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Technical features

Showing 112 of 56 technical features
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Features water reuse fig 3
Feature
14 March 2022

Water reuse – where have we got to?

Water reuse refers to the reclamation, purification and reuse/recycling of wastewater from municipal or industrial processes. There are three types of water reuse applications: non-potable reuse, indirect potable reuse, and direct potable reuse.

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Southern Water’s Woolston wastewater treatment works - Darren checking the HMI
Feature
01 December 2021

Down by the river: the MBR at Woolston WwTW

The 37 MLD MBR at Woolston, UK, is an example of an imaginative plant design for an intensive process technology being implemented within a very small footprint. We were shown round the site to look at all the various inter-connected elements first-hand.

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ZeeLung MABR cassette installation at Spernal
Feature
20 September 2021

The ZeeLung MABR technology: the story so far

The membrane-aerated biofilm reactor (MABR) − like the ZeeLung MABR − is a fixed film process where the biofilm is fed with oxygen via the membrane on which the biofilm sits. It is a version of a fixed film process rather than a suspended growth one.

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Fig 1.  Project stakeholders and their interactions
Feature
28 May 2021

Systems integration: Putting it all together

The design of a centralised unit to control the complete multi-step process in a WWTP is the job of the systems integrator. The SI is responsible for linking the individual control systems, as well as the commissioning and start-up of the installed plant.

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Feature clogging mitigation fig 5
Feature
15 February 2021

Clogging mitigation through MBR membrane module design

Some clogging occurs in most MBR systems regardless of membrane module type or geometry. Prevention or control measures are typically considered at the system design level and during operation but even with adequate pre-treatment, clogging can still occur.

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Feature ragging propensity fig 8
Feature
08 December 2020

Ragging in MBRs − how do rags form?

Ragging is a type of clogging, where clogging relates to agglomeration of solids in the membrane tank. In the case of ragging, filament solids from textile materials join together to form long braids which are mechanically stable in the mixed liquor.

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