Pemanfaatan Abu Kerak Boiler Hasil Pembakaran Limbah Kelapa Sawit Sebagai Pengganti Parsial Pasir pada Pembuatan Beton

Prianti, Epi; Malino, Mariana Bara’allo; Lapanporo, Boni Pahlanop

doi:10.26418/positron.v5i1.9744

Cited by 9 publications

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“…Rice husk ash is a waste material from rice that has special properties, containing chemical compounds that can be pozzolanic, namely silica (SiO2) [8]. The most common value of the silica content of husk ash is 94-96% and if the value is close to or below 90% it may be caused by husk samples that have been contaminated with other substances with low silica content so that proper rice husk waste treatment techniques are needed, namely by treating rice husk into synthetic zeolite [9], [10], [11].…”

Section: Introductionmentioning

confidence: 99%

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Utilization of Fly Ash and Rice Husk as Chromium Metal Adsorbent in Batik Waste

Oktavianty

Sunardi

Amri

2023

CHEMICA: Jurnal Teknik Kimia

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Fly ash boiler as a waste of palm oil mill containing 63.4% of silica (SiO2). Rice husk ash is a waste material from rice that has special properties, also containing about 94-96% of silica (SiO2). Both of these wastes contain silica which can be used as an adsorbent. This study aims to produce adsorbents from fly ash boilers for palm oil mills and rice husk ash as adsorbents for batik waste. The research design used was Complete Block Design with 2 factors, namely the ratio of rice husk ash mass to fly ash boiler with 3 levels, namely A1 (25%:75%), A2 (50%:50%), A3 (75%:25%), and the concentration factor of HCl with 3 levels, namely B1 (1M); B2 (2M), B3 (3M), which is done 2 times repetition. The experimental stages include boiler fly ash pretreatment, rice husk ash pretreatment, synthesis and activation of adsorbents and adsorption tests on batik wastewater. Furthermore, analysis of COD, TSS and Chromium was carried out. The results showed that the A3B2 sample provided optimal adsorption capacity for the analysis of COD, TSS and Chromium metal with values of 57.62 mg/L, 1.43 mg/L and 3.24 ppm, respectively, where there was a decrease in COD of 74%, a decrease in TSS of 97.56% and a decrease in Chromium metal ion of 80.43%. This is due to the use of more rice husk ash with the use of HCl solution as an activator can increase the silica active group on the adsorbent thereby increasing the surface area of the adsorbent, where the surface area of the A3B2 sample is 118.24 m 2 /g.This is an open access article under the CC-BY-SA license.

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Section: Introductionmentioning

confidence: 99%

“…Chromium metal is a chemical that is persistent, bioaccumulative, and highly toxic and cannot be decomposed in the environment and eventually accumulates in the human body through the food chain. As a heavy metal, chromium is a metal that has high toxicity [12].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Fly Ash and Rice Husk as Chromium Metal Adsorbent in Batik Waste

Oktavianty

Sunardi

Amri

2023

CHEMICA: Jurnal Teknik Kimia

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“…By utilizing fly ash, it can have a good effect on the environment because it can reduce the buildup of fly ash waste, so that one alternative that can be done from the use of fly ash is to mix concrete with High Volume Fly Ash technology [3]. According to [4] ash from oil palm shell boilers has chemical elements of SiO2 as much as 29.9%, Al2O3 as much as 1.9% and CaO 26.9%. With the content of these compounds, the ash of the palm shell boiler slag can be said to have pozzolanic properties that allow it to be used as a filler in the manufacture of normal concrete.…”

Section: Introductionmentioning

confidence: 99%

Analysis of The Mechanical Properties of Concrete Based on Fly Ash and Palm Oil Clinkers

Opirina

Azwanda

Febrianto

2021

Int. J. Eng. Scie. and Inform. Technology.

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Concrete is the result of a mixture of cement, aggregate and water. Under certain conditions, the concrete mixture can be added with additives and admixture to get the concrete as needed. Cement is the most important material in the manufacture of conventional concrete. When cement is produced, the same amount of CO2 will also be generated as a side effect and pollute the atmosphere. Fly ash as an alternative to cement will be introduced as an alternative concrete material to reduce the use of cement in the concrete mix. In addition to the use of charcoal fly ash as a partial substitute for cement, this study also uses palm oil clinkers as a substitute for fine aggregate as much as 20%. This replacement material is an industrial waste which has the main content of silica and alumina which is similar to the main material for forming concrete. In addition, the use of these two materials also aims to reduce the exploration of the use of natural materials. This research introduces 3 kinds of concrete composition. The grouping is based on the ratio of fly ash and cement used, namely (60%:40%), (70%:30%) and (80%:20%). The test object used is a concrete cylinder with a diameter of 150 mm and a height of 300 mm. Tests were carried out at the age of 28 days of concrete. The compressive strength test showed that the best concrete was produced from the combination of the addition of 60% fly ash of coal aged 28 days, which was 4.21 MPa.

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“…Abu layang sebagai adsorben memiliki kemampuan yang cukup baik karena kandungannya berupa SiO2 31,45 %, dan CaO 15,2% dan Al 2 O 3 sebanyak 1,6% (Prianti, Malino and Lapanporo, 2015). Potensi abu layang tersebut dapat dimanfaatkan kembali menjadi produk baru yang mempunyai nilai ekonomis yang cukup baik.…”

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Pengaruh Jenis Aktivator Adsorben Abu Boiler Pabrik Kelapa Sawit Terhadap Mutu Minyak Sawit Mentah

Rangkuti

Purwanto

Pohan

2021

JTEP-L

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Palm oil mill boiler ash is one of the substances that can be used as an adsorbent. The adsorbent can absorb certain components of a fluid phase, which before being applied needs to be activated using chemicals so that the effectiveness of the absorption is increasing. The use of adsorbents in CPO is quite effective in maintaining its quality. Several previous studies have studied the application of adsorbents in maintaining the quality of CPO. The purpose of the study was to utilize palm oil mill boiler ash as an adsorbent of several types of activators and to determine the effect of effective activator types in application to the quality of CPO oil. This study used a non-factorial completely randomized design with adsorbent activation treatment using H3PO4 and NaCl with a concentration of 10% and soaked for 24 hours. There are 3 parameters observed in the adsorbent application to CPO, namely free fatty acids, water content, and dirt content. The results showed that the adsorbent activated with H3PO4 was an effective adsorbent with a decrease in its free fatty acids up to 0.43%, water content decreased to 0.07%, but an increase in CPO impurities content of 0.24%. While the adsorbent activated using NaCl showed free fatty acids 0.22%, water content decreased by 0.03% and dirt content also increased by 0.24%. Keywords: adsorbent activator, crude palm oil, boiler ash, H3po4, Nacl

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Pemanfaatan Abu Kerak Boiler Hasil Pembakaran Limbah Kelapa Sawit Sebagai Pengganti Parsial Pasir pada Pembuatan Beton

Cited by 9 publications

References 0 publications

Utilization of Fly Ash and Rice Husk as Chromium Metal Adsorbent in Batik Waste

Utilization of Fly Ash and Rice Husk as Chromium Metal Adsorbent in Batik Waste

Analysis of The Mechanical Properties of Concrete Based on Fly Ash and Palm Oil Clinkers

Pengaruh Jenis Aktivator Adsorben Abu Boiler Pabrik Kelapa Sawit Terhadap Mutu Minyak Sawit Mentah

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