This paper presents a review and analysis of scientific articles and patents addressing the disposal and processing of soda production waste. Examples of methods for reducing the toxicity of sludge, using waste in construction (including road construction), and processing it into chemical compounds are provided. Particular attention is paid to the use of sludge for soil reclamation. The ammonia-soda process (the Solvay process) for producing soda ash is the predominant method worldwide. A significant drawback of this process is the generation of hazardous production waste, which necessitates compliance with environmental requirements and regulations during storage and processing. Russian practices for managing soda production waste lag behind European ones due to low prices for primary natural raw materials, the heterogeneity of waste composition and properties, the need for preliminary waste treatment, and the low level of environmental payments by enterprises for waste disposal. Tightening environmental safety requirements for soda ash production waste and the high cost of maintaining settling ponds are driving the development of processing methods. The choice of processing method depends on the plant᾽s location, energy capacity, and the company᾽s financial condition. The use of sludge in the production of building materials is limited by the presence of chloride ions, small particle size, thixotropic properties of the material, and variability in sludge composition. Road construction is the most promising avenue in terms of disposal volumes and the use of waste without additional treatment. The use of waste for land reclamation requires a selective approach to site selection and additional research. Despite the wide range of possible applications for soda production waste, the problem of its disposal remains pressing. This is due to the volumes of soda production and the resulting waste, as well as the need for financial investment to implement disposal methods