Regeneration of Washing Effluents for Remediation of Petroleum-Hydrocarbons-Contaminated Soil by Corncob-Based Biomass Materials | Zendy

Zhuoqi Xu | Zendy; Haiwei Guo | Zendy; Tao Liu | Zendy; Wangqing Zhang | Zendy; Xiaodong Ma | Zendy

Open Access

Regeneration of Washing Effluents for Remediation of Petroleum-Hydrocarbons-Contaminated Soil by Corncob-Based Biomass Materials

Author(s) -

Zhuoqi Xu,

Haiwei Guo,

Tao Liu,

Wangqing Zhang,

Xiaodong Ma

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b02651

Subject(s) - corncob , effluent , adsorption , environmental remediation , contamination , petroleum , pulp and paper industry , chemistry , pulmonary surfactant , soil contamination , waste management , biomass (ecology) , pollution , environmental chemistry , environmental science , environmental engineering , organic chemistry , geology , raw material , ecology , engineering , biology , biochemistry , oceanography

Surfactant-enhanced soil washing is an effective remediation method for petroleum-hydrocarbons-contaminated soil. The residual petroleum hydrocarbons in the washing effluents reduce the elution ability of the washing effluents and cause secondary pollution to the environment. In this work, modified corncobs were prepared and used as selective adsorbents to remove the residual petroleum hydrocarbons in washing effluents. The structure of adsorbent was characterized and the adsorption conditions were optimized. With the adsorption by corncob-based adsorbents, washing effluents can be regenerated and recycled. After five cycles, the recovery efficiency of the washing effluents is still as high as 75.4%. The optimal adsorbent linear alkylbenzene sulfonates (LAS-Cb) also exhibited excellent recyclability, which can be recycled five times. The selective adsorption mechanism of the LAS-Cb for petroleum hydrocarbons in washing effluents, related to its huge hydrophobic core and surface electronegativity, is proposed.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research