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学者姓名:康得军
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制药废水具有水质波动大、可生化性差及化学需氧量高等特点,一直是废水处理中的难题.其中的抗生素由于使用量大导致向环境中持续排放,并表现出"伪持久性"滞留的特点,难以从水体中彻底去除.为了实现制药废水的高效处理,分析了制药废水的水质特性以及其中抗生素去除的难点,系统阐述了生物炭的基本特性及其强化污染物去除的原理,总结了常规污水处理工艺在去除抗生素方面存在的问题,梳理并综述了生物炭耦合工艺提升污水处理效果的研究进展.结果显示,生物炭材料的多孔结构、带表面电荷及丰富的特殊表面官能团等特性使其具有良好吸附抗生素的能力,通过与常规污水处理工艺相结合可显著提高对制药废水的处理效果,如生物炭的引入强化了膜生物反应器、活性污泥法、厌氧消化及高级氧化对抗生素的去除效果,同时提高了系统的稳定性,降低了工艺物耗和能耗等.建议进一步开展生物炭制备过程与成炭特性的相关性研究,加强生物炭耦合工艺去除污染物机理的探究,推广其在制药废水处理中的应用,以推动制药废水处理技术的创新和进步.
Keyword :
制药废水 制药废水 工艺耦合 工艺耦合 抗生素 抗生素 生物炭催化氧化 生物炭催化氧化 生物炭吸附 生物炭吸附
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GB/T 7714 | 陈瀚洋 , 赵颖 , 康得军 et al. 生物炭耦合工艺处理含抗生素制药废水研究进展 [J]. | 环境工程技术学报 , 2025 , 15 (1) : 238-248 . |
MLA | 陈瀚洋 et al. "生物炭耦合工艺处理含抗生素制药废水研究进展" . | 环境工程技术学报 15 . 1 (2025) : 238-248 . |
APA | 陈瀚洋 , 赵颖 , 康得军 , 龚斌 , 薛浩天 , 李庆旭 et al. 生物炭耦合工艺处理含抗生素制药废水研究进展 . | 环境工程技术学报 , 2025 , 15 (1) , 238-248 . |
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Antibiotics in hospital wastewater has become a critical issue due to their potential risks to human health and ecosystems. Biochar as a cost-effective and environmental-friendly carbon material has been employed for removing antibiotics. This article gives a holistic view of the properties of advanced biochar-based materials and clarifies mechanisms on removal of specific antibiotics from hospital wastewater. The increased pyrolysis temperature prepares the modified biochar with higher porosity and larger specific surface for enhancing adsorption. The metal-modified biochar possesses abundant functional groups, limits the leaching of metal ions, and increases the conductivity for improving activation of advanced oxidation process (AOP). Adsorption is significantly affected by the pyrolysis temperature, solution pH, and properties of modified biochar and antibiotics. The metal-modified biochar-assisted AOP can effectively degrade the pollutants via generating more reactive oxygen species. Weak acidic and/or weak alkaline condition promotes the degradation process in persulfate and peroxymonosulfate systems or during electrochemical oxidation process. Antibiotics removal at a wide pH range (3-11) can be achieved using Fenton-like and photo-Fenton systems with the presence of metal-modified biochar. Future research should focus on development of novel biochar with high reusability and great capability in removing a broad range of specific antibiotics.
