ANALISA SEBARAN LOGAM BERAT BESI (Fe) SERTA STATUS MUTU PERAIRAN PADA SUNGAI …

The research on the distribution of heavy metal iron (Fe) in Gasing River water has been conducted. This research aims to determine the distribution of heavy metal iron (Fe) pollution in Gasing River and the quality status of Gasing River water. This research began with sampling at seven points, including the upstream of Gasing River, Kenten Village Bridge, Gasing Tengah Bridge, Middle of Gasin…

PENGARUH TEMPERATUR PIROLISIS TERHADAP KUALITAS KARBON AKTIF DARI BATUBARA LI…

This study aims to determine the effect of temperature on the quality of activated carbon from lignite coal through the pyrolysis process. Activated carbon is made at a temperature increase rate of 0.5 dergress celcius per second . This test was carried out using temperature variations of 450, 500, 550, and 600 dergress celcius. Activated carbon was tested for quality by measuring water content…

SINTESIS KOMPOSIT MnFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT W…

Research on the synthesis of MnFe2O4/Activated Carbon@ZnO for adsorption and degradation of Congo red dye. Coal-based activated carbon is chemically activated. Synthesis MnFe2O4/Active Carbon and MnFe2O4/Active Carbon@ZnO were synthesized using the coprecipitation method. The composite is a powder that is faded brown in color and is magnetic. The results of the synthesis of MnFe2O4/Activated Ca…

SINTESIS KOMPOSIT NiFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT W…

This research aims to synthesize NiFe2O4/activated carbon@ZnO composite used in the adsorption and degradation process of Congo red dye. The synthesized product was characterized using XRD, VSM and UV-Vis DRS instruments against Congo red dye in various pH, dye concentration, and contact time. The synthesis of the NiFe2O4/activated carbon@ZnO composite was carried out using precipitation method…

SINTESIS KOMPOSIT Fe3O4/KARBON AKTIF@NiO UNTUK ADSORPSI DAN DEGRADASI ZAT WAR…

This research aims to synthesize Fe3O4/activated carbon@NiO composite used in the adsorption and degradation process of Congo red dye. Nanomagnetic Fe3O4 utilized to reduce the band gap value of NiO as well to impart magnetic properties. Activated carbon from bamboo is utilized as an adsorbent in the adsorption process and NiO as a photocatalyst in the degradation process. The Fe3O4/activated c…

PENERAPAN SONIKASI PADA ADSORPSI RHODAMIN B MENGGUNAKAN KARBON AKTIF CANGKANG…

This research uses palm oil shells as raw material for making active carbon. Activated carbon was activated using 10% H3PO4 and modified using Co(OH)2. The obtained pHPZC value is at pH 7, so the adsorption in this study was conducted at pH 8. In this research, adsorption was determined from adsorption kinetics and adsorption isotherms. Based on the results of XRD, FTIR electron microscope and …

SINTESIS KOMPOSIT FE3O4/KARBON AKTIF DARI BAMBU@ZNO UNTUK ADSORPSI DAN DEGRAD…

The rapid development of the textile industry has resulted in an increase in liquid dye waste produced. Congo red dye is widely used in textile production. Congo red has toxic properties so it will cause various diseases if it enters the human body in large quantities. Therefore, it is necessary to process dye liquid waste. In this research, the synthesis of Fe3O4/Activated Carbon@ZnO composite…

UJI KINERJA MEMBRANE ELECTRODE ASSEMBLY (MEA) MENGGUNAKAN KATALIS Pt-BLACK DA…

Performance testing of the membrane electrode assembly (MEA) using Pt-Black and Pt/C catalysts for direct methanol fuel cell (DMFC) on electrolyte membranes with varying methanol concentrations has been carried out. MEA is designed by combining Pt-Black electrodes on the anode side and Pt/C on the cathode side using Nafion 117 (N117) and Nafion 212 (N212) membranes. MEA was characterized using …

SINTESIS KOMPOSIT (BENTONIT-TIO2)-GO UNTUK PENYERAPAN ZAT WARNA METILEN BIRU

This research generates the synthesis of (bentonite-TiO2)-GO composites for the distribution of methylene blue dye. A dye that is often used for textile coloring purposes with various chemical properties, one of which is methylene blue. The dyes that are thrown away will end up as waste. This has the potential to harm human health and threaten aquatic ecosystems. The adsorption method is one th…

ANALISIS PENCEMARAN LOGAM BERAT TEMBAGA DALAM SEDIMEN DI SUNGAI GASING BERDAS…

Heavy metal copper (Cu) in the sediment of Gasing River, Banyuasin, South Sumatra has been studied. The research aims to determine the distribution of copper (Cu) metal and determine the level of copper (Cu) metal pollution in sediments based on the geoaccumulation index. The research began with sediment sampling at six locations in the upstream to downstream of the Gasing River. Sediment sampl…

