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Related Concept Videos

Bioremediation00:46

Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Aromatic Compounds: Overview01:25

Aromatic Compounds: Overview

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In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday...
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  3. Research Domains
  5. Engineering
  7. Environmental Engineering
  9. Air Pollution Modelling And Control
  11. Modeling And Simulation For The Sustainable Recovery Of Aromatics (btx) From Petrochemical Industrial Wastewater

Modeling and simulation for the sustainable recovery of aromatics (BTX) from petrochemical industrial wastewater

Jigyasha Srivastava1, Prakash Kumar Beri Gopinathan2

  • 1Department of Chemical Engineering, BITS Pilani, Dubai Campus, Dubai International Academic City, Dubai, United Arab Emirates.

Environmental Science and Pollution Research International
|September 2, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

This study recovers valuable aromatics and water from petrochemical wastewater using precipitation and vacuum distillation. The process effectively removes over 99.5% of heavy metals, enabling reuse and reducing environmental contamination.

Area of Science:

  • Environmental Chemistry
  • Chemical Engineering
  • Industrial Wastewater Treatment

Background:

  • Petrochemical wastewater contains toxic organic (glycols, aromatics) and inorganic pollutants, posing environmental and health risks.
  • Common organic impurities include monoethylene glycol (MEG), diethylene glycol (DEG), triethylene glycol (TEG), and benzene, toluene, and xylene (BTX).
  • Effective treatment is crucial for environmental protection and resource recovery.

Purpose of the Study:

  • To develop and validate a process for recovering aromatics and water from petrochemical industrial wastewater.
  • To remove inorganic impurities, including a range of heavy metals and salts.
  • To support sustainable development through waste reduction, reuse, and recycling.

Main Methods:

  • Inorganic impurities were precipitated using 1% sodium bicarbonate (NaHCO3) at 40°C.
Keywords:
AromaticsAspen HysysModeling and simulationOily wastewater

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  • Aspen Hysys simulation software with the NRTL thermodynamic model was used for process design and simulation.
  • Centrifuge separation and vacuum distillation were employed for separation and purification.
  • Regenerated water quality was analyzed using inductively coupled plasma-optical emission spectroscopy (ICP-OES).

    • Main Results:

    • The reclamation process successfully removed inorganic impurities and salts.
    • Over 99.5% removal of heavy metals was achieved.
    • The simulation process was validated through laboratory experiments.
    • Recovered aromatics can be reused, minimizing disposal and environmental impact.

    Conclusions:

    • The developed process effectively treats petrochemical wastewater, recovering valuable components.
    • High efficiency in heavy metal removal (>99.5%) was demonstrated.
    • The study promotes sustainable practices by enabling the reuse of wastewater components and reducing pollution.
    Petrochemical wastewater treatment
    Sustainability