... Low-Tech Coconut Shell Activated Charcoal Production Ami Cobb Senior, Department of Civil Engineering Santa Clara University Santa Clara, CA 95053 AmiCobb@gmail.com Mikell Warms Senior, Department of Civil Engineering Santa Clara University Santa Clara, CA 95053 Mikell.Warms@gmail.com Dr. Edwin P. Maurer Associate Professor, Department of Civil Engineering Santa Clara University Santa Clara, CA 95053 EMaurer@scu.edu Dr. Steven Chiesa Associate Professor, Department of Civil Engineering Santa Clara University Santa Clara, CA 95053 SChiesa@scu.edu Abstract – Water treatment technologies in the developing world typically focus on removing two types of impurities from water sources: suspended solids and microbial pathogens. However, as industrialization and high-input agriculture has expanded into the developing world, chemical impurities such as pesticides, herbicides, and fertilizers have found their way into drinking water supplies and have been linked to severe health-related issues. Activated carbon has the capacity to remove these problematic chemicals from water sources. A simple, inexpensive, and effective activated carbon production process using local agricultural waste byproducts was assessed for the community of Bluefields, Nicaragua. Coconut shell charcoal was produced on site, and various chemical activation techniques were investigated. The adsorption capacity of three separate chemically activated coconut shell charcoals was analyzed, with sodium...
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...Carbon from Latin: carbo "coal" is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity. There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is among the hardest materials known, while graphite is soft enough to form a streak on paper (hence its name, from the Greek word "to write"). Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond has the highest thermal conductivity of all known materials. All carbon allotropes are solids under normal conditions with graphite being the most thermodynamically stable form. They are chemically resistant and require high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is +4, while +2 is found in carbon monoxide and other transition metal carbonyl complexes. The largest sources of inorganic carbon are limestones, dolomites and carbon dioxide, but significant quantities occur in organic deposits of coal, peat, oil...
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...V: Results and Discussions: After doing research and sifting through all information pertaining to the goals set forth in this paper, the results and discussions explain fully just how the information was received and used to comply with all the goals and reasons for the research paper. The main goal was to explain fully what activated carbon is and that is charcoal that has been heated or otherwise treated to increase its adsorptive power. In the course text, Controlling Environmental Pollution: An Introduction to the Technologies, History, and Ethics: authors P. Aarne Vesilind and Thomas D. DiStefano describe activated carbon adsorption as a method of BOD removal (2006). The authors also go on to describing the process as an added advantage...
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...the Study Charcoal is the dark grey residue consisting of impure carbon obtained by removing water and other volatile constituents from animal and vegetation substances. Charcoal is usually produced by slow pyrolysis, the heating of wood or other substances in the absence of oxygen. The resulting soft, brittle, lightweight, black, material resembles coal. It has been used since the earliest times for a range of purposes including art and medicine, but by far its most important use has been as a metallurgical fuel. Prior to the industrial revolution charcoal was occasionally used as a cooking fuel. Philippines is the Top 1 among the coconut producing countries. For coconut is abundant in our country, it is popular for its culinary purposes, commercial, industrial, and household uses, and medical applications. Coconut shells with husks are used to buff wooden floors, making it clean and shiny (free from dusts). Here in the Philippines, it is known as “bunot”. The husk and shells can be used for fuel and are a source of charcoal. Coconut shells/husks are usually left around and are considered wastes besides making them into husks. To get benefits from them, by a primitive process, they can be produced to charcoal which can be an alternative fuel especially for cooking. B. Statement of the Problem The study aims to produce charcoal using coconut (Cocos nucifera) fibers. Specifically, it seeks to find answers for the following questions: 1. How much charcoal can be produced...
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...lead to contamination of water, which then leads to outbreaks of diseases. The documentary states that cholera outbreaks are very common in this area of Kenya because of people drinking contaminated water. Besides, chorea, the documentary also mentions that 1.5 million of the people here are also affected by AIDS, which is affected by contaminated water. To get this water, people, often mothers or girls, spend two to three hours round trip just to get one bucket. Luckily, there is a non-profit organization located here in Kenya called Water is Life, which is dedicated to helping developing countries with access to clean water. Water is Life also provided the people with straws that can filter water. The straws contain iodine crystals, charcoal, and a membrane that together can purify the water, making it safe to drink. These straws are very portable and make clean water more accessible. Another program in Kenya, Cooperative for Assistance and Relief Everywhere (CARE), was distributing PUR packets. These PUR packets used a chlorine compound to disinfect the water. Each packet is capable of purifying 10 liters of water. After mixing, the contaminants will settle out of the solution to the bottom, where it can be filtered out. After leaving Kenya, the girls went to the Dominican Republic, where they found another program called Filter Pure. This program started in 2006, purified water by using ceramic pots and sawdust. The iron in the ceramic and the carbon in the sawdust help...
