Hach-Lange RTC113 ST-Module - Manual (Page 16)

16
General information
Figure 5 Adjustment of the feed flow rate to the specified polymer dosing rate
1 Static thickener 8 Pump for polymer dosing: constant here
2 Influent 9 Mechanical sludge thickener
3 TSS measurement from the influent 10 TSS measurement in the thickened sludge outlet
4 Open-loop control for the feed flow rate 11 Closed-loop control for the feed flow rate
5 RTC113 ST-Module 12 Thickened sludge pump
6 Pump for open-loop control of the feed flow rate 13 Digester
7 Polymer supply