The winner of the competition for processing ash and slag waste at A. Zhakutov CHP-2 was awarded in Almaty. The event took place with the participation of representatives from Almaty city mayor administration, the Environmental Department for Almaty city, the media, “Arka Development’ LLP, and “Almaty Power Plants” JSC (APP).
As a reminder, on June 1, 2023, “APP” JSC announced the results of the competition for the search for scientific and technical projects aimed at processing and/or disposal of ash and slag waste following hydraulic ash removal at Almaty CHP. Seven applications were received from potential participants, thoroughly examined by the competition commission, which included representatives from the city mayor administration, the Environmental Department for Almaty city, technical experts from research institutions, and “APP” JSC. "Arka Development" LLP was selected as the competition's winner by a unanimous vote after the propositions were considered.
The proposed project aims to construct a waste processing complex adjacent to Almaty CHP-2, with an annual processing capacity of 300,000 tons.
The initiative promises to yield four high-value products from ash and slag waste:
- Unburned coal (used as briquetted products for boilers)
- Magnetite (a vital raw material for the metallurgical industry, serving as a filler for strong concretes)
- Microspheres (premium fillers for plastics, gypsum, ceramics, and lightweight cements)
- Aluminosilicate product (a key raw material for advanced construction materials)
The Republic of Kazakhstan's present environmental legislation mandates that by 2030 and 2050, respectively, the share of waste processing should rise to 40% and up to 50%.
By implementing this project, it will be possible to address challenges related to deep processing of the ash and slag waste produced at the Almaty CHP, which will allow for the extraction of up to 99% of their valuable components, the reduction of the area of ash dumps, and finally their entire reclamation.
A Memorandum on future collaboration between “APP” JSC and “Arka Development” LLP was signed during the event. The winner of the competition for the best offer for the processing of ash and slag waste was awarded a certificate worth 1 000 000 tenge by “APP” JSC.