NITROGEN & PHOSPHORUS REMOVAL FROM GROUNDWATER LITTLE BOGUE, MS. CONSTRUCTED NOVEMBER 2009.

NITROGEN & PHOSPHORUS

REMOVAL FROM GROUNDWATER

LITTLE BOGUE, MS.CONSTRUCTED

NOVEMBER 2009

RS2 Test Site: Little Bogue, Elliott, MS

On the narrow mid-bank bench (average width 8-10 ft, approx. 8 ft above the streamside floodplain bench), a trench a bucket wide (1.0 ft) was dug to

a depth of 4 ft. This should intercept a large amount of shallow groundwater.

Research Monitoring & Research Monitoring & AnalysisAnalysis

• Hydrolab used to measure DO, ORP, temp, conductivity, turbidity & pH

• Lab measurement of ortho-P, NO3-N, TOC, alkalinity and NH3-N

0.04 0.05 0.09 0.04

99.499.4

99.2

99.5

0

2

4

6

8

10

12

NO

3-N

(m

g/L

)

98.6

98.7

98.8

98.9

99.0

99.1

99.2

99.3

99.4

99.5

99.6

% R

em

ov

ed

Feed 6.89 7.30 10.70 9.50

Effluent 0.04 0.05 0.09 0.04

% Removal 99.4 99.4 99.2 99.5

6/22/2005 9/12/2005 3/31/2006 7/14/2006

Colorado State Field LabColorado State Field Lab Nitrogen Removal Results

0

10

20

30

40

50

60

70

80

90

100

Cell A (sawdust) Cell B (control) Cell C (WTR)

Ave

rage

P R

emov

al (%

)Colorado State Field LabColorado State Field Lab

Phosphorus Removal Results

Aerial view with approximate research project trench location in yellow & control section (trench not dug) in pink.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE FROM RED HEN VIDEO


There is a 75 ft long control section (nothing done, no trench, just monitoring instruments), and a 150 ft long test trench section. Within the downstream 75 ft of the test trench, three 25 ft-long test plots of adventitious rooting poles of Black Willow, Sycamore, & River Birch were placed, spacing varied from 1 to 2 ft.


For the test section shovels were used to backfill the trench with a mix of 20% (by volume) Aluminum Sulfate, xx% mulch, and the

remainder native soil from the trench. This effectively planted the live poles to a depth of 4 ft.


Monitoring instruments determine performance of the control and planted & not planted test sections. Instruments at different depths

will determine if some groundwater is bypassing the test trench.


According to the CSU laboratory tests, the Aluminum Sulfide and carbon (mulch)

should greatly reduce the Nitrogen & Phosphorus load to the stream.

Install instrumentation as required. Monitor for

long-term project performance.

200 ft

RS2 Test Site: Little Bogue, Elliott, MS - aerial view

Looking US @ entrance conditions into project bend. Note floodplain bench & mid-bank bench where the test will occur.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 4-2-08

Looking US @ the mid-bank bench where the test will be conducted. Control area in pink, test trench location in black.

PRE-PROJECT - RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 4-2-08

LET’S DO SOME

RESEARCH !!

Two bags of Aluminum Sulfate for each bag of Eucalyptus mulch

CONSTRUCTION-RS2 PROJECT-LITTLE BOGUE PIX BY DAVE DERRICK 11-19-08

Hand labor is used to mix Aluminum Sulfate & mulch into backfill. Next time an excavator will be used to mix and backfill, we are

learning!! No plantings in this first 75 ft.


Trench was dug to a consistent depth of 4 ft for entire length


John McCullah says,

“Dig a hole, plant a pole!!”

Looking US @ seeded & mulched trench, berm, & plantings.


MONITORING INSTRUMENT

INSTALLATION PHOTOS BY

CHESTER WATSON JANUARY 12, 2009

Dr. Biedenharn with some of the monitoring instruments.

MONITORING INSTRUMENT INSTALL-LITTLE BOGUE PIX BY WATSON 1-12-09

Looking US @ test site. Excellent planted grass coverage.


Looking US @ the test area. Great rye grass growth on all disturbed areas.


7 MONTHS AFTER PROJECT

COMPLETIONPhotos by Derrick

JULY 3, 2009TAKING SOIL SAMPLES

Looking US @ test site. Excellent planted grass coverage.

7 MONTHS AFTER TRENCHING-LITTLE BOGUE PIX DERRICK 7-3-2009

Looking US @ the test site. All planted poles died except for one willow!!!


Close-up of the one willow that lived.


Looking downhill at one of the monitoring wells.


Ground water & soil sampling protocol from

Dr. Ken Carlson,

Colorado State University.

Tools used to take a soil sample 16 inches below the surface.


Very dry for the top 7 inches or so in each of the 15 soil sample holes


Man’s best friend, Cleophus Speed Elvis Derrick

NITROGEN & PHOSPHORUS REMOVAL FROM GROUNDWATER LITTLE BOGUE, MS. CONSTRUCTED NOVEMBER 2009.

Documents

test trench location

ft long test trench

groundwaterlittle bogue

test sections

2009rs2 test site

project bend

test section shovels

dave derrick