| Author | Keyvani, Nasser |
| Call Number | AIT Thesis no. 1091 |
| Subject(s) | Factory and trade waste
|
| 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 | The wastewater from the steel mill factory is rich in iron scale
content. On the basis of the flow measurement and the characteristics of the waste, it is observed that the flow varies from 510 to 710 m3/hand the iron concentration from 19 to 25 mg/1. Since the wastewater
does not meet the existing effluent standards, particularly in terms of iron content, treatment of the waste is necessary. From the in-plant evaluation it is concluded that the activities in
rolling mill and casting are mainly responsible for this waste generation. The treatment of the waste with sedimentation is found satisfactory. From plain sedimentation and settling column tests, it is found that a
theoretical detention time in sedimentation basin of 120 min. could give supernatant iron level of 2.4 and 2.6 mg/1 respectively. From continuous treatment studies with a laboratory scale unit, it is found that a detention time of 120 min. with an overflow rate of 2.6 m3/m2-day could give supernatant iron level of 2.64 mg/1. |
| 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. ;Edwards, Peter
|
| Scholarship Donor(s) | Government of Canada |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1977 |