Industrial acid wastewater treating agent

Abstract

The invention relates to the technical field of wastewater treating agents, and particularly provides an industrial acid wastewater treating agent. The treating agent is mainly prepared from raw materials as follows: slaked lime, alkaloid, calcium lignosulfonate, a flocculating agent and sodium silicate. Compared with the prior art, the treating agent has the beneficial effects as follows: the prepared flocculant can better improve pH of effluent and has an efficient flocculation function, experiments prove that the prepared flocculant can regulate the pH of acid wastewater with pH being 1-3 to 7-8, produce large flocs with salt, oil, chloride ions or sulfate radicals as well as metal ions and has the characteristic of high produced floc settling speed, meanwhile, the use amount of polyacrylamide can be effectively reduced or removed, and the production process is simple, convenient to use and environmentally friendly.

Description

technical field

[0001] The invention relates to the technical field of wastewater treatment agents, in particular to an industrial acid wastewater treatment agent. Background technique

[0002] At present, some of the wastewater produced in the production process of industrial enterprises is acidic wastewater, which contains salt and oil, and contains a large amount of chloride ions or sulfate radicals and metal ions. It is a typical industrial wastewater containing refractory degradable. If handled properly, it will cause great harm to humans and the environment. In conventional sewage treatment, it is difficult to treat directly. It needs to undergo chemical treatment first, and then carry out biological treatment after acid-base neutralization. There are many dosing points and types of chemicals, and the operation is cumbersome.

[0003] Traditional sewage treatment agents, such as polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, non-ionic, zwitterionic p...