过硫酸钠为强氧化剂，可用作氧化剂，可将Cr3+、Mn2+等氧化成相应的高氧化态化合 物，当有Ag+存在时，可促进上述氧化反应；利用其氧化性可用作漂白剂、金属表面处理剂、化学试剂；医药原料；电池、乳液聚合反应的促进剂和引发剂。如活化过硫酸钠可用于原位修复石油类污染土壤的工程，过硫酸钠可以在未受污染的土壤环境中稳定存在，在纯砂石含水层中过硫酸钠可以稳定存在达2 年之久，如果含水层土壤中含有2%的Fe( Ⅲ) 或Mn( Ⅳ) ，则过硫酸钠可以存在1 年。
Sodium persulfate is a strong oxidant and can be used as an oxidant. It can oxidize Cr3+, Mn2+, etc. into corresponding high-oxidation compounds. When Ag+is present, it can promote the above oxidation reaction; It can be used as bleaching agent, metal surface treatment agent and chemical reagent by using its oxidizing property; Pharmaceutical raw materials; Promoter and initiator for battery and lotion polymerization. For example, activated sodium persulfate can be used for in-situ remediation of petroleum-contaminated soil. Sodium persulfate can be stable in the uncontaminated soil environment, and sodium persulfate can be stable in the pure sand aquifer for up to 2 years. If the aquifer soil contains 2% Fe (Ⅲ) or Mn (Ⅳ), sodium persulfate can exist for 1 year.
如果土壤中含有较多的铁、锰氧化物，或者土壤性质为黏土，过硫酸钠的半衰期会缩短几天。但是未活化过硫酸钠在低渗透性土壤中也有较好的修复效果，如经过240 d 监测模拟装置中过硫酸钠的传输和扩散情况，结果95%—99%的苯系物被去除。
If the soil contains more iron and manganese oxides, or the soil is clay, the half-life of sodium persulfate will be shortened to a few days. However, unactivated sodium persulfate also has good remediation effect in low permeability soil. For example, after 240 days of monitoring the transmission and diffusion of sodium persulfate in the simulation device, 95% - 99% of the benzene series were removed.
过硫酸钠会和土壤中的还原性物质发生反应导致修复效率的降低，这些还原性物质包括：有机质；含Fe( Ⅱ) 矿物，如云母、闪石、辉石、黄铁矿、菱铁矿等；含Mn( Ⅱ，Ⅲ) 矿物，如菱锰矿、黑锰矿等；含S( Ⅰ、Ⅱ) 矿物，如黄铁矿、四方硫铁矿等；含As 及Cr( Ⅲ) 矿物等。更进一步指出有机质、含铁、锰、硫等矿物为主要还原性物质。
Sodium persulfate will react with reducing substances in the soil, which will reduce the remediation efficiency. These reducing substances include: organic matter; Fe (II) containing minerals, such as mica, amphibole, pyroxene, pyrite, siderite, etc; Containing Mn (II, III) minerals, such as rhodochrosite and black manganese ore; Containing S (I, II) minerals, such as pyrite, tetragonal pyrite, etc; Containing As and Cr (III) minerals. It is further pointed out that organic matter, iron, manganese, sulfur and other minerals are the main reducing substances.
目前已有多家国外企业开发了用于原位土壤修复的过硫酸钠试剂( Regensis 公司的Persulf Ox、FMC 公司的Klozur Persulfate、PermeOx Ultra 和Klozur CR、EthicalChem 公司的S-ISCO，
At present, many foreign enterprises have developed sodium persulfate reagents for in-situ soil remediation (Persulf Ox of Regensis, Klozur Persulfate, PermeOx Ultra and Klozur CR of FMC, S-ISCO of EthicalChem,
公司的VeruSOL 等) ，这些一体化的修复试剂由过硫酸钠、过氧化钙、氧化钙、Fe 粉、含铁化合物、生物表面活性剂和助溶剂等组成。可以在注入到污染区域后自活化产生自由基，减少了后续活化剂的注入和污染物的迁移。这些试剂已经被成功地应用于实际石油类污染土壤原位修复工程中，得到了较好的去除效果。
VeruSOL, etc.), these integrated repair reagents are composed of sodium persulfate, calcium peroxide, calcium oxide, iron powder, iron-containing compounds, biosurfactants and cosolvent. It can self-activate and generate free radicals after injection into the contaminated area, reducing the injection of subsequent activator and the migration of pollutants. These reagents have been successfully applied to the actual oil contaminated soil in-situ remediation project, and have achieved good removal effect.
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