MP Aquinity 2 E, Руководство по обслуживанию

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System Features
membra Pure
GmbH
Wolfgang-Küntscher-Str.14
16761 Hennigsdorf
Germany
Tel.: +49 (0) 3302/201-20 0
Fax.: +49 (0) 03302/201-20 21
E-Mail: info@membrapure.de
Internet: www.membrapure.de
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When the system starts in normal operation mode, the inlet valve opens and the reverse
osmosis pump starts. It will be closed and the pump will be stopped, when the permeate
tank is completely full.
The pretreatment module ProPak-R10 is a combination of filtration and adsorption via
highly pure activated carbon. Chemicals like chlorides, insecticides, pesticides, and
herbicides and particles larger than 5 micrometer are detained.
The RO pump increases the pressure for the reverse osmosis process. The reverse osmosis
module remove about 98% of the salt content from the water. Moreover nearly all bacteria,
viruses, heavy metal complexes as well as organic molecules with a molecular weight
higher than 300 daltons are rejected. The purified water is called permeate, the waste reject
water is called concentrate. The concentrate water is rejected to drain via flow limiter.
The conditioning module is filled with ion exchanger resin. This module removes hardness
ions from the water to protect the EDI cell.
The permeate conductivity is monitored with a sensor and displayed on the system
monitor. If the conductivity exceeds a preset limit, a warning message will be displayed and
the permeate will be drained.
3.4.1 EDI-cell in Aquinity² E
The EDI cell removes salt contents from the water by the principle of electro-deionization.
Ions pass a membrane into a concentrate chamber and are rinsed out by a flushing stream
(see Figure 3: schematic diagram of the EDI cell). The purified water is called electro-
deionized water. The EDI-electro-deionized permeate containing accumulated ions led to
drain is called sole.
The conductivity of this EDI-deionized permeate is monitored with a sensor. The measured
value is displayed in the unit µS/cm. If the conductivity exceeds a preset limit, a warning
message will be displayed and the solenoid valve will be closed. The solenoid valve will be
opened and the EDI-deionized permeate flows to drain.
The system must be connected to a tank with level control to regulate the production and
tank filling. When the tank is completely full, the production will be stopped. When the level
falls below 75%, the production will be started again and the tank will be filled. If the level
falls below the minimum filling of 15%, the circulation pump will be stopped to prevent its
running dry.