Method for Processing Distiller Liquid for Commercial Products

Abstract

Soda ash is widely used in the glass, chemical, metallurgical, petroleum, textile, pulp and paper, food, paint and varnish industries, in the production of various salts, artificial fiber, in the leather industry, in the purification of water and brines. Currently, there are more than 75 soda enterprises in the world, producing 50-65 million tons of soda ash per year. Of the existing methods for producing soda ash, the most widespread (70%) is the ammonia method. Currently, distillation liquid is almost not processed and from the distillation station is first sent to storage tanks (the so-called white seas), and then discharged into water bodies, which leads to their pollution and salting. In the JV LLC Kungrad Soda Plant of the Republic of Uzbekistan, the distiller liquid after the distillation process in the ADCF (Absorption Distillation Carbonization Filtration) workshop of the I and II stages of soda ash production is discharged into a sludge storage tank for liquid waste. The volume of discharged distiller liquid is 9.08×10 m3per 1 ton of finished product (this amounts to 5448-5493.4 m3 per day, more than 1.8 million m3 per year).