scholarly journals Potensi Limbah Tulang Kambing Sebagai Arang Aktif Yang Teraktivasi Asam Sulfat

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Sari Wardani ◽  
Elvrida Rosa

<p>Bone is one of the wastes result in environmental pollution and public health issues if it is thrown directly into the environment. The aim of this research was to study the characteristics of activated charcoal of activated sulfuric acid goat bone. The process of making activated charcoal of goat bone included two stages of process, herein consisted of first carbonization process of goat bone at temperature of 700  C for 20 minutes to produce goat bone charcoal. The second process is chemical activation by using sulfuric acid activator at various concentrations of 1N, 2N and 3N for<br />24 hours. The results showed that the best activated charcoal characteristic of sulfuric acid was at 3N sulfuric acid concentration, 0.289% moisture content, ash content of 6.4%, absorption capacity of Iod 983 mg / g, volatile matter 15,017, fixed carbon 82.013 and spectra FTIR of activated carbon showed spectra of absorption band at wave number 3546,143 – 3604,135 cm-1 on vibration of group -OH, with intensity 76%. Overall, the results revealed that the quality of activated charcoal of goat bone is<br />still eligible of the values recommended by SNI-06-4253-1996 about the quality of activated charcoal.</p>

2019 ◽  
Vol 12 (1) ◽  
pp. 19
Author(s):  
Loth Botahala ◽  
Yanti Malailak ◽  
Herlin Silvia Maure ◽  
Hagar Karlani

The effectiveness of the absorption of activated rice husk and hazelnut shells on the purification of used cooking oil has been carried out. The aim is to determine the absorption capacity of the active charcoal of rice husk and hazelnut shells to purify used cooking oil. After being physically activated, activated charcoal from rice husk and pecan shells is applied to the purification of used cooking oil. The results show that the quality of hazelnut shell charcoal is better than rice husk after it is applied to purifying used cooking oil.


2021 ◽  
Vol 320 ◽  
pp. 193-197
Author(s):  
Daniela Godina ◽  
Ralfs Pomilovskis ◽  
Kristine Meile ◽  
Nadežda Iljina ◽  
Aivars Zhurinsh

In this study different pathways for obtaining activated carbon with catalytical activity were analysed. Industrially fast pyrolysis is an efficient way of lignocellulosic biomass processing, since in this process various important high value chemicals are obtained. Biochar is obtained as the by-product in fast pyrolysis process from which activated carbon can be acquired with further chemical activation. Different methods for chemical activation of biochar were tested with the obtained activated charcoals being used as a catalyst in esterification reactions to evaluate their potential use as a heterogenic catalyst. Highest catalytical activity was observed when biochar was pre-treated with sulfuric acid at 80 °C for 24 hours. The obtained activated charcoal could be used as a catalyst for up to five times with no noticeable decrease in catalytic activity.


2021 ◽  
Vol 5 (1) ◽  
pp. 62-73
Author(s):  
Turmiya Fathal Adawi ◽  
◽  
Irwan Mahakam Lesmono Aji ◽  
Dwi Sukma Rini ◽  
◽  
...  

Abstract Bambusa blumeana BI. Ex. Schult. F. is a non-timber forest product used as building material by the people of Lombok. The utilization of bamboos leaves their branches as a waste that has not fully utilized. One way to take advantage of this waste is to use it as a raw material to make activated charcoal. The purpose of this study was to determine the effect of variations activation temperature, the concentration of phosphoric acid (H3PO4), as well as interactions between variations of the activation temperature and the concentration of phosphoric acid (H3PO4) on the quality of activated charcoal of B. blumeana branch. This study employed a factorial completely randomized design (RAL) with two (2) factors. The first factor (A) was activation temperature i.e. 600oC (A1), 700oC (A2), and 800oC (A3), meanwhile the second factor (B) used the concentration of phosphoric acid (H3PO4), namely 10% (B1) and 20% (B2). The results showed variations in the activation temperature significantly affected the yield and iodine adsorption. Based on the results, the best treatment was obtained at a temperature of 700oC with an H3PO4 concentration of 10% (A2B1) with the yield value of 76.04%, moisture content of 2.12%, volatile matter content of 32.70%, ash content of 8.15%, fixed carbon content of 59.15%, and sodium adsorption of 599.63 mg/g. Abstrak Bambu duri (Bambusa blumeana BI. Ex. Schult. F.) merupakan hasil hutan bukan kayu yang dimanfaatkan sebagai bahan bangunan oleh masyarakat Lombok. Pemanfaatan bambu tersebut meninggalkan limbah cabang yang belum dimanfaatkan secara maksimal. Salah satu pemanfaatannya adalah menjadi arang aktif. Tujuan penelitian ini adalah untuk mengetahui pengaruh variasi suhu aktivasi, konsentrasi asam fosfat (H3PO4), serta interaksi antara variasi suhu aktivasi dan konsentrasi asam fosfat (H3PO4) terhadap karakteristik arang aktif cabang bambu duri (B. blumeana). Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) faktorial dengan 2 faktor, faktor pertama (A) menggunakan suhu aktivasi yaitu 600oC (A1), 700oC (A2), dan 800oC (A3), sedangkan faktor kedua (B) menggunakan konsentrasi asam fosfat (H3PO4) yaitu 10% (B1) dan 20% (B2). Hasil penelitian ini menunjukkan bahwa variasi suhu aktivasi berpengaruh nyata terhadap nilai rendemen dan daya serap iod. Berdasarkan hasil pengujian, perlakuan terbaik diperoleh pada suhu 700oC dengan konsentrasi H3PO4 10% (A2B1) yang menghasilkan nilai rendemen sebesar 76,04%; kadar air 2,12%; kadar zat terbang 32,70%; kadar abu 8,15%; kadar karbon terikat 59,15%; dan daya serap iod 599,63 mg/g.