Keyword :
Adsorption Adsorption Advanced oxidation process Advanced oxidation process Antibiotics Antibiotics Degradation Degradation Mechanism Mechanism Metal-modified biochar Metal-modified biochar
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GB/T 7714 | Xue, Haotian , Deng, Lijuan , Kang, Dejun et al. Advanced biochar-based materials for specific antibiotics removal from hospital wastewater via adsorption and oxidative degradation [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (6) . |
MLA | Xue, Haotian et al. "Advanced biochar-based materials for specific antibiotics removal from hospital wastewater via adsorption and oxidative degradation" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 6 (2024) . |
APA | Xue, Haotian , Deng, Lijuan , Kang, Dejun , Zhao, Ying , Zhang, Xinbo , Liu, Ying et al. Advanced biochar-based materials for specific antibiotics removal from hospital wastewater via adsorption and oxidative degradation . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (6) . |
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概述了人工湿地的发展历史,分析了其温室气体排放研究现状,详细阐述了湿地类型、基质种类、进水C/N、植物种类及溶解氧浓度等对人工湿地温室气体排放的影响.在此基础上,综述了人工湿地温室气体减排的具体措施及其效果.最后,对人工湿地温室气体减排研究的发展方向进行了展望.
Keyword :
人工湿地 人工湿地 减排措施 减排措施 影响因素 影响因素 排放通量 排放通量 温室气体 温室气体
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GB/T 7714 | 康得军 , 张芳 , 宋广清 et al. 人工湿地温室气体排放影响因素及相关作用机制研究进展 [J]. | 环境污染与防治 , 2024 , 46 (10) : 1508-1514 . |
MLA | 康得军 et al. "人工湿地温室气体排放影响因素及相关作用机制研究进展" . | 环境污染与防治 46 . 10 (2024) : 1508-1514 . |
APA | 康得军 , 张芳 , 宋广清 , 刘勇丽 , 刘希平 , 夏训峰 . 人工湿地温室气体排放影响因素及相关作用机制研究进展 . | 环境污染与防治 , 2024 , 46 (10) , 1508-1514 . |
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This study focused on Duihekou Reservoir, a typical deep-water reservoir located in the southeastern hilly and mountainous areas of China. A one-year field investigation was conducted to collect columnar sediment column samples from the main water bodies. Detailed analyses were conducted on the phosphorus concentrations, fractions, interstitial water profile characteristics, and spatiotemporal changes of fluxes across the sediment-water interface. The results showed that the average total phosphorus (TP) concentrations in the surficial sediment of the reservoir ranged from 470.8 to 1012.3mg/kg, with an average of 688.4 ± 186.48mg/kg. An increasing trend of TP concentrations was discovered from the upstream to downstream. The most severe phosphorus pollution was discovered around the dam. The phosphorus fractions followed a descending order of Al-P (352.61mg/kg) > Fe-P (98.10mg/kg) > Res-P (88.77mg/kg) > Ca-P (72.42mg/kg) > Org-P (33.38mg/kg) > Ex-P (1.64mg/kg). Overall, the sediment in the entire reservoir acted as a source of phosphorus to the water, with the highest risk of release in autumn and most of the sediment in winter presenting as a sink of phosphorus. The average static release flux and diffusion flux of phosphorus were (0.81±2.34) and (2.15±3.47) mg/(m2·d), respectively. The annual phosphorus release amounts obtained by the two methods were 1.92 and 3.67 tons respectively, with the highest release amount in autumn. The conversion of Fe-P might be an important factor controlling phosphorus release from the sediment. The anaerobic dissolution and release of Fe-P caused by oxygen stratification will increase the phosphorus concentration in the lower layer of the water column, which would subsequently increase the phosphorus concentration in the whole water column after thermal stratification. After a large amount of phosphorus is released in autumn, more attention should be paid to the phosphorus concentration in the water influenced by the subsequent thermal inversion. © 2024 Chinese Society for Environmental Sciences. All rights reserved.
