PENGARUH SIFAT MEKANIK DAN STRUKTUR MIKRO PADA LOGAM YANG MENGALAMI NORMALIZI…

IIeat treatment is a process in which a metal experiencecl a warming that aims to harden or soften the metal. The heat treatment process consists of normalizing, quenching, anealing and tampering. The heat treatment process used to obtain better material than the material before being subjected to heat. The heat treatment process used in this research is the use of heat treatment process of nor…

PROYEKSI PRODUKSI LOGAM DAN INVENTORI TAHUN 2013 DI PELEBURAN PT. TAMBANG TIM…

Proses pertambangan timah secara umum terdiri dari penambangan, pengolahan mineral (mineral processing), peleburan, dan pemurnian. Salah satufaktor yang mendukung keberhasilan dalam memproduksi logam timah adalah peleburan. Oleh karena itu penting untuk mengetahui proyeksi mengenai produksi logam di tahun 2013 dengan memperhitungkan material balance dan proyeksi produksi bijih timah pada tahun …

ANALISIS KANDUNGAN LOGAM KROMIUM (Cr) PADA TANAH SAWAH IRIGASI TEKNIS DI DESA…

The contamination of rice fields can be caused by several factors, including the presence of heavy metals such as chromium (Cr) in the soil. Chromium (Cr) is one of the heavy metals that can lead to environmental pollution. The objectives of this research are (1) to determine the chromium metal content in rice field soil that exceeds the threshold limit, and (2) to examine several chemical prop…

ANALISIS LOGAM BERAT MANGAN PADA AIR DI SUNGAI GASING MENGGUNAKAN METODE SPEK…

River water can contain various heavy metals, one of which is Mn. This research aims to determine the distribution and concentration levels of Mn in Gasing River water using the Atomic Absorption Spectrophotometry (AAS) method. Additionally, it aims to assess the impact of several parameters, namely temperature, depth, flow rate, pH, and dissolved oxygen (DO). The study commenced with water sam…

Pengetahuan Bahan dalam Pengerjaan Logam

Edition

Revisi

ISBN/ISSN

978-979-665-803-9

Collation

vi, 365 hlm.; 25 cm

Series Title

-

Call Number

620.16 Sch p

KANDUNGAN LOGAM BERAT TIMBAL (PB) DAN TEMBAGA (CU) PADA IKAN GLODOK (PERIOTHA…

Sungsang Coastal Waters, South Sumatra is the estuary of the Musi River which has potential for capture fisheries production. The many daily activities that people tend to carry out around the Sungsang Coast of Banyuasin, South Sumatra have the potential to reduce water quality and increase the concentration of heavy metals Pb and Cu. The purpose of this research is to analyze the concentration…

MODIFIKASI ALUMINA SILIKA DENGAN TEMPLATE EDTA SEBAGAI PENGEMBAN LOGAM Ni-Mo …

The preparation of Ni-Mo/Al2O3-SiO2 catalyst can be carried out by using Al2O3-SiO2 as the support that is modified with a variety of templates. The purpose of preparation of Ni-Mo/Al2O3-SiO2 catalyst template EDTA and Al2O3-SiO2 template EDTA to be applied to the hydrocracking process. The catalysts were characterized using XRD, PSA, FTIR, SAA, SEM-EDX, TPD-NH3, as well as analyzing the hydroc…

ANALISIS SEBARAN LOGAM BERAT KROMIUM PADA SEDIMEN SUNGAI GASING MENGGUNAKAN M…

River sediments may contain various heavy metals, one of which is Chromium (Cr). This study aims to determine the distribution by determining the concentration of Chromium (Cr) in gasing river sediments using the Atomic Absorption Spectophotometry (SSA) method and compared with the quality standard of heavy metal Chromium (Cr) in river sediments. Field analysis was conducted on physical paramet…

Teknik Pengecoran dan Perlakuan Panas untuk SMK/ MAK Kelas XII

Edition

-

ISBN/ISSN

978-979-29-6246-8

Collation

x, 182 hlm. ; 25 cm

Series Title

-

Call Number

671 Sur t

PELAPISAN LOGAM

Edition

-

ISBN/ISSN

979-587-199-4

Collation

xvi, 78 hlm. ; 24 cm.

