The three-effect evaporation equipment of ammonium sulfate waste liquid of monosodium glutamate factory, the editor of Kang Jinghui evaporator will talk about the three-effect evaporation equipment of ammonium sulfate waste liquid of monosodium glutamate factory.
1. Characteristics of monosodium glutamate plant wastewater
A large amount of wastewater produced in the production process of monosodium glutamate has the characteristics of "five highs and one low", that is, high COD, high BOD, high bacterial content, high sulfate content, high ammonia content and low pH value, which is a kind of industrial wastewater that is very difficult to treat, which not only seriously pollutes the natural environment, but also restricts the development of monosodium glutamate industry.
Therefore, according to the characteristics of monosodium glutamate wastewater, practical and effective measures must be taken to comprehensively treat it. While reducing the pollution caused by wastewater to the environment, ammonium sulfate, bacteria, protein, etc. in wastewater are recovered to achieve certain environmental and economic benefits.
2. Ammonium sulfate waste liquid treatment process of monosodium glutamate plant
There are many ways to treat monosodium glutamate wastewater, including the comprehensive utilization technology of the mother liquor after glutamic acid extraction, and the high-concentration monosodium glutamate wastewater is made into bacterial protein feed after heating, flocculation and precipitation, filtration and drying;
There are also methods such as the full concentration of wastewater after the production of feed yeast from monosodium glutamate wastewater, which also belongs to the idea of clean technology.
The physical treatment method is mainly used as a pretreatment in the treatment of monosodium glutamate wastewater to create conditions for subsequent treatment. Sometimes it can also be used as the main process of treatment, such as evaporation concentration method, membrane separation process, etc.
3. Ammonium sulfate waste liquid evaporation equipment of monosodium glutamate plant
After the wastewater generated in the production process of a monosodium glutamate factory in Liaoning Province is treated with flocculation, precipitation and adsorption, it also contains a large amount of ammonia nitrogen, sulfate and other substances.
In order to discharge the wastewater up to the standard and recover the useful ammonium sulfate, Kang Jinghui designed the evaporation process of the ammonium sulfate waste liquid of the monosodium glutamate plant from the perspective of evaporation, determined the conditions of evaporation operation, the type of evaporator and the evaporation operation process, carried out process calculations, and determined the equipment selection of the evaporator.
To thoroughly control the pollution caused by monosodium glutamate wastewater, cleaner production and comprehensive utilization are the trend of development. On the one hand, it is necessary to improve the status quo of monosodium glutamate production technology, actively explore and study new processes and new methods, vigorously promote cleaner production, and curb the generation of pollution from the source; on the other hand, the monosodium glutamate wastewater must be treated and utilized in combination, and the useful substances in the wastewater must be extracted as much as possible to achieve a double harvest of economic and environmental benefits.
In the treatment of monosodium glutamate wastewater, it is necessary to jointly adopt physical, chemical and biological methods according to the production process, the water quality and quantity of wastewater, the local environment and the recycling situation, and optimize the combination to achieve the comprehensive treatment of monosodium glutamate wastewater.