Article
Energy & Fuels
Jun Qin, Yinghao Ruan, Ludong Yi, Haosheng Sun, Qianqian Qi, Li Zhao, Ying Xiong, Jun Wang, Dawei Fang
Summary: This study investigated the degradation of tetracycline using hydrodynamic cavitation (HC) technology. The results showed that specific Venturi tube parameters and operation conditions had a significant influence on the degradation efficiency. The addition of certain inorganic anions and Fenton's reagent further enhanced the degradation process. The study suggests that HC technology assisted by Fenton's reagent could be a promising approach for large-scale treatment of antibiotic wastewater.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Chandrodai Agarkoti, Parag R. Gogate, Aniruddha B. Pandit
Summary: In this study, the reduction of chemical oxygen demand (COD) in CETP effluent was investigated using acoustic or hydrodynamic cavitation coupled with ozone and various catalysts. The highest COD reduction was achieved using AC/O-3/MgO and HC/O-3/MgO approaches, with reductions of 88.66% and 88.36% respectively. OH radical scavengers and ozone scavenger were found to have an impact on the efficacy of the different approaches. The experimental data was fitted to a Generalized Kinetic Model (GKM) and cost estimations were performed for the various methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Lam Thanh Phan, Heidemarie Schaar, Ernis Saracevic, Jorg Krampe, Norbert Kreuzinger
Summary: The study found that ozonation led to a dose-dependent increase in biological activity, particularly for substances that are recalcitrant to biodegradation. Additionally, ozonation enhanced the degradation potential of COD and BDOC, while also partially mineralizing organic compounds. These results suggest that a combination of ozonation and biological post-treatment can contribute to sustainable water resource management by reducing biodegradable organic carbon emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Sangbin Lee, Hassan Anwer, Jae Woo Park
Summary: Nanobubble and ultrasonic cavitation were used to enhance oxidation reactions of ozonation, with nanobubbles increasing ozone dissolution by a factor of 16 and ultrasonic cavitation generating hydrogen peroxide. The process achieved significant improvements in both the loss of emitted ozone and radical recombination, demonstrated by the decomposition of rhodamine B. The combination of nanobubble and ultrasonic cavitation sustained oxidizing power by continuous dissolution of ozone and successive radical generation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Aleksandra Szaja, Agnieszka Montusiewicz, Magdalena Lebiocka
Summary: This study evaluated the effectiveness of hydrodynamic cavitation (HC) as a pre-treatment method for organic wastes. The results showed that HC could solubilize and decompose complex organic matter, and improve the biodegradability index and soluble chemical oxygen demand content. However, suitable operational conditions need to be chosen individually for each waste type.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Idil Arslan-Alaton, Olga Koba-Ucun, Shima Farasat
Summary: Simulated reactive dyebath effluent containing Reactive Red 21 can be decolorized successfully through ozone and peroxide/ozone treatment processes. Persulfate, peracetic acid, and percarbonate were tested as alternative oxidants to hydrogen peroxide. Persulfate and peracetic acid showed better color and organic carbon removal rates, while percarbonate had a scavenging effect. PAA-assisted ozonation exhibited the highest color removal performance at an optimum PAA concentration of 1.5 mM.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
N. J. Lakshmi, C. Agarkoti, Parag R. Gogate, Aniruddha B. Pandit
Summary: This study investigates the effectiveness of hybrid treatment techniques involving cavitation combined with AOPs in treating industrial effluent containing recalcitrant pharmaceutical pollutants. The study found that the AC/Fe(II)/H2O2 system achieved a high COD reduction rate under specific operating conditions. The HC/Fe(II)/H2O2 system also achieved a high COD reduction rate under specific conditions. Additionally, the study compared the kinetic rate constants and treatment costs of different methods.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Pengyun Liu, Zhilin Wu, Francesca Tiziana Cannizzo, Stefano Mantegna, Giancarlo Cravotto
Summary: This study investigates the use of ozonation in a vortex reactor for removing antibiotic residues from milk. It finds that stronger vortexing and hydrodynamic cavitation can enhance the efficiency of antibiotic removal. The degradation kinetics and pathways of antibiotics are affected by various factors, such as initial concentration, ozone concentration, reaction temperature, and milk components.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Jin Chu, Philip Metcalfe, Holly Linford, Siying Zhao, Francisco M. Goycoolea, Shiguo Chen, Xingqian Ye, Melvin Holmes, Caroline Orfila
