Search found 11 matches

by blimpyway
Wed May 13, 2009 8:56 am
Forum: Biofilter
Topic: Drum Biofilter
Replies: 6
Views: 11431

Re: Drum Biofilter

hi, regarding drinking water power requirements - if 2gal/person/day is enough for drinking and cooking, then there-s litle reason to pump and filter more than that. A slow sand filter followed by a ceramic filter (e.g. Berkey filter black cartridge ) should do the job, without requiring high head o...
by blimpyway
Tue May 06, 2008 4:27 am
Forum: Biofilter
Topic: biofilter media options / discussion
Replies: 2
Views: 7590

Re: biofilter media options / discussion

Bob - I wonder how would expanded perlite grains/sand behave ? It is a very light, completely inert, aerated media, with >90% porous space. It is used in thermal insulation and also as hydroponic culture media. I see few possible uses: - as a trickle down filter. - or replacing sand/gravel in a cons...
by blimpyway
Wed Aug 29, 2007 12:13 pm
Forum: Anaerobic Digester
Topic: AD using diaposable diapers
Replies: 3
Views: 8618

I recall a discussion regarding composting diapers - not all of them are biodegradable. I suppose non-biodegradable wont be digested at all.. except for their "contents"
by blimpyway
Fri Jul 27, 2007 4:17 am
Forum: Composting Toilet
Topic: Solviva's flush toilet composting filter
Replies: 3
Views: 9332

If there can be found a way to prevent worm compost bin to become anaerobic when significant amounts of toilet water are flushed through it, while stopping 80-90% of BOD and >50% of amonia, then it could become a great way to minimise wastewater treatment expenses. Followed by a small wetland could ...
by blimpyway
Fri Jul 27, 2007 4:02 am
Forum: Biofilter
Topic: BioFilter Treatment Questions
Replies: 20
Views: 39881

I'm however curious about the required parameters (e.g. free volume, retention time, total area, flow speed, and whatever else is rlevant) a trickle filter should have for full blackwater treatment, either separately from greywater or all waste water together. And then choosing to treat it partially...
by blimpyway
Thu Jul 19, 2007 12:23 pm
Forum: Composting Toilet
Topic: Solviva's flush toilet composting filter
Replies: 3
Views: 9332

Solviva's flush toilet composting filter

I found this composting/filter that is claimed to handle 1.6gal/flush toilet water. It uses worms and has a rather large volume. Another amazing claim is that in 25 months of usage the level of compost did not raised, but it diminished instead from the initial 12 cuft of leaves and sawdust to 9 cu.f...
by blimpyway
Thu Jul 19, 2007 9:04 am
Forum: Biofilter
Topic: BioFilter Treatment Questions
Replies: 20
Views: 39881

Does the system described in the document I pointed to look like a feasible possibility? I dont know, mabe. I think we use an average 180l (~50 gal) / day /person, yet the norms specify a minimum of 300 liter. I also know the cheapest aerated active sludge residential plant can be purchased for a b...
by blimpyway
Thu Jul 19, 2007 7:41 am
Forum: Biofilter
Topic: BioFilter Treatment Questions
Replies: 20
Views: 39881

Yes, I'm interested in water recovery, to the level of making it acceptable for watering the garden. What "acceptable" means - food that is supposed to be cooked. Dominant in country side here are outhouses/pit latrines in old houses and open-bottom "septic" tanks for newer ones. Since we joined EU,...
by blimpyway
Wed Jul 18, 2007 6:46 am
Forum: Biofilter
Topic: BioFilter Treatment Questions
Replies: 20
Views: 39881

Bob, is true that your waste-management design decisions might be very good, but what is a natural step for an ecological-conscious person might be a too large leap for humankind, or at least for most people in my country :wink: That's why I'm trying to figure out is what parameters needs to have a ...
by blimpyway
Sun Jul 15, 2007 2:32 pm
Forum: Biofilter
Topic: BioFilter Treatment Questions
Replies: 20
Views: 39881

A few more questions

Hi again Bob, what is the role of pvc ribbons (those you clean on the video)? Wouldnt the dissolved oxigen flowing out of trickle filter be consumed anyway in the sludge at the bottom of the 2nd tank? Hopefully the bottom sludge will develop a small aerobic colony, without needing pvc ribbons on the...
by blimpyway
Thu Jul 12, 2007 12:29 pm
Forum: Biofilter
Topic: biofilter media options / discussion
Replies: 2
Views: 7590

biofilter media options / discussion

Hi Bob, I apreciate alot the work you do. I think a thread about various options of biofilter media would be interesting. Since I'll start experimenting a small (model) biofilter myself, here-s the type of media it will use. The woven polypropylene bags used to pack cereals or cement are woven with ...