摘要
利用光伏电池为能源,开展了电化学法去除水体中硝酸盐氮的研究。实验从太阳能板的V—I曲线、串联电池板数量、不同pH值以及能量消耗与太阳光利用效率等方面进行了研究。实验结果表明:外接不同负载,太阳能电池板能以恒压或恒流方式工作;在一定范围内,适当增加太阳能板的数量,能提高硝酸盐氮的去除率,确定串联电池板最佳数量为3块;在pH值为8.7时,硝酸盐氮去除率可达91.2%;在pH值为7时,其单位质量能耗和太阳光利用效率均较低,分别为163 kWh/kg和5.89%.
An electrochemical process powered directly by photovoltaic solar energy was used to remove nitrate nitro- gen in a water body. The V-I curve of solar panels,the series solar panels number,different pH values,the energy consumption and energy conversion efficiency of solar panels were studied. The experimental results show that solar panels can run in constant voltage or constant current mode according to the working load. The nitrate nitrogen re- moval rate can increase with an increasing number of solar panels and the best number of series solar panels is 3. When the pH value is 8. 7,the nitrate nitrogen removal rate could reach 91. 2%. When the pH value is 7,the unit mass of energy consumption and energy conversion efficiency of solar panels are very low,and their values are 163 kWh / kg and 5. 89%,respectively.
出处
《武汉工业学院学报》
CAS
2013年第4期23-26,共4页
Journal of Wuhan Polytechnic University
关键词
电化学法
硝酸盐氮
新能源
水体
electrochemical process
nitrate nitrogen
new energy
water body
