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Views: 0 Author: Site Editor Publish Time: 2024-04-11 Origin: Site
Environmental purification
In the field of environmental purification, potassium permanganate, as a strong oxidant, can effectively remove organic pollutants in water and reduce the biochemical oxygen demand (BOD) in water. It can oxidize toxic substances in water, such as hydrogen sulfide and phenolic compounds, to purify water quality and meet safety standards. In addition, potassium permanganate is also used to treat industrial wastewater, helping to remove pollutants that are difficult to biodegrade and reducing the burden on the environment.
Disinfection and sterilization
In terms of disinfection and sterilization, potassium permanganate is also widely used. It can kill various microorganisms such as bacteria, viruses, fungi, and algae, so it plays an important role in disinfection of medical facilities, home hygiene, hygiene maintenance in public places, and the food processing industry. The disinfection effect of potassium permanganate is not limited to water bodies, but can also be used for the disinfection of skin and wounds, as well as for the sterilization treatment of equipment and surfaces.
The environmental purification and disinfection and sterilization capabilities of potassium permanganate make it an indispensable chemical in these fields. It not only helps to ensure public health safety, but also has a positive impact on maintaining ecological balance and promoting sustainable development. With the increasing global attention to environmental protection and disease prevention, potassium permanganate will continue to play an important role in future environmental purification, disinfection, and sterilization work.
The chemical formula of potassium permanganate is KMnO43. It is a black purple slender prismatic crystal or particle with water soluble properties. In terms of physical properties, potassium permanganate has a molecular weight of 158.034, a melting point of 240 ° C, and a density of approximately 2.7g/cm31. The water solubility of potassium permanganate at 20 ° C is 6.4g/100mL1.
The most significant characteristic of potassium permanganate is its strong oxidizing ability. Potassium permanganate is commonly used as an oxidant in laboratories and industry. In acidic media, it slowly decomposes into manganese dioxide, potassium salts, and oxygen, and light has a catalytic effect on this decomposition. The strong oxidizing properties of potassium permanganate make it play an important role in environmental purification, disinfection, and sterilization. For example, it can be applied to in-situ remediation of soil, removing pollutants such as trichloroethylene, tetrachloroethylene, and dichloroethylene (DCE) from the soil. In addition, potassium permanganate has strong oxidation ability towards organic pollutants within the pH range of common water treatment. Its reduction product is insoluble and environmentally friendly manganese dioxide (MnO2), which is easy to separate from the solution. It can also be synergistically removed from pollution by adsorption, oxidation, coagulation assistance, and other methods.
The strong oxidizing property of potassium permanganate also makes it widely used as a disinfectant and bactericide in the medical field. It can kill various microorganisms such as bacteria, viruses, fungi, and algae, so it plays an important role in disinfection of medical facilities, home hygiene, hygiene maintenance in public places, and the food processing industry. In addition, potassium permanganate can also be used to clean wounds, ulcers, or abscesses, as well as as as as a wet dressing or formulated into a certain concentration solution to treat eczema and acute skin diseases.
In the field of water treatment, potassium permanganate, as a strong oxidant, can effectively remove organic pollutants in water and reduce the biochemical oxygen demand (BOD) in water. It can oxidize toxic substances in water, such as hydrogen sulfide and phenolic compounds, to purify water quality and meet safety standards. In addition, potassium permanganate is also used to treat industrial wastewater, helping to remove pollutants that are difficult to biodegrade and reducing the burden on the environment. In the process of water treatment, the reduction product of potassium permanganate, manganese dioxide (MnO2), can form a precipitate and be removed from the water through physical methods such as filtration, further purifying the water quality.
Potassium permanganate is not as widely used in air purification as in water treatment, but it can still be used to remove pollutants from the air in certain specific situations. For example, when dealing with exhaust gases containing volatile organic compounds (VOCs), potassium permanganate can act as an oxidant to participate in advanced oxidation processes, converting these harmful gases into harmless or low toxic substances. In addition, potassium permanganate can also be used for disinfection and sterilization, helping to reduce microbial pollution in the air, especially in medical facilities and public places.
In the medical field, potassium permanganate is widely used as a disinfectant due to its strong oxidizing properties. It is mainly used for cleaning wounds, ulcers, or abscesses, as well as as for wet dressings or preparing solutions of certain concentrations to treat eczema and acute skin diseases3. Potassium permanganate can also be used for gastric lavage treatment and emergency treatment of snake bites when poisoned by oral morphine, brucine, or organic toxins. In medical disinfection, different concentrations of potassium permanganate have different effects. For example, a solution of 0.1% -0.5% can be used to wash infected wounds, while a solution of 0.01% -0.02% can be used for ophthalmic disinfection.
Potassium permanganate is also an effective disinfectant in both households and public places. For example, in the daily disinfection of public places, potassium permanganate can be used to disinfect the surface of environmental objects, such as the ground, sidewalls, and frequently used or touched surfaces. A chlorine (bromine) disinfectant solution with an effective chlorine (bromine) content of 500mg/L-1000mg/L can be used for wiping or spraying disinfection. In addition, potassium permanganate can also be used for air disinfection. Under the conditions of closed doors and windows, no one and airtight, aerosol spray disinfection is carried out with a chlorine (bromine) disinfectant solution with an effective chlorine (bromine) content of 1000mg/L-2000mg/L.
