Fe-zeolite catalyst for ozonation of pulp and paper wastewater for sustainable water resources

Munir, Hafiz Muhammad Shahzad; Feroze, Nadeem; Ramzan, Naveed; Sagir, Muhammad; Babar, Muhammad; Tahir, Muhammad Suleman; Shamshad, Jaweria; Mubashir, Muhammad; Khoo, Kuan Shiong

doi:10.1016/j.chemosphere.2022.134031

Cited by 31 publications

(6 citation statements)

References 65 publications

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“…Many adsorbents are used to adsorb dyes from effluents, the most widely used of which is activated carbon, which is prepared from various materials such as worthless waste as agricultural waste. However, owing to the increase of various pollutants and organic compounds, it is necessary to prepare nanomaterial with new structures to simultaneously remove dyes and other organic compounds in effluents or water resources [15,16]. In general, physicochemical properties (composition of nanoparticles, degree of malformability, size of crystals and nanoparticles, and specific surface area) and other properties of zeolites significantly affect the efficiency of metal nanoparticles used with zeolite.…”

Section: Effect Of Concentrationmentioning

confidence: 99%

Nanocomposite Fe-Co-V/Zeolite: Highly Efficient Composite for Removal of Methyl Orange Dye

Karbul

Mohammadi²,

Yengejeh³

et al. 2022

JAEHR

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Background: In recent years, the dye industry has rapidly been developed. Dyes are one in all the foremost dangerous groups of chemical compounds found in industrial effluents, which are of considerable importance for reasons like reduced light permeability and therefore the subsequent disruption of the method of photosynthesis in water sources. This study was performed to remove dye using Fe-Co-V /Zeolite from a synthetic wastewater. Methods: After chemical synthesis of the nanocomposite, its structure was studied by spectroscopic techniques. The experiments were performed under different pH values (3-11), contact times (5-50 min), absorbent dose (0.5-0.6g), stirring speed (240-60 rpm), and different concentrations. Results: The results showed that the optimal and final conditions affecting the removal of methyl orange dye in the most suitable conditions for 200 mL of the solution with a concentration of 20 mg/L at pH equal to 3, contact time 20 min, adsorbent dose 0.2 g, jar speed 180 rpm and temperature 25°C, which finally with the application of the optimal data, at a concentration of 2.5 mg/L, the best efficiency was obtained. The examination of isotherm diagrams and isotherm coefficients showed that the adsorption process follows the Freundlich equation. Conclusion: According to the obtained results and physical and chemical properties of the synthesized nanocomposite, it can be used to remove pollutants from the environment such as wastewater and air.

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Section: Effect Of Concentrationmentioning

confidence: 99%

Nanocomposite Fe-Co-V/Zeolite: Highly Efficient Composite for Removal of Methyl Orange Dye

Karbul

Mohammadi²,

Yengejeh³

et al. 2022

JAEHR

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“…Due to the extremely high content of MO in dye wastewater, reused water resources are highly abundant. The potential for water resource reuse has always garnered significant interest from national and industry experts 5,6 . In recent years, in order to meet the sewage discharge standards and improve the reuse of printing and dyeing wastewater, many conventional and advanced treatment technologies have been used to study sewage treatment 7 .…”

Section: Introductionmentioning

confidence: 99%

“…The potential for water resource reuse has always garnered significant interest from national and industry experts. 5,6 In recent years, in order to meet the sewage discharge standards and improve the reuse of printing and dyeing wastewater, many conventional and advanced treatment technologies have been used to study sewage treatment. 7 Due to the abundance of renewable water resources, there is an urgent requirement for developing environment-friendly, efficient, and low-energy consuming treatment technologies to treat the significant amount of Ads contaminated wastewater.…”

mentioning

confidence: 99%

Activation of persulfate by iron‐loaded soybean straw biochar for efficient degradation of dye contaminants: Synthesis, performance, and mechanism

