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There are many sources of industrial wastewater. How should I choose a treatment method?
Author: Dongguan Wante source: http://fatheroye.com/ date: 2019-12-25 Clicks:
Integrated chemical wastewater is mainly produced in chemical production, and its raw materials for production, wastewater discharged during production, cooling water, and waste water formed by material loss during production and transportation of raw materials and products, or rainwater soaking, are all integrated chemical wastewater. Its wastewater contains organic and inorganic pollutants, represented by ethylene, dimethylnaphthalene, etc., which is difficult to degrade and serious drug residues.
Plant liquid spray deodorization is sprayed into a mist form by a special sprayer using different wet spraying techniques, and the droplets are diffused in a specific space. The effective deodorizing molecules in the droplets contain biological groups, chemical activities, conjugated double bonds and other active groups, which can interact with different odors. Not only can it effectively absorb the odor molecules in the air, but also change the three-dimensional configuration of the adsorbed odor molecules, weaken the chemical bonds in the odor molecules, and increase the instability of the odor molecules. The molecules carry out chemical reactions to achieve complete deodorization and deodorization, and play an effective role in air purification.

Coking wastewater is a kind of water which is used in the initial cooling of coke oven gas and coking production process or is condensed by steam. It is a toxic and difficult to degrade organic wastewater. There are two main sources of this waste water, which come from the remaining ammonia waste liquid, which is produced during the high-temperature cracking of coal. The remaining ammonia water has complex and diverse components and contains high concentrations of pollutants. Since phenol water is mainly produced during the gas purification process, the pollution of phenol water is relatively low.
In the cyclic biological deoxygenation process, denitrification occurs first in the anoxic tank, mud water is refluxed separately, and nitrification occurs in the aerobic tank. In these two chemical reactions, the participating microorganisms and the reaction conditions are different, and the transformed substrate Also different. The treatment efficiency of this method has been improved, but because the wastewater stays in the pond for too long, the effect of degradation of organic matter therein is not good. On the basis of this process, many researchers have improved this method, such as the formation of an anaerobic-anoxic-aerobic ( A-A-O) process, A-O- O process and so on.
Using activated sludge as the main body, aerated treatment of the pretreated wastewater such as degreasing and homogenization, and solid-liquid separation. The coking wastewater treated by this method can effectively reduce the phenol content per liter of wastewater. Contains only about 0.5 mg of phenol. Using this method to treat coking wastewater, the treatment effect is better, and the degree of treatment can be flexibly adjusted. During the treatment, the problem of increased load can also be solved by increasing the reflux ratio.
The waste odor gas molecules adsorbed on the surface of the plant liquid are in contact with oxygen in the air. At this time, the waste odor gas molecules have increased their reactivity due to the above two reasons, and changed the mechanism of reaction with oxygen, so that it can be used at room temperature. Reacts with oxygen. The basic principle of the purification of waste odor from natural plant extracts is that some special natural plants are extracted and combined with waste odor gas molecules to decompose, polymerize, replace, replace and add chemical reactions, which promotes the change of waste odor gas molecules. Some molecular structures make it lose odor, and later produce odorless, non-toxic substances.

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