Dear all
i have experiment to use olive oil mill waste water as fertilizer.. so need to characterize water before usage.. i want to know how to treate olive oil mill waste water before characterization? or used as it is without any processing e.g filtration. .. as it is in semi solid form ( due to water n fruit pulp contents). please guide
Here, you can find the answer.
https://hal.archives-ouvertes.fr/hal-00886326/document
Good luck!
The application of olive mill wastewater OMW; quantity, frequency, timing, …is different from a situation to another.
For example:
1- Type of plant. Dealing with trees is more flexible compared to small plants, so higher amounts of OMW can be applied with no problems, which also depends on the kind, size and age of the tree.
2- Growth stage of the plant. Seeds and transplants are more sensitive.
3- Timing of the application. If there is a long interval between treatment and planting OMW can be used safely. I think that just a few days in the field before planting can make a big change.
4- The source of the OMW is another question, as the oil extraction method affects the composition of the final product.
5- The age or pretreatment of OMW affects its specifications.
6- Field treatments are very much different from pot treatments.
7- ……. etc.
I can advise you, if possible, to carry out small initial trials before the main experiment. Otherwise you should expand the range of application rates and timings.
Usually, OMW is produced in large amounts in a relatively short period, which creates a big pressure on olive mills and the environment. I would encourage more work on direct use of OMW in agriculture. It is just olive juice diluted in water and what we need is just to know how to use this precious material. The amount produced is not enough to fertilize even a small part of the arable lands, so we can use minimum safe doses.
Best wishes