Development of heterogeneous nano-zeolite catalyzing Fentonlike oxidation processes for metalworking fluid wastewater treatment: A comparison with conventional methods

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Safavi Mir Saman; Bozorg Soghra; Ahadzadeh Iraj; Safavi Mir Sahand

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Journal Paper

Paper Information

Journal: JOURNAL OF ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS Year:2024 | Volume:57 | Issue:2 Page(s): 190-202

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Information Journal Paper

Title

Development of heterogeneous nano-zeolite catalyzing Fentonlike oxidation processes for metalworking fluid wastewater treatment: A comparison with conventional methods

Author(s)

Safavi Mir Saman | Bozorg Soghra | Ahadzadeh Iraj | Safavi Mir Sahand | Issue Writer Certificate

Keywords

Metalworking fluid

Fenton oxidation

Coagulation-flocculation

heterogeneous nano-zeolite catalyzing Fenton-like oxidation processes

Wastewater treatment

Abstract

To preserve environmental and human health, remediation of the produced wastewater from various industries such as textile and metalworking is of prime significance. The present investigation strives to draw a meaningful comparison between the Metalworking fluid (MWF) wastewater chemical oxygen demand (COD) removal ability of three different methods, including Coagulation-flocculation, Fenton oxidation, and heterogeneous nano-zeolite catalyzing Fenton-like oxidation processes. The results illustrated that the highest COD removal efficiency achieves through the application of a heterogeneous Fenton-like oxidation process. Also, the influence of nanocatalyst dosage and solution pH on COD removal efficiency of the heterogeneous Fenton-like process is addressed. The concentration of the used catalyst in this method plays a crucial role in its removal ability, wherein COD removal efficiency increases with an increase in the catalyst amount. Besides, the COD removal efficiency of this process is not affected by the pH value of the treated solution. Moreover, the sludge production rate as well as affecting parameters of each method is evaluated. The heterogeneous Fenton-like process provides the lowest sludge production rate, while the maximum sludge production rate is encountered with the Coagulation-flocculation route. Therefore, the heterogeneous Fenton-like process overcomes the common challenges facing the successful industrial use of the conventional Fenton process.

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