Owner’s manual
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20220816
Phosphorus removal unit (DpEC)
Item # 339921
The primary reactor model PRT-660 is designed to treat up to 1,440 L/d (up to 4 bedrooms). the primary reactor model PRT-960,
composed of 2 tanks installed in series,
is designed to treat up to 2,160 L/d (up to 6 bedrooms). The EC unit, model DpEC-090 can
also treat up to 2,160 L/d (up to 6 bedrooms). As the primary reactor the electroagulation unit is available in concrete or polyethylene.
Designation of different models is show in the table below.
1.3.
Watertight sand filter
The watertight sand filter is a wastewater treatment system whose design is based on the replacement of the natural soil layer by a
filtering media. The sand filter unit combined with a phosphorus removal unit (DpEC) provides an efficient solution for phosphorus
removal and for disinfection.
At the phosphorus removal unit (DpEC) effluent, the wastewater is directed to the watertight sand filter by a pumping station to feed the
distribution device. The water percolates vertically through the sand bed and then collected by a network of perforated pipes located
on the gravel bed at the base of the watertight sand filter.
The sand filter allows continuous or intermittent use without requiring any special precautions and without any impact on the quality of
the treatment. The owner has no particular action to make to bring the system into operation; the owner only needs to ensure
compliance with the operating instructions described below.
The dimensions of the
watertight sand filter
are determined by the number of bedrooms in the residence or by the total daily flow of
wastewater coming from the residence and any domestic wastewater coming from any other type of building.
1.3.1. Dimensions of the watertight sand filter
1.4.
Triggering system start-up
The start-up of the phosphorus removal unit (DpEC) (i.e. the electrification of the Electrodes and Agitating Pump) can be performed
two ways. However, two simultaneous conditions must be taken into consideration. Should one of these two conditions not be met,
the system will not start. The device will also detect the presence of incoming wastewater.
Number of bedrooms
Maximum daily flow (L/d)
Polyethylene
Electrocagulation unit
Concrete
Electrocagulation unit
1
540
DpEC-090P
DpEC-090B
2
1 080
DpEC-090P
DpEC-090B
3
1 260
DpEC-090P
DpEC-090B
4
1 440
DpEC-090P
DpEC-090B
5
1 800
DpEC-090P
DpEC-090B
6*
2 160
DpEC-090P
DpEC-090B
Total daily flow
Number of bedrooms
Length of the sand filter
Width of the sand filter
1,080 L
2 and less
6.4 m
3 m
1,260 L
3
1,440 L
4
1,800 L
5
4.5 m
2,160 L
6
Summary of Contents for REWATEC Phosphorus removal unit
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