Abstract Rice straw can be used in the production of energy or organic fertilizer. However, one of the main problems in the transformation of rice straw is its low-biodegradability. This study reports a comparison on the effectiveness of the Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH) pre-treatment methods on the enhancement of rice straw solubilization to increase its biodegradability. Laboratory-scale experiments were carried out in reflux completely mixed reactors of 500 mL capacity. The Response Surface Method (RSM) was used to optimize experimental conditions. The respective optimum conditions determined from RSM for NaOH and KOH were as follows: concentration of 29.99 and 30 g/L, reaction time of 165.7 and 151.23 min, and temperature of 164.37 and 200°C. The actual and predicted results are clearly indicated that the solubility of rice straw is significantly increased under NaOH pretreatment in comparison with KOH. The actual results of solubility of rice straw under optimum conditions are compared well with the maximum predicted values.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Evaluation of significant parameters on alkaline pretreatment process of rice straw



    Published in:

    Publication date :

    2013-06-28


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Evaluation of significant parameters on alkaline pretreatment process of rice straw

    Hosseini, Seyed Mohammad / Aziz, Hamidi Abdul / Kiamahalleh, Meisam Valizadeh | Online Contents | 2013


    Straw pretreatment system

    LIU YUBO | European Patent Office | 2022

    Free access

    Rice straw field collecting vehicle

    YANG YUHAI | European Patent Office | 2020

    Free access

    Bioconversion of rice straw into a soil-like substrate

    Yu, C. / Liu, H. / Xing, Y. et al. | British Library Conference Proceedings | 2008


    Mechanical properties of rice straw fiber-reinforced polymer composites

    Ismail, M. R. / Yassen, A. A. / Afify, M. S. | British Library Online Contents | 2011