Design and development of SMPO wastewater three-effect evaporator
The wastewater produced in the SMPO production process is extremely difficult to treat due to its high temperature, high alkalinity, and high chemical oxygen consumption characteristics, which makes it difficult for the bacteria to survive biochemical treatment. However, biochemical methods are currently used to treat SMPO wastewater in China. Regarding the salt-containing industrial wastewater from the SMPO plant, Ruikai Chemical has developed a more concise multi-effect evaporation treatment equipment, which uses evaporation technology to concentrate the wastewater from the styrene/propylene oxide co-production plant, and the concentrated high-salt content Wastewater is treated by incineration, and the distilled water from which salt is removed is sent to biochemical treatment, which solves the problem that salt-containing wastewater cannot be biochemically treated. This set of equipment can not only reduce the cost of SMPO wastewater treatment, but also save land, which is very valuable for chemical plants or other devices.
Some key equipment of the process is shown in the figure, and the details are shown in the table below:
Adopting internal circulation technology to develop an integrated, low-occupancy and low-energy three-effect evaporator for wastewater treatment in a styrene/propylene oxide co-production unit, which not only makes wastewater treatment more energy-efficient, but also ensures wastewater treatment In addition, the use of an integrated three-effect evaporator can not only save land, but also greatly reduce investment and operating costs.
Major customers in recent years:
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