Algerian Journal of Chemical Engineering AJCE

Algerian Journal of Chemical Engineering AJCE AJCE is an international, peer-reviewed journal devoted to

Algerian Journal of Chemical Engineering (AJCE) is published by Department of Process Engineering and Petrochemistry, Faculty of Technology, University of Echahid Hamma Lakhdar, El-Oued, Algeria.

20/03/2024

Phytochemical, Proximate and Antimicrobial Screening in the aerial part plant of Drynaria sparsisora
Ogwuche Christiana Ene
Odogwu Chibuzor Blessing
Federal University of Petroleum Resources1
Keywords: Drynaira Sparsisora-Phytochemical-Antimicrobial-Proximate-Pathogens
Abstract
After being gathered from the Uviwe local government area in Delta state, the leaves of Drynaria sparsisora were mixed, air-dried, and then extracted using a soxhlet apparatus with n-hexane and methanol as the solvents. Using the standard procedures of the Association of Official Analytical Chemists (A.O.A.C.), the phytochemical and proximate analysis was performed on the extract. Results of the phytochemical screening carried out on the combined extracts (n-hexane and methanol) showed the presence of alkaloids, proteins, sugars, glycosides, tannins, phenolic compounds, flavonoids, and steroids. To ascertain the moisture content, carbon, lipid content, ash, fat, and nitrogen, proximate analysis was used. According to the results, there was 1.2% fat and 50.4% carbon in the sample. The following were obtained for the others: lipid content (34%), ash content (6.5%), and nitrogen (6.69%). Mueller Hinton agar medium was used to test the antimicrobial activities of both extracts against a variety of clinical pathogenic microorganisms, including Helico bacterpylori, Campylo bacterjejuni, Escherichia coli, Salmonel platypi, Proteus mirabilis, Candida albicans, Candida krusei, and Candida tropicalis. The zones of inhibition were determined, and at various concentrations, the n-hexane and methanol extract demonstrated resistance to Escherichia coli, vancomycin-resistant enterococci, methicillin-resistant Staph aureus, candida krusei, and candida tropicalis. Methanol and n-hexane extracts have MICs of 25 µg/m and 50 µg/m, respectively. For the extracts of methanol and n-hexane, the MBC/MFC are 50 µg/m and 25 µg/m, respectively.
https://www.journal.acse.science/index.php/ajce/article/view/169

20/03/2024

Template
Algerian Journal of Chemical Engineering

06/01/2024

A A short review of Nanomaterials: Synthesis methods, properties, and applications
Review
Authors
Ali Alnazza Alhamad
University of Aleppo
Soumeia Zeghoud
University of El Oued
Ilham Ben Amor
University of El Oued
Abdelmalek Zaater
University of El Oued
Asma Ben Amor
University of El Oued
Abdelatif Aouadif
KASDI Merbah-Ouargla University
Amira Hemmami
University of El Oued
Emmanuel Chile Nleonui
Federal Polytechnic Nekede, P.M.B. 1036, Owerri, Imo State, Nigeria
Abstract
Due to their significant features, engineered nanomaterials have received much attention recently, sparking significant technical and monetary growth across various industrial sectors. Moreover, it is anticipated that nanomaterials will support a variety of industries, including microelectronics, materials, textiles, energy, healthcare, and cosmetics. Nanotechnology applications will lead to the development of lighter, stronger, and cleaner materials, intelligent medications, and diagnostics in the medical field. The relative hazards of various nanomaterials to humans and the environment are still up for debate, therefore, it's essential to be aware of the concerns related to possible toxicity and exposure route. Here, we go through several elements of creating, characterizing, and using nanoparticles.
http://www.journal.acse.science/index.php/ajce/article/view/132

Comparing the Correctness of Different Relations for Approximation of Retention Times in Reversed Phase HPLC with Methan...
06/01/2024

