composting toilet report - Page 34 - SailNet Community

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  #331  
Old 01-13-2012
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woow
interesting topic
thx for posting
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  #332  
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[QUOTE=HeartsContent;816159]2. Pooh gets dumped somewhere on land, could be laced with fecal bacteria that can cause sickness (unless you store it for a few years - yah right!).
-QUOTE]

Years? Bit of an huperbolic statement. Consult holding times at 30 C on page 5 of this EPA fact sheet. http://water.epa.gov/aboutow/owm/upl...07_14_comp.pdf

Seems summer storage in a container in the sun ought to kill things in a matter of weeks, provided it is kept aerobic, and moist. Hey if you want to flush and forget, taking no more responsibility on, have at it and pump ut or dump to a land head.. I myself enjoy the challenges of doing appropriate disposal independent of the municipality.
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  #333  
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I'm not sure the "crops" collumn is correct.

[QUOTE=ewoden;816345]
Quote:
Originally Posted by HeartsContent View Post
2. Pooh gets dumped somewhere on land, could be laced with fecal bacteria that can cause sickness (unless you store it for a few years - yah right!).
-QUOTE]

Years? Bit of an huperbolic statement. Consult holding times at 30 C on page 5 of this EPA fact sheet. http://water.epa.gov/aboutow/owm/upl...07_14_comp.pdf

Seems summer storage in a container in the sun ought to kill things in a matter of weeks, provided it is kept aerobic, and moist. Hey if you want to flush and forget, taking no more responsibility on, have at it and pump ut or dump to a land head.. I myself enjoy the challenges of doing appropriate disposal independent of the municipality.
The soil collumn states 50-120 days. For most of us, some of those days will be below freezing and don't fully count (document stated 20-30C), unless composting is active enough to generate heat. But more than 120 days should not be a problem in a shore-based compost pile.
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Last edited by pdqaltair; 01-13-2012 at 01:53 PM.
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  #334  
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Originally Posted by knothead View Post
I also take the time to mix in about 1/4 by volume of biochar. It's my personal opinion that the charcoal helps absorb odor. Remember, my system does not use a fan at all but is a simple bucket emptied once a week. I can't really prove the biochar helps with the odor since there is none, but at the very least it is a valuable additive for the finished compost.
At last another use for my wood stove waste.
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[QUOTE=pdqaltair;816360]
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Originally Posted by ewoden View Post

The soil collumn states 50-120 days. For most of us, some of those days will be below freezing and don't fully count (document stated 20-30C), unless composting is active enough to generate heat. But more than 120 days should not be a problem in a shore-based compost pile.
Actually doesn't it state <120 days and usually <50 days? So I'd say this is compatable even at worst case.
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  #336  
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[QUOTE=ewoden;816366]
Quote:
Originally Posted by pdqaltair View Post

Actually doesn't it state <120 days and usually <50 days? So I'd say this is compatable even at worst case.

Still picking facts you like....

No, not all worst cases. For example, I'm still sailing and it won't hit 35F today. No composting activity. I would need to hold the material until perhaps May or June.

But I can put it in the trash or wait that long. and that may be OK.
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@pdq:

I work in water/wastewater. When I consider the arguments here about environmental responsibility when it comes to sewage, I usually just chuckle. But in the interest of clarity, a lake or ocean is a very large ecosystem that will have no trouble absorbing the effluent from the typical density of recreational boaters. Some may have higher densities and larger issues, but I'm talking averages. If you peed in your neighbours pool, he might get uptight if he found out, but realistically it would only cause his chemical/filtration costs to go up. Remember, urine is water with a nutrient content which can either be chemically inactivated or filtered.

As to the 'other' waste product being discussed. Don't eat it, it's not good for you. If you mix it by hand, make sure you wash them very well before eating your sandwich. If the thought of it being dumped under a random tree or a dumpster upsets you, then you might want to watch pet owners very carefully when they're out walking fido.

I love interweb debates. :/
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  #338  
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[QUOTE=pdqaltair;816375]
Quote:
Originally Posted by ewoden View Post


Still picking facts you like....
Ha ha the difficulty with electronic exchange or perhaps a quote betraying a desire to seem scholarly and incontrovertible. Obviously I can't tell without knowing the poster personally not base concludion on this exchange to this point so I'll assume the former and chalk it up to poor communication on my part :-)

To recap:I intitially responded to a point by another saying composting boat waste off the boat would take years. I pointed to a document referenced elsewhere that showed pathogenic performance at 30 to 80 C. I concluded a container in the sun would be compatable with such consitions (as an aside I know I can maintain said temps in the sun from solar heating design efforts). Again I was referring to a table showing performance at temps between 30 and 80 C. The poster quoted above chose to interpret said table as establishing limits from 50 to 120 days. That was incorrect and I pointed that out and indicated a worst case in the table of less that 120 days...again it is a table at 30 to 80 C. Politely I pointed this out I might add. Quote above is countered by an ad hominem attack alledging some bias on my part and adding in conditions outside the referenced table parameters and outside the intitial point of the post response.

I never said anything about a cold boat anywhere in the string and nowhere reference data for conditions below 30C and did not insintuate that referenced shoulddata apply to other conditions. Therefore I believe it inappropriate for one to assume my string of exchange had done so or that I misapplied or biased any facts in the discussion.

So having said my piece and defended my honor, I'll now lay down the pen and let the quoted poster conclude they have in some way put me in my place; chastised me appropriately for my obvious lack of intellectual rigor; and perhaps provide further opportunity for the development of a data set for me to test my hypothesis about the quoted poster's motivation. Peace.
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  #339  
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Quote:
Originally Posted by ewoden View Post
At last another use for my wood stove waste.
I recommend that you sift out as much ash as possible before pulverizing the charcoal. Ash does not help composting at all.
Don't ask me how I discovered that.
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Quote:
Originally Posted by PaulfromNWOnt View Post

If you mix it by hand, make sure you wash them very well before eating your sandwich.
After a couple of days "hands on" with my prototype I do have one observation I believe worth noting. Stirring, agitating the container, etc. without an airstream vented outside would tend to generate fine particulate suspended in the atmosphere as things dry. The extent to which this dust might be contaminated with fecal associated pathogens is something I heretofore have not considered. This might be a point to consider when one thinks about where this apparatus is to be used, i.e a rolling pitching boat with limited ventillation below decks.
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