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INDONESIA
Seminar Nasional Teknik Kimia Kejuangan
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science
Prosiding Seminar Nasional Teknik Kimia Kejuangan adalah media online dari makalah yang telah diseminarkan pada acara Seminar Nasional Teknik Kimia “Kejuangan” (SNTKK). SNTKK merupakan agenda tahunan yang diselenggarakan oleh Program Studi Teknik Kimia FTI UPN ”Veteran” Yogyakarta. Seminar ini merupakan sarana komunikasi bagi para peneliti dari perguruan tinggi, institusi pendidikan, serta lembaga penelitian maupun industri, dalam mengembangkan teknologi kimia untuk pengolahan sumber daya alam Indonesia.
Arjuna Subject : -
Articles 132 Documents
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Search results for , issue "2023: PROSIDING SNTKK 2023" : 132 Documents clear
Limbah Partikel Keramik Platinum dan Kaca Lampu Clear Philips sebagai Additive Semen Pengeboran ditinjau Compressive Strength, Shear Bond Strength, dan Thickening Time Ilcham, Adi; Awlia, Nur Risa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Ceramic and glass particle waste is generated in large quantities as a result of their extensive use in various applications. Inappropriate disposal of the waste can lead to environmental degradation and health hazards. This research utilizes ceramic and glass wastes as drilling cement additives in the oil and gas industry. The objective of this research is to study the effect of adding ceramic and glass waste on the properties of drilling cement, including compressive strength, shear bond strength, and thickening time. With composition percentage ratios of 10%, 20%, 30%, 35%, and 40% by weight of cement, the slurry was poured into 1.2x2 inch cubic molds to test compressive strength and into 1.2x2 inch cylindrical molds to test shear bond strength. The findings of this study indicate that the addition of ceramic and glass waste as a drilling cement additive has a positive effect on compressive strength, shear bond strength, and thickening time and is also effective for use as an alternative additive in drilling cement operations
Pengolahan Limbah Warna DYA Industri Pencelupan Tekstil dengan Teknologi UV / H2O2/ TiO2 Hudaya, Tedi; Tunardi, Stephen Reinaldo; Octaviany, Octaviany
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Textile wastewater often contains non-biodegradable as well as toxic dyes, for example Dianix Yellow Ace (DYA). One possible destructive method of treating such waste treatment is the Advance Oxidation Processes (AOPs), in which the oxidation of organic compounds by potent hydroxyl radicals (● OH) occurs. This research had a novelty of combining UV / H2O2 with UV / TiO2 to study the effect of treatment process’ variables, i.e. [H2O2], [TiO2] and initial pH on the rate of degradation as well as the ratio of BOD / COD until biodegradability threshold was reached.  This research employed a Central Composite Design (CCD) experimental design technique that used factorial design and included center points as well as axial points for better accuracy and understanding of the process. CCD helped create a response surface model for optimization and prediction. The variations were the concentration of H2O2 between 0.01 - 1.00 %w, TiO2 concentrations ranging from 0.80 to 3.00 g.L-1 and initial pH between 1 - 11.  The order and reaction rate constants were also determined by measuring the DYA concentrations using a spectrophotometer.  The optimum condition for DYA degradation was found at pH 3, 0.2% H2O2 and [TiO2] 3 g.L-1 with a pseudo first-order rate constant of 0.0524 min-1.  UV irradiation around 75 minutes resulted in DYA removal of 99%.  The wastewater fell into the biodegradable limit after 60 minutes treatment, with a value of BOD / COD ratio was 0.1029 so that the wastewater became biodegradable to be further treated by much cheaper biological method.
Review: Biomassa Sebagai Adsorbent untuk Pengolahan Logam Berat Pada Air Limbah Industri Veranica, Veranica; Rahayu, Aster; Maryudi, Maryudi
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Industrial wastewater generally contains heavy metalssuch as lead, cadmium, arsenic, nickel, chromium and mercury. Contamination of water with these elements is very dangerous and will pollute the environment, so a suitable waste water treatment is required. This review aims to find out the efficient methods of handling industrial wastewater and the benefits of biomass. Many scientific methods are used in this regard, including adsorption, chemical precipitation, ion exchange, electrochemical treatment, membrane filtration, coagulation and flocculation. However, some of these techniques have drawbacks such aswill produce a large amount of metal sludge, making it difficult to recycle metal, and the formation of toxic sludge or other wastes. Of all these techniques, adsorption with adsorbent biomasshas been widely known because it is an economical, effective and environmentally friendly processing technique, so this method is suitable for treating industrial wastewater. The use of biomass as an adsorbent is intendedto help reduce dependence on fossil raw materials and greenhouse gas emissions that contribute to climate change.
