平衡碳氮比以提高猪场和啤酒厂废水中养分的去除和藻类生物质的产量。
Balancing carbon/nitrogen ratio to improve nutrients removal and algal biomass production in piggery and brewery wastewaters.
机构信息
MOE Biomass Energy Research Center and College of Food Science and Technology and State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, People's Republic of China.
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, United States.
出版信息
Bioresour Technol. 2018 Feb;249:479-486. doi: 10.1016/j.biortech.2017.10.057. Epub 2017 Oct 16.
To improve nutrients removal from wastewaters and enhance algal biomass production, piggery wastewater was mixed with brewery wastewaters. The results showed that it was a promising way to cultivate microalga in piggery and brewery wastewaters by balancing the carbon/nitrogen ratio. The optimal treatment condition for the mixed piggery-brewery wastewater using microalga was piggery wastewater mixed with brewery packaging wastewater by 1:5 at pH 7.0, resulting in carbon/nitrogen ratio of 7.9, with the biomass concentration of 2.85 g L, and the removal of 100% ammonia, 96% of total nitrogen, 90% of total phosphorus, and 93% of chemical oxygen demand. The application of the established strategies can enhance nutrient removal efficiency of the wastewaters while reducing microalgal biomass production costs.
为了提高废水中营养物质的去除率并增加藻类生物质的产量，将养猪废水与啤酒厂废水混合。结果表明，通过平衡碳氮比，在养猪和啤酒厂废水中培养微藻是一种很有前途的方法。使用微藻处理混合养猪-啤酒厂废水的最佳条件是在 pH 值为 7.0 时，将养猪废水与啤酒厂包装废水按 1:5 的比例混合，得到的碳氮比为 7.9，生物质浓度为 2.85g/L，氨氮去除率为 100%，总氮去除率为 96%，总磷去除率为 90%，化学需氧量去除率为 93%。所建立的策略的应用可以提高废水的养分去除效率，同时降低微藻生物质生产成本。
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