satisfy EU UWWT 19 000 tons Directive. Tertiary N/yr (in 1995) treatment with to 14000 ton/yr, nitrogen removal i.e. a reduction increased from ca.30 of 7 000 ton/yr. % to 70 % between 2. The measure 1990-2012. The was estimated degree of to reduce N purification is still load to KAT and gradually improving. BAP by almost 2000 ton/yr, 2. An update of since most Regulation SNFS mwwtps are 1994:7 in 1998 which situated at or require increased N near the coast. reduction for mwwtps > 3. Calculated 100 000pe. The reduction was measure was ca.50 tons P/y estimated to reduce from N load by 2000 ton treatment N/yr at site. facilities. For the bigger mwwtps 3. P-free detergents, the calculated 2011. The measure effect was was estimated to rather reduction reduce N loads by of the chemical 2000 ton/yr at site. coagulant 4. It´s difficult to quantify the
satisfy EU UWWT Directive. Tertiary treatment with nitrogen removal increased from ca.30 % to 70 % between 1990-2012. The degree of purification is still gradually improving. 2. An update of Regulation SNFS 1994:7 in 1998 which require increased N reduction for mwwtps > 100 000pe. The measure was estimated to reduce N load by 2000 ton N/yr at site. 3. P-free detergents, 2011. The measure was estimated to reduce N loads by 2000 ton/yr at site. 19 000 tons N/yr (in 1995) to 14000 ton/yr, i.e. a reduction of 7 000 ton/yr. 2. The measure was estimated to reduce N load to KAT and BAP by almost 2000 ton/yr, since most mwwtps are situated at or near the coast. 3. Calculated reduction was ca.50 tons P/y from treatment facilities. For the bigger mwwtps the calculated effect was rather reduction of the chemical coagulant 4. It´s difficult to quantify the