磷对藻类生长及污水净化的影响

应用生态学报 ›› 1991, Vol. 2 ›› Issue (4): 355-360.

磷对藻类生长及污水净化的影响

高玉荣, 黄玉瑶, 曹宏, 陈俨梅

中国科学院动物研究所, 北京 100080

收稿日期:1990-05-03 出版日期:1991-10-25 发布日期:1991-10-25
基金资助:
国家自然科学基金

Influence of phosphorus on algae growth and sewage purification

Gao Yurong, Huang Yuyao, Cao Hong, Chen Yanmei

Institute of Zoology, Academia Sinica, Beijing 100080

Received:1990-05-03 Online:1991-10-25 Published:1991-10-25

摘要/Abstract

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: 磷, 氮, 藻类生长, 污水净化

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 TNconcentrations are all kept at 20 mg/Lin raw sewage and TPare changed from 1.25, 2.50, 5.00 to 10.00mg/L, the removal rate of TN, BOD₅ and LASare decreased with increasing TPconcentration, but the removal rate of TPpresents an opposite tendency. The ratio of N/P=20/2.50mg/Lis 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/Psystems. When the ratio of N/Pis changed from 20/1.25, 20/2.5, 20/5 to 20/10 mg/L, the percentage of green algae is decreased with increasing TPconcentration, but blue algae presents an opposite tendency which may cause high levels of algae density, biomass, oxygen consumption, pHvalue and low rate of purification.

Key words: Nitrogen, Phosphorus, Algae growth, Sewage purification

高玉荣, 黄玉瑶, 曹宏, 陈俨梅. 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.

Gao Yurong, Huang Yuyao, Cao Hong, Chen Yanmei . Influence of phosphorus on algae growth and sewage purification[J]. Chinese Journal of Applied Ecology, 1991, 2(4): 355-360.

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