利用电厂粉煤灰处理造纸黑液的实验研究

摘要

以造纸黑液为处理对象,利用电厂粉煤灰进行吸附实验研究。在实际水量比例下,用黑液作为除尘器喷淋水后,除尘效果及粉煤灰吸附沉淀对原水中COD、色度、氨氮的去除效果。结果表明：COD、NH3-N和色度的最高去除率分别为39.4%,48.9%和44%,效果较好。吸附处理后出水经过混凝沉淀后,可以达到城市污水排放标准。%The application of treating black liquor with power plant fly ash was introduced and analyzed in the paper.The proportion of the actual amount of water,using black liquor as a dust spray water,dust and fly ash effect of precipitation on the raw water COD,color,ammonia nitrogen removal.The results showed that： COD,NH3-N and the highest color removal rate were 39.4 %,48.9 % and 44 % effective.The effluent of adsorption after coagulation and sedimentation,can reach urban sewage discharge standards.