Stormwater and Secondary Effluent Filtration for Irrigation Reuse, Israel
Country
Israel
Application
Protecting drip irrigation
Water source
Reservoir
Filtration solution
Spin Klin™ Nova Plus external source
Background
Water from several sources, including stormwater and secondary effluent, is collected at this reservoir for irrigating the surrounding crops.
This water has large quantities nutrients, suspended solids and other debris, and can clog the water distribution equipment downstream, including drip lines.
Filtration is required, not only to optimize irrigation efficiency but also to promote sustainable agriculture by conserving water resources.
Challenge
The existing filtration system at the reservoir was unable to handle the high biological loads and extremely low working pressure and was not operational.
The customer was looking for a completely automatic filtration system to protect the water distribution equipment, able to utilize all of the reservoir water, including the bottom third, which up until now was not possible due to the extremely high loads.
The water during the summer months was particularly challenging due to rapid reproduction of biological fouling and increased water demand.
The filtration system would need to continue to be efficient even under these extreme conditions, including maximum flow rates and high loads.
Solution
After inspecting the existing system and reviewing the water quality data, Amiad suggested installing the Spin Klin™ Nova Plus external source, which would allow efficient filtration throughout the year.
Also, the system is designed so that the backwash water is accumulated in a tank and pumped back to the reservoir for recycling.
• Flow rate: up to 180 m³/h (793 gpm)
• Filtration degree: 130 micron
• Working pressure: 1.5-2 bar (21.75-29 psi)
• Backwash pressure: 2-2.5 bar (29-36 psi)
Results
The Spin Klin™ Nova Plus external source filtration system has been working successfully for the second year, with no clogging.
Amiad’s solution made it possible for the customer to utilize all of the reservoir water. This also saved the expenses associated with using costly potable-quality water to supplement irrigation during the severe summer conditions.
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