Article
Engineering, Environmental
Ritesh Patidar, Vimal Chandra Srivastava
Summary: The study presents an ultrasound-photocatalysis based hybrid method for effective degradation/mineralization of the bio-recalcitrant pharmaceutical pollutant ofloxacin. The combined US/UV/H2O2/ZnO method showed significant synergy with OFLX degradation rate of 94.2% and total organic carbon removal rate of 45.1% under optimal operating conditions. The power-law kinetic model well represented the degradation kinetics with orders of reaction being 2.2 and 1.9 for different hybrid methods.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Ansaf Karim, Amritanshu Shriwastav
Summary: This study investigated the degradation of amoxicillin using a novel multifrequency reactor with photocatalytic, sonocatalytic, and sonophotocatalytic oxidation processes. Sonophotocatalytic oxidation was found to be the most efficient method, likely due to reduced bandgap of the catalyst, enhanced cavitation effect, and improved mass transfer. Pseudo-first-order kinetics and empirical kinetic models were used to predict degradation efficiency, and scavenger experiments suggested that center dot OH radicals played a major role in the degradation process. Proposed degradation mechanisms and pathways for all three treatment processes were also outlined based on identified degradation products.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Ningappa Kumara Swamy, Kikkeri Narasimha Shetty Mohana, Shivamurthy Ravindra Yashas
Summary: This study presents a novel sonophotocatalyst, graphene nanoribbon-cerium oxide heterojunction, for effective degradation of TCH in water. The heterojunction exhibited excellent degradation efficiency, reusability, and stability in sonophotocatalytic mode, providing a reliable option for TCH removal from water and wastewaters.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Oualid Hamdaoui, Slimane Merouani, Hadjer C. Benmahmoud, Meriem Ait Idir, Hamza Ferkous, Abdulaziz Alghyamah
Summary: In this study, the synergistic effect of ultrasound activation of chlorine for sonochemical treatment of hazardous organic materials was investigated. The degradation of a textile dye was significantly improved by the coupling of ultrasound and chlorine, resulting from the involvement of reactive chlorine species. The synergistic effect was influenced by the atmosphere, chlorine concentration, and pollutant concentration.
Article
Chemistry, Physical
Wanqing Fang, Yimin Lin, Rongzi Xv, Li Fu
Summary: A ternary WO3/BiVO4/NiOOH photoanode was prepared using sol-gel and photoelectric deposition processes. The photoanode showed 7 times greater photoresponse compared to bare BiVO4. After NiOOH modification, the interfacial carriers' transfer resistance of the photoanode was reduced by a quarter, and the photocurrent density retained 78% of its initial value after a 10-hour stability test.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Environmental Sciences
Yan Yu, Yanan Sun, Beixiao Ge, Jiawen Yan, Kaili Zhang, Hui Chen, Jinxing Hu, Juntao Tang, Shuang Song, Tao Zeng
Summary: A series of covalent triazine-framework/bismuth vanadate (CTF/BiVO4) heterojunction photocatalysts were prepared using the hydrothermal method, and the composite materials showed significantly higher degradation efficiencies against organic pollutants in water compared to CTF and BiVO4 catalysts alone. Physicochemical characterization results suggested that the effective construction of CTF/BiVO4 composite photocatalyst material systems and the formation of type II heterojunction structures between CTF and BiVO4 effectively promoted the separation of photogenerated carriers and increased the interface charge transfer efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Ceramics
Sitong Liu, Wenzhong Wang, Ying Cheng, Lizhen Yao, Yuhong Liu, Mingjuan Lin, Huabin Chen, Yujie Liang, Junli Fu, Lijuan Wang
Summary: This study demonstrates the construction and performance of a ternary BiVO4/FeVO4/Cu2O nanorod array (NRA) photoelectrode for enhanced photoelectrochemical (PEC) water oxidation. The nanorod array exhibits improved light absorption capability and effective charge separation, resulting in substantially boosted PEC activity.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Meghdad Pirsaheb, Negin Moradi
Summary: This review investigates the impact of sonophotocatalytic process on dye degradation in water, highlighting its benefits, limitations, and application in wastewater treatment. The study reveals that sonophotocatalysis can achieve high removal efficiency through parameter optimization, but its applicability in large-scale wastewater treatment is limited.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Biomedical
Yuxuan Li, Wenxin Li, Yian Liu, Jiahui Liu, Xinru Yuan, Jiarui Zhang, Heyun Shen
Summary: Sonodynamic therapy (SDT) is a new method for tumor treatment that utilizes sonosensitizers triggered by ultrasound. In this study, researchers designed a platinum-zinc oxide (Pt -ZnO) sonosensitizer to enhance the efficacy of SDT. Pt -ZnO possesses a narrow bandgap and dual-nanozyme activities, promoting the generation of reactive oxygen species (ROS) and enhancing SDT. Additionally, Pt -ZnO exhibits catalase-like and glutathione consumption performance, amplifying the therapeutic effect of SDT. This study demonstrates the potential of Pt -ZnO in tumor treatment.
