Quote Originally Posted by glarior View Post
i used the full amount that came with the kit. However when i cleaned it only 1/2 of the sulphur remained. I need to buy more. Website says 1.6kg of sulphur
it is important to know how much sulfur is used in volume( liter, Gal) not in weight ( kg). The quantity sulfur needed is determined in volume.
It is also important to have an idea of the daily nitrate production which has to be removed daily. With the device in use this can be determined using it. Bring up the reactor to its max capacity, increasing the flow until the effluent does not stabilizes at O any more. Decrease a little bit till 0 effluent. This may take a few days. Than leave it. When level descends, more than the daily production is removed. At some point the nitrate level will not descend any more. Only the daily produced quantity is removed. Multiplying the daily flow with the nitrate level in the system will give the daily nitrate production. At this point flow should be increased to enter more nitrate. if this can not be done having 0 nitrate in the effluent a few days later the max capacity of the reactor is reached. The reactor is not big enough to reduce the nitrate to a lower level. Do not start decreasing the flow at this point because it will kill the beasts. Just a little bit to eliminate possible nitrite production.( which is not a problem). This is how I would do it.
When the daily production is known and the desired nitrate level in the system is decided one can determine the quantity of sulfur needed . When these parameters are not known a 1% reactor is advised.
Any container that can be closed air tight can be used to build a fluidized bed reactor, this for a few dollar.