Total coliform inactivation in natural water by UV/H2O2, UV/US, and UV/US/H2O2 systems

Rubio-Clemente, Ainhoa; Chica, Edwin; Peñuela, Gustavo A.

doi:10.1007/s11356-018-3297-z

Cited by 15 publications

(4 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The UV lamp was introduced into the reactor and kept separate from the water by using a quartz jacket. The initial H 2 O 2 concentration was set at 5 mg/L (as effective concentration), as suggested in previous research [79,80].…”

Section: Inactivation Of Amrb and Amsb By O 3 -Based Aopsmentioning

confidence: 99%

Inactivation of Antibiotic-Resistant Bacteria in Wastewater by Ozone-Based Advanced Water Treatment Processes

2022

View full text Add to dashboard Cite

The inactivating effect of ozone (O3)-based advanced oxidation processes (AOPs) (O3/H2O2, O3/UV, and O3/UV/H2O2 systems) on antimicrobial-resistant bacteria (AMRB) and antimicrobial-susceptible bacteria (AMSB) in sewage treatment plant (STP) wastewater was investigated. The AMRB were grouped into six classes: carbapenem-resistant Enterobacteriaceae (CRE), extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-E), multidrug-resistant Acinetobacter (MDRA), multidrug-resistant Pseudomonas aeruginosa (MDRP), methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant Enterococcus (VRE); these classes constituted the World Health Organization (WHO) global priority list of AMRB. The results indicate that O3-based advanced wastewater treatment inactivated all AMRB and AMSB (>99.9%) after 10 min of treatment, and significant differences (p < 0.5) were not observed in the disinfection of AMRB and AMSB by each treatment. Altered taxonomic diversity of micro-organisms based on 16S rRNA gene sequencing via O3/UV and O3/UV/H2O2 treatment showed that advanced wastewater treatments not only inactivated AMRB but also removed antimicrobial resistance genes (AMRGs) in the wastewater. Consequently, this study recommends the use of advanced wastewater treatments for treating the STP effluent, reducing environmental pollution, and alleviating the potential hazard to human health caused by AMRB, AMSB, and infectious diseases. Overall, this study provides a new method for assessing environmental risks associated with the spread of AMRB and AMSB in aquatic environments, while keeping the water environment safe and maintaining human health.

show abstract

Section: Inactivation Of Amrb and Amsb By O 3 -Based Aopsmentioning

confidence: 99%

Inactivation of Antibiotic-Resistant Bacteria in Wastewater by Ozone-Based Advanced Water Treatment Processes

2022

View full text Add to dashboard Cite

show abstract

“…On the other hand, E. coli did not show signs of regrowth. To avoid regrowth, oxidizing reagents, such as H 2 O 2, could be dosed to water since it causes severe damage to bacterial structures, making their inactivation irreversible (Langenbach et al 2010;Rubio-Clemente et al 2019). However, as the use of chemical oxidizer would increase the cost of the process, it would be better not to store the treated water, or at least store it for short periods in refrigerated environments, since any residual bacterial trace could make it inappropriate for human use (Vivar & Fuentes 2016).…”

Section: Disinfection Testsmentioning

confidence: 99%

Evaluation of an alternative household water treatment system based on slow filtration and solar disinfection

Silva

Loureiro

Soares

et al. 2021

Journal of Water and Health

View full text Add to dashboard Cite

Drinking water consumption is essential to maintain a good quality of life, but it is not available for all communities. Therefore, this work aimed to develop an alternative and accessible process for water treatment, based on filtration and solar disinfection, and evaluate it in both bench and pilot scales. The construction cost of the system was estimated and compared with other available options so that its economic viability could be discussed. For this purpose, water from a stream was collected and analyzed. A filter made of PVC tubes, sand, and gravel was built, acting, respectively, as a column, filtering medium, and support layer. As for the disinfection process, the SODIS (Solar Water Disinfection) methodology was adopted. The water was exposed to the sun, and the best exposure time was determined based on the analysis of total coliforms and E. coli. Finally, a prototype was built for a flow rate of 37.5 L d−1, consisting of two filters operating at a filtration rate of 2.38 m3 m−2 d−1. About 97% turbidity removal was obtained, as well as 99.9% for total coliforms and 99.1% for E. coli. It is estimated that the cost of building a water treatment system for one person is approximately USD 29.00.

show abstract

“…Moreover, because it releases only water (H 2 O) and oxygen (O 2 ) as a side-product, H 2 O 2 is extensively used as a green oxidant. Industrial applications include drinking water 2,3 and wastewater treatment, 4,5 bleaching, 6 desulfurization of conventional energy carriers 7 and bio-based feedstocks, 8,9 sanitation, 10 organic synthesis, [11][12][13] and aerospace fuels. 14 New niche of applications in catalyst synthesis, 15 biofuel generation, 16 and desulfurization of biogas 17 are also expected to ramp up the demand for H 2 O 2 in the future.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is an elegant green solution for onsite and ondemand H 2 O 2 production, also avoiding risks associated with large-scale storage and transportation of highly concentrated H 2 O 2 solutions. 22 There are two electrochemical routes for H 2 O 2 production: the cathodic oxygen reduction reaction (ORR, eqn (1)) and the anodic water oxidation reaction (WOR, eqn (2)). Both pathways involve a two-electron transfer reac-tion.…”

Section: Introductionmentioning

confidence: 99%

Anodic generation of hydrogen peroxide in continuous flow

et al. 2022

View full text Add to dashboard Cite

show abstract

Total coliform inactivation in natural water by UV/H2O2, UV/US, and UV/US/H2O2 systems

Cited by 15 publications

References 62 publications

Inactivation of Antibiotic-Resistant Bacteria in Wastewater by Ozone-Based Advanced Water Treatment Processes

Inactivation of Antibiotic-Resistant Bacteria in Wastewater by Ozone-Based Advanced Water Treatment Processes

Evaluation of an alternative household water treatment system based on slow filtration and solar disinfection

Anodic generation of hydrogen peroxide in continuous flow

Contact Info

Product

Resources

About