[Sc-aquaponics] [Aqua-ohio] Biofilter Material for Aquaponics

[Cecil & Julie]

Joey,

I use a polyethylene media called MB3 from Water Management 
Technologies (WMT) in a moving bed filter (mbbr) composed of a 55 
gallon plastic drum, a membrane diffuser in the bottom center of 
the drum where air in pumped in, an intake water line bottom side 
that pumps in water from the clarifer tank, and an overflow pipe 
that drops the water into my raft tanks via gravity.

It's half the price of Kaldnes and is made in the U.S., unlike 
Kaldnes that is now made in China. Nothing against free trade but 
I go American any time I can, and at half the price @ $25.00 per 
cubic foot it can't be beat. WMT actually has data on their 
website that shows it works better than Kaldnes.

http://www.w-m-t.com/Products/WaterTek_MB3_Moving_Bed_Media.php

What I really like about the mbbr filters is they are small 
footprint, self cleaning, no maintenance and relatively cheap to 
build. Lots of oxygen in the tank too!









--


On Tue Aug 06 11:47:00 CDT 2013, "Tiu, Laura" <tiu.2 at osu.edu> 
wrote:

> I'm not a RAS expert, but I do know that these popular biofilters 
> use LDPE beads.
> http://www.aquaticeco.com/subcategories/1534/Propeller-Washed-Bead-Filters/mag%20drive/2
> Laura
> 
> Laura Tiu, PhD Aquaculture Extension Specialist
> 740-289-2071 x.121 Office | 800-297-2072 x. 121 Office
> tiu.2 at osu.edu
> 
> From: aqua-ohio-bounces at lists.service.ohio-state.edu 
> [mailto:aqua-ohio-bounces at lists.service.ohio-state.edu] On Behalf 
> Of Joey Ellwood
> Sent: Monday, August 05, 2013 5:54 PM
> To: Aqua-ohio at lists.service.ohio-state.edu; 
> sc-aquaponics at lists.service.ohio-state.edu
> Subject: [Aqua-ohio] Biofilter Material for Aquaponics
> 
> HI Folks,
> 
> Does anyone know if LDPE (low-density polyethylene) can be used 
> in a biofilter for an aquaponics system?
> 
> Thank you,
> Joey
> 
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