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Article
Supercapacitor electrodes from activation of binderless green monoliths of biomass self-adhesive carbon grains composed of varying amount of graphene additive
Binderless electrodes of activated carbon monoliths (ACMs) and its composites with graphene are prepared by carbonization and activation of green monoliths consisting of self-adhesive carbon grains and 0–10 wt...
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Article
Arsenic removal from soil with high iron content using a natural surfactant and phosphate
An environment friendly arsenic removal technique from contaminated soil with high iron content has been studied. A natural surfactant extracted from soapnut fruit, phosphate solution and their mixture was us...
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Chapter
A Review on the Empty Fruit Bunch Composting: Life Cycle Analysis and the Effect of Amendment(s)
This chapter reviews the Life Cycle Assessment (LCA) and the effect of amendment(s) for empty fruit bunches composting. A Life Cycle Assessment (LCA) of empty fruit bunches EFB composting as a solid waste proc...
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Article
RETRACTED ARTICLE: Quaternary Ammonium and Phosphonium Based Deep Eutectic Solvents for the Solution-Based Exfoliation of Graphene
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Article
Stability and performance enhancements of Electrokinetic-Fenton soil remediation
Electrokinetic process is a potential in situ soil remediation process which transports the contaminants via electromigration and electroosmosis. For organic compounds contaminated soil, Fenton’s reagent is ut...
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Chapter and Conference Paper
Test Cases Automatic Generator (TCAG): A Prototype
Light has been shed recently on the usage ofrequirements-based testing where requirements-based models, specifically UML models, are used in proposing test cases’ generation models. In this paper, an automated...
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Article
Protein adsorption on Ion exchange resin: Estimation of equilibrium isotherm parameters from batch kinetic data
The simple Langmuir isotherm is frequently employed to describe the equilibrium behavior of protein adsorption on a wide variety of adsorbents. The two adjustable parameters of the Langmuir isotherm—the satura...
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Article
Effects of colloidal fouling and gas sparging on microfiltration of yeast suspension
Cross-flow microfiltration is an important step in separating Baker’s yeast (Saccharomyces cerevisiae) from aqueous suspension in many processes. However the permeate flux often declines rapidly due to colloidal ...
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Article
Electrochemical double layer capacitor based on cellulose-PVA hybrid electrolyte
A polyvinyl alcohol (PVA) cellulose electrolyte was prepared by casting a solution of PVA and H3PO4 on both sides of a cellulose membrane (filter paper). The ionic species H+ are caused by the H3PO4 acid which is...
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Article
Spirulina cultivation in digested sago starch factory wastewater
Wastewater arising from the production of sago starchhas a high carbon to nitrogen ratio, which is improvedwith anaerobic fermentation in an upflow packed beddigester. The digested effluent with an average C: ...
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Article
Particle-bubble attachment in yeast flotation by colloidal gas aphrons
Flotation of microorganisms by colloidal gas aphrons (CGAs) is recognised as an inexpensive and effective method of separation. CGAs are micro-sized gas bubbles of 25 μm in average diameter and each is encaps...
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Chapter
Monte Carlo Simulation of the Crystal Size Distribution with Attrition Effects in a Mixed Suspension Crystallizer
The effects of attrition on crystal size distribution in a continuous mixed suspension crystallizer were predicted by a Random Breakage model. The crystal size distribution was computed by Monte Carlo (MC) tec...
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Article
Mass transfer correlation in flotation of palm oil by colloidal gas aphrons
Colloidal gas aphrons (CGAs) are micron-sized bubbles, which are produced by stirring a dilute surfactant solution at a high speed. In this work, CGAs have been used to clarify oily wastewater by flotation te...
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Article
The effect of pore size distribution on the separation efficiency in surface force pore-flow model-system: isopropanol-water
The surface force pore-flow (SFPF) model is based on solute-membrane material interactions at the membrane-solution interface. It has been used to model the transport of solute and solvent through membranes u...
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Article
Immobilization of urease using Amberlite MB-1
Amberlite MB-1 was used to immobilize urease (EC.3.5.1.5). The thermal stability of the immobilized urease was better than that of the free urease. Its highest activity was obtained at 75 °C and at pH 6.5 whi...
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Article
Urease immobilized on nylon: preparation and properties
Urease (EC 3.5.1.5) was covalently attached through glutaraldehyde to partially hydrolysed nylon 6/6 tubes. The highest activity of immobilized enzyme was obtained at 65 °C and pH 6.5, while the optimum tempe...
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Article
Reusability of seaweed biosorbent in multiple cycles of cadmium adsorption and desorption
The uptake of cadmium by the seaweed Sargassum siliquosum was investigated over five consecutive cycles of adsorption and desorption with HCl as the desorbent. A large fraction of the cadmium loaded in the fir...
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Article
Clarification of yeast by colloidal gas aphrons
Colloidal gas aphrons or CGAs were employed in a flotation column for the recovery of yeast from aqueous solutions. The CGAs sparging rate was a critical factor that governed the efficiency of the process. The...