puralytics® activated tio2 nanotechnology (sunlight-only) for photocatalytics treatment of polluted...

17
1 Mark Owen, CEO Beaverton, OR, USA [email protected] +1 503 616-2582 www.puralytics.com 5 Star GIIRS Rating from B Labs

Upload: john-deneen

Post on 20-Jul-2015

39 views

Category:

Documents


0 download

TRANSCRIPT

1

Mark Owen, CEO Beaverton, OR, USA

[email protected]

+1 503 616-2582 www.puralytics.com

5 Star GIIRS Rating from B Labs

16/01/2014 2

Pump and Treat:

Solar Catalyst Passive Treatment:

Beaverton, OR, USA, 2007 startup. Light-activated (LED or Solar) nanotechnology for water purification

Green: Water and electricity reduced

Lean: Low water treatment cost

Mean: Destroys “emerging” contaminants

Shield 500 – world’s first LED

water purification

system

SolarBag – sunlight activated personal water purifier

LilyPad – sunlight activated water catchment treatment

LEDs or Sunlight excite a nanotechnology coated mesh

which: • Kills pathogens • Destroys chemicals • Adsorbs heavy metals

• 5 light activated processes

1 Patent granted, 4 Patent Apps Filed, 4 Research Grants received

0.0 0.2 0.4 0.6 0.8 1.0

Heavy Metals (As/Hg/Cr/Se)

Pathogens

PyriproxyfenPrometonMalathion

MCPAMecoprop

PropyzamideQuinmerac

CarbetamideDiuron

CotinineMeth

Caffeine

PetrochemsVOCs

Pur-Blue (Standard)

Relative Reduction Rates

Pest

icid

es

Dru

gs

LED Powered Shield technology used in study

Conclusions to be included in October 2013 report

Capability demonstrated: the highest pesticide reduction of all technologies evaluated in the study.

6

LilyPad Stormwater Project Puralytics and Oregon State

University are studying LilyPad performance for water catchment applications relevant to storm water

Schedule Phase 1 Summer 2013 Quantify performance model of

LilyPad L Validate on trace contaminants

Phase 2 Fall 2014 Field trial monitoring roadside

storm water runoff treatment Work to be completed by the end

of the year 7

Build on previous Puralytics study

Analyze effects of natural convection/ pond dynamics

Test on storm water contaminants Pesticides, Petrochemicals, Pharmaceuticals Micro-Organisms, etc.

9

Compound Classification

Acetaminophen, Gemfibrozil, Carbamazepine Pharmaceuticals

Pyrene, Phenanthrene, Chrysene

Polycyclic Aromatic Hydrocarbons (PAHs)

Hexane, Benzene, Toluene, Xylenes, Naphthalene

Total Petroleum Hydrocarbons (TPHs)

TBD PCBs

Malathion, Pyriproxyfen, Metaldehyde Pesticides

Prometon Herbicides

Carbendazim, Diethofencarb Fungicides

10

𝑑𝑑𝑑𝑑

= −𝑓 𝐼 ∙ 𝑘 ∙ 𝑑 ∙𝑦𝑦𝑉

Variable Description C Contaminant concentration

k Rate constant

f ( I ) Function of UVA intensity I

y Fractional surface coverage

A Surface area

V Volume

11

0%

20%

40%

60%

80%

100%

0 5 10 15 20 25 30 35

Perc

ent R

emai

nder

[C

/C0*

100%

]

Time [hrs]

LilyPad - Storm Water Contaminant Performance

CaffeineDiuronCotinineMeth

12

0%

20%

40%

60%

80%

100%

0 5 10 15 20 25 30 35

Perc

ent R

emai

nder

[C

/C0*

100%

]

Time [hrs]

LilyPad - Storm Water Contaminant Performance Scaling

CaffeineDiuronCotinineMeth

13

Ponds here

Rainwater Collection

Fertilizers Pesticides

Shield Onsite Treatment

LilyPad Sunlight

Treatment in Runoff

$500 /m2 for LilyPad Seasonally refreshed,

regeneration possible 1m2 for each 1LRV

contaminant reduction in 1m3 per 1 day

Low impact on plants and wildlife

No electricity, facilities, or chemicals required

15

16

Mark Owen, CEO Beaverton, OR, USA

[email protected]

+1 503 616-2582 www.puralytics.com

18 Many contaminants are reduced by two or more processes

Contaminant Photocatalytic Oxidation

Photocatalytic Reduction Photolysis Photo

AdsorptionPhoto

DisinfectionDichromate 1 1 1Arsenic 1 1Caffeine 1 1Cerium 1 1Cobalt 1 1Copper 1 1Cryptosporidium 1 1Estradiol 1 1Giardia lamblia 1 1Heterotrophic plate count 1 1Lead 1 1Lead dioxide 1 1Legionella 1 1Legionella pneumophila 1 1Manganese Oxide 1 1Mercury (inorganic) 1 1Permanganate 1 1Saccharomyces cerevisiae 1 1Silver 1 1Staphylococcus aureus 1 1Streptococcus faecalis 1 1Streptococcus sobrinus 1 1Styrene 1 1Sulfamethoxazole 1 1Total Coliforms (including fecal coliform and E. Coli) 1 1Turbidity 1 1Viruses (enteric) 1 11,1,1,2-Tetrachloroethane 11,1,1,2-Trichloroethane 1

Puralytics Active Purification Processes