نتایج جستجو برای: tartaric acid modified rice husk

تعداد نتایج: 1044375  

Journal: :Acta crystallographica. Section C, Crystal structure communications 2006
Graham Smith Urs D Wermuth Jonathan M White

The structures of two compounds of L-tartaric acid with quinoline, viz. the proton-transfer compound quinolinium hydrogen (2R,3R)-tartrate monohydrate, C9H8N+.C4H5O6-.H2O, (I), and the anhydrous non-proton-transfer adduct with quinaldic acid, bis(quinolinium-2-carboxylate) (2R,3R)-tartaric acid, 2C10H7NO2.C4H6O6, (II), have been determined at 130 K. Compound (I) has a three-dimensional honeycom...

Background and Aim: Hexavalent chromium is a heavy metal with harmful effects on surface and ground water. Its removal from contaminated water and waste water has received great interest in recent years. This study aimed to evaluate the absorption of hexavalent chromium from aquatic environments using functionalized carbon produced from rice husk as an inexpensive and biological adsorbent. Mat...

Journal: :iranian journal of health sciences 0
ramazan ali diyanati tilaki department of environmental health engineering, faculty of health and health sciences research center, mazandaran university of medical sciences, sari, iran davoud balarak student research committee, department of environmental health, school of health, mazandaran university of medical sciences, sari, iran mehdi ghasemi student research committee, department of environmental health, school of health, mazandaran university of medical sciences, sari, iran

background and purpose: dye is widely used in industries such as cosmetic, leather, paper and textile and release to the environment via their effluents. the purpose of this study was to compare the efficiency of low-cost adsorbents in acid orang 7 dyes removal from water. materials and methods: the rice stem biomass was sun dried, crushed and sieved to particle sizes in range of 1-2 mm. then t...

Faranak Mohammadkazemi, Kazem Doosthoseini

In this study the effect of nano sized silica particles (nano-SiO2) on the physical and mechanical properties of rice husk and Old Corrugated Container (OCC)-cement boards was investigated. Modulus Of Rupture (MOR), Modulus Of Elasticity (MOE), Internal Bonding Strength (IB), density, water absorption and thickness swelling after 24 hours immersion in water and hardness were meas...

2016
J. M. Pereira

can be completely dispensed with. The standard pattern of jail filth receptacle answers admirably. This is made easy by the fact that I have dispensed with the system of " earth proofing " each deposit in the latrines, and substituted paddy husk instead. To us here, this item is a bye-product in our garden department; we produce 80 maunds of rice locally, and it is found by experiment that a po...

Mohadeseh Seddighi

Mohaddeseh Seddighi was born in Rasht, Guilan, I. R. Iran (1985). She received B.Sc. in applied chemistry from Isfahan University of Technology (IUT) (2007) and his M.Sc. in organic chemistry from Isfahan University of Technology (2010) under the direction of Professor Abdol. R. Hajipour. She began her Ph.D. studies at University of Guilan under supervision of Professor Farhad Shirini from 2011...

Mohadeseh Seddighi

Mohaddeseh Seddighi was born in Rasht, Guilan, I. R. Iran (1985). She received B.Sc. in applied chemistry from Isfahan University of Technology (IUT) (2007) and his M.Sc. in organic chemistry from Isfahan University of Technology (2010) under the direction of Professor Abdol. R. Hajipour. She began her Ph.D. studies at University of Guilan under supervision of Professor Farhad Shirini from 2011...

Synthetic dyes are among the most common contaminants of the environment. Therefore, the aim of this study was investigation the removal of Basic Blue 41 (BB41) and Methylene Blue (MB) from industrial effluents by useing raw and modified rice stems. In this study raw and modified rice stems treated chemically with Citric Acid (CA) and were used to explore the potentiality of rice stems for ...

2008
Fei Yao Qinglin Wu Yong Lei Yanjun Xu

Composite panels using virgin and recycled high-density polyethylene (VHDPE and RHDPE) and five types of natural fibers including four rice straw components (i.e., rice husk, rice straw leaf, rice straw stem, and whole rice straw) and wood fiber as control were made by melt compounding and compression molding. Fiber characteristics and the influences of fiber type and loading rate on HDPE cryst...

2013
Hafiz Muhammad Nasir Iqbal Ishtiaq Ahmed Muhammad Anjum Zia Hafiz Abad

This paper reported the purification and kinetic parameters characterization of an alkaline protease produced from Bacillus subtilis through submerged fermentation process using rice husk as growth supporting substrate (by-product of rice industry) collected from Pearl Rice Mill Hafiz Abad, Faisalabad. Bacillus subtilis was cultured in fermentation medium under some pre-optimized growth conditi...

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