通讯机构：
[Weiping Xiong; Zhaohui Yang] C;College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China<&wdkj&>Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
期刊：
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2022年127(23) ISSN：2169-897X
通讯作者：
Guo, JP
作者机构：
[Zhang, Jian] China Univ Geosci, Inst Geophys & Geomat, Wuhan, Peoples R China.;[Xue, Haile; Guo, Jianping] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China.;[Zhang, Shaodong; Huang, Kaiming] Wuhan Univ, Sch Elect Informat, Wuhan, Peoples R China.;[Dong, Wenjun] Global Atmospher Technol & Sci GATS, Boulder, CO USA.;[Shao, Jia] Huazhong Agr Univ, Coll Informat, Wuhan, Peoples R China.
通讯机构：
[Guo, JP ] C;Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China.
关键词：
GW total energy;high-resolution radiosonde network;convective precipitation;KH instabilities;near-surface wind
摘要：
Lower atmospheric gravity waves (GWs) can significantly impact waves in the middle and upper atmospheres and are vital for turbulence generation. This paper puts the spotlight on the spatial-temporal variability of tropospheric GW total energy (E-T) and its potential sources above four regions of interest (ROIs) gathered from high-resolution radiosonde observations from the China Radiosonde Network during the years 2016-2019. The seasonality of E-T above four ROIs shows different characteristics and is dependent on latitudes and underlying terrains, reaching its maximum identified in the winter at middle latitudes. Interestingly, the annual cycles of the maximal E-T shift from 35 degrees N in October to 25 degrees N in March of the next year, triggered by the shift in the winter subtropical jet. Based on the random forests regressor, the jet stream between 200 and 125 hPa likely serves as the primary source for the observed GWs above the ROIs with low and middle latitudes, with relative contributions of around 60%. However, the Kelvin-Helmholtz instability between 800 and 125 hPa could be the most recognized source of GWs and contributes around 68.4% to the observed energy. During the rainy season, the E-T under scenarios of convective precipitation is around 20% larger than the other. As well, as the near-surface or low-level wind interacts with a mountain barrier over the Tibetan Plateau region, 12.4% of the observed E-T is attributed to the strength of the low-level wind. Plain Language Summary The gravity wave (GW) is one of the most important waves in the atmosphere and acts as a triggering source to turbulence. However, the tropospheric GWs in the context of China has seldomly been investigated by using high-resolution radiosonde data set. This analysis shows that the GW total energy exhibit obvious seasonal various at low and middle latitudes, with maximal identified in the winter and minimal in the summer. The jet stream in the upper troposphere is the most important source for GW at low and middle latitudes and gives rise to a southward propagation of the maximal GW energy in cold season. In the summer of southern China, the convective precipitation could contribute to the enhancement of GW energy. In addition, 12.4% of the observed GW energy is attributed to the strength of the low-level wind over the Tibetan Plateau.
通讯机构：
[Yangyang Wang; Yulong Wang] A;Authors to whom correspondence should be addressed.<&wdkj&>Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Henan University, Ministry of Education, Kaifeng 475004, China<&wdkj&>National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>Henan Engineering Research Center for Control & Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China<&wdkj&>National Demonstration Center for Environmental and Planning, College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
摘要：
The high salt-alkalinity of bauxite residue (BR) hinders plant growth and revegetation of bauxite residue disposal areas (BRDA), which cause serious potential environmental and ecological risks. Bioneutralization is a promising method for improving the properties of BR and plant colonization. In the present study, a strong saline-alkali tolerant bacteria (ZH-1) was isolated from aged BR and identified as Bacillus sp. The medium of ZH-1 was optimized by orthogonal tests, and ZH-1 could decrease the medium pH from 11.8 to 6.01 (agitated culture) and 6.48 (static culture) by secretion of citric acid, oxalic acid and tartaric acid. With the inoculation of ZH-1, the pH of BR decreased from 11.6 to 8.76, and the water-soluble salt in BR increased by 68.11%. ZH-1 also changed the aggregate size distribution of BR, the mechanical-stable aggregates and water-stable aggregates increased by 18.76% and 10.83%, respectively. At the same time, the stability of the aggregates obviously increased and the destruction rate decreased from 94.37% to 73.46%. In addition, the microbial biomass carbon increased from 425 to 2794 mg/kg with the inoculation of ZH-1. Bacterial community analysis revealed that Clostridia, Bacilli, Gammaproteobacteria, Betaproteobacteria and Alphaproteobacteria were the main classes in the naturalized BR, and the inoculation of ZH-1 increased the diversity of bacteria in the BR. Overall, ZH-1 has great potential for neutralization and improvement the properties of BR and may be greatly beneficial for the revegetation of BRDA.
