Removal of E. coli and Salmonella in pot ceramic filters operating at different filtration rates

Pérez-Vidal, Andrea; Sánchez, Sandra Patricia Rivera; Flórez-Elvira, Liliana Janeth; Silva-Leal, Jorge Antonio; Díaz-Gómez, Jaime; Herrera-Cuero, Luisa Fernanda; Botero, Lina Paola Lopez

doi:10.1016/j.watres.2019.05.028

Cited by 12 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pot filters can reduce the E.coli and Salmonella sp. content to between 10 2 to 10 3 CFU/ml (flow rate between 1 and 3 L/hour) [29]. All coliform were successfully removed by using a combination of a ceramic sphere in an up-flow column filter followed by silica sand downflow [23].…”

Section: Filtrate Qualitymentioning

confidence: 99%

The potency of fern stem as the carbon material for clay-based ceramic filter

Ciawi

Salain

Sutapa

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The provision of clean water is still a very serious problem in some places. Many times, water is available in abundant quantities but the quality does not meet human needs. On the other hand, there is a lot of locally available raw materials available for producing ceramic filters which in turn can be used to produce clean water from polluted water. The wild and domesticated fern grows widely in Southeast Asia. The stem can be used as the carbon material for producing filters. This study aims to utilize the fern stem as indigenous material to produce an affordable, easy to use, robust clay base water filter for the less advantaged communities. Chopped fern stem mixed with clay in several compositions (50%, 60%, 70%, 80%, 90% clay), shaped to produce 2 cm thick biscuits with 10 cm diameter, and dried for one week at room temperature and then fired at 9000C overnight. It was found that biscuits with 50% and 60% clay can be used as filters and filter with 50% clay produced filtrate with a better quality which meets the Indonesian standards for class two water which is water for drinking but not potable water. Therefore the fernstem is a potential raw material for ceramic filter production.

show abstract

Section: Filtrate Qualitymentioning

confidence: 99%

The potency of fern stem as the carbon material for clay-based ceramic filter

Ciawi

Salain

Sutapa

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…However, most of the research has only investigated one species of bacteria or a group of resistant bacteria, such as Pseudomonas aeruginosa strains ( Mombini et al, 2019 ), aminoglycoside-resistant bacteria ( Ullmann et al, 2019 ), Escherichia coli , and Salmonella spp. ( Perez-Vidal et al, 2019 ), and the presence of β-lactamase-producing Gram-negative bacteria ( Torkar and Drazetic, 2017 ). There has been limited comprehensive research on the antibiotic resistance of different species of bacteria or multigroup-resistant bacteria in a drinking water treatment system (DWTS).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Antibiotic Resistance Genes and Antibiotic-Resistant Bacteria in Full-Scale Drinking Water Treatment System Using Metagenomics and Culturing

Sun

Lin

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

The contamination of antibiotic resistance genes (ARGs) may directly threaten human health. This study used a metagenomic approach to investigate the ARG profile in a drinking water treatment system (DWTS) in south China. In total, 317 ARG subtypes were detected; specifically, genes encoding bacitracin, multidrug, and sulfonamide were widely detected in the DWTS. Putative ARG hosts included Acidovorax (6.0%), Polynucleobacter (4.3%), Pseudomonas (3.4%), Escherichia (1.7%), and Klebsiella (1.5%) as the enriched biomarkers in the DWTS, which mainly carried bacitracin, beta-lactam, and aminoglycoside ARGs. From a further analysis of ARG-carrying contigs (ACCs), Stenotrophomonas maltophilia and Pseudomonas aeruginosa were the most common pathogens among the 49 ACC pathogens in the DWTS. The metagenomic binning results demonstrated that 33 high-quality metagenome-assembled genomes (MAGs) were discovered in the DWTS; particularly, the MAG identified as S. maltophilia-like (bin.195) harbored the greatest number of ARG subtypes (n = 8), namely, multidrug (n = 6; smeD, semE, multidrug_transporter, mexE, semB, and smeC), beta-lactam (n = 1; metallo-beta-lactamase), and aminoglycoside [n = 1; aph(3’)-IIb]. The strong positive correlation between MGEs and ARG subtypes revealed a high ARG dissemination risk in the DWTS. Based on the pure-culture method, 93 isolates that belong to 30 genera were recovered from the DWTS. Specifically, multidrug-resistant pathogens and opportunistic pathogens such as P. aeruginosa, Bacillus cereus, and S. maltophilia were detected in the DWTS. These insights into the DWTS’s antibiotic resistome indicated the need for more comprehensive ARG monitoring and management in the DWTS. Furthermore, more effective disinfection methods need to be developed to remove ARGs in DWTSs, and these findings could assist governing bodies in the surveillance of antibiotic resistance in DWTSs.

