CAJ | 학술논문

以不同氮磷浓度培养液为研究对象，比较分析了蛋白核小球藻（Chlorella pyrenoidosa）和斜生栅藻（Scenedesmus obliquus）对氮、磷的去除能力。试验结果表明：在不同氮磷浓度培养液中，小球藻和斜生栅藻均能生长，但小球藻的比生长速率明显高于斜生栅藻（P ＜0.05），其在中等氮磷浓度培养液（M组：含氮量13 mg/L，含磷量2 mg/L）中的比生长速率最高（0.505/d），约是斜生栅藻最大比生长速率（0.266/d）的1.90倍。而且不同氮磷浓度培养液对小球藻和斜生栅藻中叶绿素 a 的合成也具有较大影响；小球藻在 M组中，叶绿素 a 的得率最高，YN 为7.72μg/mg，YP 为51.20μg/mg；而斜生栅藻在高氮磷浓度培养液（H 组：含氮量18.2 mg/L，含磷量2.8 mg/L）中，叶绿素 a 的得率最低，YN 仅为1.14μg/mg，YP 仅为14.78μg/mg。此外，2种微藻对总氮的去除效率均＞97％，且小球藻的总氮去除速率明显高于斜生栅藻（P ＜0.05）；随着磷浓度的降低，2种微藻对总磷的去除能力明显增强，且小球藻的脱氮除磷能力优于斜生栅藻。
이불동담린농도배양액위연구대상，비교분석료단백핵소구조（Chlorella pyrenoidosa）화사생책조（Scenedesmus obliquus）대담、린적거제능력。시험결과표명：재불동담린농도배양액중，소구조화사생책조균능생장，단소구조적비생장속솔명현고우사생책조（P ＜0.05），기재중등담린농도배양액（M조：함담량13 mg/L，함린량2 mg/L）중적비생장속솔최고（0.505/d），약시사생책조최대비생장속솔（0.266/d）적1.90배。이차불동담린농도배양액대소구조화사생책조중협록소 a 적합성야구유교대영향；소구조재 M조중，협록소 a 적득솔최고，YN 위7.72μg/mg，YP 위51.20μg/mg；이사생책조재고담린농도배양액（H 조：함담량18.2 mg/L，함린량2.8 mg/L）중，협록소 a 적득솔최저，YN 부위1.14μg/mg，YP 부위14.78μg/mg。차외，2충미조대총담적거제효솔균＞97％，차소구조적총담거제속솔명현고우사생책조（P ＜0.05）；수착린농도적강저，2충미조대총린적거제능력명현증강，차소구조적탈담제린능력우우사생책조。
Artificial medium with different nitrogen and phosphorus concentrations was designed to study N,P removal ability of Chlorella pyrenoidosa and Scenedesmus obliquus .Results showed that C. pyrenoidosa and S .obliquus could grow in all artificial media.However,growth rate of C.pyrenoidosa was the highest (0.505 /d)in the artificial medium with total nitrogen (TN)of 13 mg/L and total phos-phorus (TP)of 2 mg/L,which was significantly higher than that of S .obliquus with a maximum growth rate of 0.266 /d (P <0.05).Chlorophyll a syntheses of two microalgae were greatly influenced by artifi-cial media with different nitrogen and phosphorus concentrations.The maximum chl a yields (YN and YP) of C.pyrenoidosa were 7.72μg/mg and 51 .20μg/mg,respectively,in the artificial medium with TN of 13 mg/L and TP of 2 mg/L.While chl a yields (YN and YP)of S .obliquus were only 1 .14μg/mg and 14.78μg/mg,respectively,in the artificial medium with 18.2 mg/L TN and 2.8 mg/L TP.In addi-tion,total nitrogen removal efficiencies in artificial media were all above 97% using C.pyrenoidosa and S .obliquus .But C.pyrenoidosa has higher removal rate of total nitrogen than S .obliquus .Total phos-phorus removal efficiencies were obviously enhanced with the decrease of phosphorus concentration in arti-ficial medium.In general,C.pyrenoidosa was superior to S .obliquus in N,P purification.