How do I get rid of duckweed on an aeration basin?
Active
How do I get rid of duckweed on an aeration basin?
How do I remove duckweed from an aeration basin?
Is the duckweed in the aeration basin or on the clarifier?
If it's the clarifier and you can safely access it, then you can gather up the duckweed using a net, a skimmer, or another floating device; for example a PVC pipe and then pump it out with a vacuum truck.
votes
0
0
Hi,
To add to Tonino's answer, one interesting option for a basin is to drive the weeds towards a central point using a floating dam or weir (like the kind found in ports/harbors to prevent pollution from seeping in). That way the duckweed is collected gradually, and the bonus is that this type of system allows you to accumulate it to a pretty significant depth.
votes
0
0
And after that, you could invert an impeller pump (volute toward the surface) and send the duckweed wherever you want.
Low speed for a few minutes every 1/4 of an hour.
Otherwise, in a lagoon, certain fish like grass carp and koi feast happily on duckweed (haven't tried it on a clarifier though).
votes
0
0
Hi,
Removing duckweed implies that it actually poses a problem. If it doesn’t, or as they say, if it ain't broke, why fix it?
One other idea, based on some research I did is to investigate upstream to see what might be feeding your aeration basin. I know of one plant whose rainwater reservoir was the culprit. The treatment was done at the source at no cost to the plant.
votes
0
0
How to calculate proper compressor size
1 year
ago - 1 answers
What is the difference between ozone and ultraviolet disinfection?
1 month
ago - 7 answers
Getting hired on when just starting
1 month
ago - 2 answers
water filtration systems
3 weeks
ago - 0 answers
Where do I find open wastewater treatment parameters for data analysis?
1 month
ago - 1 answers
Education advice
1 month
ago - 1 answers
Chief Operating Officer / Wastewater Operations - Great Lakes Water Authority
Detroit, MI, USA
04/21/2019
Technical Manager Myanmar - 1001fontaines
Magway Region
04/21/2019
Operator - Pinewood
Wisconsin
04/21/2019
Management Professional - Asset Management and Capital Improvement
Detroit, Michigan, United States of America
04/21/2019
Engineer(s) Water Engineering
Detroit, Michigan, United States of America
04/21/2019
Engineer- Mechanical
Detroit, Michigan, United States of America
04/21/2019
Maintenance Technicians (Millwright or Plumber or Carpenter )
Detroit, Michigan, United States of America
04/21/2019
General Manager - Calleguas Minicipal Water District - Thousand Oaks, CA
04/19/2019
WATER MAINTENANCE WORKER I/II - City of Vallejo - Vallejo, CA
04/19/2019
Manager, Water System - University of Rhode Island - Kingston, RI
04/19/2019
Is UV light or ozonation as effective as chlorination?
Answered by
CMark(420pts)
Targeting the minimum flow rate for drinking-water distribution
Answered by
Cams(360pts)
Do you have any feedback on using diaphragm pumps for lime slurry dosing?
Answered by
dht34(360pts)
Usage of drones in the water industry?
Answered by
Breizh'eau(25920pts)
What's the best material for pipes used in chlorination?
Answered by
polonium210(420pts)
Unsettled sludge
Answered by
Elegant physic(640pts)
If a tank is taken out of service, what the last thing you should do?
Answered by
Jen98020(510pts)
Odor at water treatment plant?
Answered by
SamY(360pts)
Size of disolved COD
Answered by
Elegant physic(640pts)
How many or what percent of treatment plants in the US use lime treatment? How about anaerobic digestion?
Answered by
crolsky(0pts)
0