Acronym - Abbreviation
|
Meaning - Explanation
|
| AC |
Alternating current |
| ADI |
Acceptable daily intake |
| AOC |
Assimilable Organic Carbon |
| AOS |
Adult onsite exposure |
| AWWA |
American Water Works Association (www.awwa.org) |
| AWWARF |
American Water Works Association
Research Foundation (www.awwarf.com) |
| BAC |
Biological Activated Carbon (water
treatment) |
| BAF |
Biological Aerated Filter (wastewater
treatment) |
| BATNEEC |
Best Available Techniques Not
Entailing Excessive Costs |
| BOD5 |
Biochemical Oxygen Demand (over a 5
day period) |
| BPEO |
Best Practicable Environmental Option |
| BSE |
Bovine Spongiform Encephalopathy |
| BSRIA |
Building Services Research &
Information Association (UK) |
| BTEX |
Benzene, toluene, ethylbenzene, and
total xylenes |
| CAA |
Clean air act (EPA) |
| CAP |
Common Agricultural Policy (European
Union) |
| CAPEX |
Capital Expenditure investment |
| CCTV |
Closed Circuit Television |
| CESWI |
Civil Engineering Specification for
the Water Industry |
| CFC |
Chlorofluorocarbons |
| cfu |
Colony Forming Unit
(Microbiology) |
| CHP |
Combined Heat and Power |
| CJD |
Creutzfeld-Jakob's
Disease |
| COD |
Chemical Oxygen Demand
(water treatment) |
| CORDIS |
Community Research and
Development Information Service ( of the European Community) |
| CSO |
Combined Sewer Overflow |
| CVOC |
Chlorinated volatile
organic compound |
| DAF |
Dissolved Air Flotation
(water and wastewater treatment) |
| DBP |
Disinfection By-Product |
| DMA |
District Meter Area
(leakage control) |
| DO |
Dissolved Oxygen (water
chemistry) |
| DOC |
Dissolved organic carbon |
| DTI |
Department of Trade and
Industry (UK) |
| EBCT |
Empty Bed Contact Time (water
treatment) |
| EEA |
European environmental agency |
| EEC |
European economic Community or
Commision |
| EHS |
Environment and Heritage Service (www.doeni.gov.uk) |
| EMAS |
Eco-Management and Audit Scheme |
| EMS |
Environmental Management System |
| EPA |
Environment Protection Agency (US) |
| ESA |
Environmentally Sensitive Area |
| EQO |
Environmental Quality Objective |
| EQS |
Environmental Quality Standard |
| EU |
European Union |
| EUREAU |
European Union of National
Associations of Water Suppliers and Waste Water Services |
| EWPCA |
European Water Pollution Control
Association (www.atv.de/ewpca/ewpca.htm) |
| EWRI |
European Water Research Institutes
partnership |
| FAO |
Food and Agriculture Organization (
of the United Nations) |
| FI |
Fouling index |
| GAC |
Granular Activated Carbon |
| GC |
Gas chromatography |
| GCMS |
Gas chromatograph + mass spectrometer |
| GLV |
Guideline Value (water quality
standards) |
| GMO |
Genetically Modified Organism |
| HACCP |
Hazard Analysis and Critical Control
Point |
| HDPE |
High density polyethylene |
| HC |
hydrocarbons |
| IPC |
Integrated Pollution Control |
| IWA |
International Water Association |
| IWSA |
International Water Supply
Association |
| IWW |
Industrial waste water |
| IPPC |
Integrated Pollution Prevention and
Control |
| JTU |
Jackson turbidity unit |
| LDPE |
Low density polyethylene |
| MAC |
Maximum admissible concentration |
| MB |
Mixed Bed |
| MCL |
Maximum Contaminant Level (water
quality standards) |
| mgd |
Million gallons per day |
| mld |
Megalitres per day |
| MTBE |
Methyl-tert-butyl ether (water
chemistry) |
| NAPL |
Non Aqueous phase liquid |
| ND |
Not detected |
| NF |
Nanofiltration |
| NOx |
Nitrogen Oxide (Air Quality) |
| NOSWA |
North of Scotland Water Authority |
| NTU |
Nephelometric Turbidity Unit (water
chemistry) |
| OECD |
Organisation for Economic
Co-operation and Development (www.oecd.org) |
| OPEX |
Operating Expenditure on a recurring
annual basis |
| OSEC |
On-Site Electrolytic Chlorination
(water treatment) |
| PAC |
Powdered Activated Carbon (water
treatment) |
| PAH |
Polycyclic Aromatic Hydrocarbons
(water chemistry) |
| PCV |
Prescribed Concentration or Value
(water quality standards) |
| pe |
Population Equivalent (wastewater
treatment) |
| pH |
Hydrogen potential |
| ppb |
Parts per billion |
| ppm |
Parts per million |
| ppt |
Parts per trillion |
| PRV |
Pressure Reducing Valve (water
distribution) |
| PTE |
Potentially Toxic Element |
| PVC |
Polyvinyl Chloride |
| RBC |
Rotating Biological Contactor
(wastewater treatment) |
| RBTS |
Reed Bed Treatment System (wastewater
treatment) |
| RO |
Reverse Osmosis (water treatment) |
| RTC |
Real Time Control |
| SBR |
Sequencing Batch Reactor (wastewater
treatment) |
| SCADA |
Supervisory Control and Data
Acquisition (system) |
| SDWA |
Safe Drinking Water Act (US
legislation) |
| SME |
Small and Medium Sized Enterprises |
| SI |
International system of Units |
| SS |
Suspended Solids (wastewater
treatment) |
| SSSI |
Site of Special Scientific Interest |
| STW |
Sewage Treatment Works |
| TAD |
Thermophilic Aerobic Digestion
(wastewater sludge treatment) |
| tds |
Total dissolved solids (water
chemistry) or tonne of dried solids (sewage sludge) |
| THM |
Trihalomethane (water chemistry) |
| TDS |
Total dissolved solids |
| TKN |
Total Kjeldahl nitrogen |
| TOC |
Total Organic Carbon (water
chemistry) |
| TSS |
Total suspended solids |
| TTHMs |
Total Trihalomethanes |
| TWL |
Top Water level (water reservoirs) |
| TZW |
Technologiezentrum Wasser (Karlsruhr,
Germany) |
| UNEP |
United Nations Environment Programme |
| UNESCO |
United Nations Educational,
Scientific and Cultural Organization |
| UV |
Ultraviolet Radiation |
| VFA |
Volatile Fatty Acid (wastewater
chemistry) |
| VOC's |
Volatile Organic Compound(s) or
Chemicals |
| WC |
Water column |
| WEF |
Water Environment Federation (USA) (www.wef.org) |
| WERF |
Water Environment Research Foundation
(USA) (www.werf.org) |
| WTP |
Water treatment plant |
| WWTP |
Waste water treatment plant |
| WHO |
World Health Organization |