烧碱法草浆木质素的混凝作用试验研究

Experimental Studies on the Coagulation of Lignins from Anaerobic Treatment Process for Caustic Soda Straw-pulping Black Liquor

从厌氧处理前后的烧碱法草浆黑液中提取的木质素对蒙脱土悬浊液、味精废液和印染废水等县有良好的处理效果．试验发现，从经过反氧处理的黑液中提取的木质素有较好的混凝作用，去除废水浊度、色度和ＣＯＤ的效率比从原黑液中提取的木质素高．研究表明草桨碱木素是一种具有开发前景的混凝剂．

The lignins,extracted from the imment and effluent of an anaerobic baffled reactor for the treatment of caustic soda straw-pulping black liquor, are effective to the treatment for colloidal solution of montomorillonite, monosodium glutamate and dyeing wastewater. The lignin coagulants extracted from of fluent is better for turbidity, color and COD removal than that extracted from the influont.