Keyword :
Aluminum compounds Aluminum compounds Calcium compounds Calcium compounds Iron compounds Iron compounds Phosphorus Phosphorus Reservoirs (water) Reservoirs (water) River pollution River pollution Rivers Rivers Surficial sediments Surficial sediments
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GB/T 7714 | Tan, Li-Xian , Kang, De-Jun , Liu, Cheng et al. Mechanisms of phosphorus source-sink transformation across the sediment-water interface of a hilly and mountainous reservoir [J]. | China Environmental Science , 2024 , 44 (4) : 2137-2147 . |
MLA | Tan, Li-Xian et al. "Mechanisms of phosphorus source-sink transformation across the sediment-water interface of a hilly and mountainous reservoir" . | China Environmental Science 44 . 4 (2024) : 2137-2147 . |
APA | Tan, Li-Xian , Kang, De-Jun , Liu, Cheng , Zhu, Li-Zhao , Shen, Qiu-Shi , Chen, Kai-Ning . Mechanisms of phosphorus source-sink transformation across the sediment-water interface of a hilly and mountainous reservoir . | China Environmental Science , 2024 , 44 (4) , 2137-2147 . |
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Phosphate recovery from water is essential for reducing water eutrophication and alleviating the phosphorus resource crisis. In this study, spent coffee grounds and CaCl2 were used as raw materials and a modifier, respectively, to create a novel calcium modified biochar (MBC) for removing phosphorus from water. The modified biochar (MBC) was the best at removing phosphorous when the modifier concentration was 1.5 M with theoretically maximum adsorption capacity of 70.26 mg/g. MBC also performed well in the wide pH range of 3-11 under different phosphorus concentration gradients, with phosphorus removal efficiency of more than 50 %. According to kinetic analysis, the adsorption process at low phosphorus concentrations (50-100 mg/L) can be more properly described by the pseudo-first-order model, while the pseudo-second-order model best describes the adsorption process at high concentrations (200-600 mg/L). The thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic. Characterization results revealed that surface precipita-tion, complexation, and ligand exchange were the dominant mechanisms of phosphorus adsorption. MBC has great potential to recover phosphorus from wastewater.
Keyword :
Adsorption Adsorption Mechanism Mechanism Modified biochar Modified biochar Phosphorus Phosphorus Spent coffee grounds Spent coffee grounds
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GB/T 7714 | Liu, Ying , Wang, Shuyan , Huo, Jiangbo et al. Adsorption recovery of phosphorus in contaminated water by calcium modified biochar derived from spent coffee grounds [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 909 . |
MLA | Liu, Ying et al. "Adsorption recovery of phosphorus in contaminated water by calcium modified biochar derived from spent coffee grounds" . | SCIENCE OF THE TOTAL ENVIRONMENT 909 (2023) . |
APA | Liu, Ying , Wang, Shuyan , Huo, Jiangbo , Zhang, Xinbo , Wen, Haitao , Zhang, Dan et al. Adsorption recovery of phosphorus in contaminated water by calcium modified biochar derived from spent coffee grounds . | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 909 . |
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The production of Integrated circuits (ICs) generates wastewater with a high concentration of residual fluoride ions, necessitating highly efficient fluorine removal methods. In this study, a novel composite carrier was developed using a hydrothermal synthesis method to load Al-MOF and biochar (BC) onto polyurethane foam (PUF), resulting in the composite foam of Al-MOF-PUF@BC. The results showed that the composite carrier exhibited a stable fluoride removal effect, with a maximum adsorption capacity of 16.52 mg/g at room temperature. The adsorption isotherm curves were consistent with the Langmuir isotherm model, and the adsorption kinetics were well-described by the pseudo-first-order model. The mechanism of fluorine adsorption on Al-MOFPUF@BC was ligand exchange with hydroxyl groups and the formation of F-Al bonds. Density functional theory (DFT) calculations revealed that the adsorption energy reached -246.7 eV, indicating stable adsorption for fluoride ions. The composite foam demonstrated excellent regenerative properties and was effective for fluoride removal in actual IC wastewater.
