Designed for venting approved oild fired and natural gas appliances that produce draft hppd flue gasded that fo not exceed a temperature pf 570°F or 926°F for minuted in an over-fire situation

Can be a vent or connect, made to vent oil

Used only as gas connectors, used only for venting gas or oil

Water is passed through a porous bed of filters medium , utilizes the effluent either from plain sedimentation or directly from sources

Slow Sand Filter

A membrane system similar to reverse osmosis but with a looser membrane that rejects most polyvalent ions while allowing the monovalent ions of sodium and chloride to pass through

Nanofiltration

A membrane system that is even looser and generally is used to seperate oil and water

Ultrafiltration

Designed to remove coarse suspended particulates larger than 10u in sized

Deep Bed Sand Filtration

Flocs settle to the bottom of the water because they are heavier than water

Sedimentation

Used to removed residual chlorine, chloramine, disinfectants, dissolved organics suchs as trihalomethanes, and a major portion of naturally occuring dissolved organic materials form municipal water supplies.

Activated Carbon Filtration

Water above the filter sand that provides hydraulic head for the process

Supernatant

The addition of one or more chemicals disinefectants to kill any remaining parasites, bacteria or viruses

Disinfection

The technique common in developed countries for treating large quantities of drinking water

Rapid Sand Filter

More widely favored in industrial and commercial water conditioning applications

Pressure filters

A relatively sophisticated process usually requiring power operated pumps, regular backwashing or cleaning, and flow of the filter outlet

Rapid Sand filter

Removal of large items form the influent to prevent damage to the facility pums, valves and other equipment

Bar Screening

Microscreen is capable of removing foreign particle size ranging between ____ microns for removing grain, dust, hairfall and etc

25-30 microns

Initial seperation of solid organic matter from waste water.

Primary Clarifier

Air is pumped into the tank/basin to encourage conversion of NH3 to NO3 and provide oxygen for bacteria to continue to propagate and grow

Aeration

A measurement of the amount of oxygen required for the biochemical degradation of organic material

Biochemical Oxygen Demand

Most common aeration process used to treat wastewater

Activated Sludge Process

Uses aeration and floc to separate sludge from water

ASP

Similar to an activated sludge process, but this system uses one tank for all the treatment steps, rather than using different equipment for each step in the process

SBR

This is used to speed up the aeration stage to treat waste water with a lower hydraulic retention time

SBBR

Rather than using aeration alone to faciliate a biological reaction, support materials, such as plastic media, get mixed into the tank.

SBBR

The water passes through a membrane that efficiently removes solids

MBR

Influent enters an aeration tank, also called a reactor, full of thousands little plastics pieces called carriers or media.

MBBR

Used to remove chemicals that give objectionable odors or tastes to water such as hydrogen sulfide or chlorine

Granular activated Carbon

Used as filtering agent in sugar refining and as an adsorbent and disinfectant.

Animal Charcoal

The product created by heating an iron ore at a temperature high enough to burn off its oxygen and carbon content but below iron's melting point.

Sponge Iron

The treated water is aerated if necessary to bring the dissolved oxygen up to permit level

Oxygen Uptake

Chemicals with a positive charge are added to the water; positive charge neutralizes the negative charge of dirt and other dissolver particles in the water

Coagulation

Allow the colloids to cluster to foram a larger, jelly lije massed called floc

Coagulation

Often the first step in the water treatment

Coagulation

Requires a shorter period between washings

Fine Sand

Standard Specification for steel joints bars, low, medium and High Carbon

ASTM A3

The characteristic of a material on how easily it will burn or ignite, causing fire or combustion

Flammability

The quality of being capable of igniting or burning

Combustibility

The first stage when heat, oxygen and fuel source combine

Ignition

Standard hose length of for standpipe NBC

23m

Standard hose length of for standpipe FC

22m

All portion of the building are within ____ of a nozzle attached.

According to FC maximum travel distance from dry standpoint outlet connection

40m

According to FC for dry standpipe system strength of fiitings must be ____?

300 psi

According to NBC dry standpipe system shall stand _____ of water pressure?

20kg/cm2

According to FC for dry standpipe system diameter of pipe must be __ for 23m or less building

According to FC for dry standpipe system diameter of pipe must be __ for 23m or more building

According to NBC Dry standpipe must be able to deliver ____lpm from each if any 3 outlests

900lpm

According to NBC for wet standpipe system must able to deliver ____lpm under ____ pressure

190lpm @ 2kg/cm2

Diameter of Combination standpipe

Water supply of wet standpipe system according to FC

132 lpm

All interior wet standpipes shall be connected to a street main not less than ____ in diameter

100mm

FC- Dry Standpipe must have ___outlet

64mm

Height of fire service connection in street front

46cm-122cm

pipe diameter of 3 way

125mm

NBC dry stanpipe must be ______above grade height of fire service connection in street fun

0.30m-1.2m