Article
Environmental Sciences
Nianping Chi, Jiajun Liu, Minghua Lei, Li Feng
Summary: The introduction of amphiphilic CPAM TP-ADB with cationic microblock structure and hydrophobic association improves the dewatering performance of PD sludge.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Jing Ai, Zhiyue Wang, Dionysios D. Dionysiou, Ming Liu, Yun Deng, Mingyue Tang, Guiying Liao, Aibin Hu, Weijun Zhang
Summary: The study utilized Fe(II)-sulfite oxidation and polyacrylamide flocculation (F/S-PAM) treatment to remove the bound water in waste activated sludge and improve sludge dewaterability. The radicals generated by F/S could decompose EPS, releasing bound water, while PAM caused re-flocculation of disintegrated sludge flocs, enhancing sludge filterability.
Article
Engineering, Environmental
Xiaohui Chen, Xun-an Ning, Xiaojun Lai, Yi Wang, Yaping Zhang, Yao He
Summary: The study found that chlorophenols (CPs) from textile dyeing plants pose a potential moderate to high risk to the environment, and the Fenton process can help in treating hazardous sludge with CPs. Proper treatment conditions can lower the rate of increase in CPs content.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Yuning Chen, Xuhao Li, Wang Zizeng, Li Feng, Jiehong Xie, Zeluan Lin, Zhihong Xu, Bingzhi Liu, Xiang Li, Huaili Zheng
Summary: The research successfully synthesized a new type of template copolymer with a distinct cationic microblock structure, which can effectively improve the flocculation structure and enhance treatment efficiency, leading to an improved sludge dewatering performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Chunhui Yan, Manjun Zhan, Kewei Xv, Siyuan Zhang, Ting Liang, Ran Yu
Summary: In this study, a cold-tolerant Bdellovibrio sp. CLL13 strain was screened, which significantly improved the dewaterability of waste activated sludge (WAS) by reducing viscosity and mitigating the negative effects of low temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Polymer Science
Kai Yang, Jianqi Sun, Hongning Liu, Weichao Yang, Lei Dong
Summary: With the increase in sewage-sludge production, the pyrolytic disposal method has gained attention. Cationic polyacrylamide (CPAM) and sawdust were used to enhance the dehydration process, resulting in reduced moisture content. The addition of sawdust improved volatile substance release and reduced activation energy during pyrolysis. Apparent activation energies ranged from 135.3 kJ/mol to 174.8 kJ/mol, and the nucleation-and-growth model was identified as the most appropriate mechanism function.
Article
Engineering, Chemical
Yuchen Yang, Kai Zhou, Ganpei Tian, Bo Liu, Zihou Jiang, Bo Bian
Summary: In this study, the synergistic effects between CPAM and synthetic fibers were investigated, which improved the dewaterability and resource utilization of wastewater sludge. The combination of CPAM and fiber increased the zeta potential of sludge and decreased the compressibility coefficient of sludge cake, achieving the effect of destabilizing the system and enhancing the rigidity of sludge cake.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Candie Xie, Jingyong Liu, Jialin Liang, Wuming Xie, Fatih Evrendilek, Weixin Li
Summary: The dynamics of heavy metal speciation and flue gas emissions during the incineration of textile dyeing sludge were quantified with different levels of CaO addition, incineration temperature, and ash minerals. Addition of CaO improved the retention behaviors of certain heavy metals and inhibited various gas emissions. The optimal operational temperature for both environmental quality and economic efficiency was determined using neural network-based multi-response optimization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Xiaoyan Bai, Haichuan Sun, Jian Sun, Zhihua Zhu
Summary: The electrochemical Fe2+-activated peroxymonosulfate oxidation process was investigated for removing PAHs from TDS. The results showed that under specific reaction conditions, the PAHs in the sludge could be effectively removed, with low-ring PAHs being degraded preferentially over high-ring PAHs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Xin Zhang, Hongtao Zhang, Tao Liu, Jiawan Yang, Zhenchang Wang, Peng Chen
Summary: The study investigated the effects of oxidation and flocculation conditioning on sludge dewaterability and found that FeCl3 played a crucial role in improving it. The combined use of potassium permanganate and FeCl3 significantly enhanced sludge dewaterability, with a reduced dosage of FeCl3.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Environmental Sciences
Junsen Wang, Tianrun Wang, Zonglin Li, Bomin Fu, Yuhui Zhai, Weijie Wang, Mudi Zhai, Jean-Marc Chovelon, Yuxiu Gong, Hongtao Wang
Summary: In this study, an advanced oxidation process using electrolysis coupled with peroxymonosulfate (E/PMS) was used to improve the dewaterability of waste activated sludge (WAS). The results showed that the E/PMS process significantly reduced the water content and capillary suction time of the sludge, indicating improved dewaterability. The generation of reactive oxygen species in the process damaged the extracellular polymeric substances (EPS) and reduced the viscosity of the sludge, leading to a decrease in sludge volume and improved disposal efficiency. Additionally, the E/PMS treatment also enhanced the degradation of organic matter and reduced the toxicity and bioavailability of heavy metals in the sludge.
