SuSanA - Forum Kunena Site Syndication http://forum.susana.org/ Thu, 31 Jul 2014 19:34:44 +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 Re: Simple device to deliver water to CW in interval without external power needs or electronic gadgets - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8735 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8735 I regret, it will come sooner them later to blockages within the little storage tank by settled particles and "objects". In front it needs a good settling and in my guessing a "Party-Filter" too, to keep long lasting functionality.
All the Best
Detlef]]>
Constructed wetlands, soil filters and infiltration beds Mon, 26 May 2014 09:27:40 +0000
Re: Simple device to deliver water to CW in interval without external power needs or electronic gadgets - by: Florian http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8732 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8732
thanks, that looks interesting. You say that is for "pre-treated waste water", which is, I assume, solids free wastewater. Does this also work for raw unsettled wastewater?

Regards,
Florian]]>
Constructed wetlands, soil filters and infiltration beds Mon, 26 May 2014 08:09:41 +0000
Simple device to deliver water to CW in interval without external power needs or electronic gadgets "Open Design" - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8717 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/8717-simple-device-to-deliver-water-to-cw-in-interval-without-external-power-needs-or-electronic-gadgets-qopen-designq#8717 Moderator's note: CW = constructed wetland

Dear Colleagues,

See attached photos about a recently very well tested lightweight and compact device to deliver pre-treated waste water under pressure to CW, using just a land level differences of about 0,7 m. It works according to the siphoning principle: Liquid needs only to be primed once, therefore especially handy for complete emptying of the water storage.

The little bucket functioning as a primer and self opening valve for this siphon, to allow storage of an exact volume of water and delivery to CW within intervals. See German manufacturer Mr. Weisheit of this simple siphon-valve "VSS-50" made from PVC: weisheit-kunststoffverarbeitung.de/index.php?kippheber

developed years ago by former "Ingenieurbüro für Abwassertechnik" of Dipl.-Ing. Herbert Reppert.

I used experiences made with other "stop and go" systems made from concrete, pipes, rubber and plastic to deliver water in intervals to CW and others without external power needs. I tried (ongoing) developing a more compact + light weight storage-delivery system made out of PE and partly PVC, with the purpose it can be installed by only one person without crane or without special civil engineering know-how.







Feel free to "Copy & Paste" this simple device. My next Interval-Storage device will have the outlet in front of little bucket to avoid redirection of water outflow.

Any other "OPEN SOURCE- Open design" ideas to keep it more simple, small and lightweight? (K.I.S.S.)

Regards,
Detlef SCHWAGER

..."Just fancy high end technologies are sometimes not appropriate for difficult contexts but also without innovative technical solutions some problems can’t be solved."..
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Constructed wetlands, soil filters and infiltration beds Fri, 23 May 2014 21:30:29 +0000
Re: Sanitary system to replace septic tank or municipal system - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7522 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7522
In the past I opened a topic about a special CW which is "using" Mycelium too for removing pharmaceutical contents. The presentation by University Bremen is in German language. You will find POC on it. You may contact the scientist Mr. Dobner direct. see: forum.susana.org/forum/categories/36-con...iversity-bremen#7165

The moderators of this forum should advise on the right place for contributions on "wicking beds and compost filters"

All the Best
Detlef

+++++++++

Note by moderator (EvM): I have separated the threads now and moved the wicking bed thread to this category (I have also re-named the category to make it a bit broader: "constructed wetlands, soil filters and infiltration beds").]]>
Constructed wetlands, soil filters and infiltration beds Wed, 26 Feb 2014 22:03:01 +0000
Re: Sanitary system to replace septic tank or municipal system - by: patso74 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7521 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7521
The Wicking Bed is a wet technology, and I thought of it as a potential solution when I was reading this post and the end results desired by PaulV. Wicking beds were already in my brain, as I was looking around this forum to see if there were any ongoing discussions over here so I think I may have forced it in here. I read about these about 5 years ago and have only recently come back to this idea as something that I would like to construct and test out for myself.

Where would you recommend to create a discussion for wicking beds and compost filters in this forum? We are already way too off track in this thread.

As for Mycoremediation components ...fungus incorporated either into the wicking bed or at the outlet of the wicking bed.

Here's a link to a Paul Stamets Webpage (various applications)

www.fungi.com/mushroom-info/tag/Mycotechnology.html


Ted Talk by Paul Stamets:

www.ted.com/talks/paul_stamets_on_6_ways..._save_the_world.html


Pat]]>
Constructed wetlands, soil filters and infiltration beds Wed, 26 Feb 2014 21:35:06 +0000
Re: Sanitary system to replace septic tank or municipal system - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7520 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7520
Thanks.
When you talk about your self, it is a bit as you talk about me... For sure many people made very similar experiences around the world.

Now I understand the basics behind the "wicking bed gardens" better, it is a water based system, right? This solution seems to be very OK for wet climatic conditions and in rural settings. For people with much open space as you have in Canada and many places in US too. Unfortunately much much more people around the world have to stay in more crowded condition.