Series Title

-

Call Number

549 Dar p

TEKNIK Pengecoran LOGAM

Edition

-

ISBN/ISSN

978-602-260-030-5

Collation

xiv, 268 hlm. : ilus. ; 23 cm

Series Title

-

Call Number

671 Sur t

Pengerjaan Logam dengan Perkakas Tangan dan Mesin Sederhana

Edition

Revisi

ISBN/ISSN

978-979-665-802-2

Collation

vi, 356 hlm. : ilus. ; 25 cm

Series Title

-

Call Number

669.95 Sch p

KINETIKA DELIGNIFIKASI BATANG PISANG YANG DIBERI PRAPERLAKUAN ALKALINE MICROW…

Banana stem waste is a source of lignocellulose biomass with high cellulose content and abundant availability in Indonesia. In this study will investigate the kinetics of delignification of banana stems given alkaline pretreatment and alkaline microwave-assisted. Banana stem waste is given preliminary treatment with the help of alkaline and microwave alkaline so that lignin levels contained in …

Pengantar untuk Memahami Proses Pengelasan Logam

Edition

-

ISBN/ISSN

979-8433-99-4

Collation

iii,144 hlm.: ilus.; 24 cm

Series Title

-

Call Number

669.028 Son p

PENGARUH PERBEDAAN NILAI VISKOSITAS MEDIA PENDINGIN OLI PADA PERLAKUAN PANAS …

Common brass is an alloy of copper and zinc. Common brass hardness is very important in the world of machinery, with quenching treatment will affect the mechanical properties of common brass. This study aims to determine the effect of the quenching process using oil coolers (viscosity variations) on the mechanical properties (hardness) of common brass metal. The quenching process was carried ou…

PENGARUH PROSES QUENCHING PADA LOGAM ST 37 DENGAN PENAMBAHAN EKSTRAK DAUN PEP…

Quenching is one of the heat treatment techniques used to produce metals with a higher hardness level. This study aims to determine the effect of the addition of papaya leaf extract on the corrosion rate of ST 37 steel and quenching. This research is an experiment. Five specimens to be tested using a quenching process with papaya leaf extract with varying concentrations of 100%, 80%, 60%, 40% a…

TEKNOLOGI KERJA LOGAM

Edition

-

ISBN/ISSN

37-02-003-9

Collation

vii, 129 hlm. ; 20 cm

Series Title

-

Call Number

624.182 Ste t

ABSORPSI LOGAM BERAT Zn DAN Cr MENGGUNAKAN PURUN DANAU (Lepironia articulata …

Open-pit coal mining will encourage the oxidation of sulfide minerals, releasing sulfuric acid, which will drastically lower the pH. This occurrence is known as acid mine drainage. Acid Mine Drainage (AMD) has a low pH value and can easily dissolve heavy metals in water, such as Zn and Cr. Control of acid mine drainage needs to be done either during or after the mining process ends. Acid mine d…

POTENSI RHIZOPHORA APICULATA BLUME.DALAM FITOREMEDIASI LOGAM BERAT PB DAN CU …

The Mangrove Forest Nature Reserve East Coast (CAHBPT) in Jambi Province has functions, one of which is to improve water quality by absorbing dangerous heavy metals such as Pb and Cu which originate from human activities around the waters. This absorption can be done by using plants that can live in extreme conditions such as the Rhizophora apiculata Blume. plant in CAHBPT Jambi. The purpose of…

ANALISIS KANDUNGAN LOGAM BERAT NIKEL (Ni) DAN TIMBAL (Pb) PADA AIR DAN SEDIME…

The purpose of this study was to determine the status of water quality of the Musi River estuary seen from the value of heavy metals in accordance with PPRI No. 22 of 2021. This research was conducted in December 2022, water and sediment samples were carried out at five station points. Heavy metal concentrations were analyzed using SSA. The content of Ni in water range from 0.018 – 0.053 mg/L…

ANALISIS KANDUNGAN LOGAM BERAT Cd DAN Zn DI SEDIMEN MUARA SUNGAI MUSI, KABUPA…

The Musi River estuary is one of several river mouths that empties into the East Coast of Banyuasin, South Sumatra. The Musi River estuary accommodates various components of pollutant that enter through the river flow. The purpose of this study was to analyze and study the quality of the waters of the Musi River estuary based on the concentration of heavy metals Cd and Zn in sediments and to de…