Article
Multidisciplinary Sciences
Pan Hu, Shaohang Shen, Hu Yang
Summary: This study investigated the sludge dewatering performance of two series of binary graft cationic starch-based flocculants with different hydrophilicity and charge density. With increased charge density and moderate hydrophobicity, the dewaterability of sludge was found to improve, resulting in lower filter cake moisture content and resistance to filtration. The structure-activity relationship of these flocculants was evaluated quantitatively using a second-order polynomial model.
SCIENTIFIC REPORTS
(2021)
Article
Green & Sustainable Science & Technology
Wanqing Ding, Wenbiao Jin, Xu Zhou, Qinhui Yang, Chuan Chen, Qilin Wang
Summary: This study investigated the dewaterability of anaerobic granular sludge (AGS) by Fe(II)-PDS conditioning, finding that Fe(II)-PDS conditioning can enhance dewaterability by breaking down EPS layers and microbial cell structures, releasing bound water and facilitating sludge re-flocculation. Protein was identified as the primary component in AGS and showed a strong correlation with dewaterability.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Mingyue Tang, Zhiyue Wang, Weijun Zhang, Dongsheng Wang
Summary: Thermal activated persulfate oxidation was used to improve the dewaterability of wastewater sludge by decomposing macromolecular proteins. This process was found to generate beneficial radicals and enhance sludge dewaterability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Taixing Han, Jingjing Zheng, Yutong Han, Xiangyang Xu, Mengyan Li, Cory Schwarz, Liang Zhu
Summary: This study investigated the impact of different types of wastewater on the microbial communities in activated sludge, showing that textile-dyeing wastewater reduces the richness and diversity of microbial communities, selectively enriches microbial taxa with aromatic degradation and denitrification potentials, and inhibits the majority of metabolic functions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Li Feng, Xuhao Li, Wencong Lu, Zhen Liu, Chuang Xu, Yao Chen, Huaili Zheng
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Article
Environmental Sciences
Li Feng, Xuhao Li, Zizeng Wang, Bingzhi Liu, Yuning Chen, Huaili Zheng
Summary: The study demonstrated the formation of an attractive anionic microblock structure in TPAS, which enhanced the capability of charge neutralization, electrical patching, and bridging. Conditioning hematite wastewater with TPAS containing this novel structure resulted in larger particle size and denser structure of hematite flocs, facilitating a reduction in turbidity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Zhiyong Wang, Xuhao Li, Li Feng, Bingzhi Liu, Farzaneh Shamsa
Summary: In this study, gold nanoparticles supported on dendritic fibrous nanosilica doped with alpha-cyclodextrin were used as a catalyst for effectively carbonylating cinnamyl chloride and phenylacetylene with CO2. Various techniques were used to characterize the nanostructures, showing their effective and novel catalytic behavior in the synthesis of specific compounds.
Article
Materials Science, Ceramics
Zhenzhen Jiang, Li Feng, Junren Zhu, Bingzhi Liu, Xuhao Li, Yuning Chen, Sarfaraz Khan
Summary: This study successfully synthesized CuInSe2/NiFe2O4 nanocomposites using a solid-state preparation method and found that they showed excellent degradation of endocrine disruptors under visible light. The hydroxyl radicals and holes in CuInSe2/NiFe2O4 nanocomposites played a crucial role in the removal of pollutants.
