab-Scale Experimental Study | ||
Pollution | ||
دوره 9، شماره 1، فروردین 2023، صفحه 211-221 اصل مقاله (3.06 M) | ||
نوع مقاله: Original Research Paper | ||
شناسه دیجیتال (DOI): 10.22059/poll.2022.344705.1513 | ||
نویسندگان | ||
Nandini Moondra* ؛ Namrata Jariwala؛ Robin Christian | ||
Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, P.O. Box 395007, Surat, India | ||
چکیده | ||
In most developing nations, municipal wastewater treatment is limited to aerobic secondary treatments, expensive and ineffective in removing nutrients from treated effluents before discharge, resulting in eutrophication and imbalance in receiving bodies. As a result, the effectiveness of Chlorella vulgaris for primarily treated wastewater collected from a sewage treatment plant during an 8-hour detention time was investigated in this study. Microalgae have been found to efficiently remove organics and nutrients to levels far below the desired limit in the present research. After algal treatment concentration of COD, phosphate and ammonia reduced to 12.43 mg/L (93.75%), 0.04 mg/L (98.40%) and below detectable limit (100%) respectively. In addition, remarkable reduction was found in solids (TSS, TS and TDS) and EC concentration. The use of microalgae resulted in an increase in DO concentration. As a result, introducing Chlorella vulgaris into a wastewater treatment system can lower nutrient and organics contents without any additional treatment. | ||
کلیدواژهها | ||
Biological treatment؛ Nutrients؛ Photosynthesis؛ Primary treated wastewater | ||
مراجع | ||
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