Integration of microbial reductive dehalogenation with persulfate activation and oxidation (Bio-RD-PAO) for complete attenuation of organohalides
Rifeng Wu, Shanquan Wang()
Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510006, China
•Bio-RD-PAO can effectively and extensively remove organohalides.
•Bio-RD alone effectively dehalogenate the highly-halogenated organohalides.
•PAO alone is efficient in degrading the lowly-halogenated organohalides.
•The impacts of PAO on organohalide-respiring microbial communities remain elusive.
•Bio-RD-PAO provides a promising solution for remediation of organohalide pollution.
Due to the toxicity of bioaccumulative organohalides to human beings and ecosystems, a variety of biotic and abiotic remediation methods have been developed to remove organohalides from contaminated environments. Bioremediation employing organohalide-respiring bacteria (OHRB)-mediated microbial reductive dehalogenation (Bio-RD) represents a cost-effective and environmentally friendly approach to attenuate highly-halogenated organohalides, specifically organohalides in soil, sediment and other anoxic environments. Nonetheless, many factors severely restrict the implications of OHRB-based bioremediation, including incomplete dehalogenation, low abundance of OHRB and consequent low dechlorination activity. Recently, the development of in situ chemical oxidation (ISCO) based on sulfate radicals (SO4·−) via the persulfate activation and oxidation (PAO) process has attracted tremendous research interest for the remediation of lowly-halogenated organohalides due to its following advantages, e.g., complete attenuation, high reactivity and no selectivity to organohalides. Therefore, integration of OHRB-mediated Bio-RD and subsequent PAO (Bio-RD-PAO) may provide a promising solution to the remediation of organohalides. In this review, we first provide an overview of current progress in Bio-RD and PAO and compare their limitations and advantages. We then critically discuss the integration of Bio-RD and PAO (Bio-RD-PAO) for complete attenuation of organohalides and its prospects for future remediation applications. Overall, Bio-RD-PAO opens up opportunities for complete attenuation and consequent effective in situ remediation of persistent organohalide pollution.
Wang and He, 2013; Marcet et al., 2018; Zhao and He, 2019
TCE, DCE
Ethene
Dehalogenimonas
prokka_00862, prokka_02004
Yang et al., 2017b
(α, β, γ, δ)-HCH
Benzene
Dehalococcoides
ND
Bashir et al., 2018
Trichloroethane
Ethene
Desulfitobacterium
CtrA
Zhao et al., 2015
Dichloroethane
Ethene
Dehalococcoides
BvcA, VcrA
Tang et al., 2013; Parthasarathy et al., 2015
Dehalogenimonas
ND
Key et al., 2017
Dichloropropane
Propene
Dehalogenimonas
DcpA
Martin-Gonzalez et al., 2015
Trichloromethane
Dichloromethane
Dehalobacter
CfrA, TmrA
Heckel et al., 2019
Hepta-, Octa-, Nona-CB, Aroclor 1260
Penta-, Tetra-, Tri-CB, Di-CB
Dehalococcoides
PcbA1, PcbA4, PcbA5, JNA_RD8, JNA_RD11
Wang and He, 2013; Wang et al., 2015; Chen and He, 2018; Yu et al., 2018; Wang et al., 2019
PeCDD
DiCDD
Dehalococcoides
ND
Bunge et al., 2003
TeCDD
MoCDD
Dehalococcoides
CbrA
Bunge et al., 2003; Pöritz et al., 2015
TrCDD
DD
Dehalococcoides
CbrA
Pöritz et al., 2015
HeCDF
TeCDF
Dehalococcoides
ND
Liu and Fennell, 2008
