The Suck-it Bucket (NEW)

My Venturi based Oxygenation drive with saturation chamber is much more efficient than any airstone. More Oxygen gets to the roots because of the penetrating characteristics, and it does not break apart and clog overtime like an airstone. This is part of the my buckets feature.


I cited some different sites.


1. FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS,
Fisheries and Aquaculture Department
link here: Chapter 21 Aeration and Oxygenation in Aquaculture


In order to minimize oxygen consumption devices are needed which ensure the most perfect absorption of oxygen. The operating principle of these is the same as that of aeration devices, but in order to increase the contact time between the gas and the water some technical modifications are needed.

One is bubbling oxygenation where the oxygen gas comes in contact with the water by breaking into bubbles. The rate of oxygen dilution depends mainly on the depth of the water layer, the length of travel of bubbles in the water body and the rate of oxygen feeding. Higher efficiency can be achieved by decreasing the bubble size, thus the contact time and the contact surface increases. But the decrease of bubble size needs a significant quantity of extra energy, and coagulation of bubbles also can happen. The efficiency of oxygen bubbling can be increased by counterflow of oxygen and water (Figure 13/a). Undissolved oxygen can be collected and circulated back to the oxygen supply system (Figure 13/b), or a closed system can be constructed in which oxygen and water are continuously mixed (Figure 13/c).


2. Article in a fishing and boating magazine
link here: Guide to Aeration


SIZE AND AMOUNT OF AIR BUBBLES

Take a look at at the air bubbles produced by an aquarium aerator. Watch how quickly the bubbles rise to the surface. They provide little aeration, but are aesthetically pleasing to watch. Bubbles must remain contacting the water, if they are to do the job properly. A good rule of thumb is: The smaller the bubble, the longer it will remain suspended in water to dissolve.


A Lesson in Air Bubbles by Bob Heideman


The smaller the air bubble, the more slowly it will rise, giving it more time to dissolve in the water. Due to the higher density of salt water, air bubbles are usually smaller in salt water than in fresh water.A large 20mm bubble has a volume of 4.19 cm3, and a surface area of 12.6 cm2.You could make 260 small 3mm bubbles from the large bubble. They would have a total surface area of 83.6 cm2. This is 6.6 times the surface of the 20mm bubble. The small bubbles, can theoretically aerate 6.6 times as much water with the same amount of air.


3. Article in Environmental Fluid Mechanics
link here: SpringerLink - Journal Article


Abstract The concentration of dissolved oxygen is an important indicator of water quality because aquatic life lives on the dissolved oxygen in the water. Aeration can increase dissolved oxygen when levels become deficient. Hydraulic structures can significantly improve dissolved oxygen levels by creating turbulent conditions where small air bubbles are carried into the bulk of the flow. Recent researches have focused on developing measurement and predictive techniques for oxygen transfer at hydraulic structures to maintain and enhance water quality. However, reviewing existing studies on aeration performance of hydraulic structures, it seems that there are not too many studies on venturi aeration. The present paper shows applications of venturi principle to water aeration systems. The aeration characteristics of venturi nozzle, venturi conduit and venturi weir are analyzed. The results indicate that venturi aeration might contribute significantly to air entrainment and aeration efficiency. Therefore, venturi device can be used as highly effective aerator in aeration processes.


4. "Water Quality Products" Commercial water filtration, in reference to Ozone
link here: Ozone, Oxygen: Transfer into Water


Conclusions

The venturi was the best method of transfer, but this was a known going into the study. This method is under pressure and the venturi is also an efficient method of transfer. This did however prove some good points on how efficient the ozone generators produced ozone. The CD system produced about four to five times the ozone that the UV system produced. As stated earlier, the CD system had readings of .49 ppm compared to .1 ppm of the UV system.


5. United States Patent
link here: Bubble generation for aeration and other purposes


This invention relates to the generation of fine bubbles.

