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  1. No Access

    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...

    M.R.M. Jasni, M. Deraman, M. Suleman, Z. Zainuddin, M.A.R. Othman, C.H. Chia… in Ionics (2018)

  2. No Access

    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...

    A. Y. Zahrim, T. Asis, M. A. Hashim… in Advances in Bioprocess Technology (2015)

  3. Article

    RETRACTED ARTICLE: Quaternary Ammonium and Phosphonium Based Deep Eutectic Solvents for the Solution-Based Exfoliation of Graphene

    M. H. Chakrabarti, S. Eslava, I. M. Al Nashef… in Journal of Solution Chemistry (2014)

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  4. No Access

    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...

    K. H. Chu, M. A. Hashim in Biotechnology and Bioprocess Engineering (2006)

  5. No Access

    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 ...

    B. Sen. Gupta, S. Hasan, M. A. Hashim, Z. F. Cui in Bioprocess and Biosystems Engineering (2005)

  6. No Access

    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...

    M. A. Hashim, S. R. Majid, Z. A. Ibrahim, A. K. Arof in Ionics (2005)

  7. No Access

    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...

    M. A. Hashim, S. V. Kumar, B. Sen Gupta in Bioprocess Engineering (2000)

  8. No Access

    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...

    K. C. Lim, M. A. Hashim, B. Sen Gupta in Mixing and Crystallization (2000)

  9. No Access

    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...

    M. A. Hashim, Avijit Dey, Shameem Hasan, B. Sen Gupta in Bioprocess Engineering (1999)

  10. No Access

    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...

    B. S. Gupta, M. A. Hashim, Z. F. Cui in Bioprocess Engineering (1999)

  11. No Access

    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...

    A. Anita, C. A. Sastry, M. A. Hashim in Bioprocess Engineering (1997)

  12. No Access

    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...

    A. Anita, C. A. Sastry, M. A. Hashim in Bioprocess Engineering (1997)

  13. No Access

    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...

    R. Chitguppa, K.H. Chu, M.A. Hashim in Biotechnology Techniques (1997)

  14. No Access

    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...

    M. A. Hashim, B. Sen Gupta, S. Vijaya Kumar in Biotechnology Techniques (1995)