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BS EN 12255-4:2023 – TC

BS EN 12255-4:2023 – TC

$258.95

Tracked Changes. Wastewater treatment plants – Primary treatment

Published By Publication Date Number of Pages
BSI 2023 68
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This document specifies the design requirements for plant and equipment to remove solids, other than screenings and grit, from raw wastewater, at wastewater treatment plants for over 50 PT. It includes primary treatment with sedimentation, fine screens and micro-screens NOTE 1 The removal of screenings and grit, are covered in EN 12255, Part 3. NOTE 2 Dissolved air flotation (DAF) is not covered in detail in this document because it is not commonly used for primary treatment in municipal wastewater treatment plants. It may be used for primary treatment of industrial wastewater, but then the design is specific to the application.

PDF Catalog

PDF Pages PDF Title
1 30471236
39 A-30422945
40 undefined
46 1 Scope
2 Normative references
3 Terms and definitions
47 4 Symbols and abbreviations
5 Requirements
5.1 General
48 5.2 Planning
5.2.1 Required Data and Information
50 5.2.2 Advantages and Disadvantages of Primary Treatment Systems
51 5.2.3 Performance
52 5.3 Design
5.3.1 General
5.3.2 Specifications
5.3.3 Required Capacity
5.3.4 Systems for primary treatment
5.3.4.1 Primary Clarifiers
55 5.3.4.2 Lamella Separators
56 5.3.4.3 Micro-screens
5.3.4.4 Rotary drum screens
5.3.4.5 Belt screens
5.3.4.6 Information from micro-screen suppliers
57 5.3.5 Materials
5.3.6 Control and Automation
5.3.7 Operation and Maintenance
5.3.8 Health and Safety
58 Annex A (informative)Illustrations of typical clarifiers
66 Annex B (normative)Dimensions and tolerances for the structures of clarifiers
B.1 Circular clarifiers with scrapers
B.2 Rectangular clarifiers with scrapers

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BS EN 12255-4:2023 - TC
$258.95