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Morska Akvaristika => Uradi sam => Autor teme: Ars - Travanj 17, 2005, 19:16:00 poslijepodne

Naslov: DIY denitrator
Autor: Ars - Travanj 17, 2005, 19:16:00 poslijepodne
link (http://2hot2cool.com/4/afishianado/afishian.htm)
Naslov: DIY denitrator
Autor: Njuška - Travanj 17, 2005, 19:21:00 poslijepodne
Nisam baš skužio. Izgleda kao bio filter(https://www.akvarij.net/forum/proxy.php?request=http%3A%2F%2Fsmileys%2Fsmiley5.gif&hash=d3d599462950977b3522c5964757f8179a200ff3)
Naslov: DIY denitrator
Autor: Stina - Travanj 17, 2005, 19:35:00 poslijepodne
Vidiš isto to jedan kompa pokušava napravit za svoj morski... nikakva
novost, bio filtracija na principu nekakvog preljevnog filtera...




Naslov: DIY denitrator
Autor: cerberus - Travanj 17, 2005, 20:30:00 poslijepodne


Je preljevni filter ali je fora u aktivaciji bakterija koje ne koriste kisik za zivot vec nitrat.Kisikse potrosi jos u cijevi.Po tome bi trebale zamjene vode biti rjedje kaj ne? Wicked. Evo detaljnijeg objasnjenja:  [url]http://saltaquarium.about.com/gi/dynamic/offsite.htm?zi=1/XJ (http://saltaquarium.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=saltaquarium&zu=http%3A%2F%2Fwww.aloha.net%2F%7Ehqf%2Findexdondenitrator.htm) &sdn=saltaquarium&zu=http%3A%2F%2Fwww.aloha.net%2F%7 Ehqf%2Findexdondenitrator.htm[/url]


Zanima me moze li to koristiti i u slatkovodnim akvarijima
Naslov: DIY denitrator
Autor: Stina - Travanj 17, 2005, 20:40:00 poslijepodne
kako da ne... pa to je wet/dry filtracija...
Naslov: DIY denitrator
Autor: cerberus - Travanj 17, 2005, 20:52:00 poslijepodne
Koliko znam filter (bakterije) preradjuje amonijak u nitrit, zatim u nitrat. A ovo je denitrator, znacirjesavas se tog nitrata koji stvori filter.Isjecak iz texta - "Well, now the ANAEROBIC bacterias begin to flourish, the very ones that feed on nitrate, not O-2!"
Naslov: DIY denitrator
Autor: Stina - Travanj 17, 2005, 21:14:00 poslijepodne
Dobro, sve to štima, a sad ti meni objasni kako unutra napravit monokulturu bakterija koje se hrane SAMO NO3?!?!

Siguran sam da unutra ima i NO3 i "običnih" nitrificirajućih bakterija...



No u ostalom, ukoliko je tako kako piše, onda je za slatkovodne
akvarije sa PUNO riba gdje su nitrati visoki ili za obični reef tank...


Naslov: DIY denitrator
Autor: Branko - Travanj 17, 2005, 21:19:00 poslijepodne
Takvi filteri rade na principu da voda kroz njih prolazi jaaako sporo (cca 1 kap u sekundi ili sporije), pa se potroši kisik, pa se razmože anaerobne bakterije. Ima i takvih komercijalnih filtera ali imaju dvije vrste bioballsa, mali broj nekih bijelih koje jedu bakterije, i dodaju se kulture bakterije radovito (pogledati na aqua medic stranicu).Edited by: Branko
Naslov: DIY denitrator
Autor: cerberus - Travanj 17, 2005, 21:57:00 poslijepodne
Tako je, pise da voda ne smije imati stalan tok vec nesto izmedju kapanja i toka, ali opet ako je prespor protok, voda se usmrdi. kisik se potrosi jos u cijevi tako da dalje niti ne mogu opstati "obicne" bakterije vec samo ove anaerobne. Cini se to good to be true ali tko zna, treba probati zatim kritizirati (https://www.akvarij.net/forum/proxy.php?request=http%3A%2F%2Fsmileys%2Fsmiley2.gif&hash=37d2b1f68093b901c215e5a29629cbe8accc72d2)
Naslov: DIY denitrator
Autor: cerberus - Travanj 17, 2005, 22:01:00 poslijepodne
BTW. zna li tko gdje bi se mogle nabaviti te plave bioballs?
Naslov: DIY denitrator
Autor: Stina - Travanj 17, 2005, 22:11:00 poslijepodne
Imaš ih u svakom boljem petshopu...