CERAMICS INTERNATIONAL
(2021)
Article
Agricultural Engineering
Li Feng, Xuhao Li, Zizeng Wang, Bingzhi Liu
Summary: Catalytic hydrothermal liquefaction of lignin was studied using different solvents and catalyst conditions, revealing that Ni-Al/MCM-41 catalyst achieved the highest bio-oil yield in ethanol solvent. Alcoholic solvents promoted lignin decomposition, while water solvent significantly improved lignin degradation in the presence of catalyst.
BIORESOURCE TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Sheng Li, Renzi Zhang, Daoxin Wang, Li Feng, Kang Cui
Summary: The study utilized doxorubicin as a drug delivery carrier and revealed a magnetic and pH-responsive drug delivery system that significantly enhanced cancer cell killing capability.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Moxi Wang, Li Feng, Xueyi You, Huaili Zheng
Summary: The fine molecular structure of a flocculant plays a crucial role in determining its internal flocculation mechanism and final application properties. This study successfully synthesized chitosan-based polymers with different properties and investigated the effects of structural factors on their flocculation performance. The results showed that flocculants with abundant graft chains exhibited better flocculation performance, while the effects of charge density and chain distribution varied depending on the dosage.
Article
Green & Sustainable Science & Technology
Bingzhi Liu, Zizeng Wang, Li Feng, Kittisak Jermsittiparsert
Summary: The study suggests that hybrid power systems can better utilize various renewable energy sources and improve system stability with the assistance of energy storage systems. By combining diesel generators and water reservoirs, the power demand can be effectively met when solar energy is insufficient, and adjusting the use of diesel generators through optimization techniques can lead to cost savings.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Ceramics
Zhenzhen Jiang, Li Feng, Junren Zhu
Summary: This paper reports the successful synthesis of CFO/Rh composite photocatalyst through in situ photodeposition, which showed improved efficiency in decomposing Malachite Green with higher specific surface area and enhanced charge separation. The crucial reactive species during the photocatalytic degradation of MG with CFO/Rh were identified as hydroxyl radicals and superoxide radicals, providing a useful approach to enhance the photocatalytic activity of semiconductors for degrading organic dyes.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Yuning Chen, Xuhao Li, Wang Zizeng, Li Feng, Jiehong Xie, Zeluan Lin, Zhihong Xu, Bingzhi Liu, Xiang Li, Huaili Zheng
Summary: The research successfully synthesized a new type of template copolymer with a distinct cationic microblock structure, which can effectively improve the flocculation structure and enhance treatment efficiency, leading to an improved sludge dewatering performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Wei Wei, Dong Zhou, Li Feng, Xuhao Li, Lijun Hu, Huaili Zheng, Yinli Wang
Summary: The advanced oxidation technology of using ultrasound enhanced zero-valent iron/potassium persulfate can effectively remove carbamazepine antibiotic organic contamination wastewater, with ultrasound playing a key role in improving the efficiency of the reaction and expanding the pH range for CBZ degradation. The mechanism involves the generation of active radicals such as SO4·−, (OH)·, and O2(·−) which contribute to the removal of CBZ, with SO4·− playing a prominent role. The degradation process is promoted by the dissolution of iron powder, production of Fe2+ ions, and activation of S2O82- to produce sufficient SO4·− radicals, leading to the efficient degradation of CBZ.
Article
Chemistry, Physical
Yongzhi Liu, Huaili Zheng, Yawen Han, Youwei Wu, Yu Wang, Yongde Liu, Li Feng
Summary: Magnetic chitosan-based amphiphilic adsorbent PFSC synthesized by UV-light irradiation method showed superior adsorption efficiency and pH resistance for removing anionic dyes. The main adsorption mechanisms were identified as electrostatic adsorption and 11-11 stacking interactions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Xuhao Li, Minghao Zuo, Jiahao Wu, Li Feng, Zizeng Wang, Bingzhi Liu
Summary: The CuFe2O4/CdSe heterostructure photocatalyst shows improved utilization of visible light, enhanced hydrogen production from water splitting, and more efficient charge separation, mainly due to the higher specific surface area and better charge transfer efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Bingzhi Liu, Zizeng Wang, Li Feng
Summary: The catalytic liquefaction of Spirulina microalgae using Co/CNT and Ni/CNT catalysts can significantly improve bio-oil quality and yield, while reducing bio-char yield; higher percentages of hydrocarbons can be obtained under ethanol solvent.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Chemistry, Multidisciplinary
Yuning Chen, Li Feng, Seyed Mohsen Sadeghzadeh