show abstract

“…In this respect, the lack of access to safe drinking water is a notable hindrance to the improvement in human health and development of the community in rural/urban areas in developing countries 13 . To counter this, several low-cost water treating methods at the household level have been developed and implemented to provide consistent access to safe drinking water in developing countries 12,[18][19][20][21] . In this context, currently, the point-of-use water treatment (PoUWT) systems have shown to be a promising option for improving the water quality at the household level in rural areas of these countries 12,19,[22][23][24][25][26] .…”

mentioning

confidence: 99%

“…The CPFs are commonly manufactured by combining clay, water, and sawdust to make a pot-shaped ceramic filter with small pores inside a plastic bucket. These CPFs physically remove colloidal particles and microorganisms, such as bacteria and even viruses, when water is passed through the filter and then the treated water is stored in the plastic bucket 12,[18][19][20]23,25,[30][31][32][33][34][35] . These ceramic water filter systems are often impregnated with colloidal silver for disinfection purposes and control bacterial growth 19,20,22,23,[30][31][32]36,37 .…”

mentioning

confidence: 99%

“…These CPFs physically remove colloidal particles and microorganisms, such as bacteria and even viruses, when water is passed through the filter and then the treated water is stored in the plastic bucket 12,[18][19][20]23,25,[30][31][32][33][34][35] . These ceramic water filter systems are often impregnated with colloidal silver for disinfection purposes and control bacterial growth 19,20,22,23,[30][31][32]36,37 . CPFs have been widely evaluated for efficient and effective removal of bacteria over the short term, showing significant reductions of pathogenic bacteria concentration in raw and spiked waters after the filtration 12,[18][19][20]22,23,25,[31][32][33]36 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

A novel filtration system based on ceramic silver-impregnated pot filter combined with adsorption processes to remove waterborne bacteria

Sánchez

Ocampo-Ibáñez

Silva-Leal

et al. 2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

Halving the proportion of the people without sustainable access to safe drinking water and basic sanitation is among the Sustainable Development Goals (SDG). Lack of access to safe drinking water has been associated with the prevalence of waterborne diseases. Due to this reported association, the development of household water treatment devices has been an alternative to improve the quality supply of domestic water. In this study, we aimed to evaluate the performance of a ceramic silver-impregnated pot filter (CSF) system coupled with an adsorption process, composed of silver-impregnated granular activated carbon and zeolite (CSF + GAC-Z), to remove waterborne bacteria Escherichia coli and Salmonella spp. from spiked water. The performance of this system was compared with the conventional CSF system. In this respect, we evaluated six CSF and six CSF + GAC-Z using spiked water with 103 and 102 CFU/mL of E. coli and Salmonella spp. The mean percentage of removals ranged between 98% and 99.98%. The highest bacterial removal efficiency was recorded by the CSF + GAC-Z (99%) and CSF (99.98%) for E. coli and Salmonella spp., respectively, but no significant statistical differences were found between filtration systems. Our findings suggest that the CSF + GAC-Z system was effective in the removal of waterborne bacteria from spiked water.

show abstract

Removal of E. coli and Salmonella in pot ceramic filters operating at different filtration rates

Cited by 12 publications

References 21 publications

The potency of fern stem as the carbon material for clay-based ceramic filter

The potency of fern stem as the carbon material for clay-based ceramic filter

Characteristics of Antibiotic Resistance Genes and Antibiotic-Resistant Bacteria in Full-Scale Drinking Water Treatment System Using Metagenomics and Culturing

A novel filtration system based on ceramic silver-impregnated pot filter combined with adsorption processes to remove waterborne bacteria

Contact Info

Product

Resources

About