Nego, misliš li da su ti baš ti plavi bioballsi potrebni!?(https://www.akvarij.net/forum/proxy.php?request=http%3A%2F%2Fsmileys%2Fsmiley2.gif&hash=37d2b1f68093b901c215e5a29629cbe8accc72d2)


Naslov: DIY denitrator
Autor: Ars - Travanj 17, 2005, 22:49:00 poslijepodne
Citat: Branko
Takvi filteri rade na principu da voda kroz njih prolazi
jaaako sporo (cca 1 kap u sekundi ili sporije), pa se potroši kisik, pa
se razmože anaerobne bakterije. Ima i takvih komercijalnih filtera ali
imaju dvije vrste bioballsa, mali broj nekih bijelih koje jedu
bakterije, i dodaju se kulture bakterije radovito (pogledati na aqua
medic stranicu).

nisam prije bio online.. kako je branko rekao.. inache se u počektu
dozira oko 15 kapljica po minuti a kada iz izlaza bude nitrat nula onda
se stavi na 60 kapljica po minuti..

Naslov: DIY denitrator
Autor: Mislav1 - Travanj 18, 2005, 09:17:00 prijepodne


Prije par godina ja sam se jako interesirao o ovom tipu filtracije. U teoriji to jako lijepo zvuči, ali u praksi ga je užasno teško podesiti da radi kako treba. Za coil denitratore potrebna je i jaka pumpa koja će moći protisnuti vodu kroz tu usku, dugačku i namotanu cijev.


U pravilu se prije ili kasnije coil denitrator zaštopa i onda se sve usmrdi.
Naslov: DIY denitrator
Autor: Vedran - Travanj 18, 2005, 09:33:00 prijepodne


Mislave, a imaš li kakvih saznanja o SERA denitratoru?


Ars, ako je to OK , evo ti link  [url]http://www.orbicon.com/hraquatica/forum/topic.asp?TOPIC_ID=2 (http://www.orbicon.com/hraquatica/forum/topic.asp?TOPIC_ID=2153&FORUM_ID=18&CAT_ID=5&Forum_Title=Ponuda&Topic_Title=prodajem+Bio%2DDenitrator&whichpage=1) 153&FORUM_ID=18&CAT_ID=5&Forum_Title=Ponuda& Topic_Title=prodajem+Bio%2DDenitrator&whichpage=1 [/url]


neko iz Splita ga prodaje...
Naslov: DIY denitrator
Autor: Mislav1 - Travanj 18, 2005, 09:37:00 prijepodne
Nemam. Nisam ga nikad vidio.
Naslov: DIY denitrator
Autor: Ars - Travanj 18, 2005, 10:11:00 prijepodne

Citat: Vedran

Mislave, a imaš li kakvih saznanja o SERA denitratoru?


Ars, ako je to OK , evo ti link
http://www.orbicon.com/hraquatica/forum/topic.asp?TOPIC_ID =2
153&FORUM_ID=18&CAT_ID=5&Forum_Title=Ponuda& amp;
Topic_Title=prodajem+Bio%2DDenitrator&whichpage=1  



neko iz Splita ga prodaje...

100 jura.. s obzirom da imam više manje sve za njega DIY mi je primamljiviji..

a za jaku pumpu.. njega je problem možda napunit, tj. tu dugu gumu, ali
posli se radi o kapanju pa ne virujem da će to bit problem..

a drugo - da se začepi.. svugdi di sam čita su rekli da je najbolje
ulaz stavit iza mehaničke filtracije.. znači recimo da ide ovako:

1. komora - mehanička, 2. komora - pumpica za denitrator..

