Preparation technology of efficient polymeric aluminum chloride for wastewater treatment

Abstract

The invention relates to a preparation technology of efficient polymeric aluminum chloride for wastewater treatment. The preparation technology is mainly technologically characterized by comprising the following steps: with hydrochloric acid, aluminum hydroxide and a polymerization regulator as main raw materials, producing a liquid solution by a high-temperature, low-pressure and alkaline adjustment two step method; and producing powdery solid by a centrifuging or pressure spray drying and curing environment-friendly technology. The preparation technology disclosed by the invention is advanced in process, high in production efficiency, fast in purification speed, good in treatment effect, wide in application field, low in treatment cost, energy-saving and environment-friendly, and has important application and popularization values by adjusting the raw material ratio in production.

Description

technical field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a process for preparing high-efficiency polyaluminum chloride for wastewater treatment. Background technique

[0002] In recent years, with the development of society and economy, the demand for industrial and agricultural water has increased sharply, and the problems of water resource waste and water resource pollution have become increasingly serious, making the problem of water resource shortage in my country more prominent. The cut-off of the Yellow River, the decline of the groundwater level, and the aggravation of water system pollution have already warned us that we must pay sufficient attention to the problems of water resources and water pollution in our country. Otherwise, it will seriously restrict the sustainable development of our country's social economy. For this reason, the State Council's "Decision on Several Issues Concerning Environmental Protecti...