Microbial community evolution of black and stinking rivers during in situ remediation through micro-nano bubble and submerged resin floating bed technology

Sun, Yanmei; Wang, Shiwei; Niu, Junfeng

doi:10.1016/j.biortech.2018.03.008

Cited by 60 publications

(15 citation statements)

References 37 publications

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“…3 Therefore, bulk micro/nanobubbles have been directly exploited to remove aerobically degradable pollutants (e.g., organic waste and ammonium) and harmful algal blooms (HABs) from eutrophic waters. 4,5 Alongside the use of bulk nanobubbles, a novel refinement of the technology, which involves interfacial nanobubbles, was developed in 2018, using natural minerals loaded with oxygen to deliver oxygen nanobubbles onto sediment surfaces. 6,7 This approach successfully reversed sediment hypoxia and reduced the flux of N and P from the sediment for over four months.…”

Section: Introductionmentioning

confidence: 99%

Aquatic Macrophytes in Morphological and Physiological Responses to the Nanobubble Technology Application for Water Restoration

et al. 2020

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Nanobubble technology, as an emerging and sustainable approach, has been used for remediation of eutrophication. However, the influence of nanobubbles on the restoration of aquatic vegetation and the mechanisms are unclear. In this study, the effect of nanobubbles at different concentrations on the growth of Iris pseudacorus (Iris) and Echinodorus amazonicus (Echinodorus) was investigated. The results demonstrated that nanobubbles can enhance the delivery of oxygen to plants, while appropriate nanobubble levels will promote plant growth, excess nanobubbles could inhibit plant growth and photosynthesis. The nanobubble concentration thresholds for this switch from growth promotion to growth inhibition were 3.45×10 7 and 1.23×10 7 particles/mL for Iris and Echinodorus, respectively. Below the threshold, an increase in nanobubble concentration enhanced plant aerobic respiration and ROS generations in plants, resulting in superior plant growth. However, above the threshold, high nanobubble concentrations induced hyperoxia stress, particularly in submergent plants, which result in collapse of the antioxidant system and the inhibition of plant physiological activity. The 2 expression of genes involved in modulating redox potential and the oxidative stress response, as well as the generation of relevant hormones, were also altered. Overall, this study provides an evidence-based strategy to guide the future application of nanobubble technology for sustainable management of natural waters.

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Section: Introductionmentioning

confidence: 99%

Aquatic Macrophytes in Morphological and Physiological Responses to the Nanobubble Technology Application for Water Restoration

et al. 2020

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“…The study of riverine microbial β diversity began in the last century (Slavikova & Vadkertiova, 1997) and then became the most investigated microbial index for both taxonomic and functional groups along rivers (Figure 4). Several studies have reported that microbial community composition is a major driving factor for biogeochemical cycling (D. Yang et al, 2019) and is also a pollution indicator for rivers (Y. M. Sun et al, 2018). This partially explains why β diversity has been extensively studied along rivers (Figure 5).…”

Section: Microbial Abundance and Diversity Indices Investigated Along...mentioning

confidence: 99%

Microbial abundance and diversity investigations along rivers: Current knowledge and future directions

et al. 2021

WIREs Water

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Microbial abundance and diversity in river ecosystems are being increasingly investigated, yet a synthesized understanding is still lacking. Here, studies of microbial abundance and diversity along global rivers are systematically reviewed based on 814 investigations performed across 8376 sites. We found that riverine microbial investigations are extremely heterogeneous regarding the spatiotemporal distribution of the sampling sites, the environmental media concerned, the microbial groups and indices targeted, the methods used, and the physicochemical properties examined. More than 72.23% of the studies were performed in the last 8 years, with most studies conducted in Europe, China, and the United States, while other regions were poorly investigated. Most studies have examined microbes in water, but very few studies have systematically investigated microbes in water, sediments, and riparian soils. Bacteria are the most studied microbial taxonomic groups; microbes with resistance genes and nitrogen cycling genes are the most studied microbial functional groups.High-throughput sequencing has greatly expanded our understanding of microbial diversity along rivers. Nevertheless, the ecological implications of microbial diversity are still poorly understood. Regarding physicochemical properties, researchers tend to examine environmental parameters that are critical for shaping microbial communities, such as pH, nitrogen, and phosphorus. Future research should pay more attention to rivers that have not been well studied, especially large rivers. Additionally, microbial studies along rivers should be conducted in a more systematic way, taking the underinvestigated environmental media, microbial groups, microbial indices, and physicochemical properties into consideration. Advanced microbiology techniques, such as multiple omics technologies, should be increasingly applied.

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“…The phylum Bacteroidetes contains four classes of Bacteroidia, Flavobacteriia, Sphingobacteriia and Cytophagia. The taxa of Cytophagia in Inner Sand Lake were abundant (14.0%), which was accorded with oligotrophic lake [25]. Oppositely, the taxa of Sphingobacteriia in Sand Lake were dominant (9.4%), whose growth was related to the freshly leached dissolved organic carbon [26].…”

Section: Bacterial Community Structurementioning

confidence: 99%

Bacterial Community Analysis of Two Neighboring Freshwater Lakes Originating from One Lake

Guo¹,

Liang²,

Chen³

et al. 2020

Pol. J. Environ. Stud.

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Water quality is crucial for freshwater lakes but urbanization usually has a negative impact on water quality [1]. The discharge of wastewater or treated wastewater can somehow change the lake ecosystem gradually by reducing water quality and the microbial abundance [2]. Currently, there have been more than two-thirds of urban lakes are suffering from different levels of pollution and eutrophication in Wuhan, China [3]. Research on the bacterial community compositions is beneficial for keeping good water quality as well as preventing algae blooming [4, 5] of the lakes.

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Microbial community evolution of black and stinking rivers during in situ remediation through micro-nano bubble and submerged resin floating bed technology

Cited by 60 publications

References 37 publications

Aquatic Macrophytes in Morphological and Physiological Responses to the Nanobubble Technology Application for Water Restoration

Aquatic Macrophytes in Morphological and Physiological Responses to the Nanobubble Technology Application for Water Restoration

Microbial abundance and diversity investigations along rivers: Current knowledge and future directions

Bacterial Community Analysis of Two Neighboring Freshwater Lakes Originating from One Lake

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