Abstract
Annually, coal-fired power plants in Vietnam discharge hundreds of thousand tons of coal ash. Most of this ash goes into the environment without treatment or any plan for the efficient reuse of this precious resource. There are many reasons for this, such as poor quality of the ash, no suitable and feasible ash treatment technology, a lack of awareness about environmental pollution and resource saving, and inappropriate sanctions and policies. This study analyzed and summarized information and data pertaining to the current status of the production, discharge, and utilization of coal ash from the Cao Ngan Power Plant (CNPP) in Thai Nguyen Province, Vietnam. In addition, the potential for applying advanced emission reduction technologies in order to recycle coal ash for cement production, as well as geographical, socio-economic, and market factors were assessed. This paper reveals the results of a preliminary assessment of carbon-mineralization technologies which seek to achieve the following three goals: (1) effectively disposing of coal ash to protect the environment and local community, (2) contributing to the nationally determined effort to mitigate greenhouse gas emissions which cause climate change, and (3) making value-added products and bringing economic benefits to a sustainable society.
Highlights
Thai Nguyen province in Vietnam is a political and economic center in the northeastern midland and mountainous region of the country
Raw materials supplied to the Cao Ngan Power Plant are mainly from the Khanh Hoa and Nui and the An Khanh commune in Dai Tu district, whereas the Nui Hong coal mine belongs to the Yen
It is important to assess the amount of wastewater generated during the production process, which requires water to cool the system, as well as water in the form of steam, which is condensed after being supplied to the circulatory boiling system
Summary
Thai Nguyen province in Vietnam is a political and economic center in the northeastern midland and mountainous region of the country It occupies an area of 3562.82 km. The Cao Ngan Power Plant has a total area of 13 hectares, located on the relatively flat terrain in. Plant isgeomorphology, gathered commune, which supply raw materials to the power plant) have changed the city’s natural at a waste dump site with a total area of about. Carbonate rock is distributed widely in the province, constituting the major components of the Mo. Dong, Than Sa, Na Mo, Phu Ngu, Cau River, Pia Phuong, Mia Le, Na Quan, Bac Son, Dong Dang, Na Khuat, and the Ha Coi formations, with ages from the Cambrian to the Jurassic.
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