Chemical Engineering & Technology最新文献_第7页

Methylene Blue Adsorption Using Boric Acid Functionalized Activated Carbon: Kinetics, Isothermal, and Thermodynamic Studies 硼酸功能化活性炭吸附亚甲基蓝：动力学，等温和热力学研究

IF 1.8 4区工程技术

Chemical Engineering & Technology Pub Date : 2024-11-08 DOI: 10.1002/ceat.202400016

Nasim Ullah, Zarshad Ali, Urooj Kamran, Amir Sada khan, Mushtaq Ahmad Ansari, Bushra Adalat, Asma Nasrallah

{"title":"Methylene Blue Adsorption Using Boric Acid Functionalized Activated Carbon: Kinetics, Isothermal, and Thermodynamic Studies","authors":"Nasim Ullah, Zarshad Ali, Urooj Kamran, Amir Sada khan, Mushtaq Ahmad Ansari, Bushra Adalat, Asma Nasrallah","doi":"10.1002/ceat.202400016","DOIUrl":"https://doi.org/10.1002/ceat.202400016","url":null,"abstract":"In this study, the activated carbon (AC) was prepared from Sesbania sesban plant stem. Boric acid (H3BO3) was used as an activating agent. During calcination, the optimized temperature was kept upto 500 °C for 2 h. The prepared adsorbents were characterized using various techniques such as FT-IR, scanning electron microscopy, energy dispersive x-ray spectroscopy, and thermogravimetric analyzer. The prepared adsorbents were used for the removal of methylene blue (MB) dye adsorption. The adsorption experiments were conducted at different pHs such as (2–11), doses (0.0025–0.020 mg), times (30–300 min), MB initial concentrations (100–600 mg L−1), and temperatures (298–318 K), respectively. The maximum MB uptake capacity of the prepared adsorbent was 1380 mg g−1 under optimized adsorption conditions. Furthermore, the kinetic study is well described by pseudo-second order, whereas the isothermal study showed the Freundlich isotherm was better followed by the equilibrium data. Based on thermodynamic studies, the negative values of ΔG° and ΔH° revealed that the MB adsorption process is spontaneous and exothermic in nature. However, the negative ∆Sxg° value indicates that solid-solute interaction decreased randomness in the adsorption systems. The overall studies of AC showed that it was better to remove MB from an aqueous solution.","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth and Lipid Production of Ankistrodesmus Sp. IFRPD 1061 Under Mixotrophic Culture Condition: Effect of Sodium Acetate Concentration and Period Addition of Sodium Acetate in an Open Pond 混合营养培养条件下anistrodesmus Sp. IFRPD 1061的生长和产脂：露天池塘中醋酸钠浓度和醋酸钠添加周期的影响

IF 1.8 4区工程技术

Chemical Engineering & Technology Pub Date : 2024-11-08 DOI: 10.1002/ceat.202400114

Paninee Jarungkeerativimol, Imrana Niaz Sultan, Muhammad Waseem Khan, Pramuk Parakulsuksatid, Afrasiab Khan Tareen

