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PERBANDINGAN KONSENTRASI LOGAM BERAT PB DAN CU PADA AIR, SEDIMEN DAN BIVALVIA…
Tanjung Buyut is part of the Musi River Estuary which is passed by various types of community activities. This activity causes the entry of pollutants such as heavy metals Pb and Cu which have the potential to pollute the waters. The purpose of this study was to measure the concentration of heavy metals Pb and Cu in water, sediment and bivalves of Anadara granosa and to analyze the comparison o…
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- xiv, 49 hlm.; ilus.; 29 cm
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- T755272022
ISOLASI SENYAWA METABOLIT SEKUNDER DARI EKSTRAK DAUN TUMBUHAN JAMBU AIR (Syzy…
Water guava (ll. a4renm) bas been errtacted by macemtion method ofdry leaf powder in a rou, in n-hexane, ethyl acetate, and methanol solvents. The separation ofthe compounds was carried out on the ethyl acetate ftaction by means of graviq/ column ckomatography. Purification of the compound was caried out by thh layer chomalognphy test with n-hexane:ethyl acetate (9:1, 7:3, 6:4) as eluent to pro…
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- xv, 39 hlm.; ilus.; 29 cm
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- T705712022
STUDI SEDIAAN KOPI ROBUSTA PROBIOTIK DENGAN BAKTERI PROBIOTIK LACTOBACILLUS B…
Research on the preparation of probiotic robusta coffee with probiotic bacteria Lactobacillus bulgaricus has been carried out. This study aims to make probiotic coffee. Robusta coffee used consists of fermented coffee with Amylomyces rouxii and without fermentation. Probiotic coffee is made by adding Lactobacillus bulgaricus probiotic powder with variations of 1%, 3% and 5% into robusta coffee.…
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- xix, 40 hlm.; ilus.; 29 cm
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- T744752022
ANALISIS SPESIASI ION LOGAM Pb2+ DAN Pb4+ DI PERAIRAN SEKITAR TPA SUKAWINATAN…
Speciation analysis of Pb2+ and Pb4+ metal ions has been carried out in the waters around the Sukawinatan TPA Palembang covering the core zone, namely leachate, pond 1, pond 2, monitoring wells, buffer zone covering rivers and river canals as well as cultivation zones, namely community wells using the potentiometric method of concentration cell system. The purpose of this study was to determine…
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- v, 33 hlm.; ilus.; 29 cm
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- T757662022
FOTODEGRADASI ZAT WARNA CONGO RED MENGGUNAKAN ZnFe2O4 YANG DI-COATING PEG-6000
ZnFe2O4 is a ferrite compound, it is classified as a heterogeneous catalyst and can be used to degrade pollutant pollutants in the environment. The advantage of using ZnFe2O4 as a catalyst is that the catalyst can be easily separated from the solution using a permanent magnet after the photodegradation process. This study aims to synthesize ZnFe2O4 coated with PEG-6000 by coprecipitation method…
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- xvii, 38 hlm.; ilus.; 29 cm
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- T750302022
PENGARUH TEGANGAN DAN LAJU ALIR CO2 TERHADAP KONVERSI CO2 MENJADI METANOL MEN…
CO2 gas can be converted into suitable products, one of which is methanol. In this study, CO2 was converted into methanol by the chemical reduction method using a membrane electrode assembly (MEA) as the reaction center. MEA consists of a Nafion-117 electrolyte membrane and two electrodes in the form of cathode and anode. The cathode uses a Cu2O-ZnO/C catalyst applied to the surface of the gas …
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- xvi, 51 hlm.; ilus.; 29 cm
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- T672302022
PREPARASI ANODA Cu2O/C DAN KATODA Pt/C DENGAN DOPING POLIANILIN SERTA APLIKAS…
Preparation of Cu2O/C and Pt/C catalyst supported on substrate in the form of carbon sheets from gelam bark and carbon vulcan doped with polyaniline using by membrane electrode assembly (MEA) in the direct methanol fuel cell. Carbon sheets and carbon vulcan were mixed with Cu2O/C and Pt/C catalyst inks, polyaniline, PTFE and nafion, then sprayed onto surface of the gas diffusion layer (GDL) to …
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- xvii, 90 hlm.; ilus.; 29 cm
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- T746502022
SINTESIS DAN KARAKTERISASI SENYAWA BASA SCHIFF 2-[(FENILAMINO)METIL]FENOL SER…
Research on the synthesis of Schiff Base and its application as a detecting for heavy metal ion Cadmium in water medium has been successfully carried out. First, the Schiff Base synthesis 2-[(phenylamino)methyl]phenol was perfomed using the reflux synthesis method. The Schiff Base synthesis was used 2-hydroxy benzaldehyde and aniline as a main precursor in ethanol solvent. The synthesized produ…
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- xv, 32 hlm.; ilus.; 29 cm
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- T757842022
PREPARASI TINTA KARBON BINCHOTAN DENGAN OKSIDA LOGAM MANGAN DAN APLIKASINYA P…
The preparation of carbon from binchotan to be catalyst ink with manganese metal oxide and its performance test in direct Methanol Fuel Cell has been done. The preparation of MnO2/C catalyst was done by impregnation method. Carbon dots and carbon vulcan were used as supporting carbon with the ratio 40:60 and 60:40 toward MnO2. MnO2 catalyst, nafion and polytetrafluoroethylene (PTFE) were mixed …
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- xvii, 67 hlm.; ilus.; 29 cm
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- T729452022
STUDI DELIGNIFIKASI PADA TANDAN KOSONG KELAPA SAWIT (TKKS) MENGGUNAKAN ASAM D…
Telah dilakukan penelitian proses delignifikasi dari tandan kosong kelapa sawit (TKKS) menggunakan penambahan asam dan basa yang dikombinasi dengan pemanasan menggunakan autoclave. Proses delignifikasi menggunakan NaOH dengaan variasi konsentrasi 2, 4, 6, 8 dan 10% dan menggunakan H2SO4 dengan variasi konsentrasi 0,5; 1; 1,5; 2; dan 2,5% dengan lama pemanasan menggunakan autoclave selama 0, 5, …
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- xv, 36 hlm.; ill.; tab.; 28 cm.
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- T651642013
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