after reading a thread in aft i was introduced to a media that out preformed K1 and i wondered where i could get some of this. the product is called linpor and is not yet available in the aquarium trade for small scale. this is used for large waste water treatment plants. i contacted a designer of these waste water treatments and advised that we needed this in the aquarium trade and if it possible to get. while he is looking this up to see if it is cost effective to bring the media in on a smaller scale for our purposes i thought i would get more eyes on this and get some talk going to see who all is interested as i know i am, and after looking at the research i think the rest of you will be as well. i know i want the best lets see who agrees and disagrees. if we want this product i think we need to creat a buzz on it.
here is the original quote and thread.
Found this old interesting article, and thought some might be interested....
I have started using Kaldnes K1 media for about 9 months, and I find them to be very hassle free. As such some of my interest in filtration has been pretty much focused on fluidised bed filtration and moving bed filtration.
Below is the comparison of the industry best filter medias put to test using municipal wastewater.... Enjoy reading and feel free to discuss.
"In order to compare the performance of biofilms growing on different support media, three reactors were fed with municipal wastewater ...
The support media tested have the commercial names of Kaldnes, polyethylene special support for moving bed reactors with approximate diameter of 12 mm; Liapor, ceramic spheres with diameters between 4 and 6 mm; Linpor, plastic foam cut in cubes of 15 mm.
The bench-top reactors were tested for COD, TSS and ammonia nitrogen removal. During 452 days runs with organic loads between 0.5 and 8.0 gCOD/m2 x d were tested. Thin biofilms (Kaldnes and Liapor) perform better for COD and ammonia removal under lower organic loading values (< 2.5 gCOD/m2 x d). For organic loads over 3.0 gCOD/m2 x d, the reactor packed with Linpor (thick biofilm) showed a better COD and ammonia nitrogen removal than the other two. Linpor achieved the highest NOx-N production reaching values between 15 and 20 mg/l. For low organic loading rates Linpor and Liapor present similar average NOx-N concentrations. Kaldnes shows the lowest concentrations throughout the whole experimental period. The difference between ammonia nitrogen removal and NOx-N generation is simultaneous denitrification inside the deep biofilms. The average mean cellular retention times were 5.4 days for Liapor, 10.0 days for Kaldnes and 22.9 days for Linpor. This is the reason why Linpor achieved complete nitrification even with higher organic loads."
here are some threads showing the research.
http://www.ncbi.nlm.nih.gov/pubmed/17506444
http://www.dep.state.pa.us/dep/deput...ews/LinPor.htm
http://www.iwaponline.com/wst/04911/wst049110287.htm
http://www.arowanafishtalk.com/foru...ce-in-Moving-bed-filtration&p=32880#post32880
just google linpor and you will find more research on the subject.
here is the original quote and thread.
Found this old interesting article, and thought some might be interested....
I have started using Kaldnes K1 media for about 9 months, and I find them to be very hassle free. As such some of my interest in filtration has been pretty much focused on fluidised bed filtration and moving bed filtration.
Below is the comparison of the industry best filter medias put to test using municipal wastewater.... Enjoy reading and feel free to discuss.
"In order to compare the performance of biofilms growing on different support media, three reactors were fed with municipal wastewater ...
The support media tested have the commercial names of Kaldnes, polyethylene special support for moving bed reactors with approximate diameter of 12 mm; Liapor, ceramic spheres with diameters between 4 and 6 mm; Linpor, plastic foam cut in cubes of 15 mm.
The bench-top reactors were tested for COD, TSS and ammonia nitrogen removal. During 452 days runs with organic loads between 0.5 and 8.0 gCOD/m2 x d were tested. Thin biofilms (Kaldnes and Liapor) perform better for COD and ammonia removal under lower organic loading values (< 2.5 gCOD/m2 x d). For organic loads over 3.0 gCOD/m2 x d, the reactor packed with Linpor (thick biofilm) showed a better COD and ammonia nitrogen removal than the other two. Linpor achieved the highest NOx-N production reaching values between 15 and 20 mg/l. For low organic loading rates Linpor and Liapor present similar average NOx-N concentrations. Kaldnes shows the lowest concentrations throughout the whole experimental period. The difference between ammonia nitrogen removal and NOx-N generation is simultaneous denitrification inside the deep biofilms. The average mean cellular retention times were 5.4 days for Liapor, 10.0 days for Kaldnes and 22.9 days for Linpor. This is the reason why Linpor achieved complete nitrification even with higher organic loads."
here are some threads showing the research.
http://www.ncbi.nlm.nih.gov/pubmed/17506444
http://www.dep.state.pa.us/dep/deput...ews/LinPor.htm
http://www.iwaponline.com/wst/04911/wst049110287.htm
http://www.arowanafishtalk.com/foru...ce-in-Moving-bed-filtration&p=32880#post32880
just google linpor and you will find more research on the subject.
Maybe this experiment was the reason they came up with the chips lol.....