Analisa Kandungan Logam Berat Krom pada Air Sumur Menggunakan Spektrofotometri Triastuti, Warlinda Eka; Agustiani, Elly; Sampurno, Ade Citra Oktaviana Elok; Fitria, Yustia Dwi; Fauziyah, Hanifah; Rahma, Sunia; Rudianto, Anaral Al Ardhi; Amalia, Firda; Damayanti, Avisa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Clean water has many uses in human daily life. The quality of clean water can be seen from three aspects: chemical, physical, and biological. Chromium (VI) or Cr (VI) is one type of heavy metal that can be harmful to human health if it is present in water because it is carcinogenic. This research will determine the level of chromium in well water samples in the Kalipecabean, Keputih, Kapas Madya, Nginden, and Madura areas using UV-Vis spectrophotometry and compare it with the Regulation of the Minister of Health of the Republic of Indonesia Number: 32/MENKES/PER/2017. The initial stage of the experiment includes the preparation of reagent solutions, followed by the calibration of the instrument and the preparation of a standard curve by making standard solutions with concentrations of 1, 2, 3, 4, and 5 ppm. The standard solutions are then tested for their absorbance using a spectrophotometer. The final stage is adding reagents to the water samples and measuring their absorbance using a spectrophotometer. From the results of the study, it was found that the levels of chromium in the well water samples in the Kalipecabean, Keputih, Kapas Madya, Nginden, and Madura areas are 0.004 ppm, 0.005 ppm, 0.005 ppm, 0.002 ppm, and 0.003 ppm, respectively. The experimental results show that the level of chromium contained in the well water is relatively low and still meets the maximum chromium content level in water according to the Regulation of the Minister of Health of the Republic of Indonesia Number: 32/MENKES/PER/2017.
Pengaruh Massa Bioadsorben dari Klobot Jagung Terhadap Penurunan Kandungan Asam Lemak Bebas (FFA), Nilai Peroksida (PV) dan Tingkat Warna Dalam Minyak Sawit Mentah (CPO) Yustinah, Yustinah; Susanty, Susanty; Hendrawati, Tri Yuni; Fithriyah, Nurul Hidayati; Cardosh, Syafira R
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Indonesia as an agricultural country, produces many agricultural products. In addition to agricultural products, agricultural waste is also generated throughout the year. This agricultural waste is still underutilized. One of the efforts to utilize agricultural waste is to process agricultural waste into bioadsorbent. This study aims to study the effect of the mass of bioadsorbent from agricultural waste, namely corn husks on reducing levels of free fatty acids (FFA), peroxide value (PV) and color in crude palm oil (CPO). Clean corn husks are then mashed, after which it is reacted with NaOH to remove the lignin content and neutralized with HCl, so that a bioadsorbent is obtained. Crude palm oil is heated to 80 oC, then mixed with 2 to 10 grams of bioadsorbent according to the variables used. The mixture was stirred at 500 rpm for one hour, and the temperature was maintained at 80 oC. After the adsorption process is complete, the mixture is filtered using a vacuum pump and the filtrate is taken. The filtrate obtained was analyzed for free fatty acid content, peroxide value and color. The research resulted in the more mass of bioadsorbent used, the greater the decrease in free fatty acid levels, peroxide value and color. Using 10 g of bioadsorbent can reduce FFA levels by 41.29%, reduce PV values by 54.96% and reduce color absorbance by 29.06%.
Physical Separation Bahan Aktif Katoda dari Campuran Hasil CrushingBaterai Lithium-Ion Bekas Fadillah, Farika Asna; Perdana, Indra; Purnomo, Chandra Wahyu
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The increasing use of electric vehicles in the coming decades makes the recycling of spent li-ion batteries an important topic to develop. Recycling spent li-ion batteries is necessary to extract valuable materials from the battery cathode. Elutriation is one of the separation method to separate the cathode and anode from the blackmass resulting from crushing by utilizing differences in density and terminal velocity. The Elutriation method is attractive to develop because the separation is done by adjusting the fluid velocity and does not use chemicals. In this study, 4 variations of fluid load will be used, namely 24, 27, 30, and 34 mL/min. The blackmass to be elutriated has a size variation between -38 to +53 micrometers. From the results under the elutriator, the cathode mass obtained for fluid load variations of 24, 27, 30, and 34 mL/min are 0.8366, 0.4333, 0.3907, and 0.1349 grams. The highest cathode recovery at a load of 24 mL/min is 97.21% and the cathode fraction is 0.4091. Furthermore, it can increase the cathode composition in the mixture by 48.98% and reduce the anode composition by 18.54%.
