activated carbon from shell coconut

... 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, ... 70.19m²/g, pore volume of 0.00062cm3/g and pore size of 126Å Preparation of AC-Fe AC from coconut shell was taken from MAPECOH, Inc (Philippines) with a particle size of 0.45-0.71mm after sieving ... 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...

Ngày tải lên: 05/09/2013, 09:38

... = activated carbon, ZC = activated zeolite, MAC = 2.5% (w/w) Se /activated carbon, MAC2 = 5% (w/w) Se /activated carbon and MZC = 5% (w/w) Se /activated zeolite Preparation of Selenium-Doped Activated ... used without further purification Preparation of Selenium-Doped Activated Carbon 2.3 14 Preparation of MAC (2.5% w/w Se /Activated Carbon) A 1000 mg/l Se solution was prepared by dissolving 0.25 ... 2.4 Preparation of Fresh Coconut Oil by Acidity Method Fresh coconut oil was prepared as previously reported by Sasmita and Falah.18 The l fresh juice extracted from 20 coconut fruits were kept...

Ngày tải lên: 07/08/2014, 14:20

... 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...

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...

Ngày tải lên: 05/09/2013, 08:40

... 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...

Ngày tải lên: 05/09/2013, 16:10

... 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...

Ngày tải lên: 05/09/2013, 16:11

... 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...

Ngày tải lên: 11/03/2014, 23:35

... 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 ... 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 ... Alcohol From Rice Straw Aluminium Hydroxide Gel Ammonium Nitrate Ammonium Sulphate Amyl Acetate Antimony Potassium Tartrate Acid Slurry (Lab) Activated Alumina Activated Carbon From Coconut Shell...

Ngày tải lên: 22/03/2014, 14:20

... 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,...

Ngày tải lên: 31/03/2014, 07:20

Ngày tải lên: 12/07/2014, 09:20

... Sulfite Red S3B adsorption on activated carbon with initial solution concentrations of 20ppm and 40ppm a) Weight of activated carbon: ca 0,3gr b) Weight of activated carbon: ca 0,6gr Trang 102 TẠP ... Procion Yellow HE-XL adsorption on activated carbon with initial solution concentrations of 20ppm and 40ppm a)Weight of activated carbon: ca 0,3gr b) Weight of activated carbon: ca 0,6gr a) b) Figure ... Sulzol Blue R adsorption on activated carbon with initial solution concentrations of 20ppm and 40ppm a) Weight of activated carbon: ca 0,3gr b) Weight of activated carbon: ca 0,6gr NGHIÊN CỨU...

Ngày tải lên: 22/07/2014, 03:20

... properties of activated carbons Carbon, 37(8), 1323 –1332 Moreno-Castilla, C., Lopez-Ramon, M V & Carrasco-Marin, F (2000) Changes in surface chemistry of activated carbons by wet oxidation Carbon, ... and crystal sizes in turbostatic carbons Carbon, 1(1), 3–9 Noh, J S & Schwarz, J A (1990) Effect of HNO3 treatment on the surface acidity of activated carbons Carbon, 28(5), 675–682 Pradhan, B ... copper based activated carbon catalysts for methanol decomposition to hydrogen and carbon monoxide Fuel, 82(7), 755–763 Zhao, J., Liu, Z & Sun, D (2004) TPO-TPD study of an activated carbon- supported...

Ngày tải lên: 07/08/2014, 14:20

... in many countries With this sterilize water Technique in this way brings outstanding advantages From these results, Research Department sees that this method is perfectly positive Additionally, ... objects: the flocculation materials is aluminum Al2(SO4)3 percent, adsorption materials is adtivated carbon PAC, Microfiltration (commonly abbreviated to MF) to sterilize water of Dong Nai River through...

Ngày tải lên: 25/11/2014, 11:51

Ngày tải lên: 25/11/2014, 11:53

... Các yếu tố ảnh hưởng đến trình hấp phụ 14 1.5 Tổng quan than hoạt tính (PAC: Powdered Activated Carbon) 15 1.5.1 Cơ chế hấp phụ than hoạt tính 15 1.5.2 Đặc tính than hoạt tính ... COD : Chemical Oxygen Demand MF : Micro Filtration NF : Nanofiltra Filtration PAC : Powdered Activated Carbon QCVN : Quy Chuẩn Việt Nam BOD : Biochemical Oxgen Demand BYT : Bộ Y Tế COD : Chemical ... Đối tượng nghiên cứu  Nước sơng Đồng Nai sau q trình keo tụ  Than hoạt tính (PAC_Powdered Activated Carbon)  Màng lọc vi lọc (MF_Micro Filtration) Phương pháp nghiên cứu  Phương pháp lý thuyết...

Ngày tải lên: 25/11/2014, 11:53

... modified activated carbon (HCO-AC) In order to compare the adsorption performance among different cerium -carbon fabricated materials, we take the other portion of treated particle activated carbon ... Thermo Scientific) Figure 4.1 SEM images of raw particle activated carbon (left) and nanosized hydrous cerium oxide modified activated carbon (HCO-AC) Figure 4.2 Preliminary test of As(V) adsorption ... High High High Area Required Waste Removal Efficiency 2.3 Application of activated carbon in water treatment Activated Carbon (AC) is a crude form of graphite with an amorphous structure, which...

Ngày tải lên: 30/09/2015, 10:12

... on the synthesis techniques of porous carbons Porous carbons can be produced in the powdered form or a more defined bodily form such as carbon monoliths Carbon monoliths demonstrate higher mechanical ... of the carbon species 2.1.1 Thermal activation Highly porous carbon materials are usually not attainable by solely carbonizing the precursors An activation process usually accompanies the carbonization ... namely carbon dioxide, steam and in rare occurrence, oxygen Based on the following stoichiometric equations, the porosity of the carbon material is improved by ‘removing’ carbon atoms from the...

Ngày tải lên: 02/10/2015, 17:14

... Biological activated carbon process 2.3.1 Activated carbon adsorption Activated carbon has been used for a long time in water and wastewater treatment Adsorption capacity of activated carbon is ... process in oily wastewater treatment 2.3 Biological activated carbon process 2.3.1 Activated carbon adsorption 2.3.2 Biological activated carbon process 2.3.3 MBR process coupled with BAC process ... having oil concentration of 150 mg/L 3.1.2 Powdered activated carbon The activated carbon used in this study was untreated powdered activated carbon (PAC) supplied by Sigma Chemical Company Major...

Ngày tải lên: 20/06/2016, 15:42

... per unit area, M, of the carbon cloth Carbon cloth pieces were prewetted by leaving in water for 24 h before use The idea of using prewetted carbon cloth originates from our previous findings ... benzoic acid from aqueous solutions at different pH values onto the carbon cloth The initial concentration is 1.96 × 10−4 M The mass of the carbon cloth is 18.0 ± 0.1 mg age coverage at the carbon ... specific surface area activated carbon cloth A systematic study is conducted in order to observe the influence of pH on the adsorption process Materials and methods 2.1 Materials The carbon cloth used...

Ngày tải lên: 01/12/2016, 16:24

... lignite, coconut shell, or coal-based carbon; not backwash carbon Look for NSF certification mark Petroleum/gasoline by-products Use only point-of-entry units Use petroleum, lignite, coconut shell, ... through the activated carbon unit will decrease as the filter becomes saturated with contaminant Materials used in activated carbon filtration The solid material used in an activated carbon filter ... affects the capacity of activated carbon to adsorb a specific contaminant When the activated carbon becomes saturated (all adsorption sites filled), contaminants can flow from the carbon back into solution...

Ngày tải lên: 20/07/2017, 23:50