Industrial wastewater treatment using oxidative integrated approach

Doltade, Sarjerao Bapu; Yadav, Yogesh Jawaharlal; Jadhav, Nilesh L.

doi:10.1016/j.sajce.2022.02.004

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…The following solutions were used to synthesize oxides: of analytically pure zirconium oxochloride ZrOCl 2 • 8H 2 O, of analytically pure cobalt nitrate Co(NO 3 ) 2 • 6H 2 O, and of analytically pure (25 %) ammonia. The synthesis was carried out in the steel autoclaves with 100 cm 3 Teflon inserts, which were placed in an induction furnace.…”

Section: Methodsmentioning

confidence: 99%

“…On counterbalance to chlorine, the industrial safe oxidants for water and waste, wood pulp bleaching and chemical synthesis, are ozone (O 3 ) and hydrogen peroxide (H 2 O 2 ), because the main product of their recovery is non-toxic O 2 . [1][2][3][4][5][6][7] Ozone production is carried out by an electric discharge of purified gaseous stream of the oxygen with its subsequent dissolution in waste. Because the method is very expensive and requires both complex equipment and high energy consumption, the ozonation is not widely used for wastewater disinfection.…”

Section: Introductionmentioning

confidence: 99%

“…Existing methods of cleaning of drainsare divided into disinfection with reagents containing chlorine, ultraviolet radiation, ozonation and using of chlorine‐free reagents for small buildings or tanks. On counterbalance to chlorine, the industrial safe oxidants for water and waste, wood pulp bleaching and chemical synthesis, are ozone (O 3 ) and hydrogen peroxide (H 2 O 2 ), because the main product of their recovery is non‐toxic O 2 [1–7] . Ozone production is carried out by an electric discharge of purified gaseous stream of the oxygen with its subsequent dissolution in waste.…”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal Synthesis of Mixed Oxide Compositions of Cobalt‐Zirconium and their Catalytic Activity in the Decomposition of Hydrogen Peroxide

et al. 2023

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The article presents the results of research on the hydrothermal synthesis of nanoscale oxide of cobalt and zirconium and their mixed oxide compositions. The synthesized samples have been characterized by the X‐ray phase, scanning electron microscopy and nitrogen adsorption‐desorption methods; the composition of the samples has been determined by chemical analysis methods, and their catalytic activity in the decomposition of hydrogen peroxide has been studied. It has been shown that during synthesis, highly dispersed cobalt and zirconium oxide are formed, and the sample of the composition (mol %): Co3O4(88)−ZrO2(12) has the highest specific surface area (181.2 m2/g) and the highest activity (K=6.18 ⋅ 10−2 s−1) against the decomposition of hydrogen peroxide. The increasing of the ZrO2 content in oxide compositions reduces their catalytic activity. The particle size in the synthesized samples is 7–38 nm.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrothermal Synthesis of Mixed Oxide Compositions of Cobalt‐Zirconium and their Catalytic Activity in the Decomposition of Hydrogen Peroxide

et al. 2023

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“…The result showed the highest permeability and low energy consumption of the membrane used in the microfiltration. Doltade et al, 2022 [100] studied the integrated oxidation process for treating dye wastewater. The findings revealed that about 91% of COD removal was obtained when ozone and H 2 O 2 were used as oxidizing agents.…”

Section: Combination Of Different Advanced Oxidation Processesmentioning

confidence: 99%

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Gopalakrishnan¹,

Banu

Adishkumar

2023

Sustainability

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One of the biggest problems the world is currently experiencing is wastewater treatment. Numerous pollutants are released into water bodies by enormous amounts of effluents from varied sources. This paper provides a concise summary of the state of the art in AOPs, biological treatment, and their efficient application for the degradation of the numerous recalcitrant organic contaminants found in wastewater. The employment of a photoreactor is necessary for the efficient execution of the majority of photocatalytic processes. This review examines the effectiveness of several reactor configurations with varying geometries. Integrating different AOPs and AOPs with biological approaches for degrading pollutants in wastewater was also discussed. It is important to emphasize that an integrated AOP/biological system produces by-products that are not hazardous, uses little energy, and completely degrades pollutants. The review also outlines the challenges and issues of wastewater treatment for an environmentally and economically feasible process.

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“…Water scarcity is currently one of the biggest problems in the world. Most of the world lacks significant water resources, especially due to environmental pollution from increased industrial activities, climate change, overpopulation, and the misuse of water resources (Doltade et al 2022;Necibi et al 2021). Synthetic dyes have become a major environmental pollutant and are widely used in various industries such as plastics, food products, printing, paper, cosmetics, and pharmaceuticals, especially in the textile industry because of their chemical stability, variety of colors, and simplicity of the synthesis process (El Gaayda et al 2022;Zaghloul et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

El-Habacha

Dabagh

Lagdali

et al. 2023

Preprint

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The present research work revolves around the evaluation of the elimination of the cationic dye Methylene Blue (MB) from an aqueous solution by the exploitation of natural clay (TMG) from South-East Morocco. Several physicochemical techniques were used to characterize our TMG adsorbate, namely: X-ray diffraction (XRD), Fourier transform infrared absorption spectroscopy (FTIR), differential thermal analysis (DTA), thermal gravimetric analysis (TGA), and zero charge point (pHpzc). The morphological properties and elemental composition of our material were identified using scanning electron microscopy coupled with an energy-dispersive X-ray spectrometer (SEM-EDS). The batch technique was used under different operating conditions to produce quantitative adsorption, namely the amount of adsorbent, dye concentration, contact time, pH, and solution temperature. The maximum adsorption capacity of MB on TMG was 81.185 mg g-1 for a concentration of 100 mg L-1 MB at pHinitial= 6.43, temperature 20 °C, and 1 g L-1 adsorbent. The adsorption data were examined by Langmuir, Freundlich, and Temkin isotherms. The Langmuir isotherm provides the best correlation with the experimental data, and the pseudo-second-order kinetic model is more appropriate for the adsorption of the MB dye. The thermodynamic study of MB adsorption indicates that the process is physical, endothermic, and spontaneous. The Box-Behnken method was applied to identify the optimal conditions for MB removal in the design of batch experiments. The parameters examined result in >99% removal.

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Industrial wastewater treatment using oxidative integrated approach

Cited by 10 publications

References 34 publications

Hydrothermal Synthesis of Mixed Oxide Compositions of Cobalt‐Zirconium and their Catalytic Activity in the Decomposition of Hydrogen Peroxide

Hydrothermal Synthesis of Mixed Oxide Compositions of Cobalt‐Zirconium and their Catalytic Activity in the Decomposition of Hydrogen Peroxide

Challenges and Emerging Trends in Advanced Oxidation Technologies and Integration of Advanced Oxidation Processes with Biological Processes for Wastewater Treatment

Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

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