| Author | Qureshi, Mohammed Shoaib |
| Call Number | AIT Thesis no. 1092 |
| Subject(s) | Factory and trade waste--Research
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | Study reported herein was conducted to study the quantitative and qualitative nature of the waste from Crescent Sugar Mills and Distillery Ltd., Lyallpur, Pakistan. The feasible and economical treatment was evaluated for the wastewater from sugar, board and distillery plants. Wastewater quantities and characteristics at all the sampling points were variable. The probability plots were drawn to select the reasonable
values. The fifty percentile values for sugar and board wastewater are 1680 m3/d and 1180 m3/d respectively. For distillery ninety percentile
value 235 m3/d is recommended. The distillery waste has the maximum organic load with COD as 92,000 mg/1. Batch treatability study entailed that sugar and board waste are aerobically treatable. The distillery waste can be stabilized anaerobically. Jar tests concluded that the board waste can be chemically treated with
alum. It has a COD removal of 77% with an alum dose of 400 mg/1 and kuri floc 0.4 mg/1. The effluent has a COD of 396 mg/1. Settling test revealed that a detention time of ninety minutes can remove the suspended solid by 90.2%, at a flow rate of 13.24 m3/m2-d. Aerated lagoon can remove the COD load by 99.1% of the sugar waste with a detention time of 2 days at an organic loading of 0.43 kg C0D/m3-d. In the case of board waste, the aerated lagoon can have a COD removal of 87.3% at a loading of 0.44 kg C0D/m3-d with 3 days detention time. The
design parameters for ECKENFELDER (1967) are evaluated. Distillery waste
has 88% COD removal when it is treated in a digester at thermophilic temperature at a loading of 8.3 kg C0D/m3-d with 11 days detention time. The
anaerobic lagoon at loading of 4.6 kg C0D/m3-d with 20 days detention time has a COD removal of 84.5% which is the most economical treatment.
The recommendations are made to reduce the wastewater and pollution. The distillery waste can be reduced by more than fifty percent. |
| Year | 1977 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Nguyen, Cong Thanh |
| Examination Committee(s) | Ouano, E.A.R. ;Samorn Muttamara |
| Scholarship Donor(s) | Government of the United Kingdom |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1977 |