British Standards Institution

Source:: ISO
Committee:: LBI/50 - Fine Bubble Technology (FBT)
Categories:: Information management | Standardization. General rules | Measurement and Science | Mathematics. Natural Sciences | Physics. Chemistry

Scope

This document describes the test methodology to evaluate the aeration performance of fine bubble jet devices. The evaluation is based on measuring the mass transfer coefficient of oxygen from the gas to water.

Purpose

The recent progress in the application of fine bubble technology exhibits successes in the various technical fields. Fine bubble jet devices are generally applied in aeration process to improve the oxygen transfer from gas phase to liquid phase in the environmental engineering fields, such as wastewater treatment and water ecological restoration. The utilized fine bubble jet devices are operated in ejector mode (self-aspiration) or injector mode (pressurize oxygen supply). The mode of operation affects the achievable mass transfer and its energy efficiency. To evaluate aeration device performance there is need for using the standard method for oxygen transfer measurements and it can be applied for all types of fine bubble jet devices. This document is intended to specify the test procedure to be applied to the fine bubble jet devices for oxygen aeration uses.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

13/02/2023

Proposal end date:

04/04/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

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Standards Development

ISO/PWI 4240-2 Fine bubble technology -- Environmental applications -- Part 2: Test method for evaluating aeration performances

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