Keyword :
Adsorption Adsorption Al-MOF Al-MOF Bone carbon Bone carbon Density functional theory Density functional theory Fluorine removal Fluorine removal Polyurethane foam Polyurethane foam
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GB/T 7714 | Wang, Zhe , Gu, Xinyue , Zhang, Xinbo et al. New easily recycled carrier based polyurethane foam by loading Al-MOF and biochar for selective removal of fluoride ion from aqueous solutions [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 901 . |
MLA | Wang, Zhe et al. "New easily recycled carrier based polyurethane foam by loading Al-MOF and biochar for selective removal of fluoride ion from aqueous solutions" . | SCIENCE OF THE TOTAL ENVIRONMENT 901 (2023) . |
APA | Wang, Zhe , Gu, Xinyue , Zhang, Xinbo , Wang, Xiao , Zhang, Jianqing , Liu, Ying et al. New easily recycled carrier based polyurethane foam by loading Al-MOF and biochar for selective removal of fluoride ion from aqueous solutions . | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 901 . |
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Extensive studies have been carried out on phosphate removal by zero valent iron (ZVI). Different mechanisms of phosphate removal by ZVI such as phosphate adsorption and precipitation of ferric phosphate and vivianite (Fe3(PO4)2.8H2O) have been reported. In this study, attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray powder diffraction (XRD), and X-ray absorption near edge spectroscopy (XANES) were used to elucidate the mechanisms of phosphate removal by micron-scale zero-valent (mZVI). Time-series ATR-FTIR analysis revealed that phosphate was removed by ZVI in two steps: a) adsorption of phosphate in the first 3 days, and b) slow conversion of the adsorbed phosphate into the precipitated form in 6 days. XRD and XANES analysis determined that iron oxides, ferric ion, and ZVI with oxide layer inhibited the formation of vivianite, resulting in the formation of phosphate precipitates, such as H2Fe(II)P2O7. The results suggested that phosphate is removed by ZVI mainly through precipitation under aerobic conditions. The knowledge gained in this study improves the fundamental understanding of the phosphate removal processes via ZVI.
Keyword :
Adsorption Adsorption Phosphate Phosphate Precipitation Precipitation Vivianite Vivianite Zero valent iron Zero valent iron
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GB/T 7714 | Zhao, Ying , Li, Qingxu , Shi, Qiantao et al. Mechanisms of phosphate removal by Micron-Scale Zero-Valent iron [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 319 . |
MLA | Zhao, Ying et al. "Mechanisms of phosphate removal by Micron-Scale Zero-Valent iron" . | SEPARATION AND PURIFICATION TECHNOLOGY 319 (2023) . |
APA | Zhao, Ying , Li, Qingxu , Shi, Qiantao , Xi, Beidou , Zhang, Xinyi , Jian, Zhiqiang et al. Mechanisms of phosphate removal by Micron-Scale Zero-Valent iron . | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 319 . |
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采用亚硝酸盐作为还原剂,以间接测定亚硝酸盐含量的方式,建立了以气相分子吸收光谱法来快速定量测定水中高锰酸盐指数的方法.试验结果表明,标准曲线相关系数大于0.9995,该方法的检出限为0.066mg/L,检出范围为0.4~5.00mg/L,相对标准偏差为1.56%~1.67%.此外,本文还研究了气相分子吸收光谱法与国际法采用酸式或碱式消解不同水样的试验,进一步证明该法具有准确度高、精密度高和测定速度快的特点,适合分析大批量水样、样品消解和数据分析,可实现全自动化,提高工作效率.
