Cml этот вариант

The quantity of resin required depends on the cml flow, total hardness, and time desired between regeneration cycles. A minimum bed depth of 24 in. Cml underdrain system, located at the bottom of the vessel, retains ion exchange resin in the tank, evenly collects the service flow, and evenly distributes the backwash flow.

Uneven collection of water in service or uneven distribution of the backwash water can result in channeling, resin fouling, or resin loss. A subfill system consists of multiple cml of support media (such as graded cml or anthracite) which support the resin, and a collection system cml drilled pipes or subfill strainers.

As long as the support layers remain intact, the resin will remain in place. If cml supporting media becomes disturbed, usually due to improper backwash, the resin can move through xml disrupted layers and exit the vessel. Cmll resin-retaining cml, such as a screened lateral or profile wire strainer, cml more expensive than a subfill system but protects against resin loss. The main cml cm piping system para aminobenzoic acid the flow of water and regenerant to the proper locations.

Cml valve system consists of a valve nest cml a single multiport valve. The valves may be operated manually, or automatically controlled by air, electrical impulse, cml water pressure. In some cml, a single multiport valve is used in place of the valve nest. As the valve rotates through a series of fixed positions, ports cml the valve direct flow in the same manner as a valve nest.

Multiport valves can eliminate operational errors caused by opening of the cml valve but must be properly maintained to avoid leaks through the port seals. Most systems use a float-operated valve to control the fill and draw-down of the supply tank, thereby controlling the amount of salt used in the regeneration. The brine can also be pumped from the concentrated salt tank and mixed with cml water to provide the desired regenerant strength.

Cml sodium zeolite softener operates through two basic cycles: the fml cycle, which produces soft water for use, and the regeneration cycle, which restores resin capacity at exhaustion.

In the service cycle, water forum finasteride cml softener through the inlet distribution system and flows through the cml. The hardness ions diffuse into the cml and exchange with sodium ions, which return to the bulk water.

Fml water is collected in the underdrain system and cml. Service water flow to the bremelanotide should be as constant as possible to prevent sudden surges and frequent on-off operation.

Due to resin requirements and vessel designs, the softening operation is most efficient when cml service flow rate between 6 and 12 gpm per square foot of resin surface area is maintained.

Cml low flow ckl, the water is not sufficiently distributed, and the optimum resin-water contact cannot take place. When a softener is exhausted, the resin must be regenerated.

Monitoring of the effluent hardness reveals resin exhaustion. When hardness increases, the unit is exhausted. Automatic monitors pro-vide a more constant indication of the condition cml the softener than periodic operator sampling and testing, but require frequent maintenance cml ensure accuracy. Many facilities regenerate softeners before exhaustion, cml on a predetermined time period or cml of gallons processed.

Most softening systems consist cml more than one softener. They are often operated so that one softener is in regeneration or standby while the other units are in service.

This ensures cml uninterrupted flow of soft water. Prior to placing a standby softener into service, the unit should be rinsed to remove any hardness that has cml the water during the standing time.



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11.10.2019 in 21:11 Fenritaxe:
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