SuSanA - Forum Kunena Site Syndication http://forum.susana.org/ Fri, 28 Aug 2015 17:05:28 +0000 Kunena 1.6 http://forum.susana.org/components/com_kunena/template/default/images/icons/rss.png SuSanA - Forum http://forum.susana.org/ en-gb Manual for greywater treatment in sand and gravel filters in English - by: CWendland http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14299-manual-for-greywater-treatment-in-sand-and-gravel-filters-in-english#14299 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14299-manual-for-greywater-treatment-in-sand-and-gravel-filters-in-english#14299
www.wecf.eu/english/publications/2015/ma...eywatertreatment.php

Greywater management is complementing sustainable onsite sanitation solutions such as an ecosan toilet.
This manual explains how greywater can be treated in a sand or gravel filter before being re-used or discharged. Different greywater filter designs have been demonstrated in Georgia in two villages close to the Black Sea by the Georgian NGO RCDA with guidance by the student Lukas Huhn from Hamburg University of Technology. The technology is very efficient, relatively simple, low-cost and can be realized by practitioners in rural and peri-urban areas of most settings.

Claudia]]>
Constructed wetlands, soil filters and infiltration beds Thu, 23 Jul 2015 17:10:42 +0000
Re: 1950-60 - Inventor of ALL Constructed (engineered) Wetlands: Ms Dr. Käthe SEIDEL 1907 - 1990 - by: muench http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14096-1950-60-inventor-of-all-constructed-engineered-wetlands-ms-dr-kaethe-seidel-1907-1990#14099 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14096-1950-60-inventor-of-all-constructed-engineered-wetlands-ms-dr-kaethe-seidel-1907-1990#14099
FYI Detlef, there is also quite a good Wikipedia article about her in the German Wikipedia:
de.wikipedia.org/wiki/K%C3%A4the_Seidel

(if you have additional information or references about her, feel free to edit the article)

She could also be mentioned in the history section of constructed wetlands in the English Wikipedia article on constructed wetlands (which still needs more work):
en.wikipedia.org/wiki/Constructed_wetland#History]]>
Constructed wetlands, soil filters and infiltration beds Wed, 08 Jul 2015 11:29:51 +0000
1950-60 - Inventor of ALL Constructed (engineered) Wetlands: Ms Dr. Käthe SEIDEL 1907 - 1990 - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14096-1950-60-inventor-of-all-constructed-engineered-wetlands-ms-dr-kaethe-seidel-1907-1990#14096 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14096-1950-60-inventor-of-all-constructed-engineered-wetlands-ms-dr-kaethe-seidel-1907-1990#14096 Beautiful Bulrushes, Remarkable Reeds: The Water Reclamation Miracles of Kaethe Seidel

obituary 1990 by Elisabet Sahtouris, PhD evolution biologist and futurist Gaia’s Dance (Kindle) www.sahtouris.com

~1940-50

~1970

...At eighty-two, Dr. Kaethe Seidel, head of the former Limnology Group of the Max Planck Institute, long nicknamed Bulrush Kate ("Die Binzen Kaethe"), is a tough-minded, clear-thinking scientist with a remarkable record of pioneering work in a kind of biological wastewater treatment that should be far better known and used than is the case. In the course of a professional career spanning over sixty years, she has demonstrated the effectiveness of naturally growing plants in breaking down ballast substances, transposing toxic into non-toxic substances, destroying pathogenic bacteria, viruses and worm eggs, removing heavy metals, cleaning oil spills, removing salt, neutralizing pH, enriching with oxygen, transforming waste water into drinking water and replenishing groundwater --- all with photosynthesis as the sole energy source.

Scientists from NASA, from Japan, from many institutes worldwide who have discovered her [Dr. Käthe SEIDEL] work have visited her to learn more, yet there is relatively little followup given its scope and importance except for the remarkable installations for which she has been more or less directly responsible.

"Why," I asked her, as we sat in the huge old mansion that served as headquarters for the Limnology Group, in the midst of a nature preserve near Krefeld in Germany, where she now lives alone until her immanent eviction, due to sale of the property by the Max Planck Institute.

Her answer was telling. "Men always reach for technology, for development. They insist it will bring us to higher levels of progress. They haven't the patience to work with slow-growing plants, nor do they understand natural cycles as women do. They see my work as farming, not engineering, so they go away and return to their machinery."

"Wait till we run out of water," I countered. "They'll all come running to you then."

"It will be too late then," she said matter-of-factly in her rich, low register voice. "Neither these cabinets, nor the research reports in them, nor I, will be around."

