Equipment and method for treating severe sewage by using high pressure burning and evaporation in water

Abstract

The invention discloses equipment and a method for treating severe sewage by using high pressure burning and evaporation in water, belonging to the field of sewage treatment technology which has the advantages of energy saving and emission reduction and is favorable for environmental protection. To effectively overcome the problem of treatment of severe sewage in the fields of petroleum, chemicals, the nuclear industry, smelting and the like and to realize comprehensive control of high viscosity, high brine and high organics wastewater, the invention provides an evaporator for condensing sewage by using high pressure burning and evaporation in water. According the method in the invention, a gas or liquid fuel is used as a source of energy, spray combustion of the fuel and air is formed ina combustion chamber, flames are directly jetted into sewage by using the combustion cabin technology; therefore, high efficiency heat exchange and evaporation of sewage are realized, an obtained concentrate is discharged in the form of slurry, and zero discharge of sewage is basically achieved; high temperature high pressure steam and exhaust gas can be reused. Evaporation equipment provided in the invention has high heat exchange efficiency and a high heat utilization rate; investment for the equipment is small; it is convenient to operate and maintain the equipment; and the complete equipment can realize high efficiency treatment of severe sewage.

Description

technical field [0001] The invention relates to a device and method for treating heavy sewage based on incineration and evaporation in high-pressure water, belonging to the technical field of sewage treatment. The device produces high-temperature and high-pressure steam and waste gas, which can be reused. Background technique [0002] The treatment of high-concentration and high-viscosity organic heavy wastewater has always been a difficult problem in the fields of petroleum, chemical industry, and nuclear industry. Wastewater treatment is under increasing pressure. If the wastewater cannot be treated effectively in a timely manner, it will bring great obstacles to industrial and agricultural production, and will seriously affect the environment and health problems on which people live. The traditional distillation method and membrane method have their application limitations, and it is urgent to discover new technologies for treating heavy sewage. The submerged combustion...

AI Technical Summary

Problems solved by technology

If the wastewater cannot be treated effectively in a timely manner, it will bring great obstacles to industrial and agricultural production, and will seriously affect the environment and health problems on which people live.

Images