Abstract:

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

Key words: uniform design, regression analysis, wastewater containing phenol and formaldehyde, optimization

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、醛的污染程度。

关键词: 均匀设计, 回归分析, 酚醛废水, 优化

CLC Number: 

• X783.2