Article
Environmental Sciences
Weiying Feng, Fang Yang, Rui Cen, Jing Liu, Zhongyi Qu, Qingfeng Miao, Haiyan Chen
Summary: Straw biochar can improve the properties of salinized soil, enhance crop growth temperature, promote positive circulation between soil, vegetation, and microorganisms, and play a crucial role in improving soil quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Wengang Zuo, Shengjie Wang, Yuxi Zhou, Shuai Ma, Weiqin Yin, Yuhua Shan, Xiaozhi Wang
Summary: This study investigated the fate of Cd in different soil conditions treated with wheat straw biochar and its driving mechanisms. The addition of biochar facilitated Cd immobilization and reduced Cd uptake by green vegetables in various soils. However, in acidic soil, the release of exchangeable aluminum from biochar led to increased leaching of Cd. The remediation performance of biochar for Cd-contaminated soils is conditional and more effective in neutral and saline-alkali soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Dilani Rathnayake, Filipe Rego, Reinhart Van Poucke, Anthony V. Bridgwater, Ondrej Masek, Erik Meers, Jiawei Wang, Yang Yang, Frederik Ronsse
Summary: This study investigated the immobilization of Cd in contaminated soil due to metal smelting activities using wheat straw biochar. Results demonstrated that biochars produced at higher temperatures were more efficient in immobilizing Cd, providing important insights for reducing heavy metal pollution in agricultural production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Qun Wang, Juncheng Shao, Linpei Shen, Jianghui Xiu, Shengdao Shan, Kangting Ma
Summary: Carbonized products of waste agricultural straws can be used for soil remediation to reduce impact of heavy metals. Fermentation of straws by filamentous fungi enhances the properties of biochar for cadmium-contaminated paddy soil remediation. Fermented straws have higher adsorption capacity and are more effective in reducing bioavailable Cd(II) and improving soil pH compared to natural straws.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Arfin Imam, Sunil Kumar Suman, Raghuvir Singh, Bhanu Prasad Vempatapu, Anjan Ray, Pankaj K. Kanaujia
Summary: This study successfully immobilized laccase on the surface of functionalized rice straw biochar, achieving high stability and immobilization yield. Through adsorption and kinetic studies, the optimal immobilization concentration was found at 25 degrees C. The immobilized system was applied for anthracene degradation, resulting in complete degradation within 24 hours.
ENVIRONMENTAL POLLUTION
(2021)
Article
Multidisciplinary Sciences
Xinli Gan, Wenli Zhang
Summary: This study confirms the feasibility of using biochar made from crop straw as a bitumen additive to improve bitumen properties, and investigates the differences between crop straw biochar and commercial charcoal in affecting asphalt performance. The results indicate that the addition of crop straw biochar significantly enhances the high-temperature performance of asphalt.
Article
Biotechnology & Applied Microbiology
Limei Chen, Songlin Sun, Yaoyu Zhou, Bangxi Zhang, Yutao Peng, Yuchen Zhuo, Wenke Ai, Chongfeng Gao, Bei Wu, Dawei Liu, Chaoran Sun
Summary: This study investigated the effects of straw and straw biochar on pH, SOC content, labile organic C fractions, and soil microbial communities in paddy soil. The results demonstrated that both amendments increased SOC content and had a more pronounced impact on microbial biomass carbon, dissolved organic carbon, and easily oxidizable carbon compared to SOC. Additionally, the combination of straw and straw biochar promoted bacterial growth while supporting fungal growth and development. Overall, this study provides insights into the influence of labile organic C pools on bacterial and fungal communities in paddy soil.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Agriculture, Multidisciplinary
Tongping Lu, Xiujun Wang, Zhangliu Du, Lipeng Wu
Summary: The study found that biochar application significantly increased soil organic carbon (SOC) content and decreased soil inorganic carbon (SIC) content, contributing to enhanced SOC stability. Additionally, biochar had a higher carbon conversion rate in soil compared to straw, indicating its great potential for carbon sequestration in cropland in north China.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Environmental Sciences