APLIKASI METODE POTENSIOMETRI SEL KONSENTRASI UNTUK ANALISIS ION SENG (II) DA…

Zinc ion analysis in Sekanak River has been conducted using concentration cell potentiometric method. This method is proven valid because it has a correlation coefficient of 0.9980 linear area in the concentration range of 1x10-5 to 3x10-2 mol/L. The resulting precision was 0.9% with an average recovery value of 93.44%. In addition, the limit of detection (LoD) of the method was 1.03x10-6 mol/L…

APLIKASI METODE POTENSIOMETRI SEL KONSENTRASI UNTUK ANALISIS LOGAM TIMBAL (PB…

Validation of the potentiometric cell concentration method and analysis of lead metal in Sekanak river sediments has been carried out. The aims research to validate the concentration cell potentiometric method in determining lead metal (Pb) in sediments and determine the distribution of lead metal (Pb) in Sekanak river sediments. The concentration cell potentiometric method was proven to be val…

SINTESIS NANOPARTIKEL PERAK (NPAg) MENGGUNAKAN EKSTRAK KULIT BATANG ANTIDESMA…

Silver nanoparticles (AgNPs) are used as an alternative way to overcome antibiotic resistance because silver nanoparticles have antibacterial properties. Therefore, this research aimed to synthesize silver nanoparticles with an environmentally friendly method using bark extract of Sendulang (Antidesma ghaesembilla) and antibacterial activity against Staphylococcus aureus and Escherichia coli. T…

UJI AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL KUNYIT (Curcuma longa) DAN EFEK KOM…

SUMMARY ANTIOXIDANT ACTIVITY TEST OF METHANOL EXTRACT OF TURMERIC (Curcuma longa) AND ITS COMBINATION EFFECTS Herlina: supervised by Dra. Julinar, M.Si. and Dr. Zainal Fanani, M.Si. Chemistry, Faculty of Mathematics and Natural Sciences, University of Sriwijaya xv + 31 pages, 4 figures, 4 tables, 5 appendices Turmeric (Curcuma longa) is one of the medicinal plants from the Zingiberaceae family …

PENGARUH KANDUNGAN Fe DALAM Fe/C TERHADAP SIFAT PRODUK HYDROCRACKING BATUBARA…

Fossil-based fuels such as petroleum remain the primary energy source in Indonesia, particularly in the transportation sector. Continuous economic growth has led to increased consumption of these fuels. Coal is used as an alternative energy source. The purpose of this research is to develop a method for improving the quality of lignite coal through pyrolysis and hydrocracking processes, thereby…

STANDARDISASI EKSTRAK ETANOL TUMBUHAN DAUN PACAR KUKU (Lawsonia Inermis L.)

According to pharmacological studies, henna leaves are reported to have various activities, including antibacterial, antifungal, antitumor, antiproliferative, antiangiogenic, antileishmanial, hepatoprotective anti-irritant, antioxidant, anticarcinogenic, anti-inflammatory, analgesic, antipyretic, and antioxidant. In addition, henna plants are reported to contain phenolic compounds (isoplumbagin…

PENGARUH PENAMBAHAN BIOBASED COOKING AID TERHADAP KUALITAS UNBLEACHED PULP DE…

Wood is the main and most expensive raw material in pulp production; therefore, its processing must be optimized for sustainability. The absorption of cooking liquor into wood chips is crucial to ensure optimal delignification. Improvements can be achieved through an impregnation stage before cooking to ensure even liquor penetration, as well as by using cooking aids that reduce surface tension…

SINTESIS OKSIDA GRAFENA TEREDUKSI DARI SEKAM PADI DAN APLIKASINYA UNTUK ADSOR…

Edition

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ISBN/ISSN

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Collation

xv, 42 hlm.; ilus.; 29 cm

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Call Number

T1598252024

PENGARUH KONSENTRASI ELEKTROLIT NaNO₃ DENGAN PELARUT (DMSO DAN H₂O) TERHA…

This research is motivated by the use of sodium ion batteries as an alternative to lithium ion batteries, as they share similar properties and characteristics but are cheaper, more environmentally friendly, and made from more abundant raw materials. In general, the components of a battery cell consist of electrodes, electrolyte, and separator. The electrodes include a positive electrode (anode)…

DEOKSIGENASI ASAM OLEAT MENJADI BIOAVTUR MENGGUNAKAN KATALIS BENTONIT BERPILA…

The depletion of fossil fuel resources and the increasing environmental crisis caused by greenhouse gas emissions have driven the search for renewable and environmentally friendly alternative fuels. The aviation sector still relies on fossil fuels and produces high greenhouse gas emissions, so it is necessary to develop aviation fuels from renewable sources. Bioavtur is one alternative that can…

