摘要
以某酚醛树脂厂的生产废水为对象 ,采用尿素 -苯酚 -甲醛碱性缩合预处理工艺 ,基于均匀设计和回归分析 ,建立了多元回归模型 ,研究了配比、催化剂、反应时间及温度等因素对处理效果的影响 ,优化了预处理的工艺条件 ,酚、醛去除率分别可达 99.8%、99.2 % ,出水可满足进一步进行生化处理的要求 ,并可回收苯酚改性脲醛树脂。同时 ,还为提高酚醛树脂合成产率提供了有效的优化思路 ,可从根本上降低树脂厂生产废水中酚。
The wastewater from a phenolic resins plant is treated by urea phenol formaldehyde basic co condensation process. Based on uniform design and regression analysis, the effect of factors such as proportioning, catalyst, temperature and time of reaction on processing results is investigated. The optimum process is gained. After purified, 99.8% of phenol and 99.2% of formaldehyde in the wastewater can be removed. The output meets the need of biological treatment, and a certain amount of phenolic resins can also be recovered. The optimization method can also be applied to increasing the yield of phenolic resins production.
出处
《工业水处理》
CAS
CSCD
2002年第12期21-24,共4页
Industrial Water Treatment
