Assessment of low-cost cartridge filters for implementation in household drinking water treatment systems

Abstract

Highlights• Commercial cartridge filters are effective in household water treatment systems.• Upon cake formation, two pleated filters in series removed 100% of turbidity.

Household water purification system comprising cartridge filtration, UVC disinfection and chlorination to treat turbid raw water

“…This mechanism is still dominant when the cake layer is formed above the surface [32]. Previous research hypothesized that other deposition mechanisms, such as inertial impact, interception and Brownian diffusion, also occurs on pleated filters as they observed a removal of particles smaller than the filter pores [12]. As particles were retained, the interstitial water velocity increased.…”

“…As particles were retained, the interstitial water velocity increased. This phenomenon can lead to particle breakthrough and Afkhami [12] observed turbidity removal decline with an increase of pressure and consequent increase of interstitial water velocity. Particle breakthrough was not investigated in the present study since there was considerable variation in the turbidity of the natural study water.…”

“…Pontius [34] showed effective turbidity removal with filters which had smaller size openings, such as 0.45 µm and 0.10 µm. Afkhami et al [12] showed high removal of turbidity with pleated cartridge filters, however they adopted a pressure drop in the system limited to 1 bar and water treatment with artificial turbidity, caused by the addition of kaolinite.…”

“…A previous study investigated commercial cartridge filters treating a daily volume of 250 L, considering turbidity removal and a pressure drop of the filter [12]. The evaluated system required less installation costs and shorter operation times when compared to other filtration systems, such as ceramic filtration or rapid sand filtration.…”

An Efficient Method for Testing the Quality of Drinking-Water Filters Used for Home Necessities

“…On the other hand, the aim was to identify the optimal filter element for the household consumer by using mathematical models based on a series of factors that have a major influence on household consumers [ 16 , 17 , 18 ]. The results of these analyses were followed by the application of optimization methods in decision making, which have the role of validating the results obtained and providing the necessary information based on which household consumers perceive the importance of water consumption with high-quality parameters, the existence of easy possibilities but also efficient and economical solutions to ensure this quality, and, based on scientific results, their ability to decide to invest optimally in the quality filtration–price ratio while achieving the high-quality level of drinking water consumed, a requirement of the proposed desideratum.…”