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Ozone, Green Houses
and Hydroponics
Application of Ozone to Waste
Water Recovery and Disinfection
We have full-scale wastewater
recovery systems for greenhouses. In such applications, our
ozonation
systems are used for the complete elimination of bacteria, viruses,
fungi, spores and parasites, as well as for the removal of organic
waste. The ozonated water contains increased levels of oxygen that is
desirable for the prevention of anaerobic pathogen growth on plant
roots.
ECO-TEC will utilize your
existing equipment (such as aeration tanks, pumps, filters and
buildings), to be fitted for the new purpose, or design a brand new
system. The water treatment systems are engineered for fully
automatic and worry-free operation.
The wastewater recovery
system can incorporates two storage tanks,
The ozone controller will treat one tank that is being supplied
with the water returning from the greenhouse. The second tank serves
as the recycled water supply. Typically, 50% of the plant food is
recovered. When the treatment of the first tank is completed, water
is left to sit for a few hours until all residual ozone is reduced to
oxygen. Then the tanks are switched automatically. The second
tank now collects and treats water from the greenhouse while the first
tank supplies water to the plants. All of the wastewater is recovered;
there is no discharge of any kind. The water savings range between
20% to 90% depending on the greenhouse operation and the season.
Complete systems for makeup
water treatments are also available, engineered to fit any size of
operation. The slightest amounts of iron,
manganese, bacteria, organics or other oxidizable materials will plug
the capillaries in the hydroponic water distribution.
Chlorination is not an
option because it forms very toxic chloro-organic compounds known as
THMs. De-chlorination is not completely effective for removing the THMs,
and subsequent discharge into the soil would ultimately lead to
contamination of the ground water. In recirculation systems, the THMs
would accumulate and poison the plants.
Our systems for makeup water
are totally non-toxic and the only by-product created is oxygen.
Based on your water analysis,
ECO-TEC will propose the proper ozonation system size including the
filters, contact tanks and biofiltration, if necessary, applying only
the most economical and reliable solution to the water problem.
SUMMARY OF OZONATION SYSTEM ADVANTAGES -:
1. All water is recycled;
sewer/dumping charges are virtually eliminated. Only in the case of
elevated salt content due to extensive evaporation, a blow down may be
required, usually only after many months of operation.
2. Up to 50% of otherwise
lost nutrition is recovered and returned back to the feed operation
system.
3. All fungi, viruses,
bacteria and parasites are eliminated.
4. The makeup water demand is
greatly reduced.
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