Batch kinetics of nitrogen and phosphorus removal from synthetic wastewater by algae
Batch kinetics of nitrogen and phosphorus removal from synthetic wastewater by algae
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DOI：
10.1016/j.ecoleng.2006.04.003
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发表时间：
2006-11-01
影响因子：
3.8
通讯作者：
Kapdan, Ilgi Karapinar
中科院分区：
文献类型：
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作者：
Aslan, Sebnem;Kapdan, Ilgi Karapinar
采用批量试验研究了初始氮磷浓度对养分的影响。普通小球藻的去除效果及生物动力学系数k的测定；反应速率常数Km为半饱和常数，产率系数Y为Michaelis-Menten速率表达式。在N/P比保持在2/1左右的情况下，合成废水中NH4-N浓度在13.2 ~ 410mg（-1）之间变化，Po-4-P浓度在7.7 ~ 199 mg（-1）之间变化。实验在pH 7.0和室温（20 +/- 2℃）下进行，人工照明（4100 lux）。实验结果表明，出水水质随营养物浓度的增加而下降，藻类培养对氮的去除效果优于磷。测定的生物动力学系数为：k=1.5 mgNH(4)-N mg(-1) chl a d(-1), k -m=31.5mg (-1), Y-N=0.15 mg chl a mg(-1) NH4-N, k=0.5 mg PO4-P mg(-1) chl a d(-1), Km=10.5 mg(-1), Yp=0.14 mg chl a mg(-1) PO4-P。(c) 2006 Elsevier B.V.版权所有
Batch experiments were carried out to investigate the effect of the initial nitrogen and phosphorus concentrations on nutrient. removal performance of microalgae Chlorella Vulgaris and to determine biokinetic coefficients such as k; reaction rate constant, Km, half saturation constant, and Y, yield coefficient by using Michaelis-Menten rate expression. The NH4-N concentration was varied between 13.2-410mgl(-1) while Po-4-P concentration was between 7.7-199 mgl(-1) by keeping N/P ratio around 2/1 in the synthetic wastewater. The experiments were performed at pH 7.0 and at room temperature (20 +/- 2 degrees C) with artificial illumination (4100 lux). Experimental results indicated that effluent water quality decreases with increasing nutrient concentrations and algae culture can remove nitrogen more effectively compared to phosphorus. Biokinetic coefficients were determined as k=1.5 mgNH(4)-N mg(-1) chl a d(-1), K-m=31.5mgl(-1), Y-N=0.15 mg chl a mg(-1) NH4-N for nitrogen and k=0.5 mg PO4-P mg(-1) chl a d(-1), Km=10.5 mgl(-1), Yp=0.14 mg chl a mg(-1) PO4-P for phosphorus. (c) 2006 Elsevier B.V. All rights reserved.