期刊：
International Journal of Environmental Research and Public Health,2022年19(18):11155- ISSN：1661-7827
通讯作者：
Lei Huang
作者机构：
[Hongguo Zhang] School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China;[Feng Chen] School of Environmental and Biological Engineering, Henan University of Engineering, Zhengzhou 451191, China;[Zhenxing Wang] South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou 510655, China;Power China Zhongnan Engineering Corporation Limited, Changsha 410004, China;College of Environmental Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China
通讯机构：
[Lei Huang] S;School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China<&wdkj&>Author to whom correspondence should be addressed.
摘要：
With the rapid development of industrialization, human beings have caused many negative effects on the environment that have endangered the survival and development of human beings, such as the greenhouse effect, water pollution, energy depletion, etc [...]
期刊：
Journal of Cleaner Production,2022年380:134985 ISSN：0959-6526
通讯作者：
Peipei Song<&wdkj&>Zhaohui Yang
作者机构：
[Song, Peipei] Shandong Agr Univ, Coll Resources & Environm, Natl Engn Res Ctr Efficient Utilizat Soil & Fertil, Key Lab Agr Environm, Tai An 271018, Peoples R China.;[Song, Peipei; Yang, Zhaohui; Sun, Saiwu; Xiong, Weiping] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China.;[Xu, Haiyin] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.
通讯机构：
[Peipei Song; Zhaohui Yang] C;College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment, National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, Tai'an, 271018, PR China<&wdkj&>College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China<&wdkj&>College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China
关键词：
nZVI@BC;Arsenic;Soil;Remediation mechanism;Bacterial community
摘要：
Given the increasingly serious problem of arsenic-contaminated soil, biochar-loaded nanoscale zero-valent iron (nZVI@BC) was prepared in this study for remediation of arsenic-contaminated soil. Characterization analysis showed that nZVI was evenly dispersed on the biochar, the characteristic functional groups of biochar, including -CH, -OH, C--O, C-O-C, -OH, etc., were enriched and strengthened, and a relatively stable Fe-OH was formed. The effects of various factors (different materials, nZVI loading ratio, and remediation time) on arsenic frac-tionation, pH, and CEC in soil were comprehensively investigated. The results demonstrated that arsenic sta-bilization was positively correlated with the dosage, nZVI loading ratio, and remediation time. 5% nZVI@BC (3:1) exhibited the best immobilization performance, significantly promoted the transformation from labile arsenic to iron-aluminum oxide binding state and residue state, and improved the available iron, pH, and CEC of the soil. The remediation mechanism was revealed, involving electrostatic attraction, surface adsorption, redox, complexation and co-precipitation. In addition, the bacterial community abundance, diversity, and species composition displayed discrepancies with various treatments, especially with 5% nZVI@BC (3:1). Sixty-six biomarker species were screened, mainly belonging to Actinobacteria and Gemmatimonadetes with biochar treatment as well as Firmicutes, Acidobacteria, and Chloroflexi with nZVI@BC treatment. This study will provide the essential theoretical basis and extensive application value for nZVI@BC remediation of arsenic-contaminated soil.
作者机构：
[Huang, Chenxi; Cao, Jingxiao; Li, Meifang; Wang, Ping] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Shaoshan South Rd, Changsha 410004, Peoples R China.;[Huang, Chenxi; Cao, Jingxiao; Li, Meifang; Wang, Ping] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;[Liu, Yunguo; Tan, Xiaofei] Hunan Univ, Coll Environm Sci & Engn, Lushan South Rd, Changsha 410082, Hunan, Peoples R China.;[Liu, Yunguo; Tan, Xiaofei] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Lushan South Rd, Changsha 410082, Hunan, Peoples R China.;[Liu, Shaobo] Cent South Univ, Sch Architecture & Art, Lushan South Rd, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Wang, Ping] C;College of Environmental Science and Engineering, Central South University of Forestry and Technology, Tianxin District, Changsha, People’s Republic of China<&wdkj&>Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, People’s Republic of China
摘要：
Humic acids (HAs) widely exist in water environment, and has an important impact on the adsorption of pollutants. Herein, HAs (both dissolved and coated) was employed to assess the effect on the removal of the organic contaminant tetracycline (TC) by K2CO3 modified magnetic biochar (KMBC). Results showed that low concentration of dissolved HAs promoted TC removal, likely due to a bridging effect, while higher concentration of dissolved HAs inhibited TC adsorption because of the competition of adsorption sites on KMBC. By characterization analysis, coated HAs changed the surface and pore characteristics of KMBC, which suppressed the TC removal. In a sequential adsorption experiment involving dissolved HAs and TC, the addition of HAs at the end of the experiment led to the formation of HAs-TC ligands with free TC, which improved the adsorption capacity of TC. TC adsorption by KMBC in the presence of dissolved HAs and coated HAs showed a downward trend with increasing pH from 5.0 to 10.0. The TC adsorption process was favorable and endothermic, and could be better simulated by pseudo-second-order kinetics and Freundlich isotherm model. Hydrogen bonds and pi-pi interactions were hypothesized to be the underlying influencing mechanisms.