Mingtao Zhong, Weidi Li, Menghao Jiang, Jingang Wang, Xiaoyan Shi, Jianghui Song, Wenxu Zhang, Haijiang Wang, Jing Cui
Summary: In recent years, the modification of biochar by using different agents has been studied for its effectiveness in remediating soil cadmium contamination. In this study, cotton straw biochar and maize straw biochar were co-modified using KOH, K3PO4, and urea. The modified biochars exhibited increased adsorption capacity for Cd, with cotton straw biochar modified with KOH (3 mol L-1), K3PO4, and urea showing the highest adsorption capacity. This modified biochar also significantly reduced soil available Cd content and reduced the bioavailability of Cd, making it a promising solution for the remediation of soil Cd contamination.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Biochemistry & Molecular Biology
Yufeng Xiao, Lining Zheng, Shengyi Wang, Meiqi Dong, Ao Gao, Zhe Han, Shuang Liang, Hao Zhang
Summary: This study investigated the bioremediation effects of Bacillus cereus N1, a metribuzin-degrading bacterium, immobilized with corn straw biochar (BC). The results showed that 72.15% of strain N1 and 15.31% of metribuzin were adsorbed by BC, with the highest absorption peak intensity obtained by the immobilized bacterial microspheres (PSBN1). Various experiments were conducted to investigate the mechanism of metribuzin removal by PSBN1 and to determine the optimal degradation conditions. PSBN1 exhibited high degradation efficiency, with 62.26% of metribuzin degraded in 120 days of storage at 4 degrees C. The degradation rates of metribuzin were also satisfactory in both sterilized and non-sterilized soils. The bioremediation effect of PSBN1 was verified through the recovery of plant weight and the restoration of soil enzymatic activities. These findings provide valuable evidence for the commercialization and long-term preservation of metribuzin-degrading microbial agents.
PROCESS BIOCHEMISTRY
(2023)
Article
Agricultural Engineering
Yutong Zong, Qing Xiao, Shenggao Lu
Summary: The concentration of Cd in biochar derived from Cd-contaminated straw increases with pyrolysis temperature, but its bioavailability decreases. Phosphate-modified biochar can significantly reduce the Cd concentration, and pyrolysis can also reduce the environmental risk of Cd in biochar.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Yu Dun, Chao Wu, Ming Zhou, Xia Tian, Guoqing Wu
Summary: This study found that adding wheat- and maize-derived biochars can significantly reduce cadmium accumulation in both soil and crop plants, and improve crop growth and quality.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Matheus Bortolanza Soares, Felipe Hipolito dos Santos, Luis Reynaldo Ferracciu Alleoni
Summary: The study found that the use of FeCl3-modified biochar was an efficient strategy to remove As and Pb from water contaminated by mining activity. Sorption on biochar followed the pseudo-second-order kinetics, with higher sorption speeds at the beginning that decreased over time, while modification with FeCl3 increased the specific surface area and enhanced the Pb sorption capacity of BC350.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Green & Sustainable Science & Technology
Karolina Barcauskaite, Olga Anne, Ieva Mockeviciene, Regina Repsiene, Gintaras Siaudinis, Danute Karcauskiene
Summary: Biochar has shown promise as a tool for immobilizing heavy metals in acidic soil. This study investigated the effects of biochar on heavy metal immobilization and its interaction with plants. The results demonstrated that biochar increased soil pH and reduced the availability of heavy metals for plants. Sequential extraction revealed different forms and distributions of heavy metals in the soil after biochar treatment and plant cultivation.
Article
Biotechnology & Applied Microbiology
Shichao Liu, Zhonglei Xie, Yintao Zhu, Yanmiao Zhu, Yan Jiang, Yujun Wang, Hongjun Gao
Summary: The study investigated the adsorption characteristics of different biochars on Zn in farmland soil and found that biochar from pyrolysis of alkali modified rice straw (KRBC) had the strongest immobilization ability for Zn. This was attributed to its larger specific surface area, richer porosity, and ability to improve soil pH and soil organic carbon effectively. The research provides theoretical and technical support for the remediation of Zn contaminated soil.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
