Article
Environmental Sciences
Jerin Jose, Ligy Philip
Summary: The continuous flow plasma reactor effectively degrades toxic compounds in pharmaceutical wastewater without pre-treatment, with high removal efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Barbara Zon Nascimento, Eduardo Perini Muniz, Aloisio Jose Bueno Cotta, Flavio Duarte Couto Oliveira, Paulo Sergio da Silva Porto
Summary: Electrocoagulation with electrical polarity inversion was used to treat oil in water emulsions. The effects of time factors on the treatment process were investigated, and a correlation was found between electrode degradation, oil removal, and electric power consumption. Surface response analysis indicated that increasing the number of inversion cycles reduces electrode degradation. The treatment significantly reduced the chemical oxygen demand of the effluent. There is an inverse statistical correlation between aluminum in the treated effluent and oil removal, indicating the possibility of achieving higher oil removal with less environmental impact.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Lauri Poyry, Petri Ukkonen, Michela Mulas, Anna Mikola
Summary: Energy costs in the wastewater industry are rising, and optimizing the aeration process can offer significant savings. Dynamic models can improve energy efficiency and process performance, with promising results showing the strong influence of control valve positioning on the system.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Bingyan Dong, Peixiang Wang, Zhendong Li, Wenjuan Tu, Yanwen Tan
Summary: A DBD reactor was developed for efficient degradation of hazardous BHA in industrial wastewater. Experimental results showed that the reactor achieved a significant degradation of BHA with a maximum energy yield of 0.63 mg/kWh and a maximum degradation rate of 98.7%. Analysis of the degradation mechanism and identification of intermediate compounds and pathways provided insights into the degradation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jinghua Ye, Chun Zhang, Taotao Gao, Huacheng Zhu
Summary: This study investigates the microwave-assisted dehydration process of orthophosphoric acid to prepare PPA using a continuous-flow microwave reactor. Results show that the influence of microwave power on temperature rise during dehydration is greater than that of reduced pressure, and the inlet flow rate has a significant impact on treatment capacity and product quality. Microwave heating effectively shortens dehydration time and continuous-flow treatment improves treatment capacity.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2022)
Article
Engineering, Chemical
Artur Wodolazski, Adam Smolinski
Summary: This research investigates the modelling and simulation of biomass anaerobic dark fermentation in bio-hydrogen production in a continuous plug flow reactor. The study examines the effects of various factors, such as hydraulic retention time, pH, and feed rate, on the bio-hydrogen yield and production rates. The research also highlights the importance of metabolite proportions in influencing the efficiency of bio-hydrogen production.
Article
Environmental Sciences
Sixue Wang, Xi Wu, Shiming Xu, Qiang Leng, Dongxu Jin, Ping Wang, Fujiang Dong, Debing Wu
Summary: This study investigated the effects of different anodes (Ti/IrO2-RuO2, Ti/PbO2, and Ti/Ti4O7) in a reverse electrodialysis reactor (REDR). Results showed that the use of Ti/Ti4O7 anode achieved a linear increase in COD removal rate (eta COD) with increasing output current and electrode rinse solution (ERS) flowrate, while excessive operating conditions caused a slow increase or even decrease of eta COD when using Ti/IrO2-RuO2 or Ti/PbO2 anodes. Ti/Ti4O7 also had the highest electrode system potential loss (Eele). Based on these findings, four energy efficiency parameters were defined to evaluate energy recovery and mineralization capacity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
S. Santorio, A. Val del Rio, C. L. Amorim, L. Arregui, P. M. L. Castro, A. Mosquera-Corral
Summary: The study evaluated the performance of a Continuous Flow Granular Reactor (CFGR) for treating freshwater RAS stream during two consecutive dry seasons. The configuration with a mechanical stirrer and sieve showed the best results in terms of biomass retention and nitrogen removal, achieving granulation in 55 days with high removal percentages of ammonium and nitrite.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Thermodynamics
Sara Abd Alla, Vincenzo Bianco, Luca A. Tagliafico, Federico Scarpa
Summary: This study analyzes the contribution of electric cars to urban decarbonization, focusing on a detailed description of car stock and European application. Results show that significant reduction in energy consumption and emissions can be achieved through the deployment of electric cars.
Article
Environmental Sciences
Charikleia Zampeta, Maria Mastrantonaki, Niki Katsaouni, Zacharias Frontistis, P. G. Koutsoukos, Dimitris V. Vayenas
Summary: Printing ink wastewater with high COD, color, and TSS can be effectively treated using a continuous flow electrocoagulation reactor. Lower current density and flow rate can achieve higher pollutant removal for undiluted printing ink wastewater. The process is proven to be cost-effective for treating high COD printing ink wastewater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Thermodynamics
Sixue Wang, Xi Wu, Shiming Xu, Qiang Leng, Yibo Lv
Summary: A multi-stage reverse electrodialysis reactor (REDR) series system is proposed for organic wastewater treatment and power generation. An energy evaluation method is developed to analyze the electrical energy and oxidative degradation energy conversion efficiencies of the system. Experimental results show that high current enhances the gross output power but reduces the net output power and total energy conversion efficiency. The maximal values of the net output power, total COD removal, and total energy conversion efficiency are 1.05 W, 450.98 mg center dot L^-1, and 11.41%, respectively.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Engineering, Environmental
Leynard Natividad-Marin, Philip A. Schneider
Summary: Phosphorus recovery from human waste is important for global food security and environmental impact reduction. The precipitation of struvite in a two-zone reactor, along with periodic harvesting of crystals, allows for nutrient recovery. The experiments support the production of struvite.
Article
Engineering, Environmental
Xiwen Yang, Qiao Lan, Jie Yun, Ziming Luo, Jian Liu
Summary: A upflow bubbling fluidized bed reactor based on Pickering emulsion was constructed for the treatment of 4-nitrophenol wastewater. The reactor exhibited excellent catalytic efficiency by improving the flow and transport of reactant through the Pickering emulsion.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Youcef Serhane, Nacer Belkessa, Abdelkrim Bouzaza, Dominique Wolbert, Aymen Amin Assadi
Summary: In this study, a photocatalytic process using TiO2 coated on a cellulosic support for the treatment of toxic gases has been investigated. The degradation efficiency of the photocatalytic media and the influence of input concentration and flow rates were evaluated. The results showed that mass transfer is an important factor to consider in the photocatalytic process for continuous treatment.
Article
Chemistry, Applied
Daniel Francis, A. John Blacker, Nikil Kapur, Stephen P. Marsden
Summary: The new modular photochemical continuous stirred-tank reactor (CSTR) design utilizes light-source units developed for the fReactor CSTR platform, making it suitable for both homogeneous and multiphasic reactions. By using slurries as input feeds, the system intensifies photochemical brominations, and its modular nature facilitates the integration of downstream reaction steps.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2022)
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)