发布时间:2025-01-31 18:47:53
答:
选罗茨风机要两参数:
压力风量.先根据BOD除量计算需氧量,再根据曝气设备氧转移效率及其些附加条件计算风机工作状况需气量,根据空气需要量池体水深选择风机,
相关计算公式《三废设计手册----废水卷》,,情况建议风量8立每,压力50KPA-55KPA即,选择百事德或锦工罗茨风机,实惠耐用,让算.
女朋友非要8w礼金才能和我结婚可是家里实在没钱呀父母都是普通农民最近几年刚盖了房子又装修
2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53hdm250c数显调温电热套hdm250c数显调温电热套技术参数
2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53 2025-01-31 18:47:53