| Author | Mollah, Md. Raziul Hasan |
| Call Number | AIT Thesis no.WM-98-4 |
| Subject(s) | Groundwater--Bangladesh--Dhaka
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | The need of an optimal management policy for the development of a stream-aquifer
system is a real need all over the world. Especially for a regional stream-aquifer system,
an efficient conjunctive use management model is needed in order to manage the water
resources (both surface water and groundwater resources) so that the resources can be
utilized over the time without degrading the sustainability of the resources.
A linear programming based optimization model is developed incorporating a distributed
parameter groundwater flow model to find out the optimum water abstraction policy
(optimum pumping pattern and surface water supplement) to meet the Dhaka City's
growing water needs. In this study, three-dimensional groundwater flow model
MODFLOW has been used to generate unit responses of the aquifer systems underlying
Dhaka City. The optimization model minimizes the cost of water abstraction from both
resources and is subjected to the allowable drawdown, resource availability and demand
management constraints.
The optimum water abstraction policy from groundwater and surface water for 20 years
(1990-2010) are obtained from the management model satisfying the water requirements
and maximum allowable drawdown at different locations. It is found that the economic
considerations i.e. cost of water abstraction has no significant effect on the water
abstractions rather water demand. The results obtained from the model also indicate that
the decision variables depend on the space and time. |
| Year | 1999 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Gupta, Ashim Das,; |
| Examination Committee(s) | Suphat Vongvisessomjai ;Loof, Rainer; |
| Scholarship Donor(s) | DANIDA ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1999 |