Views: 5 Author: Xicheng EP LTD Publish Time: 2022-10-26 Origin: Xicheng EP LTD
Some problems existing in the waste gas treatment of the pharmaceutical and chemical industry and the specific method to solve the waste gas treatment problem in the industry, of course, the industry is mainly the waste gas treatment problem of solvents:
Problems existing in the treatment of solvent waste gas in pharmaceutical and chemical waste gas treatment
After the control and treatment of pharmaceutical and chemical waste gas by relevant departments, it has been significantly improved, but it has not been well improved. There are still obvious solvent waste gas treatment problems in the pharmaceutical and chemical industry.
Some enterprises whose waste gas from pharmaceutical and chemical industry seriously pollutes the air will be closed after the treatment is invalid to improve the air environment. The pollution index in the air has dropped significantly. Radical exhaust emissions are treated. In order to achieve a good exhaust gas emission effect and reduce the pollution of the surrounding environment, after a long-term control and treatment of pharmaceutical and chemical solvents, the exhaust gas emission index has been better reduced.
For most pharmaceutical and chemical enterprises, it is necessary to establish a solvent waste gas treatment mechanism with high safety, carry out clean pharmaceutical and chemical production, improve the solvent waste gas discharge, and adopt a reuse plan for solvent waste gas, so as to reduce the pollution of solvent waste gas and reduce the pollution of solvent waste gas. It can improve the utilization value of the solvent, thereby reducing the pollution of the surrounding environment caused by the exhaust gas emission of medicine and chemical industry.
For pharmaceutical and chemical waste gas treatment, solvent waste gas discharge treatment should be improved from the root cause, effectively control the centralized treatment and discharge of solvent waste gas, reduce the multi-faceted environmental pollution caused by multi-point discharge, and take fundamental measures to improve the problems existing in solvent waste gas discharge and effectively control The waste gas formed by the pharmaceutical and chemical industry is cleaned and treated to effectively reduce the pollution to the surrounding environment, and centralized treatment and discharge are carried out.
For the solvent waste gas produced in the pharmaceutical and chemical production, there are many problems in the waste gas treatment, and the cleaning treatment technology for the solvent waste gas has not been well perfected. The author believes that the solvent waste gas generated by the pharmaceutical and chemical industry has a serious pollution effect. At present, the solvent waste gas is generally treated by cooling, cleaning and other treatment methods. However, the solvent waste gas treatment is not very effective. This has always been an important problem that has plagued the development of the pharmaceutical and chemical industry and exhaust gas emissions. The problem of exhaust emission should be solved more vigorously, so as to improve the exhaust emission and the quality of the surrounding environment.
An important raw material in a company's production of pesticides, fungicides, herbicides and various technical products is xylene. According to the actual situation of the project, our company comprehensively considers the four aspects of safety, energy saving, economy and compliance, rationally designs the process, proposes the most optimal solution, and finally adopts the waste gas treatment process with activated carbon fiber adsorption, concentration, condensation and recovery technology as the core. In this technology, activated carbon fiber is used as the adsorbent, and the organic waste gas first passes through the alkali washing tower to remove macromolecular phenolic organic compounds in the waste gas, and then enters the activated carbon fiber adsorption box after filtering.
The xylene component in the exhaust gas is adsorbed on the surface of the carbon fiber, and the purified gas is discharged through the carbon fiber up to the standard. The xylene adsorbed on the carbon fibers is desorbed by heating with low pressure steam. The desorbed steam mixture is cooled and condensed into a liquid state by the condenser, and then enters the oil-water separator for separation. The separated solvent enters the storage tank, and the waste water is discharged to the factory sewage treatment station for treatment. The non-condensable gas generated by the desorption process is returned to the front-end pipeline for re-collection.
1. Pretreatment: The acid-base corrosion gas, particulate dust, etc. in the exhaust gas are removed by washing towers, filtration and adsorption, etc. The treated exhaust gas is pressurized into the adsorber by the fan, and the organic components are adsorbed when penetrating the activated carbon fiber bed. At the adsorbent surface, the purified gas is discharged from the top of the adsorption box.
2. Adsorption-recovery: The adsorption recovery process uses water vapor to desorb the organic matter on the carbon fiber to regenerate the activated carbon fiber. The desorption steam enters from the top of the adsorber, heats the activated carbon fiber adsorption core, and desorbs the adsorbed organic matter. The activated carbon fiber after desorption has high humidity and temperature, and the adsorber is purged with fresh air, so that the carbon fiber adsorption bed is rapidly cooled and dehumidified, and then enters the next cycle.
3. Condensation recovery: The mixed steam generated by desorption is condensed into liquid state by the condenser, and the organic solvent is recovered by gravity layering in the oil-water separator.
The above set of solutions is an organic waste gas treatment solution tailored for the pharmaceutical company. Of course, the method is dead. How to use it flexibly can effectively treat waste gas more quickly and economically. Of course, this is also the purpose of our Zhongqing Green Energy to solve waste gas treatment.
If you need to know more organic waste gas treatment methods, please look for it in the website section.