ACTA BIOMATERIALIA
(2023)
Article
Chemistry, Physical
Qiong Liu, Quan Hu, Di Zhai, Qiwei Sun, Hang Luo, Dou Zhang
Summary: Piezoelectric materials have been shown to enhance the efficiency of photocatalytic degradation by preventing electron-hole recombination, as demonstrated in the core-shell structured catalytic agents consisting of lead-free piezoelectric ceramics BNT and photoelectric materials BVO. The BNT@BVO powders exhibited superior catalytic activity in degrading the organic dye RhB, with the macroscopic cloths fabricated for practical applications. Photoelectrochemical measurements showed the significant influence of the coupling between BNT and BVO on charge separation efficiency, leading to higher electron-hole separation efficiency and enhanced current density.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Inorganic & Nuclear
Ecem Yalcin, Meral Dukkanc
Summary: Well-designed Z-Scheme CuS@Ag/BiVO4 photocatalyst with high efficiency for the photocatalytic oxidation of BPA under visible light was fabricated. The structure of the catalyst was characterized by various techniques. The degradation of BPA using CuS@Ag/BiVO4 photocatalyst was found to be efficient and the mechanism was explained by the Z-scheme mechanism. Additionally, high frequency ultrasound was found to be more effective for the degradation of BPA than low frequency ultrasound. The catalyst showed good stability and the treated BPA solution was significantly less toxic.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Engineering, Environmental
Hui Ci, Lili Ma, Xiangmei Liu, Yanqin Liang, Yufeng Zheng, Zhaoyang Li, Shengli Zhu, Zhenduo Cui, Shuilin Wu
Summary: In this study, biocompatible nanofibers with antibacterial properties were synthesized using a one-step hydrothermal method and electrospinning. The nanofibers exhibited excellent antibacterial efficacy under visible light due to their photothermal and photocatalytic properties. These nanofibers hold promise for the fabrication of wearable antibacterial fabrics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Agha Zeeshan Ali, Yiqian Wu, Yasmina-Doekhi Bennani, Henri Spanjers, Jan Peter van der Hoek
Summary: The presence of organic micro-pollutants (OMPs) in wastewater treatment effluents poses a significant threat to water safety. A study investigated the application of BiVO4/BiOI heterojunction photoanode for acetaminophen removal in demineralized water. The heterojunction photoanode showed improved charge separation efficiency and exhibited higher removal efficiency compared to BiVO4 photoanode. These results provide valuable insights for the effective removal of acetaminophen, an OMP, from wastewater.