作者机构：
[谢天志; 陈永华; 苏荣葵; 刘慧; 姚海松] College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha;430003, China;[谢天志; 陈永华; 苏荣葵; 刘慧; 姚海松] 430003, China
通讯机构：
[Gu, JF ] C;Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.
关键词：
Arsenic;Cadmium;Combined amendment;Rice quality;Soil health
摘要：
In situ remediation technology applied aims to not only decrease cadmium (Cd) and arsenic (As) uptake by rice but also improve soil health and rice quality in contaminated paddy soils. Here the effects of a combined amendment, consisting of limestone, iron powder, silicon fertilizer, and calcium-magnesium-phosphate fertilizer, with three application rates (0, 450, and 900gm(-2)) on soil health, rice root system, and brown rice quality were compared in moderately versus highly Cd and As co-contaminated paddy fields. After the amendment application, soil pH, cation exchange capacity, four kinds of soil enzyme activities increased (sucrase, urease, acid phosphatase, and catalase), and concentrations of leached Cd/As decreased, as measured by the DTPA (diethylene triamine pentaacetic acid) and TCLP (toxicity characteristic leaching procedure). Changes in the above soil indicators promoted soil health. In both fields, the dithionite-citrate-bicarbonate (DCB)-Fe and DCB-Mn concentration in iron plaque increased and root length became longer. Changes in the above root system indicators reduced the root system's absorption of Cd and As but increased that of nutrients. Under 900gm(-2) treatment, the Cd concentration in brown rice of two sites decreased by 55.8% and 28.9%, likewise inorganic As (iAs) decreased by 50.0% and 21.1%, whereas essential amino acids increased by 20.4% and 20.0%, respectively. Furthermore, the Cd and iAs concentrations in brown rice were <0.2mgkg(-1) (maximum contaminant level of Cd and iAs in the Chinese National Food Safety Standards GB2762-2017 for brown rice) under the 900gm(-2) in the moderately contaminated field. These results suggest the combined amendment can improve soil health and brown rice quality in the moderately and highly Cd- and As-co-contaminated paddy soils, offering potential eco-friendly and efficient remediation material for applications in such polluted paddy soils.
作者机构：
[唐棋; 伍港繁; 辜娇峰; 周航; Zeng, Peng; 廖柏寒] College of Environment Science and Engineering, Central South University of Forestry and Technology, Changsha;410004, China;Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha;[唐棋; 伍港繁; 辜娇峰; 周航; Zeng, Peng; 廖柏寒] 410004, China;[辜娇峰; 周航; Zeng, Peng; 廖柏寒] 410004, China<&wdkj&>Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha
作者机构：
[伍港繁; 周航; 唐棋; 辜娇峰; Zeng, Peng; 廖柏寒] College of Environment Science and Engineering, Central South University of Forestry and Technology, Changsha;410004, China;Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha;[伍港繁; 周航; 唐棋; 辜娇峰; Zeng, Peng; 廖柏寒] 410004, China;[周航; 辜娇峰; Zeng, Peng; 廖柏寒] 410004, China<&wdkj&>Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha
摘要：
【目的】研究SO42-在不同水分条件下对土壤镉（Cadmium,Cd）行为和土壤环境的影响。【方法】以紫泥田为研究对象,进行土壤培养试验,研究淹水条件与湿润条件下SO42-添加对土壤Cd的影响。【结果】淹水条件下土面水p H随试验进行而升高,而湿润条件下表现为先降后升的趋势;土面水p H随SO42-添加浓度的增加而降低。淹水处理土面水p H大于湿润处理（P＜0.05）。SO42-添加显著提高土面水Eh,且湿润处理Eh（-11.2 m V）显著高于淹水处理（-39.9 m V）。在两种水分管理模式下,淹水处理土壤可交换态Cd、可氧化态Cd和残渣态Cd显著低于湿润处理。SO42-添加可提高土壤可还原态Cd含量,降低可氧化态Cd含量,在淹水处理下SO42-添加是有效的降低土壤Cd活性的方式。【结论】水分管理与SO42-添加会影响土壤Cd行为,农业生产上可以据此寻找治理耕地Cd污染的思路。
期刊：
Separation and Purification Technology,2022年301:122035 ISSN：1383-5866
通讯作者：
Chao Huang<&wdkj&>Ping Wang<&wdkj&>Zhiming Liu
作者机构：
[Liu, Hao; Cheng, Hao; Zheng, Xiaoyu; Huang, Chao; Tian, Haoran; Wang, Ping; Yang, Xiong] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.;[Tian, Zhongyu] Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 611756, Peoples R China.;[Huang, Chao; Wang, Ping] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;[Huang, Su] Zhongnan Univ Econ & Law, Sch Business Adm, Wuhan 430073, Peoples R China.;[Liu, Zhiming] Eastern New Mex Univ, Dept Biol, Portales, NM 88130 USA.
