Hangzhou Mingxin Hydrogen Peroxide Co., Ltd
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Jerry Li
Jerry Li
Quality control manager extraordinaire, Jerry ensures that all Mingxin Hydrogen Peroxide products meet the highest international standards. His expertise in quality assurance is vital in maintaining customer trust and satisfaction.
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What are the uses of 35% H2O2 in the water purification process?

Jun 09, 2025

In the realm of water purification, 35% hydrogen peroxide (H₂O₂) emerges as a versatile and powerful tool. As a reliable supplier of 35% H₂O₂, I am excited to delve into the diverse applications and benefits of this chemical in the water purification process.

Oxidation of Organic Compounds

One of the primary uses of 35% H₂O₂ in water purification is its ability to oxidize organic compounds. Organic pollutants, such as pesticides, pharmaceuticals, and industrial chemicals, can contaminate water sources and pose significant risks to human health and the environment. Hydrogen peroxide acts as a strong oxidizing agent, breaking down these organic compounds into simpler, less harmful substances.

When 35% H₂O₂ is added to water, it decomposes into water and oxygen, releasing highly reactive hydroxyl radicals in the process. These hydroxyl radicals are extremely powerful oxidants that can react with a wide range of organic pollutants, including those that are resistant to traditional treatment methods. The oxidation process not only removes the pollutants from the water but also reduces their toxicity, making the water safer for consumption and other uses.

For example, in the treatment of industrial wastewater containing phenolic compounds, 35% H₂O₂ can be used to oxidize the phenols into carbon dioxide and water. This not only eliminates the toxic phenolic compounds from the wastewater but also reduces the chemical oxygen demand (COD) of the water, making it more suitable for discharge or further treatment.

Disinfection

Another important use of 35% H₂O₂ in water purification is its disinfectant properties. Hydrogen peroxide is effective against a wide range of microorganisms, including bacteria, viruses, fungi, and protozoa. It works by disrupting the cell membranes and cellular processes of these microorganisms, leading to their death.

Unlike traditional disinfectants such as chlorine, which can form harmful disinfection by-products (DBPs) when reacting with organic matter in water, hydrogen peroxide does not produce DBPs. This makes it a more environmentally friendly and safer alternative for water disinfection. Additionally, hydrogen peroxide decomposes rapidly in water, leaving behind only water and oxygen, which means that there is no residual disinfectant in the treated water.

In water treatment plants, 35% H₂O₂ can be used as a primary or secondary disinfectant. It can be added to the water at different stages of the treatment process, depending on the specific requirements of the water source and the treatment goals. For example, it can be used as a pre - disinfectant to reduce the microbial load in the raw water before it enters the treatment plant, or as a post - disinfectant to ensure the microbiological safety of the treated water before distribution.

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Removal of Heavy Metals

35% H₂O₂ can also be used in the removal of heavy metals from water. Heavy metals such as lead, mercury, cadmium, and chromium are toxic to humans and the environment and can accumulate in the food chain. Hydrogen peroxide can be used to oxidize the heavy metals from their lower oxidation states to higher oxidation states, which are more easily precipitated and removed from the water.

For instance, in the treatment of water contaminated with iron and manganese, 35% H₂O₂ can be added to oxidize the ferrous iron (Fe²⁺) to ferric iron (Fe³⁺) and the manganous manganese (Mn²⁺) to manganic manganese (Mn⁴⁺). The oxidized forms of iron and manganese are insoluble in water and can be removed by filtration or sedimentation.

Advanced Oxidation Processes (AOPs)

35% H₂O₂ is often used in combination with other oxidants or catalysts in advanced oxidation processes (AOPs) for water purification. AOPs are a set of treatment methods that generate highly reactive hydroxyl radicals to degrade organic pollutants in water. By combining 35% H₂O₂ with other substances such as ozone (O₃), ultraviolet (UV) light, or catalysts like titanium dioxide (TiO₂), the production of hydroxyl radicals can be enhanced, leading to more efficient degradation of organic pollutants.

For example, in the UV/H₂O₂ AOP, 35% H₂O₂ is added to water and then exposed to UV light. The UV light activates the hydrogen peroxide, causing it to decompose and generate hydroxyl radicals at a faster rate. This process is particularly effective in the treatment of water contaminated with persistent organic pollutants such as polycyclic aromatic hydrocarbons (PAHs) and halogenated organic compounds.

Our Products for Water Purification

As a supplier of 35% H₂O₂, we offer high - quality products that are suitable for various water purification applications. Our 35% Industrial Grade High Strength Hydrogen Peroxide for Waste - water Treatment is specifically formulated to meet the demanding requirements of industrial wastewater treatment. It has a high concentration of hydrogen peroxide and is free from impurities that could interfere with the treatment process.

In addition, our 35% Industrial Grade Hydrogen Peroxide for Bamboo, Wood, Leather and Pigskin Bleaching can also be used in some water purification processes where oxidation and disinfection are required. The high - quality of our product ensures its effectiveness and reliability in water treatment applications.

Our 35% Industrial Grade Hydrogen Peroxide For Textile Fibers Bleaching In Textile Industry also has potential uses in water purification, especially in the treatment of water containing textile dyes and other organic contaminants. The strong oxidizing properties of our hydrogen peroxide can help to break down these contaminants and improve the quality of the water.

Contact Us for Procurement

If you are involved in water purification projects and are looking for a reliable supplier of 35% H₂O₂, we would be delighted to hear from you. Our team of experts can provide you with detailed information about our products, their applications, and the best practices for using them in water purification. We can also offer customized solutions based on your specific requirements. Whether you need a small quantity for a laboratory - scale experiment or a large volume for an industrial - scale water treatment plant, we have the capacity to meet your needs. Contact us today to start a discussion about your procurement requirements and explore how our 35% H₂O₂ can benefit your water purification processes.

References

  • "Handbook of Water and Wastewater Treatment Technologies" by G. Leslie Amy, Carol A. Herbes, and W. Andrew Jackson.
  • "Water Chemistry" by Frank J. Millero.
  • "Advanced Oxidation Processes for Water and Wastewater Treatment" by Suresh P. N. Cherukuri and Muthusamy Palanivelu.