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include those for sizing the air compressors and those for sizing air distributions
systems. Because the specific calculations are equipment specific, only a description of
calculations that may be required are presented in this chapter.
The air compressor system is typically sized on the basis of calculation of the
sum of the air requirements and the highest pressure required. The air is then sent to
the air distribution system via of pressure regulators.
Additional calculations for the distribution systems include those required for
sizing storage receivers, air dryers, and distribution piping. These calculations are
primarily based on the specific air requirements for each individual demand.
Telephone Line Requirements. Telephone lines for remote alarms are
typically not designed specifically for filter presses. The specific requirements are
typically determined for the site conditions, and specific control outputs requiring remote
alarms are specified within the guide specification along with other controls requiring
remote alarms within the treatment facility.
Other Utility Requirements. Other utilities that may be required for filter
presses include natural gas. Natural gas may be used indirectly for general heating,
sludge drying, and sludge incineration. Natural gas needs for a filter press are primarily
determined in conjunction with the requirement of the entire treatment facility. Typically,
quantity and pressure required, and sizing of the specific distribution systems are
ADDITIONAL REQUIREMENTS. In addition to the process, mechanical, and
electric calculations, additional design calculations may be required for a filter press. For
example, architectural requirements such as determining aisle space, equipment
clearances, and storage space; structural requirements for the filter press, supporting
accessories, and chemical storage; operation and maintenance provisions; and health
and safety requirements need to be calculated. However, these calculations are