My experiences with so called "close to nature systems" is: "keep it simply as possible" (have nearly no user inputs) or people will turn back very quick to years of HABITS, what ever it is. Do not expect from people more them from your own laziness for maintenance (user inputs) and so on. Better expect nearly nothing...

The mentioned "compost filters" have in my opinion high needs of user inputs, at least on the day of emptying. Proper servicing systems for that are not in place, as it is difficult to find employees to do it.

Your honest intention "cracking the balance between modern technologies and natural (free) technologies" I appreciate very much. On the other side people searching just for personal income, so they try to put on "natural (free) technologies" PATENTS (propriety rights) and make simple things purposely complex and very "scientific". In my opinion for domestic "pipi & kaka" no need for high power consumptions or computer driven small wwtp's, just "use" nature...

Therefore, despite knowing what is right or wrong, engineers have very often two choices only: SALE-SALE-SALE or "sustainable solution" Not much between. The economic system and interests around them forces them very often to work against their own better know-how.

What is mycoremediation components ???

All the Best
Detlef]]>
Constructed wetlands, soil filters and infiltration beds Wed, 26 Feb 2014 19:05:07 +0000
Re: Sanitary system to replace septic tank or municipal system - by: patso74 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7517 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7517
First off a little about me. I have worked as an environmental engineer involved in water and wastewater treatment ranging from large municipal infrastructure projects in Canada to low cost sanitation solutions for NGO's throughout southeast asia. I am also a tinkerer and builder of low cost simple composting solutions and greywater treatment schemes, at my place of residence and where friends and neighbours will allow me to put systems in place.

Over the years my thoughts on sanitation have evolved from looking for high-tech solutions and modern treatment technologies, to the realization that a simpler and site specific design typically results in the most appropriate technology for the given situation. I'm looking forward to someone really cracking the balance between modern technologies and natural (free) technologies.


Thanks for having a look at this concept and your comments. Just a couple of points about the wicking bed as I interpret how it operates (Note: I have built wicking bed gardens but have not explored this option with grey or blackwater):

The system operates as a wicking bed rather than a CW (I am assuming constructed wetland), this results in the "infiltrator " component becoming an aerobic composting chamber rather than a "sludge collector" in an anaerobic/wet condition.

The outlet to daylight, allowing for a free-draining system is what allows for this condition and is the theory behind the system not becoming clogged due to anaerobic sludges.

The maintaining of an aerobic environment, I believe simplifies all further treatment processes and minimizes the issues associated with the anaerobic wastestream created in a typical septic tank configuration (greenhouse gas creation, sludge management etc).

It also allows for the use of flushing technologies, as well as allowing the option to segregate individual wastewater sources to specifically design wicking beds to optimize given the different characteristics of wastewater streams.

Also, my current interest in wicking beds and also compost filters (www.sswm.info/category/implementation-to...water/compost-filter) as a primary treatment are for personal and experimental builds that I am planning for a personal remote cabin. I am also looking at including mycoremediation components to these builds as well as sealing the base layer using natural techniques (gley)rather than impervious plastic liners that I have employed in the past.

I would like to learn from others who have worked with or built something similar, should I create a new topic for discussion, what do you think?


Pat]]>
Constructed wetlands, soil filters and infiltration beds Wed, 26 Feb 2014 17:48:55 +0000
Re: Sanitary system to replace septic tank or municipal system - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7491 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7491
How about you?

Thanks for sharing this idea with us!
Just going through the sketch, I am guessing this combination of sludge collector and CW will get clogged over some time by sludge. For only grey-water this system might do well for long time.

All the Best
Detlef]]>
Constructed wetlands, soil filters and infiltration beds Tue, 25 Feb 2014 19:23:52 +0000
Wicking bed technology and compost filters - by: patso74 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7489 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7489-wicking-bed-technology-and-compost-filters#7489
I am interested into what others think of this concept. There is not a lot of information on these systems and there are documented failures so...

oasisdesign.net/compostingtoilets/watsonwick.htm


Pat]]>
Constructed wetlands, soil filters and infiltration beds Tue, 25 Feb 2014 17:13:31 +0000
Re: Actively aerated treatment wetland systems (engineered wetlands, EW) - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7296 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7296
May you add Ms Nivala's 3 papers to SUSANA-online library too, maybe in a section "engineered wetlands, EW"?

Regards,
Detlef SCHWAGER

Note from Moderator:
Dear Detlef - Thank you for the suggestion. However, at this time the articles cannot be added to the library due to the copyright. (Moderator: RG)
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Constructed wetlands, soil filters and infiltration beds Fri, 07 Feb 2014 11:25:38 +0000
Re: Actively aerated treatment wetland systems (engineered wetlands, EW) - by: nivala http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7294 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7294
The aeration system in these wetlands is NOT provided by a fine bubble diffuser. The full description of our research facility can be found in the attached PDF (Nivala_2013a).

Rather, drip irrigation lines (commonly used for soil wastewater dispersal) are used to deliver air to the bottom of the wetland cell. As far as I am aware, fouling issues have not been reported in aerated wetlands treating domestic wastewater.

