I.S. EN 12255-4:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
WASTEWATER TREATMENT PLANTS - PART 4: PRIMARY SETTLEMENT
Hardcopy , PDF
02-03-2023
English
01-01-2002
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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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
Defines the performance requirements for the primary settlement of wastewater at wastewater treatment plants for over 50 PT.
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| UNI EN 12255-4 : 2002 | Identical |
| DIN EN 12255-4:2002-04 | Identical |
| UNE-EN 12255-4:2002 | Identical |
| NEN EN 12255-4 : 2002 | Identical |
| BS EN 12255-4:2002 | Identical |
| NF EN 12255-4 : 2002 | Identical |
| SN EN 12255-4 : 2002 | Identical |
| EN 12255-4:2002 | Identical |
| NBN EN 12255-4 : 2002 | Identical |
| NS EN 12255-4 : 1ED 2002 | Identical |
| ONORM EN 12255-4 : 2002 | Identical |
| EN 12566-1:2016 | Small wastewater treatment systems for up to 50 PT - Part 1: Prefabricated septic tanks |
| DIN 19551-1:2002-12 | WASTEWATER TREATMENT PLANTS - RECTANGULAR TANKS - PART 1: SETTLEMENT TANKS WITH SLUDGE SCRAPER, SUCTION TYPE SLUDGE REMOVER AND CHAIN SCRAPER - TYPES, MAIN DIMENSIONS, EQUIPMENTS |
| EN 12255-10:2000 | Wastewater treatment plants - Part 10: Safety principles |
| EN 12255-11:2001 | Wastewater treatment plants - Part 11: General data required |
| DIN 19552:2002-12 | WASTEWATER TREATMENT PLANTS - CIRCULAR TANKS - SETTLEMENT TANKS WITH SLUDGE SCRAPER, SUCTION TYPE SLUDGE REMOVER AND THICKENER, MAIN DIMENSIONS, EQUIPMENT |
| EN 12255-1:2002 | Wastewater treatment plants - Part 1: General construction principles |
| DIN 19569-2:2016-02 (Draft) | WASTEWATER TREATMENT PLANTS - PRINCIPLES FOR THE DESIGN OF STRUCTURES AND TECHNICAL EQUIPMENT - PART 2: SPECIFIC PRINCIPLES FOR THE EQUIPMENT FOR SEPARATING AND THICKENING OF SOLIDS (WITHOUT FACILITIES FOR SEPARATION AND TREATMENT OF SAND) |
| DIN 4261-2:1984-06 | SMALL SEWAGE TREATMENT PLANTS; PLANTS WITH SEWAGE AERATION; APPLICATION, DESIGN, CONSTRUCTION AND TESTING |
| EN 1085:2007 | Wastewater treatment - Vocabulary |
| BS 6297:1983 | Code of practice for design and installation of small sewage treatment works and cesspools |
| DIN 19558:2002-12 | WASTEWATER TREATMENT PLANTS - OUTLET INSTALLATIONS, WEIR AND SCUM BAFFLE, SUBMERGED EFFLUENT PIPES IN TANKS - CONSTRUCTION PRINCIPLES, MAIN DIMENSIONS, LAYOUT |
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