activated carbon from rice husk

Chlorine free extraction of cellulose from rice husk and whisker isolation

Ngày tải lên : 08/10/2014, 06:05

... carbide whiskers from RH (Sujiroti & Leangsuwan, 2003) and of cellulose whiskers from rice straws (Orts et al., 2005) So, the fractionation of lignocellulosic materials of rice husks into its constitutive ... properties of puriﬁed cellulose isolated from rice husk were compared to the properties of commercial microcrystalline cellulose (MCC) Experimental 2.1 Materials Rice husk was supplied by Engenho Meirebe ... stages In comparison to extractive-free rice husk (Fig 2a), after 15 of alkaline treatment in autoclave, it can be seen that the rice husk particles changed from ﬂat to rolled shape (Fig 2b) Fig...

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STUDIES ON THE SYNTHESIS OF WOLLASTONITE FROM RICE HUSK ASH AND LIMESTONE (Full Thesis) NGHIÊN CỨU VỀ TỔNG HỢP wollastonite từ vỏ trấu ASH và đá vôi

Ngày tải lên : 20/10/2014, 21:48

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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon

Ngày tải lên : 05/09/2013, 09:38

... iron-modified rice husk carbon (RH-Fe)which was prepared from an available, cheap source of carbon (rice husk carbon) and the most effective agent (iron) for the removal of both As[III] and As[V] from ... of rice husk carbon and its activated form was lesser by approximately 4.8-5.5 times as compared to that of the calcium-modified rice husk carbon (Mondal et al., 2007b) Since the untreated rice ... estimated maximum sorption capacity of quaternized rice husk was 19 mg/g Mondal et al (2007b) reported that both rice husk carbon (RH) and activated carbon (GAC) had lesser arsenic removal capacity,...

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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon

Ngày tải lên : 05/09/2013, 09:38

... column tests (RSSCT) results, ironpreloaded carbon could get over 200 times longer bed life than non-modified carbon Although iron-modified activated carbon (AC-Fe) is known as a good adsorbent, ... and Bikash M (2007) Removal of Trivalent Arsenic (As(III)) from Contaminated Water by Calcium Chloride (CaCl2)-Impregnated Rice Husk Carbon Ind Eng Chem Res., 46, 2550-2557 Rupa B., Debashis C ... remove arsenic from groundwater for ready applicability in rural areas, especially in developing and poor countries This work aims to study the adsorption column for removal of arsenic from synthetic...

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NCKH BLACK CARBON EMISSION FROM RICE STRAW OPEN BURNING IN SOME PROVINCES OF THE RED RIVER DELTA

Ngày tải lên : 10/05/2016, 10:44

... and ecosystem The RRD is the second most important rice- producing area in Vietnam; rice cultivation generates huge amounts of rice straw Burning rice straw in the field becomes a popular activity ... 3.2 Estimate Black Carbon emission 3.3 Compare the results of the two approaches 3.4 Measurement of Black Carbon 3.5 Solution to reduce rice straw open burning Chapter 1.1 Black carbon • • Production ... wood, ) 14 1.3 Rice straw burning in the fields energy replace for rice straw Using other fuels such as gases, biogas, wood, solar Using tiled roofs and roofslab replace for rice straw Rice Straw...

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DSpace at VNU: Removal of As(V) from aqueous solutions by iron coated rice husk

Ngày tải lên : 16/12/2017, 07:01

... wants to remove As(V) from natural waters that contains also phosphate residues from wastewater or fertilizers Conclusion The RH-FeOOH adsorbent was prepared using rice husk from Vietnam The characteristics ... process water, e.g., in rural areas Materials and methods 2.1 Treatment of rice husk (RH) Air-dried RH was purchased from the vicinity of Hanoi, Vietnam, and ground in a vibratory mill (BLB Braunschweig) ... adsorption of arsenic ions such as rice polish [11], zeolite [12], red mud [13], modiﬁed fungi Aspergillus niger [14], activated alumina [15], surface-modiﬁed carbon black [16], iron hydroxides...

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RESEARCH ON THE CHANGE OF 2-AP AND OTHER VOLATILE COMPOUNDS IN PROCESSING BUN FROM RICE

Ngày tải lên : 28/08/2013, 16:28

... extract 2-AP as standard Rice materials include two varieties from Vietnam, OM 6162, Khao Dawk Mali (KDM) and two varieties from Korea, Chucheong variety (milled rice) , and Black rice (mixture of several ... Volatile compounds in Chucheong rice from Korea recorded by GC-FID showed that it has no peak 2-AP at the Rt 9.498 minute 3.3 Identification of 2-AP in OM rice from Cuulong Rice Research Institute, ... aromatic rice and other medicinal plants such as Thien Nien Kien Homalomena aromatica (Phan Phuoc Hien et al., 2011) In the process of vermicelli strands (Bun) prepared from rice, step of soaking rice...

