What are the hazards of organic waste gas? How to deal with organic waste gas? At present, environmental problems in China are very prominent, seriously affecting the economic development of society and people's daily lives. Among them, toxic organic compounds have a very serious impact on environmental pollution. These pollutants have the characteristics of large emissions, wide pollution coverage, and difficult degradation. Pollution control of them has always been a key research topic for environmental protection workers.
The harm of organic waste gas to the human body is multifaceted, and the toxicity of organic waste gas varies from industry to industry. Among them, the 10 common types of organic waste gas in industrial waste gas mainly pose a threat to the human body: benzene organic compounds damage the central nervous system, causing neurological disorders. When the concentration of benzene vapor is too high (up to 2% in the air), it can cause fatal acute poisoning. Polycyclic aromatic hydrocarbons (PAHs) are highly carcinogenic organic compounds. Benzoic acid organic compounds can cause deformation or coagulation of cellular proteins, leading to systemic toxicity. When nitrile organic compound poisoning occurs, it can cause difficulty breathing, severe suffocation, loss of consciousness, and even death. Organic compound nitrobenzene affects the function of the nervous system, blood phase, liver, and spleen organs, and can cause death if absorbed extensively by the skin. Aromatic amine organic compounds can cause cancer, while diphenylamine, benzidine, and other substances entering the human body can cause hypoxia. Organic nitrogen compounds can cause cancer. Organophosphorus compounds reduce the activity of cholinesterase in the blood, causing dysfunction of the nervous system. Low concentrations of thiols in organic sulfur compounds can cause discomfort, while high concentrations can lead to death. Inhaling high concentrations of ethylene oxide in oxygen-containing organic compounds can cause death in humans; Acrolein has a strong irritant effect on mucous membranes; Pentanol can cause headaches, vomiting, diarrhea, etc.
Organic waste gas mainly comes from the emissions during the production processes of the petroleum and chemical industries. The organic waste gas generated in industrial production mainly includes various hydrocarbons, alcohols, aldehydes, acids, ketones, and amines. These organic waste gases not only cause air pollution and harm human health, but also lead to waste. Therefore, the treatment and purification of organic waste gas are essential.
But organic waste gas is one of the most difficult to treat industrial waste gases. At present, the basic methods for treating organic waste gas are as follows: condensation recovery method; Adsorption method (also divided into three types: direct adsorption method, adsorption recovery method, and adsorption catalytic combustion method); Direct combustion method; Catalytic combustion method; Absorption method and nano micro electrolysis oxidation method. At present, the activated carbon adsorption method is widely used in the industry to save initial investment. Its principle is to adsorb exhaust gas through activated carbon. When the adsorption is saturated, the activated carbon desorbs and regenerates, blowing off the exhaust gas and catalyzing combustion to convert it into harmless substances. The regenerated activated carbon continues to be used. When the adsorption capacity of activated carbon significantly decreases after a certain number of regenerations, it is necessary to regenerate or update the activated carbon