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US and International Patents |
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Over 300 Municipal, Industrial, and Agricultural
Installations over the last eight years |
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Endorsed by USEPA |
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Approved by USDA and NCSU |
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On-going Research & Development for
Technologies focused on the Wastewater Treatment Market |
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Presented at Several International and National
Conferences |
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Agriculture and Biosolids in 2000 and 2001 |
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Automatic Pour Sequence Initiated |
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Polymer is Activated / Influent Waste stream
prepared |
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Activated Polymer and Influent Waste products
recirculated in RapidFloc Mixer causing Liquid-Solid Separation |
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Combined Waste Streams flow to Filter Area |
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Liquid Effluent flows rapidly through filter and
biosolids are trapped above filter |
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Liquid effluent is ready for desired
post-treatment |
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Biosolids “Quick-Dry” for duration of drying
cycle |
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Biosolids removed off-filter for desired
post-treatment |
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AquaTrac Retrieval Equipment prepares filter for
next pour |
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Nutrient Control |
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Odor Elimination |
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Pathogen Containment |
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Environmental Control |
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70%+ Biosolid Dryness in 7 days or less. |
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Year 2000 Annual Average All Installations: |
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45% Biosolids Dryness All Climates |
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Biosolid Containment of |
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95%+
Total Suspended Solids |
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95%+
Organic Nitrogen and Organic Phosphorus |
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95%+
Volatile Solids |
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80%+
Carbon Oxygen Demand |
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90%+
Any Heavy Metal Content |
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And Pathogen Majority up to
99% |
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Highest Throughput |
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Designs for any hydraulic condition |
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Highest Capacity |
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Limited only by space available |
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Highest Efficiency |
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40% to 60% Dry Biosolids in 7 days |
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Lowest Capital Cost |
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Lowest Operational Cost |
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Manpower |
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Chemicals |
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Lowest Maintenance Cost |
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Elimination of Odor |
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Preparation of Biosolid for Class A |
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McAllen Texas Wastewater Treatment Facilities |
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McAllen is 2nd fasted growing
community in the United States |
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Plant must keep up with population growth |
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4 major Deskins installation upgrades |
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Oldest Deskins Installation – 5 years |
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Main Reasons for continuing to use Deskins QDFP |
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$6 to $8 per dry biosolid ton produced |
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Class A Biosolid Results |
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Lower Man Hour Requirements |
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Other reasons mentioned: |
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Simplicity, Cost Effectiveness, Odor
Elimination, Speed of Reaction, Reliability, Flexibility, Low Maintenance,
Low Capital Cost, Most Efficient Process, Highest Capacity and Throughput
compared to prior processes. |
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Liquid-Solid Separation, Filtration, Drying and
Disposal of Waste Solids through Programmable Process Automation using
Simple, Effective, Low-Cost Technology? |
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Larger Municipal Plants use Mechanical
Dewatering |
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Smaller Plants use Sand Drying Beds |
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Agricultural Units use single or multi-cell
lagoons |
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Rapid exiting of water through the filter is
important for high solids concentration! |
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“90% of most waste treatment problems can be
contributed to inadequate biosolids processing” |
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No Odor
Control |
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No
Immediate Liquid-Solid Separation |
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Difficult Cleaning of Sediment |
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No
Predictable Control of Nutrient Value |
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How Can Deskins “Quick-Dry” Filtration Process
achieve 45% Biosolid Dryness as its Annual Average? |
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Simple, Effective, Low-Cost and Innovative
“Filtration” Dewatering System |
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By |
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Greg Fabisiak, South Adams County Water and
Sanitation District,
Derald Meineke and Dave Oerke, Rothberg, Tamburini & Winsor |
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“It has been estimated that solids handling
systems may account for as much as 25-65% of the total capital and annual
costs of a wastewater treatment plant.” |
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Need for good inline liquid-solid separation |
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Inadequate drainage |
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Runners waste 50% of drainage space |
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Sand becomes compacted |
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Manual Solids removal is a time-consuming and
difficult job |
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Inline Polymer Activation |
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Inline Flocculation |
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Substratum Stabilization |
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Mechanical Retrieving |
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Quick-Dry Panels transfer weight from cell to cell, preventing
slippage during the retrieval cycle |
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Prevents
compaction of substratum |
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AquaTrac 100 |
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AquaTrac 200 |
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AquaTrac 300 |
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AquaTrac Dumper |
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Distributing Solids evenly over the filter is EXTREMELY
Important!! |
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Correct
Pump Size |
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Adequate
Distribution Points |
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Filter
Pre-saturation |
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Mechanical Retrieval |
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Sand Loss is Minimal |
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Minimal sand penetration in filter |
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Filter usually requires 1 ˝ inches of new sand
per year |
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Replacement Sand Quality
Must be Maintained! |
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Length
x Width x
12 inch liquid depth |
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dewaters to 1 ˝ inches to 2 ˝ inches solids
depth in 2 to 4 hours |
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Produces:
2 pounds per square foot |
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Typical installation by plant personnel |
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“The process exceeded our expectations. ” Frank
Humenik, |
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Mark Rice holding resultant
sample for visitors from
National Sanitation
Foundation with USEPA
Environmental Technology
Verification Program |
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After Completion of the Pilot Study, the USDA
and NCSU continue to use the Deskins “Quick-Dry” Filtration Process™ as a
proven method for liquid-solid separation, filtration and biosolids drying. |
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USDA and NCSU consider the
technology the “best first step”
they know for Concentrated
Animal Feeding Operation
Nutrient Management. |
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Offensive |
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Odor |
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Elimination! |
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Water from biosolids |
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Thaws the filter |
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Dewaters |
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Freezes |
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Removable in 48 hours! |
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Sludge Type: |
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Iron Hydroxides with 5% slightly anionic high
molecular weight polymer |
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Sludge Concentration: |
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8% Solids |
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For |
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More Extreme Cold Temperature |
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or |
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Hotter Social Environments |
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The Entire Process Can be Operated Indoors |
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No Rainfall Permitted to go through filter |
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Issues surrounding perceived odor offense |
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Will not slow drying process with proper
ventilation |
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http://www.deskinsprocesstech.com |
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Email: dave@deskinsinternational.com |
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Call: |
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(765) 724-7878 |
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Notes