several of these flow into a branch sewer, which joins first a sub-main and then a main sewer taking it to the treatment plant.
这些街道污水管又相结一条污水支管。此支管与次干管连接,然后经主干管将污水送至污水处理厂。
The main methods for inhibition of the hydrogen sulfide emission in sewer are as follows: reducing the turbulence, increasing the alkalinity, reaeration, ventilation.
而抑制下水道中硫化氢气体释放的主要手段包括:降低水的紊流程度,增加入流污水的碱度,向下水道内充氧,改善通风环境。
optimized design of sewer main and pumping stations in shenzhen
深圳污水主干管渠及泵站工程设计优化
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