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1

Montag, 7. Januar 2019, 17:09

Holzkohle als Substratzusatz

Hello everyone

I read here in the Forum again and again, the Holzkohlengries as aggregate is used. When researching this I read that Kohlegries is a very good water storage. But so are other additives. Or the reason is, the Kohlegries a disinfecting effect is attributed to?
Because I read my something to have, that the muddy fabric is cut off in the case of a putrid body, and the body is then dusted with coal.

In addition, I wonder whether charcoal is really that good. Since I am running a South American Aquarium again for a year, I wanted to have also as soft water. For this, I filtered rain water with activated carbon, which has used very good work (as I previously thought). The fish have tolerated that well, but the plants it took in record time (previously not noticed something, I had at that time no plants in the basin). When I then this summer due to the dry am switched to an osmosis system, all the plants have recovered quickly and show color again. I could make the filtered rainwater as cause for my problems with the carnivores.

Is it true, that charcoal something entirely else is as charcoal/Biochar? Maybe I was in this respect quite naive, but I would have expected more that my fish would indicate to me that something is wrong, instead of my plants...

Already thank you for your help.

Best regards, Ralf

2

Dienstag, 8. Januar 2019, 13:33

Very good question Ralf, there also some things would be interested. I give Kohlegries (made in the Icecrusher from charcoal; dust how stupid) in deep pots to mainly because it loosens the substrate is stable structure and probably there should be a disinfecting effect. That it saves water, didn't even thought the opposite...
Believe therefore greater surface area and more effective; I is only fine, activated carbon I'm not sure here but also.
Briefly, I throw in hope that it brings what they habit Indians.
Would be more exciting about it to learn...
Michael

3

Mittwoch, 9. Januar 2019, 10:24

Hi Ralf,.

what you describe is already weird and possibly slightly more complex...

Wood and charcoal are the same - organic matter that is heated (pyrolysis) under oxygen conclusion and which remains mainly (rel pure) carbon basic substance here; 80 - 90% carbon, the remainder is charcoal ash (carbonate, oxides, metals).
Charcoal itself has already a very high pore volume (which is why she can store water well).

When the coal is enabled, is a part of the carbon in the coal to carbon monoxide 'burned', so that even extremely increases the porosity and therefore the adsorption ability of coal is also still once strongly increased. You valid 300-2000 m ²/g inner surface of activated carbon.

Charcoal and activated carbon form in connection with water due to the included alkaline and alkaline metal oxide Kali or hydroxides and/or carbonate an alkaline solution (high pH of 8 9).
I therefore think that the problem with your carnivores is a Ph effect. Once you have rain water, that charcoal filtered was tried for the carnivores?

This pH effect is when using Holzkohlengries as substrate addition probably isn't striking through, as we (at least I) use Yes usually peat-based substrates.

If you get a chance, it would be instructive to measure the pH value of activated carbon filtered water.

Hope this helps,
Bernhard.

4

Mittwoch, 9. Januar 2019, 11:55

Thanks Bernhard, for your explanations, very exciting! Because I realize that the school chemistry already a while ago is...
The antiseptic effect of coal is then owed the soluble metal compounds or is it a myth and is based mainly on the quick drying of sore on tubers?
Michael

5

Mittwoch, 9. Januar 2019, 18:52

Hi Bernard,.

I'm speechless... your knowledge seems so limitless. Madness, and thank you.

Me has just surprised that the fish so fine but not arrived, the plants.

What interests me now is Michael's question regarding the disinfecting effect... What is it?

Greetings Ralf

6

Donnerstag, 10. Januar 2019, 01:06

Organisms transmitted n free. Coal can some great, non-polar, organic water ingredients hold back, such as chlorinated hydrocarbons, pesticides or medicines. But heavy metalions (E.g. from lead), nitrate and calcium/magnesium (lime) can not filter out through this process.
Charcoal adsorbs also
In particular the nitrogenous charcoal (bone charcoal in the first row) works dyes, strongly entfärbend.
Adsorbed salts from coal, and that the value of bone charcoal for the sugar production is based to a large extent.
Bitter compounds, glycosides, carbohydrates, particularly alkaloids, are also adsorbed.


Best regards, Sonja

7

Donnerstag, 10. Januar 2019, 10:45

Sonja, that is to say thank you so in short; not decay, but it prevents the carbon won't notice?
Michael

8

Donnerstag, 10. Januar 2019, 11:51

Because you can no longer smell like? :icon_winkgrin:

So as I's in most articles understood I - it prevents rot... Is pointed out again and again. Possibly a chemist/biologist would not bad look, which could explain the relationship. That would be extremely interesting. I'm going out times.
After own experiences faster heal wounds on the tubers with coal - and she probably also not as dry out the tuber as cinnamon, for example, does it. But as I said before I write me ignorant head and collar, I look if I know somebody who can answer that :icon_idea2:

To do this, again the two quotes, then you needs crawl not the whole post:D

As a soil improver, charcoal making loose the ground and also acts through their adsorption capacity for ammonia and carbon dioxide. Ornamental plants with rotted roots can be cured if they are placed in Earth mixed with coal. Heal large wounds to juice plants easily if you sprinkled them with coal powder, also you can pack such plants, tubers and seeds for a longer transport well in coal.



Products are strongly destroyed also decay. Meat surrounded with carbon decompose only after a long time, and without any signs of decay.

9

Donnerstag, 10. Januar 2019, 18:10

Hello Sonja,

Thank you for your contribution. Very interesting.

Greetings Ralf

10

Samstag, 12. Januar 2019, 11:42

Hello Sonja,

It said: "Even rotting products are being vigorously destroyed." But the coal also inhibits the rot itself, i.e. the microorganisms that it probably needs, in contrast to decay, but what I have found about it is rather vague and does not make the question of the effect of coal any easier. This is actually an exciting area, if you find someone who knows more, that would be absolutely awesome!
In any case, the filter or adsorption capability and the increase of the pH value are comprehensible.
Michael

11

Sonntag, 13. Januar 2019, 00:54

So, so far I haven't really moved on - but somebody also pointed out that in rotting processes, yeast fungi are primarily used - and the coal works against them, whereas it can actually do nothing against bacteria. It is also repeatedly pointed out that it is perfect for the settlement of microorganisms thanks to the large surface area. In addition, there seems to be a huge difference between rot and decay... Pretty complex subject. It takes 2, 3 quiet hours until I get there - if at all - satisfactorily.

Greetings, Sonja

12

Sonntag, 13. Januar 2019, 11:11

Do you know how the coal affects the yeast fungi?
Really a complex topic, above all since the damage points usually occur on the surface of the tubers and it would be an aerobic decomposition and thus, according to the net, decay... I haven't found anything that wasn't spongy enough to plunge me into despair...
Michael

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