Article
Environmental Sciences
Yan hui Qu, Yan peng Li, Xiao tong Zou, Kai wei Xu, Ya ting Xue
Summary: A novel surface treatment method combining microwave treatment with a wetting agent was proposed to selectively separate ABS from WEEE plastics, achieving a high recovery rate and purity. The optimal conditions and the mechanism of the surface treatment were investigated, providing technological insights for the separation and recovery of waste ABS from WEEE plastics.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Engineering, Environmental
Yue Zhao, Fengrong Han, Linyi Guo, Jun Zhang, Haidong Zhang, Izzeldin Ibrahim Mohamed Abdelaziz, Kamarul Hawari Ghazali
Summary: This study presents a novel flotation process with corona modification pretreatment to facilitate the separation of PET-PVC mixtures, aiming to increase the recyclable value of PET. Through experiments and response surface methodology, control parameters of the combined process were optimized to achieve high purity PET products and efficient energy recovery.
Article
Food Science & Technology
C. M. Qian, W. T. Zhang, H. X. Luo, J. Chen
Summary: In this study, single factor combined with response surface methodology was used to optimize the process parameters of tea saponin extraction from Camellia oleifera. The best extraction conditions were determined, and the tea saponin samples were analyzed using high performance liquid chromatography.
INTERNATIONAL FOOD RESEARCH JOURNAL
(2022)
Article
Chemistry, Physical
I. M. Tucker, A. Burley, R. E. Petkova, S. L. Hosking, J. R. P. Webster, P. X. Li, K. Ma, J. Doutch, J. Penfold, R. K. Thomas
Summary: Saponins are plant-based biosurfactants with hydrophobic and hydrophilic units, obtained from a wide variety of plant species. Their unique structures present interesting challenges in understanding their optimal packing in self-assembled structures, such as micelles. The diverse molecular structures of saponins provide opportunities for optimization in mixed systems, with limited information available in current literature.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Geochemistry & Geophysics
Maria P. Arancibia-Bravo, Freddy A. Lucay, Felipe D. Sepulveda, Lorena Cortes, Luis A. Cisternas
Summary: Response surface methodology (RSM) is a useful tool for optimizing processes, but its performance in mineral flotation is often poor. This study proposes using artificial neural networks (ANNs) instead of the polynomial model of RSM and the Sobol methods instead of the ANOVA test to determine influential input factors. The results show that using ANNs significantly improves the fit compared to the polynomial model of RSM. Global Sensitivity Analysis (GSA) identifies aeration rate and P-80 size as the most influential variables in copper recovery and reveals significant interactions between aeration rate, frother concentration, and P-80 size.
Article
Engineering, Chemical
Le Trung Khoang, Hoang Thi Thu Huyen, Huynh Van Chung, Le Xuan Duy, Tran Quoc Toan, Hoang Thi Bich, Pham Thi Hong Minh, Dung Thuy Nguyen Pham, Tran Thien Hien
Summary: This study optimized the process of total saponins extraction from P. fruticosa roots using the ultrasonic-assisted extraction (UAE) method and evaluated its cytotoxic effect against cancer cell lines. The results confirmed that triterpene saponin is an important chemical component in P. fruticosa roots with significant biological activities. In addition, UAE was found to be a highly efficient method for saponins extraction.
Article
Mining & Mineral Processing
Ming Li, Yaowen Xing, Chunyun Zhu, Qinshan Liu, Zili Yang, Rui Zhang, Youfei Zhang, Yangchao Xia, Xiahui Gui
Summary: This study introduces a measurement of wetting film thinning to investigate the wettability and floatability of solid surfaces with varying roughness. The wetting property is quantified using contact angle measurement and dynamic force microbalance test, while the floatability is studied through observation of dynamic attachment between bubbles and solid surfaces and induction time measurement. The results show that the contact angle decreases and the adhesion force increases with increasing surface roughness. In contrast, hydrophobized surfaces exhibit increasing contact angles and decreasing adhesion strength.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yue Sun, Minting Zou, Changyi Li, Xiaoran Li, Taoyan Mao, Cheng Zheng
Summary: This study found that the solubilization effect of tea saponin increases with temperature and is superior to Tween 80, making it suitable for enhancing naphthalene remediation.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Bin Yang, Ya-Feng Fu, Wan-Zhong Yin, Qiu-Yue Sheng, Zhang-Lei Zhu, Xue-Ming Yin
Summary: In this study, LAEO-15 was utilized as a quartz collector for the reverse flotation of malachite from quartz. The strong adsorption of LAEO-15 on quartz, driven by hydrogen bonding and electrostatic attraction, enabled the effective separation of malachite from quartz. Compared to conventional collector dodecylamine, LAEO-15 exhibited higher selectivity and purification effectiveness for the separation of malachite from quartz.
