4.7 Article

Responses of microbial community composition and function to biochar and irrigation management and the linkage to Cr transformation in paddy soil

Related references

Note: Only part of the references are listed.
Review Engineering, Environmental

Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

Chujing Zheng et al.

Summary: Biochar is considered a promising material for the removal of chromium contamination, but the correlation between its manufacturing, characteristics, and remediation mechanisms has not been well summarized.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Combined effects of rice straw-derived biochar and water management on transformation of chromium and its uptake by rice in contaminated soils

Wendan Xiao et al.

Summary: The study found that water management and biochar addition significantly influenced the soil redox potential, pH, dissolved organic carbon, and Fe(II) concentration, affecting the transformation of Cr. Different treatments resulted in distinct dynamics of Cr(III) and Cr(VI) concentrations, with continuous flooding combined with 10 g kg(-1) of biochar showing the most effective reduction of Cr(VI). This combination also led to a significant decrease in Cr accumulation in rice grains and improved rice grain weight, indicating its potential for mitigating the impacts of Cr contamination on rice production in contaminated soils.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2021)

Article Environmental Sciences

Effects of biochar on catalysis treatment of 4-nonylphenol in estuarine sediment and associated microbial community structure

Chang-Mao Hung et al.

Summary: The study found that sewage sludge biochar (SSB) synthesized at 500 degrees Celsius (SSB500) achieved the highest efficiency in degrading 4-nonylphenol (4-NP), activating sodium percarbonate (SPC) to produce sufficient active oxygen and carbonate ions for enhanced degradation. Treatment with SSB/SPC increased microbial diversity and richness in sediments, with specific bacterial genera playing crucial roles in 4-NP degradation.

ENVIRONMENTAL POLLUTION (2021)

Article Green & Sustainable Science & Technology

Biochar amendment improved fruit quality and soil properties and microbial communities at different depths in citrus production

Mengyang Zhang et al.

Summary: Studies on the application of biochar in citrus production are rare and unsystematic. Our research systematically explored the effects of biochar on citrus quality, soil nutrient status, heavy metal environment, and microbial communities in citrus production. Results showed that biochar had positive effects on citrus fruit indexes, soil physicochemical properties, and enrichment of beneficial bacteria.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Environmental Sciences

Natural attenuation mechanism of hexavalent chromium in a wetland: Zoning characteristics of abiotic and biotic effects

Kaidi Jiang et al.

Summary: This study investigated the zoning characteristics of abiotic and biotic effects in a Cr(VI) contaminated natural wetland. The contaminated zone was dominated by chemical reduction by natural organic matters, while the downstream area saw direct microbial reduction of Cr(VI). The transition zone experienced intermittent Cr(VI) presence with indirect reduction by Fe2+.

ENVIRONMENTAL POLLUTION (2021)

Article Environmental Sciences

Conductive property of secondary minerals triggered Cr(VI) bioreduction by dissimilatory iron reducing bacteria

Ke Zhang et al.

Summary: This study demonstrates that biogenic secondary minerals can significantly enhance the bioreduction rate of Cr(VI), with their electron conduction, Fe(III)/Fe(II) cycling, and Cr(VI) adsorption mechanisms playing important roles in promoting Cr(VI) bioreduction.

ENVIRONMENTAL POLLUTION (2021)

Review Environmental Sciences

Comparing straw, compost, and biochar regarding their suitability as agricultural soil amendments to affect soil structure, nutrient leaching, microbial communities, and the fate of pesticides

Martin Siedt et al.

Summary: Organic amendments play a critical role in retaining nutrients and pesticides in agricultural soils, with biochar showing effectiveness in increasing soil sorption capacity. However, the overall impacts of different organic materials can vary greatly, highlighting the need for further studies to compare and optimize their use in soil management practices.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Soil Science

Influence of alternate wetting and drying water-saving irrigation practice on the dynamics of Gallionella-related iron-oxidizing bacterial community in paddy field soil

Takeshi Watanabe et al.

Summary: The study investigated the influence of alternate wetting and drying (AWD) irrigation on the dynamics of Gallionella-related FeOB in paddy field soil over three seasons of rice cultivation. The AWD irrigation reduced Fe(II) contents in the soil and increased the copy numbers of 16S rRNA genes of Gallionella-related FeOB. The fluctuation of the redox status of Fe caused by AWD irrigation led to changes in the community structure of Gallionella-related FeOB in the soil.

SOIL BIOLOGY & BIOCHEMISTRY (2021)

Review Environmental Sciences

Biomanagement of hexavalent chromium: Current trends and promising perspectives

Pooja Singh et al.

