造纸废水高效生化处理情况

阐述了某大型造纸厂的废水处理工艺及运行情况。结果表明：生物酸化单元能够降低废水的ＣＯＤ、ＳＳ指标、提高废水的可生化性，还能通过较长的水力停留时间有效地调节水量与水质，从而保证了二级生物氧化的稳定与高效运行。在二极生化之后，增设水葫芦吸附墉ＣＯＤ、ＳＳ与色度、更好地保护了天然水本的环境质量，且为实现废水的深度处理与回用建立了良好的条件。

High Effective Bio-chemical Treatment Condition of paper Mill Wastewater

The treatment process and operation condition of certain large scale paper mill effluent are discussed. The result shows that biological acidification unit can reduce COD, SS targets of wastewater, improve bio chemical action and effectively adjust quantity and quality through longer hydraulic standing time, so as to guarantee the stable and high effective operation of secondary bio oxidation. After secondary bio oxidation, Water Hyacinth adsorption pond is added to further reduce COD, SS and colour index of wastewater, the environmental quality of natural water body is better protected, and deep treatment and good reuse condition of the wastewater are accomplished.