Water Environ Res. 2018 Feb 1;90(2):155-163. doi: 10.2175/106143017X14902968254890. Epub 2017 Jul 11.
Nutrient removal effectiveness from anaerobic digestion effluents (ADEs) by Chlorella sp. cultivation and microalgae biomass productivity were evaluated in this study. The results showed that the highest Chlorella sp. biomass productivities of 386.5 ± 24.1 mg dry weight/L•d and 338.3 ± 11.0 mg dry weight/L•d were respectively obtained with the anaerobically digested effluent of municipal wastewater sludge and effluent from a fermentation tank treating dairy wastewater. Lower (p < 0.05) microalgal growth was achieved with anaerobically digested effluents of maize silage and swine slurry and cattle manure. The increase of the initial ammonia nitrogen concentration in ADEs to the level of 160 mg/L did not encourage Chlorella sp. productivity because of phosphorus limitation. The removal efficiencies of ammonia nitrogen, total nitrogen, total phosphorus, and chemical oxygen demand (COD) reached 99.7%, 98.6%, 88.2%, and 58.7%, respectively, depending on the source of ADE, but not on the initial ammonia nitrogen concentrations.
本研究评价了小球藻培养和微藻生物质生产力对厌氧消化液（ADE）中养分去除效果。结果表明，从城市污水污泥厌氧消化液和处理牛奶废水发酵罐的流出物中，分别获得了 386.5±24.1 和 338.3±11.0 mg 干重/L·d 的最高小球藻生物质生产力。用玉米青贮和猪粪及牛粪的厌氧消化液，得到的微藻生长较低（p＜0.05）。由于磷限制，将 ADE 中的初始氨氮浓度增加到 160 mg/L 并没有促进小球藻的生产力。氨氮、总氮、总磷和化学需氧量（COD）的去除效率分别达到 99.7%、98.6%、88.2%和 58.7%，这取决于 ADE 的来源，但与初始氨氮浓度无关。
