China Aluminum Corporation Guangxi Branch recently completed the "Comprehensive Treatment Research and Application of Thermal Recycled Water in Gas Works" project. Relevant experts believe that the project has the following main technical features and innovations: (1) Using the method of maintaining the circulating water DH=6.0 to 7.5 without adding alkaline neutralizer to effectively inhibit the chemical absorption of hydrogen sulfide gas from the thermal cycle water (2) Combining doping with iron salt compound desulphurizer and gas bar refining 1011 polymer flocculant measures, stabilizing the suspended solids and sulfide indicators of the hot circulating water at low levels; (3) Performing thermal exposure to circulating water Industrial trials of gas desulfurization have a good desulfurization effect.
Experts believe that the two innovative water treatment methods proposed by the project are simple and practical, reducing the cost of water treatment, improving the quality of circulating water in the gas plant and air environment conditions in the plant area, and making environmental protection, cleaner production, occupational health and health for gas production. Positive contribution. The project has good social and economic benefits and is the first in the domestic alumina industry. The comprehensive technology has reached the domestic advanced level.