ANALISIS KANDUNGAN LOGAM BERAT KADMIUM DAN TIMBAL PADA DAUN KELAPA SAWIT DI T…

MIRANTI ADILIA PERMATA. Analysis of the Heavy Metal Content of Cadmium and Lead in Palm Oil Leaves in Peat and Mineral Soil in Palm Oil Plantations, Pampangan District, Ogan Komering Ilir Regency, South Sumatra Province (Supervised by DEDIK BUDIANTA) Indonesia is the largest palm oil producing country in Asia. Palm Oil Plantations always use Fertilizer in the maintenance process so thatFFB prod…

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…

MODELLING AND OPTIMISATION OF MILLING PROCESS ON THIN-WALLED TI64 UNDER CARBO…

This dissertation presents an in-depth investigation into the cryogenic machining performance of thin-walled Ti6Al4V (Ti64) alloy using carbon dioxide (CO₂) as a sustainable cooling medium. The research aims to improve surface quality while minimizing environmental impact by replacing conventional cutting fluids with cryogenic CO₂. Both uncoated and AlCrN-coated carbide end mills were used …

KONSENTRASI LOGAM BERAT MERKURI (Hg) PADA IKAN GULAMAH (Otolithoides pama) YA…

Sungsang’s Waters area is located in Sungsang, Banyuasin II, Banyuasin Regency, South Sumatra is an estuarine waters where most of the people work as fishermen. The many activities of the population cause the influx of heavy metal waste that can accumulate and harm aquatic biota and consumers. Mercury (Hg) that accumulates in fish eaten by humans can cause health problems and can be detected …

ANALISIS KANDUNGAN LOGAM BERAT TIMBAL (Pb) DI LAPIS OLAH TANAH ANDISOL TANAMA…

One of the factors of Andisol soil pollution in tea plantations is the presence of heavy metals (Pb) in the soil. Lead is one type of heavy metal that is not needed by plants because it can disrupt the nutrient cycle in the soil. The purpose ofthis study was to determine the content of heavy metal lead contained in Andisol soil and some soil chemical properties. This research was conducted in J…

PENGARUH INHIBITOR ALAMI DARI KULIT BUAH COKLAT TERHADAP LAJU KOROSI BAJA KAR…

Corrosion in low-carbon steels such as ST42 is a serious problem in structural applications, especially in acidic environments. The use of natural inhibitors such as brown fruit peel (Theobroma cacao L.) offers an environmentally friendly solution. This research uses a pure experimental method. ST42 steel specimens are heated to 750°C and soaked in a solution of brown fruit peel extract for 24…

PENGARUH KOMPOSISI BAHAN PADUAN ALUMINIUM, TEMBAGA, DAN SENG TERHADAP KEKERAS…

Alloyed metals play a crucial role in industry due to their superior mechanical properties compared to pure metals. One commonly used industrial metal is tin (Sn), which, despite its corrosion resistance and low melting point, exhibits relatively low hardness. To enhance its mechanical properties—particularly hardness—alloying with other metals such as aluminum (Al), copper (Cu), and zinc (…

RESISTENSI BAKTERI ENDOFIT AKAR KIAMBANG (Salvinia molesta Mitchell.) TERHADA…

Penambangan batubara merupakan komponen berpengaruh dalam menunjang ketersediaan energi yang umumnya dilakukan secara terbuka (open pit) sehingga terbentuknya air asam tambang. Logam berat yang terkandung di dalam air asam tambang salah satunya berupa unsur besi (Fe). Unsur logam Fe yang melebihi standar baku mutu akan mengancam kebersihan lingkungan dapat membahayakan manusia. Metode alternati…

KANDUNGAN KROMIUM (Cr) PADA TANAH ANDISOL DI PERKEBUNAN TEH (Camellia sinnens…

Pollution by heavy metals is one of the X important causes of decreased soil function and productivity. Cr toxicity affects plant growth and inhibits important metabolic processes. Typically Cr toxicity reduces plant growth by inducing ultrastructural modifications of cell membranes and chloroplasts, causing chlorosis in leaves. damaging cell roots reducing pigment content, disrupting the relat…

ANALISIS TEKNO SOSIO EKONOMI PENGGUNAAN BRIKET BATUBARA PADA SEKTOR INDUSTRI …

Energy source to melt the metal in the metal casting industry typically small kerosene and diesel is now more expensive price. As a resnlt most small foundry industry was forced to be closed because it is required by other energy sources and research of this thesis try to assess other fiiels cheaper for production costs cati be reduced and cati save more energy. Energy costs become quite cheap …

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…