Trouble managing Chlorine gas in swamp

[RosenVitae]

So many posts that doesn't quite help me.

I have lots of chlorine to use (about 100+kg) and a swamp I want dug out and decontaminated for expansion.

Trouble is gasses (CO2, Oxygen, Poxygen and Chlorine) mixing in ways that allow slimelung to persist - troublesome when you dig out all of the germ'd slime (for chlorine storage), leaving a huge, irregular hole for gasses to mix uncontrolably.

Suggestions are hugely appreciated :)

[twoxsp]

Slimelung dies in oxygen, so if you can use a bunch of air filters to turn the polluted oxygen into regular oxygen, most of the germs with die off. Exosuits are also really helpful for clearing out all the slime and making the biome a large empty space.

[SKull]

So you want to introduce chlorine in the swamp to sterilize it? You really need to remove the other gases while you're building up the chlorine layer in the middle then. It is pretty easy to develop a thick layer of chlorine between the Co2 and the oxygen, where you can put storage containers for slime to sterilize that for a start, which is really the important thing. Combined with deodorizers in the O2 layer above, that is usually good enough to make it habitable, germs wise.
To deal with the germy Co2 layer next you just need to skim it so the chlorine sinks and it should be pretty much done. But I'm not sure how necessary this is. You're not going to live in swamp Co2, are you? And any dupes who go down into it for some reason will be decontaminated when crossing the chlorine every time anyway. But that;s what I would do anyway.
If you're clever you can open convenient chlorine pockets to plug the Co2 of polluted water wells and things. It's always useful to make a chlorine layer above unsanitary things whenever you can in my experience, so I always look for opportunities to do that. Even just a little can be effective if it's in the right place and has nowhere to go. And you can always plop down a skimmer if the Co2 buildup threatens to pop the cork. This is my poo water plug in the base I am building right now. Just a tiny amount left, but it got rid of all the early slimelung for me:

https://steamcommunity.com/sharedfiles/filedetails/?id=1426169418

From the other side you then have to reduce to O2 pressure so the chlorine rises by not producing oxygen there. So once you have spread the chlorine both up and down in this way from the middle where you introduced it, the swamp will be clean.

Easier to just abuse deodorizers though. Only problem with that is that swamps produce a lot of oxygen so you often get overpressure issues.

[Bellringer]

Slap down a deoderizer or three where polluted oxy is hanging around usually does the trick, I tend to spam deoderizers during the strip mining operation anyway. Pump out polluted water or drop it down to the bottom and cap it off with tiles if you want to stop it producing more polluted oxy.

[leaderdog]

they changed how polluted oxygen works, it's super annoying now. My map has 50-100 deodorizers. Anywhere there is Po2 I stick one since well no other way it will leave. It used to be lighter... I think or heavier than o2 and wasn't that hard to get rid of. Now. It just sits in one spot in the o2

Before you break into the slime area, or the place where a pocket of Po2 is drop one or two deodorizers, then just open one tile so the gas gets sucked out. give it a bit then come back and open it some more, and likely place another deodorizer.

As for Chlorine, it does nothing for the air. Only surface objects. So pumping it full of chlorine only means your dups can't breathe.

Build a room for the chlorine. or a holding area and put your slime in a container in there so it kills the surface germs, some deodorizers above it and it'll eat it. Or submerge the container in water and stuff the slime in there.

[SKull]

Well, the germs in the air die too though, so it's not completely useless. And it certainly helps to have a chlorine pocket or layer between the base and any slime biomes you dig in, because the germs can't really cross it. But I think the OP's approach probably works best with exosuits so the dupes can operate more easily in the chlorine.
I had the same issue you had in my last base btw, with deos all over the place to get rid of the pO2 that never moved up or down, ever. We talked about this a while back here, and the O2 and pO2 are the same density. It'll happily hang motionless above your O2 as well, if it gets a chance. It's just that you tend to find the polluted air near water surfaces and therefore below your clean O2.
But for some reason the circulation seems to have changed. Or been removed. Or something. Pretty sure it all mixed a little more previously. But I could be imagining that. I also imagined that they changed the plinky-plonky space music they had for the first two or three updates to the sort of beach music-y theme they have now. Perhaps there is a medication for rme!