Keyword :
亚硝酸盐 亚硝酸盐 气相分子吸收光谱法 气相分子吸收光谱法 自动 自动 高锰酸盐指数 高锰酸盐指数
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GB/T 7714 | 柯鹏振 , 刘雄 , 吴雅琴 et al. 自动气相分子吸收光谱法测定水体中高锰酸盐指数 [J]. | 当代化工研究 , 2023 , (2) : 68-71 . |
MLA | 柯鹏振 et al. "自动气相分子吸收光谱法测定水体中高锰酸盐指数" . | 当代化工研究 2 (2023) : 68-71 . |
APA | 柯鹏振 , 刘雄 , 吴雅琴 , 夏丽星 , 朱娟 , 康得军 . 自动气相分子吸收光谱法测定水体中高锰酸盐指数 . | 当代化工研究 , 2023 , (2) , 68-71 . |
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为探究天然煤矸石在雨水浸泡淋滤作用下重金属元素的释放规律及特征,通过扫描电镜(SEM)对天然煤矸石进行表征以观察其淋滤前后的微观形貌,借助X射线衍射(XRD)技术测定煤矸石淋滤前后的矿物成分组成及变化情况.结合模拟降水连续静态浸泡与动态淋滤试验,考察在不同固液比、粒径、pH、土壤介质条件下煤矸石中重金属元素的释放规律与特性.结果表明:①淋滤后的煤矸石表面凹凸结构较多,淋滤前后煤矸石中各矿物相含量差异较小.②As、Mn的浸出浓度均较高,最大释放率大小表现为As>Cd>Cu≈Ni>Mn>Cr>Zn>Pb.As的累积释放对周边土壤环境以及地下水产生不利影响的风险较高.③连续动态淋滤试验在pH为3时,Mn、Cu、Zn、Ni的累积释放量明显较高,As、Cr在中性条件下的累积释放量高于在酸性条件下.引入土壤介质这一因素后,Cr、As的累积释放量均明显减少,这两种重金属元素均呈现出在土壤中积累的状态.研究显示:对于相同煤矸石堆存量,降雨量越大,重金属的释放总量越高,固液比为1:20时,As释放量最高可达2.822μg/L;Cr、As呈现出在土壤中积累的状态,煤矸石淋滤后Cr、As对土壤存在潜在污染风险,同时也需考虑其对周边地下水的影响.
Keyword :
影响因素 影响因素 淋滤 淋滤 煤矸石 煤矸石 释放规律 释放规律 重金属元素 重金属元素
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GB/T 7714 | 康得军 , 张芳 , 吕茳芏 et al. 浸泡淋滤作用下煤矸石重金属元素的释放规律及特征研究 [J]. | 环境科学研究 , 2023 , 36 (1) : 54-62 . |
MLA | 康得军 et al. "浸泡淋滤作用下煤矸石重金属元素的释放规律及特征研究" . | 环境科学研究 36 . 1 (2023) : 54-62 . |
APA | 康得军 , 张芳 , 吕茳芏 , 龚亚萍 , 赵颖 , 脱向银 . 浸泡淋滤作用下煤矸石重金属元素的释放规律及特征研究 . | 环境科学研究 , 2023 , 36 (1) , 54-62 . |
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通过用高效液相色谱法分析采集武汉周边有代表性的水样中的硝基酚类化合物,有针对性的分析水样受硝基酚类化合物的污染情况.结果表明,基于此HPLC可用于检测环境水样中对硝基苯酚、邻硝基苯酚、3-甲基-4-硝基苯酚和2,6-二硝基苯酚.本研究还发现武汉市周边生活污水和地表水中的对硝基苯酚、邻硝基苯酚量超出饮用水标准,地下水中上述4种硝基苯酚类化合物含量水平均达到可饮用的标准.
Keyword :
水污染 水污染 环境水样 环境水样 环境治理 环境治理 硝基苯酚 硝基苯酚 高效液相色谱法 高效液相色谱法
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GB/T 7714 | 柯鹏振 , 刘雄 , 余开升 et al. HPLC检测环境水样中硝基苯酚类化合物的研究 [J]. | 当代化工研究 , 2022 , (17) : 58-60 . |
MLA | 柯鹏振 et al. "HPLC检测环境水样中硝基苯酚类化合物的研究" . | 当代化工研究 17 (2022) : 58-60 . |
APA | 柯鹏振 , 刘雄 , 余开升 , 马先锋 , 杨安平 , 康得军 . HPLC检测环境水样中硝基苯酚类化合物的研究 . | 当代化工研究 , 2022 , (17) , 58-60 . |
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