摘要
研究了变性淀粉废水的两段生化处理工艺。废水先经酸化预氧化降解,然后生化曝气,技术可行,也较合理。酸化预氧化的停留时间约为24小时,CODcr去除率为30％～80％;生化曝气池的停留时间为36小时。CODcr去除率为78％～84％;处理的总去除率为90％～97％。在不经物化深度处理的情况下,出水已相当清彻透明,基本上达到国家排放标准。
Having studied in laboratory and engineering, the experiment indicated that it was feasible and reasonable for such kind of wastewater to be treated with acidification-preoxidation before aeration. The retention periods of acidification-preoxidation and aeration were 24 and 36 hours, and the elimination rates of COD_(cr) of both were 30%～80% and 78%～84% respectively. The total elimination rate of COD_(cr) in the two-stage biodegradation treatment was 90%～97%.
出处
《上海环境科学》
CAS
CSCD
1991年第2期8-10,共3页
Shanghai Environmental Sciences
