High-oil emulsified waste lye treatment agent and use process thereof

Abstract

The invention discloses a high-oil emulsified waste lye treatment agent, which comprises an F regulator and a T flocculating agent, wherein the F regulator comprises the following components in percentage by weight: 1-2 percent of dimethylethanolamine, 5-7 percent of exsiccated ammonium alum, 4.8-9.6 percent of magnesium sulfate, 8.6-17.2 percent of aluminum choride, 11.5-23 percent of ferrous sulphate, 1-2 percent of hydrochloric acid and 40.5-67.3 percent of water; and the T flocculating agent comprises the following components in percentage by weight: 20-35 percent of propylene oxide, 15-25 percent of ethylene oxide, 10-15 percent of ammonium chloride and 25-55 percent of water. The treatment agent has unique effects on high-oil emulsified waste lye. The invention provides a process using the high-oil emulsified waste lye treatment agent. The F regulator is added into the high-oil emulsified waste lye by stirring to be uniformly stirred; and the T flocculating agent is added by stirring to be uniformly stirred and stood and delaminated. The process has stability and reliability and convenient management, ensures the stable operation of a sewage disposal field and the discharge of wastewater after reaching standards, and can be used for treating the high-oil emulsified waste lye by slightly reforming the traditional equipment and reduce the treatment cost.

Description

technical field [0001] The invention relates to an industrial high-oil emulsified waste lye treatment agent and a use process, in particular to a high-oil emulsification waste lye treatment agent and a use process. Background technique [0002] High-oil emulsified waste lye is alkaline sewage containing high concentration of sulfide and high concentration of COD produced by the petrochemical industry. This kind of sewage has a strong odor and high toxicity, and at the same time carries impurities such as aldehydes and ketones. After condensation, butter will be formed. If it is discharged directly without treatment, it will block pipes, filters, heat exchangers and other equipment, shortening the reaction cycle. If it is directly discharged, it will seriously pollute the water source. If it is directly discharged to the sewage treatment plant, the biochemical system of the sewage treatment plant will not be able to operate normally, and the sewage discharge rate will be affe...

AI Technical Summary

Problems solved by technology

If it is directly discharged, it will seriously pollute the water source. If it is directly discharged to the sewage treatment plant, the biochemical system of the sewage treatment plant will not be able to operate normally, and the sewage discharge rate will be affected.

[0003] At present, the treatment methods of waste lye mainly include oxidation method, neutralization method, precipitation method, air stripping method and biological method, etc., but these methods have their limitations, and the treatment efficiency of ordinary oxidation method and biological method is not high; combustion method , air stripping, neutralization, etc. to generate SO 2 , SO 3 、H 2 S causes secondary pollution; and the wet air oxidation method is difficult to popularize because of its high operating cost and difficulty in stable operation.

In recent years, both at home and abroad have strengthened the research on the comprehensive management of waste lye treatment technology. A better method is to remove the Na in the waste lye 2 CO 3 and Na 2 S is regenerated into NaOH, and then part of it is reused, and part of it is discharged, but the content of organic matter (COD) in the discharged part is high, and the problem of poor biodegradability cannot be solved.

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