DVZ - SERVICES GmbH DVZ - SKA - „BIOMASTER“ - MS Engineering
DVZ - SERVICES GmbH DVZ - SKA - „BIOMASTER“ - MS Engineering
DVZ - SERVICES GmbH DVZ - SKA - „BIOMASTER“ - MS Engineering
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7.0 M A I N T E N A N C E<br />
7.1 SLUDGE PUMP OUT<br />
If the accumulated sludge at the bottom of the Treatment Tank is not removed, it will spill<br />
over into the Contact tank. In general terms, if the water in the sight glass turns from clear<br />
to grey or brown, a pumpout is required to keep the effluent quality above that required by<br />
IMCO standards.<br />
If it can be anticipated, that the ship will go to restricted waters, a sludge pump out shall be<br />
performed a few days before, in open (unrestricted discharge) waters, to ensure full<br />
operational time available without need of de-sludging. The procedure outlined below is<br />
recommended if the system is to consistently produce a clear effluent. The frequence of<br />
pumpout is determined by operating history and the owner's requirements. The time period<br />
specified below is average and based on the system operating at 100 % of rated capacity.<br />
7.2 PUMPOUT PROCEDURE<br />
1. Bypass sewage system or close sewage inlet valve.<br />
2. Turn Discharge Pump off.<br />
3. Close Disinfecting tank discharge valve V3.<br />
5. Open the Pre-Treatment Tank valve V1 or Treatment Tank valve V2<br />
6. Start discharge pump(s) manually (if provided) and drain or pump contents overboard,<br />
if outside of regulated waters, or into a suitable receiver for disposal.<br />
7. Turn discharge pump(s) off when tanks are empty. DO NOT RUN PUMP(S) DRY.<br />
8. Close the Pre-Treatment Tank valve V1 or Treatment Tank valve V2<br />
9. Refill the Treatment Tank with water immediately after pumpout to maintain the<br />
bacteria and start up following procedure under „START UP“.<br />
DO NOT ALLOW SYSTEM TO REFILL WITH SEWAGE WITHOUT FIRST FILLING<br />
WITH WATER.<br />
For highest quality, drain Pre-Treatment Tank and Treatment Tank at 3 month intervals<br />
maximum.<br />
Issue: 10.06.2009 Instruction Manual <strong>DVZ</strong>-<strong>SKA</strong>-“BIOMASTER“ Page 12 of 37<br />
EOI<strong>SKA</strong>-SD2n