电吸附技术用于燃煤电厂微污染水除盐实验研究

Experimental Study on Circulating Water Desalination in Coal-fired Power Plant Using Electrosorption Technology

以活性炭作为电极材料,对电吸附技术用于燃煤电厂微污染水的除盐效果开展实验研究,探究关键因素对盐分吸附速率和吸附量的影响,研究表明:随着电压的增大,电极材料的吸附容量先增大后减小,在1.2 V时达到最高为33.8184 mg/g;随着流速的增大,电吸附容量先增加后减少,在10 mL/min时达到峰值33.8184 mg/g;随着初始离子浓度的增大,电吸附容量不断增大,但电极材料的吸附能力存在上限;电吸附装置的稳定性良好,脱附再生后基本可以恢复到初始状态,研究成果为电吸附技术在燃煤电厂微污染水除盐的实际应用中提供理论依据。

In this paper,active carbon is used as electrode material to carry out experimental research on the desalting effect of electro-adsorption technology for micro-polluted water in coal-fired power plants.The influence of key factors on the salt adsorption rate and adsorption capacity are explored.Results shows that with the increase of voltage,the adsorption capacity of electrode material increases and then decreases,reaching the maximum of 33.8184 mg/g at 1.2 V;With the increase of flow rate,the adsorption capacity first increased and then decreased,reaching a peak of 33.8184 mg/g at 10 mL/min;With the increase of the initial ion concentration,the adsorption capacity of the electrode increases continuously,but the adsorption capacity of the electrode material has an upper limit;The stability of the electric adsorption device is good,and it can basically return to the initial state after desorption and regeneration.The research results in this paper provide a theoretical basis for the practical application of the electric adsorption technology in the desalination of micro-polluted water in coal-fired power plants.