Oily water treatment in a multistage tower operated under a novel induced pre-saturation process in the presence of a biosurfactant as collector

Santos, Leonardo Bandeira dos; Silva, Rita de Cássia Freire Soares da; Brasileiro, Pedro Pinto Ferreira; Baldo, Rodrigo Dias; Sarubbo, Leonie Asfora; Santos, Victória Laysna dos Anjos

doi:10.1016/j.btre.2021.e00638

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…Moreover, the study proposed the reuse of the treated wastewater, which is in line with sustainability [89]. An induced pre-saturation tower (set of flotation chambers in continuous sequence from top to bottom) was operated with the biosurfactant produced by P. cepacia for the treatment of oily wastewater and a reduction in the diameter of the microbubbles to increase the contact surface with the droplets and enhance the oil removal process, resulting in an oil concentration of 15 mg/L, which is within the limit determined by Brazilian environmental law [102].…”

Section: Application Of Biosurfactant In Treatment Of Oily Effluentsmentioning

confidence: 99%

Biosurfactants as Multifunctional Remediation Agents of Environmental Pollutants Generated by the Petroleum Industry

Filho

Converti

Silva³

et al. 2023

Energies

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Fuel and oil spills during the exploration, refining, and distribution of oil and petrochemicals are primarily responsible for the accumulation of organic pollutants in the environment. The reduction in contamination caused by hydrocarbons, heavy metals, oily effluents, and particulate matter generated by industrial activities and the efficient recovery of oil at great depths in an environmentally friendly way pose a challenge, as recovery and cleaning processes require the direct application of surface-active agents, detergents, degreasers, or solvents, often generating other environmental problems due to the toxicity and accumulation of these substances. Thus, the application of natural surface-active agents is an attractive solution. Due to their amphipathic structures, microbial surfactants solubilize oil through the formation of small aggregates (micelles) that disperse in water, with numerous applications in the petroleum industry. Biosurfactants have proven their usefulness in solubilizing oil trapped in rock, which is a prerequisite for enhanced oil recovery (EOR). Biosurfactants are also important biotechnological agents in anti-corrosion processes, preventing incrustations and the formation of biofilms on metallic surfaces, and are used in formulations of emulsifiers/demulsifiers, facilitate the transport of heavy oil through pipelines, and have other innovative applications in the oil industry. The use of natural surfactants can reduce the generation of pollutants from the use of synthetic detergents or chemical solvents without sacrificing economic gains for the oil industry. Therefore, investments in biotechnological processes are essential. It is predicted that, in the not-too-distant future, natural surfactants will become viable from an economic standpoint and dominate the world market. The application of biosurfactants in these settings would lead to industrial growth and environmental sustainability. The main goal of this paper is to provide an overview of diverse applications of biosurfactants on environmental remediation, petroleum biotechnology, and the oil industry through a scientific literature review.

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Section: Application Of Biosurfactant In Treatment Of Oily Effluentsmentioning

confidence: 99%

Biosurfactants as Multifunctional Remediation Agents of Environmental Pollutants Generated by the Petroleum Industry

Filho

Converti

Silva³

et al. 2023

Energies

Self Cite

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“…Important operational and structural parameters of a bench scale IPST were determined [6] and used as the primary strategy for generating the scale-up criteria for a semi-industrial IPST project. The main parameters and strategies were: (i) kinetic constants of oil and grease removal [7]; (ii) hydraulic detection time [8]; (iii) flotation chamber dimensions [8][9][10]; (iv) siphon diameter and level [11]; (v) use of scraper for oily foam collection [12]; (vi) individual pumps for the stages [13,14]; and (vii) use of biosurfactant [15,16].…”

Section: Introductionmentioning

confidence: 99%

Induced Pre-Saturation Tower: A Technological Innovation for Oily Water Treatment in Semi-Industrial Scale

Santos

Silva²,

Pedrosa

et al. 2023

Energies

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In this work, an induced pre-saturation tower (IPST) for oil–water separation was built on a semi-industrial scale, based on experimental results obtained on a laboratory scale prototype. The main strategy for generating these criteria was to increase the efficiency of the bench scale prototype, which is limited by conditions of low levels of automation and control, with the use of a biosurfactant as an auxiliary collector. The validation of the developed criteria allowed the construction of an IPST with three stages, all fed with previously saturated effluents. The IPST was built in stainless steel, with multistage centrifugal pumps and adapted to generate microbubbles without the use of saturation tanks or compressors. The most relevant operational parameters were selected using a fractional factorial design, while a central composite rotatable design (CCRD) followed by the application of the desirability function allowed to optimize the conditions for partial and global variables, the latter with desirability of 95%. A nominal flow rate of approximately 1000 L·h−1, a recycle flow rate of 450 L·h−1, a scraper rotation speed of 80 rpm, an average pressure of the microbubble pumps of 11 bar, and an effluent temperature from IPST of about 38 °C ensured optimized operation for the proposed technological development.

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Removal of hydrophobic contaminant/petroleum derivate utilizing biosurfactants

Mgbechidinma,

Zhang

2024

Industrial Applications of Biosurfactants and Microorganisms

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Oily water treatment in a multistage tower operated under a novel induced pre-saturation process in the presence of a biosurfactant as collector

Abstract: Graphical abstract

Cited by 3 publications

References 32 publications

Biosurfactants as Multifunctional Remediation Agents of Environmental Pollutants Generated by the Petroleum Industry

Biosurfactants as Multifunctional Remediation Agents of Environmental Pollutants Generated by the Petroleum Industry

Induced Pre-Saturation Tower: A Technological Innovation for Oily Water Treatment in Semi-Industrial Scale

Removal of hydrophobic contaminant/petroleum derivate utilizing biosurfactants

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