anoxic water

The features and water quality of coke plant wastewater are introduced. And based upon development of waste water treatment technology the attached anoxic-oxic biological film process is proposed, which acquire good treatment effect in practical work.

介绍了焦化废水水质及其特征，并对其废水处理发展过程作了分析，提出了A/O+生物膜工艺的废水处理新方法，经在具体工程中应用，废水处理效果显著。

The black graptolite shale facies indicate a deep-water, half enclosed and anoxic sedimentary environment.

中奥陶世黑色的笔石页岩为典型的半封闭缺氧的深水沉积环境,反映了海水逐步加深,水体也变得相对宁静.

By adding municipal wastewater in effluent of ANOXIC-OXIC ( A/ O) reactor as external carbon source, effects of external carbon source on nitrogen and phosphorus removal in subsurface flow and free water surface integrated constructed wetland were studied in pilot-scale.

采用向ANOXIC-OXIC（A/O）工艺出水中添加城市污水的方法，在中试规模上研究了外加碳源对潜流+表面流组合湿地脱氮除磷的影响。

Under deficient source water alkalinity, the capabilities and the procedure of the alternating aerobic/ anoxic SBR process for nitrogen removal were studied.

当原水碱度不足时，针对SBR工艺，采用好氧/缺氧循环的运行方式进行脱氮性能及其过程控制的研究。

It is of guiding significance to stable operation of nitrification in anoxic-oxic ( A/ O) biochemical system in Waste Water Treatment Plant.

对污水处理厂A/O工艺生化系统硝化效果稳定运行具有一定指导意义。