Comparing the Correctness of Different Relations for Approximation of Retention Times in Reversed Phase HPLC with Methanol–Water Eluents
Authors
Abdennour Derouiche
Postgraduate student
Igor G. Zenkevich
St Petersburg University
Abstract
The correctness of different relations for approximating the retention times of selected analytes of different chemical origin in reversed phase high performance liquid chromatography (isocratic conditions, methanol–water eluents) is compared. Five equations most often used in analytical practice were considered: hyperbolic (Scott-Kuchera model), logarithmic (Soczewinski–Wachtmeister and Snyder–Soczewinski models), second degree polynomial, and recently proposed recurrent relations, tR(C + ΔC) = atR(C) + b, where tR is net retention time, and ΔC is the constant increment of the concentration of an organic modifier in an eluent. Two criteria for comparing the approximation quality were used. The first of them (known previously) is the maximal value of the correlation coefficient for the dependence tR(C); the second one is newly proposed. It implies hypothetical exclusion of the maximal and the minimal tR values from the total data set, followed by precalculation of these values using the remaining data and evaluation of the differences (tR – tR,calc) for both of them.

The results obtained show that just recurrent relations provide the maximal precision of approximations compared to all the previously known approaches. In addition, the important advantage of recurrences is their applicability to net retention times without converting them to adjusted retention times.

Comparing the Correctness of Different Relations for Approximation of Retention Times in Reversed Phase HPLC with Methanol–Water Eluents Authors Abdennour Derouiche Postgraduate student Igor G. Zenkevich St Petersburg University Abstract The correctness of different relations for approximating the...

Recovery of Cationic Dyes Bearing Wastewater Using Shea Butter Leaves: Kinetic Adsorption, Desorption and Reusability St...
06/01/2024

Recovery of Cationic Dyes Bearing Wastewater Using Shea Butter Leaves: Kinetic Adsorption, Desorption and Reusability Studies
Abdullahi Shehu
Federal college of agriculture produce technology,kano
Muhammad Bashir Ibrahim
Bayero University Kano
Bashir Ayuba
Federal College of Agricultural Produce Technology
Keywords: Adsorption, Desorption, reusability, recovery, vitellaria paradoxa
Abstract
The present study explains the preparation and application of Vitellaria paradoxa Activated Carbon (VPAC) as a new low-cost adsorbent in the removal of methylene blue and rhodamine B dye from its aqueous solution. SEM showed surface morphology, EDX disclosed elemental composition while pHpzc determines the pH at which the adsorbent surface has net electrical neutrality. The effects of operating parameters such as contact time, adsorbent dose, initial dye concentration, pH, temperature and competition were investigated for the removal of methylene blue and rhodamine B dyes using VPAC. VPAC was maximum at pH of 6 contact time of 60min and pH of 7 contact of time 80min respectively. The adsorption kinetic results showed that the pseudo-second order model was more suitable to explain the adsorption of methylene blue and rhodamine Bdye onto VPAC, because the calculated and experimental are in agreement. In VPAC, Qexp = 49.092mg/g, Qcal = 49.505mg/g and R2= 0.999 for methylene blue while Qexp = 49.508mg/g, Qcal = 49.011mg/g and R= 0.999 for rhodamine B. The adsorption mechanism results showed that the adsorption process was controlled by both the internal and external diffusion of methylene blue and rhodamine B dye molecules. Desorption studies for reusability revealed that HCl offered the best recovery.

Recovery of Cationic Dyes Bearing Wastewater Using Shea Butter Leaves: Kinetic Adsorption, Desorption and Reusability Studies. Authors Abdullahi Shehu Federal college of agriculture produce technology,kano Muhammad Bashir Ibrahim Bayero University Kano Bashir Ayuba Federal College of Agricultural Pr...

