Application Overview
Petrochemical industry uses oil as the raw material. It is a organic producing process with cracking, refining, fractionation, reforming, synthesis and other process. Refining of per ton crude oil should consume 30 to 50 tons water. The produced water are complicated, has large fluctuations in water quality and quantity, large amount of wastewater and high concentration of organic matters, which can cause serious environmental pollution. With the increase of industrial water consumption and the growing scarcity of water resources, wastewater treatment and reuse has been paid more and more attention, the petrochemical wastewater treatment technology gradually become a research hotspot.
Dual membrane (UF and RO) process is used to treat pretreated petrochemical wastewater to reach the purpose of water reuse. Pretreatment and biological treatment can remove a large number of biodegradable organic matters. UF system uses external hollow fiber membrane modules, which can remove suspended solids, bacteria and macromolecular substances, increases the residence time of nondegradable substances, while minimizes the fouling risk of reverse osmosis membrane. Finally, by reverse osmosis desalination, wastewater can be recycled.
Process Diagram
Advantages
1. High concentration of activated sludge enhances the treatment effect of organic matter in the system.
2. Nitrification and denitrification effect is remarkable in system.
3. Effective interception effect on microorganisms and various bacteria.
4. Stable RO system produced water quality, reaches to the reuse standards.
5. Greatly increased the flux of RO system, reduced the cleaning frequency, extended the membrane service life.
6. Small footprint, treatment and reuse in place, reduce investment, conducive to industrialization.
7. Backwashing online, excellent flux recovery.
8. Equipment is easy to control and the system operates automatically.
9. Dual membrane process with stable quality and quantity of effluent water, can meet the recycling requirements, has obvious economic benefits.
Application Overview
Petrochemical industry uses oil as the raw material. It is a organic producing process with cracking, refining, fractionation, reforming, synthesis and other process. Refining of per ton crude oil should consume 30 to 50 tons water. The produced water are complicated, has large fluctuations in water quality and quantity, large amount of wastewater and high concentration of organic matters, which can cause serious environmental pollution. With the increase of industrial water consumption and the growing scarcity of water resources, wastewater treatment and reuse has been paid more and more attention, the petrochemical wastewater treatment technology gradually become a research hotspot.
Dual membrane (UF and RO) process is used to treat pretreated petrochemical wastewater to reach the purpose of water reuse. Pretreatment and biological treatment can remove a large number of biodegradable organic matters. UF system uses external hollow fiber membrane modules, which can remove suspended solids, bacteria and macromolecular substances, increases the residence time of nondegradable substances, while minimizes the fouling risk of reverse osmosis membrane. Finally, by reverse osmosis desalination, wastewater can be recycled.
Process Diagram
Advantages
1. High concentration of activated sludge enhances the treatment effect of organic matter in the system.
2. Nitrification and denitrification effect is remarkable in system.
3. Effective interception effect on microorganisms and various bacteria.
4. Stable RO system produced water quality, reaches to the reuse standards.
5. Greatly increased the flux of RO system, reduced the cleaning frequency, extended the membrane service life.
6. Small footprint, treatment and reuse in place, reduce investment, conducive to industrialization.
7. Backwashing online, excellent flux recovery.
8. Equipment is easy to control and the system operates automatically.
9. Dual membrane process with stable quality and quantity of effluent water, can meet the recycling requirements, has obvious economic benefits.
