Hierarchical porous mussel shells as soil amendment for oil spill remediation

ABSTRACT

In this work, a new type of micromesoporous substance was prepared with fatty alcohol-polyoxyethylene ether (AEO) surfactant freezing penetration and pyrolysis using shells as raw materials. The obtained material exhibited good adsorbability and could be added to oil-contaminated soil to adsorb the pollutant, which resulted in the regeneration of the initially polluted soil. It was determined that the main component of the developed substance was CaCO₃. Importantly, the conducted experiments revealed that the obtained mussel micromesoporous material displayed certain adsorption effects toward petroleum hydrocarbons in a diesel solution. Moreover, it was found that chemical adsorption was more optimal than physical adsorption. The soil remediation effect was the best when the content of the mussel micromesoporous material in the soil was 400 g/kg. Under these conditions, the removal rate of petroleum hydrocarbon was established at 49.38%. This study indicated that micromesoporous material has great potential in the application of oil contaminated soil remediation.

GRAPHICAL ABSTRACT

KEYWORDS:

• Soil oil pollution
• mussel shell
• micromesoporous material
• soil remediation
• remediation effect

Acknowledgements

This study was supported by the Key Research and Development Projects of Zhejiang Province of China (No. 2018C02043), the Fundamental Research Funds for Zhejiang Provincial Universities and Research Institutes (No. 2019J00045, No. 2019J00025).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This study was supported by the Key Research and Development Projects of Zhejiang Province of China (no 2018C02043), the Fundamental Research Funds for Zhejiang Provincial Universities and Research Institutes (no. 2019J00045, 2019J00025).