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VIII. Maintenance
1. Chemical cleaning
The chemical cleaning should be carried out to remove foulants accumulated in the
membrane pores or sticking to the membrane surface.
- Carry out the chemical cleaning before the
trans-membrane pressure rises up to 70 kPa or at
least every 6 months, otherwise the element filtration
performance could be reduced significantly.
- Follow the instruction described in this manual when
you carry out the chemical cleaning. If you use the
unacceptable chemicals or perform the cleaning
altered from the recommended procedure, the
membranes could be seriously damaged.
- Pay full attention when handling chemicals and be
sure to wear the safety gear such as glasses and
gloves. The chemicals used for the chemical
cleaning are harmful to people. If chemicals directly
contact your skin, your eyes or other body parts, take
the appropriate treatment as stated in its MSDS.
- Do not mix sodium hypochlorite with acid. Such
mixture generates toxic chlorine gas.
- Stop operations when any instrumental anomalies
occur or any sign of anomalies are observed.
!
CAUTION
!
CAUTION
!
DANGER
!
DANGER
Summary of Contents for HSU-1515
Page 20: ...18 2 Configuration Rack Model R16 ...
Page 21: ...19 Rack Model R08 ...