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A Study on the Optimum Backwashing Method applied to Activated Carbon Process in Waterworks

Ngày tải lên : 05/09/2013, 08:40

... of a granular activated carbon In a granular activated carbon contact basin, virgin carbon is domestic activated carbon made from palm shell, reactivated carbon means activated carbon produced ... facilities, and spent carbon is activated carbon used for over years The specification of three carbons are expressed in Table Table The specification of activated carbons Spent* Reactivated** Virgin** ... the minimum fluidization between spent and reactivated carbon results from the height of an activated- carbon layer and the condition of activated carbon, etc Also, backwashing at the LL water...

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Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge

Ngày tải lên : 05/09/2013, 08:40

... a granular activated carbon biofilm reactor Appl Microbiol Biotechnol 52, 722-729 De Walle F B and Chian E S K (1977) Biological regeneration of powdered activated carbon added to activated sludge ... of PAC for 3,5-DCP in activated sludge was determined supernatant by centrifugation (8,000 rpm, 20 minutes) The adsorption Activated sludge with PAC was separated from From 100 to 200 mg of the ... powdered activated carbon Water Research 13, 1225-1231 Xiaojian Z., Zhansheng W., and Xiasheng G (1991) Simple combination of biodegradation and carbon adsorption-the mechanism of the biological activated...

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Evaluation of Loading Rate of Nitrogen from Rice-Paddies by Small Watershed Method

Ngày tải lên : 05/09/2013, 09:38

... preventing rice- paddies from muddy discharge during the puddling and transplanting practices Rice paddies are flooded from mid-April through August with a drainage period for about ten days from late ... was estimated from the results obtained from continuous observations for three years at a small watershed of rice- paddies MATERIALS AND METHODS Study site The experimental small rice- paddy watershed ... of EPW from the upper end of EPW and not collect any drainage from the outside of EPW The ditch flows at about 200 m downstream into Ezura River The watershed lies between 85.6 and 86.1 m from...

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Treatment of semi-aerobic landfill leachate using durian peel-based activated carbon adsorption- Optimization of preparation conditions

Ngày tải lên : 05/09/2013, 16:10

... produce activated carbon from alternative material that is cheaper, renewable and readily available In recent years, focus has been given on the preparation of low cost activated carbon from agricultural ... pore evolution of the activated carbons occurred from continual devolatilization and carbon CO2 reaction whereby enhanced pores development on the surface of activated carbon (a) (b) Figure SEM ... decreased signiﬁcantly whereas the ﬁxed carbon content increased in activated carbons It can be seen that the carbon content of DP was increased from 38.78 to 62.85% from the elemental analysis This...

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Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn

Ngày tải lên : 05/09/2013, 16:11

... species from water using activated siderite-hematite column filters Journal of Hazardous Materials 2007, 151, 628-635 [14] McKay, G Adsorption of Dyestuffs from Aqueous Solutions with Activated Carbon ... complete contact of dye solution with carbon particles In order to prevent carbon leakage or attrition, glass wool was added above and under the activated carbon bed Before the adsorption test ... Propagation Theory Dye Adsorption by Activated Carbon, Ind Eng Chem Res 1998, 37, 253-257 [7] Walker, G and Weatherley, L Adsorption of Acid Dyes on to Granular Activated Carbon in Fixed Beds, Wat Res...

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Thermo-acidophillic biohydrogen production from rice bran de-oiled wastewater by Selectively enriched mixed culture

Ngày tải lên : 05/09/2013, 16:11

... temperature and nitrogen source) Materials and methods 2.1 Rice bran de- oiled wastewater Rice bran de-oiled wastewater was collected from local oil producing company located in and around Vijayawada ... granular sludge bed induced by activated carbon carriers Int J Hydrogen Energy 2006, 31,465 – 472 Vijayaraghavan K., Ahmad D., Ibrahim M Biohydrogen generation from jackfruit peel using anaerobic ... production in a granular activated carbon anaerobic fluidized bed reactor Int J Hydrogen Energy 2007, 32,185191 Fang H., Liu H Effect of pH on biohydrogen production from glucose by a mixed culture...

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activated carbon adsorption

Ngày tải lên : 11/03/2014, 23:35

... Chapter Activated Carbon Adsorption and Environment: Removal of Inorganics from Water .297 6.1 Activated Carbon Adsorption of Inorganics from Aqueous Phase (General) 299 6.2 Activated ... Chapter Activated Carbon Adsorption and Environment: Adsorptive Removal of Organics from Water 373 7.1 Activated Carbon Adsorption of Halogenated Organic Compounds 374 7.2 Activated Carbon ... area Carbon cloth and ﬁbrous activated carbons (activated carbon ﬁbers) have a large surface area and contain a comparatively higher percentage of larger pores Active carbons in the form of carbonized...

