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A water softener employs a vessel, a distributor with a manifold
body associated to said vessel and a valve control device. A control
unit programs operation of the softener. An actuator unit has a
cylinder divided into a first chamber and a second chamber. The
actuator unit is adapted to move a spool to define different flow
ways, for water. The first chamber communicates directly with a
water inlet pipe, and the second chamber communicates with the inlet
pipe through a valve and an outlet.
A method and apparatus are disclosed for mixing sewage sludge with
spent water-softener lime in a ratio of approximately 10:1 on a
wet basis. The mixture is introduced to a rotary pre-dryer kiln
and a rotary combuster kiln to kill pathogens. An ash by-product
and gases are thereby produced. The ash by-product can be disposed
of at much less cost or can be incorporated in a variety of applications
such as an aggregate substitute.
A water softener system including a hard water flow pipe through
which hard water flows, a modular water softener assembly, and a
regeneration tank is provided. The modular water softener assembly
includes an elongated tube having a first end, a second end, a length
extending therebetween, and a predetermined inner volume for storing
an amount of water softening particles. The water softener assembly
also includes a first end cap coupled to the tube at the first end
having a first port in flow communication with the hard water flow
pipe and a second port in flow communication with an outlet pipe
through which soft water flows. The water softener assembly is supported
by the hard water flow pipe and the outlet pipe. The regeneration
tank contains a regenerate for regenerating the water softening
particles and is in flow communication with the water softener assembly.
Regeneration controller and method for controlling regeneration
of a water softener are provided. The controller includes a water
meter configured to output a signal indicative of the volume of
influent water received by the water softener. A water-hardness
indicator, such as a conductivity meter or ion-selective electrode,
is configured to output a signal indicative of a degree of hardness
of the influent water. A processor is coupled to receive the respective
signals from the water meter and the hardness indicator. The processor
is further configured to calculate a value indicative of the total
level of hardness removed by the water softener. A comparator is
coupled to receive a signal indicative of the quantity of resin
capacity of the water softener. The comparator is further configured
to receive the value indicative of total hardness to issue a regeneration
command based on comparing the resin capacity relative to the value
of total hardness.
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