摘要
以草类纤维为原料的造纸厂制浆黑液作材料。提取木质素经磺化后得到木质素磺酸钠,进一步制得含铁量23.4％的木质素磺酸铁螯合物。这是一种铁微肥。经处理后的草浆黑液COD、BOD去除率均在72％以上,SS去除率90％。
The waste liguid released during hydrolysis of straw for paper making was taken as the materials, The lignin was extracted and the sodium lignosulfonate was made from the lignin by sulfonation. Then the iron lignosulfonate containing 23.4％ iron content was synthysized from the sodium lignosulfonatel, Which is a trace element fertilizer. The BOD, COD and SS of treated liquid went down by 72％, 72％ and 90％.
出处
《江苏农学院学报》
CSCD
1992年第3期83-85,共3页
Jiangsu Agricultural Research
关键词
木质素磺酸铁
造纸废水
Na2SO3法
Iron lignosulfonate
Waste water of paper-making
Trace element fertilizer