When using potassium permanganate for disinfection, attention should be paid to its concentration and duration of action to avoid damage to the skin and mucous membranes. Potassium permanganate aqueous solution is prone to spoilage and needs to be prepared and used on site
In industrial wastewater treatment, potassium permanganate can effectively remove organic pollutants. For example, when treating wastewater containing organic substances that are difficult to biodegrade, potassium permanganate can act as an oxidant, disrupting the structure of the organic matter through its oxidation, making it more easily decomposed by subsequent biological treatment processes. In addition, the reduction product of potassium permanganate, manganese dioxide (MnO2), is insoluble and can be separated from wastewater through physical methods, thereby reducing the pollutant load in wastewater.
Disinfection is one of the important measures to cut off the transmission route of infection in epidemic control. Potassium permanganate can be used for daily disinfection in public places, such as disinfecting the ground, sidewalls, and surfaces of frequently used or touched objects. For example, during the epidemic of novel coronavirus, potassium permanganate solution was used to disinfect the surface of environmental objects. Chlorine (bromine) disinfectant solution with effective chlorine (bromine) content of 500mg/L-1000mg/L was used to wipe or spray for disinfection. However, it should be noted that potassium permanganate can not kill the novel coronavirus. Therefore, 75% alcohol, chlorine containing disinfectant and other effective disinfectants are recommended for epidemic prevention and control.
When using potassium permanganate for disinfection, attention should be paid to its concentration and duration of action to avoid damage to the skin and mucous membranes. Potassium permanganate aqueous solution is prone to spoilage and needs to be prepared and used immediately. When used at home, the required concentration should be strictly formulated according to the instructions, and attention should be paid not to exceed the recommended concentration to prevent skin burns. When used in public places, professional personnel should follow relevant operating guidelines to ensure disinfection effectiveness and personnel safety.
Personal protection: Operators should wear appropriate protective equipment, including anti-seepage protective clothing, protective boots, anti-seepage gloves, and goggles, to prevent potassium permanganate from coming into contact with the skin and eyes.
Avoid inhalation: Good ventilation should be ensured during operation to reduce the risk of inhalation of potassium permanganate dust or aerosols.
First aid measures: In case of accidental contact, corresponding first aid measures should be taken immediately. For example, after skin contact, rinse with plenty of water for at least 15 minutes; After eye contact, rinse immediately with flowing water or physiological saline for at least 15 minutes; When inhaling, the patient should be quickly moved to fresh air and given artificial respiration.
Storage conditions: Potassium permanganate should be stored in a cool, dry, well ventilated place, away from fire and heat sources, with a storage temperature not exceeding 32 ℃ and a relative humidity not exceeding 80%.
Packaging requirements: The container of potassium permanganate should be kept sealed to prevent moisture from entering, causing it to absorb moisture and decompose.
Avoid mixing: When storing and handling potassium permanganate, avoid mixing with reducing agents, active metal powders, flammable or combustible substances, etc. to prevent violent reactions.
Waste treatment: The remaining and unrecycled potassium permanganate solution should be handed over to a professional treatment company or burned in a chemical incinerator equipped with an afterburner and scrubbing equipment.
Leakage emergency response: In the event of a leak, the contaminated area should be immediately isolated, personnel entry and exit should be restricted, and appropriate protective measures should be taken. Small leaks can be collected by mixing sand, dry lime, or soda ash, while large leaks should be collected and recycled or transported to waste disposal sites for disposal.
The value of potassium permanganate in environmental purification and disinfection is reflected in its versatility and effectiveness as a strong oxidant. In terms of environmental purification, potassium permanganate can effectively remove organic pollutants in water and reduce the biochemical oxygen demand (BOD) in water. At the same time, its reducing product manganese dioxide (MnO2) is easy to separate from the solution, which helps to further purify water quality. In terms of disinfection and sterilization, potassium permanganate can kill various microorganisms such as bacteria, viruses, fungi, and algae. It is suitable for disinfection of medical facilities, household hygiene, hygiene maintenance in public places, and the food processing industry.
Looking ahead to future development, with the increasing awareness of environmental protection and technological progress, the application of potassium permanganate in the fields of environmental purification and disinfection and sterilization may be further expanded. Technological innovation will drive the improvement of efficiency and safety in the use of potassium permanganate, such as developing new formulas or processes to reduce its impact on the environment or improve its performance in specific applications. Meanwhile, the strengthening of environmental regulations may promote stricter regulation of the environmental impact during the use of potassium permanganate, promote the development of more environmentally friendly alternatives or improve existing processes. In addition, with the increasing demand for disinfection products, the application of potassium permanganate in public health and disease prevention will continue to receive attention, especially in the face of global public health challenges such as novel coronavirus. Through continuous technological innovation and regulatory compliance, the application of potassium permanganate will be more efficient, safe, and environmentally friendly, making greater contributions to the protection of the environment and human health.
