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Treatment for irrigation water
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Posted by Mazina KM on 08 Oct 2013 at 00:39
I am an agriculturist and growing mainly cotton in my family farm. I use drip irrigation system for the irrigating the crop. We have a small farm pond, covered with polythene sheet to reduce the percolation of water. My problem is the constant growth of algae in water which creates problem in irrigation system. I am interested in exploring some new and cheap treatment methods for reducing this algae from the irrigation water so that drip doesn't have any problem. ( We have used barley straw to control the algae but it still there is formation of Algae in the pond. )
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Most Voted Answer
I am not that expert or irrigation water, but first you reduce the amount of suspended solids in the water to avoid clogging of your drip irrigation systems. Then you to reduce dissolved solid in hard waters by decantation to avoid clogging your metal or plastic conveyor pipes. You need to well know the water quality of waters used in irrigation.
Said
c'est normal , pourquoi?
nothing replaces a natural Biological function of it and that it is your straw or another thing of the stones of the sand of fabric a filter has authority to thus retain to clog and thus to destroy any biological state
My suggestions are similar to many others. in the first instance consider using black sheeting to cover your pond to reduce the amount of sunlight on the water.
Secondly, install a pumping system that will recirculate the water. this need not be expensive, a small high volume, low pressure pump the could run for a few hours per day would work and with careful placement of the outflow there should not be too much disturbance to create sediment that would cause blockages to your irrigation tape.
1. a small paddle aerator, this will oxygenate the water and also disrupt the eplimnion. The algae require this warm upper layer to photosynthesize, and then drop to the bottom of the pond overnight to assimilate nutrients. Disrupting the layers disrupts this growth cycle.
2. ultrasound is also very effective. LG do one that runs on solar power so running costs are virtually nil.
http://www.lgsonic.com/
Hope this helps
To avoid the growth there are enzymes available in the market for which the algae is nutrition. Further you need airation, have a floating fountain in you pond. this will help you avoid water becoming stagnant and there are much less chances of algal growth than.
Further more to both of the above, you can have a floating garden in your pond which behaves as a ecosystem and the algae will be its nutrient. This is a very effective technique but you need to be very specific in selecting the floating garden plants.
But to go for any of the above solution, your pond data as in quantity, quality of water, region, etc are very imp factors.
First the size parameters comprising the depth and second the chemical parameters, mainly pH, dissolved oxygen and redox.
If it were possible to know the kind of algea you have that would help.
Algae develop when they find nutriments to do so and when the chemical parameters build for them a nice environment.
It is often difficult to eradicate them but it can be done.