We are running City & Guilds Legionella Control Training Courses thoughout May, June and July. To find out more visit http://www.clearwater.eu.com/about/city-and-guilds or contact us on 08000 937 936 today.

 

News

Talking the Talk: Abbreviations in the Water Treatment Industry

 

Understanding how important language is

Language (NOUN) the method of human communication, either spoken or written, consisting of the use of words in a structured and conventional way’

We often forget how important language is to our understanding of the world as we use it daily, however it defines us as human beings and enables us to convey our complex thoughts and ideas to others. It’s estimated there are approximately 7000 languages in the world, however this figure is hard to gauge as accurate due to the changing nature of language, and its ability to evolve and develop.

 

Why do we abbreviate?

An abbreviation (from Latin brevis, meaning short) is a shortened form of a word or phrase. They have a long history for such short things, as we essentially began to abbreviate words to save time and space on the page since the classic scholars in Greece and Rome began substituting words for single letters. Abbreviations were also used prolifically during the 15th – 17th centuries in England when manuscripts were using more abbreviations to save on the copy time. The only real rule of abbreviations is that they should be consistent.

 

Common language abbreviations

Some common examples of abbreviations we use regularly include:

  • ASAP – As soon as possible
  • DIY – Do it yourself
  • ETA – Expected time of arrival
  • RSVP – "répondez, s'il vous plaît," meaning 'please reply'

 

Changes in recent technology and effects on language

Technology has changed how we do many things, but it has also left an impact on how we use language. Some could argue it has sped up the natural evolutionary path that language has always been on, though the advancement in the electronic devices we now use to communicate has caused our use of symbols and shortened words to grow. The necessity to condense what we say has never been greater, as tweets and texts only allow us a certain amount of space to convey a message. Examples of recent modern abbreviations include:

  • CU – See you
  • 4ward – Forward
  • B4 – Before
  • BTW – By the way

 

Why do we have to keep up to date?

Like any aspect of life, we need to keep up to date with the changing nature of language for our own benefit, so that we can work and function in society. It’s crucial in business to communicate well with potential customers and colleagues to enable a good working relationship, and to do this everyone has to understand the language being used. This has to be appropriate and relevant at all times, to maintain good levels of communication.

Find out more about the abbreviations we use below:

 

Term or Abbreviation

Description / Meaning

A

 

A

Amp

ABS

Acrylonitrile butadiene styrene

AC

Alternating current

ACDC

Australian Rock Band

ADI

Acceptable daily intake

AQL

Acceptable Quality Level

AS

Activated Sludge

AV

Actucated Valve

B

 

BAC

Biological Activated Carbon

bar

derived measurement of pressure; approx 15 psi

BOD

Biochemical Oxygen Demand

BOD5

5 day Biochemical Oxygen Demand

BODu

Ultimate Biochemical Oxygen Demand

BAF

Biological Aerated Filter

BSRIA

Building Services Research & Information Association

BTEX

Benzene, toluene, ethylbenzene, and total xylenes

BX

Base Exchange

C

 

CAPEX

Capital Expenditure investment

CESWI

Civil Engineering Specification for the Water Industry

cfu

Colony Forming Unit (Microbiology)

CHP

Combined Heat and Power

COD

Chemical Oxygen Demand

COSHH

Control of Substances Hazardous to Health

CP

Control Philosophy

CSO

Combined Sewar Overflow

CSS

Combined Sewage System

CVOC

Chlorinated volatile organic compound

ClO2

Chlorine Dioxide

D

 

DAF

Dissolved Air Flotation

DBP

Disinfection byproduct

DC

Direct Current

DGF

Dissolved Gas Flotation

DMF

Dual Media Filter

DN

Nominal Diameter (Metric pipes)

DO

Dissolved Oxygen

DOC

Dissolved Organic Carbon

DS

Dissolved Solids

DTI

Department of Trade and Industry

DWI

The Drinking Water Inspectorate

dwg

Drawing (also .dwg is format of CAD extension)

E

 

el

Elevation

Eng

Engine

Engr

Engineer

ETP

Effluent Treatment Plant

exc

Exclusive / Excludes

ext

External

Ex

Explosive area rating

F

 

FAT

Factory Acceptation Test

FDS

Fluid Distribution System

FDS

Functional Design Specification

Fe

Chemical Symbol for Iron

Ferric

Iron III Chloride; or Ferric Chloride; FeCl3

FeX

Fe Removal (Clearwater System)

FI

Fouling index

F:M ( or F/M)

