Assessment of various methods to remove pathogen from raw water to meet WHO standard for domestic consumption
Assessment of various methods to remove pathogen from raw water to meet WHO standard for domestic consumption
- Author(s): M.R. Karim ; M.A.I. Khan ; O.S. Chowdhury ; R.R. Niloy
- DOI: 10.1049/cp.2018.1508
For access to this article, please select a purchase option:
Buy conference paper PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
7th Brunei International Conference on Engineering and Technology 2018 (BICET 2018) — Recommend this title to your library
Thank you
Your recommendation has been sent to your librarian.
- Author(s): M.R. Karim ; M.A.I. Khan ; O.S. Chowdhury ; R.R. Niloy Source: 7th Brunei International Conference on Engineering and Technology 2018 (BICET 2018), 2018 page (4 pp.)
- Conference: 7th Brunei International Conference on Engineering and Technology 2018 (BICET 2018)
- DOI: 10.1049/cp.2018.1508
- ISBN: 978-1-83953-002-9
- Location: Bandar Seri Begawan, Brunei
- Conference date: 12-14 Nov. 2018
- Format: PDF
This study was performed to evaluate the microbiological effectiveness of four commonly used Household Water Treatment (HWT) technologies like Mineral Pot Filters (MPF), Chlorination, Ultra Violet (UV) Radiation, and Coagulation and Sedimentation. Controlled laboratory experiments were conducted with two types of test waters with E.coli concentration greater than 105 CFU/100 mL according to WHO guidelines. The experimental results showed that the four HWT technologies can be classified as Highly Protective (yielding a microbial log10 reduction value (LRV) greater than 4) according to WHO guidelines. For coagulation and sedimentation, increased alum dosage rendered several unwanted physico-chemical properties to the treated water. Coagulation and sedimentation can be classified as Protective (yielding a LRV of 2-4) for alum dose up to 26 mg/L and Highly Protective for alum dose greater than 26 mg/L. MPFs from two brands used in this experiment showed varying filtration rates but exhibited similar microbial efficiency with a LRV greater than 4. Chlorination with a dose of 0.02 mg/L with a contact period of 20 minutes yielded Highly Protective results and for UV radiation, 30 minutes of exposure time for a 6 W (254 nm) UV lamp was required to produce Highly Protective results.
Inspec keywords: sedimentation; coagulation; filtration; health and safety; ultraviolet radiation effects; water supply; standards; water treatment; microorganisms
Subjects: Public utilities; Industrial processes; Environmental issues; Health and safety aspects
Related content
content/conferences/10.1049/cp.2018.1508
pub_keyword,iet_inspecKeyword,pub_concept
6
6