[Sadly, yet perhaps predictably, Dr. Seidel passed away a few months after her eviction.]...
see rest of obituary

Two remarks by Mr. Blumberg (CW-expert):
1. Ingenieurbüro Blumberg:
„Auch die heute übliche intermittierende Beschickung vor allem bei constructed wetlands [PKA] mit vertical subsurface flow [vertikaler Beet-Beschickung] wurde von Dr. Käthe SEIDEL in Form ihrer „Leiterkaskade“ erfunden, eine Versuchsaufstellung, die das Tidensystem (Ebbe und Flut) nachahmt und dadurch den Gasaustausch drastisch befördert. „Das „Auf und Nieder – Einatmen und Ausatmen – Belasten und Entlasten, das war es!“ (Seidel 1974). „In unserem Ebbe-Flut-System wird bei Ablaufen des aufgestauten Wassers Luft mitgerissen und besonders in die Wurzelräume eingezogen, wo sie den abbauenden Bakterien als Energiequelle dient“ (Seidel 1967).“
google-translated: "Also, the now common intermittent feeding especially in constructed wetlands with vertical subsurface flow [vertical bed feed] was developed by Dr. Käthe Seidel in the form of their" invented Head cascade ", an experimental set-up that the Tidensystem (tides) mimics and thereby promoted the exchange of gases dramatically. "The" Up and Down - inhaling and exhaling - loading and unloading, it was "(Seidel 1974)!. "In our ebb and flow system is entrained air at expiration of dammed water and particularly drawn into the root areas, where it serves the degrading bacteria as an energy source" (Seidel 1967). "

2.
Ingenieurbüro Blumberg:
Man lernt u. a. daraus, wie viele Epigonen [m.e. selbsternannte PKA-Guru’s] die fundamentalen Grundkonzepte der eigentlichen ForscherInnen und EntwicklerInnen nur wiederkauen und sich damit wichtig tun, obwohl ihr eigener Beitrag gering oder gleich Null ist.
google-translated: "You can learn, among other things from how many epigones [self-proclaimed CW-guru's] only ruminate the fundamental basic concepts of actual researchers and developers and to do so important, although their own contribution is low or equal to zero. "

For sure you know some more North-Korean or US-inventors of THE CW's from the 1800`s...


Regards,
Detlef SCHWAGER


only in German language:
text of two Patents von Dr. Käthe Seidel
- DE1210388B:
https://depatisnet.dpma.de/DepatisNet/depatisnet?action=pdf&docid=DE000001210388B
Verfahren zum Aufbereiten von Schlamm, insbesondere von Abwasser- und Industrieschlamm, und Anlage zur Durchführung des Verfahrens, vom 17.11.1964.

PATENTANSPRUCH Verfahren zum Aufbereiten von Schlamm, bei dem der Schlamm auf eine wasserdurchlässige Schicht aufgeschichtet und entwässert wird, dadurch gekennzeichnet, dass vor dem Aufschichten des Schlammes auf die wasserdurchlässige Schicht Pflanzen eingepflanzt werden, die an negativ geotrop wachsenden Sprossen Wurzeln treiben.
...

- DE000001484839B2:
Anlage zum biologischen Reinigen von Abwasser, 1964 (mit Schwimmpflanzen = with floating plants)
depatisnet.dpma.de/DepatisNet/depatisnet...cid=DE000001484839B2]]>
Constructed wetlands, soil filters and infiltration beds Wed, 08 Jul 2015 06:34:46 +0000
Re: FTW, Floating Treatment Wetlands only for tropical climate conditions? - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14094 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14094
I know this excellent paper by Prof. Tanner, but it is just based on "warm" Auckland, NZ condition

My "quick and dirty", maybe educated guessing is based only on "warm & cold" anaerobic experienced made on ABR... I know, not much similar.

During "cold" winter time nutrient uptake by floating plants will be "0", but "The Biofilm" will still do a "job", more or less similar to ordinary aerobic CW's.

Maybe I could use roughly as a start and comparison less needed CW- m2/p.e. for the tropics?

Maybe mentioned reference: Van de Moortel A.M.K., Meers E., De Pauw N., Tack F.M.G. (2010). Effects of vegetation, season and temperature on the removal of pollutants in experimental floating treatment wetlands. Water, Air and Soil Pollution 212:281-297. will indicate more, but I do not have access and it is just based on a laboratory tests. I prefer real rough conditions

Detlef]]>
Constructed wetlands, soil filters and infiltration beds Wed, 08 Jul 2015 05:11:23 +0000
Re: FTW, Floating Treatment Wetlands only for tropical climate conditions? - by: bones http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14093 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14093
www.massey.ac.nz/~flrc/workshops/11/Manuscripts/Tanner_2011.pdf

Don't know much about FTW specifically, and don't know what leads you to think that 2x would be a good scale factor, but could you compare conventional wetland treatment in cold/tropical climates, and use a similar scale factor?

