New strategy stops pollution and saves the plant nutrients for future recovery (new Smart Toilet from Sweden, a new type of composting toilet)


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  • CompostEra
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Re: New strategy stops pollution and saves the plant nutrients for future recovery (new Smart Toilet from Sweden, a new type of composting toilet)

Dear Goeco,

There are many ways of accomplishing volume reduction and my assumtion is that the process might go through many different stages during the course of its hopefully long life. It has been thought that the ultimate reduction is accomplished through combustion with a remaining ash content. But that again presupposes an aerobic process and in reality the process in the compostera tank over decades goes through a mix of aerobic but with anaerobic pockets in the mass. The gases from which can contain small amounts of sulphur and other gases not expected in a purely aerobic environment. Those gases turn out to often be absorbed by the aerobic environment surrounding the anaerobic pocket and end up not having the odors we would expect. Not unless we stir the pile and release those gases.

The sum total is sometimes that more can leave over decades than we would anticipate from a purely aerobic processing. So it has not been beneficial to design the system for any one special and exclusive process like vermicomposting but allow for several conditions to exist without supposing just one...
Enclosed Long-Term Composting Toilets and Greywater treatment ( )
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  • clint
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Re: New strategy stops pollution and saves the plant nutrients for future recovery (new Smart Toilet from Sweden, a new type of composting toilet)

Hola Goeco,

After having returned from Costa Rica installing rainwater harvesting/greywater treatment/utilization and ozone laundry energy/water/chemical reducing technologies I finally had the time to review your latest message regarding Helminth eggs, of which I really knew nothing.

Obviously, your concerns regarding these parasites are valid, as the quoted information states, but also as quoted, there is an immediate and effective solution by utilizing technology and free energy from the sun for direct heat, evaporation and disinfection if desired with significant amounts of ozone, which can also be economically created and utilized effectively.

Quoting from the internet

Due to this strong shell, helminth eggs or ova remain viable in soil, fresh water and sewage for many months. In feces, fecal sludge and sewage sludge they can even remain viable for several years.[10][11] Helminth eggs of concern in wastewater used for irrigation have a size between 20 and 90 μm and a relative density of 1.06–1.23.[8] It is very difficult to inactivate helminth eggs, "unless temperature is increased above 40 °C or moisture is reduced to less than 5%.[8]"

Helminth eggs contained in wastewater, sewage sludge or human excreta are not always infectious, i.e. able to cause the disease helminthiasis. Fertilized eggs and unfertilized eggs can exist side by side. Unfertilized eggs are identifiable under the microscope by their elongated shape. No larvae can hatch from these kinds of eggs. Therefore, unfertilized eggs do not pose a danger to human health.

In the case of Ascaris lumbricoides (giant roundworm), which has been considered the most resistant and common helminth type, fertilized eggs deposited in soil are resistant to desiccation but are, at this stage of development, very sensitive to environmental temperatures: The reproduction of a fertilized egg within the eggshell develops at an environmental soil temperature about 25 °C which is lower than the body temperature of the host (i.e., 37 °C for humans).[19]

"However, development of the larvae in the egg stops at temperatures below 15.5 °C, and eggs cannot survive temperatures much above 38 °C." If the temperature is around 25 °C, the infectiousness occurs after nearly 10 days of incubation.[7][27][28] Finally, after 2 to 4 weeks in moist soil at optimal temperature and oxygen levels, the embryo develops into an infective larva, named "second-stage larva". This larva has the ability to get out of the egg, hatch in the small intestine and migrate to different organs. These infective larvae (or "infective eggs") may remain viable in soil for two years or longer.[19]

In order to physically remove (but not inactivate) helminth eggs from wastewater, processes that remove particles, such as sedimentation, filtration or coagulation-flocculation are employed.[29][30] Therefore, waste stabilization ponds (lagoons), storage bassins, constructed wetlands, rapid filtration or upflow anaerobic sludge blanket (UASB) reactors can be used. These conventional wastewater treatment processes do not inactivate the helminth ova but only removes them from the wastewater and moves them to the sewage sludge.

Helminth ova cannot be inactivated with chlorine, UV light "or ozone (in the latter case at least not with economical doses because >36 mg/L ozone are needed with 1 hour contact time)."

"Inactivation of helminth ova can be achieved in sewage sludge treatment where the temperature is increased over 40 °C or moisture is reduced to less than 5%.[8] Best results can be obtained when both of these conditions are combined for an extended period of time.[31] Details about the contact time under these conditions and other related environmental factors are generally not well-defined for every type of helminth egg species.[7] Helminth eggs are considered highly resistant biological structures.[8]"

I find your inclusion of a "false floor or french fry basket" aeration improvement invigorating but I totally disagree with you regarding the need for a carbon source for porosity advantages alone not to mention a transportation infrastructure for vermiculture.

I totally agree with you that the traditional old two rotating vessel concept does slowly decompose/evaporate human feces but, we were given the ability to improve our own existence and longevity by utilizing our own grey matter to its greatest advantage and that means using technology to expand our finite resources to their greatest advantage.

My concept of human resource recovery involves free energy utilizing technologies to treat and recover resources from previously as preached "wastes" as quickly as technologically possible in order to return those valuable/finite mineral resources back to our agricultural environment safely.

Our composting/vermiculture technologies mix the carbon source and the incoming human and organic food scrap resources immediately to create an optimal environment for not only all of Carl's aerobic and anaerobic critters but also Hajo's beneficial redworms (vermiculture).

The reason for our technologically improved automated design is to treat and to be able to recover the solid and liquid resources as quickly and safely as possible with a pre-manufactured, self-contained, double-walled vessel, containing the agitators, augers and liquid pumping systems.

Yearly, a much smaller in size conventional service septic pumping vehicle/trailer removes the freshly mixed and, normally providing a 1 year of composting/vermiculture retention time, before easy removal from the bottom with the augers. That "fresh", 90% removed in volume material, is then further composted in that separate mobile composting vessel on the vehicle/trailer, which will then be subjected to free solar heat and evaporation environments to maintain the above 40 degrees C temperatures for whatever period of time, thereby ensuring safe agricultural resources for immediate agricultural non-human edible reuse and recycle.

Whether it be Costa Rica or Bangladesh, as the automobile and cell phones developed, so shall onsite, automated, pre-manufactured water supply and wastewater treatment and recycling systems evolve utilizing technologies designed to maximize the utilization of our planetary resources everywhere and especially in "Developing" countries without the burden of an existing DOOMED piped infrastructure.

"The Rain Man"
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  • Elisabeth
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Re: New strategy stops pollution and saves the plant nutrients for future recovery (new Smart Toilet from Sweden, a new type of composting toilet)

Hi Clint,

You wrote "Quoting from the internet" but didn't provide the source of WHERE on the internet? I guess it's from Wikipedia's article on helminths:

The text looked very familiar to me... No wonder, as I helped write it! :)

If anyone would like to know more about why I work on Wikipedia pages and how you could do the same, please see here on the forum:

It shows once again that Wikipedia is important. Where did Clint turn to, to find out more about helminth eggs? Wikipedia! So we should make sure the information is accurate.


P.S. I am looking forward to the new Wikipedia article on vermicomposting digesters that Dean is working on...
Dr. Elisabeth von Muench
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  • clint
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Re: New strategy stops pollution and saves the plant nutrients for future recovery (new Smart Toilet from Sweden, a new type of composting toilet)

Hola Elizabeth,

Thank you so much for helping me in "Quoting" the source.

You are exactly correct where I quoted the information.

More than helpful!!

Pura Vida,

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