Фильтрлер

Тапкан: 9 Даана 0.025 sn

Предметтик рубрикатор : electrocoagulation ✕

Коллекция [1]

Окумуштуулар [5]

БУУнун туруктуу өнүгүүсү [6]

Факультет / Институт [1]

Басылманын түрү [3]

Жарыяланган жылы [4]

Тили [2]

Булагы [7]

Маалымат базалар [7]

Индекс түрү [4]

Индекс түрү 2 [1]

Басмаканасы [6]

Бөлүмү [1]

Улуттук/Эл аралык [1]

Предметтик рубрикатор [27]

Концентрационное распределение молекул и частиц в модельной системе: Fe–NaCl–Na2S–H2SO4–H2O при различных температурах процесса электрокоагуляции

Zarlık MAYMEKOV | Canarbek İZAKOV | Nurzat ŞAYKİYEVA | Mustafa DOLAZ | Mehmet KOBYA

В практических условиях одним из возможных решений проблемы очистки сероводородсодержащих промышленных сточных вод является электрохимическое окисление сульфидов. С учетом этих обстоятельств, в работе рассмотрена модельная система Fe–NaCl–Na2S–H2SO4–H2O, собрана экспериментальная установка и изучен процесс электрокоагуляции в широких пределах изменения температуры (288–308 К) водного раствора сероводорода. Выявлены оптимальные соотношения исходных компонентов в системе. Определены экспериментальные и расчетные водородные показатели раствора (pH). Осуществлено термодинамическое моделирование си ...Дагы

Макала 2023 Mühendislik Fakültesi Теоретические основы химической технологии57 ( 2 ) 109 Көрүүлөр

Removal of arsenic in groundwater from western Anatolia, Turkey using an electrocoagulation reactor with different types of iron anodes

Mehmet KOBYA | Mustafa DOLAZ

Electrocoagulation (EC) is a significantly efficient method for As removal from waters and received considerable attention recently. In this study, the natural groundwater (GW) samples containing As concentrations of GW-1: 538.8 mu g L-1, GW-2: 1132.1 mu g L-1, and GW-3: 52, 000 mu g L-1 were obtained from different provinces and treated by EC process using different iron anodes (plate, ball, and scrap). To achieve drinking water As standard (10 mu g L-1), the operational time, applied current, and As removal optimization for all anode types were studied. At applied current of 0.025 A, the As ...Дагы

Макала 2022 Mühendislik Fakültesi Heliyon8 ( 9 ) 58 Көрүүлөр

Arsenic Removal by Electrocoagulation

Mehmet KOBYA

Because of the toxic impacts on human health, the arsenic (As) limit value in drinking water was decreased from 50 to 10 μg l −1 by the relevant authorities (WHO 1993; US EPA 2001). In this case, the problem of As pollution in natural water resources used for drinking water has grown even more and turned into a global crisis. According to reports in many parts of the world, over about 230 million people appear to be affected by high arsenic concentrations in groundwater. In this case, it turned out that there was a great need for cost-effective and environmentally friendly technologies from dr ...Дагы

Китеп бөлүмү 2022 Mühendislik Fakültesi Arsenic in Plants: Uptake, Consequences and Remediation Techniques 16 Көрүүлөр

Concentration Distribution of Molecules and Other Species in the Model System Fe-NaCl-Na2S-H2SO4-H2O at Various Temperatures of the Electrocoagulation Process

Zarlık MAYMEKOV | Canarbek İZAKOV | Nurzat ŞAYKİYEVA | Mustafa DOLAZ | Mehmet KOBYA

Under practical conditions, one of the possible solutions to the problem of treatment of hydrogen-sulfide-containing industrial wastewater is the electrochemical oxidation of sulfides. In this work, the model system Fe-NaCl-Na2S-H2SO4-H2O is considered, an experimental setup is constructed, and the electrocoagulation process is studied in a wide (288-308 K) range of temperatures of an aqueous solution of hydrogen sulfide. The optimal ratios between the initial components in the system are determined. The experimental and calculated pH of the solution are found. The system is thermodynamically ...Дагы

Макала 2023 Mühendislik Fakültesi Theoretical Foundations of Chemical Engineering57 ( 2 ) 76 Көрүүлөр

Electrochemical Sulfur Removal at Controlled and Uncontrolled pHs with an Iron Anode

