Power point presentation of 3 no STP installed by bidders of Mukatsar STP - Report on study tour- at Amabttur Chhenai

1. STP Study M/s HydrotechParyavaran India Pvt Ltd CAA II UC Chennai Auto Ancillary Industrial Infrastructure Up gradation Company Ambattur Industrial Estate Near HCL Unit - V Chennai

2. STP (Gross Size 30 mt x70 mt)

3. View of STP from Top

4. Coarse Bar Screen (Constructed earlier but renovated by the firm ) Coarse Bar Screen Circular Tank Diameter 3 m depth 5 mt

5. Grit Chamber - constructed earlier Grit Chamber I Diameter 4.5 mt depth 6.5 mt RCC const Grit Chamber Ii Dia 5.0 mt depth 6.5 RCC Construction

6. Pumping Station Submersible Pump set 2 no ( 1 +1 standbye) each of 7.5 HP Collection tank dia 4.0 mt depth 6.5 mt RCC

7. Bye Pass structure Not in use @the Time of visit

8. STP Control Unit (Inside Brick Masonry Room)

9. CI Inlet Pipe( i/d 300 mm 2 no) to Equalization Tank

10. Collection Tank Cum Equalization Tank Inlet (One Inlet pipe no effluent) Excess effluent again fed to tank Diameter 11 mt Depth RCC Const 3.8 mt

11. Over flow Out Let at Equalization Tank

12. Electric Control of Two no Submersible Pumps at Equalization Tank

13. Stilling Chamber Rectangular- RCC

14. Fine Bar Screen Two numbers

15. Grit Chamber

16. FAB II (dia 7.3 mt ) Out let of FAB II to Clarifier Media in FAB II

17. MBBR Bio Reactor FAB I Oil and Grease in F AB I MBBR Media in FAB I

18. Return sludge in FAB I Return sludge Pump 2 HP Return Sludge fed in to FAB I Pipe dia 63 mm

19. Air Compressor Unit( 3 no Compressors)

20. Air compressor distribution Header

21. Sludge and Grit Out lets to sludge bed Grit out let from Grit Chamber Sludge out at FAB I

22. RCC Clarifier (Dia 8.7 mt)

23. Clarifier Out fall to disinfection Settled Effluent at the out let of clarifier

24. Disinfection unit

25. Steel structures ( like stair and Platform)

26. Sludge Bed

27. Sludge infilitrate collection sump

28. Sludge Distribution

29. Out Let Houdi and Out let into pond

30. Katcha Pond used to collect Treated effluent

31. Raw sewage and Treated Sewage

32. Lab at Site

33. Inspecting Team

34. Observations Oil and grease has been observed in the FAB I so this needs to be removed at preliminary stage by constructing oil and grease trap . This may constructed by department also Return sludge is being fed in to FAB I . Normally in MBBR return sludge is not fed STP was not running at Full capacity at the time of visit and no discharge meter was installed to check the flow Disinfection needs to be done regularly Handling and Disposal of sludge agreement needs to be finalized with the operator Plant was in good working condition . Lab should have more testing equipment Flow meter should be installed at STP Following officers were present during visit 1. Mr S Srinivasan Director and Mr N Palaniraja Chennai auto Ancillary Industrial Infrastructure Up gradation Company 2.Mr RakeshVermaSr Manger Projects M/s Hydro Tech Paryavaran India Pvt Ltd 3Mr S Selvam Site Engineer M/s Hydro Tech Paryavaran India Pvt Ltd Mr S Srinivasan is satisfied with the performance of the Plant executed by M/s Hydro Tech Paryavaran India Pvt Ltd Project was allotted on June 19 2006 vide CAAIIUC/STP and WTP /920 dt 19/6/2006 and completion time was 15 months and it was completed June 17 2009 .The delay needs to be explained .and cost overruns if any needs to be checked .