TABLE OF CONTENTS A spillway that takes the overflow from the dam in a channel parallel to the spillway crest.
The removal of phosphates from a wastewater by treating a portion of the return activated sludge as in the PhoStrip process.
A common combined sewer overflow with a weir parallel to the sewer or open channel. Double sided weir overflow may be used ( see Figure S.5). As the flow increases, the depth of flow increases until the excess flow (e.g. the wastewater flow that is in excess of the treatment works capacity) flows over the weir for discharge elsewhere. When located in a sewer and the weir crest is below the horizontal diameter of the sewer, it is known as a low side weir overflow. When the weir crest is above the horizontal diameter, it is known as a high side weir overflow. The structure may be covered with manhole access or, in a wastewater treatment works, it is open.
Two names for the unit of electrical conductance.
See mesh , screen.
The SI unit for radiation dose equivalent, which is the radiation dose multiplied by appropriate factors to take account that some forms of radiation have a greater effect on cells, tissues etc. 1 Sv 1 Gray appropriate factors.
The microbial...
