engineering recuitment HPCL Engineer Mock Test 2024 Environmental Engineering Sewage Sewage Treatment
The domestic sewage of a town was tested for total solids and following results were obtained :
Weight of sample of sewage =1000 gm
Weight of solids after evaporation of liquid = 0.952 gm
Weight of dry residue after ignition = 0.516 gm
Then Weight of Volatile Solids after Ignition = ?
1
0.436 gm
2
0.952 gm
3
0.516 gm
4
1.468 gm