Article
Engineering, Environmental
Jamil Naser, Onoriode P. Avbenake, Fadimatu N. Dabai, Baba Y. Jibril
Summary: This study investigates the regeneration and utilization of spent bleaching earth (SBE) generated by the vegetable oil refining industry. The results show that methanol-extracted regenerated bleaching earth exhibits superior bleaching property, while n-hexane extracted oil produces more fatty acid methyl esters (FAME) during biodiesel production. Therefore, the choice of solvent depends on the intended application.
Article
Chemistry, Analytical
Zhen Wan, Shaoqing Wang, Zhihe Li, Weiming Yi, Andong Zhang, Yufeng Li, Peng Zhang
Summary: This study aimed to investigate the catalytic characteristics and hydrogen supply of spent bleaching clay (SBC) in the pyrolysis of corncob lignin. Experimental results showed that SBC and corncob lignin exhibited synergistic effects during co-pyrolysis, leading to the enhanced production of target products and the inhibition of undesirable compounds.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Green & Sustainable Science & Technology
Kai Li, Zhu-yu Li, Cheng-Bo Zhang, Jia-qi Zhao, Li Zhao, Ji Liu, Shan-wei Ma, Qiang Lu
Summary: This study focused on the value-increment of spent bleaching clay (SBC) to produce aromatic hydrocarbons and regenerated bleaching clay (RBC) via ex-situ catalytic pyrolysis with HZSM-5. The results showed that the adsorbed oil in SBC could be decomposed almost completely at 450 degrees C. The optimum aromatics yield of 3.49 wt% was achieved at catalytic temperature of 600 degrees C and S/H of 15. The RBC obtained after calcination and acid treatment possessed good porous structures with improved adsorption performance compared to fresh activated bleaching clay (ABC).
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Ning Zhao, Qiyi Ma, Baifa Zhang, Dong Liu, Yanfu Wei, Mengyuan Li, Ting Yu, Haoyu Li, Yuguo Shen, Peng Yuan
Summary: This study proposes a simple strategy for preparing 2-D graphene-like materials using spent bleaching earth. The resulting material exhibits high adsorption capacity, excellent stability, and multiple recycled uses for tetracycline, making it a promising adsorbent for water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Changfa Zhang, Mengyan Yu, Xiangtong Li, Xueguang Li, Yang Liu, Yajie Jin, Jianjun Dai, Long Wang, Chunbao Zhou, Yingwen Zhang, Yanxin Yuan, Junshen Qu, Hejie Yu, Jie Fu, Chenglong Liu, Yan Li, Asif Ali Siyal
Summary: This study utilized fluidized bed pyrolyser (FBP) to recover and regenerate spent bleaching clay (SBC), and found the potential for upgrading it into green fuels and chemicals. The decolorization ability of pyrolysis chars (PCs) increased with pyrolysis temperature, and the heavy metal content in PCs was lower than the national standards, highlighting the significance of this technology.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Wenjie Liu, Kun Yuan, Kecheng Yin, Shixiang Zuo, Chao Yao
Summary: BE/C-A750-1/1, prepared by carbonizing and activating, shows good adsorption capacity for Pb(II). Adsorption and desorption studies indicate that its performance remains stable after multiple cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Zhen Wan, Zhihe Li, Weiming Yi, Andong Zhang, Guo Li, Shaoqing Wang
Summary: To efficiently produce mono-aromatic hydrocarbon (MAHs), a cascade dual catalytic system composed of calcined spent bleaching clay (CSBC) and HZSM-5 was used for co-pyrolysis of lignin with spent bleaching clay (SBC). The effects of temperature, CSBC-to-HZSM-5 ratio, and raw materials-to-catalyst ratio were explored, and the highest bio-oil yield of 21.35 wt% was achieved at a temperature of 550°C, CSBC-to-HZSM-5 ratio of 1:1, and raw materials-to-catalyst ratio of 1:2. The introduction of CSBC inhibited the generation of graphite-like coke by HZSM-5. This study realizes the full resource utilization of SBC and reveals the environmental hazards caused by SBC and lignin waste.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Hucheng Yang, Hao Yu, Jiahao Wang, Tao Ning, Pin Chen, Jing Yu, Siyuan Di, Shukui Zhu
