Abstract
A conventional design of rainwater harvesting system collects and directs the rainwater through water piping from roof of building to the water storage. The filtration system which locates before the water tank storage and first flush bypass system is the main focus of the research. A filtration system consists of a control volume of filter compartment, filter screen (stainless steel mesh) and water piping that direct the water flow. The filtration efficiency of an existing filter “3P Volume Filter VF1” by industrial company is enhanced. A full scale filter design prototype with filter screen of 1000 μm stainless steel metal mesh is tested to compare with the original filter system design. Three types of water inlet setups are tested. Among the proposed water inlet setups, the 90° inlet setup with extension provides the best filtration rate per unit time, following by the 45° inlet setup. The 45° and 90° inlet setup has similar filtration efficiency at low to medium flow rate while 45° inlet setup has better efficiency at high flow rate. The filtration efficiency with the 90° inlet setup with extension is observed to maintain at highest value at medium to high flow rate. The overall filtration performance achieved by the 90° inlet setup with extension at low to high flow rate is between 34.1 to 35.7%.
Highlights
Rainwater harvesting practice can be traced since thousands of years using different types of techniques to collect and store the rainwater from rooftops and land surfaces
A conventional rainwater harvesting system consists of four major components which are shown as Fig. 1
Filration system which locates before the water tank storage and first flush bypass system is the main focus of the research
Summary
Rainwater harvesting practice can be traced since thousands of years using different types of techniques to collect and store the rainwater from rooftops and land surfaces. A conventional design of rainwater harvesting system will collect and direct the rainwater through water piping to the water storage [1]. A simple rainwater filtration process is carried out before it is stored in storage. Rocks, debris and dusts are removed at the filtration process to avoid the risk of clogging up in the water storage. The rainwater will first be collected by the catchment area at the rooftop. A filtration system consists of a control volume of filter compartment, filter screen (stainless steel mesh) and water piping that direct the water flow
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
