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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of significant parameters on alkaline pretreatment process of rice straw
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.
Evaluation of significant parameters on alkaline pretreatment process of rice straw
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.
Evaluation of significant parameters on alkaline pretreatment process of rice straw
Hosseini, Seyed Mohammad (Autor:in) / Aziz, Hamidi Abdul (Autor:in) / Syafalni (Autor:in) / Kiamahalleh, Meisam Valizadeh (Autor:in)
KSCE Journal of Civil Engineering ; 17 ; 921-928
28.06.2013
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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