환경영향평가

WWTPs should given here. Table 10.1 shows the results of some hundred measurement results from different parts of different WWTPs(Frechen 2000). Table 10.1. Overview over specific odorant flow rates from wastewater treatment plant sources. Specific odorant from ou/() flow rate to ou/() Part of plant Water surface influent channel 200 1,200 Aerated grit chamber 500 20,000 Grease trap 2,000 40,000 Screening 1,000 5,000 Grease from grease trap 1,000 15,000 Sand from grit chamber 1,000 6,500 Primary sedimentation tank: surface 500 4,000 Primary sedimentation tank: weir area 500 5,000 Aeration tank: anaerobic part 850 3,000 Aeration tank: anoxic part 600 2,000 Aeration tank: aerobic part 300 1,700 Final sedimentation tank 150 500 Filtration 100 200 Primary sludge thickener 12,000 35,000 Stabilised sludge thickener 500 5,000 Stabilised sludge, dewatered 600 16,000 Some additional remarks are necessary. The range given in this table shoul…
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