Show simple item record

dc.contributor.advisorMissimer, Thomas M.
dc.contributor.authorMantilla, David
dc.date.accessioned2013-05-19T06:30:47Z
dc.date.available2013-05-19T06:30:47Z
dc.date.issued2013-04
dc.identifier.doi10.25781/KAUST-3S203
dc.identifier.urihttp://hdl.handle.net/10754/292303
dc.description.abstractShuqaiq-II IWP is a combined RO water desalination and power plant facility. It operates with an open intake that feeds the plant with 100,000 m3/h of raw water. The facility is located 140 km north of Jizan, in a small bay where the run-off discharges of two wadis converge. The run-off coming from the wadis are rich in alluvial sediments that dramatically decrease the raw water quality at the intake point, causing periodic shutdowns of the plant and increasing the operational cost due to membrane replacement. Subsurface water intakes are an alternative for improving raw water quality, as they provide natural filtering of the feed water as it flows through the systems. In this type of system water flow through the sediment matrix is induced and during the percolation, several physical, chemical and biological processes take place, cleaning the water from particulate matter, resulting in high quality feed water that can be directly sent to the RO process without any additional pretreatment. A full hydrogeological profile of the seabed needs to be performed in order to determine the applicability of one of these systems in each particular location. In this study, 1 km of beach area at Shuqaiq-II IWP was surveyed. Ninety-one (91) samples from the shore and offshore sediments were collected and analyzed for hydraulic conductivity, porosity and grain size distribution. The laboratory analysis showed that the construction of the seabed galleries was technically feasible, and the proposed intake system was design to meet the feed water requirements for the RO facility (530.000 m3/d). The preliminary design consists of 17 cells in total, 16 of which will be in constant operation, and 1 alternate for whenever maintenance is needed in one of the other cells. The seabed gallery design includes 5 layers of sands with a total depth of 5 m. A detailed underdrain design methodology is presented. The system would be operated at an infiltration rate of 10 m/d and an average hydraulic retention time of 7h. Each cell will have an area of 3.500 m2 that will supply 35.000 m3/d of feed water to each RO train.
dc.language.isoen
dc.subjectSWRO pre-treatment
dc.subjectsea bed gallery
dc.subjectslow sand filteration (SSF)
dc.subjectdesalination
dc.subjectwater intake
dc.subjectinfiltration galleries
dc.titleFeasibility for Use of a Seabed Gallery Intake for the Shuqaiq-II SWRO Facility, Saudi Arabia
dc.typeThesis
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberAmy, Gary L.
dc.contributor.committeememberSaikaly, Pascal
thesis.degree.disciplineEnvironmental Science and Engineering
thesis.degree.nameMaster of Science
refterms.dateFOA2018-06-13T09:48:04Z


Files in this item

Thumbnail
Name:
ThesisDavidMantilla.pdf
Size:
9.742Mb
Format:
PDF
Description:
ThesisDavidMantilla

This item appears in the following Collection(s)

Show simple item record