Method of dechlorinating organic chloride with metal enhanced by cationic surface active agent

Abstract

The invention disclosed a cationic surfactant reinforced metal reduction method for dechlorination of organic chlorides. Said method includes impregnating the metal reductant in the cationic surfactant solution at least one hour, and then adding the metal reductant and organic chlorides-bearing water to be treated into a reactor and carrying out a reaction, wherein the cationic surfactant concentration is the critical micelle concentration. The invention method uses zero-valent metal as the reductant, which is cheap and easy to get, and has no secondary pollution or heavy-metal contamination, and no adverse effect to wastewater treatment. The method has the advantages of simplicity and low cost, and can be operated at room temperature and atmospheric pressure. The conditions for wastewater treatment process are mild. The treating device is simple, easy, and stable.

Description

technical field

[0001] The invention relates to the technical field of water pollution control and treatment, in particular to a method for cationic surfactants to enhance metal reduction of organic chlorides in wastewater. Background technique

[0002] Organic chlorides include chlorinated aliphatic hydrocarbons, chlorinated aromatic hydrocarbons and other chlorine-containing organic compounds, and organic chlorides are widely used in industry. Chlorine-containing organic substances frequently used in industry mainly include methyl chloride, vinyl chloride, ethyl chloride, etc., which are often used as solvents for degreasing, cleaning, and extraction due to their high solubility, low flammability, low explosion, and chemical safety. Herbicides and insecticides used in agriculture are all organic chlorides, such as chlorophenols and chlorobenzenes. In this way, with the development of the chemical industry, organic chlorides and their intermediate products are discharged i...