Techno-economical assessment of coupling Fenton/biological processes for the treatment of a pharmaceutical wastewater

Martı́nez, Fernando; Molina, R.; Rodriguez, I Oropesa; Pariente, M.I.; Segura, Yolanda; Melero, Juan A.

doi:10.1016/j.jece.2017.12.008

Cited by 60 publications

(19 citation statements)

References 28 publications

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“…Over 60% of pharmaceutical sectors meet country's demand and is one of rapid expanding sectors of Indian economy. The produced wastewater from pharmaceutical sectors are complex and hazardous in nature, high COD, biological oxygen demand, solid Containing supplementary chemicals and presence of pharmaceuticals secondary metabolites leads the wastewater to be a under "red category" (Gadipelly et al, 2014;Martínez et al, 2018;Changotra et al, 2017Changotra et al, , 2019.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Treatability of Pharmaceutical Wastewater by Using Combined Ultrasound Cavitation and Persulfate Process

Pandya

Ast

Kodgire

2021

Preprint

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In recent years industrialization caused, magnificent leaps to high profitable growth of pharmaceutical industries, however, simultaneously it has given rise to environmental pollution. Pharmaceutical processes like extraction, purification, formulation etc. generates huge volume of wastewater with high COD, biological oxygen demand, auxiliary chemicals, and different pharmaceuticals substance or their metabolites in the active or inactive form imparting intensive color, which necessitates its proper treatment before being discharged. This study focuses on the feasibility analysis of utilization of ultrasound cavitation assisted with persulfate oxidation approach for the treatment of such complex effluent. Process parameters like pH, amplitude intensity, oxidant dosage was optimized for COD removal applying response surface methodology-based Box Behnken design. The optimum value observed for pH, amplitude intensity, oxidant dosage is 5, 20%, 100 mg/L respectively with 39.5% removal of COD and 6.5% removal of TOC in 60 min of fixed processing time. Study confirms that acombination of ultrasound cavitation and persulfate is a viable option for the treatment of pharmaceutical wastewater than individual treatment and it can be used as an intensification technique in existing treatment plants for achieving maximum COD removal.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Treatability of Pharmaceutical Wastewater by Using Combined Ultrasound Cavitation and Persulfate Process

Pandya

Ast

Kodgire

2021

Preprint

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“…Several works have presented feasible combinations of chemical and biological oxidation for the removal of recalcitrant pollutants, and most have focused on Fenton‐based processes including catalytic wet peroxide oxidation (CWPO) and photo‐Fenton processes . Indeed, coupling Fenton and biological oxidation could be an efficient and cost‐effective solution for the removal of TMX, avoiding the drawbacks of Fenton oxidation alone. Biological treatments based on the use of activated sludge in sequencing batch reactors (SBRs) are widely used to detoxify industrial wastewater on the grounds of their feeding flexibility, versatility and cost‐effectiveness relative to other biological technologies.…”

Section: Introductionmentioning

confidence: 99%

Thiamethoxam removal by Fenton and biological oxidation

Gomez‐Herrero

Lebik-Elhadi

Aït-Amar

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Thiamethoxam (TMX) is a potential insecticide pollutant of hydric resources that must be removed. Advanced oxidation processes (AOPs) are usually effective, but expensive to implement. Combining Fenton's reagent with biological oxidation circumvents the shortcomings of Fenton technology, facilitating the biodegradation of the resulting effluents in a sequencing batch reactor (SBR). RESULTS Fenton‐like oxidation of TMX with variable hydrogen peroxide (H2O2) doses afforded total organic carbon (TOC) conversion and chemical oxygen demand (COD) removal by (respectively) 40% and 80% from pure TMX, and 40% and 60% from commercial TMX. The effluents from Fenton oxidation using substoichiometric H2O2 doses were less ecotoxic and more biodegradable than the initial solution and, therefore, susceptible to a biological treatment. Biological oxidation of effluents obtained from 50% and 75% H2O2 doses was accomplished for different organic loads in 6‐h cycles. Coupling Fenton and biological oxidation of TMX afforded TOC conversion and COD removal of 80% for the effluent obtained with a 75% H2O2 dose. CONCLUSIONS Coupling Fenton–biological oxidation efficiently reduces the amounts of H2O2 needed and produces biodegradable effluents. In addition, the biological treatment increases COD and TOC removal by ≤80% for the overall treatment. © 2019 Society of Chemical Industry

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“…Approximately 60–65% of oil and grease, 60–70% of total suspended solids, and 40–50% of biochemical oxygen demand are removed throughout primary treatment (Chitnis et al, 2004; Hong et al, 2018). During the process of sedimentation heavy metals, organic nitrogen, and organic phosphorus are also removed (Martínez et al, 2018). In the process of sedimentation, sludge settles down at the bottom of the tank and effluent is transferred to another tank.…”

Section: The Current Methods and Newer Methods For Disposal Of Biomedimentioning

confidence: 99%

Nanoparticles impact in biomedical waste management

Patil

Bohara

2020

Waste Manag Res

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Effectual management of biomedical waste is obligatory for healthy human beings and for a safe environment. Mismanagement of biomedical waste is a community health problem. Safe and persistent methods for the management of biomedical waste are of vital importance. This article reviews the classification of biomedical waste, sources, colour-coding system of biomedical waste and salient features of biomedical waste rules in 2016, and the future prospective of nanoparticles. The untreated disposal of biomedical waste is associated with a huge amount of risk, so the efficient treatment for biomedical waste is most imperative. The review also highlights the current methods for disposal of biomedical waste, biological treatments given to biomedical waste water in the effluent treatment plant, and impacts due to the current method. Management of biomedical waste is a great challenge in developed and developing countries. To manage the biomedical waste there is a need for cost-effective, ecofriendly and less contaminating approaches for a greener and safe environment. The awareness regarding waste management is of great interest not only for the community but also for associated employees.

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Techno-economical assessment of coupling Fenton/biological processes for the treatment of a pharmaceutical wastewater

Cited by 60 publications

References 28 publications

WITHDRAWN: Treatability of Pharmaceutical Wastewater by Using Combined Ultrasound Cavitation and Persulfate Process

WITHDRAWN: Treatability of Pharmaceutical Wastewater by Using Combined Ultrasound Cavitation and Persulfate Process

Thiamethoxam removal by Fenton and biological oxidation

Nanoparticles impact in biomedical waste management

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