Nigel]]>
Constructed wetlands, soil filters and infiltration beds Wed, 08 Jul 2015 04:34:10 +0000
Floating Treatment Wetlands only for tropical climate conditions? - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14065 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/14065-floating-treatment-wetlands-only-for-tropical-climate-conditions#14065 FTW, Floating Treatment Wetlands for cold climate conditions too!?

Dear colleagues,

All textbook on the subject and R&D literature on the Internet on FTW's are based on permanent warm climatic condition.

So, in my educated guessing I would increase tropical HRT guidelines "just" by 2x!?
... risking Eutrofication

I am searching for informal hints based on practical made "cold" experiences.

Thanks in advance.

Detlef]]>
Constructed wetlands, soil filters and infiltration beds Mon, 06 Jul 2015 12:02:04 +0000
Re: Fruit trees irrigated by grey water in Uganda - by: Ababu http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13954 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13954 Constructed wetlands, soil filters and infiltration beds Tue, 30 Jun 2015 19:15:56 +0000 Re: Fruit trees irrigated by grey water in Uganda - by: HAPitot http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13951 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13951
Cheers, H-A]]>
Constructed wetlands, soil filters and infiltration beds Tue, 30 Jun 2015 15:42:23 +0000
Re: Fruit trees irrigated by grey water in Uganda - by: Ababu http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13942 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13942
Thanks for sharing. It is one more good news for grey-water believers like me. I also would like to share with you below my grey water dam which is already past its first year and is maintaing its good yield so far.]]>
Constructed wetlands, soil filters and infiltration beds Tue, 30 Jun 2015 11:29:53 +0000
Fruit trees irrigated by grey water in Uganda - by: HAPitot http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13829 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/13829-fruit-trees-irrigated-by-grey-water-in-uganda#13829
I have posted some photos of a very successful attempt to irrigate fruit trees with grey waste water in Moroto, Uganda:
www.flickr.com/photos/gtzecosan/sets/72157654565638740

Enjoying the fruits of waste water by SuSanA Secretariat, on Flickr

The photos show the irrigation of a bed of pawpaw trees using the waste water from the kitchen sink in the house the I was renting in Moroto, Uganda. The technique has worked out very well - the pawpaw trees have given fruit in less than two years and have been growing throughout the dry seasons... And now you see the lady renting the house after me enjoying the fruits!

Hope you enjoy as well!

Hanns-André]]>
Constructed wetlands, soil filters and infiltration beds Tue, 23 Jun 2015 21:42:03 +0000
Re: Constructed wetland to treat cleaning water from ecosan composting toilet (SOIL) poop buckets/drums - by: Marion http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12495 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12495
Thanks for your thoughtful answers and advices!

------------------------------------------------------------------------------------------
About me, I'm an environmental engineer passionated about ecological sanitation, waste management. I studied at EPFL (Lausanne, Switzerland) and UBC (Vancouver, Canada).
I'm working for SOIL since a year now as the SOIL project coordinator in Cap Haïtien (Haïti). SOIL is working in Haïti in ecological sanitation an since 2006. We provide different services: households toilets, mobile toilets (for events, construction sites), and communal toilets. We have 2 composting sites where we treat all of the wastes generated in our toilets.
We are now focusing to develop our household toilet program: Ekolakay toilets. These are container based households UDD toilets. It's a service meaning our customers pay for the Ekolakay toilet every month (about $5 per month). We currently service 320 Ekolakay toilets and are looking to reach a 1000 by the end of 2015.
(more info--> www.oursoil.org)
--------------------------------------------------------------------------------------------

Thanks Jeff for the interesting paper, I think biochar could be indeed something to look at (maybe mixed with the growing medium?). I'll dig into it.

Christoph, yes, the septic tank should include storage. We have been using since 2 years and a half a small septic tank. We recently opened the first chamber and we have approximately 90cm of sludges at the bottom.
We are currently looking to get our effluent tested for TSS and BOD. The effluent requirement we are looking to achieve is focused on pathogens reduction: 1-2 log E.Coli reduction. We have about 200 square meters of land available.