Summary: Chromium is a widely used heavy metal in industrial sectors, leading to large volumes of toxic industrial wastewaters being discharged into the environment without proper treatment. Biological approaches have shown great potential for chromium removal, including the use of various agro-based waste for adsorption, microbial groups for reduction/precipitation, and emerging agents like biosurfactants for enhanced metal bioremediation. The safe removal and recovery of chromium from wastes is crucial for achieving social, economic, and environmental sustainability as chromium is a non-renewable resource.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Environmental Sciences

Iron-reducing bacteria decompose lignin by electron transfer from soil organic matter

Carolina Merino et al.

Summary: Iron-reducing bacteria play a crucial role in electron transfer in anaerobic soil microsites. They obtain electrons from lignin in soil organic matter to reduce Fe(III) (oxyhydr)oxides, releasing CO2 and increasing iron content in soil. Geobacter metallireducens and Geobacter lovleyi are the main strains found in various climates and vegetation types.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Soil Science

Mixing of biochar, vinegar and mushroom residues regulates soil microbial community and increases cucumber yield under continuous cropping regime

Ranran Zhou et al.

Summary: The addition of vinegar and mushroom residues significantly improved soil pH, soil water content, and organic carbon content, while increasing nutrient content in the soil. In contrast, biochar reduced total phenol content and electrical conductivity.

APPLIED SOIL ECOLOGY (2021)

Article Engineering, Environmental

Impact of sulfate and iron oxide on bacterial community dynamics in paddy soil under alternate watering conditions

Chaolei Yuan et al.

Summary: The study found that sulfate and iron oxides have significant impacts on the microbial community in paddy soil, particularly reducing the abundance and diversity of bacteria after drying. This highlights the potential hazardous effects of these soil amendments on bacteria, emphasizing the importance of considering their implications before application.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Chemical processes of Cr(VI) removal by Fe-modified biochar under aerobic and anaerobic conditions and mechanism characterization under aerobic conditions using synchrotron-related techniques

Chunli Su et al.

Summary: The study found that FeBC is effective in removing Cr(VI) from aqueous solutions, with better removal in alkaline conditions, enhanced removal rate and capacity under anaerobic conditions, and stable removal of Cr in FeBC. XAS analysis revealed the form and bonding situation of Cr(III) in FeBC.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Environmental Sciences

Integrative effect of citrate on Cr(VI) and total Cr removal using a sulfate-reducing bacteria consortium

Wenzhi Gu et al.

Summary: Citrate was found to have a masking effect on toxicity and a high anti-oxidation rate, making it beneficial for Cr(VI) removal by sulfate-reducing bacteria.

CHEMOSPHERE (2021)

Article Environmental Sciences

Carboxylic acid reduction and sulfate-reducing bacteria stabilization combined remediation of Cr (VI)-contaminated soil

Wenzhi Gu et al.

Summary: The study found that citrate and lactate have good reduction effects in the continuous and stable remediation of Cr (VI)-contaminated soil, and citrate is more advantageous in maintaining the stability of the soil microbial community.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2021)

Article Green & Sustainable Science & Technology

Nitrification, denitrification and anammox process coupled to iron redox in wetlands for domestic wastewater treatment

Yuhui Ma et al.

Summary: Iron scraps were found to improve nitrogen removal in constructed wetlands, with the ability to prevent clogging and effectively remove nitrogen.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Engineering, Environmental

Driving microbial sulfur cycle for phenol degradation coupled with Cr(VI) reduction via Fe(III)/Fe(II) transformation

Zhiqiang Zhao et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Environmental Sciences

Hexavalent chromium remediation based on the synergistic effect between chemoautotrophic bacteria and sulfide minerals

Min Gan et al.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2019)

Article Biotechnology & Applied Microbiology

Nano-Bio sequential removal of hexavalent chromium using polymer-nZVI composite film and sulfate reducing bacteria under anaerobic condition

K. V. G. Ravikumar et al.

ENVIRONMENTAL TECHNOLOGY & INNOVATION (2018)

Article Environmental Sciences

Effects of alternating wetting and drying versus continuous flooding on chromium fate in paddy soils

Wendan Xiao et al.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2015)

Article Multidisciplinary Sciences

Influence of Humic Acid Complexation with Metal Ions on Extracellular Electron Transfer Activity

Shungui Zhou et al.

SCIENTIFIC REPORTS (2015)

Article Engineering, Environmental

Biological iron oxidation by Gallionella spp. in drinking water production under fully aerated conditions

W. W. J. M. de Vet et al.

WATER RESEARCH (2011)

Article Engineering, Environmental

Rates of Hexavalent Chromium Reduction in Anoxic Estuarine Sediments: pH Effects and the Role of Acid Volatile Sulfides

Andrew M. Graham et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Environmental Sciences

CHROMIUM OCCURRENCE AND SPECIATION IN BALTIMORE HARBOR SEDIMENTS AND POREWATER, BALTIMORE, MARYLAND, USA

Andrew M. Graham et al.

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY (2009)

Review Environmental Sciences

Chromium toxicity in plants

AK Shanker et al.

ENVIRONMENT INTERNATIONAL (2005)