Journeys on a Limping Mule
Sponsored Links
This presentation is the property of its rightful owner.
1 / 31

Journeys on a Limping Mule PowerPoint PPT Presentation


  • 60 Views
  • Uploaded on
  • Presentation posted in: General

Journeys on a Limping Mule. What We Know About Bioreactors. One who knows and knows that he knows... His horse of wisdom will reach the skies. One who knows, but doesn't know that he knows... He is fast asleep, so you should wake him up!

Download Presentation

Journeys on a Limping Mule

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Journeys on a Limping Mule

What We Know About Bioreactors


  • One who knows and knows that he knows... His horse of wisdom will reach the skies.

  • One who knows, but doesn't know that he knows... He is fast asleep, so you should wake him up!

  • One who doesn't know, but knows that he doesn't know... His limping mule will eventually get him home.

  • One who doesn't know and doesn't know that he doesn't know... He will be eternally lost in his hopeless oblivion!

Ibn Yamin Faryumadi (1286-1368)


UU

KU

KU

KK

KK

UK

UK


KK

KU

UK


Why Bioreactors ?

  • Proven technology

  • Requires no modification of current practices

  • No land taken out of production

  • No decrease in drainage effectiveness

  • Very low maintenance

  • Estimated life - 10 to 15 years

  • Cost effective


Corncob Mix data points

Wood mix data points

Corncob Mix fittedline

Wood Mix fitted line

CD=68%

Concentration of Nitrate-N (mg/L)

Hydraulic Retention Time (mins)

Removal Efficacy is a Function of Oxygen Saturation, Carbon Source and Retention Time


100

20c

50c

80

Measured Points (2oC)

% Nitrate Remaining

60

100c

Concentration of Nitrate-N (mg/L)

150c

40

20

200c

250c

Hydraulic retention time (mins)

Removal Efficacy is a Function of Temperature


First Generation Bioreactors


Diversion

Structure

Second Generation Bioreactors

Length/width dependent on

contributing area

5’ Soil

Backfill

Capacity

Control

Structure

Section

of perforated

tile

Trench bottom 1’

Below tile invert

Woodchips


5’ Soil backfill

Top View

5’ section of non-perforated tile

Diversion

structure

Capacity control

structure


Combination

structure

5’ Soil backfill

Perforated tile

Non-perforated tile


60 minutes after injection

120 minutes after injection


Dissolved MeHg in Bioreactor Inlets

-Eight non-detects

-Six samples contained detectable MeHg

- Maximum: 0.16 ng/L

- Average:0.09 ng/L


Dissolved MeHg in Bioreactor Outlets


Diversion

Structure

Third Generation Bioreactors

Length/width dependent on

contributing area

5’ Soil

Backfill

Capacity

Control

Structure

Section

of perforated

tile

Trench bottom at the

tile invert level

Woodchips


No nitrous oxide was released from the system


Plastic Liner

Solid pipe

Perforated pipe

Perforated pipe

Solid pipe

Phosphorus Removal Chamber


Chipometer


Thank

You!

Richard Cooke

Department of Agricultural and Biological Engineering

University of Illinois


  • Login