Presentación Algas


Published on

  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Presentación Algas

  2. 2. HOW THE ALGAL TURF SCRUBBER® SYSTEM WORKS ATS™ SURGER AND DISTRIBUTION The ATS™ consists of a suitably processes. sloped substrate, typically plastic Carbon dioxide, nitrogen, geomembrane, overlain with an phosphorus and other elements attachment grid, upon which necessary for metabolic growth are pollutant-laden waters are discharged rapidly removed from the water and an algal turf is cultured. column through biological uptake. Wave surge motion is Removal of these compounds results incorporated into the headwaters of in water quality changes within the the ATS™ to enhance the exchange ATS™, including elevation of pH of metabolites between algal cells concentrations. and the water medium. Pulsed flow Employing a patented is provided via a self-siphoning precipitation process, ATS™ systems surger. offer the benefit of low-cost ATS™ surger and distribution systems provides The algal turf consists of dense chemical precipitation of pollutants. flow at linear hydraulic loading rates of 10 mats of small anatomically simple Through control of operating to20 gal lf -1 min-1 algae less than several centimeters in parameters such as flow rates, micro height. and macro nutrients concentrations As water travels down the and biomass recovery rates, ATS™, pollutants are recovered pollutants such as phosphorus are through both biological and physical precipitated onto the algal cell walls, SIMPLE CONSTRUCTION then recovered along with harvested biomass, thereby further enhancing BIOMASS PROCESSING AREA phosphorus treatment capacity and reducing system treatment costs. BIOMASS RECOVERY EFFLUENT FLUME STATION Physical removal also occurs on the ATS™ through particulate trapping or filtration within the web of algal filaments. ATS™ SURGERS (TYP) Critical to performance of the ATS™ system, cultured algal biomass is routinely harvested. INFLUENT FLUME Routine recovery serves to optimize EFFLUENT pollutant recovery, avoid succession RETURN LINE to macroalgae and macrophytes and PUMP STATION eliminate long-term liabilities associated with on-site storage of SOURCE WATER pollutants typical of conventional treatment wetland systems.
  3. 3. BENEFITS OF THE ALGAL TURF SCRUBBER® SYSTEM LOW TREATMENT COSTS HydroMentia’s Algal Turf nitrogen and phosphorus, ATS™ Scrubber® (ATS™) technology was systems offer treatment for a wide developed by Dr. Walter Adey, variety of toxic compounds including Director of Marine Laboratories at metals and chlorinated compounds. the Smithsonian Institution. Dr. Adey HydroMentia’s proprietary REDUCED LAND REQUIREMENTS developed the ATS™ while biomass management techniques researching low nutrient ecological allow cost-effective and efficient systems at the Smithsonian. recovery and management of the Optimized for nutrient uptake and algal biomass. Recovered biomass pollutant precipitation, the ATS™ can be readily processed into high PROVEN PERFORMANCE can reduce nitrogen and phosphorus quality compost, organic fertilizer or concentrations and loads while livestock feed, and in the future requiring 90% to 99% less land than biofuel. comparable treatment wetland Through recovery and systems. management of the biomass, the REDUCED LONG-TERM LIABILTIIES Due to its small footprint and ATS™ eliminates potential long- simple and cost-effective term liabilities commonly associated construction, the ATS™ offers a with systems that store captured lower-cost alternative for nutrient pollutants. pollution control than either With over two decades of treatment wetlands or chemical research and commercial application, MARKETABLE END PRODUCTS treatment. the ATS™ offers proven and In addition to recovery of excess sustainable treatment performance. A 2.5 acre ATS™ can provide nutrient control for over 10 million gallons per day.
