废铁屑-H_2O_2法处理炼油厂含酚废水

Treatment of Phenols Containing Wastewater by an lron Chips H_2O_2 Process

用废铁屑作催化剂，Ｈ２Ｏ２作氧化剂，对炼厂汽提后含硫废水进行了除酚试验研究。考察了初始ｐＨ、Ｈ２Ｏ２投加量、废铁屑投加量对酚去除率的影响。对含酚量为３３１．５ｍｇ／Ｌ的废水，将其初始ｐＨ调至７．２，３０％Ｈ２Ｏ２的投加量为７．５ｍＬ／Ｌ，废铁屑的投加量为３～８ｇ／Ｌ，经２ｈ反应后，酚的脱除率可达９９．９％。

A process with iron chips as a catalyst and H_2O_2 as an oxidant for removal of phenols from the stripped sulphurous wastawater from refinery has been investigated.The effects of initial pH and the doses of H_2O_2 and iron chips on the removal efficiency of phenols were studied in the experiment.Under the conditions of 331.5 mg/L of phenols in the wastewater with pH value adjusted to 7.2, 7.5 mg/L of H 2O 2,3～8g/L of iron chips and 2 h of reaction time,the removal efficiency of phenols came up to 99.9%.