The acceleration of industrialization has exacerbated soil pollution, posing severe threats to ecological balance and human health. Against this backdrop, efficient and eco-friendly soil remediation technologies have become crucial solutions. Sodium Persulfate, as a high-performance oxidant for soil remediation, provides strong support for soil restoration efforts.

Ⅰ. Applications of Sodium Persulfate in Soil Remediation

Sodium Persulfate can decompose organic pollutants in soil—such as petroleum hydrocarbons and polycyclic aromatic hydrocarbons (PAHs)—through its active substances. It can also transform the forms of heavy metals like lead, cadmium, and mercury to reduce their harm.

In practical use, Sodium Persulfate can be directly added to soil, where it contacts pollutants through infiltration and diffusion. Alternatively, it can be mixed into a solution and injected directly into contaminated areas via grouting, enabling rapid pollutant decomposition. Either method yields significant remediation effects in a relatively short time, making it an efficient soil purification tool.

Fujian ZhanHua Chemical produces Sodium Persulfate with high purity and excellent oxidative activity, earning recognition in the market. Through sophisticated production processes and strict quality control systems, the company ensures that each batch of Sodium Persulfate fully 发挥 its advantages in soil remediation, providing reliable material support for restoration projects.

(Ⅰ) Powerful Pollutant Decomposition Capacity

As a strong oxidant, Sodium Persulfate effectively breaks down various organic pollutants, including PAHs and petroleum hydrocarbons. These pollutants are typically highly toxic and persistent, and traditional remediation methods often struggle to remove them completely. During soil remediation, Sodium Persulfate releases reactive oxygen species—free radicals with extremely strong oxidizing properties. These radicals efficiently degrade recalcitrant pollutants in a short time, converting them into harmless substances or small molecules easily decomposed by soil microorganisms, thereby significantly reducing the content of organic pollutants in soil.

(Ⅱ) Significant Transformation Effects on Heavy Metals

Heavy metal pollution in soil is another major challenge. Heavy metals usually exist in soluble or adsorbed forms, posing potential threats to plant growth and groundwater safety. Sodium Persulfate primarily targets specific redox-active heavy metals. As a strong oxidant, it can oxidize certain heavy metals from low-valent to high-valent states. High-valent heavy metals tend to form more stable, less soluble compounds, thus reducing their mobility and bioavailability.

(Ⅲ) Prominent Environmental Friendliness

Compared to traditional chemical remediation agents, Sodium Persulfate offers certain eco-friendly advantages during use. On one hand, it generally does not introduce new harmful organic pollutants. On the other hand, its main degradation product—sulfate—is relatively low-toxic, and it causes less damage to soil physical structure than some strong acid or alkali-based remediation agents. This allows it to better preserve the original functions of soil (such as permeability and water retention) during remediation, creating favorable conditions for the recovery of soil ecosystems.

However, potential environmental impacts must be addressed when using Sodium Persulfate for soil remediation. For example, the sulfate ions (SO₄²⁻) produced after reaction may significantly lower soil pH (acidification); excessive use can increase soil salinity, potentially adverse to plant growth and soil microbial activity. Therefore, in practical applications, assessments based on soil background conditions (e.g., pH, buffer capacity, salinity) are necessary. When required, follow-up measures such as pH adjustment (e.g., adding lime) or leaching for desalination should be adopted to control these side effects.

Sodium Persulfate demonstrates significant value in soil remediation due to its efficient degradation of organic pollutants, potential for oxidizing and stabilizing specific redox-active heavy metals (e.g., lead, mercury), and relatively low environmental risks under controlled conditions. It not only provides an efficient technical pathway for addressing complex soil pollution but also strengthens the defense line for protecting soil ecosystems and human health.

As a high-quality supplier of Sodium Persulfate, Fujian ZhanHua Chemical focuses on providing stable and reliable basic materials for soil remediation and other fields. Through in-depth collaboration with research institutions, the company continuously optimizes product performance, enabling Sodium Persulfate to better adapt to various remediation processes and function effectively in complex soil environments. In the future, Fujian ZhanHua Chemical will continue to drive innovation through technology, offering higher-quality persulfate raw materials to support the development of soil remediation initiatives.