Author(s):  
Dody Guntama ◽  
Ika Mahardini ◽  
Regzinta Purnamasari ◽  
Lukman Nulhakim

Avocado seeds are one of the wastes generated from restaurants that serve avocado juice. This avocado seed waste can be used as activated charcoal by carbonization at high temperatures and chemical activation using HCl and H2SO4 activators. The results showed that the optimum concentration of HCl and H2SO4 activator was 5%, which at a concentration of 5% produced the smallest water content values, namely 0.5825% and 0.6763%, the lowest ash content was 0.2993% and 0.2296%, while the adsorption to iodine amounted to 252.2419 mg / g and 279.8959 mg / g. The charcoal from avocado seeds has the potential to absorb chromium metal, which at optimum conditions can absorb 0.1673 mg / L and 0.1535 mg / L.


2020 ◽  
Vol 192 ◽  
pp. 02025
Author(s):  
Elena Vorsina ◽  
Tatiana Moskalenko ◽  
Valery Mikheev ◽  
Mehmet Bilen

The paper presents the results of research for sorbents preparation when combining the processes of chemical modification and steam-gas activation of lignite from the Kharanorsk deposit (Zabaikalsky Krai). The experimental studies were carried out by two ways of activation methods combination: parallel and successive exposure on feedstock. The lignite processed by chemical reagent (KOH) was exposed to steam during the whole period of thermolysis under the parallel action. Under successive exposure, the thermolysis was performed in two stages - first without steam supply, then with steam-gas activation. In the work the optimal parameters of the process of combining the chemical and steam-gas lignite activation methods were determined and the quality of the generated sorbents was studied. The efficiency of combined activation was estimated by comparing the sorption characteristics of the samples with the results obtained during chemical and steam-gas activation as autonomous processes and with the requirements to these characteristics of industrially produced active carbon grades. Combined activation of lignite allowed to increase the value of iodine adsorption activity in comparison with autonomous steam-gas activation by 1.8-2 times, chemical activation - by 2.7-10 %. The obtained values of iodine adsorption activity at combination of chemical modification and steam-gas activation exceed the value of 100 % (1000 mg/g) that meets the requirements to high quality industrially produced active carbons of SKT-0 grade.


1979 ◽  
Vol 15 (11) ◽  
pp. 819-821
Author(s):  
V. T. Sumanov ◽  
S. N. Khadzhiev ◽  
V. I. Stupnikova ◽  
Z. F. Ravdina ◽  
S. I. Fisher

Konversi ◽  
2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Noor Khamidah ◽  
Hairu Suparto ◽  
Ita Oktavianingsih

Peat water is a type of water that does not meet the quality of clean water because it has a cloudy color, smells, tastes and low pH. One of the peat water repair technologies is to use activated charcoal to improve the quality of peat water. Water hyacinth has the potential to be used as activated charcoal because it has high levels of C-organic. Charcoal needs to be activated to open the pores, one of activator materials that can be used is ZnCl2. This study aims to determine the potential of water hyacinth activated charcoal to be used as a peat water biofilter, to determine the usefulness of ZnCl2 as a water hyacinth charcoal activator, and to determine the correct concentration of ZnCl­­2 activator for water hyacinth charcoal activation process. The research was conducted at the Production Laboratory of the Agroecotechnology Department, Animal Nutrition and Food Laboratory, Animal Husbandry Department, Agriculture Faculty, and Water Quality and Hydro-Bioecology Laboratory, Aquatic Resources Management Department, Fisheries and Marine Faculty, Lambung Mangkurat University, Banjarbaru, from December 2020-January 2021. This study used a completely randomly design (CRD) single factor that is difference in the concentration of ZnCl2 activator with 4 experimental units. Activated charcoal of water hyacinth can be used as a peat water biofilter as indicated by the parameters of turbidity, TDS, pH, temperature, taste and smells of water. ZnCl­2 can be used as an activator for charcoal of water hyacinth using the physic-chemical activation method. The correct concentration of activator is ZnCl2 30%.