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Báo cáo khoa học: Expression analysis of the nucleocytoplasmic lectin ‘Orysata’ from rice in Pichia pastoris ppt

Ngày tải lên : 14/03/2014, 23:20

... lectin from salt-stressed rice (Oryza sativa) plants Planta 210, 970–978 Claes B, Dekeyser R, Villarroel R, Van den Bulcke M, Bauw G, Van Montagu M & Caplan A (1990) Characterization of a rice ... induced by rice blast fungus and elicitor in suspension-cultured rice cells Proteomics 3, 2368–2378 Qin QM, Zhang Q, Zhao WS, Wang YY & Peng YL (2003) Identiﬁcation of a lectin gene induced in rice ... Oliveira et al described the expression of the JRL from breadfruit seeds (Artocarpus incisa) in Pichia [16] In 2007 the ﬁrst nucleocytoplasmic lectin from tobacco (Nicotiana tabacum agglutinin, Nictaba)...

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BÁO CÁO "RESEARCH ON THE CHANGE OF 2-AP AND OTHER VOLATILE COMPOUNDS IN PROCESSING BUN FROM RICE" doc

Ngày tải lên : 19/03/2014, 16:20

... extract 2-AP as standard Rice materials include two varieties from Vietnam, OM 6162, Khao Dawk Mali (KDM) and two varieties from Korea, Chucheong variety (milled rice) , and Black rice (mixture of several ... Volatile compounds in Chucheong rice from Korea recorded by GC-FID showed that it has no peak 2-AP at the Rt 9.498 minute 3.3 Identification of 2-AP in OM rice from Cuulong Rice Research Institute, ... aromatic rice and other medicinal plants such as Thien Nien Kien Homalomena aromatica (Phan Phuoc Hien et al., 2011) In the process of vermicelli strands (Bun) prepared from rice, step of soaking rice...

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Chemicals,Chemicals Organic, Chemicals Inorganic, Zeolite, Sulphate, Wax, Activated Carbon, Polishing, Compounds, Acids, Starch, Nitrate, Phosphate, Formaldehyde, Biotechnology, Enzymes, Bio Fertilizer, Vermiculture and Vermi Compost docx

Ngày tải lên : 22/03/2014, 14:20

... Alcohol From Molasses Acetic Acid (Glacial) Acetic Acid From Molasess Acetic Acid From Natural Gas Acetonapthone Acetone Acetylene Gas Acid Washed Granulated Activated Carbon Activated Carbon From ... Charcoal Carbon Black From Fertilizer Waste Carbon Brushes Carbon Dioxide Carbon Black Chloro Ethyl Caustic Soda Charcoal From Coconut Shell Carbon Monoxide Calcium Carbide Calcium Carbide From Limestone ... Acetic Acid (Glacial) Acetic Acid from Natural Gas Acetone Acetyelene Black Acrylic Copolymer Emulsion Activated Alumina Activated Calcium Carbonate Activated Carbon Activated Fuller Earth Aerosol...

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Báo cáo khoa học: Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants ppt

Ngày tải lên : 30/03/2014, 10:20

... subunit B (B) proteins of rice with other homologs from different organisms Fig S2 Schematic alignment of the position of introns in TOP6 subunits A and B homologs from rice and Arabidopsis in ... only intron present in the ORF of AtSPO11-3 genes (Fig S2) are absent from rice OsTOP6A2 and OsTOP6A3 genes, respectively From these observations, it can be speculated that Arabidopsis has gained ... PCR amplified, using gene-specific primers and the first-strand cDNA synthesized from total RNA (2–3 lg) isolated from rice flowers using StratascriptÔ Reverse Transcriptase (Stratagene, La Jolla,...

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Báo cáo khoa học: Activated transglutaminase from Streptomyces mobaraensis is processed by a tripeptidyl aminopeptidase in the ﬁnal step pptx

Ngày tải lên : 31/03/2014, 07:20

... a-chymotrypsin-beaded agarose (both from bovine pancreas) and all inhibitory compounds used were purchased from Sigma (Deisenhofen, Germany) All other synthetic peptides were from N-Zyme BioTec (Darmstadt, ... of TGase clearly showed that SM-TAP removes Arg-Ala-Pro and Phe-Arg-Ala-Pro from the chymotrypsin -activated and TAMEP -activated intermediate, respectively However, the trypsin fragment (AP-TGase) ... or Bachem (Heidelberg, Germany) Dispase I was from Roche Diagnostics (Mannheim, Germany) Additional materials were obtained in analytical grade from Merck (Darmstadt, Germany), Applichem (Darmstadt,...

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Báo cáo " CLEAN DEVELOPMENT MECHANISM PROJECT DESIGN DOCUMENTS (CDM-PDD) FOR PILOT GRID-CONNECTED RICE HUSK-FUELLED BIO-POWER DEVELOPMENT PROJECTS IN MEKONG DELTA, VIETNAM " docx

Ngày tải lên : 31/03/2014, 17:20

... pCO2CER; Bt ask = Benefit given by rice husk ash sale = pashWt; Pe = rice husk electricity sale price; pCO2 = CER sale price; pash = rice husk ash sale price; Wt = rice husk electricity sale to EVN ... willingness to sell the stored rice husk, the rice husk selling capability and the acceptable rice husk pricing level of current rice milling centers • the steady rice husk availability and procurement ... Emission Emission from from Emission from from open air fuel oil Emission from grid biomass transportation – = + burning – – use for reduction electricity fuelled of rice husk for rice the generation...

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