Abstract
For sustainable soil management, there is an increasing demand for soil quality, resilience, and health assessment. After remediation of petroleum hydrocarbon (PHC)-contaminated soils, changes in the physicochemical and ecological characteristics of the soil were investigated. Two kinds of remediation technologies were applied to contaminated soils: land farming (LF) and high temperature thermal desorption (HTTD). As a result of total petroleum hydrocarbons (TPH), PHC-contaminated soils were efficiently remediated by LF and HTTD. The soil health could not be completely recovered after the removal of pollutants due to adverse changes in the soil properties, especially in soil enzyme activities. Therefore, monitoring is necessary for accurate estimation of soil ecotoxicity and effective remediation, and additional soil management, such as fertilizer application or organic amendments, is needed to restore soil heath. In the case of HTTD, soil ecological properties are severely changed during the remediation process. The decision to reuse or recycle remediated soils should reflect changes in soil quality. HTTD is a harsh remediation method that results in deterioration of soil fertility and ecological functions. Alternatives, such as low-temperature thermal desorption or additional soil management using fertilizer or organic amendments, for example, are needed.
Highlights
Petroleum hydrocarbons (PHCs) are common contaminants in soil and groundwater resulting from past and current industrial activities [1,2]
To evaluate possible soil quality disturbances resulting from soil remediation processes, the physicochemical and ecological characteristics of soils were assessed
Diesel- and bunker C-contaminated soils can be successfully remediated with land farming (LF) and high temperature thermal desorption (HTTD) treatments, respectively; soil properties are altered during remediation (Table 1)
Summary
Petroleum hydrocarbons (PHCs) are common contaminants in soil and groundwater resulting from past and current industrial activities [1,2]. A variety of remediation technologies have been developed to mitigate the hazards of these pollutants in the environment in consideration of human health arising from pollutants [4,5]. Remediation treatment methods and techniques play a vital role in the cleaning of contaminated environments, in terms of containment, removal, reclamation, and restoration. The remediation approach should be chosen according to the characteristics of the contaminated site, including the nature and composition of pollutants, as well as the physical, chemical, and biological conditions of the affected environment. With increasing calls to reduce environmental pollutions, the primary focus of environmental scientists is presently the adoption of risk-based management approaches to remediate contaminated environments to reduce health risks or damage to the affected environment. Ienntshearceasneeoedf eHdTtToDr,escoivleercothloegsiociallhperaotphe. rItnietshwe ecraeseseovfeHreTlyTDch,asnogiled duercionlgogtihcealrepmroepdeiarttiieosn wpreorecesses.veHreTlTyDchisanagheadrsdhurreimngedthiaetiorenmmedetihatoiodnthpartorceessus.ltsHiTnTdDeteisrioarahtairosnhof soriel mfeertdiilaittyioanndmeecthoolodgitchaaltsorielsfuulntsctiinondse; taelrtieorrnaattioivneso,fsuscohil afserLtTilTitDy ,aanred theceorelofogriceanl eseodiledfu. nctions; alternatives, such as LTTD, are needed
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
