1 AIT Asian Institute of Technology

Quantitative assessment of river management strategies : a case study of Surabaya River, East Java, Indonesia

AuthorSepta Rendra
Call NumberAIT Thesis no.EV-96-33
Subject(s)Water quality management--Indonesia--Surabaya River

NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering
PublisherAsian Institute of Technology
AbstractThe Surabaya River plays a very important role for the water supply of the people in Surabaya city of Indonesia. But pollution load from more than 40 industries and 26,000 people in the basin causing the deterioration of water quality of the river day by day. It is necessary to solve the river pollution problems and to improve the water quality. Therefore, management strategies for pollution control should be carried out for the River. A MIKE 11 river model has been used to assess quantitatively the potential effects of reduced BOD loading to the Surabaya River. The model is dynamic in nature, which includes the dominant hydrodynamic processes of the river as well as the BOD loading and is linked to oxygen conditions. The model has been calibrated based on the variation of the full yearly hydrodynamic conditions as well as the BOD and DO concentrations in the year of 1993. Using the model, scenarios of BOD/DO conditions after implementation of several BOD reduction to the river have been carried out. The results of the study shows that water quality at most locations of the Surabaya River fails to meet the standard. It is recommended that the upstream, tributaries, domestic, and industrial BOD load have to be reduced by more than 65% for the improvement of water quality. However, the industrial BOD concentration must be reduced by more than 90% in order to fulfill the industrial effluent standard. Regular monitoring program must be carried out to achieve water quality control effectively. The present study shows that numerical model is useful to quantify the influence of wastewater discharge to the water quality. It can be use as a parts and tools for the implementation of river management strategies.
Year1996
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentDepartment of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC))
Academic Program/FoSEnvironmental Engineering and Management (EV)
Chairperson(s)Kamei, Tasuku;
Examination Committee(s)Chongrak Polprasert;Reutergardh, Lars B.;Hansen, Ian Sehested;
Scholarship Donor(s)Government of The Republic of Indonesia;
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1996


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