Article
Materials Science, Multidisciplinary
Luxia Zheng, Yang Yang, Chris R. Bowen, Lan Jiang, Zhan Shu, Yun He, Hongli Yang, Zongzhuo Xie, Taixu Lu, Feng Hu, Weiyou Yang
Summary: In this paper, a new strategy is proposed to enhance the photoelectric performance of ultraviolet (UV) photodetectors by utilizing a synergistic photo-thermal effect induced by a localized surface plasmon resonance. It is demonstrated that a W18O49 plasmonic semiconductor can improve the performance of photodetectors by increasing light absorption, enhancing the photothermal effect, and providing photo-induced hot electrons to limit carrier depletion. As a result, a UV photodetector based on W18O49/TiO2 nanofibers exhibits excellent photodetection performance with a high responsivity of up to 1.6 x 10(4) A W-1, which is five times greater than that of the pure TiO2 analogue and surpasses the previously reported TiO2-based photodetectors.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Lisheng Zhu, Ya Yang, Xudong Li, Yilin Zheng, Ziying Li, Haijun Chen, Yu Gao
Summary: This study developed nanocapsules formed by hyaluronic acid and chitosan loading with ICG and tiny gold nanoclusters (TAuNCs) for combined photothermal therapy (PTT) and sono-photodynamic therapy (SPDT). The nanocapsules demonstrated good biological stability, favorable photothermal effects, and specific delivery to cancer cells. In vitro and in vivo results showed synergistic anticancer effects with thermal ablation and ROS generation. The nanocapsules had longer ICG retention time in tumor and effective excretion of TAuNCs. This study provides a facile strategy for a safe and high-performance nanoplatform for synergistic PTT/SPDT.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Yingmu Wang, Shi Chen, Jian Zhou, Xing Fan, Lei He, Gongduan Fan
Summary: Short-term pre-exposure to silver ion (Ag+) was shown to enhance the decoloration efficiency of azo dyes by white-rot fungi under non-sterile conditions. This enhancement was attributed to the selective antimicrobial action of Ag+, which stimulated the growth and viability of the fungi while inhibiting the growth of invasive microorganisms. The findings provide new insights into the bio-nano interactions between white-rot fungi and invasive microorganisms in the presence of Ag+ and biogenic silver nanoparticles (AgNPs).
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Guocheng Zhu, Junming Chen, Shanshan Zhang, Zilong Zhao, Huihao Luo, Andrew S. Hursthouse, Peng Wan, Gongduan Fan
Summary: Black-odorous waters are a common phenomenon characterized by excessive levels of nutrients. A novel aeration-adsorption system using fiber balls was found to effectively remove ammonia nitrogen and total nitrogen from black-odorous waters. Additionally, it significantly reduced total phosphorus and phosphate concentrations, meeting China's wastewater discharge standards.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Gongduan Fan, Yiqing Song, Mingqian Xia, Yifan You, Jianyong Zou, Qi Wei
Summary: A fluidized bed photoreactor (FBPR) with an external magnetic field was designed and constructed for algae removal. The photoreactor, using magnetic photocatalyst and under optimal operating conditions, achieved effective removal of algae cells within 6 hours and maintained a 90% removal efficiency after 18 hours of continuous operation. Furthermore, the FBPR showed certain advantages even when humic acid was added to simulate actual water environment. It is characterized by high availability, low cost, and low energy consumption.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Gongduan Fan, Shulei Bao, Yang Guo, Mingqian Xia, Mingcai Lin, Shujuan Cai, Weifang Ruan, Tingting Liao, Zhongsen Yan
Summary: The research revealed that disturbance plays a significant role in salt release from sediment, while microbial activity in sediment is crucial for maintaining salt content. Disturbing sediment and establishing plant belts can be used to slow down the salinization of freshwater reservoirs.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Environmental
Gongduan Fan, Junkai Zhang, Yingmu Wang, Keshu Huang, Shumin Wang, Yixin Yao, Jing Luo
Summary: This study investigated the nitrogen conversion mechanisms in bioretention systems with different formulated soil medium. The results revealed that heterotrophic nitrification and anaerobic/aerobic denitrification were the microbial pathways for effective nitrogen removal. Bioretention systems with moderate silt content showed higher potential denitrifier abundance and better nitrogen removal performance. Soil adsorption also played a significant role in nitrogen removal, especially when activated carbon was added.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Zhongsen Yan, Zhenyu Lu, Xiaolei Chen, Yuling Jiang, Zheyan Huang, Lingshan Liu, Gongduan Fan, Haiqing Chang, Fangshu Qu, Heng Liang
Summary: In this study, the membrane fouling in landfill leachate treatment by membrane distillation was systematically investigated. It was found that the increase of feed pH enhanced the deprotonation of carboxyl groups in organic matter, contributing to the formation of organo-inorganic complexation, which might be the main cause of membrane fouling in alkaline feed condition.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Zhimeng Yang, Huarong Yu, Guangmei Wei, Linxoing Ye, Gongduan Fan, Qian Fang, Hongwei Rong, Fangshu Qu
