Remediation of oil-based drill cuttings using low-temperature thermal desorption: Performance and kinetics modeling

被引：59

作者：

Liu, Huan ^{[1
,2
]}

Li, Jianbing ^{[1
,2
]}

Zhao, Min ^{[1
,3
]}

Li, Yubao ^{[1
,3
]}

Chen, Yimeng ^{[1
,2
]}

机构：

[1] Wenzhou Univ WZU, WZU UNBC Joint Res Inst Ecol & Environm, Wenzhou 325035, Zhejiang, Peoples R China

[2] UNBC, Environm Engn Program, Prince George, BC V2N 4Z9, Canada

[3] Wenzhou Univ WZU, Sch Life & Environm Sci, Wenzhou 325035, Zhejiang, Peoples R China

来源：

CHEMOSPHERE | 2019年 / 235卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Drill cuttings; Thermal desorption; Petroleum hydrocarbons; Remediation; CONTAMINATED SOIL; BIODEGRADATION; POLLUTANTS; PLANTS;

D O I：

10.1016/j.chemosphere.2019.07.047

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A bench-scale apparatus was used for the low-temperature thermal desorption (LTTD) treatment of oil-based drill cuttings (OBDCs). The effects of treatment temperature, treatment duration, sand/OBDCs mixing ratio, and initial oil content on the LTTD treatment performance were investigated. It was found that the petroleum hydrocarbons (PHCs) were barely left in the high-oil-content drill cuttings after LTTD (at 300 degrees C for 20 min), and thus the overall soil health was improved. The desorption kinetics models of PHCs under various conditions were established, and it was found that the LTTD of OBDCs followed nonlinear least-squares exponential kinetics (adjusted R-2 > 0.9). The energy consumption models of MD treatment under different temperatures were also developed. The modeling results are of practical guiding significance and useful for designing effective LTTD treatment systems of OBDCs. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：1081 / 1088

页数：8

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