Intensification of the Wastewater Treatment Process of a Bitumen Plant with the Production of Recycled Water

Abstract

The increasing demand for water with the industrialisation of the world is becoming a major problem as there is a water shortage all over the earth. Therefore, the water problem is one of the important problems that need to be effectively solved. This paper presents the results of research on wastewater treatment of bitumen production in the Mangystau region, which after physical and chemical treatment methods is sent to natural evaporation fields. As a result of research work, a method of wastewater treatment of bitumen plant was developed, which includes two stages: distillation of water on the solar plant and ozonation in order to oxidize volatile organic matter. Distillation to obtain primary treated water of 70-75% volume was carried out at 33-37 ℃ ambient temperature and 15-30 kPa rarefaction, at the same time COD of water was reduced by 68%.

Evaluation of Efficiency of a Finned Corrugation Basin in Inclined Basin-Type Solar Stills in Regulating the Water Supply of the CaspiCement Plant

“…For efficient use of the solar energy, the angle of both slope inclination and the sides of the finned corrugation basin-2 to the horizon was 43 • , which corresponds to the angle of region latitude corresponding to 43 • 49 ′ N. The presence of a 2-slope glass cover (3) above the upper basin-2 (position 4) and above the lower basin-1 (position 5) prevents the inner surface of the cover 2 from condensing, and facilitates partial incoming solar radiation of the basin-1. A "thermal insulation", e.g., air gap, is formed by the virtue of the second cover (3).…”

“…A silicon pyranometer SP-Lite (manufactured by Kipp & Zonen, Delft, The Netherlands) measured the solar radiation flux density [26].…”

“…2. The heat balance equation for the water of still basin-2 and basin-1 is formulated as the equation in [26]: dT w(b,1) dt + q c.w(b.2)−g(ss) + q c.w(b.1)−g(ss) q c.g(ss)−a…”

“…Refs. [3,4] propose methods of waste and sea water desalination for arid regions lacking fresh water. Sangeetha A et al [5] report that in coastal marine areas, water is abundant but not suitable for drinking.…”

Study of the Ecotoxicity of Oil-Containing Wastewater Treated in the Helio Installation by Biotesting Method

“…Wastewater treatment is carried out using a green energy-based approach. An environmentally effective method of water purification using solar energy that does not require reagents has been developed [Serikbayeva et al, 2023].…”