Loading patent…
AssigneeITT Manufacturing Enterprises, Inc.
InventorsMichael A. Dimitriou, Joseph G. Krall, David Rice, Velupillai Yogendran, Roger J. Byrne, Kenneth P. George, John E. Koch, III
Estimating the term…
A membrane filtration system comprising one or more submerged ultrafiltration or microfiltration membrane assemblies at ambient pressure, each membrane assembly positioned 100–240 mm from a nearest wall, baffle, or adjacent membrane assembly and no more than 1 meter above a floor and at least 150 mm below the liquid level. Mixed liquor is discharged underneath each membrane assembly to create a vertical flow velocity in a range of 1–8 mm/second along an entire length of the membrane assembly. In a sequenced batch reactor system, a coarse bubble air diffuser for scouring each membrane assembly is supplied with air only during the backwash cycle of the filtration system and not during the filtration cycle. In a membrane bioreactor system, the biological treatment section is physically separated from the filtration section and fine bubble air diffusion is used in the biological treatment section.
A process for treating effluent in a sequenced membrane batch reactor (SMBR) comprising;
A method of efficiently operating an ultrafiltration or microfiltration membrane assembly submerged in liquid to be filtered by the membrane at ambient pressure, the method comprising:
A process for treating effluent comprising the steps of:
In a process for treating effluent comprising a biological treatment process in which filtrate is drawn through one or more ultrafiltration or microfiltration membrane assemblies submerged in mixed liquor at ambient pressure and in which aeration is provided for scouring the membrane and for providing oxygen transfer, an improvement comprising:
Dependencies are inferred from the claim text.