{"title":"Growth and Lipid Production of Ankistrodesmus Sp. IFRPD 1061 Under Mixotrophic Culture Condition: Effect of Sodium Acetate Concentration and Period Addition of Sodium Acetate in an Open Pond","authors":"Paninee Jarungkeerativimol, Imrana Niaz Sultan, Muhammad Waseem Khan, Pramuk Parakulsuksatid, Afrasiab Khan Tareen","doi":"10.1002/ceat.202400114","DOIUrl":"https://doi.org/10.1002/ceat.202400114","url":null,"abstract":"Microalgae with increased amount of biomass and lipid yield are crucial for biodiesel production. Mixotrophic cultivation has prominence for increasing the micro-algal cell concentration and hence the volumetric productivity owing to independent utilization of both the photo-assimilation of CO2 and oxidative assimilation of organic carbon sources. In this study, Ankistrodesmus sp. IFRPD 1061 was examined under various concentrations of sodium acetate for concentration and productivity of biomass and lipid, lipid contents (LCs), and fatty acid profiles. The optimum condition was obtained at Day 21 with 10 mM sodium acetate, which gave 6.940 ± 0.057 g L−1 biomass concentration, 327.619 ± 2.020 mg L−1 day−1 biomass productivity, 2.795 ± 0.191 g L−1 lipid concentration, 131.955 ± 9.275 mg L−1 day−1 lipid productivity, and 40.286 % ± 3.079 % w/w LC. The optimum condition (10 mM sodium acetate) in an open pond cultivation attained maximum values at Day 14, that is, 0.575 ± 0.004 g L−1 biomass concentration, 38.161 ± 0.076 mg L−1 day−1 biomass productivity, 0.203 ± 0.002 g L−1 lipid concentration, 13.440 ± 0.197 mg L−1 day−1 lipid productivity, and 35.219 % ± 0.585 % w/w LC. The lipids recovered from mixotrophic micro-algae were primarily unsaturated fatty acids, which are appropriate to produce biodiesel. The results revealed that a 10 mM sodium acetate concentration can enhance lipid accumulation within algal cells.","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-Silico Optimization of a Bi-Enzymatic Reactor for Mannitol Production Using Pareto-Optimal Fronts 基于帕累托最优前沿的甘露醇双酶反应器的计算机优化研究

IF 1.8 4区工程技术

Chemical Engineering & Technology Pub Date : 2024-11-06 DOI: 10.1002/ceat.202300555

Cristiana Luminita Gijiu, Gheorghe Maria, Laura Renea

{"title":"In-Silico Optimization of a Bi-Enzymatic Reactor for Mannitol Production Using Pareto-Optimal Fronts","authors":"Cristiana Luminita Gijiu, Gheorghe Maria, Laura Renea","doi":"10.1002/ceat.202300555","DOIUrl":"https://doi.org/10.1002/ceat.202300555","url":null,"abstract":"For multi-enzymatic cases, the determination of the batch reactor (BR) optimal operating policy often translates into a difficult multi-objective problem. Exemplification is made here for the enzymatic reduction of D-fructose to mannitol by using the mannitol dehydrogenase (MDH) enzyme and nicotinamide adenine dinucleotide (NADH) cofactor, with in situ regeneration of NADH at the expense of formate degradation by using the FDH enzyme. This paper presents an original rule to in silico generate the problem solution, by using the Pareto optimal-front approach with accounting for pairs of competing economic goals and constraints. The optimal BR is then compared to an optimal fed-BR (FBR), or a series of equal BRs (SeqBR). As proved, the Pareto-optimal front alternative is an advantageous option, compared to the classical nonlinear programming technique, being simple to apply, by considering pairs of opposite objective functions. In the present case study, the Pareto-optimal BR operating mode predicts an M-productivity 1.5x better than those of an optimized FBR, with comparable enzymes consumption. The MDH consumption of this Pareto-optimal BR is 10x smaller than an optimal SeqBR, and 130x smaller vs. heuristic (sub)optimal BR.","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Loess-Clay Based Eco-Friendly Geopolymer for Efficient Removal of Pollutants in Water 制备用于高效去除水中污染物的黄土-粘土基环保型土工聚合物

IF 1.8 4区工程技术

Chemical Engineering & Technology Pub Date : 2024-10-29 DOI: 10.1002/ceat.202300578

