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BS EN 12255-3:2024

BS EN 12255-3:2024

$167.15

Wastewater treatment plants – Preliminary treatment

Published By Publication Date Number of Pages
BSI 2024 40
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This document specifies design principles and performance requirements for preliminary wastewater treatment using screens with a mesh size above 50 Ī¼m, at plants serving more than 50 PT. It also includes grit removal and grease separation. NOTE 1 For micro-screens with a mesh size below 50 microns see EN 12255-16. NOTE 2 The primary application of this document is for wastewater treatment plants designed for the treatment of domestic and municipal wastewater. However, it contains information that can also be useful for commercial and industrial wastewater pretreatment and for combined sewer overflows (CSO). This document applies in combination with EN 12255-1 and EN 12255-10.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols, abbreviations and indices
12 5 Planning
13 6 Screening
6.1 General
14 6.2 Design of structures
15 6.3 Screen design
6.3.1 General
17 6.3.2 Hydraulic design
19 6.3.3 Mechanical design
20 7 Screenings treatment
7.1 General
21 7.2 Structural design
7.3 Design of screenings treatment equipment
7.3.1 General
22 7.3.2 Mechanical design
23 7.4 Screenings disposal/container loading
24 8 Grit removal
8.1 General
25 8.2 Structural design
8.3 Design of grit removal equipment
8.3.1 General and performance requirement
26 8.3.2 Mechanical design
9 Grit treatment
9.1 General
27 9.2 Structural design
28 9.3 Design of grit treatment equipment
9.3.1 General and performance requirement
9.3.2 Mechanical design
29 10 Grease and oil separation
11 Flow balancing and flow splitting
12 Materials
30 13 Control and automation requirements
31 14 Operation and maintenance requirements
15 Health and safety requirements
32 Annex A (normative)Testing of the washing performance of screenings wash-presses (refers to 7.3.1)
33 Annex B (informative)Testing procedures
B.1 Testing procedure for the removal ratio of prefabricated grit separators (refers to 8.3.1)
B.1.1 Test verification
34 B.1.2 Detailed description of the testing procedure
36 B.1.3 Alternative sampling procedures
37 B.2 Testing procedures for grit treatment equipment (refers to 9.3.1)
B.2.1 Product quality testing
B.2.2 Testing of the grit removal ratio

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BS EN 12255-3:2024
$167.15