MiDAS4, global survey of activated sludge

Biological wastewater treatment and the transition to wastewater resource recovery facilities is fundamental for protection of the environment and human health and to ensure...生物污水处理（Biological wastewater treatment）以及向污水资源回收设施（wastewater resource recovery facilities）转型，对于环境保护与人类健康保障以及确保……而言具有基础性意义。