Phthalates removal from wastewater by different methods - a review

Area of Science:

• Environmental Science
• Environmental Chemistry
• Toxicology

Background:

• Phthalate esters are widely used plasticizers in consumer products, leading to their environmental ubiquity.
• These compounds leach into aquatic environments, including surface water, groundwater, drinking water, and wastewater.
• Phthalates are endocrine-disrupting chemicals (EDCs) linked to adverse reproductive and developmental effects.

Purpose of the Study:

• To review and analyze existing technologies for the removal and degradation of phthalates from the environment.
• To identify knowledge gaps and propose future research directions for effective phthalate remediation.
• To highlight the importance of developing energy-efficient treatment methods.

Main Methods:

• Literature review of scientific papers on phthalate treatment technologies and degradation mechanisms.
• Analysis of commonly employed techniques such as adsorption, electrochemical methods, photocatalysis, membrane filtration, and microbial degradation.
• Evaluation of the prevalence and effectiveness of different removal strategies.

Main Results:

• Phthalates are detected across various aquatic systems due to their widespread use and leaching properties.
• Adsorption and photocatalysis are identified as the most frequently utilized methods for phthalate removal in existing literature.
• The study synthesizes information on diverse treatment mechanisms and their efficiencies.

Conclusions:

• Effective and energy-efficient technologies are crucial for mitigating the environmental and health impacts of phthalates.
• Further research is needed to address knowledge gaps in phthalate degradation and removal.
• Adsorption and photocatalysis show significant promise for phthalate remediation, warranting continued investigation and optimization.