臭氧-生物炭砂工艺处理微污染水试验研究

以中置式高密度沉淀池沉后水作为进水,考察了臭氧-生物炭砂工艺对微污染水的处理效果.结果表明,该工艺流程可以有效去除水中的CODMn浊度和氨氮,CODMn及浊度的平均去除率分别为61.4％和37.5％,稳定运行时期氨氮的平均去除率达到46.6％.在活性炭滤层下增加砂垫层,对控制出水浊度及保障生物安全性能起到一定的作用.

Treatment of micro-polluted water with ozone-biological activated carbon and sand filtration process

Treatment efficiency of micro-polluted water with ozone-biological activated carbon and sand filtration process was investigated using the settled water from the intermediate high density sedimentation tank as influent.The results indicated that CODMn,turbidity and ammonia nitrogen could be removed effectively with the process,the average removal rates of CODMn and turbidity were 61.4% and 37.5% respectively,and the average removal rate of ammonia nitrogen could reach 46.6% at stable operation conditions.Sand cushion was added under the activated carbon,and it could control the turbidity of the effluent water and guarantee biosafety.