Enhanced remediation of hydrocarbons contaminated soil using electrokinetic soil flushing - Landfarming processes

被引：8

作者：

Effendi, Agus Jatnika ^{[1
]}

Ramadan, Bimastyaji Surya ^{[2
]}

Helmy, Qomaruddin ^{[1
]}

机构：

[1] Inst Teknol Bandung, Fac Civil & Environm Engn, Dept Environm Engn, Bandung 40132, Indonesia

[2] Univ Diponegoro, Fac Engn, Dept Environm Engn, Semarang 50275, Indonesia

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2022年 / 17卷

关键词：

Bioremediation; Bioavailability; Electrokinetic soil flushing; Landfarming; Surfactant; PETROLEUM-HYDROCARBONS; ORGANIC CONTAMINANTS; BIOREMEDIATION; REMOVAL; COMBINATION; METALS;

D O I：

10.1016/j.biteb.2022.100959

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A sequential process of electrokinetic soil flushing (EKSF) and landfarming treatment was demonstrated to remove hydrocarbons from clay soil. Surfactant concentration was the independent variable with a concentration of 2x, 4x, 6x, and 8x of critical micelle concentration (CMC), respectively. Environmental changes, the number of microorganisms, and total petroleum hydrocarbon (TPH) concentration were also calculated and measured as response variables. The highest removal efficiency for TPH concentration in electrokinetic remediation occurred when surfactant concentration was 6x CMC while the concentration of TPH was reduced by about 49.9% from the initial concentration. The removal efficiency of the 6x CMC reactor in the landfarming treatment was found to be around 71.1%, and the number of microorganisms increased from 106 to 107 Colony Forming Unit (CFU)/g soil. The sequential process of EKSF - landfarming treatment produces higher removal efficiency than the natural attenuation after 50 days of treatment.

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页数：10

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