Brownian Motion and Coagulation Process
Djamel Ghernaout,
Abdulaziz Ibraheem Al-Ghonamy,
Ahmed Boucherit,
Badiaa Ghernaout,
Mohamed Wahib Naceur,
Noureddine Ait Messaoudene,
Mohamed Aichouni,
Ammar Abdallah Mahjoubi,
Noureddine Ali Elboughdiri
Issue:
Volume 4, Issue 5-1, September 2015
Pages:
1-15
Received:
28 March 2015
Accepted:
7 April 2015
Published:
29 April 2015
Abstract: This review discusses the Brownian motion and coagulation/flocculation (C/F) in water/wastewater treatment. In water/wastewater treatment processes, pertinent questions relating to Brownian motion and C/F are often asked. Some of these questions are: Brownian motion and molecular agitation are favourable or not to separation processes? As high salinity (seawater) decreases disorder, increasing surface water salinity would be a convenient water treatment process or not? The processes of C/F are used to remove dissolved substances and colloids from water in order to assure efficient settling.
Abstract: This review discusses the Brownian motion and coagulation/flocculation (C/F) in water/wastewater treatment. In water/wastewater treatment processes, pertinent questions relating to Brownian motion and C/F are often asked. Some of these questions are: Brownian motion and molecular agitation are favourable or not to separation processes? As high sali...
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Controlling Coagulation Process: From Zeta Potential to Streaming Potential
Djamel Ghernaout,
Abdulaziz Ibraheem Al-Ghonamy,
Mohamed Wahib Naceur,
Ahmed Boucherit,
Noureddine Ait Messaoudene,
Mohamed Aichouni,
Ammar Abdallah Mahjoubi,
Noureddine Ali Elboughdiri
Issue:
Volume 4, Issue 5-1, September 2015
Pages:
16-27
Received:
28 March 2015
Accepted:
8 April 2015
Published:
29 April 2015
Abstract: This review concerns the using of Zeta and streaming potentials in the coagulation process control. Coagulation process is usually explained by charge neutralization mechanism. The negative charge may be quantified by Zeta potential or streaming potential measures. Prior to the advent of streaming current monitors, Zeta meters were the primary instruments for measuring electrokinetic properties as related to coagulant dose. Both instruments measure the potential and indirectly the particle surface charge, but use very different methods. Even if the on-line streaming current monitor can provide coagulation process optimization when properly installed, maintained, and interpreted, jar tests experiments and Zeta meters remain indispensable.
Abstract: This review concerns the using of Zeta and streaming potentials in the coagulation process control. Coagulation process is usually explained by charge neutralization mechanism. The negative charge may be quantified by Zeta potential or streaming potential measures. Prior to the advent of streaming current monitors, Zeta meters were the primary inst...
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New Methodologie Eco-Friendly Using Calcined Eggshell Meal Catalyst for Synthesis of Benzimidazoles, Benzoxazoles and Benzothiazoles
Abdeljabar Haboub,
Meryem Hamlich,
Souad Harkati,
Yassine Riadi,
Rachid Slimani,
Mina Aadil,
Anouzla Abdelkader,
Saïd Lazar,
Mohamed Safi
Issue:
Volume 4, Issue 5-1, September 2015
Pages:
28-32
Received:
21 March 2015
Accepted:
23 March 2015
Published:
15 May 2015
Abstract: The Calcined Eggshell Meal (CEM) doped is a new solid support has been employed as a catalyst for efficient synthesis of benzimidazoles, benzoxazoles and benzothiazoles. Taking into account environmental and economical considerations, the handling of CEM used here presents many advantages such as simple and convenient procedure, easy purification and shorter reaction time and enhanced recycling possibilities, which are now well established in fine organic synthesis.
Abstract: The Calcined Eggshell Meal (CEM) doped is a new solid support has been employed as a catalyst for efficient synthesis of benzimidazoles, benzoxazoles and benzothiazoles. Taking into account environmental and economical considerations, the handling of CEM used here presents many advantages such as simple and convenient procedure, easy purification a...
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An Eco-Friendly Paradigm for the Production of Potentially Anti-Parasitic Drugs
Younes Abrouki,
Abdelkader Anouzla,
Hayat Loukili,
Rabiaa Lotfi,
Ahmed Rayadh,
My Abdellah Bahlaoui,
Driss Zakarya,
Mohamed Zahouily,
Rachid Mamouni,
Saïd Sebti,
Adil Mandil
Issue:
Volume 4, Issue 5-1, September 2015
Pages:
33-36
Received:
14 May 2015
Accepted:
14 May 2015
Published:
22 May 2015
Abstract: A cleaner production of various potentially anti-parasitic drugs based bis-(arylmethylidene)cycloalkanones have been developed using a heterogeneous catalysis technology in aqueous media without organic solvent. The higher activity and selectivity of our solid-state synthetic phosphate catalyst coupled with their ease of use and reduced environmental problems makes them attractive alternatives to homogeneous basic reagents.
Abstract: A cleaner production of various potentially anti-parasitic drugs based bis-(arylmethylidene)cycloalkanones have been developed using a heterogeneous catalysis technology in aqueous media without organic solvent. The higher activity and selectivity of our solid-state synthetic phosphate catalyst coupled with their ease of use and reduced environment...
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