Ключевые слова: aerial, basin, chemical, circle, circular, clarifier, cleaning, construction, dirty, disinfected, drone, ecology, ecosystem, effluent, environment, facility, factory, filtration, flow, garbage, green, groundwater, industrial, industry, liquid, modern, plant, pool, process, recycling, reservoir, round, sedimentation, separation, separator, sewage, sludge, smell, station, steel, storage, sump, system, tank, top, urban, view, waste, wastewater, water,