生物膜法处理炼油废水

Refinery Wastewater Treatment with Biofilms

对影响生物膜内微生物活性的几个因素进行初步探索 ,并进行了生物接触氧化工艺去除炼油废水中氨氮和 COD的实验研究。实验发现在 COD≤ 50 0 mg/L的废水中 ,生物膜内异养细菌并不影响硝化细菌的代谢。生物接触氧化工艺能高效且稳定地同时去除废水中氨氮和 COD。

Factors that obstructed the activity of biofilms were found.Bio contact oxidation process was used to treat refinery wastewater.It was found that if the COD Cr was less than 500 mg/L,the heterofrophic bacteria didnt inhibit the nitrification.Bio contact oxidation process could steadily remove simultaneously COD Cr and NH + 4 N with high efficiencies.