Yue

Zhu

Zeng

et al. 2023

Env Prog and Sustain Energy

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Biochar loaded with metal ions has been widely used to activate persulfate to degrade organic pollutants. However, the preparation conditions of catalysts are always controversial. In this study, the co‐heating conditions of soybean straw with high carbon and low nitrogen and nano‐iron oxide were systematically discussed by response surface method, and an efficient catalyst (Fe@BC) was obtained. Fe@BC can effectively activate sodium persulfate (PS) and degrade three synthetic azo dyes (Methyl orange (MO), Amino black 10B (AB10B), and Orange II) and rhodamine B (RhB). Under the optimum conditions, the removal rate of total organic carbon of these four dyes reached 41.1%–89.8% and the final degradation rate could reach 100%. The physicochemical properties of Fe@BC were studied by SEM, BET, XRD, XPS and TGA. The results revealed that the specific surface area of Fe@BC was 195.6m2/g. Further, reducing iron oxide by C generated C0.09Fe1.91 and zero‐valent iron. Free radical scavenging experiments and electron paramagnetic resonance (EPR) measurements showed that the main reactive oxide species (ROS) in the Fe@BC/PS system were hydroxyl radicals (•OH) and singlet oxygen (1O2). Finally, Several Fe@BC modification systems were explored, the optimum pH of Fe@BC/PS system was analyzed, and the effects of Fe@BC and PS dosage on degradation performance were also studied. This study provides a scientific basis for the production of efficient catalysts and biochar energy, and an effective treatment scheme for printing and dyeing wastewater.

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“…Water is used for washing purposes in the industry. If this water is released as such without treatment, it imposes a serious threat on ecosystem [12]. This water is contaminated with animal oils, fiber lint, organic dyes and other hazardous chemicals.…”

Section: Introductionmentioning

confidence: 99%

TiO2/Activated Carbon/2D Selenides Composite Photocatalysts for Industrial Wastewater Treatment

Ahmad

Tahir

Kamal

et al. 2023

Water

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Even in the 21st century, water contamination has been a big problem and industrial processes are to be blamed for polluted water supplies. The use of sunlight in the process of photocatalysis is an efficient way to purify wastewater. Composites of TiO2/activated carbon/two-dimensional selenides performed better than either of the individual material or binary composites for this application. A straightforward hydrothermal technique was employed in the synthesis of photocatalysts. The synthesized photocatalytic composites were verified with the help of UV-Visible spectroscopy, FTIR, XRD, and SEM. The heterostructures absorbed nearly all of the sun’s UV and visible light. These photons are then converted into usable reducing electrons and oxidizing species such as •O2 and OH• to decompose organic pollutants from industrial wastewater. Since there were additional pathways available for charge transfer along with several active edge sites, the composite photocatalysts are proven more active than individual TiO2 and 2D MoSe2 components. With the help of a cascade-driven mechanism of electrons, these channels can transmit more charges than single-component heterojunctions. The results provided a realistic method for developing photocatalyst composites powered by solar light for use in industrial wastewater treatment. Results of degradation of methylene blue suggest that the synthesized composites possess better photocatalytic activity. This enhanced photocatalytic activity is not limited to organic dyes. Other hazardous organic pollutants present in industrial wastewater can be decomposed by using this approach.

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Fe-zeolite catalyst for ozonation of pulp and paper wastewater for sustainable water resources

Cited by 31 publications

References 65 publications

Nanocomposite Fe-Co-V/Zeolite: Highly Efficient Composite for Removal of Methyl Orange Dye

Nanocomposite Fe-Co-V/Zeolite: Highly Efficient Composite for Removal of Methyl Orange Dye

Activation of persulfate by iron‐loaded soybean straw biochar for efficient degradation of dye contaminants: Synthesis, performance, and mechanism

TiO2/Activated Carbon/2D Selenides Composite Photocatalysts for Industrial Wastewater Treatment

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