Summary: This study compared the effects of Fe(II)/permanganate and Fe(II)/persulfate on membrane fouling caused by extracellular organic matter. The results showed that Fe(II)/persulfate was more effective in alleviating membrane fouling and also induced a change in fouling mechanisms.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Engineering, Environmental
Rongsheng Ning, Heliang Pang, Zhongsen Yan, Zhenyu Lu, Qiankun Wang, Zengling Wu, Wenxin Dai, Lingshan Liu, Zhongsheng Li, Gongduan Fan, Xianzhi Fu
Summary: The development of high efficient photocatalysts for antibiotics contamination in water remains a severe challenge. In this study, a novel step-scheme (S-scheme) photocatalytic heterojunction nanocomposites were fabricated, which showed promising performance in degrading sulfamethazine (SMZ) and provided insights into the degradation pathways and toxicity evaluation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Yingmu Wang, Shi Chen, Jian Zhou, Lei He, Xing Fan, Jun Yang, Gongduan Fan
Summary: This study investigates the performance and microbial mechanisms of electrochemically integrated vertical flow constructed wetlands (E-VFCWs) with different inoculated sources. The results show that the E-VFCW inoculated with anaerobic sludge (AN) from a swine wastewater treatment plant exhibited the shortest start-up period and the highest removal efficiencies in tertiary wastewater treatment. Microbial analysis suggests that AN group may have higher denitrification efficiency due to higher bacterial copies number and more abundant denitrifying genes. The electron transfers mediated by sulfur cycle may significantly enhance nitrate reduction in E-VFCWs, especially in AN group.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Environmental
Yingmu Wang, Shikang Xie, Jian Zhou, Gongduan Fan, Lei He, Xing Fan, Shi Chen, Jun Yang, Junge Xu, Qiang He
Summary: This study developed three electrochemically integrated horizontal flow constructed wetlands (E-HFCWs) for nutrients removal from wastewater treatment plants (WWTPs) effluent with different S/N ratios. The results showed that the removal percentages of PO43-, NO3--N and TN did not differ significantly as S/N ratios altered. The sulfur cycle played a crucial role in improving nitrogen removal stability in E-HFCWs. Furthermore, the higher S/N ratio groups allowed significantly lower N2O accumulation, which was in line with the concept of carbon neutral. Metagenome analysis demonstrated the significant role of sulfur cycle in stable autotrophic denitrification performance in E-HFCWs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Junge Xu, Ziwei Zhang, Junxian Hong, Dong Wang, Gongduan Fan, Jian Zhou, Yingmu Wang
Summary: In this study, magnetic Co-doped Fe3O4/alpha-FeOOH was fabricated and used for the degradation of trimethoprim (TMP) by activating peroxymonosulfate (PMS). The catalyst showed high efficiency in degrading TMP over a wide range of pH. LC-MS analysis identified fifteen degradation intermediates of TMP and proposed three possible degradation pathways. The recovered catalysts exhibited high stability and reusability, and the system showed high tolerance to inorganic anions and actual water bodies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Gongduan Fan, Chenjian Cai, Zhuoyi Chen, Jing Luo, Banghao Du, Shangwu Yang, Jiaxin Wu
Summary: In this study, a floating photocatalyst was synthesized to remove harmful algal blooms. The catalyst exhibited stable algae removal performance under various conditions and showed promising potential for practical application. The effects of the catalyst on algal cells were further studied, along with its possible mechanism.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Environmental Sciences
Shumin Wang, Zhenghao Guo, Xiaofan Ding, Linling Li, Zhongyou Jin, Chengcai Zhang, Shouping Liu, Yan Zhou, Gongduan Fan
Summary: The littering of nitrogen into water bodies has caused negative environmental impacts. Nitrification-denitrification is commonly used for nitrogen removal, but it requires high energy consumption and complex operational conditions. In recent years, MBS has gained attention due to its advantages in recovering nitrogen, emitting oxygen, and capturing CO2. Light has been identified as the key factor influencing MBS performance. This paper critically reviews the effects of light parameters on nitrogen removal by MBS and the nitrogen-removal mechanisms driven by artificial illumination.
Article
Engineering, Environmental
Gongduan Fan, Xin Lin, Shangwu Yang, Banghao Du, Yushan Lu, Xinyi Huang, Jiaxin Wu, Kai-Qin Xu
Summary: In this study, a sonophotocatalytic membrane reactor (SPMR) was designed for the continuous and stable degradation of ciprofloxacin (CIP). Through a series of experiments and tests, it was demonstrated that the SPMR has efficient degradation performance and membrane separation capability. The results showed that the SPMR maintained satisfactory catalytic efficiency under various water conditions and alleviated membrane fouling issues through ultrasonic technology.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)
