Promotion of bioremediation performance in constructed wetland microcosms for acid mine drainage treatment by using organic substrates and supplementing domestic wastewater and plant litter broth

Chen, Jinquan; Li, Xuan; Wei, Jia; Shen, Shi‐Li; Deng, Shengjiong; Ji, Bohua; Chang, Junjun

doi:10.1016/j.jhazmat.2020.124125

Cited by 55 publications

(10 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The research informs that Gravel-based subsurface-flow constructed wetlands. This method successfully reduced the heavy metal content in acid mine drainage (except Fe and Cr) without adding carbon material (Chen et al, 2021). However, it succeeded in reducing the content of other heavy metals.…”

Section: Recent Technologies Of Acid Mine Drainage Treatmentmentioning

confidence: 96%

A Critical Review of Acid Mine Drainage Treatment

et al. 2021

View full text Add to dashboard Cite

Acid mine drainage has been reported to cause various environmental and human health problems. Acid mine drainage is formed due to the oxidation of sulfide minerals to water and air. This paper reports the efforts that have been made in the management and treatment of acid mine drainage. Thirty papers from reputable publishers are used as references. Efforts to prevent the formation of acid mine drainage can be made by making proper drainage and dewatering systems, making non-acid formations for rocks that have the potential to be oxidized. Active and passive treatment methods can be used to treat acid mine drainage. The active treatment method uses materials and chemicals to reduce pollutant parameters, while the passive method utilizes natural processes to reduce pollutant parameters in acid mine drainage. The combination of active and passive methods using novel materials that have been researched is recommended to produce the best system that can thoroughly remove pollutants in acid mine drainage.

show abstract

Section: Recent Technologies Of Acid Mine Drainage Treatmentmentioning

confidence: 96%

A Critical Review of Acid Mine Drainage Treatment

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Among heavy-metal polluted water, mining-impacted water, especially acid mine drainage (AMD), has attracted widespread attention worldwide ( Chen et al, 2021b ). The AMD generated during and after mining and smelting activities is characterized by high acidity and sulfate and toxic metallic ion enrichment ( Chen et al, 2021b , c ). Therefore, for AMD remediation, bacterial sulfate reduction in CWs is a key process as it reduces the acidity of AMD and removes heavy metals by immobilizing them as sulfides, hydroxides, and carbonate precipitates ( Chen et al, 2021c ).…”

Section: Functional Microorganisms In Heavy Metal Removalmentioning

confidence: 99%

“…The AMD generated during and after mining and smelting activities is characterized by high acidity and sulfate and toxic metallic ion enrichment ( Chen et al, 2021b , c ). Therefore, for AMD remediation, bacterial sulfate reduction in CWs is a key process as it reduces the acidity of AMD and removes heavy metals by immobilizing them as sulfides, hydroxides, and carbonate precipitates ( Chen et al, 2021c ). The bacteria involved in sulfate reduction are known as sulfate-reducing bacteria (SRB) and they can drive simultaneous sulfate and metal removal as well as acidity neutralization ( Habe et al, 2020 ; Chen et al, 2021b ).…”

Section: Functional Microorganisms In Heavy Metal Removalmentioning

confidence: 99%

“…Among them, the more popular ones include the genera Desulfovibrio , Desulfobacter , Desulfobulbus , and Desulfurobacterium . In addition to SRB, other functional microorganisms with complementary ecological niches are also important for the effective remediation of AMD ( Chen et al, 2021b , c ). For example, members of the genus Propioniciclava can use a variety of carbohydrates to produce acetate and propionic acids, driving dissimilatory SBR metabolism ( Torregrosa et al, 2019 ).…”

Section: Functional Microorganisms In Heavy Metal Removalmentioning

confidence: 99%

See 1 more Smart Citation

A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity

Wang

Long

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

Constructed wetlands (CWs) have been proven as a reliable alternative to traditional wastewater treatment technologies. Microorganisms in CWs, as an important component, play a key role in processes such as pollutant degradation and nutrient transformation. Therefore, an in-depth analysis of the community structure and diversity of microorganisms, especially for functional microorganisms, in CWs is important to understand its performance patterns and explore optimized strategies. With advances in molecular biotechnology, it is now possible to analyze and study microbial communities and species composition in complex environments. This review performed bibliometric analysis of microbial studies in CWs to evaluate research trends and identify the most studied pollutants. On this basis, the main functional microorganisms of CWs involved in the removal of these pollutants are summarized, and the effects of these pollutants on microbial diversity are investigated. The result showed that the main phylum involved in functional microorganisms in CWs include Proteobacteria, Bacteroidetes, Actinobacteria and Firmicutes. These functional microorganisms can remove pollutants from CWs by catalyzing chemical reactions, biodegradation, biosorption, and supporting plant growth, etc. Regarding microbial alpha diversity, heavy metals and high concentrations of nitrogen and phosphorus significantly reduce microbial richness and diversity, whereas antibiotics can cause large fluctuations in alpha diversity. Overall, this review can provide new ideas and directions for the research of microorganisms in CWs.

show abstract

“…Various studies have focused efforts on establishing tailings stabilization processes with several techniques [7][8][9]. Likewise, different technological alternatives have been addressed to treat AMD, including active and passive methods [10][11][12][13][14]. Due to the nature and magnitude of the environmental impacts derived from the release of AMD, the mining industry has concentrated its efforts on containing the tailings, in order to avoid the release of AMD.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Electrical Conductivity Monitoring and Correlation with Sulfate Release and Acid Mine Drainage Potential from a Gold/Silver Paste Tailing Storage

2021

View full text Add to dashboard Cite

Safe disposal of tailings as high-density thickened tailings or paste tailings can reduce the environmental risks of conventional tailings deposits, reduce water use, minimize tailings storage facility footprints, reduce the potential for acid mine drainage (AMD), and minimize risks of failure, among other advantages. In the dewatering process, the addition of flocculants is key to improving the sedimentation of the tailings and the formation of a compact paste. Despite the environmental and operational advantages of using paste tailings, it is not clear how the chemical nature of coagulants and flocculants could influence the discharge of toxic elements (salts and metals) from tailings after storage. In this study, we show the results of the real-time evaluation of the release of polluting runoffs from a paste tailings deposit. To do this, we analyzed paste tailing samples for AMD potential through static and kinetic tests and monitored the electrical conductivity and real-time pH, evaluating the correlation with the sulfate in the thickener and downstream from the tailings deposit. Tailing samples have low sulfur content (<2%) and low acid-generating potential. Moreover, there is no evidence of a significant positive correlation (Pearson’s coefficient r < 0.8) between the sulfate concentrations with the pH or EC. Thus, the chemical nature of the paste tailings prior to discharge has no direct impact on the release of sulfate-rich runoffs from the tailings after its storage. This indicates that the tailings paste at the evaluated site is chemically stable in the short term.

show abstract

Promotion of bioremediation performance in constructed wetland microcosms for acid mine drainage treatment by using organic substrates and supplementing domestic wastewater and plant litter broth

Cited by 55 publications

References 39 publications

A Critical Review of Acid Mine Drainage Treatment

A Critical Review of Acid Mine Drainage Treatment

A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity

Real-Time Electrical Conductivity Monitoring and Correlation with Sulfate Release and Acid Mine Drainage Potential from a Gold/Silver Paste Tailing Storage

Contact Info

Product

Resources

About