Presented by. John W. DiTuro. Aqua Dynamic Solutions LLC

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2 New Techniques for Wastewater Pretreatment and insitu bioremediation, Presented by John W. DiTuro Odor Mitigation Aqua Dynamic Solutions LLC Northeast Research Center 211 Collabar Road Crawford NY

3 Asteroids my have not caused the mass extinctions in the past They may have been caused by dead zones.

4 Dead Zones forming around the world

5 Satellite Images from NASA of Dead Zones Around the World

6 LUMCON Researchers Report Current Hypoxic Zone at Over 6600 Square Miles

7 What causes formation of Ocean Dead Zones? Discharge of untreated wastewater into waterways due to improper treatment and the use of Combined Sewer Outfalls Overuse of artificial fertilizers leading to loss of top soil and increased erosion Improper handling of agricultural wastes Improperly treated industrial and residential discharges into waterways Accidental spills

8 How can we possibly reverse this trend and solve these problems? Develop innovative technologies to treat these causes and they have to be : Inexpensive Cost effective Easy to implement Safe to handle and store Environmentally Friendly and Biodegradable

9 ADS has developed solutions to each of these major wastewater problems Municipal and Industrial Wastewater Treatment Residential runoff by proper home septic tank maintenance Agricultural Waste Management Developing country wastewater treatments Surface water treatments (pond, lake etc.) Ground water remediation of metals, chlorinated solvents, PCB s s and perchlorate Accidental Spill treatment

10 The Cause of Odors and BOD 1. There are only two possible sources for the generation of odors: Odorous chemical or biological influents into the stream or the creation of H2S, NH3 or Volatile Fatty Acids while in transit or during detention 2. When ever wastewater is slowed or held the organic load and oxygen demand leads to anaerobic conditions. 3. Sudden increase in flow releases dissolved gases in headspace 4. Anaerobes are responsible for the creation of the sulfides, Ammonia, Volatile Fatty Acids

11 Creation of Acids in Pipes

12 Catastrophic pipe failure due to chronic acid exposure leads to accidental discharge into waterways

13 Advantages in Using Aqua Pucks Produce extremely small bubbles of oxygen Small size insures maximum surface area and longest retention time in solution Rising bubbles degas solution Minimally aerobic conditions prevent gas recreation Faster TSS settling rate due to electronegative repulsion and particle agglomeration Inoculation of sludge blanket and grease cap with the proper microbes Ease of use, storage, and handling

14 Depiction of Interaction of ions in solution with suspended colloid Adjustment of zeta potential is essential for success

15 Graph of Zeta Potential (Electronegative Repulsion vs. van der Waals Attraction)

16 Oxygen bubbles rising to the surface in a wastewater storage tank (400x smaller than compressed Air Bubble)

17 Removes Odors and reduces solids in Sludge tank Wastewater Treatment Pretreat Influent Aids in Clarification

18 500,000 gal. Wastewater Holding tank at Pharmaceutical Company Currently treating 1.7 M GPD with 3 lbs of ADS AquaPucks

19 6/5/06 5/29/06 5/22/06 5/15/06 5/8/06 5/1/06 4/24/ predicted H2S production measured sulfide production Sulfide production (g S/d)

20 6/5/06 5/29/06 5/22/06 5/15/06 5/8/06 5/1/06 4/24/06 600, , , , , ,000 0 predicted H2S conc. measured concs. Pred. sulfide conc. (ug/m3)

21 ADS AquaPuck TM dosage for odor removal in wastewater COD (mg/l): Water T Predicted Aqua-Puck dosing requirement (lb/d) (deg. C) High HRT = 26.3 hr Average HRT = 18.8 hr Low HRT = 14.6 hr

22 Municipal Wastewater Treatment Plant in NJ 98.6% reduction in BOD 49.6% reduction in TSS 45.4% reduction in O&G

23 Example of Internal grease Trap

24 Country club external grease trap discharge into sewer test results

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