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...of methylene blue and malachite green dye in single dye solution were studied. As a result, granular form of coconuts have higher percentage removal dye of methyelene blue and malachite green blue which is 98.3% and 99.0%. This study shows a major approach of turning the agricultural waste to an added value product which is absorbent for wastewater treatment especially in textile industries sector. Keywords: Coconut fibre, absorption, melethylene blue dye, malachite green dye. 1. INTRODUCTION Water pollution has become a serious problem around the world including Malaysia. Malaysia is one of the country that fall into this negatively impacts on the sustainability of water resources. Many industries sector in Malaysia such as textile, paper, paint, pharmaceuticals, food, leather, cosmetics, tannery, printing and plastics used wide verieties of dye in order to color their product for example such as batik in textile industry. Among those industries sector in Malaysia, textiles industry ranked first in the usage of dyes for coloration of fiber [1]. Considering both volumes discharged and effluent composition, wastewater from the textile industry was declared as one of the major sources of wastewater in ASEAN countries [2]. The wastewaters discharged from dying processes exhibit high biological oxygen demand (BOD), high chemical oxygen demand (COD) are highly colored, hot, alkaline...
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...Pakistan Veterinary Journal ISSN: 0253-8318 (PRINT), 2074-7764 (ONLINE) Accessible at: www.pvj.com.pk RESEARCH ARTICLE Antidiarrheal Evaluation of Aqueous and Ethanolic Stem Bark Extracts of Khaya senegalensis A. Juss (Meliaceae) in Albino Rats Ishaku L. Elisha, Micah S. Makoshi, Sunday Makama*, Christiana J. Dawurung, Nkechi V. Offiah§, Jurbe G. Gotep, Olusola O. Oladipo and David Shamaki National Veterinary Research Institute, P.M.B. 01, Vom, Plateau State, Nigeria; §Also affiliated with School of Veterinary Medicine, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad & Tobago *Corresponding author: dluutsi@yahoo.com ARTICLE HISTORY Received: Revised: Accepted: April 05, 2012 May 24, 2012 July 04, 2012 ABSTRACT The stem bark of Khaya senegalensis A. Juss (Meliaceae) is used traditionally in the treatment of malaria, intestinal worms, diarrhea, dysentery and venereal diseases. Despite the claim as an effective antidiarrheal remedy in both humans and animals, there is scarcity of documented scientific information of specific in vivo antidiarrheal test using extracts of this plant. The number of wet feces and the distance travelled by activated charcoal meal in rats orally given 300, 600 and 1200 mg/kg doses of aqueous and ethanolic extracts of the stem bark of K. senegalensis were evaluated in the castor oil induced diarrhea and gastrointestinal motility studies. The phytochemical constituents and acute toxicity test of the extracts...
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...Good Things to Know about Worm Castings This is an overview of benefits known about worm castings. The overview is generated from information disseminated by such major Universities as Ohio State, Cornell University and UC Davis. This information also comes from other institutions and companies such as the California Vermiculture, LLC and the Australia SIRO. Their research goal was to establish the value of worm castings. Their test results have shown improved flower size, bloom quantity, quality, and color. Fruit and vegetable tests results have shown yield improvements from 15% to 57% as well as improvements in taste and appearance. The information you need to know and consider is presented below in a list format, which we believe is easier and quicker to reference and grasp. Some of the discoveries made will surprise you. Most people will be amazed by the following information if they have no prior exposure to the absolute beauty and completeness of the worm casting. Basic points to start: Worm Castings are the worm feces. The castings are made up of live biological organisms. The organisms include fungi, actinomycetes , beneficial bacteria, pseudomonads , plant growth regulators, yeasts, molds, trace elements and the famous N-P-K ratings used by fertilizers, to reference the Nitrogen, Phosphorus and K (which is the chemical symbol for Potassium) quantities promoted by the fertilizer industry (more on this below). Worm Castings are harmless to plants (in any dosage)...
