Swachh Warangal Training Programme for Toilet Builders 2016

1. Swachh Warangal • Training Programme for Toilet Builders 2016

2. Introduction to DRDO Bio-Digester Mason’s Training Programme on Toilet construction

3. What are common disadvantages to all the systems dealt so far?

4. Disadvantages common to all the systems Require Large area Require periodic sludge removal Treatment level upto 60% can only be achieved

5. Can we have a system that occupies less space and does not have to be desludged?

6. Solution?? DRDO Bio-Digester Aerobic Bio-tank

7. DRDO Bio-Tank

8. DRDO Bio-Tank Developed By Defence Research and Development organisation to attend to the needs of a compact and low O&M onsite treatment system.

9. Working principle Partially treated water passes through reed bed for further treatment – elimination of smell and colour The bacteria needs to be inoculated in the beginning Later on they grown on their own Decomposition of feacal matter take place in chamber Biogas : Use for cooking Reed Bed Faeces enters into chamber Appearance of water at different level

10. Components of bio tank Filtration system Three components OR Super structure Underground tank Soak Pit

11. Construction The underground tank can be constructed using various materials Civil Construction Fibre Reinforced Vinyl Stainless Steel • Low Cost • Uses locally available resources • Low Cost • Easy in transportation • High Cost • Used for mobile applications

12. Lets understand the model using a case study for one household

13. Assumptions No. of persons Water used for flushing per person per day 4L 5

14. Underground Tank design Components of Bio Tank design 3. Soak Pit 1.Superstructure 2.Underground Tank

15. Plan : Bio Tank Confused?? Lets understand through a Live Model

16. Section of Bio Tank Component 1: Bio Tank 700 mm

17. Underground tank design in detail RCC Slab of 100mm thick Vent Pipe All Pipe diameter: 4” 100 mm 100 mm 150 250 mm 1250 mm 950 mm 700 mm 300 mm 520 mm 380 mm 380 mm 230 mm, brick masonry with water proof plastering Poly grass mat

18. Construction Tanks can be of various chambers – Suggested for 1 household is 3 chambers

19. Construction Poly grass being attached to the walls of the Tank

20. How do we fix the Poly grass mat?

21. Poly grass mat

22. Resources required for Poly Grass holding Poly grass Screws Aluminum Strips

23. Poly Grass Holding 200 SS Plate 30mm x 2mm or Aluminium strip 40mm x 2mm 300 Bolt SS-M8 Screw Poly Grass Sheet

24. Soak Pit Bio – Digester only treats wastewater partially, after this we must either provide a soak pit or reed bed Soak Pit : Discharge into ground Reed bed: Reuse water for agriculture or gardening

25. Design of Pit

26. Section of Pit Diameter = 1 Metre Height = 4 - 5 Feet

27. Plan of pit Diameter = 1 Metre

28. Soak pit (detail) 200 mm above ground – Provided to avoid flood water to enter 100 mm thick top slab with two handles of 10 cm dia each should be provided • 100 mm for areas with low rainfall • 150 mm for areas with medium rainfall • 200 mm for areas with high rainfall • 250 mm for flood prone areas Ground level 4 inches dia PVC pipe placed in a slope of 1:10 (The slope is based on water usage) – The inlet to the pit should reach the middle of the pit in order to maintain equal distribution This ring is provided to support the inlet pipe Brick Bat to be layered for 2 rings height – 2 feet height – Provided for filtration 1.5m 4 rings to be provided for filter materials – Each ring height is 1 feet (0.3 meter) – Total height should not be more than 1.5 meter Gravel to be layered for 2 rings height – 2 feet height – Provided for filtration

29. Reed Bed

30. Reed Bed • Aerobic treatment (in the presence of oxygen) • Reed Bed consist of plants (reeds) & filter materials (graded gravels, river pebbles) • The filter is permanently soaked (up to 50 cm from bottom) in water • The flow direction is horizontal • Filter is made of different size gravels

31. Post Construction

32. Inoculation Inoculation of Bacteria

33. Cost estimates

34. Authorised agency by DRDO

35. Aerobic Bio toilets

36. Aerobic Bio tanks • Bio-Toilet is a • Aerobic system that decomposes organic waste into CO2 and H20 • Advantages: • Very efficient in treating wastewater : can treat in 24 hours time • Available in portable as well as fixed modules • No need for periodic desludging • No frequent addition of bacteria • Life of the prefabricated system – 50 years

37. Video

38. Types of Bio Toilet Mobile toilets Prefabricated toilets Stationary toilets

39. Working Disinfection chamber Disinfectant Bio Digester Bacteria Treated Water Series of chambers : Aerobic decomposition

40. Layout

41. Step involved in installation of Bio toilet

42. Cost of Bio toilets 20,000/- (toilet including super structure. Cost depends upon material of construction.)

43. Supplier Details Product Name: Enbiolet Bio Toilet Promoting Company : Stone India Limited Office Location: Mumbai, Delhi, Himachal Pradesh, Kolkata and Chennai

44. Any further questions? … Thank You!