改性粉煤灰对含镉废水处理的实验研究  

Experimental Study of Modified Flyash Treatment for Cadmium Wastewater

作　　者：姚文瑾 

机构地区：[1]江苏工程职业技术学院,江苏南通226007

出　　处：《广东化工》2017年第17期149-150,145,共3页Guangdong Chemical Industry

摘　　要：在粉煤灰中加入钠盐进行改性,制备了改性粉煤灰,并用其对含镉废水进行处理。本文研究了改性粉煤灰的投加量、反应温度、反应时间、反应pH值等因素对含镉废水处理效果的影响。通过正交试验讨论各影响因素对含镉废水处理效果的影响,研究结果表明:改性粉煤灰投加量影响作用最大,其次是反应时间、反应pH值,最后是反应温度。最佳的反应条件是:改性粉煤灰的投加量是40 g/L、温度为25℃、时间为50 min,反应pH值为7。Focusing on the effect of cadmium wastewater treatment with modified flyash, the influences of various factors on the reactions were studied. The proper reaction conditions were obtained. The experimental results and orthogonal test results show that the optimal removal rate of cadmium with modified flyash can reach under the optimal condition that the input mass concentration of modified flyash is 40 g/L, the temperature is 25 ℃, the reaction time is 50 min and the pH is 7.

关 键 词：改性粉煤灰 含镉废水 正交试验 

分 类 号：O212[理学—概率论与数理统计]