| abstract |
The invention discloses a new process for reducing cycloazinone wastewater, which includes four steps. First, the cycloazinone wastewater is roughly treated by an iron-carbon micro-electrolysis-Fenton oxidation combined process to remove large particles of COD and other organic pollutants, Then use microbial adsorption particles to remove small molecular organic pollutants, and finally carry out vacuum distillation to remove dimethylamine hydrochloride, guanidine and other organic impurities in the wastewater, and then use the different solubility of dimethylamine hydrochloride in organic matter to make the dimethylamine hydrochloride. Its precipitation, achieves the purpose of layering dimethylammonium hydrochloride and organic impurities, and finally freeze-drying dimethylammonium hydrochloride to obtain high-purity dimethylammonium hydrochloride, the present invention not only purifies the cycloazinone wastewater , high-purity dimethylammonium hydrochloride is also recovered, and the wastewater can be recycled after purification, and dimethylammonium hydrochloride can be reused as a production raw material, which saves costs, is efficient and environmentally friendly. |