BACKGROUND

Bubbles of gas in liquid are frequently required in many different applications and usually, but not exclusively, for the purpose of dissolving the gas in the liquid. Like any industrial process, it is generally desired that this be done in the most efficient manner possible which, in the case of dissolving the gas in the liquid, does not involve the bubble reaching the surface of the liquid and releasing the gas there without it having been dissolved. Ideally, the bubbles should not reach the surface before all the gas in them has dissolved. It is widely recognized that one way to achieve efficiency is to reduce the size of the bubbles. The surface area to volume ratio of a smaller bubble is higher, and dissolution happens much more rapidly. Moreover, the surface tension of a small bubble means that the gas pressure inside the bubble is relatively much higher than in a large bubble, so that the gas dissolves more rapidly. Also small bubbles rise more slowly than large bubbles, and this provides more time for gas transport from the bubble to the surrounding liquid. Furthermore, they coalesce less quickly so that larger bubbles, that rise to the surface faster, are less quickly formed.





I still use a few airstones in my reservoir but its overkill; I reoxygenate and direct the spent water so it spins my reservoir, not to mention my "Suckit Bucket" provides a supercharged siphon-surge every 3 minutes when timers are on that mixes it like a cauldron.

:rastasmoke:

Oh and for those that don't know what the Venturi Effect is it is when a medium(has to have fluid like properties, AKA air, water, ect.) and when this medium is pressed through a smaller opening than it has been traveling through, it compresses this medium, then when it reaches the other side, it expands increasing its speed.

That should help some people, lol.

-C

yea that does help. so what you think man? I mean all I've done is research the best way to get oxygen to the roots and still have a medium so I can grow trees.

Thinking about a DIY

hey do you think would be benefitial to some plants to first store my water in a simple bubbler tank or bucket or something over night or for a couple days before watering in a soil application?

you should aerate it 48 hours in advance if you do not treat your water

other than that aerate it really aggressively about 20 minutes before you feed plants. it will help to oxygenate, kill vocs, mix nutrients, and you have more control over the water temperature.

I'm so confused. You always put too much information. Your a mad scientist. It looks like the system requires you to completly seal off the plant from the roots. All those layers look like they are creating an air tight seal, is that correct? My second question is more about the venturi's. That is something entirely seperate then the system you designed right? Where did you get those things? Could they be used by themselves in other grows to get better results then air stones?

One more thing, since you seem to be an ebb and flow expert, why do you run your timer every 3 minutes? I just built an E&B setup and was curious about watering times. I was setting the timer to 12 minutes. It only takes 20 seconds to fill my tub and maybe 10 seconds to empty it. I use 3" netpots filled with hydroton and a neoprene collar on top. How often should I set my timer?

I think it is an awesome idea, but I feel that a nice big DWC with a large amount of hydroton will do the same, seeing as the res is filled with oxygen rich solution.

-C

I have been reading more on the venturi injectors. Looks like they use them in hot tubes and pools but the price is kind of steep. I'm seeing 100 to 200 dollars just for the valve and to top it off it looks like nothing more then a funnel shaped T. At any rate I would could easily incorporate something like this in my grow but I wont if I cant get that venturi injector for under 20 bucks or build something similar.

I was gone for awhile did not see these posts. To answer your question Venturis are one of the best if not the best aeration possible depending on variables.

Venturis are expensive but you can make one from simple around the house fittings. If you get the shape right it will draw air in through a vacuum and mix it with the water in a microfine bubble mist. The solution gets aerated instantly and roots can take in nutrients more quickly and in larger amounts.

The venturi is seperate from the bucket, however it is part of the suckit bucket system or setup; very good question too. The airtight seal allows for roots to hang in air aeroponically and still be in 100 % humidity so as not to die. The flood and drain times are increased to bring in more air to the dome.

Clarification on flood and drain. My system turns on 5 times for 15 minutes a night however sometimes more do to dome efficiency increases. My system uses a proprietary fitting called an autosiphon which floods the bucket every 3 minutes while pumps are on; it is an auto-flood self pulsing type effect. To answer the question for your particular setup you should flood 4-5 times during lights-on. Its not dangerous to flood more, just that many say it does not make a difference because the plant feeds mostly during lights on.

Please let me know how it goes I would love to see how it works. I have had a hard time actually writing up a DIY on some of these because I am selfish and lazy but I am going to try do something after I release my next movie.

Quote:

---

Originally Posted by AquaponicHerb

yea that does help. so what you think man? I mean all I've done is research the best way to get oxygen to the roots and still have a medium so I can grow trees.

Thinking about a DIY

---

TREE's???? Come on we ARE talking about INSIDE...Trees thats a good one!!!!Show us your "tree's"......Maybe "shrubs" NOT trees.Tree's have stalks the size of 2 litre bottles....I'm sure inside tree's are different.