Phenolic Based Pharmaceutical Contaminated Wastewater Treatment Kinetics by Activated Sludge Process

Siripattanakul‐Ratpukdi, Sumana

doi:10.7763/jocet.2014.v2.111

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…The reactor volume ratio and wastewater flow rate are calculated. HRT has a great influence over the reduction of COD and is important to achieve the desired degradation rate [ 26 ]. From the various hydraulic retention time operation, 2 days is kept constant.…”

Section: Resultsmentioning

confidence: 99%

[Retracted] Treatment of Pharma Effluent using Anaerobic Packed Bed Reactor

Vijayan

Mohan²,

Nivetha

et al. 2022

Journal of Environmental and Public Health

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The treatment of pharmaceutical effluent using an appropriate technology has become so important. Anaerobic packed bed reactor is an efficient method for pharmaceutical effluent treatment because of the high organic content present in it. In this study, a heavy-polluted pharma effluent is treated using an anaerobic packed bed reactor. The performance of the anaerobic reactor was identified with respect to chemical oxygen demand (COD) removal, methane yield, and gas production. The results showed that COD was reduced from 73% to 60% for an organic loading rate (OLR) of 0.6036–1.7487 kg COD m−3·d−1. As the OLR increases, the removal efficiency of COD decreases gradually to around 52% for an OLR of 2.34 kg COD m−3·d−1.

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Section: Resultsmentioning

confidence: 99%

[Retracted] Treatment of Pharma Effluent using Anaerobic Packed Bed Reactor

Vijayan

Mohan²,

Nivetha

et al. 2022

Journal of Environmental and Public Health

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“…The kinetics of wastewater treatment based on the Michael-Menten enzyme equation were considered. The anticompetitive kinetic equation was appropriate (Equation 1) [17]:…”

Section: Biodegradation Of Phenolmentioning

confidence: 99%

Possible Use of Lasers for Cleavage of Phenols Till Base Substances (Review)

Zarecka

Lazov

2023

HET

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The purpose of this review article is to explain the hazards of phenol and phenol compounds to human health and the environment. To describe where and how phenol and its compounds occur, especially in industrial effluents. To study the possibility of using laser technologies for phenol cleavage, as well as for the treatment of industrial wastewater from phenol compounds. Removal of phenol and its compounds using biological wastewater treatment process is widely used worldwide. This method is cost-effective and environmentally friendly. On the other hand, exceeding the tolerable phenol concentration, which is individual for each biological treatment plant, may result in severe intoxication and lead to death of activated sludge system. Thus, the biological treatment process of industrial wastewater is halted until the phenol concentration is reduced to an acceptable level and the microorganisms have time to recover. Such a procedure can be time consuming and unpredictable due to the susceptibility of microorganisms to changing conditions. Based on this, sources of literature have been studied that could help to understand which laser equipment can be used to cleave a phenolic compound or benzene ring to simpler compounds.

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“…The activated sludge-based technology is the most diffused wastewater treatment worldwide [56]; thus, it is essential to understand which effects (on the global process) are exerted by the presence of phenolic compounds on raw water (inlet) in order to comprise the feasibility of their application to high-polyphenol-content waters. Siripattanakul-Ratpukdi et al [57] investigated CAS system inhibition due to the high presence of phenolic compounds using synthetic wastewater supplemented with phenol as the sole carbon source to simulate the contaminated wastewater. The results pointed out that the system was able to completely remove the phenol in the case of low-moderate contamination (10 mg•L −1 phenol), whereas a low phenol removal ratio was observed in the highly contaminated scenario (100 mg•L −1 ) due to the inhibition caused by its recalcitrant nature.…”

Section: Conventional Activated Sludgementioning

confidence: 99%

Treatment of High-Polyphenol-Content Waters Using Biotechnological Approaches: The Latest Update

et al. 2022

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Polyphenols and their intermediate metabolites are natural compounds that are spread worldwide. Polyphenols are antioxidant agents beneficial for human health, but exposure to some of these compounds can be harmful to humans and the environment. A number of industries produce and discharge polyphenols in water effluents. These emissions pose serious environmental issues, causing the pollution of surface or groundwater (which are used to provide drinking water) or harming wildlife in the receiving ecosystems. The treatment of high-polyphenol-content waters is mandatory for many industries. Nowadays, biotechnological approaches are gaining relevance for their low footprint, high efficiency, low cost, and versatility in pollutant removal. Biotreatments exploit the diversity of microbial metabolisms in relation to the different characteristics of the polluted water, modifying the design and the operational conditions of the technologies. Microbial metabolic features have been used for full or partial polyphenol degradation since several decades ago. Nowadays, the comprehensive use of biotreatments combined with physical-chemical treatments has enhanced the removal rates to provide safe and high-quality effluents. In this review, the evolution of the biotechnological processes for treating high-polyphenol-content water is described. A particular emphasis is given to providing a general concept, indicating which bioprocess might be adopted considering the water composition and the economic/environmental requirements. The use of effective technologies for environmental phenol removal could help in reducing/avoiding the detrimental effects of these chemicals. In addition, some of them could be employed for the recovery of beneficial ones.

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Phenolic Based Pharmaceutical Contaminated Wastewater Treatment Kinetics by Activated Sludge Process

Abstract: Abstract-This study was to investigate phenolic based pharmaceutical-contaminated wastewater treatment using activated sludge. Activated sludge was grown and acclimated using commercial medium with Chemical Oxygen Demand

Cited by 7 publications

References 10 publications

[Retracted] Treatment of Pharma Effluent using Anaerobic Packed Bed Reactor

[Retracted] Treatment of Pharma Effluent using Anaerobic Packed Bed Reactor

Possible Use of Lasers for Cleavage of Phenols Till Base Substances (Review)

Treatment of High-Polyphenol-Content Waters Using Biotechnological Approaches: The Latest Update

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