PS: Oh, I know what you could try for the polluted oxygen! What I did about it was build a single ladder from bottom to top where there was almost unbroken slime all the way, and then spaced out about ten deos along that. Then I dug sideways in both directions exactly where the deos were, so they took care of as large an area each as possible. The clean air spreads remarkably far sideways from them if you just open things up a little bit. That way you might not need 500 of them at least.

[RosenVitae]

Appreciate the feedback, people :)

Giving me some inspiration.
Ideally, I would place a gas pump on top and buttom to suck out O2 + CO2 (and pO2 into a separate room with deod's), filtering chlorine to stay.
While Dups can't breathe, they can still get some work done (especially if I micromanage priority/red alert).
I also don't mind they pick up germs, as long as immunity can handle it.

To put things into perspective, this is the approximate area I'm wanting to clean up:
https://steamcommunity.com/sharedfiles/filedetails/?id=1426402459

Another big problem is the water; From the moment I start mining slime, I have limited time to prevent sickness, but I guess the water would shield germs on mined slime from chlorine gas.
If so, I guess I could prepare mesh tiles on buttom to hold water and catch objects for exposure.

I'm gonna try this now and see how it goes. Wish me luck!

[leaderdog]

Just so you know, an oxygen filled room doesn't move Po2 around. The Po2 just sits there. That's why I have so many deodorizers everywhere. When I cut out a slime area like you're doing, I have tile layed and deodorizers ready to capture the Po2.

But, I dig out the world. so it's all just hanging there. And when the stupid little dups drop a slime, because of night time, or bathroom or hunger, on the way to the chlorine storage container room, I have to put a deodorizer where they dropped that slime (typically because I don't notice for some time) because the Po2 just sits there. Carbon and Chlorine the Po2 will sit above but oxygen and it are the same weight/density or whatever now.

and good luck in there ;)

[Bellringer]

With an area like that I'd dig out a pit below, make it big enough to take both pools of polluted water, then run a ladder up to drop the water down. Anything you mine above the water can probably be allowed to drop directly down into it since slime can't offgass germy pO2 if it's in water (or in compactors in water, or in high pressure environments... 2kg or above usually does the job) so it solves both problems in one go for most of that space.

Be aware that pocket of high pressure polluted oxy, at 7kg, is going to spread quite a bit once you release it so have a several deoderisers in place before that happens.

Happy hunting.

[RosenVitae]

Well, here's the aftermath :P

https://steamcommunity.com/sharedfiles/filedetails/?id=1426686045

That pocket of 7kg/tile (10kg by the time I got to it) expanded way more than I had (and could) prepare for.
I also remembered that polluted water emmit pO2 by itself.

I'll have to try using deodorizers as suggested. So, I just plant a load of them with an airlock to contain the pO2 while they clean it?

[Strygald]

Don't think anyone suggested it, but if it's a lot of polluted oxygen with slimelung then pump the whole lot into a sealed off cold biome and the slimelung will be gone in a couple of cycles since it can't survive below 10 celcius.

[Lancar]

To scrub a section of swamp to make a useable area for base building i like to dig it out completely, seal it off, and build a ladder tower with deodorizers every 3 tiles. A few cycles later the section will be pristine & clean, without the use of any fancy gas pumping.

//Edit: oh, and sweep out all the mined slime and store it underwater or in a clorine vat as well. if you dont, the section will never clear.

[RosenVitae]

Originally posted by Lancar:

To scrub a section of swamp to make a useable area for base building i like to dig it out completely, seal it off, and build a ladder tower with deodorizers every 3 tiles. A few cycles later the section will be pristine & clean, without the use of any fancy gas pumping.

//Edit: oh, and sweep out all the mined slime and store it underwater or in a clorine vat as well. if you dont, the section will never clear.

I'll try that.

By "deodorizer every 3 tiles", do you mean both vertically and horizontally?
Also, what would you do about all the polluted water? It gives off pO2 as well.

[Bellringer]

Stick a deoderiser or two above the polluted water and it's pretty much a small scale oxygen generator, or just wait till it settles and finds it's level then build a line of tiles just above it so it isn't in contact with gas anymore, stops it producing pO2.