DIN EN 12255-13:2003-04
Current
The latest, up-to-date edition.
WASTEWATER TREATMENT PLANTS - PART 13: CHEMICAL TREATMENT - TREATMENT OF WASTEWATER BY PRECIPITATION/FLOCCULATION
Hardcopy , PDF
English, German
01-01-2003
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General
4.2 Chemical background and process options
4.2.1 Chemical process
4.2.2 Precipitation processes
4.2.3 Selection of precipitation chemicals
4.3 Storage of chemicals
4.3.1 General
4.3.2 Aluminum salts
4.3.3 Iron salts
4.3.4 Calcium salts
4.4 Dosing equipment
4.4.1 General
4.4.2 Aluminium salts
4.4.3 Iron salts
4.4.4 Calcium salts
4.5 Silos and tanks
4.6 Mixing systems
4.7 Flocculators
4.8 Sedimentation tanks
4.8.1 General
4.8.2 Design considerations
4.8.3 Chemical sludge wasting
4.9 Flotation
4.10 Physical filtration
4.11 Sludge
4.11.1 Sludge production
4.11.2 Sludge characteristics
Annex A (normative) Precipitation chemicals
A.1 Aluminium salts
A.2 Iron salts
A.2.1 Ferrous salts
A.2.2 Ferrous sulphate, monohydrate
A.2.3 Ferrous sulphate, heptahydrate
A.2.4 Ferric salts
A.3 Calcium salts
A.3.1 General
A.3.2 Calcium oxide
A.3.3 Calcium hydroxide
Bibliography
Provides requirements for chemical treatment of wastewater by precipitation/flocculation for removal of phosphorus and suspended solids.
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 12255-13:2002 | Identical |
| NS EN 12255-13 : 1ED 2003 | Identical |
| I.S. EN 12255-13:2002 | Identical |
| NBN EN 12255-13 : 2003 | Identical |
| EN 12255-13:2002 | Identical |
| SN EN 12255-13 : 2002 | Identical |
| NF EN 12255-13 : 2003 | Identical |
| NEN EN 12255-13 : 2003 | Identical |
| UNI EN 12255-13 : 2003 | Identical |
| UNE-EN 12255-13:2003 | Identical |
| ONORM EN 12255-13 : 2003 | Identical |
| EN 12255-10:2000 | Wastewater treatment plants - Part 10: Safety principles |
| EN 12255-6:2002 | Wastewater treatment plants - Part 6: Activated sludge process |
| EN 12255-8:2001 | Wastewater treatment plants - Part 8: Sludge treatment and storage |
| EN 12518:2014 | Chemicals used for treatment of water intended for human consumption - High-calcium lime |
| EN 752-6 : 1998 | DRAIN AND SEWER SYSTEMS OUTSIDE BUILDINGS - PUMPING INSTALLATIONS |
| EN 12255-11:2001 | Wastewater treatment plants - Part 11: General data required |
| EN 10088-2:2014 | Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes |
| EN 12255-1:2002 | Wastewater treatment plants - Part 1: General construction principles |
| EN 1085:2007 | Wastewater treatment - Vocabulary |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.