机构地区: 华南理工大学轻工与食品学院制浆造纸工程国家重点实验室
出 处: 《中国造纸》 2005年第2期14-16,共3页
摘 要: 以木素磺酸钙为原料通过接枝共聚、Mannich反应制备了两性木素絮凝剂LSDC ,对制备条件进行了优化。用裂解气相色谱 质谱联用仪对LSDC进行了表征 ,并将LSDC应用于生物活性污泥的絮凝脱水处理。结果表明 :LSDC在提高污泥的沉降速度、降低污泥含水率和过滤比阻方面有很好的性能。 An amphoteric lignin flocculant LSDC was prepared by graft and Mannich reaction with calcium lignosulfonate as raw material. The preparation conditions were optimized and LSDC was characterized by Py-GC-MS. The results of applying LSDC to the bio-active sludge showed that LSDC can speed up the sedimentation rate, decrease moisture content and specific filtration resistance of the sludge.
领 域: [轻工技术与工程]