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磷对藻类生长及污水净化的影响
引用本文:高玉荣,黄玉瑶.磷对藻类生长及污水净化的影响[J].应用生态学报,1991,2(4):355-360.
作者姓名:高玉荣  黄玉瑶
作者单位:中国科学院动物研究所,中国科学院动物研究所,中国科学院动物研究所,中国科学院动物研究所 北京 100080,北京 100080,北京 100080,北京 100080
摘    要:在室内模拟氧化槽中比较研究了污水中不同磷含量及氮磷比例对藻类生长及污水净化的影响。原污水中氮含量均为20mg/L,磷含量分别为1.25、2.50、5、10mg/L,结果发现原污水中的N/P为20/2.5时,藻类净生产量最高,污水净化效果最好。

关 键 词:    藻类生长  污水净化

Influence of phosphorus on algae growth and sewage purification
Gao Yurong,Huang Yuyao,Cao Hong and Chen Yanmei.Influence of phosphorus on algae growth and sewage purification[J].Chinese Journal of Applied Ecology,1991,2(4):355-360.
Authors:Gao Yurong  Huang Yuyao  Cao Hong and Chen Yanmei
Abstract:An experiment on the influence of phosphorus in raw sewage on algae growth and sewage purification was carried out in modelling stabilization pond system in laboratory. Results indicate that when TN concentrations are all kept at 20 mg/L in raw sewage and TP are changed from 1.25, 2.50, 5.00 to 10.00mg/L, the removal rate of TN, BOD_5 and LAS are decreased with increasing TP concentration, but the removal rate of TP presents an opposite tendency. The ratio of N/P=20/2.50mg/L is the better concentration and ratio for sewage purification than others. This result is correlated with the net oxygen production of algae. There are different species composition of algae existed in different N/P systems. When the ratio of N/P is changed from 20/1.25, 20/2.5, 20/5 to 20/10 mg/L, the percentage of green algae is decreased with increasing TP concentration, but blue algae presents an opposite tendency which may cause high levels of algae density, biomass, oxygen consumption, pH value and low rate of purification.
Keywords:Nitrogen  Phosphorus  Algae growth  Sewage purification    
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