摘要
石油化工废水属于极难降解的废水,经水解酸化后,出水B/C可达0.3~0.35。微氧工况下的水解酸化池SO^(-2)_4的还原受到抑制,H_2S气体产量极少,水解酸化池可以作为曝气池的预处理段,提高B/C,降低并稳定二沉池出水COD。
Petrochemical sewage belonged to the hardest degradative wastewater,ratio of BOD to COD in drainage reached to 0. 3 to 0. 35 after hydrolysis acidification treatment. Reduction reaction of SO^（- 2）_4 was restrained and gas production of H_2 S was fractional in the hydrolysis acidification tank under microaerobic operating condition. Ratio of BOD to COD in drainage could be increased and COD in the drainage of the secondary clarifier was reduced and stable when hydrolysis acidification tank as pretreatment section of the aeration tank.
出处
《齐鲁石油化工》
2016年第1期38-40,共3页
Qilu Petrochemical Technology
关键词
污泥驯化
水解酸化
B/C
sludge acclimation
hydrolysis acidification
ratio of BOD to COD
