Successfully reported this slideshow.
Upcoming SlideShare
×

# Kasur tanneries waste mnagment agency (ktwma)

10,911 views

Published on

please comment on the report if you visit...:)

• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

### Kasur tanneries waste mnagment agency (ktwma)

1. 1.
2. 2. Muhammad ImranNawaz<br />Student of BSc. Environmental Engineering<br />University of Engineering & Technology Lahore<br />
3. 3. KTWMA<br />Kasur Tanneries Waste Management Agency<br />
4. 4. Establishment<br />The government of Pakistan and United Nations Development Program (UNDP) signed the Kasur Tannery Pollution Control Project document in January 1996.<br />UNDP allocated US\$ 2.5 million, whereas the local input was Rs. 199 million.<br />
5. 5. Inflow Wastewater<br />Comes in two drains from the Tanneries.<br />Two drains comes side by side along the road coming from tanneries to the treatment plant<br />
6. 6. Flow measurements<br />Drain 1 :<br />Width = 145 cm = 1.45 m<br />Depth = 54 cm = 0.54 m<br />Velocity of wastewater = 0.13933 m/s<br />Flow = 0.1091 m3/s<br /> = 9426.32 m3/d <br />
7. 7. Flow measurements<br />Drain 2 :<br />Width = 90 cm = 0.9 m<br />Depth = 54 cm = 0.54 m<br />Velocity of wastewater = 0.28575 m/s<br />Flow = 0.1388 m3/s<br /> = 499.94 m3/hr<br /> = 11998.75 m3/d <br />
8. 8. Flow measurements<br />The total discharge coming towards treatment plant is:<br />From Drain 1 ( Q ) = 9426.32 m3/d<br />From Drain 2 ( Q ) = 11998.75 m3/d<br /> = 9426.32 + 11998.75<br />Total Discharge = 21425.07 m3/d<br />
9. 9. Discharge inflow drain<br />
10. 10. Bar screening<br />Manual bar screening:<br /> Larger suspended particles are removed<br />Pore size is of 60 mm<br />Removes about 90 % of the suspended particles<br />This is done manually<br />
11. 11. Manual bar screening<br />
12. 12. Manual bar screening<br />
13. 13. Bar screening<br />Mechanical bar screening<br />After Manual bar screening mechanical bar screening is done<br />The pore size of mechanical bar screening is 6 mm<br />About 95 % of suspended solids are removed<br />
14. 14. Mechanical bar screening<br />
15. 15. Distribution of wastewater to the aeration Tanks<br />A gate valve is installed to control the flow<br />further WW is distributed into two drains which goes to the Aeration tanks<br />
16. 16. Distribution of wastewater to the aeration Tanks<br />
17. 17. Aeration Tanks<br />There are two large aeration tanks<br />Each tank has 8 surface aerators<br />WW is spread in the aeration tanks and aeration is done<br />Detention time is of one day<br />
18. 18. Aeration Tanks<br />Dimensions of each tank:<br />Width = 32.5 m<br />Length = 65.0 m<br />Depth = 4.7 m<br />Volume= 6337.5 m3<br />Total volume of both tanks = 12675 m3<br />
19. 19. Aeration Tanks<br />
20. 20. Aeration Tanks<br />
21. 21. Aeration Tanks<br />Surface Aerators<br />
22. 22. Aeration Tanks<br />Surface Aerators<br />There are 16 aerators in both the tanks<br />Power is 30 KW<br />Oxygen transfer is of 1.6 kg O2 /Wh<br />
23. 23. Pumping system<br />Wastewater is pumped from the aeration tanks to the sedimentation tanks.<br />Three pumps installed for this purpose<br />Two pumps are working and the third one is a stand by pump. <br />
24. 24. Each pump has :<br />Flow = Q= 350 m3 /h<br />Head = 12 m<br />Two pumps has a power of 18 KW<br />One pump has a power of 24 KW<br />
25. 25. Pumping system<br />
26. 26. Distribution of wastewater to the sedimentation tanks<br />
27. 27. Sedimentation tanks<br />There are two sedimentation tanks<br />Each tank has dimensions of :<br />Diameter = 18 m<br />Depth = 3 m<br />Volume = 611 m3<br />Detention time of 5 – 7 days<br />
28. 28. The equalized effluent is entered to the clarifier for settling under gravity<br />settled sludge is scrapped from the bottom of the tank with the help of the sludge scrapper.<br />
29. 29. Clarifires<br />
30. 30. Clarifires<br />
31. 31. Weirs / V-Noches<br />
32. 32. Wastewater Lagoons<br />Water from clarifiers goes to the wastewater lagoons<br />There are 32 lagoons, 16 on each side.<br />Totally natural process occur in lagoonsin which the water is placed in the lagoon more than 5 days and during this time period many inorganic and biological reactions take place.<br />
33. 33. Wastewater lagoons<br />
34. 34. The organic layer is laid on the bedding and then water is placed on it the function of this geo layer is that wastewater will not seep into the soil.<br />
35. 35. Organic Layer over bedding <br />
36. 36. Collection of water from lagoons<br />
37. 37. Collection of water from lagoons<br />
38. 38. After collecting water from the lagoons it is made to fall in the PANDOKI Drain<br />Which after all goes to SATLUJ River.<br />
39. 39. Sludge collection and sludge lagoons<br />
40. 40. Sludge Lagoons <br />
41. 41. Sludge Lagoons<br />
42. 42. Dumping Site<br />
43. 43. Flaws<br />ETP is not working properly<br />Half of the wastewater is used to bypass threough the Pandoki Drain directly without any treatment.<br />
44. 44. Bypass of wastewater<br />
45. 45. Pandoki Drain<br />