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...ARTICLE IN PRESS Bioresource Technology xxx (2004) xxx–xxx Review paper Enhancement of biogas production from solid substrates using different techniques––a review Yadvika a, Santosh a b a,* , T.R. Sreekrishnan b, Sangeeta Kohli c, Vineet Rana a Centre for Rural Development & Technology, I.I.T., Delhi 1100016, India Department for Biochemical Engineering & Biotechnology, I.I.T., Delhi 1100016, India c Department of Mechanical Engineering, I.I.T., Delhi 1100016, India Received 31 July 2003; received in revised form 18 August 2003 Abstract Biogas, a clean and renewable form of energy could very well substitute (especially in the rural sector) for conventional sources of energy (fossil fuels, oil, etc.) which are causing ecological–environmental problems and at the same time depleting at a faster rate. Despite its numerous advantages, the potential of biogas technology could not be fully harnessed or tapped as certain constraints are also associated with it. Most common among these are: the large hydraulic retention time of 30–50 days, low gas production in winter, etc. Therefore, efforts are needed to remove its various limitations so as to popularize this technology in the rural areas. Researchers have tried different techniques to enhance gas production. This paper reviews the various techniques, which could be used to enhance the gas production rate from solid substrates. Ó 2004 Published by Elsevier Ltd. Keywords: Biogas production rate; Additives; Anaerobic filters; HRT...
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...sorption capacity of hazelnut shell and activated carbon obtained from hazelnut shell activated with ZnCl2 Aziz Şencan & Mustafa Karaboyacı & Mehmet Kılıç Received: 26 November 2013 / Accepted: 23 April 2014 # Springer-Verlag Berlin Heidelberg 2014 Abstract This study aimed to determine the Pb+2 adsorption capacities of hazelnut shell and activated carbon obtained from hazelnut shell. It also aimed to determine the effect of ZnCl2 in the activation process. The hazelnut was pyrolyzed at 250 and 700 °C. For determining the capture speed of the adsorbents, the pseudo-first- and second-order kinetic studies were performed. The Freundlich and Langmuir isotherm models were used to determine adsorption equilibrium. The surface characterization of hazelnut shell and activated carbon was determined by Brunauer-Emmett-Teller (BET) analysis and FTIR spectrum. Pb+2 adsorption capacity of obtaining activated carbon was determined by ICP-OES analysis. The raw hazelnut shell’s BET surface area is 5.92 m2/g and the surface area of activated carbons which is pyrolyzed at 250 and 700 °C were determined (270.2 and 686.7 m2/g, respectively. The surface area of hazelnut shell, which pyrolyzed at 700 °C after being activated with ZnCl2, was determined to be 736.49 m2/g. Results show that physical adsorption process is dominant for the activated carbon pyrolysis at 700 °C but the chemical adsorption is dominant for the activated carbon pyrolysis at lower degrees and for...
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...------------------------------------------------- March 2013 APPROVAL SHEET This thesis entitled “Utilization of Characterized Activated Carbon Prepared from Corn Cobs in Sugar Decolorization”, prepared by Dyle Angellowe B. Mapagu, Aurilyn A. Ramirez and Roxanne L. Soriano, in partial fulfilment of the requirements for the degree Bachelor of Science in Chemical Engineering, is hereby recommended for oral examination. Approved by the Tribunal on Oral Examination with a grade of _________. Engr. Ma. Haidee A. Mabborang Member Engr. Monico U. Tenedor Member Engr. Marianne DC. Calica Member Engr. Caesar P. Llapitan Chairman Accepted in partial fulfilment of the requirements for the degree Bachelor of Science in Chemical Engineering. Engr. Ernesto D. Marallag Dean, College of Engineering ACKNOWLEDGEMENT We, the authors, convey our gratefulness and appreciation to the people who have given valuable assistance in the completion of this study. To Engr. Policarpio Mabborang, Jr. for providing a perceptive and logical evaluation of our research, for his corrections and suggestions in the improvement of the study, and for his patience towards us; To Engr. Caesar Llapitan, Engr. Marianne Calica, Engr. Monico Tenedor, and Engr. Ma. Haidee Mabborang, who served as our panelists in the defense, pointed out mistakes and gave good suggestions in revising our thesis; To Engr. Gina Consigna, head of the Feed Laboratory...
