Recent Advances in Biotechnologies for the Treatment of Environmental Pollutants Based on Reactive Sulfur Species

Fan, Kaili; Wang, Wei; Xu, Xiaomei; Yuan, Yuan; Ren, Nan-Qi; Lee, Dong Hoon; Chen, Chuan

doi:10.3390/antiox12030767

Cited by 9 publications

(3 citation statements)

References 144 publications

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“…Mechanical treatment, hydrogen oxidation, use of microorganisms, use of artificial filter systems and improvement of sewage systems can be used to reduce eutrophication. The effectiveness of these solutions depends on many factors, such as the condition of the reservoir before the introduction of the solution, the type of contamination, its level and costs 133 , 134 .…”

Section: Discussionmentioning

confidence: 99%

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Buta

Wiatkowski

Gruss

et al. 2023

Sci Rep

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The objectives of the article are: to assess spatio-temporal evolution of eutrophication and water quality of the Turawa dam reservoir, located in south-western Poland on the Mała Panew River; to identify location and relationship between potential sources of physicochemical pollution related to the progressing process of eutrophication; and to determine trophic status and water quality indices of the selected research object. The analysis (Mann–Whitney U test, PCA, HCA, Spearman correlation matrix) showed a high susceptibility of the reservoir to eutrophication processes, especially due to the influence of dangerous loads of compounds emerging from areas with high tourist intensity and pollutants flowing from the Mała Panew River. The parameters deteriorating the ecological status were TP, DO, BOD5, and COD. Considering the cumulative results of water quality indices for the period 1998–2020, the average water quality was in classes II or III. A noticeable deterioration appeared in water quality for the years 2016–2020, which proves the progressing eutrophication in the Turawa reservoir. In 1998–2020, the reservoir was classified as eutrophic or mesoeutrophic based on the calculated three trophic status indices. This article would help in developing a strategy for dealing with water blooms, a reliable system for monitoring pressures causing eutrophication, and optimal technologies for the reconstruction of multifunctional reservoirs.

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Section: Discussionmentioning

confidence: 99%

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Buta

Wiatkowski

Gruss

et al. 2023

Sci Rep

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“…In this review, we use the term sulfate-reducing bacteria (SRBs) to refer to members of both domains. They are highly taxonomically diverse, and more than 220 species and 60 genera of SRBs have been recorded since 1895 [45][46][47]. SRBs can be found in many environmental locations including, but not confined to, seawater and marine sediments, wetlands, paddy soils, wastewater and many natural and engineered environments where sulfate is present [48,49].…”

Section: Electron Transfer In Microbial Sulfate Reductionmentioning

confidence: 99%

Electron Transfer in the Biogeochemical Sulfur Cycle

Zhuang,

Wang,

2024

Life

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Microorganisms are key players in the global biogeochemical sulfur cycle. Among them, some have garnered particular attention due to their electrical activity and ability to perform extracellular electron transfer. A growing body of research has highlighted their extensive phylogenetic and metabolic diversity, revealing their crucial roles in ecological processes. In this review, we delve into the electron transfer process between sulfate-reducing bacteria and anaerobic alkane-oxidizing archaea, which facilitates growth within syntrophic communities. Furthermore, we review the phenomenon of long-distance electron transfer and potential extracellular electron transfer in multicellular filamentous sulfur-oxidizing bacteria. These bacteria, with their vast application prospects and ecological significance, play a pivotal role in various ecological processes. Subsequently, we discuss the important role of the pili/cytochrome for electron transfer and presented cutting-edge approaches for exploring and studying electroactive microorganisms. This review provides a comprehensive overview of electroactive microorganisms participating in the biogeochemical sulfur cycle. By examining their electron transfer mechanisms, and the potential ecological and applied implications, we offer novel insights into microbial sulfur metabolism, thereby advancing applications in the development of sustainable bioelectronics materials and bioremediation technologies.

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“…[12]. However, the organic carbon in seawater may combine with high levels of sulfate to produce toxic sulfides [13], making it necessary to consider non-toxic sulfur for autotrophic denitrification to reduce nitrate levels in mariculture wastewater.…”

Section: Introductionmentioning

confidence: 99%

Study on the Treatment of Simulated Recirculating Mariculture Wastewater by Thiosulfate-Based Autotrophic Denitrification

Gao

Chen

et al. 2023

Water

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In this study, a sulfur-based autotrophic denitrifying filter (SADF) was developed for the purpose of removing nitrate from simulated recirculating mariculture wastewater. Results showed that over 90% of the nitrate could be effectively eliminated by utilizing thiosulfate as the electron donor, with a molar ratio of thiosulfate-S to nitrate molar ratio of 2:1 or greater. Additional batch tests confirmed that thiosulfate was a suitable sulfur source for nitrate removal even without prior accumulation of the biomass to nitrite. Excess thiosulfate had a minor impact on N-removal efficiency, so an external sulfur source was not required for nitrate removal, however, it could still help to reduce nitrate accumulation and water replacement to some extent. High-throughput sequencing results illustrated that Thiomicrospira and Thioalkalivibrio were the dominant autotrophic denitrifying genera in the SADF, while Thiomicrospira was more significantly affected in the case of insufficient sulfur sources. As the issue of nitrate accumulation in the mariculture recirculating system has been resolved, only a small amount of water needs to be added to the system daily. Therefore, the thiosulfate-based SADF process has the potential to be implemented for nitrate removal in mariculture systems, which could present a promising sustainable solution to the nitrate pollution issue.

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Recent Advances in Biotechnologies for the Treatment of Environmental Pollutants Based on Reactive Sulfur Species

Cited by 9 publications

References 144 publications

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir, Poland

Electron Transfer in the Biogeochemical Sulfur Cycle

Study on the Treatment of Simulated Recirculating Mariculture Wastewater by Thiosulfate-Based Autotrophic Denitrification

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