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2021 | OriginalPaper | Buchkapitel

15. Greywater Treatment in Continuous Flow Solar Photocatalytic Reactor Using Graphite Supported Nitrogen-Doped TiO2

verfasst von : Kumari Priyanka, Neelancherry Remya, Manaswini Behera

Erschienen in: Sustainable Development of Water and Environment

Verlag: Springer International Publishing

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Abstract

The increasing water demand has been one of the major global issues for the past decades. An enormous amount of potable water is required for household, industrial and agricultural activities, which led the water authorities to look-out for suitable alternatives. Treated greywater reuse and recycling is an economically viable and attractive option for meeting a portion of future water demand. The feasibility of a continuous mode solar photocatalytic system in greywater treatment was explored in this study. The solar photocatalytic tests were employed with graphite-supported nitrogen-doped titanium dioxide (N-TiO2). The effect of flow rate (20–70 mL/min) was investigated under pH-3, H2O2 dosage-1 g/L, catalyst dosage-5 g/L in a continuous reactor. These tests revealed that the maximum removal efficiency in terms of COD, TOC and NH4-N was accomplished at 20 mL/min, while the lowest removal efficiencies were found at 70 mL/min. The removal efficiencies of COD, TOC, and NH4-N were progressively reduced from a flow rate of 20 to 50 mL/min, followed by a sharp drop at a flow rate of 70 mL/min. The reactor operation at the lowest flowrate i.e. 20 mL/min showed the removal efficiencies of 71.8, 65.1 and 63.7% for COD, TOC and NH4-N, respectively. The result showed that a solar photocatalytic system with GT-NTiO2 could be effectively used for greywater treatment under continuous mode operation.

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Literatur
Zurück zum Zitat USEPA Standard Methods for the Examination of Water and Wastewater 22th Edition, American Public Health Association, American Water Works Association, Water Environment Federation (2012) USEPA Standard Methods for the Examination of Water and Wastewater 22th Edition, American Public Health Association, American Water Works Association, Water Environment Federation (2012)
Metadaten
Titel
Greywater Treatment in Continuous Flow Solar Photocatalytic Reactor Using Graphite Supported Nitrogen-Doped TiO2
verfasst von
Kumari Priyanka
Neelancherry Remya
Manaswini Behera
Copyright-Jahr
2021
DOI
https://doi.org/10.1007/978-3-030-75278-1_15