Processing of ash and slag waste
نویسندگان
چکیده
This article is dedicated to the identification of perspective areas for disposal ash and slag waste from thermal power plants, namely generated at TPP-1 in Pavlodar. The composition was considered by methods X-ray fluorescence phase analysis order identify most suitable area their further use. Based on data obtained, it proposed use extraction precious metals, such as aluminum iron, alkaline leaching. paper presents results selection optimal conditions (temperature, alkali concentration, duration process) leaching metals. It found that best iron treatment an environment caustic soda with a concentration 200 g / l temperature 80 °C 3-4 hours. To increase degree extraction, necessary apply repeated solution, consisting sequential fresh solutions 3 stages one hour.
منابع مشابه
Evaluation of Coal Waste Ash and Rice Husk Ash on Properties of Pervious Concrete Pavement
The use of pervious concrete has been significantly considered in recent years. This consideration is due to the properties of pervious concrete in relating to the environmental sustainability that is utilized in the effective management of the runoff from rainfall. Coal extraction and rice husk obtained from milling, produces wastes that have no application and followed by environmental pollut...
متن کاملThe Effect of Slag Types and Melting Rate on Electro-Slag Remelting (ESR) Processing
In this research, the influence of chemical composition of slags and the melting rate on the impurity of commercial grade iron in ESR processing has been investigated.The chemical composition and microstructure studies were evaluated, using spectrophotometer,OMand EDX analyses attached to SEM.The results show that ESR process has successfully reduced the amount and size of inclusions. In some c...
متن کاملVITRIFIED BOTTOM ASH SLAG FROM MUNICIPAL SOLID WASTE INCINERATORS - PHASE RELATIONS OF CaO-SiO2-Na2O OXIDE SYSTEM
Vitrification is considered to be an attractive technology for bottom ash treatment because it destroys the hazardous organics, contributes to immobilization of the heavy metals, and additionally it reduces drastically the volume. The main components of the vitrified bottom ash slag are SiO2 , CaO, Al2 O3 , Fe2 O3 , Na 2 O and MgO, and the compositions have direct effect on the glass formation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ??????? ?????????
سال: 2021
ISSN: ['2313-3627', '2523-4978']
DOI: https://doi.org/10.51301/vest.su.2021.i6.11