Project Name: Research into multi-stage filtration units (MSF)
Name of Client: APSU/DFID
Period: July 2004 to June 2005 (12 Months)
Description of Project:
In order to develop appropriate design criteria for multi-stage filtration (MSF) units for use of Bangladesh, a research was undertaken by ITN-BUET for the Arsenic Policy Support Unit (APSU).
The MSF system considered under the research comprised of three units; Dynamic Roughing Filter (DyRF) unit, Up-flow Roughing Filter (URF) unit and Slow Sand Filter (SSF) unit.
A number of research works were carried out in Bangladesh to develop units for treating water from surface water sources. However, in optimizing appropriate treatment procedures, more work is required in particular to use the successful experiences gained in other developing countries in using multi-stage filtration plants. Key areas to be investigated in Bangladesh include the evaluation of more efficient down-flow and up-flow configurations, identification of appropriate media size and type for removal of physical, microbial and chemical contamination.
The specific objectives were:
- Design and construct a laboratory-scale model multi-stage filtration (MSF) units;
- Investigate the water quality improvement performance of laboratory model unit;
- Determination of appropriate design criteria for MSF units for use in Bangladesh.