Table 2.4 Wastewater treatment plants investigated in Sweden and concentrations of Triclosan in sludge samples (Svensson 2002) Leachate WWTP Process PE Yes No Anaerobic digesting of sludge Important connection Sludge production year 2001 (ton dw) Triclosan in sludge (mg/kg dw) <1,000 PE Bohus- Malmön MC 400 X House hold 23 2.1 1,000-5,500 PE Donsö (Göteborg) M B¹C 2,000 X House hold 40 0.47 Brålanda (Vänersborg) M B²C 2,250 X Food industry 217 0.34 Rävlanda M B²PC 2,600 X House hold 105 3.7 Herrljunga M B²C 3,880 X Photo laboratory 57 0.35 Munkedal M B¹C 4,000 X House hols 240 0.53 Tranemo MC B² 5,000 X Glas & color industry 497 0.34 Karlsborg M B²C 5,200 X Military & mechanical industry 181 0.18 5,500-20,000 PE Vara MC B²C 6,360 X X Laundry 160 0.45 Lysekil M B¹C 8,000 X X Fish industry 643 1.2 Ulricehamn M B¹C 8,725 X X Mixed industry 293 5.1 Åmål M B²C 10,000 X X Tool industry 264 0.028 Skara M B 1,3 ,4 C 14,000 X X Dairywork slaughterhouse 655 0.38 Stenungsund M B⁴PC 14,500 X Mixed industry 380 0.20 Skene M B²C 17,220 X Textile industry 992 0.26 >20,000 PE Alingsås M B¹C 23,931 X X Laundry & food industry 801 6.4 Lidköping M B⁴C 28,160 X Mixed industry 1,246 1.3 Uddevalla MC B²C 38,000 X X Mixed industry 1,038 0.18 Ryaverket M B²C 605,526 X X Large city 1,3512 0.035 M:   Mechanical; C: Chemical; B: Biological; P: Biological phosphate removal 1: Bio-filter 2: Activated sludge 3: Sequency Batch Reactor (SBR) 4: Activated sludge – aerobic and anoxic treatment