论文部分内容阅读
6污水处理6.6.17进入生物脱氮、除磷系统的污水,应符合下列要求:1.脱氮时,污水中的五日生化需氧量与总凯氏氮之比宜大于4;2.除磷时,污水中的五日生化需氧量与总磷之比宜大于17;3.同时脱氮、除磷时,宜同时满足前两款的要求;4.好氧区(池)剩余总碱度宜大于70mg/L(以CaCO3计),当进
6 Sewage Treatment 6.6.17 Sewage entering biological denitrification and phosphorus removal systems shall meet the following requirements: 1. When the nitrogen is denitrified, the ratio of the biochemical oxygen demand on the fifth day to the total Kjeldahl nitrogen should be greater than 4; Phosphorus, the five days in the sewage biochemical oxygen demand and total phosphorus ratio should be greater than 17; 3. At the same time denitrification and phosphorus removal, should meet the requirements of the first two paragraphs; 4. Aerobic (pool) surplus The total alkalinity should be greater than 70mg / L (to CaCO3 dollars), when into