通讯机构：
[Chao Huang; Ping Wang] C;[Zhiming Liu] D;Department of Biology, Eastern New Mexico University, Portales, NM 88130, USA<&wdkj&>College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
关键词：
Co;Mo co -catalyst;Molybdenum disulfide;Peroxymonosulfate;Three-dimensional;Fenton -like
摘要：
A novel 3D Co/Mo co-catalyzed graphene sponges (SCMG) was fabricated by a simple impregnation pyrolysis method, and successfully applied as a highly efficient heterogeneous catalyst in peroxymonosulfate (PMS) activation for rapid and complete elimination of rhodamine B (RhB) within 2 min. The introduction of O contributed to enhanced electron transfer ability of the sponge, and 3D melamine sponges as substrates provided a highly dispersed support for Co/Mo heterojunction. MoS2 co-catalysis accelerated Co(III)/Co(II) conversion and promoted the generation of 1O2, which ensured an improved catalytic activity. The main reactive oxygen species in the SCMG/PMS system were 1O2 and SO.-4 , which contributed to a high reactivity over a wide range of pH (3-9). SCMG/PMS system were highly resistant to anions (Cl- , SO2-4 and H2PO-4 ) and natural organic matter (humic acid), and could be widely used for the degradation of common organic contaminants. Besides, SCMG has good reusability and stability, and the metal leaching was well below existing safety standards over a wide pH range. This work broadens the application range of metal co-catalysis and provides a promising heterogeneous Fenton-like catalyst in refractory organic wastewater treatment.
作者机构：
[Hu, Xi; Jiang, Honghui; Hu, Xinjiang; Zhang, Hengrui; Ouyang, Ke; Wang, Hui; Gong, Jiamin; Fang, Zhengyang; Wang, Ping] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.;[Fang, Zhengyang] Guangzhou Inst Geochem, Chinese Acad Sci, Guangzhou 510640, Peoples R China.;[Guo, Yuan] Inst Bast Fiber Crops, Chinese Acad Agr Sci, Changsha 410205, Peoples R China.;[Wang, Hui] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.
通讯机构：
[Hui Wang; Ping Wang] A;Authors to whom correspondence should be addressed.<&wdkj&>Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
通讯作者：
Rongkui Su<&wdkj&>Xiancheng Ma<&wdkj&>Liqing Li
作者机构：
[Li, Dapeng; Ma, Xiancheng] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China.;[Li, Liqing; Zeng, Zheng] Cent South Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China.;[Su, Rongkui; Wang, Hanqing] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Rongkui Su; Xiancheng Ma] C;[Liqing Li] S;College of Mechanical & Electrical Engineering, Central South University of Forestry and Technology, Changsha 410083, Hunan, China<&wdkj&>College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410083, Hunan, China<&wdkj&>School of Energy Science and Engineering, Central South University, Changsha 410083, Hunan, China
关键词：
GCMC;Nitrogen and oxygen groups;Pore structure;Porous carbon;VOCs adsorption
期刊：
Separation and Purification Technology,2022年285:120386 ISSN：1383-5866
通讯作者：
Shiquan Sun<&wdkj&>Xi Hu
作者机构：
[Zhou, Lu; Lv, Jundong; Chen, Hong; Zhu, Xiaofang; Wu, Haipeng; Sun, Shiquan; Chi, Tianying] Changsha Univ Sci & Technol, Sch Hydraul & Environm Engn, Changsha 410114, Peoples R China.;[Zhou, Lu; Chen, Hong; Wu, Haipeng; Sun, Shiquan] Key Lab Water Sediment Sci & Water Disaster Preve, Changsha 410114, Peoples R China.;[Lv, Jundong; Zhu, Xiaofang; Chi, Tianying] Key Lab Dongting Lake Aquat Ecoenvironm Control &, Changsha 410114, Peoples R China.;[Zhou, Yaoyu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Hu, Xi] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.
通讯机构：
[Shiquan Sun] S;[Xi Hu] C;College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China<&wdkj&>School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, PR China<&wdkj&>Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, PR China
关键词：
Adsorption-reduction;Cr(VI);Iron-clay biochar;Populus nigra
