Abstract:For municipal treaunent of wastewater, the space-saving 10 m deep basins biological treaunent is an interesting alternative to conventional activated sludge basins of shallow construction. Results of pilot tests in the Berlin-Ruhleben wastewater clarification plant have shown that the biological P-elimination, nitrification and denitrification processes can be implemented as in shallow basins. However, the activated sludge did not settle satisfactorily. So flotation was implemented in the process for secondary… Show more
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