***********Algerian Journal of Chemical Engineering*********** ISSN / eISSN:2773-3068Publisher:Department of Process Eng...
15/09/2023

***********Algerian Journal of Chemical Engineering***********
ISSN / eISSN:2773-3068
Publisher:Department of Process Engineering and Petrochemical, Faculty of Technology, University of El Oued, Algeria
تم فهرسة المجلة الجزائرية للهندسة الكيميائية في قاعدة البيانات المرموقة ASCI Database. تقدم ASCI Database المعلومات الموثوقة والأساسية لقرائها عبر فهرسة المجلات العلمية عالية الجودة لتلبية احتياجات ومطالب المجتمع العلمي العالمي.
الرابط:
https://ascidatabase.com/publisher.php?v=Algerian+Journal+of+chemical+Engineering

Journée Scientifique et Technique de l’Hydraulique et Génie Civil 0211-2023Contacts :Adresse :Pôle Universitaire ; Bouir...
25/06/2023

Journée Scientifique et Technique de l’Hydraulique et Génie Civil
0211-2023
Contacts :
Adresse :
Pôle Universitaire ; Bouira 010000 ; Algérie.
Mob :
0668252654 ; 0770299188 ; 0772340908 ;
0793161535
E-mail : [email protected]
Site Web : https://www.univ-bouira.dz

تم إدراج و ارشفة المجلة الجزائرية للهندسة الكيميائية ضمن القاعدة الإفريقية للمجلات آجول AJOLThe Algerian Journal of Chem...
22/03/2023

تم إدراج و ارشفة المجلة الجزائرية للهندسة الكيميائية ضمن القاعدة الإفريقية للمجلات آجول AJOL
The Algerian Journal of Chemical Engineering is now live on AJOL here: https://www.ajol.info/index.php/aljchemeng
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Algerian Journal of Chemical Engineering (AJCE) is an international, peer-reviewed journal devoted to pure and applied Chemical Engineering. AJCE publishes Original Research Articles, Short Communications, Review Articles, E-book, and Chapter Book in all aspects of Chemical Engineering and related f...

Strength and Thermal Analysis in Sulfate Attack of Ordinary and Pozzolanic Rice Husk Ash Concrete     Catherine Mayowa I...
30/12/2022

Strength and Thermal Analysis in Sulfate Attack of Ordinary and Pozzolanic Rice Husk Ash Concrete

Catherine Mayowa Ikumapayi Department of Civil Engineering, Federal University of Technology, P.M.B 704, Akure, Nigeria
Ponmile Ayanwale Taiwo Department of Civil Engineering, Federal University of Technology, P.M.B 704, Akure, Nigeria

Abstract

Durability is one of the unanswered questions limiting the wide acceptability of pozzolanic cement in the world today despite its numerous advantages. Resistance to sulfate attack is one of the durability properties of concrete. Ordinary and 10% Rice husk ash (RHA) pozzolanic cement concrete, with a mix ratio of 1:2:4 were produced. These specimens were subjected to both magnesium and sulfate attacks at 7, 28, 56 and 90 days hydration and their thermal analysis conducted. Information such as complex thermos, thermal effects (DTA) and thermogravimetric analysis (TGA) were collected in Nitrogen gas atmosphere. Hydration behaviour and state of the specimens with and without RHA were analysed. The experiment was conducted at a temperature between 30°C to 980°C and the heating speed was 10°C/min. The results of all the thermal analyses for concrete with 10%RHA (i.e the control), Na2SO4 concrete and MgSO4 were obtained and analysed. The result of the compressive strength when Ordinary Portland cement was partially substituted for RHA was also presented. The results showed RHA to be capable of enhancing the compressive strength, sulfate resistance and thermal resistance of concrete if used in the right proportion.

Strength and Thermal Analysis in Sulfate Attack of Ordinary and Pozzolanic Rice Husk Ash Concrete Authors Catherine Mayowa Ikumapayi Department of Civil Engineering, Federal University of Technology, P.M.B 704, Akure, Nigeria Ponmile Ayanwale Taiwo Department of Civil Engineering, Federal University...

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