S.R. CWA 15897:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General system - requirements
   4.1 Basic considerations
   4.2 Pre-treatment and internal sieving
   4.3 Characteristics of biological systems used in MBR plants
        4.3.1 General
        4.3.2 Mixed liquor suspended solids (MLSS)
        4.3.3 Hydraulic retention time (HRT (or detention time))
        4.3.4 Sludge age (or sludge retention time (SRT))
        4.3.5 Chemical phosphorus removal
        4.3.6 Aeration
   4.4 Membrane filtration system
   4.5 Mixed liquor recirculation
   4.6 Permeate extraction system
   4.7 Desired effluent quality
5 Material characteristics
   5.1 General
   5.2 Porous membranes
6 Configuration
   6.1 Flat Sheet
   6.2 Hollow fibre
7 Design and operating parameters
   7.1 General
   7.2 Influent characteristics
   7.3 Fouling
   7.4 Transmembrane pressure
   7.5 Permeability
   7.6 Integrity
8 Acceptance, commissioning and monitoring tests
9 Information and Documentation
10 Interchangeability
   10.1 Principle
   10.2 General
   10.3 Process flow diagram (PFD)
   10.4 Scope of supply
   10.5 Interchangeability aspects
        10.5.1 General
        10.5.2 Membrane type
        10.5.3 Layout
        10.5.4 Tank
        10.5.5 Draining and flushing
        10.5.6 Integrity check
        10.5.7 Accessibility and maintainability
        10.5.8 Chemical cleaning
        10.5.9 Process control system (PLC)
Annex A (normative) Information and documentation
Annex B (informative) Example for clean water permeability test
      B.1 Abstract
      B.2 Materials and methods
          B.2.1 Measuring apparatus
          B.2.2 Measuring procedure
Annex C (informative) Example for vacuum leak test
      C.1 Abstract
      C.2 Materials and methods
          C.2.1 Measuring apparatus
          C.2.2 Measuring procedure
Annex D (informative) Example for pore diameter measurement
      D.1 Abstract
      D.2 Materials and methods
          D.2.1 Latex solution
          D.2.2 Measuring apparatus
          D.2.3 Measuring procedure
Annex E (informative) Paper filtration measurement
      E.1 Objective
      E.2 Measuring method
Annex F (informative) Impact of pore size distribution on
        membrane fouling
Bibliography

Describes terms commonly used in the field of membrane bioreactor technology.