Commercial Rain Water Harvesting Systems

Treatment of water from commercial rainwater harvesting systems generally requires disinfection and filtration for many
applications of the captured water.  The catchment surfaces where the rainwater is collected can be contaminated by
birds or materials used on the catchment surface, for example roofing materials.  
Different roofing materials create
different levels of contamination in water that should be treated by the rainwater harvesting system.

Spartan Environmental Technologies builds integrated systems for rainwater treatment including ozone, UV and
ozone/UV systems with and without filtration.  Spartan can offer a single source of supply for the treatment system utilizing
the technologies below.

UV

UV is a good choice for simple disinfection applications where protection of the storage tank from the formation of biofilms
is not an issue.  The UV system is usually positioned in the from the storage tank going to the application where the
rainwater will be used, e.g. toilet flushing or landscape irrigation.  The UV will inactivated most micro organisms present in
the water.  It will not remove any micro organisms int eh tank, biofilms on the tank surfaces or remove any dissolved
organic compounds in water.  Organic compounds in the water or micro organisms living int eh tank can result in color or
odor problems with the water.  In some applications this might not be a problem, but may be in an application such as
toilet flushing.


















Ozone

Ozone systems can be positioned to treat the rainwater in the tank by recycling the water through an ozone injection
system or by continuously bubbling the ozone in to the storage tank.  Ozone is a broad spectrum biocide that treats all of
the water int eh tank as well as preventing the formation of biofilms on the tank surfaces.  In addition, ozone can remove
color and odors from water that allow the water to be used in a wider array of applications.
















Ozone/UV

Ozone and UV can be used together.  Ozone would treat the bulk of the water in the tanks while the UV can be used to
treat the water sent to the application, e.g. landscape irrigation.  This approach offers a couple of benefits: first, it provide
redundancy should either system fail insuring that pathogens never reach the end use of the water.  Second, for
applications where residual ozone might not be desirable int eh water, UV will remove most if not all of the ozone residual
prior to the application.
Ozone Water Treatment - Ozone Generators
Spartan Environmental Technologies
Air and Water Treatment
Search


Phone: 800-492-1252
Fax: 440-368-3569

E-mail:
info@
spartanwatertreatment
.com

Ozone Rainwater Harvesting Treatment Systems

UV Rain Water Treatment System Schematic
Ozone UV Rain Water Treatment System Schematic
Ozone Rain Water Treatment System Schematic