2019 ◽  
Vol 21 (2) ◽  
pp. 564-580
Author(s):  
Eloiza Rocha Queiroz ◽  
José Falcão Sobrinho

A região Nordeste do Brasil vem sendo alvo de medidas do Estado a mais de um século, na tentativa de solucionar o problema da falta de água em época de secas. O Estado do Ceará, por sua vez, apresenta boa parte de seu território inserido no semiárido brasileiro, uma região caracterizada pelo clima seco, com poucas chuvas e elevada evapotranspiração. A problemática da água existe há bastante tempo, principalmente o acesso em quantidade e qualidade suficientes para atender a população. O presente trabalho tem como tema central a questão dos recursos hídricos, com enfoque no abastecimento humano do município de Cariré, localizado na região noroeste do Ceará. Nosso objetivo consiste em apresentar um panorama de como atualmente a população carireense tem acesso à água potável. A metodologia adotada constitui-se em duas etapas: na primeira, realizamos levantamento de material bibliográfico e a segunda diz respeito a parte prática realizada em saídas a campo. Segundo a ONU, a água é um bem comum e que deve ser de acesso a todos, é um direito humano. Nesta perspectiva, o gerenciamento adequado dos recursos hídricos é essencial para a manutenção da qualidade de vida. Palavras-chave: Recursos Hídricos; Abastecimento Humano; Cariré-Ce. ABSTRACTThe pnortheast region from Brazil has been subject of measures for more than a century in attempts to solve the problems lack of water in dry season. The state of Ceará has a good part of its territorial inserted in Brazilian semiarid, a region characterized by dry climate, short rains and high evapotranspiration. The water issue has existed for a long time, mainly in a sufficient access of quantity and quality to serve the population. Then, this article has as a central theme the water resources focusing on water supply of the Cariré localized at Northeast region from Ceará. Therefore the purpose of the paper is to present a study about how the Carire’s population has had access to potable water currently. The methodology adopted to this research consists of two stages: Firstly it was carried out a survey of bibliographical material and secondly it concerned the practical part carried out in the field trips. In accordance to United nations, water is a commom good and it has to be available to everyone, it is a human rights. In that sense, the proper management of water resources is essential to keep the quality of life.Key-words: Human supply; Water resources; Cariré – Ce. RÉSUMÉLa région du nord-est du Brésil est la cible de mesures prises par l’État depuis plus d’un siècle pour tenter de résoudre le problème de la pénurie d’eau en saison sèche. L’État du Ceará, en revanche, présente une bonne partie de son territoire inséré dans le semi-aride brésilien, région caractérisée par un climat sec, avec peu de pluies et une forte évapotranspiration. Le problème de l'eau existe depuis longtemps, principalement l'accès en quantité et qualité suffisantes pour satisfaire la population. Le travail actuel a pour thème central la question des ressources en eau, en mettant l'accent sur l'approvisionnement humain de la municipalité de Cariré, située dans la région nord-ouest du Ceará. Notre objectif est de présenter un aperçu de la façon dont la population carioca a actuellement accès à l’eau potable. La méthodologie adoptée comporte deux étapes: dans le premier, nous procédons à une enquête sur le matériel bibliographique et le second à la partie pratique réalisée lors des visites sur le terrain. Selon l'ONU, l'eau est un bien commun et doit être accessible à tous, c'est un droit humain. Dans cette perspective, la gestion adéquate des ressources en eau est essentielle au maintien de la qualité de la vie.Mots-clés: Ressources en eau; Approvisionnement humain; Cariré-Ce.


2012 ◽  
Vol 30 (No. 5) ◽  
pp. 474-482 ◽  
Author(s):  
L. Siříšťová ◽  
Š. Přinosilová ◽  
K. Riddellová ◽  
J. Hajšlová ◽  
K. Melzoch

The production technology of high-quality vodka used in Russia involves filtration through activated charcoal. To approach the quality of renowned Russian vodka, one prominent Czech spirit-producing company installed on its production premises a filtration device including a charcoal column, and launched test runs during which different filtration conditions were tested. Samples collected during the test runs were analysed by GC-FID and GC-MS with the aim to compare their composition; sensory analysis was an integral part of the evaluation. The results documented a positive effect of charcoal filtration on the quality of produced vodka, which was not reduced when higher flow rates were applied. &nbsp;


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