Canaday, the current system was not designed for the amount of cleaning water that we are producing now. The septic tank we have is too small and not achieving sufficient pathogens reduction. Our well (hand pump) is located approximately 30m away from our current septic tank, the water-table is 6m below the ground level.
We clean about 600 buckets (5 gallons) and 120 drums (15 gallons) each week.
Regarding our cleaning process, the buckets are first cleaned (with water from our well) with a pressurized water jet, then soaked into a disinfection bath (water+HTH) during 1 minute and then dried by sun exposure during 1 hour. Remember that these buckets are filled with a mix of poop and cover material (sugar cane bagasse and crushed peanut shells) and that poop can stick to the sides of the bucket. We have to disinfect the bucket regarding legislation and also because in a country like Haiti where we are still dealing with a cholera epidemic, typhoid and various other waterborne diseases we need to be sure we are providing 100% safe equipment in our toilets.
Interesting question about if bagasse floats, I'll dig into the reedbed idea!

Carol, the buckets are cleaned, disinfected dried and filled with our cover material (mix of sugar cane residues and peanut shells) that our customer put aside when they put the bucket back into the toilet. For that reason the bucket need to be thoroughly cleaned and disinfected (health and odor issue).

Have a great day!
Marion]]>
Constructed wetlands, soil filters and infiltration beds Mon, 16 Mar 2015 20:09:47 +0000
Re: Constructed wetland to treat cleaning water from ecosan composting toilet (SOIL) poop buckets/drums - by: Carol McCreary http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12493 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12493
Question: Are these buckets rotated back to households after emptying? If so, couldn't they simply be left to dry a bit and then covered and returned?

Information on Wetlands: Just today there appeared an info-packed article on wetlands."Designing Wetlands to Remove Drugs and Chemical Pollutants" looks at case studies from US wastewater treatment districts. Unfortunately, local jurisdictions have to figure this out because "Currently, there are no U.S. regulations for medical drugs under the Safe Drinking Water Act, and only a few for the residues from consumer products."]]>
Constructed wetlands, soil filters and infiltration beds Mon, 16 Mar 2015 18:57:41 +0000
Re: Constructed wetland to treat cleaning water from ecosan composting toilet (SOIL) poop buckets/drums - by: canaday http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12427 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12427
Welcome to the Forum.

Some thoughts and questions:
-- Are there any problems with the current system?
-- How far away are any water wells or streams? (Infiltration may not be a problem.)
-- How are the buckets washed? It seems that this is a lot of water. Maybe the same water could be used all day for the initial rinse to get solids out, then use the same soapy (or sodium hydroxide?) water for washing, and finally some fresh clean water for a final rinse.
-- Do try to avoid toxic chemicals, like chlorine. Hot water might also be a useful option.
-- Does the sugar cane bagasse float or sink easily to separate it from the water? It could be good to have an ABR or a Reedbed (=Planted Drying Bed) for initial removal of the solids. The Reedbed could get dusted with some of the biochar (that Jeff mentioned) or soil, at the end of each day to control flies.

If you find time, please tell us more about yourself, your professional goals, your goals for SOIL and Haiti, etc.

Best wishes,
Chris Canaday]]>
Constructed wetlands, soil filters and infiltration beds Tue, 10 Mar 2015 13:46:08 +0000
Re: Constructed wetland to treat cleaning water from ecosan composting toilet (SOIL) poop buckets/drums - by: JKMakowka http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12418 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12418 In northern Uganda we also had problems with livestock forcefully entering the wetland to get to the lush green, and while sugarcane also grew well, it is generally not advised to grow crops that can be stolen and consumed raw.
Papyrus or another similar plant that has a non food value is probably best.

A vertical flow "French" system that by design only loaded at intervals should be fine with your usage regime and is usually more effective in treatment due to the aerobic phases. However for best results in pathogen removal you probably need a polishing pond as the last step.]]>
Constructed wetlands, soil filters and infiltration beds Mon, 09 Mar 2015 13:12:21 +0000
Re: Constructed wetland to treat cleaning water from ecosan composting toilet (SOIL) poop buckets/drums - by: christoph http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12408 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/12380-constructed-wetland-to-treat-cleaning-water-from-ecosan-composting-toilet-soil-poop-bucketsdrums#12408 a bit mor information is necessary to assist.
Just some general figures. a) Septic tank should include storage as you have only 3 days of production. Or you go (what I would do) for a sludge minerazlization bed which I would do a bit deeper (to avoid the septic tank). But in order to tell anything it would be necessary to have some basic data - COD, TSS, effluent requirement, space available.

Regards
Christoph]]>
Constructed wetlands, soil filters and infiltration beds Mon, 09 Mar 2015 09:18:40 +0000