George:
Seriously, it is possible that your BH media is lot better than lava raocks, for example, it could be much more porous than other rocks providing much larger surface area (per lb of weight) for bacteria to grow to form that some scientists call "biofilm". I have seen lot more porous synthetic ceramic beads than for example silica (or common sand). So, it is possible that 10 lbs of BH could harbor 10 or 100 times more surface area and bacteria than 10 lbs of lava rocks. Then you may see lot better result with BH media than lava rocks. But you need to drop IR/FIR theory. If you continue on that line, first tell me what wavelengths (or wave numbers) you consider IR and FIR. Second, the analysis you did for DOD, what wavelength IR/FIR you detected coming out of BH? How does it compare with sun-baked lava rocks? |