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Activation of persulfate by Fe-bearing materials for remediation of diesel/biodiesel-contaminated soils and phenol-contaminated water

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Alternative Title
Activation of persulfate by Fe-bearing materials for remediation of diesel/biodiesel-contaminated soils and phenol-contaminated water
Abstract
In this research, batch experiments were performed to examine the remediation of organic
pollutants using modified persulfate (PS) systems. Zero-valent iron [Fe(0)] and other
iron-bearing materials were applied to activate the PS systems for treating diesel and biodiesel contaminated
soils and phenol-contaminated water. After 12 h, Fe(0)-PS, 82.6% and 85.3% of
diesel and biodiesel in soils were removed, respectively. The optimal molar ratios of Fe(0)-to-
PS and FeS-to-PS were 68.6:1 and 43.6:1, respectively. Biochar (BC) was proposed to combine
with Fe(0) to enhance the oxidation of phenol by PS. BC could accelerate the oxidation
of phenol by Fe(0)-activated PS probably due to surface functional groups and electron distribution
in biochar. Controlling factors including pH, PS concentration, and various black carbon
materials were also examined. Complete degradation of phenol was achieved in 330 min
with 3000 mg of Fe(0), 2500 mg/L of PS, and 200 mg of biochar at pH 7. Our results suggest
that the oxidation by PS activated with iron-bearing materials and biochar may be a viable
option to treat organic pollutants in natural environments.
Author(s)
웬 티 하이 안
Issued Date
2018
Awarded Date
2018-02
Type
Dissertation
URI
https://oak.ulsan.ac.kr/handle/2021.oak/6051
http://ulsan.dcollection.net/common/orgView/200000012041
Alternative Author(s)
Thi Hai Anh Nguyen
Affiliation
울산대학교
Department
일반대학원 건설환경공학과
Advisor
Seok-Young Oh
Degree
Master
Publisher
울산대학교 General Graduate School> Department of Construction & Environmental Engineering
Language
eng
Rights
울산대학교 논문은 저작권에 의해 보호받습니다.
Appears in Collections:
Environmental Construction Engineering > 1. Theses (Master)
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