Modeling and Evaluation of CO2 Supply and Utilization in Algal Ponds

Modeling and Evaluation of CO2 Supply and Utilization in Algal Ponds
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藻池二氧化碳供应和利用的建模与评估

DOI:
10.1021/ie200723w
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发表时间:
2011
影响因子:
4.2
通讯作者:
A. Yang
A. Yang
中科院分区:
工程技术3区
文献类型:
--
作者:
A. Yang

文献摘要

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构建了一个数学模型来模拟开放藻池的行为,特别是在二氧化碳供应和利用方面。所考虑的藻池以废水为饲料,为好氧细菌提供底物,并为藻菌群落提供营养。烟道气或沼气等含二氧化碳气体被认为是支持藻类生长的额外二氧化碳来源,同时也起到了二氧化碳减排的目的。进行了大量的模拟研究,以评估系统在藻类生产、废水处理以及二氧化碳固定和去除方面的性能。考虑了重要的设计和操作参数,包括池深度、水力停留时间、进料废水的成分、供应气流的流速和二氧化碳分数,以及用于气流诱导的面积。根据模拟结果进行了一些有用的观察,有可能为 f... 提供指导。
A mathematical model was constructed to simulate the behavior of an open algal pond particularly with respect to CO2 supply and utilization. The algal pond considered takes wastewater as feed, which provides substrate for aerobic bacteria and also nutrients for the algal-bacterial consortium. CO2-containing gas such as flue gas or biogas is considered as additional source of CO2 to support the growth of algae which at the same time also serves the purpose of CO2 abatement. A number of simulation studies were carried out to evaluate the performance of the system in terms of the production of algae, treatment of wastewater, and CO2 fixation and removal. Important design and operating parameters were considered, including pond depth, hydraulic retention time, composition of the feed wastewater, flow rate and CO2 fraction of the supplied gas flow, and the area utilized for gas flow induction. Several useful observations were made based on the simulation results, with the potential to provide guidance to the f...