Optifloc

Questionnaire

General information:

1. Name and address of treatment plant

.…………………………………………………………………………………………………….

………………………………………………………………………………………….………….

2. Contact person: ………………………………………………………………………………….

Tel: ……………………………………Fax:…………………………e-mail:…………………….

3. Sludge disposal method: ………………………………………………………………………….

Dewatering Process:

4. Briefly describe the sludge processing train: ………………………………………………………

…………………………………………………………………………………………………….

5. Type of sludge (anaerobic/mixed etc): ……………………………………………………………

6. Daily sludge production (dry tons per day): ………………………………………………………

7. Average feed solids, %TS: ………………………8. Average cake solids, %TS: …………………

9. Sludge line size:………………………………….10. Sludge flow to each press: ………………….

11. Distance from mixer to dewatering device: ……………………………………………………….

12. Type of polymer used (dry cationic, cationic emulsion, mannich, etc.): …………………………....

13. Polymer dosage (weight of undiluted polymer per dry ton of sludge):

Average:…………………………………….Range:………………………………………………...

14. Dewatering priorities/problems: (polymer costs, cake solids, filtrate quality)? ………………….......

…………………………………………………………………………………………………… …

Cost Data:

15. Annual polymer cost, $/year: ……………………………………………………………………….

16. Annual fuel cost for sludge incineration, $/year: ..……………………………………………...........

17. Disposal fees for dewatered sludge, $/yr or $/wet ton: …………………………………………......

18. Polymer cost, $/kg or $/lb: ………………………………………………………………………….

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