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...Department of Clinical Medicine, Alma Mater Studiorum University of Bologna, Via Albertoni 15, 40138 Bologna, Italy 2 S.S.D. Liver Transplant, Department of Clinical Medicine, Alma Mater Studiorum University of Bologna, Via Albertoni 15, 40138 Bologna, Italy Correspondence should be addressed to Paolo Caraceni, paolo.caraceni@unibo.it Received 4 May 2012; Accepted 11 May 2012 Academic Editor: Bruno Nardo Copyright © 2012 Luca Santi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Mushroom poisoning is a relatively rare cause of acute liver failure (ALF). The present paper analyzes the pathogenesis, clinical features, prognostic indicators, and therapeutic strategies of ALF secondary to ingestion of Amanita phalloides, which represents the most common and deadly cause of mushroom poisoning. Liver damage from Amanita phalloides is related to the amanitins, powerful toxins that inhibit RNA polymerase II resulting in a deficient protein synthesis and cell necrosis. After an asymptomatic lag phase, the clinical picture is characterized by gastrointestinal symptoms, followed by the liver and kidney involvement. Amatoxin poisoning may progress into ALF and eventually death if liver transplantation is not performed. The mortality rate after Amanita phalloides poisoning ranges from 10 to 20%. The management of...
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...You have just witness “bro science” in action. It’s wellintended. It can also be deadly. The difference between 5 grams and 5 micrograms, depending on the substance, can indeed be the difference between life and death. Where should one get such information? From qualified sources, of course. Not from your bro. Want to know about proper dosage? Look in the medical literature and find out what dosages have been shown through experimentation to render the desired effects. Want to know about a proper manufacturing method? Then you need to read technical manuals written by actual engineers. As much as possible, I’ve pointed you to more qualified sources of information than myself throughout this guide. I’ve deliberately left out information about dosages in order to force you to use this as a starting point rather than a definitive resource. At the same time, I’m obviously encouraging DIY experimentation. Allow me to clear up the apparent contradiction. See, I intend for this report to be, among other things, a bit of a shot across the bow of the troubled ship that is the nutritional supplement industry. Here’s a field that can do so much good but that exhibits so little true innovation. When anyone can privatelabel the same substandard supplements everyone else is selling and “win with better marketing,” it doesn’t seem there’s much incentive to raise the bar. The best way to shake up such a market is to educate the buyers. When consumers are aware of...
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...CHAPTER ONE INTRODUCTION 1.1 BACKGROUND OF STUDY Removal of heavy metals such as cadmium, lead, nickel, chromium and copper from aqueous solution is necessary because of the hazardous effect it does on the environment ,thereby making environmental protection important, however waste solutions containing heavy metal elements need treatment systems that can remove these contaminants effectively (Harvey and Chantawong, 2001). Frequent appearance of these metals in waste streams from many industries, including electroplating, metal finishing, metallurgical, tannery, chemical manufacturing, mining and battery manufacturing. This problem has received considerable attention in recent years, primarily due to the concern that those heavy metals in waste streams can be readily adsorbed by marine animals and directly enter the human food chain, thus presenting a high health risk to consumers (Lin et al., 2000). A number of technologies for treating contaminated effluents have been developed over the years. The most important of these techniques include chemical precipitation, filtration, ion- exchange, reverse osmosis and membrane systems. However, all these techniques have their inherent advantages and limitations in application. In the last few years, adsorption has been shown to be an alternative method for removing dissolved metal ions from liquid wastes (Bayat, 2002). The removal of heavy metal ions from industrial wastes using different adsorbents is currently...
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...Research Proposal MSc Part 2 Sem 3 CERTIFICATE This is to certify that Mr. Akshay L. Shettigar has satisfactorily completed his proposal entitled “Biodegradation study of Triphenylmethane dye Crystal Violet by bacterium isolated from textile effluent.” for the year 2014-2015. Signature of the Project guide Signature of the Examiner (Prof. Mrs Radhika Birmole) Date and college Stamp Signature of the H.O.D. Proposal (i) Project Title: Biodegradation study of Triphenylmethane dye Crystal Violet by bacterium isolated from textile effluent. (ii) Introduction: Synthetic dyes are extensively used in textile dyeing, paper printing, colour photography, pharmaceutical, cosmetic and other industries [1]. Over ten thousand different dyes with an annual production of over 7x105 metric tons worldwide are commercially available [2]. 2% of dyes that are produced are discharged directly in aqueous effluent and 10% are subsequently lost during the textile coloration process [3]. Major classes of synthetic dyes include azo, triphenylmethane and anthraquinone dyes, some of them are known to be very toxic and mutagenic to living organism. With the increasing use of wide variety of dyes pollution by dye-waste water is becoming increasingly alarming. Colour removal, in particular, has recently become a major scientific interest. Although several...
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