许多油田在油气储运、加工过程中产生的含油污水里,都存在一些低含量的H_2S。其含量一般从几毫克/升至几十毫克/升不等。这些H_2S可能是自然存在于水中,也有可能是由于硫酸盐还原菌活动的结果。在对油田含油污水进行处理以及回注利用的过程中,H_2S的存在是十分有害的。H_2S能引起污水处理系统和注水系统的设备与管线的严重腐蚀,而这些腐蚀的生成物会 In many oil fields, there are some low levels of H 2 S in the oil-contaminated water produced during the process of oil and gas storage and transportation. Its content is generally from a few milligrams / liter to tens of milligrams / liter range. These H2S may be naturally present in the water, may also be due to the activity of sulfate-reducing bacteria. The presence of H2S is very detrimental in the treatment of oily wastewater in oilfields and in the re-injection. H 2 S can cause serious corrosion of equipment and pipelines of sewage treatment systems and water injection systems, and these corrosion products