title: Integrated campus sewage treatment and biomass production by Scenedesmus quadricauda SDEC-13.
abstract: The notion of wastewater treatment combined with biomass production is potential and prospective. Campus sewage was utilized twice in procession to cultivate the newly isolated microalgae Scenedesmus quadricauda SDEC-13. Nutrients was efficiently removed with the phosphorus and nitrogen removal efficiency nearly 100% and more than 70% respectively in twice use of campus sewage. Ammonium was consumed rapidly within five days in 1st use. There was no significant difference in the lipid and protein content but distinct difference in their respective productivity which is ascribed to the lower biomass productivity caused by limited nutrients in 2nd use. The diverse nutrient concentration in twice use of campus sewage and BG-11 had effects on the composition of fatty acids and amino acids. SDEC-13 performed better biodiesel quality compared with BG-11 medium and produced high quality protein when cultivated in campus sewage. Finally, the campus sewage after twice use reached the corresponding discharge standard.
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Han
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, 17923 Jingshi Road, Jinan 250061, China. Electronic address: haiyanhup@126.com.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Pei
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, 17923 Jingshi Road, Jinan 250061, China.
authors.forename: Wenrong
authors.initials: W
authors.lastname: Hu
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China.
authors.forename: Liqun
authors.initials: L
authors.lastname: Jiang
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China.
authors.forename: Guixia
authors.initials: G
authors.lastname: Ma
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Zhang
authors.affiliation: School of Environmental Science and Engineering, Shandong University, 27 Shanda Nan Road, Jinan 250100, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Han
mesh_terms: D056804:Biofuels; D018533:Biomass; D005227:Fatty Acids / Q000378:metabolism; D008055:Lipids; D058086:Microalgae / Q000378:metabolism*; D009584:Nitrogen / Q000032:analysis; D010758:Phosphorus / Q000378:metabolism; D044444:Scenedesmus / Q000378:metabolism*; D012722:Sewage / Q000032:analysis / Q000737:chemistry*; D014495:Universities; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*
chemical_list: D056804:Biofuels; D005227:Fatty Acids; D008055:Lipids; D009584:Nitrogen; D010758:Phosphorus; D012722:Sewage; D062065:Wastewater
keywords: Amino acid composition; Campus sewage; Lipid accumulation; Microalgae; Nutrient removal