Summary: The study utilized discarded cigarette butts as a precursor to prepare magnetic porous biochar, demonstrating excellent adsorption capacity for tetracycline hydrochloride in water. The adsorption mechanism was mainly dependent on the pore filling effect, electrostatic interaction, and pi-pi interaction. The magnetic porous biochar showed high removal efficiency in real water samples and has great potential for practical applications due to its outstanding reusability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Analytical
Zhen Wan, Zhihe Li, Weiming Yi, Andong Zhang, Ning Li, Liang Gao, Shaoqing Wang
Summary: This study successfully improved the anti-coking performance of HZSM-5 by using CSBC as a binder, while increasing the selectivity for MAHs. After 3 reaction-regeneration cycles, the catalytic activity of CSHZ11 for MAHs was 71.11 % of fresh catalyst. The research demonstrates the feasibility of using binder modification to enhance the anti-coking performance of HZSM-5 and provides a reference for the integrated utilization of SBC and lignin.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Analytical
Xueyi Zhang, Linyao Ke, Qiuhao Wu, Qi Zhang, Xian Cui, Rongge Zou, Xiaojie Tian, Yuan Zeng, Yuhuan Liu, Roger Ruan, Yunpu Wang
Summary: In this study, microwave-assisted catalytic co-pyrolysis of SBC and LDPE was conducted to produce bio-oil rich in MAHs. The findings revealed the synergistic effect of SBC and LDPE, as well as the microwave absorption characteristics of SBC. Furthermore, the high H/Ceff of LDPE promoted the deoxidation of SBC, optimizing the quality of bio-oil.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Engineering, Environmental
Cao Yang, Yanmei Zhu, Jueqin Chen, Tian Wu, Jian Wang, Xiufang Zhao, Wei Sun, Hui Lin, Sihao Lv
Summary: In this study, tetracycline hydrochloride (TCH)-saturated MOF adsorbent was converted into an efficient catalyst for antibiotic degradation. The carbon matrix and doped nitrogen were found to play a crucial role in the degradation process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Yongde Liu, Jinsong Li, Lairong Wu, Dongjin Wan, Yahui Shi, Qiaochong He, Jing Chen
Summary: This study developed a synergistic adsorption and Fenton-like degradation method for tetracycline hydrochloride using magnetic spent bleaching earth carbon (Mag-SBE@C) with H2O2, achieving high degradation efficiency. The study also analyzed reaction conditions, intermediates, and the characteristics of Mag-SBE@C to demonstrate its excellent stability and potential for antibiotic elimination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Xiuhua Yang, Linyao Ke, Qiuhao Wu, Xian Cui, Qi Zhang, Xiaojie Tian, Yuan Zeng, Kirk Cobb, Yuhuan Liu, Roger Ruan, Yunpu Wang
Summary: The study shows that microwave-assisted pyrolysis is an efficient and fast method for producing aromatic bio-oil from spent bleaching clay (SBC). Compared to electric heating, microwave heating not only saves reaction time and energy consumption but also promotes the formation of aromatic hydrocarbons. The optimal pyrolysis conditions include a temperature of 500°C, a feedstock to catalyst mass ratio of 10/1, and a nitrogen flow rate of 50 mL/min.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Engineering, Environmental
Yongde Liu, Yao Chen, Yahui Shi, Dongjin Wan, Jing Chen, Shuhu Xiao
Summary: The environmentally friendly clay/carbon composite was prepared by pyrolysis of industrial waste and tested for dye removal. The material showed higher adsorption capacity, exothermic and spontaneous adsorption process, pH-independent, and potential for dye elimination, possibly due to various interactions.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Environmental Sciences
Yue Chen, Yahui Shi, Dongjin Wan, Jihong Zhao, Qiaochong He, Yongde Liu
Summary: The study demonstrated that the nano Fe-0/SBE@C + PS system showed excellent TCH removal efficiency under specific conditions, with optimal reaction conditions being 5% nano Fe-0 load, 0.2 g/L nano Fe-0/SBE@C dosage, initial pH of 3, and PS/TCH molar ratio of 100:1.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Chemical