MINERALS ENGINEERING
(2021)
Article
Engineering, Chemical
S. Parkes, P. Wang, K. P. Galvin
Summary: This study evaluates the performance of the REFLUXTM Flotation Cell using batch mechanical cell experiments and continuous steady state experiments, and analyzes the effects of operating conditions on its kinetics and washing effect.
MINERALS ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Qingfen Wang, Fei Yang, Dandan Jia, Tian Wu
Summary: This study optimized the extraction parameters of polysaccharides and polyphenols from Morinda citrifolia fruit tea using response surface methodology, with the highest yields achieved under specific temperature and time conditions. The research provides a scientific basis for obtaining these compounds from dry Morinda citrifolia fruit slice tea by brewing.
Article
Multidisciplinary Sciences
Sadaf Parvez, Idrees Ahmed Wani, F. A. Masoodi
Summary: The study optimized the extraction process of salted green tea using response surface methodology and found that brewing conditions have a significant impact on the yield, antioxidant activity, total phenols, and caffeine content of salted green tea.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Zheng-Wei Ma, Han-Qiao Liu, Qiu-Feng Lu
Summary: Porous biochar was successfully prepared from tea saponin using a one-step pyrolysis and chemical activation method, showing excellent electrochemical performance with high specific surface area and pore volume, as well as superior cycling stability and specific capacitance.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Xueqing Gao, Ding Wang, Zhaoliang Jiang, Xinde Li, Guopeng Chen
Summary: In this study, four adjuvants were selected to improve the diffusion and adhesion of bifenthrin droplets on the surface of tea leaves. The adjuvants effectively reduced the contact angle of droplets and accelerated the diffusion speed, especially on young leaves. These findings suggest that these adjuvants can enhance the efficacy of pesticide protection in tea gardens.
APPLIED SCIENCES-BASEL
(2022)
Article
Biochemistry & Molecular Biology
Jiaxing Xie, Weijuan Huang, Xuehui Wu
Summary: Plant proteins are increasingly important for foam formation as an alternative to animal proteins, but the foaming properties of pea protein isolates are unsatisfactory for consumers. This study investigates the formation and stability mechanisms of foams prepared from pea protein isolates complexed with tea saponins, a natural small molecule surfactant. The pea protein-tea saponin complex significantly improves foaming capacity and stability, possibly due to the altered aggregate state of the protein.
Article
Energy & Fuels
Muhammad Sheraz Ahmad, Chin Kui Cheng, Huei Ruey Ong, Hamidah Abdullah, Chi Shein Hong, Gek Kee Chua, Puranjan Mishra, Md Maksudur Rahman Khan
Summary: This work reported the valorization of glycerol into tartronic acid using a Pt/CNT electrocatalyst. The nanocatalyst was synthesized using a chemical reduction method with hydrazine as a reducing agent. The Pt/CNT nanoparticles exhibited high catalytic activity and selectivity.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Review
Environmental Sciences
Supriyanka Rana, Puranjan Mishra, Zularisam ab Wahid, Sveta Thakur, Deepak Pant, Lakhveer Singh
JOURNAL OF ENVIRONMENTAL SCIENCES
(2020)
Article
Biotechnology & Applied Microbiology
Rubaiyi M. Zaid, Puranjan Mishra, A. R. Siti Noredyani, Shabana Tabassum, Zularisam Ab Wahid, A. M. Mimi Sakinah
FOOD AND BIOPRODUCTS PROCESSING
(2020)
Article
Environmental Sciences
M. Amirul Islam, Ahasanul Karim, Puranjan Mishra, Jan J. Dubowski, Abu Yousuf, Sumaya Sarmin, Md Maksudur Rahman Khan
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Energy & Fuels
Puranjan Mishra, Zularisam ab Wahid, Lakhveer Singh, Rubaiyi M. Zaid, Shabana Tabassum, Mimi Sakinah, Xia Jiang
Summary: The study found that pretreatment of POME sludge with ultrasonic, microwave, and combined ultrasonic-microwave methods significantly improved H-2 production and COD removal efficiency during fermentation. Among the pretreatment methods, combined ultrasonication-microwave was the most effective for enhancing both H-2 production and COD removal efficiency.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Ahasanul Karim, M. Amirul Islam, Puranjan Mishra, Abu Jafar Md Muzahid, Abu Yousuf, Md Maksudur Rahman Khan, Che Ku Mohammad Faizal
Summary: In this study, a co-culture of yeast and bacterium was used to optimize lipid accumulation capability and simultaneous treatment of wastewater. The process parameters were optimized using design of experiments as a statistical tool, and a prediction model was proposed to predict the lipid accumulation and COD removal performance of the co-culture system.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Energy & Fuels
Puranjan Mishra, Zularisam Ab Wahid, Ahasanul Karim, Kamal Kishore Pant, Pooja Ghosh, Deepak Kumar, Lakhveer Singh
