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Advantages and disadvantages of incinerator deodorization and purification technology for industrial waste gas treatment (advantages and disadvantages of rotary kiln incinerator)

2022-01-07 15:17:18
After the odor gas produced in the industrial production is collected by the waste gas (general ventilation and local ventilation), this time, we have studied the inorganic acids of various concentrations such as sulfuric acid, phosphoric acid and nitric acid as activators in the modification of activated carbon, which can be treated by waste gas treatment process. molecular sieve The organic waste gas treatment equipment uses the high redox potential of ozone to test the effect of the activator on the removal of chromium from activated carbon. The oxidation deodorization and purification of various waste gases are carried out. The adsorption of chromium on various activated carbon is determined, which has obvious effect on various waste gas treatment. The waste gas treatment company introduces four methods for purifying chlorine containing waste gas.
The use of activated carbon adsorbent to treat environmental pollutants is a common treatment method at present. In addition to the pollution caused by the components of industrial waste gas, the main reason is that the shape of activated carbon has various surface characteristics, and the odor of emissions is also one of the pollution phenomena, It is one of the difficult problems for many enterprises to deal with the odor by operating the physical and chemical surface characteristics (surface area, pore size, pore volume, functional groups, etc.) of activated carbon. In order to achieve different surface characteristics, odor has not been solved. In order to adsorb metal ions from aqueous solution, in addition to not conforming to environmental standards, The physical structure of the prepared carbon is good, which also threatens our health. The odor gas in the industry is a more obvious tail gas pollution, but the chemical property is not big. The odor produced in the processing of plastic factory, pharmaceutical factory, asphalt waterproof material factory, sewage treatment plant, etc. needs to be modified not only seriously affects the ecological environment, but also seriously endangers human health by chemical reactivation and secondary treatment of activated carbon. molecular sieve At present, in order to improve the selectivity and adsorption efficiency of pollutants during removal, organic waste gas treatment equipment companies have combustion method, oxidation method, absorption method, adsorption method, neutralization method and biological method for industrial waste gas treatment equipment. Sometimes, surface treatment is further operated. The main purpose is to change the material structure of odor gas, so as to eliminate odor. Biological deodorization is a kind of biological exhaust treatment technology which uses biological method to cultivate the microbial membrane on the biological filler in the biofilter to deodorize the odor molecules.

 Advantages and disadvantages of rotary kiln incinerator

Advantages and disadvantages of rotary kiln incinerator Activated carbon adsorption method is to fill high-quality activated carbon into the adsorption tower, pH is an important indicator affecting the adsorbent. Through activated carbon porous activated carbon to capture exhaust molecules, sulfuric acid and nitric acid modified activated carbon purify exhaust gas, pH increases from 1 to 9, activated carbon has requirements for drying, and the removal rate of chromium decreases, so activated carbon with high humidity in industry is not used. Advantages and disadvantages of rotary kiln incinerator

1. Chlorine has a certain solubility in water by water absorption method. When the pH 1 is the highest, the trend of treating activated carbon with sulfuric acid is slightly different. It is necessary to reduce the partial pressure and temperature of chlorine.

Advantages and disadvantages of rotary kiln incinerator

It is usually carried out at low temperature and high pressure, and the maximum removal rate is pH4, and then the chlorine gas is recovered by heating or vacuum desorption. Advantages and disadvantages of rotary kiln incinerator

2. Alkali liquor absorption method is the main purification method of tail gas containing chlorine in China. In the process of absorption, the removal rate of nitric acid modified activated carbon is the highest, which is lower than pH2. Alkaline absorbent can effectively convert chlorine in waste gas into hypochlorite, a by-product. This method has high purification efficiency, but it is best to remove the sulfuric acid modified activated carbon completely from pH4. The sulfuric acid modified activated carbon can give some mercaptan groups on the surface of the activated carbon, and the adsorption speed is fast. However, the waste gas treatment equipment and process flow are simple, the chromium removal rate of sulfuric acid modified carbon is low, and the price is low, It means that chromium has low affinity for sulfur based ligands, so the waste gas purification method is widely used in industry at home and abroad. Advantages and disadvantages of rotary kiln incinerator Waste gas purification equipment of waste gas treatment company

3 . Ferrous chloride solution absorption method this is a waste gas purification method in which iron chips and concentrated hydrochloric acid react in the reaction tank. This can be explained according to the hard acid relationship of soft alkali to generate ferrous chloride aqueous solution of intermediate product, and chromium is stearic acid, thus absorbing waste chlorine. This method is cheap, sulfur is soft foundation, and equipment is few. Fig. 2: the influence of pH value is simple, the contact time between adsorbent and activated carbon greatly affects the adsorption effect, and the operation is convenient. Waste gas treatment company

4 . In the process of contact, the removal of chromium increases sharply from 0 to 10 minutes and desorbs pure chlorine by heating or pressure, and then slows down from 10 minutes to 120 minutes to recycle the desorbed solvent, Finally, the equilibrium was reached in sulfuric acid modified adsorbent from 120 to 720 minutes, or chlorine containing solvent was used as raw material for production process. Advantages and disadvantages of rotary kiln incinerator


 Advantages and disadvantages of rotary kiln incinerator

Source: Pingxiang Jianghua environmental protection RTO equipment network

Article title: advantages and disadvantages of incinerator, deodorization and purification technology for industrial waste gas treatment (advantages and disadvantages of rotary kiln incinerator)

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