Solar light-assisted remediation of domestic wastewater by NB-TiO2 nanoparticles for potable reuse

Abdelraheem, Wael H.M.; Nadagouda, Mallikarjuna N.; Dionysiou, Dionysios D.

doi:10.1016/j.apcatb.2020.118807

Cited by 30 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2) The detoxification mode inducing and/or catalyzing the initial chemical breakdown leading to the transformation of toxic compounds to less harmful products. Oxidation-reduction reactions are the predominant mechanisms, as in the case of photocatalytic titanium oxide TiO2 nanoparticles for the oxidation of organics (Abdelraheem et al, 2020), or nanoscale zero-valent iron (nZVI) for their reduction (Fajardo et al, 2019).…”

Section: Nanoremediationmentioning

confidence: 99%

In situ nanoremediation of soils and groundwaters from the nanoparticle's standpoint: A review

Marcon

Oliveras

Puntes

2021

Science of The Total Environment

View full text Add to dashboard Cite

Highlights Anthropogenic pollution has continuously increased since the industrial revolution.  Nanoparticles can provide solutions to in situ cleanup challenges.  Nano-objects are increasingly being deployed in the field since the 2000s.  Their use is not exempt of limitations (aggregation, human health risks). 5 Their slow development in Europe is also due to economic motives and regulatory issues.  Questions concerning toxicity and migration into the matrices need to be answered.Highlights (for review : 3 to 5 bullet points (maximum 85 characters including spaces per bullet point)

show abstract

Section: Nanoremediationmentioning

confidence: 99%

In situ nanoremediation of soils and groundwaters from the nanoparticle's standpoint: A review

Marcon

Oliveras

Puntes

2021

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…As natural water matrices contain a variety of radical scavengers the here tested setting will generate only site-specific results. Better pre-treatment hereby is expected to generate higher degradation as shown in [37].…”

Section: Field Test Settingsmentioning

confidence: 99%

Oxidation of Selected Trace Organic Compounds through the Combination of Inline Electro-Chlorination with UV Radiation (UV/ECl2) as Alternative AOP for Decentralized Drinking Water Treatment

Otter

Mette²,

Wesch³

et al. 2020

Water

View full text Add to dashboard Cite

A large variety of Advanced Oxidation Processes (AOPs) to degrade trace organic compounds during water treatment have been studied on a lab scale in the past. This paper presents the combination of inline electrolytic chlorine generation (ECl2) with low pressure UV reactors (UV/ECl2) in order to allow the operation of a chlorine-based AOP without the need for any chlorine dosing. Lab studies showed that from a Free Available Chlorine (FAC) concentration range between 1 and 18 mg/L produced by ECl2 up to 84% can be photolyzed to form, among others, hydroxyl radicals (OH) with an UV energy input of 0.48 kWh/m3. This ratio could be increased to 97% by doubling the UV energy input to 0.96 kWh/m3 and was constant throughout the tested FAC range. Also the achieved radical yield of 64% did not change along the given FAC concentration range and no dependence between pH 6 and pH 8 could be found, largely simplifying the operation of a pilot scale system in drinking water treatment. Whereas with ECl2 alone only 5% of benzotriazoles could be degraded, the combination with UV improved the degradation to 89%. Similar results were achieved for 4-methylbenzotriazole, 5-methylbenzotriazole and iomeprol. Oxipurinol and gabapentin were readily degraded by ECl2 alone. The trihalomethanes values were maintained below the Germany drinking water standard of 50 µg/L, provided residual chlorine concentrations are kept within the permissible limits. The here presented treatment approach is promising for decentralized treatment application but requires further optimization in order to reduce its energy requirements.

show abstract

“…This necessitated the development of a solar-induced hybrid EHs, a hybrid system that integrates mechanical and thermal EHs into solar EHs enabling simultaneous energy harvesting and continuous energy conversion (Figure 1). The hybrid EHs are sustainable and therefore a promising energy system for the AOPs water treatment process (Abdelraheem et al, 2020;De la Obra Jimé nez et al, 2019;Rizzo et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Solar-induced hybrid energy harvesters for advanced oxidation water treatment

et al. 2021

View full text Add to dashboard Cite

Water treatment based on advanced oxidation processes (AOPs) supplies clean water to rural areas lacking electric power supply and/or during natural disasters and pandemics. Considering the abundance of solar energy in the ambient environment, the solar-driven AOPs show an interesting potential to driving the water purification process. Involving the energy harvester (EH) that harvests mechanical or thermal energy into electricity to the solar-driven AOPs can achieve sustainable and self-powered water purification. Herein, we summarize the recent progress in the application of solar-induced hybrid EHs that harvest solar and mechanical/thermal energy simultaneously to drive AOP water treatment. A detailed discussion of the solar-induced hybrid EHs enabling AOP water treatment based on the mechanisms of piezo-, tribo-, pyro-, and thermo-assisted photocatalysis is provided. In addition, this paper explores future opportunities and strategies of the solar-induced hybrid EHs to drive the AOP water treatment in actual situations with unstable and fluctuating environmental conditions.

show abstract

Solar light-assisted remediation of domestic wastewater by NB-TiO2 nanoparticles for potable reuse

Cited by 30 publications

References 25 publications

In situ nanoremediation of soils and groundwaters from the nanoparticle's standpoint: A review

In situ nanoremediation of soils and groundwaters from the nanoparticle's standpoint: A review

Oxidation of Selected Trace Organic Compounds through the Combination of Inline Electro-Chlorination with UV Radiation (UV/ECl2) as Alternative AOP for Decentralized Drinking Water Treatment

Solar-induced hybrid energy harvesters for advanced oxidation water treatment

Contact Info

Product

Resources

About