Fangrong Li, Yongyi Yang, Yan Liu, Juanmei Yang, Guohui Fan

{"title":"Preparation of Loess-Clay Based Eco-Friendly Geopolymer for Efficient Removal of Pollutants in Water","authors":"Fangrong Li, Yongyi Yang, Yan Liu, Juanmei Yang, Guohui Fan","doi":"10.1002/ceat.202300578","DOIUrl":"https://doi.org/10.1002/ceat.202300578","url":null,"abstract":"Heavy metals and dyes cause serious harm for water environment, geopolymer materials with the large pores and specific surface area, and easy modification of pore surface have received extensive attention in wastewater treatment. Herein, using loess-clay (LC) as natural mineral materials, we developed an eco-friendly geopolymer of loess-clay (GpLC) with excellent adsorption properties and promotion plant growth was prepared by alkali excitement. Its morphology and structure were exhibited by scanning electron microscopy, Fourier transform infrared spectroscopy, XRD, and Brunauer–Emmett–Teller. Moreover, its adsorption property for removing metal ions and different dyes was measured, and the adsorption kinetics and thermodynamics were investigated. GpLC presented excellent adsorption ability for Pb2+, which the removal rate got to 98.7 %. It had the universality of removing organic pollutants, and the removal rate reached to 98.0 %. It was dominated chemisorption and single-layer adsorption, which GpLC conformed to quasi-second-order adsorption kinetics, and being more consistent with Langmuir isothermal model. Furthermore, it was found that GpLC could promote growth of crops as it contain P and K element with essential element of plants. In summary, it provides insights and strategy for developing a kind of eco-friendly functional materials with strong adsorption capacity and promoting plant growth, and it is an effective method for reusing loess resources.","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"47 12","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Macronutrients on Recombinant mCherry Production by Microalga 宏量营养素对微藻生产重组 mCherry 的影响

IF 1.8 4区工程技术

Chemical Engineering & Technology Pub Date : 2024-10-24 DOI: 10.1002/ceat.202300143

Dr. Cesar Andres Diaz Arias, Prof. Dr. Marcelo Chuei Matsudo, Prof. Dr. Livia Seno Ferreira-Camargo, Dr. João Vitor Dutra Molino, Prof. Dr. Stephen Patrick Mayfield, Prof. Dr. João Carlos Monteiro de Carvalho

{"title":"Effect of Macronutrients on Recombinant mCherry Production by Microalga","authors":"Dr. Cesar Andres Diaz Arias, Prof. Dr. Marcelo Chuei Matsudo, Prof. Dr. Livia Seno Ferreira-Camargo, Dr. João Vitor Dutra Molino, Prof. Dr. Stephen Patrick Mayfield, Prof. Dr. João Carlos Monteiro de Carvalho","doi":"10.1002/ceat.202300143","DOIUrl":"https://doi.org/10.1002/ceat.202300143","url":null,"abstract":"This study sought to evaluate the influence of five macronutrients (acetate, calcium, sulfate, nitrogen, and phosphate) on the cell growth and heterologous mCherry protein production by Chlamydomonas reinhardtii. In the first step, three nitrogen (N) sources were tested (NH4NO3, NaNO3, and NH4Cl), and NH4NO3 was selected as N source for the following step, due to the best results for mCherry protein production. In the second step, a central composite design 25 was employed to evaluate the effect of the five macronutrients. Although all nutrients had effect on maximum biomass concentration, only acetate, nitrogen, and phosphate showed to influence mCherry protein production. By employing the experimental design with small-scale culture in multiplates and multivariable regression, it was possible to achieve 12 % increase for recombinant protein production.","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"47 12","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Decarbonization of Metallurgy and Steelmaking Industries Using Biochar: A Review 利用生物炭实现冶金和炼钢行业的脱碳：综述

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Chemical Engineering & Technology Pub Date : 2024-10-24 DOI: 10.1002/ceat.202400217

Tumpa R. Sarker, Dilshad Z. Ethen, Sonil Nanda

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Editorial Board: Chem. Eng. Technol. 11/2024 编辑委员会：Chem.Eng.Technol.11/2024

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Chemical Engineering & Technology Pub Date : 2024-10-23 DOI: 10.1002/ceat.202471102

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Overview Contents: Chem. Eng. Technol. 11/2024 概述内容：Chem.Eng.Technol.11/2024

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Chemical Engineering & Technology Pub Date : 2024-10-23 DOI: 10.1002/ceat.202471103

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Cover Picture: Chem. Eng. Technol. 11/2024 封面图片：封面图片：Chem.Eng.Technol.11/2024

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Chemical Engineering & Technology Pub Date : 2024-10-23 DOI: 10.1002/ceat.202471101

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Sustainability and Technoeconomic Assessment of Polygeneration Process for LNG Cold Recovery 液化天然气冷回收多联产工艺的可持续性和技术经济评估

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Chemical Engineering & Technology Pub Date : 2024-10-22 DOI: 10.1002/ceat.202400174

Hrithika Ganta, Om Rajesh Gunjal, Satakshi Agarwal, Prof. Arnab Dutta

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