With the development of urban modernization and the improvement of people's living standards, China's agricultural production has entered a new period. At the same time, agricultural demand has led to the rapid development of the pesticide industry. Pesticide production belongs to the field of fine chemicals. The production process is more complicated, the reaction steps are more, and the raw material consumption is large. Therefore, a large number of "three wastes" are produced in the production process.
There are many problems with the activated carbon adsorption and purification device in the workshop. Gases such as HCl and HBr corrode the equipment seriously, and the exhaust gas contains a large number of macromolecular organic particles. It has strong adhesion and is easy to cause activated carbon deactivation and regeneration difficulties. Therefore, the treatment effect of the existing equipment cannot fully meet the requirements of relevant standards, and the organic waste gas after treatment is still difficult to meet the standard discharge. The above-mentioned treatment process needs to be further improved.
Plant liquid deodorant has the function of efficiently decomposing odor molecules and has an fragrant odor. Therefore, it is widely used in waste treatment plants, landfill sites, waste transfer stations, waste compost stations, waste incineration plants, packaging printing, pharmaceutical factories, Livestock farms, aquaculture farms, manure treatment centers, feed processing, municipal sewage treatment, food and fishery processing, industrial wastewater treatment, transportation tools, public toilets, household daily use, etc. Can quickly eliminate various odors. Such as formaldehyde, benzene series, TVOC, ammonia and other harmful chemicals. Some products contain highly effective germicidal ingredients, which can effectively kill odor-producing bacteria in waste water and garbage, and remove odors and odors from the source.
The experience of monitoring and reforming the waste gas pollution of pesticide factories, summarized the characteristics of waste gas pollution of pesticide factories, and adopted comprehensive treatment technologies such as adsorption, absorption and incineration to effectively control waste gas pollution. Taking the pesticide plant Roguo and Daofengsan as examples, the waste gas pretreatment and modification processes were analyzed. After the exhaust gas is subjected to water-washing and alkali-washing absorption pretreatment, and after entering into RTO incineration, the emission concentration or emission rate of various types of exhaust gases are far below the corresponding standard limits, and the emissions can be achieved.
For the H2S and dichloroethane-containing exhaust gas, since the purification temperature of the RTO furnace is usually above 800 ± 50 ℃, the overall purification efficiency of sulfide and aromatics by this process is relatively high. After the incineration treatment of the RTO furnace, the H2S or other sulfur-containing compounds are oxidized to SO2, and chloroalkanes are oxidized and decomposed into CO2, water, and HCl at high temperature. For the HCl and SO2 in the exhaust gas, this solution uses alkaline washing to absorb and purify.
After the reform of the above scheme, the company's waste gas pollution during the production process has been greatly reduced, the waste gas can be discharged in compliance with the standard, and the phenomenon of foul nuisance has been basically eliminated, which has better environmental and social benefits. The project has great practical reference value for similar exhaust gas treatment, and has a good prospect.