However, in situations where high concentrations of iron occur, the oxidation iron can create fouling / clogging issues in the air line. I have experience of this happening to a pilot-scale horizontal flow aerated wetland treating landfill leachate in Iowa (USA). Please refer to the PDF (Nivala_2007) for further detail. In such cases where oxides can form in extremely aerobic environments, extra pretreatment steps may be required in order to keep the aeration network from fouling.

Note from Moderator, the abovementioned Nivala articles can be found through the following links (Moderator: RG)
Nivala 2013: www.sciencedirect.com/science/article/pii/S0925857413000566
Nivala 2007: www.sciencedirect.com/science/article/pii/S0048969706009600
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Constructed wetlands, soil filters and infiltration beds Fri, 07 Feb 2014 11:02:52 +0000
Re: Actively aerated treatment wetland systems (engineered wetlands, EW) - by: nivala http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7293 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7293
Yes, the concept of providing aeration without connecting to the energy grid is a very nice idea. This could be done, as you mention, with a windmill, or with solar power. We have installed a small windmill with a diaphragm air pump at one of our research wetlands here in Germany. You can read about it in the proceedings of the WETPOL conference that was held in Nantes, France in October 2013. Please refer to the page number 186 for the full abstract.

www.emn.fr/z-ener/wetpol2013/uploads/boo...BOOK-ABSTRACTS-7.pdf]]>
Constructed wetlands, soil filters and infiltration beds Fri, 07 Feb 2014 10:56:46 +0000
Re: Actively aerated treatment wetland systems (engineered wetlands, EW) - by: F H Mughal http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7247 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7247
While the bubble aeration gives high oxygen transfer efficiencies, there are some disadvantages to its credit. The aeration basin must have some mechanism for easy dewatering of the contents, due to the cleaning of the pores. This is because the diffusers are subjected to biological and chemical fouling (this impairs oxygen transfer efficiency, as well), requiring frequent cleaning, at a cost, which may be significant. Based on my experience, I always find cleaning a troublesome process.

Mixing of the aeration basin contents is directly related to the oxygen transfer efficiency, and so is the airflow distribution in the basin and selection of rational airflow control diffusers.

F H Mughal]]>
Constructed wetlands, soil filters and infiltration beds Wed, 05 Feb 2014 07:27:52 +0000
Re: Actively aerated treatment wetland systems (engineered wetlands, EW) - by: JKMakowka http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7224 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7224
I think in combination with those wind driven pond-aerators it could be a quite interesting system for some locations. With a vertically mounted wind turbine (en.wikipedia.org/wiki/Vertical_axis_wind_turbine) on top of a tall building it could even be quite interesting for urban settings.]]>
Constructed wetlands, soil filters and infiltration beds Mon, 03 Feb 2014 11:49:09 +0000
Actively aerated treatment wetland systems (engineered wetlands, EW) - by: AquaVerde http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7207 http://forum.susana.org/forum/categories/36-constructed-wetlands-soil-filters-and-infiltration-beds/7207-actively-aerated-treatment-wetland-systems-engineered-wetlands-ew#7207
Find attached PDF of Dr. Jaime Nivala of UFZ Leipzig, Germany. She translated for SUSANA her past DWA-presentation to English language.

It is about horizontal- and vertical-CW with very small space requirements.
To my surprise with up to x1,000!!! higher degradation rate compered to "normal" CW's. This "low-tech" "intensive aerated CWs" was very new to me.

Maybe you heard already about this "low-tech" technology: "intensive aerated CW", developed by Scott Wallace, USA in 2006. Unfortunately it is patented: "Forced-bed AerationTM"...

- VAp 0,6 m2/p.e.
- HAp 0,9 m2/p.e.
- Energy demand for intensive aeration 0.16 kWh/m3 (based on a plant with 5,500 m3/d)
- CW-body is nearly full submerged (dammed), which is very different to "normal" vertical CW's
- On the bottom of "normal" designed CW they have several 16 mm PE-pipes like it is used for irrigation purpose. Instate water air is pumped in and through the coarse CW body.
- The horizontal flow version have the advantage of high E-coli removal rate.
- only 10 h/d aeration via PV (photovoltaic system) is possible/enough.

This application is in my opinion very applicable for very densely populated urban areas.
In my opinion it is not the right choice for typical rural settings.

Maybe you are not surprised if I suggest to have in front of such system an improved septic tank (Biogas-ABR), in my opinion would make this combination a DEWATS with a very small footprint (very compact DEWATS).

Furthermore you can imagine by your self through this air-pipes on the bottom of this EW you may put through other liquids and particles too treat very problematic industrial sewage, see e.g. the "Sulinger-CW's" forum.susana.org/forum/categories/36-con...iversity-bremen#7165

More details in attached PDF. Dear Moderators may you take this public presentation in to your SUSANA-online library.

Regards,
Detlef SCHWAGER



Note from Moderator: The attached PDF can now also be found in the SuSanA library in the following entry: www.susana.org/lang-en/library?view=ccbk...p;type=2&id=1940
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Constructed wetlands, soil filters and infiltration beds Mon, 03 Feb 2014 10:00:39 +0000