Summary: Short-term hydrodynamic and acoustic cavitation treatments can improve the dispersibility and functionality of citrus pectin without altering its composition, showing promise for industrial applications.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Chemistry, Multidisciplinary
Bing Wang, Yunxian Liu, Huan Zhang, Wen Shi, Mingyang Xiong, Chunyang Gao, Mingcan Cui
Summary: This review discusses the necessity, advantages, and mechanism of combining hydrodynamic cavitation with ozonation (HC/O-3) for wastewater treatment. Previous works with HC/O-3 technology are summarized to demonstrate the positive synergies in different wastewater treatments. Recommendations for parameter selection are provided by analyzing the impact of important operating parameters on process performance. Energy efficiency and cost comparisons indicate that the HC/O-3 process is more cost-effective than the individual process. Overall, the HC/O-3 process with optimized conditions can significantly increase the degradation rate of refractory pollutants.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Environmental Sciences
Chandrodai Agarkoti, Parag R. Gogate, Aniruddha B. Pandit
Summary: This study explored the treatment of commercial effluent from Common Effluent Treatment Plants using acoustic cavitation and hydrodynamic cavitation based hybrid AOPs. The results showed that hydrodynamic cavitation had better COD reduction efficiency and was more economical. Kinetic studies suggested that GKM provided the best fitting for all experiments, while BMGKM was most suitable for Fenton based reactions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
A. Lanfranchi, G. Tassinato, F. Valentino, G. A. Martinez, E. Jones, C. Gioia, L. Bertin, C. Cavinato
Summary: This paper explores the effect of hydrodynamic cavitation (HC) pre-treatment on the acidogenic co-fermentation process of sewage sludge and vegetable waste, finding that a 50-minute cavitation treatment resulted in the highest increase in sCOD and VFAs. The organic acid-rich broth generated was then evaluated as a substrate for polyhydroxybutyrate storage, yielding a biopolymer with similar characteristics to commercial equivalents. The valorization of the solid-rich fraction of the fermented effluent was also assessed.
Article
Engineering, Chemical
Yina Qiao, Chaoqi Wang, Yu Jiang, Xingqiao Feng, Kun Wang, Jian Xiong, Mengye Jia, Riya Jin
Summary: The leachate generated from a landfill can be harmful to the environment and human health. This study used hydrodynamic cavitation as a pretreatment method for landfill leachate, and found that it can effectively reduce the chemical oxygen demand and improve the biodegradability of the leachate.
Article
Engineering, Chemical
Kuldeep Roy, Vijayanand S. Moholkar
Summary: The study investigated the degradation of carbamazepine (CBZ) using a hybrid advanced oxidation system of hydrodynamic cavitation (HC) assisted UV/persulfate with composite ZnO/ZnFe2O4 particles. The system achieved 98.13% degradation of CBZ under optimal conditions. Analysis using density functional theory (DFT) revealed that single electron transfer (SET) between CBZ and SO4·- was the primary reaction pathway for degradation initiation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Xiaofeng Zhang, Zihao Ou, Jinxin Xiang
Summary: The study demonstrates that preparing magnetic activated carbons with Fenton's reagent can significantly improve the physicochemical properties and adsorption performance of the materials, enhancing the magnetic properties of carbon/iron composites. This method not only can remove organic pollutants effectively, but also can recycle waste resin efficiently, showing high economic benefits and practicality.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Agricultural Engineering
Swapnil Sukhadeo Bargole, Prakash Kumar Singh, Suja George, Virendra Kumar Saharan
Summary: This study presents the valorization of waste cooking oil and marble waste powder in the synthesis of biodiesel using ultrasonication. The optimized conditions achieved high yields of biodiesel synthesis using various catalysts, demonstrating that ultrasonication reduced the energy requirement in biodiesel production compared to conventional methods.
BIOMASS & BIOENERGY
(2021)
Article
Materials Science, Multidisciplinary
Kamalnayan Singh, Divya P. Barai, Shivani S. Chawhan, Bharat A. Bhanvase, Virendra Kumar Saharan
Summary: In this study, the formation of rGO-Al2O3 nanocomposite was confirmed using various characterization techniques, and the thermal conductivity of the nanofluid was found to increase with temperature and concentration. The nanofluids exhibited non-Newtonian behavior, and showed promising results for convective heat transfer studies.
