Bachelor Thesis

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2018 - 201927

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Start date: 2018End date: 2019

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    Centrifugal slurry pump vibration analyze
    (GMIT, 2019) Zolboo Batsaikhan; Ariunbolor Purvee; Odbileg Norovrenchin; Gureragchaa
    This bachelor work is a part of the “Slaked lime system” problem developing project and it is aimed to discover and modify a slurry pump overheat problem occurred at Oyu Tolgoi mine. And it is searched for ways to reduce overheating so that the mining operation could have benefit in numerous ways. The main objective of this work is to analyze vibration of the pumps, as it is experiencing overheating problem in the bearing area. Problem causing roots would be detected and analyzed for optimal solutions. Design modification would be done as one of the result of this research work.
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    Study on Water hammer in Lime Slurry Pipeline
    (GMIT, 2019) Turtsetseg Nanjid; Odbileg Norovrenchin; Ariunbolor Purvee
    The present study is intended to examine the effect of water hammer in milk of lime distribution system at Oyu Tolgoi LLC. The company produces copper concentrate and the flotation process for the copper concentrate production requires slaked lime in order to control pH value. It is essential to prevent system failures because of safety and economic purpose.
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    Effect of different current densities according to the electrowinning of copper leach solution
    (GMIT, 2019) Temuujin Tuvshindelger; M. Bayanmunkh; G. Nomundelger
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    Rehabilitation concept for Nalaikh Mining Licence Area (NMLA): Monitoring of heavy metals in the soils in and around N-MLA.
    (GMIT, 2019) Suvd-Erdene Tsend-Ayush
    This thesis was focused on the investigation of environmental impacts of Nalaikh smallscale coal mining to identification and improve the mitigation measures and geotechnical recommendations for the rehabilitation concepts and further development of environmental management in Nalaikh district.
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    COPPER LEACHING MODELS AND SIMULATION
    (GMIT, 2019) Sukhbaatar.B
    In this thesis we deal with modeling and simulating the copper column leaching. The ore with 2.22% copper grade used in this study. Chalcopyrite (CuF eS2) was main mineral in the test sample. Pyrite (F eS2) was determined as the main gauge mineral of the sample. Three experiments produced with different flow rates which were 5.46l/h/m2 , 10.25l/h/m2 and 16.4l/h/m2 with 3g/l sulfuric acid concentration (H2SO4) on column. Thus experiments were continued for 15 days.
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    Simulation of Coal Preparation Plant by using the Simulation Packages “Limn – The Flowsheet Processor”
    (GMIT, 2019) Shine-Od Mongoljiibuu; Battulga Nasanjargal; Munkhjargal Chimeddorj; Dolgor Daalkhai
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    Identification the types of battery used in Mongolia due to find opportunity of recycling
    (GMIT, 2019) Sergelen Odnyam; M. Bayanmunkh; Ts. Ariuntuya
    This bachelor thesis aimed to determine the types of battery used in Mongolia due to find opportunity of recycling. The 21st century is battery’s era, all of electrical devices related to battery. The battery is modern world necessary portable energy resources. Battery is converted chemical energy to electrical energy.
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    Determination of Deoxygenation Rate Constant for BOD Reaction in Mongolia
    (GMIT, 2019) Sanchirgarav Batzorig; Ariuntuya Tserendor; Daniel Karthe
    The objective of this study was to estimate the deoxygenation rate constant and the ultimate BOD of WWTP effluent in Mongolia. The deoxygenation rate was determined and tested in April, 2019. The Deoxygenation rate was 0.31 /day which is a bit higher than values from other countries. The ultimate BOD was in the range of 92- 115 mg /L. Biological oxygen demand values did not meet the limits recommended by the Mongolian National standard throughout entire study period.
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    Ambient and Outdoor Air Quality Study of Bayankhoshuu Residential district
    (GMIT, 2019) Nomuun Batbaatar; Daniel Karthe; Gunther Stehr
    This study was finished in cooperation with the Clean Air-Ger (GLEAR) project, led by Prof. Dr.-Ing Gunther Stehr, therefore data for this study is collected from the pilot area of GLEAR project which is located at the Baynkhoshuu Residential (Ger) district. This thesis assesses the indoor and outdoor air quality measurements produced by 3 different monitoring devices, DustTrack, Sensedge and online database (OpenAQ), and to reach a scientific evaluation on impacts and effects of ESP using that information.
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    Analysis of Coal Combustion By-Products (CCBs) in Mongolia in Consideration of the Characteristics to be suitable for Backfilling and Securing of abandoned Small Scale Coal Mines
    (GMIT, 2019) Khangai Gerelsukh; Peter Vossen; Martin Knippertz; Baasandorj Myagmarsuren; Temuulen Purevdorj
    The research aimed to evaluate the possibility to use CCBs and industrial wastes for backfilling material for underground mines. Hundreds of thousand tons of CCBs in Mongolia is being landfilled despite its economical and beneficial properties. Following tests and analyses were made to evaluate CCBs and industrial wastes: sieve analysis, SEM analysis, radioactivity detection, moisture content analysis, XRF chemical content analysis, uniaxial compression test, elution test and FTIR analysis. Total of 9 CCBs and 1 electric-arc furnace slag from 7 different location/plant have been evaluated to represent Mongolian CCBs. Backfill mix designs were designed to compare the materials and to choose the best suited material for backfilling purpose.