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aeration plant; effluent purification plant; biological treatment plant; secondary treatment plant; sludge contact clarifier; sewage treatment plant; activated sludge unit | |||
aeration station; activated sludge plant | |||
activated sludge plant (сооружение для биохимической очистки сточных вод путем аэрации с активным илом) |
станция аэрации : 8 phrases in 2 subjects |
Construction | 6 |
Ecology | 2 |