TeCDF
TrCDF
Dehalococcoides
ND
Fennell et al., 2004
Penta-BDE, Tetra-BDE
Diphenyl ether
Dehalococcoides
PbrA1, PbrA2, PbrA3
Ding et al., 2017
Pentachlorophenol
Monochlorophenol
Desulfitobacterium
CprA3
Bisaillon et al., 2010
Trichlorophenol
Monochlorophenol
Dehalobacter
ND
Li et al., 2013; Wang and He, 2013
Hexachlorobenzene
Monochlorobenzene
Dehalobacter
ND
Nelson et al., 2014
Pentachlorobenzene
Benzene
Dehalobacter
ND
Nelson et al., 2014
TBBPA
Bisphenol A
Dehalococcoides
CbdbA80, CbdbA1092 CbrA, CbdbA1503,
Yang et al., 2015
Bromophenol blue
Phenol red
Dehalogenimonas
ND
Rosell et al., 2019
Tab.1
Fig.2
Compound
Concentration (mmol/L)
PS Concentration (mmol/L)
Degradation efficiency
Final products
Activator
Run time (min)
Reference
TCE
1.0
5
90.68%
ND
nZVI
30
Dong et al., 2019
0.4
5
>99%
short chain acids, CO2
Fe2+
20
Yuan et al., 2014
0.15
2.25
>99%
ND
Fe2+
30
Wu et al., 2015
0.15
4.5
99.4%
ND
biochar supported nZVI
5
Yan et al., 2015
Hexabromocyclododecane
0.04
4
100%
Carboxylic acids, CO2
UV/TiO2
180
Li et al., 2019
Perfluorooctanesulfonate
0.15
4.5
>99%
PFOA
hydrothermal
5
Yang et al., 2013
0.01
4.2
>99%
ND
ultrasound
360
Lei et al., 2020
Perfluorooctanoic acid
0.01
4.2
100%
CO2, HF
ultrasound
360
Lei et al., 2020
0.12
12
61.7%
CO2, F−
iron/activated carbon
600
Lee et al., 2020b
0.15
15
85.6%
short chain acids
UV
480
Qian et al., 2016
6:2 FTS
0.01
4.2
87%
ND
ultrasound
360
Lei et al., 2020
0.0025
50
100%
short chain acids
heat
60
Bruton and Sedlak, 2017
PCB1
0.0019
16.8
100%
CO2, H2O
heat
480
Fang et al., 2013
PCB3
0.0019
16.8
100%
CO2, H2O
heat
480
Fang et al., 2013
PCB7
0.0019
16.8
100%
CO2, H2O
heat
480
Fang et al., 2013
PCB8
0.0019
16.8
100%
CO2, H2O
heat
480
Fang et al., 2013
PCB28
0.0019
5
88%
CO2, H2O
iron
240
Rodriguez et al., 2017
0.0039
2
82%
CO2, H2O
vanadium species
240
Fang et al., 2017b
0.0039
2
100%
ND
vanadium species
1440
Fang et al., 2017a
0.0039
8
100%
ND
biochar
240
Fang et al., 2015
0.0019
16.8
100%
CO2, H2O
heat
480
Fang et al., 2013
0.0025
2
100%
ND
iron
240
Rodriguez et al., 2017
PCB30
0.0019
16.8
78%
CO2, H2O
heat
480
Fang et al., 2013
PCB31 (in soil)
0.006
500
67.2%
ND
iron
3 Days
Tang et al., 2015
PCB44 (in soil)
0.171
ND
97.4%
ND
electricity
7 Days
Yukselen-Aksoy
and Reddy, 2012
PCB153 (in soil)
0.005
500
67.7%
ND
iron
3Days
Tang et al., 2015
BDE47
0.0031
71.4
75%
ND
nZVI
2 Days
Wang et al., 2017
BDE209
0.021
500
53.8%
short chain acids, CO2, H2O, Br−
heat
360
Peng et al., 2016
Monochlorobenzene
0.3
15
>90%
CO2, H2O
Fe2+
180
Jiang et al., 2020
DDTs
0.00138
10
87.9%
CO2,H2O
ZVI
30
Zhu et al., 2016b
Atrazine
0.05
1
100%
DEIA, HAIT, DEIHA
heat
120
Ji et al., 2015
0.025
1
63%
DIA, DEA
heat
35
Lutze et al., 2015
Pentachlorophenol
50
0.115
75%
CO2, H2O
electrochemical
60
Govindan et al., 2014
2,4-Dichlorophenol
0.184
12.5
98%
CO2, H2O
iron-based nanoparticles
180
Li et al., 2015
0.034
0.5
82.7%
CO2, H2O
ZVC/nZVC
120
Zhou et al., 2018
0.1
1
100%
ND
heat/Fe2+
45
Kuśmierek et al., 2016
Tetrabromobisphenol A
0.018
3.6
94.8%
CO2, H2O, Br−
Iron-based MOFs
120
Huang et al., 2020
Triclosan
0.17
9.4
80%
ND
heat
360
Chen et al., 2019
p-chloroaniline
0.5
2.5
98.03%
CO2, H2O
activated carbon
120
Yao et al., 2019
0.2
4
>99%
CO2, H2O
FeS
150
Yuan et al., 2015
Tab.2
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