Summary: The concept of biological hydrogen production was first proposed in the early 19th century, but it did not gain much attention until the 1930s when H-2 production was reported through anaerobic digestion of cellulose using microbes present in ruminant tract. Subsequent developments in fermentative H-2 production were achieved by researchers utilizing advanced technologies in fermentative systems. This review highlights major technological aspects such as genetic engineering, nanomaterial implementations, immobilization techniques, and reactor configuration developments associated with H-2 production through the fermentative process.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Review
Chemistry, Multidisciplinary
Puranjan Mishra, Junsang Lee, Deepak Kumar, Ricardo O. Lauro, Nazua Costa, Deepak Pathania, Smita Kumar, Jinwoo Lee, Lakhveer Singh
Summary: Nanoenzyme electrocatalyst serves as a powerful tool to explore bioinspired solutions for global energy and environmental concerns. Efforts in designing novel nanoenzymes have led to the creation of innovative catalysts with high catalytic activity, low cost, high stability and versatility, contributing to environmental protection and energy technology development.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Physical
Puranjan Mishra, Putla Sudarsanam, Durga Madhab Mahapatra, Ahamad Elmekawy, Deepak Pant, Lakhveer Singh
Summary: This review discusses the significance of oxygen reduction reactions (ORRs) in bioelectrochemical systems, low-temperature fuel cells, and other electrochemical platforms. Molybdenum (Mo) is considered a potential low-cost metal-based ORR catalyst due to its multi-dimensional form and synergistic combination with other non-metals. The review provides a comprehensive analysis of the electrochemical properties of Mo-based cathodic catalysts, performance limiting factors, and their coupling with other transition metals and derivatives, highlighting future research directions and potential applications of Mo-based catalysts.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2023)
Review
Environmental Sciences
P. Jadhav, M. Nasrullah, A. W. Zularisam, P. Bhuyar, S. Krishnan, P. Mishra
Summary: Biogas production is essential for energy supply worldwide, and nanoparticles play a crucial role in enhancing microbial communication and biogas generation. The DIET process facilitates rapid electron transfer between microbes, leading to increased biogas production in anaerobic digestion systems. The use of various nanoparticles, including metallic and carbon-based ones, shows promising results in improving the efficiency of biogas production processes.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Ahasanul Karim, M. Amirul Islam, Puranjan Mishra, Abu Yousuf, Che Ku Mohammad Faizal, Md Maksudur Rahman Khan
Summary: Biohydrogen production from waste biomass using mixed culture inoculum is an active research area, but faces challenges such as low product yield and hydrogen consuming microbes. Pretreating waste biomass substrate and microbial inoculum is crucial for enhancing system performance.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Editorial Material
Biotechnology & Applied Microbiology
Durga Madhab Mahapatra, Puranjan Mishra, Sveta Thakur, Lakhveer Singh
Summary: Bioelectrochemical systems are advanced systems that generate bioenergy using exoelectrogenic microbes. The application of artificial intelligence has revolutionized these systems by improving our understanding and prediction of process parameters and microbial diversity.
TRENDS IN BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Mohit Nigam, Puranjan Mishra, Pradeep Kumar, Sunil Rajoriya, Pankaj Pathak, Shraddha Rani Singh, Smita Kumar, Lakhveer Singh
Summary: This article primarily focuses on the characteristics, treatment strategies, and regulatory frameworks for managing leather tannery wastewater (TWW). Different technologies including conventional physico-chemical, advanced approaches, thermo-catalytic, and biological treatments are discussed. It is concluded that sustainable alternatives can minimize operational and maintenance costs and promote the recirculation of treated water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Puranjan Mishra, Tao Hai, Jasni Mohamad Zain, Karuna Saini, Nallapaneni Manoj Kumar, Zularisam Ab Wahid
Summary: This study investigates the potential of biological hydrogen production through co-digestion of domestic kitchen food waste and palm oil mill effluent. The results show that hydrogen production is pH and temperature-dependent, with an increase in pH and temperature leading to higher productivity. The co-digestion of these wastes also results in a significant reduction in chemical oxygen demand (COD).
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Proceedings Paper
Biotechnology & Applied Microbiology
S. Rana, P. Mishra, S. Krishnan, Z. A. Wahid, M. Sakinah, L. Singh
5TH INTERNATIONAL CONFERENCE OF CHEMICAL ENGINEERING AND INDUSTRIAL BIOTECHNOLOGY (ICCEIB 2020)
(2020)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
