Absorption of low-concentration CO2 by industrial effluents: feasibility and application

被引：0

作者：

Xu W. ^{[1
]}

Cheng H. ^{[1
]}

Cheng F. ^{[1
]}

机构：

[1] Institute of Resources and Environmental Engineering, Engineering Research Center of CO2 Emission Reduction and Resource Utilization-Ministry of Education of the People's Republic of China, Shanxi University, Taiyuan

来源：

Huagong Xuebao/CIESC Journal | 2021年 / 72卷 / 12期

关键词：

Absorption; Carbon dioxide; Reaction; Waste treatment; Waste water;

D O I：

10.11949/0438-1157.20211075

中图分类号：

学科分类号：

摘要：

The low-concentration CO2 waste gas produced by the combustion of chemical fuels can be absorbed by industrial waste water. Based on the current research status, this review reports the research progress of CO2 waste gas uptake with industrial waste water, the feasibility is analyzed. The reaction principle of waste gas with CO2 and industrial effluents is summarized, which can be roughly divided into three reaction types: neutralization reaction, metathesis reaction, and microbial degradation. Its absorption kinetics is discussed. The equipment and process of industrial waste water absorbing low-concentration CO2 waste gas are summarized. In this treatment mode, the adsorption of CO2 has a good effect on reducing the pH of lye and removing harmful substances from the waste water. Meanwhile, it can also obtain products with recycling value, such as micro/nano calcium carbonate and biodiesel, which can be applied to industrial production to realize the deep recycling of waste resources. In addition, the life cycle assessment of CO2 waste gas absorbed by industrial waste water are analyzed, and further the environmental impact and economic feasibility are analyzed by evaluating energy consumption, carbon emission and cost under specific process conditions. Combining the prospect of CO2 emission reduction, this review discusses the challenges of using industrial waste water as a low-concentration CO2 absorbent from the perspective of industrial application, and prospects for its future industrialization development. © 2021, Editorial Board of CIESC Journal. All right reserved.

引用

页码：6049 / 6061

页数：12

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