PENENTUAN SIFAT ANTIOKSIDAN DAN ANTIBAKTERI DARI EKOENZIM CAMPURAN LIMBAH KUL…

Organic waste is the largest contributing component of the total waste that ends up in landfills. This waste accumulation causes various problems, including being a source of various diseases and a cause of soil and water pollution. The production of eco-enzymes is an effective and efficient solution for managing organic waste by converting it into a multi-purpose liquid through a fermentation …

PATI RESISTEN DAN SIFAT PREBIOTIK Chlorella TERHADAP PERTUMBUHAN BAKTERI Lact…

This study aims to determine the levels of resistant starch, its effectiveness as a prebiotic, and its effect on the growth of L. rhamnosus bacteria as well as to identify the potential antibacterial activity of L. rhamnosus bacteria grown on Chlorella by Now Foods media. The methods used include determining the levels of resistant starch using the multi-enzyme method, testing prebiotic activit…

OPTIMASI ADSORPSI ION Mn MENGGUNAKAN KOMPOSIT CaO/Fe3O4 DENGAN RESPONSE SURFA…

Acid Mine Drainage (AMD) occurs as a result of runoff formed from the oxidation of sulfide minerals that are exposed to atmospheric air and mix with water. AMD is one of the causes of environmental pollution, making its treatment essential to reduce the negative impacts it causes. One of the methods used is the adsorption method. Adsorption is employed because it is a simple and low-cost proces…

PENGARUH PRETREATMENT TKKS MENGGUNAKAN IONIC LIQUIDS DILANJUTKAN HIDROLISIS D…

This study investigated the pretreatment of Oil Palm Empty Fruit Bunches (OPEFB) using ionic liquids (ILs) to understand their impact on reducing sugars produced during hydrolysis. The pretreatment of OPEFB was conducted with imidazolium chloride [IM][Cl] ILs at varying weights of 2.5 g, 5 g, 7.5 g, and 10 g, followed by hydrolysis with 2% dilute sulfuric acid. The lignin, cellulose, and hemice…

EVALUASI HASIL FITOREMEDIASI LOGAM BESI (Fe) DAN MANGAN (Mn) MENGGUNAKAN TANA…

Coal mining activities have had both positive and negative impacts on the surrounding environment. Acid mine drainage (AMD) is a negative impact of the mining process. Acid mine drainage contains heavy metals Fe and Mn which can disrupt aquatic ecosystems. The AMD treatment is carried out by PT Bukit Asam through a Sludge Settling Pond (KPL). The treatment of AMD is divided into two methods, na…

PENENTUAN KINETIKA ENZIM SELULASE DAN APLIKASINYA TERHADAP TANDAN KOSONG KELA…

This study utilizes TKKS, which is rich in cellulose and has the potential to be processed into glucose. The conversion of cellulose into glucose is carried out through enzymatic hydrolysis. The kinetics of hydrolysis is determined using the Michaelis-Menten equation and transformed into the Lineweaver-Burk method to obtain Vmax and Km parameters. The research findings show that enzyme activity…

PENENTUAN KINETIKA ENZIM SELULASE DAN APLIKASINYA TERHADAP TANDAN KOSONG KELA…

This study utilizes TKKS, which is rich in cellulose and has the potential to be processed into glucose. The conversion of cellulose into glucose is carried out through enzymatic hydrolysis. The kinetics of hydrolysis is determined using the Michaelis-Menten equation and transformed into the Lineweaver-Burk method to obtain Vmax and Km parameters. The research findings show that enzyme activity…

PRETREATMENT TANDAN KOSONG KELAPA SAWIT (TKKS) MENGGUNAKAN PELARUT IONIC LIQU…

This study aimed to determine the effect of temperature and heating time on the pretreatment of Oil Palm Empty Fruit Bunches (OPEFB). The pretreatment process was carried out to delignify the OPEFB using ionic liquid in the form of 1-Butyl-3-Methylimidazolium Chloride. Analysis of hemicellulose, cellulose and lignin content using the Chesson method. The optimal condition of the delignification …

KARAKTERISASI DAN UJI AKTIVITAS ANTIBAKTERI DARI KOMBUCHA KOMBINASI DAUN SIRS…

Kombucha is known as a functional drink that contains various vitamins, minerals, enzymes and organic acids. This drink is mostly made from fermented tea and can be combined with other ingredients. This study aimed to produce a combination kombucha of soursop leaves (Annona muricata L.) and mangosteen peel (Garcinia mangostana L.). This study determines the content of secondary metabolite compo…

KARAKTERISASI DAN UJI AKTIVITAS ANTIBAKTERI KOMBUCHA DIKOMBINASI DENGAN BIJI …

Tea can be processed into kombucha through a fermentation process. Kombucha is made by fermenting a solution of black tea, sugar and a kombucha culture called SCOBY (Symbiotic Culture of Bacteria and Yeast). One of the innovations in kombucha processing is the combination with avocado seeds (Persea americana Mill.) and bay leaves (Syzygium polyanthum (Wight.)) in the second fermentation. This s…