Yongde Liu, Xiaoqian Yin, Jinshuang Wang, Qiaochong He, Yahui Shi, Jihong Zhao, Dongjin Wan
Summary: The study explored the potential of using antibiotic bacterial residues (ABR) in the development of wood adhesives. A new wood adhesive based on ABR was prepared by modifying ABR with NaOH, polyacrylamide (PAM), and sodium dodecyl benzene sulfonate (SDBS), with epoxy resin (EP) used as a crosslinking agent. The experimental results showed that the optimal conditions for the adhesive included specific amounts of ABR, PAM, NaOH, SDBS, and EP, which directly impacted the water resistance, mechanical strength, and thermal stability of the adhesive. Application of the ABR adhesive in plywood production resulted in meeting the requirements for interior-use plywood wet shear strength.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Yongde Liu, Jinsong Li, Lairong Wu, Dongjin Wan, Yahui Shi, Qiaochong He, Jing Chen
Summary: This study developed a synergistic adsorption and Fenton-like degradation method for tetracycline hydrochloride using magnetic spent bleaching earth carbon (Mag-SBE@C) with H2O2, achieving high degradation efficiency. The study also analyzed reaction conditions, intermediates, and the characteristics of Mag-SBE@C to demonstrate its excellent stability and potential for antibiotic elimination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Dongjin Wan, Yao Chen, Yahui Shi, Yongde Liu, Shuhu Xiao
Summary: In this study, a novel mesoporous carbonized material (HSBE/C) was prepared from clay/carbon composite (SBE/C) treated with hydrofluoric acid (HF) for the efficient adsorption of bisphenol A (BPA) in water. The enhanced adsorption capacity of HSBE/C was achieved by increasing the specific surface area, and the adsorption mechanism likely involved hydrogen bonding, electrostatic interaction, and hydrophobic interaction, with stability and no secondary pollution observed during the process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Applied
Xue Song, Yingming Zhang, Xiangke Cui, Fangfang Liu, Hailiang Zhao
Summary: The utilization of construction waste to prepare chabazite as an adsorbent for methylene blue removal is feasible and environmentally friendly. The synthesized chabazite has a crystalline structure, typical functional groups, and a large specific surface area, showing a high adsorption capacity for MB.
ADSORPTION SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Jing Chen, Mengqi Gu, Yifang Zhou, Dongjin Wan, Qiaochong He, Yahui Shi, Yongde Liu
Summary: The novel Electro-dialysis ion-exchange membrane bioreactor (EDIMB) showed efficient removal of perchlorate and nitrate from aqueous solution by combining electrodialysis with bioreduction. The process of pollutant removal in water and bio compartments can be well simulated using the First-order kinetic model and Zero-Michaelis-Menten model. Microorganisms play a promoting role in facilitating pollutant migration in the biological reaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Yue Chen, Yahui Shi, Dongjin Wan, Jihong Zhao, Qiaochong He, Yongde Liu
Summary: The study demonstrated that the nano Fe-0/SBE@C + PS system showed excellent TCH removal efficiency under specific conditions, with optimal reaction conditions being 5% nano Fe-0 load, 0.2 g/L nano Fe-0/SBE@C dosage, initial pH of 3, and PS/TCH molar ratio of 100:1.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Yahui Shi, Xiaofan Cheng, Dongjin Wan, Xiangxiang Chen, Yongde Liu, Zhixiang Zhang, Yu Wang, Yafei Gao
Summary: In this study, a micro-electrolysis system using iron-cetyltrimethylammonium chloride modified spent bleaching earth carbon was proposed for the removal of bromate from water. The study found that the Fe/SBE@C mass ratio, CTAC concentration, pH, and reaction atmosphere all had an impact on the efficiency of bromate removal. The research also revealed that CTAC modification and electrochemical reduction were the main mechanisms involved in bromate removal.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Yao Chen, Yahui Shi, Dongjin Wan, Yongde Liu, Yifan Wang, Xinze Han, Mengxiao Liu