Naslov: DIY denitrator
Autor: Vedran - Travanj 18, 2005, 10:15:00 prijepodne


(https://www.akvarij.net/forum/proxy.php?request=http%3A%2F%2Fuploads%2FVedran%2FBio-Denitrator.jpg&hash=e386aaaaada871e83b6802fb67543a1cf5edaff7)
Naslov: DIY denitrator
Autor: Seba - Travanj 18, 2005, 11:26:00 prijepodne
Što se tiće serine igračke, ja sam se malo raspitivao po stranim forumuma i zaključak je bio da ok rade jedno vrijeme a onda sve pukne..
Naslov: DIY denitrator
Autor: chubby - Travanj 18, 2005, 11:34:00 prijepodne


ovo je napisao isti onaj covjek koji je razbio mit o nitrifikaciji i njenoj komercijalizaciji, dr. tim hovanec ...


zasto je komplicirana i koji su problemi u balansu?
Denitrification, on the other hand, will not proceed unless the aquarist active provides, and continues to promote, a special environment which has a low redox potential. First, an anaerobic area must be provided. Oxygen will kill the bacteria, halting the process and necessitating the restarting of the filter (meaning the bacteria have to become re-established). This is not an easy thing to do. How does one create such an environment. Where should you put it in the tank? How do you assure that it remains anaerobic. Unfortunately, I have no answers readily available. One option is to chemically strip the oxygen from the water but this is expensive and involves chemicals which might not be compatible with the rest of the system.

Another problem is to provide a constant source of the organic carbon required by the bacteria. This means mixing it up and delivering it at the correct infusion rate which will change over time. There is not enough naturally occurring organic material in an aquarium to keep the process going. Exactly how do this for an aquarium is not well documented.

Lastly, there is the problem of balancing the system so the intermediate products do not accumulate. The first product produced when nitrate is reduced is nitrite. As mention before, this is a toxic compound and it should not build-up in an aquarium. In many denitrifying systems, nitrite is a constant problem. The reason is usually an insufficient (incorrect) assemblage of microorganisms. The problem is providing and maintaining the correct assemblage of microorganisms. How to do this is again not well known. What is known is that redox potential can be an important indicator. Denitrification proceeds well within a range of redox values but if the redox gets too low than sulfate will be reduced to hydrogen sulfide which is a poison. Usually the cause of a redox value being too low is a lack of substrate for the bacteria to utilize. Thus, one has to carefully control the flow of nitrate and organic carbon into the system. To much and oxygen may enter it, too little and there won't be enough and sulfate reduction can occur.
sta misli o DIY denitratorima...
Does all this mean that denitrification should not or cannot be done by the hobbyist? The answer is no. But the hobbyist should know beforehand about the myriad of potential problems associated with denitrification. Constant monitoring of the water quality is needed so the process can be tracked and if needed, corrective action taken. Detailed notes should be taken so that reasons for successes and failures are known. In this way you can repeat the positive but not the negative. Further, your notes could be the basis for your own article about denitrification.


nesto o gotovim proizvodima ...



Finally, there are a few commercially available systems for denitrification. They range from simple to complex. Some 'systems' are basically nothing more than a pile of granular media that is allowed to sit in the sump of a tank without being disturbed. The manufacturers of this say that the inside area of the pile will go anaerobic and denitrification will commence. My experience with these systems is that they do nothing towards lowering the nitrate levels in the aquarium
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nesto o tipu ovog "arsovog"...
Other systems for denitrification involve a sealed chamber through which a portion of filter water is directed at a very slow flow rate. There is a separate tube in which a pellet of organic carbon is added periodically. These systems must run for a long time before the water exiting the system slow any signs of a nitrate concentration lower than the inflow water.
Naslov: DIY denitrator
Autor: Mislav1 - Travanj 18, 2005, 13:11:00 poslijepodne


Da, ovaj članak dobro opisuje probleme koji mogu nastati.


Moje je mišljenje da svaki akvarij treba držati što jednostavnije, sa što manje opreme. Ona oprema koja je nužna neka bude najbolja koju si pojedinac može priuštiti.


Pod nužnim za morske akvarije smatram živo kamenje, dobar protok, svjetloi protein skimmer. Ostala oprema može doći naknadno.