Pemanfaatan Membran Selulosa Bakteri dari Limbah Kulit Pisang sebagai Matriks Masker Antioksidan Wibowo, Claudia Shinta Octa; Hidayat, Muslikhin; Sulistyo, Hary
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Banana skins have several potential applications in the health and beauty industries. Through a fermentation process with the help of Acetobacter xylinum, it produces banana skin bacterial cellulose. It is possible to further process this cellulose into a face mask matrix. Bacterial cellulose has biodegradable properties, a low toxicity value, and a good absorption ability to be applied as a face mask matrix. The addition of serum to the mask matrix aims to focus on the function of the formulated matrix. Methods: filtering the sample; making nata de banana skin with different fermentation times; making a matrix mask; matrix mask characterization; and data analysis. The results of the study showed that the variation of different fermentation times can affect the resulting cellulose products. The optimal fermentation time for producing nata was 10 days, resulting in a thickness of 0.92 cm. Then, the evaluation tensile strength test on the mask matrix revealed the highest value was also a 10-day fermentation variation, 3.000–10.000 kg/cm2. And last, the best test of the release of vitamin C is the 10-day fermentation variation.
Evaluasi Perbandingan Kinerja Attached Culture Bioreaktor dan Hybrid Membran Bioreaktor dalam Mendegradasi Air Limbah Juniawan, Asyhar Sururi; Budhijanto, Wiratni; Marbelia, Lisendra
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Restaurant wastewater is categorized as grey wastewater, which is low strength wastewater with a chemical oxygen demand (COD) concentration of <1,000 mg/L. Therefore, further treatment is necessary before it is discharged into the environment. This study focused on comparing the performance of an attached culture bioreactor and a Hybrid Membrane Bioreactor (HMBR) in degrading restaurant wastewater. The bioreactors used a mesh filter support media of 70-80 μm. The bioreactors were operated with COD feed concentration 600 ppm and HRT 13 hour, with artificial grey water waste feed consisting of sugar, urea, KH2PO4, and tapioca flour. The %COD removal achieved by the attached culture bioreactor and HMBR was 90,48% – 90,95% and 96,28%– 96,79%, the turbidity out achieved by the attached culture bioreactor and HMBR was 57,42 – 60,25NTU and 4,95 – 5,62NTU, MLSS value reached  2,36 – 2,86ppm and 2,36 – 2,86ppm. The conclusion of this research shows that the HMBR has relatively better performance than the attached culture bioreactor
Analisis Pengaruh Variasi Debit Air (QL) dan Debit Gas (QG) terhadap Koefisien Transfer Oksigen (KLa) pada Performa Microbubble Generator Mistoro, Niesa Hanum; Saraswati, Sri Puji; Ahmad, Johan Syafri Mahathir; Wiratni, Wiratni
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

The domestic wastewater treatment plant is usually installed using anaerobic system which has the disadvantage for low conversion process and large volume required. While the effectiveness of aerobic system can be increased by high consumption of energy to supply the oxygen. This study investigates the performance of Microbubble Generator (MBG) for wastewater treatment. The MBG utilizes the hydrodinamics of wastewater flow in the nozzle to provide energy-saving aeration. In this study, the clean water non-steady state test method was selected to find the overall oxygen transfer coefficient (KLa). The experiment was conducted by increasing the concentration of Dissolved Oxygen (DO) using MBG installed with submersible pump (water discharge, QL=80 l/min) and variations of gas discharge (QG) (0.15 l/min and 0.30 l/min). The KLa average results on QL 80 l/min at QG 0.15 l/min showed 0.01996/min and at QG 0.30 l/min showed 0.02564/min. These results indicate that the greater gas discharge (QG) can produce a greater KLa value. This happens because the more air is injected into the water and forms into micro-sized bubbles, the greater the rate of transfer oxygen to the liquid phase.
Batik Industry Wastewater Treatment using Constructed Wetland in Sidoarjo Regency Soeprijanto, Soeprijanto; Anara, Siti Alicia; Azis, Ahmad Rifky
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Batik is one of the industrial potentials of Indonesia, which is experiencing rapid growth in various regions. Besides providing economic benefits, the batik industry also harms the environment. One of the processing methods that can be used as a solution is the Constructed Wetland (CW) method. This method is appropriate because it doesn't require high processing and maintenance costs and the process is simple and uses local resources. The purpose of this study was to measure the efficiency of batik industry wastewater treatment in reducing the pollutant load with the CW system so that the waste discharged into the environment can be declared safe. The parameters studied were COD, and TSS with the Hydraulic Retention Time for 10, 20, and 30 days. The results of the analysis of the initial content obtained a COD value of 1832,02 mg/L and a TSS value of 300 mg/L. Based on the results of the research that has been done, the results obtained for the removal of COD and TSS at 10 days HRT were 92.698% and 83.33%, then HRT 20 days of 94.603% and 86.67%. and then HRT 30 days of 96.138 % and 93.33%.

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