Summary: In this study, a clay/carbon composite derived from waste of the edible oil refining industry (SBE/C) and iron-carbon composites (Fe-SBE/C) were successfully synthesized for the degradation of bisphenol A (BPA). Fe-SBE/C exhibited higher removal efficiency of BPA compared to the traditional Fenton system.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Yahui Shi, Jinsong Li, Yishu Sun, Dongjin Wan, Heyu Wan, Yifan Wang
Summary: In this study, highly active g-C3N4-based photocatalysts (FeOOH NPs/Nvac-CNNS) were successfully constructed, exhibiting degradation and mineralization efficiency of oxytetracycline hydrochloride (OTC) of 92.83% and 73.86% within 90 min, respectively. FeOOH NPs/Nvac-CNNS showed excellent reutilization and practical application potential in the purification of OTC pollution at high and low concentrations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Qiaochong He, Yang Liu, Dongjin Wan, Yongde Liu, Shuhu Xiao, Yiduo Wang, Yahui Shi
Summary: This study demonstrates the feasibility of autotrophic Sb(V) bio-reduction and removal coupled to anaerobic oxidation of elemental sulfur (S-0) for the first time. The results show that Sb(V) can be effectively reduced to Sb(III) by autotrophic bacteria using S-0 as electron donor, and Sb(III) then reacts with sulfide to form an Sb(III)-S precipitate, achieving efficient total Sb removal. The presence of nitrate inhibits Sb removal, while co-existing sulfate enhances sulfide generation and promotes Sb reduction and precipitation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Yahui Shi, Hongkui Zhang, Yawei Wei, Dongjin Wan, Yongde Liu, Yafei Gao
Summary: This study developed a new type of iron-carbon composite using spent bleaching earth (SBE) to remove Cr(VI) from water. The adsorption and reduction mechanism of FexOy/SBE@C for Cr(VI) removal were investigated, and it was found that FexOy/SBE@C exhibited satisfactory performance in removing Cr(VI) through physical adsorption and chemical reduction.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Jie Zhang, Fanbao Deng, Xiaoqian Yin, Xue Song, Yongde Liu, Jihong Zhao, Runchao Sun, Liwen Zhang
Summary: In this study, loofah sponge-based biochar was used to remove oxytetracycline hydrochloride and chloramphenicol from water. The adsorption performance and mechanisms were discussed, and it was found that the biochar had high adsorption capacities for both antibiotics.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Food Science & Technology
Feiyue Wang, Xue Song, Yongde Liu, Jie Zhang, Feihong Li, Leibo Ding
Summary: This study investigated the effects of cooking Brassica chinensis with noodles on nitrate and nitrite content and qualities of noodles. The results showed that adding Brassica chinensis significantly increased the content of nitrate and nitrite in noodles and affected the qualities of noodles. Low temperature storage reduced the nitrite content of noodles.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Chemistry, Multidisciplinary
Xue Song, Hongkui Zhang, Jie Zhang, Runchao Sun, Jihong Zhao, Hailiang Zhao, Junkai Hu, Yongde Liu
Summary: In this study, a porous carbonaceous adsorbent was prepared from sycamore flocs by pyrolysis method and K2CO3 activation. The optimal material (SFB2-900) had a huge surface specific area and showed excellent adsorption performance for ciprofloxacin. The adsorption behavior was well described by kinetic and isothermal models, and the material had great potential for practical applications.
Article
Energy & Fuels
Tongyu Wei, Xue Song, Jie Zhang, Yongde Liu, Hailiang Zhao, Jihong Zhao, Guangsheng Chen
Summary: In this study, a novel biochar was prepared from willow catkins through two-step pyrolysis and KOH activation for the adsorption of tetracycline hydrochloride in water. The effects of pyrolysis temperature and activator amount on adsorption capacity were investigated. The results showed that the biochar with the largest adsorption capacity, named as KWCBC, was obtained when the pyrolysis temperature of the first and second stage was 600 degrees C and 800 degrees C, and the mass ratio of KOH and WC biochar was 4.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
