NISCAIR Online Periodicals Repository Collection: JSIR Vol.71(10) [October 2012]

Effect of Substrate to Inoculum ratio (S/I) on Liquefaction and Biomethanation of Fish Market Waste

Fri, 28 Sep 2012 22:58:59 GMT

Title: Effect of Substrate to Inoculum ratio (S/I) on Liquefaction and Biomethanation of Fish Market Waste

Authors: Thirumurugan, P.; Gopalakrishnan, A. Navaneetha

Abstract: This study presents effect of pre-treatment using anaerobic microbial inoculum on solubilisation of fish waste. Solubilization of fish waste in pre- treatment using anaerobic inoculum, 2.3 times was more when compared with control. From biochemical methane potential (BMP) studies, FW with pre- treatment using anaerobic inoculums, generated 0.36 m³/ kg VS_d which was 1.3 times more than the control. Similarly methane generation of 0.29 m³ / kg VS_a, it was 0.7 times lower than that reported in literature.

Page(s): 699-702

Corrosion inhibition of carbon steel by new enaminonitrile derivatives in HCl Solution

Fri, 28 Sep 2012 22:58:59 GMT

Title: Corrosion inhibition of carbon steel by new enaminonitrile derivatives in HCl Solution

Authors: Fouda, A. S.; Elattar, K. M.

Abstract: In the present investigation new corrosion inhibitors, enaminonitrile derivatives (1-3) were synthesized characterized and tested as corrosion inhibitors for carbon steel in 1 M HCl using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and electrochemical frequency modulation techniques. The corrosion inhibition efficiency measured by the above three techniques were in good agreement with each other. Electrochemical polarization data revealed the mixed mode of inhibition. The inhibition efficiency increases with increasing inhibitor concentration. Adsorption of enaminonitrile derivatives 1-3 was found to follow the Temkin adsorption isotherm. The mechanism of inhibition process was discussed in the light of the chemical structure and quantum-chemical calculations of the investigated inhibitors.

Page(s): 690-698

Adsorption of acid black 1 by using activated carbon prepared from scrap tires: kinetic and equilibrium studies

Fri, 28 Sep 2012 22:58:59 GMT

Title: Adsorption of acid black 1 by using activated carbon prepared from scrap tires: kinetic and equilibrium studies

Authors: Hoseinzadeh, Edris; Rahmanie, Ali Reza; Asgari, Ghorban; McKay, Gordon; Dehghanian, Ali Reza

Abstract: The effects of initial dye concentration, pH, contact time and the adsorbent dosage were studied. The chemical composition and solid structure of the activated carbon were analyzed using scanning electron microscope (SEM) imaging coupled with energy dispersive spectrometry (EDS). The surface area was measured using Brunauer-Emmett-Teller (BET) isotherm. Experimental adsorption isotherms were well fitted by Langmuir model and maximum adsorption capacity (Qm) for AB1was found to be 14.51 mg g^-1. The kinetic studies showed that the adsorption of AB1 complies with the pseudo-second-order kinetic model (R² > 0.9999).

Page(s): 682-689

Cream Containing Acacia Bark Extract Significantly Reduces Skin Sebum Content in Healthy Volunteers

Fri, 28 Sep 2012 22:58:59 GMT

Title: Cream Containing Acacia Bark Extract Significantly Reduces Skin Sebum Content in Healthy Volunteers

Authors: Atif Ali, Atif; Akhtar, Naveed; Khan, Haji Muhammad Shoaib

Abstract: This study presents sebum reduction in volunteers’ cheeks when applied a cream containing Acacia bark extract analyzed by non-invasive instrument Sebumeter. A cream containing Acacia nilotica bark extract (3%) versus base was applied in single blinded study twice daily to the cheeks for a period of 12 weeks. The instrumental measurements were carried out with Sebumeter under a draught-free room, with controlled temperature (18.0–20.6°C) and relative humidity (55–65%). Active cream showed a significant decrease in skin sebum and base showed insignificant results when applied ANOVA. This study indicates that incorporation of Acacia bark extract in creams significantly reduces sebum secretion in vivo and can be used for the topical treatment of oily skin in humans.

Page(s): 678-681