摘要
在碱性条件下吸附絮凝处理甘蔗渣蒸煮黑液。通过实验获得适宜吸附絮凝条件为:膨润土用量120g/L,双氰胺-甲醛絮凝剂用量6mL/L,反应温度40℃,快速搅拌时间2min,澄清时间25h。分析表明:吸附絮凝沉淀物中除含大量木质素外,还含有氮、钾等营养元素,为制备固体有机肥料创造了条件;上层清液可作为工艺水循环使用。
This paper discusses the treatment of bagasse black liquor in alkalescent condition. The suitable adsorption and flocculation conditions were as follows： bentonite 120 g/L, dicyandiamideformaldehyde 6 mL/L, reaction temperature 40 ℃, fast stirring time 2 min and clarification time 25 hours. It was found that N, K and lots of lignin were present in the adsorption and flocculation mud, which could be used as the raw material to prepare organic solid fertilizer. The clarified black liquor could be recycled as the process water.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2006年第4期428-431,共4页
Chemical Industry and Engineering Progress
基金
江西省自然科学基金项目(No.0520003)
关键词
黑液
吸附絮凝
改性膨润土
双氰胺甲醛
black liquor
adsorption-flocculation
modified bentonite
dicyandiamide-formaldehyde
