No abstract

No abstract

Munich has been studying denitrification in effluent filters, as has been practiced in the USA for over 15 years in a full scale demonstration, pilot- plant for over a year (October 1991 through October 1992). The results have been very encouraging; in spite of very low wastewater temperatures, a high degree of denitrification has been achieved very economically. Excellent BOD5 and COD effluents have been achieved. At the same time P-removal has improved. Nitrite has always been low. This was done at dry weather hydraulic loads averaging 4.4 m/hr with a daily peak of 6 m/hr and storm water maximums of 14.4 m/hr. Additional smaller scale, pilot studies were begun in May 1993, whose object is to optimize the technology under European conditions.

No abstract