CAJ | 학술논문

对小球藻去除污水中氮磷的性能进行了研究，考察了初始氮磷浓度、氮磷比、光照条件和pH等因素对其去除效率的影响。结果表明，在初始氮磷浓度分别在35 mg／L和7 mg／L以下时去除率接近100％；氮磷比为5∶1和10∶1，小球藻第4d基本完全去除了污水中的氨态氮，而氮磷比对小球藻的除磷能力没有显著影响；在初始氨态氮或总磷浓度相同的条件下，光照条件（ L／D为24 h∶0 h和12 h∶12 h）对氮磷去除效果的无明显差异性（ P＞0．05），而随着氮磷浓度的增加，连续光照条件逐渐展现出去除氮磷的优势；小球藻在pH 7～8范围内对氨态氮的去除率最佳，pH 5～7范围内，对总磷的去除率最佳。
대소구조거제오수중담린적성능진행료연구，고찰료초시담린농도、담린비、광조조건화pH등인소대기거제효솔적영향。결과표명，재초시담린농도분별재35 mg／L화7 mg／L이하시거제솔접근100％；담린비위5∶1화10∶1，소구조제4d기본완전거제료오수중적안태담，이담린비대소구조적제린능력몰유현저영향；재초시안태담혹총린농도상동적조건하，광조조건（ L／D위24 h∶0 h화12 h∶12 h）대담린거제효과적무명현차이성（ P＞0．05），이수착담린농도적증가，련속광조조건축점전현출거제담린적우세；소구조재pH 7～8범위내대안태담적거제솔최가，pH 5～7범위내，대총린적거제솔최가。
Chlorella vularis was employed to remove nitrogen and phosphorus from wastewater .The effects of initial NH+4-N and TP concentrations,N/P ratios ,light/darkness ratios and pH on the removal of NH+4-N and TP were evaluated.The results showed that Chlorella vularis could almost 100%remove NH+4-N and TP,when initial concentrations of NH+4-N and TP were no more than 35 mg/L and 7 mg/L.Under the N/P ratios of 5∶1 and 10∶1, Chloerlla vularis could completely remove NH +4-N within 4 d,while the N/P ratios almost has no effect on Chlorella vulari s to removal of TP.At the same initial concentrations of NH+4-N or TP,the L/D ratios of 24 h∶0 h and 12 h∶12 h had no significantly effect on removal of NH+4-N and TP by Chlorella vularis.Along with the initial concentrations increasing, Chlorella vularisshowed better removal effect of NH +4-N and TP under the L/D ratio of 24 h∶0 h.The optimal pH range for removal of NH +4-N and TP by Chlorella vularis were pH 7~8 and pH 5~7, respectively.