难生物降解有机废水生化前预处理技术进展

Technical Progress in Pretreatment of Difficultly Biodegraded Organic Wastewater before Biotreatment

大部分化工废水不仅有机物浓度高,而且成分复杂,生物毒性高,难于生物降解。现行的处理工艺大部分是采用生化处理为主,若不采取行之有效的生化前预处理工艺,往往难以达到设计效果。经过几十年发展,现已形成了大量可行的预处理新技术,并已广泛应用到生产实践中,在环境治理中发挥了重要的作用,本文对现行各种预处理工艺进行了技术及经济方面的介绍和分析比较。

Wastewater from chemical industry is famous not only for its high concentration and toxicity but its complex compound that is difficult to be biodegraded as well,and yet nowadays biotreatment is still the core technic to deal with the kind of wastewater. So it is very important to select a appropriate pre-treatment technique. The following thesis is some introduction to new pretreatment techniques developed in the recent years.