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Найденный: 7 Экземпляр 0.001 sn
Национальный/Международный : Ulusal ✕Кафедра : Çevre Mühendisliği B ... ✕
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Prediction of the formation of low-molecular components, particles, and condensed phases during thermal destruction of oil-contaminated soil

Kubat KEMELOV | Zarlık MAYMEKOV

In this study, thermodynamic modelling of the process of thermal destruction of oil-contaminated soil of Ozenmunaigas JSC, which includes compounds such as carbon, silicon, aluminum, iron, calcium, magnesium, sodium, potassium, chromium, phosphorus, manganese, copper, titanium, molybdenum, nickel, vanadium, and water, was carried out. The physicochemical and thermodynamic parameters of the complex system were calculated at P0.1 MPa, T598-3000 K. The concentration distribution of components, particles, and condensed phases in the gas phase has been established. In the process of thermal destruc ...Более

Статья 2023 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)11 ( 1 ) 36 Просмотры
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Investigation of chemical, sensory, and rheological properties of Kyrgyz ethnic fermented beverage from cereals during cold storage

Canıl İSKAKOVA

Maksym is a Kyrgyz ethnic beverage made from milled cereals such as wheat, barley, or maize, boiled in water, and then fermented using yeast and lactic acid bacteria as a starter culture. The aim of this study was to investigate the changes in the consistency and sensory properties of Maksym after industrial production during refrigerated storage. The acidity of the beverage increases and the total soluble solids decrease after 21 days. The amount of lactic acid bacteria (LAB) and yeast after production were 9.36 and 9.46 log cfu/mL, respectively. After 21 days it is indicated that the amount ...Более

Статья 2023 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)11 ( 1 ) 25 Просмотры
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Environmental pollution size of the Bishkek Solid Waste Landfill and treatment of generated leachate wastewater

Nurzat ŞAYKİYEVA

The disposal of municipal solid wastes (MSW) is one of the important issues today. The MSW is generally disposed of in a landfill. The disintegration of wastes in landfill generates the wastewater known as leachate and it became one of the budding environmental impacts. The landfill leachate seeps into natural ponds next to the Bishkek (Kyrgyzstan) landfill. The MSWs are dumped with an irregular landfill in Bishkek, and it has been observed that this situation creates many environmental pollution problems (air pollution due to the combustion of wastes and generated biogas, due to leakage of le ...Более

Статья 2021 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)9 ( 2 ) 103 Просмотры
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Study on antimony cake as a technogenic raw material for the production of antimony oxides

Zarlık MAYMEKOV

In the process of hydrometallurgical and pyrometallurgical production of antimony at the Kadamzhai antimony plant of the Kyrgyz Republic, large-tonnage waste was generated: tailing sand, matte, slag, off-balance ore, cakes, furnace fragments, and electrolytes in salt warehouses. The waste cake is poorly studied; accordingly, the elemental and phase compositions of antimony cake have not been established. In this regard, it was noted that antimony in the cake occurs in the form of calcium antimonate and antimony hydroxide. The content of antimony in the mine tailings cakes is from 3.53 to 4.4%, ...Более

Статья 2021 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)9 ( 2 ) 89 Просмотры
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The concentration distribution of components and particles in the system: tomato-water-sodium nitrate and assessment of the oxidation-reduction potential at different temperatures

Nurzat ŞAYKİYEVA | Canarbek İZAKOV | Zarlık MAYMEKOV

The paper considers a triple complex system of tomato, water and sodium nitrate. Taking into account the average macronutrient composition and moisture content of field and greenhouse tomatoes, physicochemical modeling of the system was carried out tomato-water-sodium nitrate. The hydrogen index of tomato was determined at various temperatures and it was noted that tomato medium was acidic. It is shown that with an increase in the content of sodium nitrate in the system: tomato - water - sodium nitrate within the temperature range from 278 to 293 K, the hydrogen index of tomato increases, i.e. ...Более

Статья 2020 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)8 ( 1 ) 102 Просмотры
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Synthesis and characterization of carboxymethyl shrimp chitosan (CMSCh) from waste shrimp shell

Mustafa DOLAZ

Chitin, the main component of shellfish such as crab and shrimp, is one of the most used biopolymers after cellulose. Today, although recycling of waste is becoming increasingly important, large quantities of seafood shells such as crab and shrimp are being destroyed around the world without much evaluation. Chitosan, which is non-toxic, biodegradable-biocompatible and has many application advantages compared to chitin, is used in many sectors, especially cosmetics, pharmaceuticals and agriculture, as it shows superior properties compared to other biopolymers in terms of chemical and physical ...Более

Статья 2020 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)8 ( 2 ) 70 Просмотры
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Investigation of rheological behavior of Kyrgyz traditional food Sary mai

Canıl İSKAKOVA

In this study, the rheological properties of shelf-stable and calorie-rich traditional product Sary mai, known as ghee were investigated at various temperatures for the first time. It was found that ghee at 20-30°C reacted as a non-Newtonian pseudoplastic fluid with yield stress value and flow curves fitted to the Herschel-Bulkley model. With increasing the temperature (40-50°C), ghee become more fluidly and Ostwald-De-Waele model was found as the most appropriate to fit the flow curves with correlation coefficient R2 = 0.9985‒0.9999. The effective viscosity of ghee decreased from 2.613 to 0.0 ...Более

Статья 2020 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)8 ( 2 ) 72 Просмотры
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