Nurzat ŞAYKİYEVA | Mustafa DOLAZ | Zarlık MAYMEKOV | Mehmet KOBYA

In this study, sulfide removal was carried out in the Electrocoagulation process under controlled and uncontrolled pH conditions. Under optimum conditions, electrocoagulation took place in less than 40 minutes at uncontrolled pH and less than 30 minutes at controlled pH to reduce the sulfite concentration of the effluent below 0.5 mg/L. The reaction rate constant and iron-sulfide molar ratio for sulfide removal were 14.09 x 10(-2) min(-1) and 0.97 mol/mol, respectively; under uncontrolled pH conditions, they were 22.88 x 10(-2) and 0.97 mol/mol at controlled pH. The mg sulfide removed per g Fe ...Дагы

Макала 2023 Mühendislik Fakültesi Theoretical Foundations of Chemical Engineering57 ( 6 ) 10 Көрүүлөр

Phosphorous removal from anaerobically digested municipal sludge centrate by an electrocoagulation reactor using metal (Al, Fe and Al-Fe) scrap anodes

Mehmet KOBYA

Phosphates are a major cause of eutrophication and growth of algal blooms in surface waters. The current study investigated phosphorus removal from sludge centrate effluent (SCE) of a municipal wastewater plant by packed-bed electrocoagulation (EC) reactor. Distinctively, iron (Fe), aluminum (Al) and Al-Fe hybrid scrap anodes were used. The influence of initial pHi, applied current and packed anode bed density were evaluated. Phosphorous removal efficiency of 99.99 ?as obtained at applied current of 0.20A with anode bed densities of 0.18 kg Al/m3 (pHi 5.0) and 0.48 kg Fe/m3(pHi 7.0). Optimum o ...Дагы

Макала 2021 Mühendislik Fakültesi Process Safety and Environmental Protection152 71 Көрүүлөр

Treatment of Tannery Wastewater by Chemical Coagulation and Electrocoagulation

Mehmet KOBYA

The purpose of this study was to research the chemical coagulation on wastewater of primary sedimentation basin which belongs to Tanning Industry Wastewater Treatment Plant by using various type chemical substances. Besides, electrocoagulation process was applied on wastewater of primary sedimentation basin and final sedimentation basin. For this purpose, during chemical coagulation experiments, Al-base coagulants (alum and AlCl3) and Fe-base coagulants (Fe2(SO4)3 and FeCl3) were used as coagulated materials. The coagulate dosage and pH range effects to the efficiency of treatment was research ...Дагы

Конференция доклады 2020 Mühendislik Fakültesi 5th Eurasian Waste Management Symposium (EWMS) 3 Көрүүлөр

Cadmium, Cyanide and Cadmium-Cyanide Removal from Wastewater Solutions by Electrocoagulation Process

Mehmet KOBYA

Treatment of cadmium (Cd), cyanide (CN) and cadmium-cyanide (Cd-CN) wastewater solutions by electrocoagulation (EC) using iron electrodes have been investigated in this research. CN and Cd removals at current density of 30 A/m2 and EC time of 50 min from Cd-CN containing wastewaters were 99.70 and 99.52, respectively; and 2.1746 /m3 at operation cost at these EC conditions. EC gives CN removal efficiency of 99.81 and 2.5978 /m3 operation cost for wastewater contaminated only by CN with 30 A/ m2 and 50 min of process time. For wastewaters contaminated only by Cd, 99.8 removal efficiency, with 2 ...Дагы

Макала 2020 Mühendislik Fakültesi 5th Eurasian Waste Management Symposium (EWMS) 2 Көрүүлөр

How does arsenic speciation (arsenite and arsenate) in groundwater affect the performance of an aerated electrocoagulation reactor and human health risk?

Mehmet KOBYA

Arsenic (As) occurrence in water resources has become one of the most critical environmental problems worldwide. The detrimental health impacts on humans have been reported due to the consumption of As-contaminated groundwater resources. Consumption of As-containing water over the long term can cause arsenicosis and chronic effects on human health due to its toxicity. Several treatment processes are available for As removals such as coagulation, ion exchange, adsorption, and membrane technologies but they have various major drawbacks. In the present work, therefore, an aerated electrocoagulati ...Дагы

Макала 2021 Mühendislik Fakültesi Science of The Total Environment808 53 Көрүүлөр