1. They are often employed in primary water treatment in place of conventional settling tanks . 2. In food processing, the vegetable is crushed and placed inside of a settling tank with water. 3. A water line directs the house's wastewater from a settling tank to a plastic-lined gravel bed. 4. Below were settling tanks and a driver. 5. However, primary sludge from primary settling tanks does get produced and needs to be removed and treated. 6. For example, " Settling tanks " are used for separating solids and / or oil from another liquid. 7. Both stages have separate settling tanks and sludge recycling lines, thus maintaining unique microbial communities in both reactors. 8. The smaller particulate solids are washed away with the backwash fluid and captured usually in a settling tank . 9. He also devised a system of waterworks, comprising three large pumping stations, with their filter beds and settling tanks . 10. Suspended particles in the stream are reduced by approximately 98 % by settling tanks at the beginning of the river.
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