Bacteria Lab Test Results One

KDF Lab Test Results from Biological Research Solutions
 

Lab Test Results Show How KDF Process Media Work in Water Treatment Processing for Bacteria Removal

KDF Lab Test Results from Biological Research Solutions

Laboratory Service Performed:

Analysis of the mode of action of KDF versus Pseudomonas fluorescens.

patented_redox_water_filter_media

Table 1- Testing Protocol
Sample # Bacterial Injector KDF Column Description of Purpose
1
Off
Off
Control:
Measure survival of Ps. fluorescens in water that has passed through the system KDF off by inoculating after collection.
2
Off
On
KDF Elution:
Measure survival in water that has passed through KDF by inoculating after collection.
3
On
Off
Control:
Measure survival of Ps. fluorescens that have been injected into the system with KDF off.
4
On
On
KDF Contact:
Measure survival of Ps. fluorescens that have come in direct contact with KDF.

All water used for testing was deionized and injected with AOAC synthetic hard water to a final concentration of 100 ppm and a pH 7.0 +/-.2

Following collection, the samples were surface plated on Plate Count Agar within 2 to 3 minutes of collection and again after incubation at room temperature for 3 hours.

The same inoculums of Pseudomonas fluorescens was used for injection in to Samples 3 and 4 or for addition to Samples 1 and 2 (added after collection of the water).
Table 2- KDF Testing Results.
Experiment # (Date) Sample #* Time 0 Time 3 hours

I: 7-18-90
1
900
740
?
2
810
650
?
3
440
570
?
4
4
0
II: 7-19-00
 1
 1800
1600
?
2
 1800
30
? 
3
2100
1900
?
4
350
33
III: 7-21-90
1
580
460
?
2
580
31
?
3
650
330
?
4
390
0
IV: 7-23-90
1
740
630
?
2
740
180
?
3
770
470
?
4
360
42
Average:
1
1000
830
?
2
30
220
?
3
990
820
?
4
280
19

* Sample numbers are described in Table 1.

Table 3 - Chlorine removal by KDF.
Pump Rate
Pulse per Minute		 Calculated ppm
Free Chlorine		 Measured ppm
(KDF Off)		 Measured ppm
KDF (On)

10
1.8
1.6
Less than .1
40
7.4
6.0
0.5
80
14.0
14.0
1.5
120
21.0
20.0
2.5
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This Reduction Oxidation Media is Tested and Certified by NSF International against NSF/ANSI Standard 42 for material requirements only.

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This Reduction Oxidation Media is Tested and Certified by NSF International against NSF/ANSI Standard 61 for material requirements only.

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