MCU14/0056 Response to SARA - Consulting Report

                   Coalescer pack to improve output quality to less than 5mg/L;

                   Oil Level probe for continuous monitor;

                   Auto Closure Device for bulk spill protection;

                   Gravity driven;

                   One piece unit for easy on-site installation;

                   No power requirement for auto closure device — failsafe protection from light liquid spills
                    (Puraceptor model);

                   Cost effective;

                   Compliments other components in the treatment train;

                   Discharge to stormwater/receiving environment drain or as site requires.

          2.1       Components
          The Puraceptor Class 1 is a gravity-type, passive, full retention flow process that treats all flows through
          two chambers. Low velocity laminar flow provides quiescent conditions in the separator enabling the light
          liquid content of the water to separate and rise to the surface due to the difference in density of the oil and
          water. Contaminated water cannot flow directly across the surface before effective separation has taken
          place. Treatment process involves the `cleaner` water passing from the primary chamber by underflow into
          the secondary chamber and finally through a coalescing filter mounted in the secondary chamber to
          `collect` smaller droplets of hydrocarbons and encourage larger droplets to form enabling better removal by
          gravity to the collecting area in the sealed secondary chamber. The SPEL Puraceptor is sized to treat and
          capture all flows. There is no bypass facility, meaning all pollutants are captured and retained between
          maintenance cycles. Figure 2.1 illustrates a general view of the SPEL Puraceptor and its components.




          Figure 2.1 – SPEL Puraceptor and its major components



          2.1.1     Coalescing Filter
          The coalescer is a high- reticulated and high-contact surface filter with a minimum life span of eight years.
          It is mounted into the secondary chamber, providing a coalescing process for the separation of smaller oil
          droplets. Incorporated in the secondary chamber prevents the coalescer from being blocked in the event of
          major spillages and large amounts of accumulated hydrocarbon or heavy silt content in the surface water.




HEAD OFFICE                  POSTAL                            EMAIL                           ABN                          spel.com.au
100 Silverwater Road         PO BOX 7138                       [email protected]               83 151 832 629
Silverwater NSW 2128         Silverwater NSW 2128