MATERIALS TODAY COMMUNICATIONS
(2021)
Review
Environmental Sciences
Arshia Khan, Rohidas Gangaram Bhoi, Virendra Kumar Saharan, Suja George
Summary: This article reviews the utilization of calcium-based catalysts in wastewater treatment, focusing on their application for the removal/degradation of dye water pollutants. The effects of calcium as a base on the removal efficiency of dopants are summarized. The article also surveys the various photocatalysts developed and the different synthesis methods involved. The use of marble powder as a green sustainable approach is presented, and the aim is to determine the effect of introducing calcium as a base for different catalysts and adsorbents.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Engineering, Chemical
Jitendra Carpenter, Dipak V. Pinjari, Virendra Kumar Saharan, Aniruddha B. Pandit
Summary: Hydrodynamic cavitation has emerged as a promising and effective technique for preparing high-quality oil-in-water nanoemulsion. However, previous research has lacked consideration of the physical and chemical stability in defining the quality of the emulsions. Therefore, it is necessary to investigate the impact of various geometrical and operating parameters on the stability of the prepared emulsions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Yogesh A. Bhadange, Virendra Kumar Saharan, Shirish H. Sonawane, Grzegorz Boczkaj
Summary: This study optimized the extraction of catechin from the bark of the Syzygium cumini tree using different techniques such as stirred reactor, soxhlet, ultrasonic bath, and ultrasonic horn. The results showed that ultrasonic horn technique had the highest extraction yield, fastest extraction rate, and lowest energy consumption.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Chemistry, Multidisciplinary
Yogesh A. Bhadange, Virendra Kumar Saharan
Summary: This study compares the extraction of D-galacturonic acid from basil seeds using different extraction techniques. The results show that ultrasonic extraction has a higher yield and shorter extraction time compared to stirred reactor and soxhlet extraction. The process effectiveness of ultrasonic extraction is significantly better than the other two methods. The study also investigates the kinetics of the extraction process and characterizes the extracted components.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Environmental Sciences
Dhiraj Mehta, Virendra Kumar Saharan, Suja George
Summary: Waste marble powder is used to synthesize hydroxyapatite for defluoridation of drinking water. The synthesized marble hydroxyapatite is formed into pellets and tested in continuous column defluoridation studies. The optimized column parameters are determined, and modeling studies show that MA-Hap is a promising adsorbent for drinking water treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Arshia Khan, Rohidas Bhoi, Virendra Kumar Saharan, Suja George
Summary: This study presents the synthesis of a titanium-doped hydroxyapatite (HAP) photocatalyst for the degradation of Congo Red dye (CR). The optimized photocatalyst successfully degraded CR in aqueous solution, achieving a degradation rate of 92.86% under specific conditions. The results suggest that the titanium-doped HAP photocatalyst has potential applications in environmentally friendly wastewater treatment.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Suja George, Rohidas Bhoi, Virendra Kumar Saharan
Summary: This study introduces different grades of hydroxyapatite (Hap) derived from marble powder, a waste product of the marble processing industry, as effective adsorbents for fluoride removal in water. The synthesis method, product characteristics, fluoride removal capacity, and synthesis cost of these Hap products were compared to pure Hap. Ultrasonication was incorporated into the conventional gel precipitation technique to produce high-quality nano Hap with higher fluoride adsorption capacity, shorter synthesis time, and higher yield. Energy efficiency and synthesis cost comparison studies confirmed the potential application of MA-Hap as a adsorbent for drinking water.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Surabhi Singh, Prathwiraj Meena, Virendra Kumar Saharan, Rohidas Bhoi, Suja George
Summary: This study investigated a hybrid pre-treatment method combining homogenization and ultrasonication with green solvents to enhance lipid extraction from microalgae. The results showed that the hybrid method significantly increased lipid extraction efficiency and obtained a value-added product containing plasticizers.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Engineering, Chemical
Mohit Nigam, Pradeep Kumar, Sunil Rajoriya, Virendra Kumar Saharan, Shraddha Rani Singh
Summary: The aim of the research was to treat tannery wastewater using catalytic thermal treatment process in a batch system. Copper sulfate was found to be a more effective catalyst compared to copper oxide for the removal of COD and color. The optimized conditions resulted in maximum COD removal of 71.36% and color removal of 77.56%, demonstrating the potential of thermolysis process for industrial wastewater treatment.
DESALINATION AND WATER TREATMENT
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Arshia Khan, Prakash Kumar Singh, Virendra Kumar Saharan, Suja George
Summary: In this study, waste marble powder was used to prepare calcium-based photocatalysts. Various calcium titanate materials were successfully synthesized using solid state method with variations in the synthesis process. The photocatalytic efficiency of the synthesized photocatalysts was evaluated based on the degradation of congo red dye, showing excellent performance with a maximum degradation efficiency of 95.5% achieved using CT 900 650 photocatalyst.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Engineering, Environmental
Shivendu Saxena, Virendra Kumar Saharan, Suja George
Summary: This study found that hybrid Ultrasonication (US) techniques combined with oxidizing agents were more effective for treating tannery waste effluent, as compared to US treatment alone. Removing suspended matter from the effluent through coagulation prior to hybrid US treatment increased COD removal. The hybrid US processes exhibited good synergistic effects, with US + Fenton being the most effective combination for treating the waste effluent.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
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)