Membrane separation, a new technology for removing VOCs including pervaporation, vapor permeation, membrane contactor, and membrane bioreactor was presented. Comparing with traditional techniques, these special techni...Membrane separation, a new technology for removing VOCs including pervaporation, vapor permeation, membrane contactor, and membrane bioreactor was presented. Comparing with traditional techniques, these special techniques are an efficient and energy saving technology. Vapor permeation can be applied to recovery of organic solvents from exhaust streams. Membrane contactor could be used for removing or recovering VOCs from air or wastewater. Pervaporation and vapor permeation are viable methods for removing VOCs from wastewater to yield a VOC concentrate which could either be destroyed by conventional means, or be recycled for reuse.展开更多
The petrochemical industry,one of the fastest-growing sectors,is projected to continue expanding in the coming years.As environmental regulations tighten and demand for cleaner production increases,the petrochemical i...The petrochemical industry,one of the fastest-growing sectors,is projected to continue expanding in the coming years.As environmental regulations tighten and demand for cleaner production increases,the petrochemical industry is compelled to adopt environmentally sustainable technologies and advanced wastewater treatment solutions.Petrochemical wastewater contains a range of pollutants,including petroleum hydrocarbons,emulsified oils,phenols,ammonia,sulfides,and other organic compounds.These contaminants often occur in complex physicochemical forms at discharge,posing significant environmental risks.Conventional biological and physicochemical treatments frequently fail to meet stringent discharge standards because of limited resilience to load fluctuations,restricted biodegradability,and secondary sludge generation.Advanced treatment has therefore become essential for petrochemical wastewater management.Among available options,adsorption,membrane separations,and advanced oxidation processes stand out for their performance.Adsorption excels at removing heavy metals and recalcitrant organics owing to diverse sorbent chemistries and operational simplicity.Membrane technologies achieve molecular-level selectivity with high water recovery potential.Catalytic ozonation effectively mineralizes refractory pollutants and enhances subsequent biodegradability.Current research highlights innovations in graphene-based adsorbents,ceramic nanofiltration membranes,and multifunctional catalysts that improve treatment efficiency,stability,and reusability.This review synthesizes recent advances in the deep treatment of petrochemical wastewater,outlines research priorities for evaluating the effectiveness of these technologies in oil-based wastewater management,and provides reference for research and application in this field.展开更多
基金TheNationalNaturalScienceFoundationofChina (No .2 9836 16 0 )
文摘Membrane separation, a new technology for removing VOCs including pervaporation, vapor permeation, membrane contactor, and membrane bioreactor was presented. Comparing with traditional techniques, these special techniques are an efficient and energy saving technology. Vapor permeation can be applied to recovery of organic solvents from exhaust streams. Membrane contactor could be used for removing or recovering VOCs from air or wastewater. Pervaporation and vapor permeation are viable methods for removing VOCs from wastewater to yield a VOC concentrate which could either be destroyed by conventional means, or be recycled for reuse.
基金supported by the National Natural Science Foundation of China(22172068)the International Industrial Technology Research and Development Project of Liaoning Province(2025JH2/101900006)the Science and Technology Innovation Teams of the Talent Revi-talization Program of Liaoning Province(XLYC2404022).
文摘The petrochemical industry,one of the fastest-growing sectors,is projected to continue expanding in the coming years.As environmental regulations tighten and demand for cleaner production increases,the petrochemical industry is compelled to adopt environmentally sustainable technologies and advanced wastewater treatment solutions.Petrochemical wastewater contains a range of pollutants,including petroleum hydrocarbons,emulsified oils,phenols,ammonia,sulfides,and other organic compounds.These contaminants often occur in complex physicochemical forms at discharge,posing significant environmental risks.Conventional biological and physicochemical treatments frequently fail to meet stringent discharge standards because of limited resilience to load fluctuations,restricted biodegradability,and secondary sludge generation.Advanced treatment has therefore become essential for petrochemical wastewater management.Among available options,adsorption,membrane separations,and advanced oxidation processes stand out for their performance.Adsorption excels at removing heavy metals and recalcitrant organics owing to diverse sorbent chemistries and operational simplicity.Membrane technologies achieve molecular-level selectivity with high water recovery potential.Catalytic ozonation effectively mineralizes refractory pollutants and enhances subsequent biodegradability.Current research highlights innovations in graphene-based adsorbents,ceramic nanofiltration membranes,and multifunctional catalysts that improve treatment efficiency,stability,and reusability.This review synthesizes recent advances in the deep treatment of petrochemical wastewater,outlines research priorities for evaluating the effectiveness of these technologies in oil-based wastewater management,and provides reference for research and application in this field.
