Objective: to screen nitrobacter that could be used to treat ammonia nitrogen pollution, dejecta and sewage in military tunnel.

目的：筛选、分离能够用于治理氨氮污染和军事坑道生活污物、污水的硝化菌。

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Waterproof sealing of municipal project, sewage conduit, sealing of dilatation joint of tunnel and road project, adhesion and sealing of ceramics.

市政工程、排污管道的防水密封等，隧道及道路工程的混凝土伸缩缝密封，陶瓷工程的粘接及填缝密封。

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It can be used in the laying of sewage, gas pipe or electric cable tunnel without opening the road surface, railroad or riverbed. It is of simple construction, easy operation and low cost.

它可不开挖跨路面、铁路和河流铺设下水道，煤气管和电缆管路等，结构简单、工作方便、施工费用低。

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United Utilities is building a huge sewage tunnel beneath the city centre to improve drainage and water quality.

BBC: Businesses hit by Preston sewer works compensated

Thames Water said the new tunnel is needed to stop increasing amounts of sewage being discharged into the Thames from the Victorian sewers.

BBC: Thames Water bills rise to pay for Thames super sewer

He said the proposed Thames Tunnel offered "the most timely, comprehensive and cost effective solution" to raw sewage being dumped into the Thames.

BBC: Raw sewage in Thames 'a disgrace' - Labour MP