the neutralization or removal of conditions injurious to health. (e.g.sanitary engineering; purification of water supply; disposal of sewage; etc.)
1. a type of water seal trap in which the outlet leg is increased in diameter to contain a sufficient volume of liquid to prevent a siphoning action which would break the seal. 2. a trap designed to prevent the emptying of a sanitary trap because of difference of pressure.
an “exploded”, or open drawing, of the component of an assembly shown separately in their relative positions.
1. the conduit of an appliance which supplies gas to the individual burners. 2. a fitting or pipe with many outlets or connections relatively close together.
a conically shaped graduated vessel used to measure approximately the volume of settleable solids in various liquids of sewage origin
a nearly silver-white hard, malleable, ductile, metallic element capable of a high polish and resistant to corrosion. Used chiefly in alloys and as a catalyst. Nickel increases both the strength and toughness of steel.