PERBANDINGAN METODE SPEKTROFOTOMETRI VISIBLE DAN POTENSIOMETRI TERHADAP ANALI…

This research compares the methods of iron metal analysis Fe2+ ions using visible spectroscopy and concentration cell potentiometry. The visible spectroscopy method needs to be verified, and the potentiometry method needs to be validated based on ISO 17025:2017, with parameters of linearity, sensitivity, detection limit, quantification limit, accuracy, precision, and measurement uncertainty. Th…

PENGARUH DIMENSI DALAM PEMBUATAN AGREGAT BERBAHAN DASARFLY ASH DENGAN TEKNIK …

This study aims to analyze the influence of dimensions in the manufacture of artificial aggregates made from fly ash using heating techniques. This aggregate is made by combining several other materials through physical and mechanical processes similar to natural aggregates. In this study the materials used for the manufacture of aggregates are fly ash, clay and water. The method used is the he…

PERBANDINGAN METODE KONDUKTOMETRI DAN SPEKTROFOTOMETRI UV-Vis TERHADAP ANALIS…

Human activities such as industrial, agricultural, and household activities around the Musi river can cause contamination of heavy metals into the Musi river body. Iron is a type of heavy metal that can pollute the environment. Therefore, it is necessary to test the iron content in Musi River water as an effort to prevent water pollution. This research aims to compare the conductometric and spe…

PERBANDINGAN METODE KONDUKTOMETRI DAN SPEKTROFOTOMETRI UV-VIS TERHADAP ANALIS…

Contamination of bored well water has a serious impact on the environment and human health. Zinc (II) metal is one of the heavy metals that can contaminate bored well water. Zinc (II) metal ions can be analyzed using conductometric and UV-Vis spectrophotometric methods. This study aims to compare the conductometric method and the UV-Vis spectrophotometric method to the analysis of zinc metal (I…

SPESIASI ION LOGAM Pb2+ dan Pb4+ DI PERAIRAN DANAU TELUK GELAM OGAN KOMERING …

ABSTRACT : This research aims to determine the levels of lead (II) and lead (IV) metal ion species by potentiometric methods using concentration cells and study the distribution of lead (II) and lead (IV) metal ions in the waters of Teluk Gelam Lake. The results showed the linear regression equation for metal ion of lead (II) y = 4.9162x+0.4 while lead (IV) y = 6.1105x+0.88 with R2 values 0.999…

POTENSI BIOCHAR KULIT PISANG LILIN (Musa zebrina Van Hautte) SEBAGAI ADSORBEN…

Textile industry waste is one of the sources of heavy metal pollution resulting from the dyeing and dyeing process. Jumputan fabric waste water contains one heavy metal chromium (Cr) of 1.360 mg/L. Reducing chromium levels can be done by adsorption method using adsorbents from wax banana peels. Wax banana peels contain pectin and cellulose which have the potential to absorb heavy metals. This s…

ANALISIS KEKUATAN BENDING STRUKTUR SANDWICH DENGAN CORE ALUMUNIUM DAN SKIN PL…

Pemanfaatan struktur sandwich alumunium dengan lapisan skin besi telah meningkat pesat di industri Indonesia, terutama dalam manufaktur dan penelitian bahan. Material struktur sandwich menarik perhatian peneliti karena kombinasi kekuatan tinggi dan bobot yang ringan. Tujuan penelitian ini adalah merancang dan merekayasa struktur sandwich dengan core alumunium dan skin plat ASTM A36, serta menga…

PEMBENTUKAN MEMBRAN TIMAH DIOKSIDA (SnO2) DENGAN PENCAMPURAN POLYETHERSULFONE…

Fabrication of Polyethersulfone (PES) membrane by adding Tin Dioxide (SnO2) using the flatsheet method. In this study, the effect of the addition of SnO2 will be analyzed to determine the mechanical properties of the membrane, as well as the performance of water treatment. The PES@ SnO2 membrane was characterized by SEM and the pore size was uniform until the addition of SnO2 reduced the surfac…

 PENGUJIAN KINERJA BATERAI LITHIUM ION BERBASIS BATANG KANGKUNG AIR (IPOMOEA…

A lithium ion battery is a rechargeable battery and moves from the negative to the positive electrode when discharged. In the lithium ion battery component there is an electrode section. This section serves as a place to store energy and a place for chemical reactions to occur. The use of carbon from natural sources such as biological sources and industrial waste has been widely used by previou…