In oil extraction, wastewater treatment is a key link to ensure the green development of the industry. Such wastewater contains various organic substances including crude oil, resins, asphaltenes, and residual oil recovery additives carried over during the extraction process, resulting in high chemical oxygen demand (COD). The effective degradation of COD determines whether the wastewater can be safely discharged or recycled. As a high-performance oxidizing material, sodium persulfate (Na₂S₂O₈) demonstrates unique advantages in COD degradation treatment of oil extraction wastewater by virtue of its intrinsic material properties and strong oxidizing capacity. As a professional sodium persulfate supplier, the sodium persulfate produced by Fujian Zhanhua Chemical provides high-quality material support for wastewater treatment with its premium specifications.
Ⅰ. Strong Oxidation Activity, Adapting to Complex Contamination Scenarios
Oil extraction wastewater features complex compositions, containing a variety of organic pollutants with stable structures. Moreover, the water quality fluctuates significantly affected by extraction processes and geological conditions, imposing stringent requirements on the adaptability and oxidation intensity of oxidants. Sodium persulfate itself has strong oxidizing properties and can be activated through multiple methods such as heat, light, and transition metal ions to generate highly reactive sulfate radicals. These radicals can effectively attack the molecular structures of organic compounds, converting macromolecular refractory pollutants into small-molecule substances, thereby improving the biodegradability of wastewater and meeting the treatment needs of oil wastewater with variable water quality.
Ⅱ. Reliable Purity and Quality, Ensuring Stable Degradation Effects
As the core material for oxidative degradation, the purity of sodium persulfate directly affects the treatment efficiency and the risk of secondary pollution. The sodium persulfate produced by Fujian Zhanhua Chemical has a purity of ≥99% and extremely low impurity content (Fe ≤0.0010%, Mn ≤0.0001%, Chloride ≤0.005%), which can avoid adverse effects caused by impurity participation in reactions, ensure the purity of the oxidative degradation process, improve oxidation efficiency, and guarantee the stability and reliability of COD degradation effects. Sodium persulfate has low hygroscopicity and good storage stability in dry environments, enabling it to maintain excellent oxidation performance for a long time. However, it may still absorb moisture and agglomerate, which can be avoided by controlling storage conditions, thus providing stable support for the continuous treatment of oil extraction wastewater. Fujian Zhanhua Chemical strictly controls all production links, and the product purity meets high-standard requirements, laying a solid quality foundation for degradation effects.
Ⅲ. Excellent Environmental Compatibility, Safe and Free from Secondary Pollution
One of the core principles of wastewater treatment is to avoid secondary pollution, which is also a key criterion for measuring the practicality of treatment materials. During the oxidative degradation process, the main reaction products of sodium persulfate are sodium sulfate (Na₂SO₄), carbon dioxide, and water, without releasing toxic and harmful by-products. The post-reaction products are environmentally friendly and will not easily cause secondary pollution to water bodies and soil. In addition, sodium persulfate is not flammable, although it is combustible-supporting. As long as it is stored and used in accordance with specifications (kept away from fire sources and reducing agents, and stored separately), operational safety can be guaranteed. Under appropriate concentrations and operating conditions, it has good compatibility with equipment made of common corrosion-resistant materials (such as stainless steel and plastics), which not only conforms to the green and environmental protection treatment concept but also reduces the comprehensive cost of wastewater treatment. Fujian Zhanhua Chemical always prioritizes environmental attributes in product R&D and production, giving full play to the safety advantages of sodium persulfate.
Ⅳ. Wide Application Scenarios, Convenient Operation and Storage
Sodium persulfate has a wide range of applications covering water treatment, chemical synthesis and other fields. In oil extraction wastewater treatment, it does not require exclusive complex equipment, is compatible with most existing wastewater treatment systems, and can be flexibly integrated into different treatment processes. Its dosing method is simple and flexible, without the need for professional and complex operation skills; the dosage is easy to control and can be precisely adjusted according to the COD concentration of wastewater, adapting to the batch treatment needs of oil extraction sites and improving the overall efficiency of wastewater treatment.
Meanwhile, the product can be stored relying on the enterprise's existing hazardous chemical storage facilities, without the need for additional special storage equipment. In daily storage, it is necessary to strictly follow the standardized control measures of moistureproofing, ventilation, keeping away from reducing substances and fire sources, and ensure sealed storage and environmental temperature and humidity monitoring, so as to guarantee storage safety and performance stability, further reducing the comprehensive operation cost of enterprises and improving the overall efficiency of wastewater treatment.
In the COD degradation of oil extraction wastewater, the strong oxidation activity, reliable purity and quality, excellent environmental compatibility, and convenient application characteristics of sodium persulfate jointly constitute its core competitive advantages. For the oil industry, such an oxidizing material with both effectiveness and practicality is not only an effective means to solve the current wastewater treatment problems, but also conforms to the long-term demand for sustainable development of the industry. The sodium persulfate produced by Zhanhua Chemical, with the advantages of high purity, low impurities and stable performance, provides reliable material guarantee for COD degradation of oil extraction wastewater, helping the oil industry achieve green extraction and discharge up to standard.