Ключевые слова: bacteria, barrel, building, construction, dirty, ecological, ecology, elimination, environment, environmental, factory, fecal, filter, flow, hole, home, house, industry, installation, leaking, lid, liquid, open, outdoors, pipe, plastic, pollution, puddle, purification, residential, sanitary, sanitation, sedimentation, septic, sewage, sewer, sludge, storage, substance, system, tank, treat, treatment, underground, unpleasant, waste, wastewater, water,