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Investigators at Tsinghua University Report Findings in Hydrology (Domestic wastewater treatment and biofuel production by using microalga...

August 20, 2014



Investigators at Tsinghua University Report Findings in Hydrology (Domestic wastewater treatment and biofuel production by using microalga Scenedesmus sp ZTY1)

By a News Reporter-Staff News Editor at Biotech Week -- Investigators discuss new findings in Hydrology. According to news reporting from Shenzhen, People's Republic of China, by NewsRx journalists, research stated, "Cultivation of microalgae for biomass production is a promising way to dispose of wastewater and recover nutrients simultaneously. The properties of nutrient removal and biomass production in domestic wastewater of a newly isolated microalga Scenedesmus sp."

The news correspondents obtained a quote from the research from Tsinghua University, "ZTY1 were investigated in this study. Scenedesmus sp. ZTY1, which was isolated from a wastewater treatment plant in Beijing, grew well in both the primary and secondary effluents of a wastewater treatment plant during the 21-day cultivation, with a maximal algal density of 3.6 x 10(6) and 1.9 x 10(6) cells mL(-1), respectively. The total phosphorus concentrations in both effluents could be efficiently removed by over 97% after the cultivation. A high removal rate (over 90%) of total nitrogen (TN) was also observed. After cultivation in primary effluent for 21 days, the lipid content of Scenedesmus sp. ZTY1 in dry weight had reached about 32.2%. The lipid and triacylglycerol (TAG) production of Scenedesmus sp. ZTY1 was increased significantly with the extension of cultivation time. The TAG production of Scenedesmus sp. ZTY1 increased from 32 mg L-1 at 21 d to 148 mg L-1 at 45 d in primary effluent. All the experiments were carried out in non-sterilized domestic wastewater and Scenedesmus sp."

According to the news reporters, the research concluded: "ZTY1 showed good adaptability to the domestic wastewater environment."

For more information on this research see: Domestic wastewater treatment and biofuel production by using microalga Scenedesmus sp ZTY1. Water Science and Technology, 2014;69(12):2492-2496. Water Science and Technology can be contacted at: Iwa Publishing, Alliance House, 12 Caxton St, London SW1H0QS, England. (IWA Publishing - www.iwaponline.com; Water Science and Technology - www.iwaponline.com/wst)

Our news journalists report that additional information may be obtained by contacting T.Y. Zhang, Tsinghua Univ, Grad Sch Shenzhen, State Environm Protect Key Lab Microorganism Appl, Shenzhen 518055, People's Republic of China. Additional authors for this research include Y.H. Wu and H.Y. Hu (see also Hydrology).

Keywords for this news article include: Asia, Biotechnology, Energy, Biofuel, Shenzhen, Hydrology, Oil and Gas, Bioengineering, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Biotech Week


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