Food to Microorganisms ratio

FMEA

Failure Mode and Effects Analysis

FWS

Free water Surface

FWSW

Free water Surface Wetland

G

 

GA

General Assembly

GA DWG

General Arrangement drawing

GAC

Granular Activated Carbon

GLV

Guideline Value

GRP

Glass Reinforced Plastic (fibreglass)

H

 

HAZOP

Hazard and Operability Study

HDPE

High density polyethylene

HEX

Heat Exchanger

HMI

Human Machine Interface

I

 

IAF

Induced Air Floation

ID

Inside Diameter

IGF

Induced Gas Floation

inc

Inclusive / Includes

I/O

Input / Output

IWA

International Water Association

IWSA

International Water Supply Association

IWW

Industrial waste water

IX ( also IEX)

Ion Exchange

K

 

kpa

kilo pascalls

kW

Kilo Watt

L

 

LDPE

Low density polyethylene

lpd

Litres per Day

lph

Litres per Hour

LCP

Local Control Panel

LSI

Langlier Saturation Index

lpm

Litres per Minute

M

 

M&E

Mechanical and Electrical

MEP

Mechanical Electrical and Process

MCC

Motor Control Centre

m3/d

metres cubed per day

m3/h

metres cubed per hour

m3/m

metres cubed per minute

MAC

Maximum admissible concentration

MB

Mixed Bed

MBBR

Moving Bed Biological Reactor

MBR

Membrane Bio Reactor

MCRT

Mean Cell Residence Time

MEP

Mechanical, Electrical and Plumbing

MLD

Mega Litres per Day

MLSS

Mixed Liquor Suspended Solids

MLVSS

Mixed Liquor Volatile Suspended Solids

MMF

Multi Media Filteration

MPN

Most Probable Number (bacterial colony counts)

MSDS

Material Safety Date Sheet

mS

milli Siemens as in conductivity

MS

Method Statement

N

 

ND

Not detected

NF

Nanofiltration

NTU

Nephelometric Turbidity Unit

O

 

O3

Ozone

OD

Outside Diameter

O&M

Operation and Maintenance (usually precedes manual)

OFTSS

Oil (and organics) free Total Suspended Solids ( ie inert suspended solids)

OPEX

Operational Expenditure (often stated on a recurring annual basis)

ORP

Oxygen Reduction Potential

P

 

P&ID

Piping & Instrumentation Diagram

PAC

Powdered Activated Carbon

PAC

PolyAluminium Chloride

PAO

Phosphate Accumulating Organism

PCD

Pitch Circle Diameter ( eg bolt hole spacing on a flange)

PCV

Prescribed Concentration or Value

pe

Population Equivalent

PFD

Process Flow Diagram

pH

Hydrogen Potential

PLC

Programmable Logic Controller

PN

Nominal Pressure rating pipes and flanges; usually quoted in bar

POD

Point of discharge

ppb

Parts per billion

ppm

Parts per million

ppt

Parts per trillion

PVC

Polyvinyl Chloride

PVDF

Polyvinylidene fluoride

PSI

Pounds per Square Inch

R

 

RA

Risk Assessment

RAS

Return Activated Sludge

RBC

Rotating Biological Contactor

RBTS

Reed Bed Treatment System

RO

Reverse Osmosis

RTC

Real Time Control

RGF

Rapid Gravity Filter

S

 

SAF

Submerged Aerated filter

SAT

Site Acceptation Test

SBR

Sequencing Batch Reactor

SCADA

Supervisory Control and Data Acquisition (system)

SDRL

Supplier Data Requirements list

SS

Suspended Solids

SS

Stainless Steel

SSF

Slow Sand Filtration

SRT

Sludge Retention Time (see also MCRT - same calc)

STW

Sewage Treatment Works

SVI

Sludge Volume index

T

 

TDS

Total Dissolved Solids

TKN

Total kjeldahl nitrogen

TOC

Total Organic Carbon

TSS

Total suspended solids

U

 

UF

Ultra-Filtration

URS

User Requirement Specification

UV

Ultra Violet (Disinfection Unit)

V

 

V

Volts

VFA

Volatile Fatty Acid

VFD

Variable Frequency Drive (alows pump to work at varying rates)

VOC's

Volatile Organic Compound(s) or Chemicals

VSS

Volatile Suspended Solids

W

 

WAS

Waste Activated Sludge

WRAS

Water Regulations Advisory Scheme

WTP

Water treatment plant

WWTP

Waste water treatment plant

   

µS

micro Siemens as in conductivity

μS/cm

Micro Siemens / centimeter, more commonly displayed as just µS

 

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