How much does an MBR cost? The relative cost of an MBR vs an SBR

Operational experience at La Center WWTP in Washington, USA indicates that the cost of MBR technology may be lower than that of a conventional biological treatment process, despite the higher energy demand. La Center is a small city in Clark County, Washington, USA, with a population of 3,100. The wastewater treatment works at the town was originally constructed in 1967

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Feasibility, optimisation and costs | Alternative membrane technologies and applications

Effects of ferric and ferrous iron addition on membrane bioreactor effluent quality

Municipal wastewater usually contains between 4 and 12 mg/L total phosphorus (TP) concentrations in the range 4−12 mg/L. A conventional activated sludge process (CAS) can take this down to 2−4 mg/L, or 0.5−1 mg/L if an enhanced biological phosphorus removal (BPR) process is used. To achieve the levels required to suppress eutrophication, however, demands P levels of 0.01−0.3 mg/L

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Pre-treatment and post-treatment | Water quality and treatability

The 2015 MBR Survey results

In February 2015, we asked you to contribute to our MBR survey, with a view to sharing knowledge and experiences about the common technical issues that prevent MBRs working as they should, as well as your views about the future for MBR technology.

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Immersed anaerobic MBRs: are they viable?

There has been a recent surge of interest in anaerobic MBRs. The technology provides the potential for removing COD with a net energy benefit from the methane generated, albeit without nutrient removal. Interest within academia is evidenced by the publication of five independent reviews of the subject in various learned journals in 2012 alone.

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Feasibility, optimisation and costs | Water quality and treatability | Alternative membrane technologies and applications