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Design principles of chemical waste gas treatment scheme

Views:3     Author:Xicheng Ep Ltd     Publish Time: 2021-09-24      Origin:Xicheng Ep Ltd

Chemical waste gas comes from toxic and harmful gases discharged from chemical plants in chemical production. The composition of chemical waste gas produced by different chemical production industries is very different, there are many types of pollutants, the physical and chemical properties are complex, and the toxicity is not the same, which seriously pollutes the environment and affects human health.


Chemical waste gas is generally divided into the following three categories


(1) Sulfur-containing compounds, such as hydrogen sulfide, mercaptans, dimethyl sulfide, thioethers, and sulfur-containing heterocyclic compounds.

(2) Nitrogen-containing compounds, such as ammonia, amines, nitriles, nitro compounds and nitrogen-containing heterocyclic compounds, etc.

(3) Carbon, hydrogen or compounds composed of carbon, hydrogen, and oxygen (lower alcohols, aldehydes, fatty acids, etc.).

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Among the eight malodorous substances that have a greater impact on the human body are: hydrogen sulfide, ammonia, trimethylamine, methyl mercaptan, methyl sulfide, carbon disulfide, styrene, and dimethyl disulfide. The foul gas we usually refer to refers to the gas with foul smell diffused in the air.


The design principles of chemical waste gas treatment scheme are as follows:


(1) Assist enterprises in adopting scientific and reasonable collection methods, and try to reduce gas volume on the premise of achieving the collection effect.


(2) Actively and steadily adopt new technologies and equipment, and adopt mature, advanced and reliable waste gas treatment technology based on the current status and management level of the enterprise, and strive to achieve stable operation, low cost, convenient management and easy maintenance, so as to achieve the complete elimination of waste gas pollution , The purpose of protecting the environment.


(3) Properly solve the pollutants generated during the construction and operation of the project to avoid secondary pollution.


(4) Strictly implement the current national and local regulations, regulations and standards for fire prevention, safety, health, and environmental protection.


(5) Choose new, high-efficiency, low-noise equipment, and pay attention to energy saving and consumption reduction.


(6) The overall layout should be compact, reasonable and unobstructed, simple and practical. Minimize the land occupation and construction difficulty of the project.


(7) Strictly implement relevant national design codes and standards, and attach importance to fire protection and safety work. (GB16297-1996)


(8) In accordance with the requirements of national and local environmental protection laws, regulations and industrial policies, industrial pollution shall be treated, and the social, environmental and economic benefits of construction projects shall be brought into full play.


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