Duckweed Removal

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Removal of duckweed from the local drafting water reservoir. The water reservoir is used as an emergency water storage in case of fire. Thus, the water needs to be free of impurifications, so that the high-pressure fire-fighting pumps are not harmed in case that the reservoir would be needed in emergency cases. In the summer, a lot of additional duckweed grows in standing water. An exchange of oxygen is hindered by this, displacing animals and plants. This is prevented by suctioning away the duckweed. The reservoir has a surface area of approx. 500 m².

Contractor: PLA Pumpen und Anlagenbau GmbH
Tsurumi support: Solution development, product selection and installation together with partner.

The problem

Duckweed accumulated on a fire protection pond in summertime, rendering it useless. Conventional removal with excavators and other equipment was cumbersome and costly.

The solution

A free-floating 8-FSP scum skimmer was used. The entire pond surface of 500 m² was cleaned. In three hours, 7 cubic meters of duckweed were suctioned into prepared containers.

Specifications FSP

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.

In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.