Ключевые слова: clean, construction, debris, dirty, dirty foam, ecological problems, ecology, environment, environmental, environmental problems, estuary, factory, hadzhibey estuary, industrial, industry, marine ecology, mud, nature, pipe, pollution, purification, purified, recycling, sewage, sewer, sewerage, sludge, system, tank, treatment, treatment facilities, ukraine, waste, waste water, wastewater, water, water body pollution,