Water falling in hydroelectric power station in 4k slow motion

spillway falling water - flowing water hydroelectric power waterfall hydroelectric power station dam water stream sewage flowing standing water water pollution drain drop liquid pouring environmental conservation slow motion power station environment renewable energy falling river food processing plant concrete hygiene industry pipeline nature outdoors bacterium cleaning chemical 4k pipe - tube rock plant purity vitality rain recycling factory pollution usa rock formation lighting technique power supply standing vegetable feces garbage manufacturing occupation rusty social issues