关键词: 海上平台, 生活污水处理装置, 生化法, 电解法

Abstract: There are many types of domestic sewage treatment plants on offshore platform,yet there’s still a lack of comprehensive and systematic comparative study on these types of plants.This causes troubles in the selection of the plants.This paper selected 54 platforms from the Bohai Sea,East China Sea,South China Sea and North Bay for research and on-site monitoring.It makes a comprehensive comparison on ten most concerned aspects in the type selection of domestic sewage treatment plants covering effluent water quality,effluent stability,floor area,one-time investment,maintenance cycle,maintenance cost,maintenance difficulty,energy consumption,frequency of failure and treatment capacity.The results show that biochemical method has obvious economic advantages,but in effluent water quality,floor area,maintenance,failure rate and treatment capacity,biochemical method is inferior to the electrolysis device.Combining with the characteristics of offshore platforms,the electrolysis method is recommended to be the first choice for domestic sewage treatment plants.

Key words: Offshore platform, Domestic sewage treatment plant, Biochemical process, Electrolytic process