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Leonard Girard, Chief Science Officer with Purio, explains just how challenging this septic-tank source of wastewater was. "An October 2008 demonstration of the Purio technology impressed the world with its processed residential wastewater we pumped directly out of a residential sewer manhole. In terms of the Biological Oxygen Demand (BOD) loading, the recent septic tank sample reported on here is over 3.5 times more concentrated than the sewer manhole sample; similarly the Chemical Oxygen Demand (COD) of the septic tank sample was about 3.4 times more concentrated. Total Suspended Solids in the septic tank sample was over 48 times higher than that in the sewer manhole. The Bacteria load of 14 million Total Coliform Bacteria per 100 mL (about a third of a cup) showed the septic sample highly contaminated with pathogens. In our ever-growing quest for excellence, we decided to rise to the challenge of processing the septic tank sample so that we may learn more about the Purio technology's capabilities under the most demanding situations. I must say that the impressive Lab Test results of this exercise not only give us a sense of reward, but they also encourage us to strive even higher."
Girard continues, "Our unit was set to process about 2650 USG (10,000 liters) per day and is equipped with on-board testing monitors which display water quality parameters in real-time along the treatment train during operation. Our monitors showed that the water produced was clear, bacteria-free and sanitary. Purio's plant operators are no strangers to sipping the product water, and on this occasion, several on-lookers joined the 'taster's club' and drank the crystal clear water."
Earl Switenky, Purio Chairman, says, "The Purio Technology has proven an even higher level of capability in managing the world's water crisis, and we are pleased to have been observed in this demonstration by local and international parties representing both commercial and humanitarian interests."
In layman terms the interpretation of the treatment results are as follows: pH refers to the alkalinity (higher pH) or acidity (lower pH) of water, a pH of 7 is considered neutral; the closer the output water is to 7 the less detrimental effect it has on the receiving waters to which it is released. Turbidity refers to the cloudiness of water caused by both dissolved and suspended particles. At 150 NTUs the water is very cloudy and at the 0.4 NTU level it is as clear as tapwater. Suspended Solids refers to the amount of material that is mixed in the water but not dissolved. It causes cloudiness and is related to the turbidity. Biological Oxygen Demand refers to the amount of oxygen that the wastewater would consume if it were released into a pond or stream and the organic compounds contained in it were allowed to decompose there. High numbers mean high oxygen consumption that would kill fish and other aquatic animal life forms. Chemical Oxygen Demand refers to the same phenomenon but is specific to inorganic compounds that consume oxygen when they decompose. Nitrogen and Phosphorus are nutrients which may cause algae blooms that upset the natural balance of a marine biosystem to the detriment of wildlife. E. coli and fecal coliforms are bacteria which cause serious illness or death to humans who ingest them. Most open water discharge standards do not require total sterility, however the Purio system is designed to strive for absolute sterility in order to maximize the safety of our discharge water to animal life and humans.
The lab tested some 56 organic, inorganic and bacteriological analytes and the table below summarizes some of the most critical ones, again proving the powerful effectiveness of the Purio System.
LAB REPORT SUMMARY TABLE: SYNOPSIS
PURIO
Sample date: 03-22-08 RAW SEWAGE FINISHED REDUCTION BY
--------------------- ------------- -------------
pH 8.11 pH units 6.95 pH units 1.16 pH units
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Turbidity 150 NTUs 0.4 NTUs 99.7%
--------------------- ------------- -------------
Total Suspended Solids 629 mg/L < 1 mg/L 99.9%
--------------------- ------------- -------------
Biological Oxygen Demand 332 mg/L 44 mg/L 86.75%
--------------------- ------------- -------------
Chemical Oxygen Demand 940 mg/L 151 mg/L 83.94%
--------------------- ------------- -------------
Ammonia Nitrogen 83 mg/L 2.52 mg/L 96.96%
--------------------- ------------- -------------
Total Kjeldahl Nitrogen 107 mg/L 9.5 mg/L 91.1%
--------------------- ------------- -------------
Total Phosphorus 16.3 mg/L 0.04 mg/L 99.75%
--------------------- ------------- -------------
E. Coli 660,000 Col/100mL < 1 100%
--------------------- ------------- -------------
Fecal Coliform bacteria 980,000 Col/100mL < 1 100%
--------------------- ------------- -------------
Total Coliform bacteria 14,000,000 Col/100 mL < 1 100%
--------------------- ------------- -------------
" < " not detected at level stated above mg/L, Milligrams per liter Col/100mL, Colonies per 100 milliliters NTUs, Nephelometric turbidity units
About Purio Inc. (OTCBB: PURO):
Purio Inc. builds practical solutions to the growing global water crisis. Purio's patented water treatment technology has the potential to satisfy a significant demand for clean water suitable for human consumption, agricultural, industrial, domestic and recreational uses. For more information about Purio, please visit our website at www.puriowatertech.com.
Forward-looking (safe harbor) statement:
Statements in this press release that relate to future results, strategies and events are based on the company's current expectations. All statements other than statements of historical fact are statements that may constitute forward-looking statements, and are subject to risk and uncertainties that could cause actual results to differ materially. See Purio Inc.'s filings with the Securities and Exchange Commission which identify specific factors that may cause actual results or events to differ materially from those described in the forward-looking statements. Purio Inc. assumes no obligation to update the information in this press release.
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