NUTRIENT RECOVERY AND POLLUTANT REMOVAL FROM PIGGERY WASTEWATER BY SPIRULINA CULTIVATION
Keywords:Spirulina, wastewater treatment, nitrogen recovery, N, P ratio
Spirulina is noticed for great applications on food supplements, animal feeds, pharmaceutical, cosmetics, biofuel, fertilizer, etc. Spirulina cultures in wastewaters could enhance the feasibility of commodities due to its ability to reduce the cost of biomass production and remove pollutants in wastewaters. This study investigates the effects of wastewater pretreatment using various aeration periods (i.e. from 3 to 7 days), the supplement of bicarbonate and N:P ratios on the growth of Spirulina sp. HH to produce protein-rich biomass. The work showed that Spirulina sp. had the ability to effectively remove ammonium, with the highest efficiencies up to 99.9 %. However, the high concentration of ammonium in wastewater, from 125 mg N/L upward, caused a decline in the growth rate of Spirulina. The growth and remediation potential of Spirulina sp. were in the best condition with the N:P ratio of the medium in the range of 19:1-22:1. This study suggested a procedure to cultivate Spirulina sp. in piggery wastewater and remove pollutants efficiently.
Amos Richmond, 2004. Handbook of microalgal culture: Biotechnology and applied phycology. Blackwell Science Ltd.
Kun Lia, Qiang Liu, Fan Fang, Ruihuan Luo, Qian Lu, Wenguang Zhou, Shuhao Huo, Pengfei Cheng, Junzhi Liu, Min Addy, Paul Chen, Dongjie Chen, Roger Ruan (2019). Microalgae-based wastewater treatment for nutrients recovery: A review. Bioresource Technology, 291: 121934
G. Procházková, I. Brányiková, V. Zachleder, T. Brányik (2014), Effect of nutrient supply status on biomass composition of eukaryotic green microalgae, J. Applied Phycology 26(3): 1359–1377.
A.C. Redfield (1958), The biological control of chemical factors in the environment, Am. Sci. 46 205–221.
Doan Thi Thai Yen, Do Ngoc Huan, Nguyen Thuy Nga, (2014). Culturing Chlorella in anaerobically digested piggery wastewater for biodiesel feedstock and nutrient removal. Science –Technology Journal-Technology Universities, 99(A): 5-9.
Standard methods for examination of water and wastewater analysis, 4th Ed., 1999, American Public Health Association, American Water Works Association, Water Environment Federation
O. Depraetere, Imogen Foubert, Koenraad Muylaert (2013). Decolorisation of piggery wastewater to stimulate the production of Arthrospira platensis. Bioresource Technology 148:366-372
Xiaoting Li, Wei Li, Jun Zhai, Haoxuan Wei, Quanfeng Wang (2019), Effect of ammonium nitrogen on microalgal growth, biochemical composition and photosynthetic performance in mixotrophic cultivation, Bioresource Technology 273:368-376
J. Nimptsch, S. Pflugmacher, (2007), Ammonia triggers the promotion of oxidative stress in the aquatic macrophyte Myriophyllum mattogrossense. Chemosphere, 66 (4) pp. 708-714.
Xin Yuan, Amit Kumar, Ashish K. Sahu, Sarina J. Ergas, 2010. Impact of ammonia concentration on Spirulina platensis growth in an airlift photobioreactor, bioresource technology, Bioresource Technology 102(3):3234-9.
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