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BS EN 12255-3:2024 – TC

BS EN 12255-3:2024 – TC

$217.84

Tracked Changes. Wastewater treatment plants – Preliminary treatment

Published By Publication Date Number of Pages
BSI 2024 88
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This document specifies design principles and performance requirements for preliminary wastewater treatment using screens with a mesh size above 50 μm, 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
49 undefined
55 1 Scope
2 Normative references
3 Terms and definitions
57 4 Symbols, abbreviations and indices
59 5 Planning
60 6 Screening
6.1 General
61 6.2 Design of structures
62 6.3 Screen design
6.3.1 General
64 6.3.2 Hydraulic design
66 6.3.3 Mechanical design
67 7 Screenings treatment
7.1 General
68 7.2 Structural design
7.3 Design of screenings treatment equipment
7.3.1 General
69 7.3.2 Mechanical design
70 7.4 Screenings disposal/container loading
71 8 Grit removal
8.1 General
72 8.2 Structural design
8.3 Design of grit removal equipment
8.3.1 General and performance requirement
73 8.3.2 Mechanical design
9 Grit treatment
9.1 General
74 9.2 Structural design
75 9.3 Design of grit treatment equipment
9.3.1 General and performance requirement
9.3.2 Mechanical design
76 10 Grease and oil separation
11 Flow balancing and flow splitting
12 Materials
77 13 Control and automation requirements
78 14 Operation and maintenance requirements
15 Health and safety requirements
79 Annex A (normative)Testing of the washing performance of screenings wash-presses (refers to 7.3.1)
80 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
81 B.1.2 Detailed description of the testing procedure
83 B.1.3 Alternative sampling procedures
84 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 - TC
$217.84