1.Hidden Corrosion

     The hidden danger of corrosion is the invisible killer of the safe operation of hospital sewage treatment. The main reason for its generation is directly related to the environment of the hospital sewage treatment station and the large amount of highly corrosive volatile gases produced by the disinfectant.

    At present, most hospitals use chemical methods to prepare chlorine dioxide, that is, hydrochloric acid and sodium chlorate undergo a severe chemical reaction under high temperature and pressure conditions to produce chlorine dioxide for disinfection; or use electrolytic salt equipment to electrolyze salt water to produce sodium hypochlorite for disinfection.

    No matter which method is used in the daily sewage disinfection equipment operation, a large number of strongly corrosive gases, such as HCL gas, chlorine dioxide gas, etc. will be generated. They will strongly corrode the sewage station's power distribution system and aeration fans, sludge dryers and other equipment, causing equipment failures, electrical shorts, and other safety accidents such as electric shocks and fires.

2.Hidden fire hazards

     Through interviews, it was found that fire hazards are easily neglected in the operation and management of sewage in most hospitals. The main reason is that they do not know enough about the chemical nature of raw materials used in hospital sewage disinfection. Sodium chlorate, one of the raw materials used in the preparation of chlorine dioxide by chemical methods, is flammable and explosive. Its use and storage should be kept away from fire sources and power sources. In the process of preparing sodium hypochlorite, a large amount of sodium chloride crystals, sodium chlorate crystals, and hydrogen gas are also produced by the electrolytic salt equipment, which is extremely prone to fire when exposed to open flames.

3. Hidden dangers of anti-virus and anti-chemical

     In the words of domestic environmental and safety experts: The existing sewage treatment station in the hospital is a small chemical plant. No matter it is the sodium hypochlorite produced by electrolytic method or chlorine dioxide produced by chemical method, a lot of chlorine gas, chlorine dioxide gas and other toxic gases will be produced during the preparation process.

   According to data records: the content of chlorine in 1L of air exceeding 1ML will cause human poisoning until death. Once the chlorine gas is leaked and cannot be effectively treated in time, it will inevitably cause a large number of casualties and cause serious safety accidents. At the same time, hydrochloric acid is strongly corrosive, and if it is not handled properly in daily use, it is easy to cause personal burns. At present, most hospital sewage treatment stations are not equipped with sufficient anti-virus and chemical protection supplies, or the staff of the sewage stations lack relevant training. They are not skilled in the operation of the equipped equipment. Once the leakage of dangerous chemicals such as chlorine gas and hydrochloric acid is easily caused Personal injury.

4. Hidden dangers of hazardous chemicals management

   The raw materials used in the chemical method for the production of chlorine dioxide are hydrochloric acid and sodium chlorate, both of which are hazardous chemicals. Among them, hydrochloric acid is also the main raw material for the production of ice poisons, and belongs to the precursor chemicals. The purchase, transportation, and use of it must be in strict accordance with the relevant requirements of the State's "Prevention of Toxic Chemicals Management Regulations" and "Dangerous Chemicals Management Regulations" to the relevant departments for record, and strictly purchase and use privately.

   According to the provisions of the above two laws, dangerous chemicals must be stored in warehouses with professional storage conditions under specific conditions, and anti-theft work must be done. At present, most hospitals lack the corresponding storage conditions and anti-theft awareness. The use of dangerous chemicals is relatively arbitrary. Once the dangerous chemicals flow from the hospital to the society, the consequences are unthinkable.