树脂生产废水中甲醛含量的测定

Determination of Formaldehyde Content in Resin Production Wastewater

苯并噁嗪树脂的生产过程会产生含甲醛的废水,属于有毒和难处理的废水之一,且主要以多聚甲醛的形式存在。本文将多聚甲醛解聚成游离态的甲醛后,采用HJ 601-2011乙酰丙酮分光光度法进行测定,方法简单可靠,已应用于工业生产。

The wastewater containeed formaldehyde was produced in the production of benzoxazine resin.Formaldehyde wastewater was one of the toxic and refractory wastewater,and mainly existed in the form of paraformaldehyde.In this paper,the paraformaldehyde was depolymerized to free formaldehyde,and then was determined by HJ 601-2011 acetylacetone spectrophotometry.This method was simple and reliable,and was applied in industrial production.