نتایج جستجو برای: rice husk ash

تعداد نتایج: 95217  

2012
Bogdan Bogdanov Irena Markovska Yancho Hristov Dimitar Georgiev

Lightweight ceramic materials in the form of bricks and blocks are widely used in modern construction. They may be obtained by adding of rice husk, rye straw, etc, as porous forming materials. Rice husk is a major by-product of the rice milling industry. Its utilization as a valuable product has always been a problem. Various technologies for utilization of rice husk through biological and ther...

The demand for sustainable alternative construction materials to cement in modern technology cannot be underemphasized. This paper presents a non-fired green brick with an agriculture residue namely, rice husk. Although, high plasticity brown clay deposits are widely distributed in Malaysia and rice husk is a well known agriculture residue, research works on non-fired green brick with rice husk...

Journal: :تحقیقات آب و خاک ایران 0
کامی کابوسی عبدالمجید لیاقت حسن رحیمی

regarding the role and importance of subsurface drainage in water table control, many studies have been made throughout the world to find out new techniques and more economical solutions, especially as related to different pipe envelope material and their installations. this research was conducted to investigate the use of rice husk, as drain envelope material, in drainage installations. in add...

2014
Ying Zhang Ru Zheng Jiaying Zhao Fang Ma Yingchao Zhang Qingjuan Meng

Rice husk, a surplus agricultural byproduct, was applied to the sorption of copper from aqueous solutions. Chemical modifications by treating rice husk with H3PO4 increased the sorption ability of rice husk for Cu(II). This work investigated the sorption characteristics for Cu(II) and examined the optimum conditions of the sorption processes. The elemental compositions of native rice husk and H...

Journal: :Revista Brasileira de Ciência do Solo 2014

Journal: :Cement and Concrete Composites 2017

Journal: :The Tohoku journal of experimental medicine 2004
Hiroyuki Kayaba Hitomi Meguro Hajime Muto Yumiko Kamada Tetsuya Adachi Yoshiyuki Yamada Akira Kanda Kazutoshi Yamaguchi Kazuyuki Hamada Shigeharu Ueki Junichi Chihara

Grain dust and other irritants affect the airway of allergic patients in rice-growing area during the harvest. The aim of this study was to elucidate the mechanism of airway hypersensitivity in rice-growing areas during the harvest. Firstly, the effect of rice-husk dust on eosinophil activation was studied. Secondary, the concentration of lipopolysaccharides (LPS), a potent activator of inflamm...

2014
Hongxi Zhang Xuefeng Ding Zichen Wang Xu Zhao

Rice husk is an abundant agricultural by-product reaching the output of 80 million tons annually in the world. The most common treatment method of rice husk is burning or burying, which caused serious air pollution and resource waste. In order to solve this problem, a new method is proposed to comprehensively utilize the rice husk in this paper. Firstly, the D-xylose was prepared from the semic...

Journal: :Science and Technology Development Journal 2018

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