Abstract:

In this experiment, hydrolysis acidification-aerobic oxidation-filtration biotreatment of the wastewater fromvitamin B 1 production has been carried out tostudythe effects ofpH, the temperature, dissolved oxygen, sludge load on the whole technology. The result shows that the BOD/COD ratio of the wastewater is about 0.14, which means the wastewater is difficult tobe biodegraded. After hydrolysis acidification pretreatment,the BOD/COD ratiogoes up to 0.43, and the biodegradabilityis improved significantly. When the CODis kept at about 3 000 mg/Land MLSSload is kept between 0.4-0.5 kg/(kg·d), the systemshows good stability, and the removal rate is about 80.0%.

Key words: wastewater from vitamin B 1 production, hydrolysis acidification, aerobic oxidation, filtration

摘要：

采用水解酸化—好氧氧化—砂滤串联工艺处理维生素B1制药废水，试验分别考察了pH、温度、滤速、溶解氧以及污泥负荷对整个工艺处理效果的影响。结果表明，原废水BOD/COD约为0.14，属难生物降解废水，经水解酸化处理后，出水BOD/COD可达0.43，可生化性大大提高。维持好氧氧化工段进水COD质量浓度和MLSS的COD负荷分别在3000mg/L和0.4～0.5kg/(kg.d)时，系统运行稳定性好，COD去除率均在80.0%以上。

关键词: 维生素B1生产废水, 水解酸化, 好氧氧化, 砂滤

CLC Number: 

• X703.1