Analysis on the Operation Effect of Filtration Tanks with Different Structures in Oil-containing Wastewater Treatment Plants
With the continuous expansion of three-phase production development,the effluent from wastewater treatment systems becomes increasingly complex,leading to issues in the operation of oil-containing wastewater treatment stations'filtration tanks.Problems such as pressure build-up,loss of filter media,poor treatment effects,internal component damage,and corrosion have significantly impacted normal production and the attainment of water quality standards.Additionally,the variety of filtration tank types constructed at different times,with differing main structures,necessitates an evaluation of their adaptability to water quality.To address these challenges,the article conducts a survey on the structural types and issues of in-use filtration tanks at an oilfield oil-containing wastewater treatment station.Combining oil removal rates and failure rates to analyze and compare operational performance,the main influencing factors causing problems are identified.The study concludes that the use of upper and lower screen pipe structure filtration tanks for water flooding wastewater stations and upper screen basket,lower screen pipe structure filtration tanks for polymer flooding wastewater stations show better results.This conclusion provides technical support for future filtration tank renovations and selections.
polymer-containing sewagefilter tank structureexisting problemsimprovement sug-gestion