Hach-Lange RTC112 SD-Module - Manual (Page 15)

15
General information
Figure 4 Adjustment of the feed flow rate to fixed polymer dosing rate
1 Digester 8 Pump for polymer dosing (constant)
2 Static thickener or sludge storage 9 Mechanical sludge dewatering device
3 TSS measurement from the influent 10 Dewatered sludge
4 Open-loop control for the feed flow rate 11 Centrate
5 RTC112 SD-Module 12 Option: Measurement of the TSS concentration in the
centrate
6 Pump for open-loop control of the feed flow rate 13 Option: Measurement of the TSS concentration in the
dewatered sludge instead of centrate
7 Polymer supply