NEN EN 12255-4 : 2002
Current
The latest, up-to-date edition.
WASTEWATER TREATMENT PLANTS - PART 4: PRIMARY SETTLEMENT
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General
4.2 Planning
4.3 Process
4.3.1 General
4.3.2 Required Capacity
4.3.3 Upward Flow Tanks (including Imhoff
Tanks)
4.3.4 Horizontal Flow Tanks
4.3.5 Lamella Separator
4.3.6 Sludge Collection and Removal
4.3.7 Scum Removal
4.4 Maintenance
4.5 Health and Safety
Bibliography
Describes the performance requirements for the primary settlement of wastewater at wastewater treatment plants for over 50 PT. The primary application is for wastewater treatment plants designed for the treatment of domestic and municipal wastewater.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Standards | Relationship |
| NF EN 12255-4 : 2002 | Identical |
| ONORM EN 12255-4 : 2002 | Identical |
| BS EN 12255-4:2002 | Identical |
| EN 12255-4:2002 | Identical |
| UNI EN 12255-4 : 2002 | Identical |
| UNE-EN 12255-4:2002 | Identical |
| DIN EN 12255-4:2002-04 | Identical |
| I.S. EN 12255-4:2002 | Identical |
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