  4. 4. ALGAL TURF SCRUBBER® PHOSPHORUS CONTROL FLEXIBLE DESIGN 1000.00 The Algal Turf Scrubber® can be S154 Second Stage (WHS Pretreatment, ATS-300', Ci=330-50 ppb) EAA-Everglades (ATS-50', Ci=80-30 ppb) designed and constructed to meet a S154 Single Stage (ATS-300', HLR=100 cm/d, Ci=300-80 ppb) wide range of phosphorus control S154 Single Stage (ATS-300', HLR=200 cm/d, Ci=300-80 ppb) objectives. P Areal Removal Rate (g m yr ) 100.00 -1 S154 Single Stage (ATS-300', HLR=450 cm/d, Ci=300-80 ppb) ATS™ units have been applied to -2 surface water runoff, agricultural and municipal effluents with total 10.00 phosphorus concentrations ranging from 80 to 8000 parts per billion (ppb). 1.00 Whether your treatment objective is reducing total phosphorus loads or achieving a specific outflow 0.10 phosphorus concentration, the ATS™ 1.0 10.0 100.0 1000.0 system can be optimized to meet -2 -1 P Loading Rate (g m yr ) your needs. Capable of consistently and reliably reducing phosphorus concentrations to below the most stringent TMDL objectives, the ATS™ is the ideal surface water 1.00 S154 Second Stage (WHS Pretreatment, ATS-300', Ci=330-50 ppb) treatment technology. EAA-Everglades (ATS-50', Ci=80-30 ppb) S154 Single Stage (ATS-300', HLR=100 cm/d, Ci=300-80 ppb) S154 Single Stage (ATS-300', HLR=200 cm/d, Ci=300-80 ppb) DESIGN ADVANCEMENTS S154 Single Stage (ATS-300', HLR=450 cm/d, Ci=300-80 ppb) Recent advancements have TP Out (mg l ) -1 resulted in significant increases in 0.10 areal removal rates even at relatively low inflow phosphorus concentrations. Capable of recovering phosphorus at rates greater than 1,000 lbs/acre-ATS™/ yr, these advancements allow for 0.01 significant reductions in the 0.1 1.0 10.0 100.0 1000.0 -2 -1 treatment facility footprint. The net P Areal Removal Rate (g m yr ) results are both lower capital and operating costs for the ATS™.
  5. 5. ALGAL TURF SCRUBBER® NITROGEN CONTROL 25,000 LOAD VERSUS CONCENTRATION S154 ATS Single Stage Floway - South 2,500 (HLR = 100 cm/day or 365 m/yr) As with phosphorus, the Algal 20,000 S154 ATS Single Stage Floway - North Turf Scrubber® can be designed and N Areal Removal Rate (lbs acre yr ) (HLR = 200 cm/day or 730 m/yr) -1 N Areal Removal Rate (g m yr ) -1 2,000 constructed to meet a wide range of -1 S154 ATS Single Stage Floway - Central (HLR = 450 cm/day or 1642 m/yr)) -2 nitrogen control objectives. 15,000 ATS™ units have been applied to 1,500 surface water runoff, agricultural and 10,000 municipal effluents with total 1,000 nitrogen concentrations ranging from 1 to 18 parts per million (ppm). 5,000 Whether your treatment objective 500 is to reduce your AWT effluent to allow discharges to local source 0 0 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 waters or load reduction to meet the -2 -1 N Loading Rate (g m yr ) new TMDL requirements, the ATS™ Total Nitrogen Inflow Concentrations Range from 1.1 to 2.7 mg/l system can be optimized to meet your needs. LOW-LEVEL TREATMENT 25,000 ATS™ systems are capable of S154 ATS Single Stage Floway - South 2,500 providing consistent, cost-effective (HLR = 100 cm/day or 365 m/yr) 20,000 S154 ATS Single Stage Floway - Central (HLR = 450 cm/day or 1642 m/yr)) nitrogen reduction, even with the N Areal Removal Rate (lbs acre yr ) -1 N Areal Removal Rate (g m yr ) lower nitrogen concentrations often -1 S154 ATS Single Stage Floway - North 2,000 -1 (HLR = 200 cm/day or 730 m/yr) -2 present in surface water runoff. 15,000 Designed to operate at high 1,500 Linear Hydraulic Loading Rates (LHLR), high nitrogen areal removal 10,000 1,000 rates can be achieved for a wide range of point and nonpoint source 5,000 applications, including lake 500 restoration projects. The result is that the ATS™ 0 0 offers the lowest cost treatment 0 500 1,000 1,500 2,000 2,500 3,000 3,500 TNIN (ppb) technology for nitrogen control. Total Nitrogen Inflow Concentrations Range from 1.1 to 2.7 mg/l
  6. 6. TREATMENT FACILITY LAND REQUIREMENTS POLLUTANT AREAL REMOVAL RATES 900 Biological treatment systems including 820.7 treatment wetlands and Managed Aquatic Plant Systems (MAPS) have been 800 repeatedly shown to offer the lowest cost alternatives for nonpoint source pollution control. However, with these systems, land 700 requirements become a critical selection factor, both in terms of overall costs and land availability. For many of today’s 600 applications, sufficient land simply is not P Removal Rate (lbs/acre-yr) available for construction of a treatment wetland system. It is here that ATS™ system benefits 500 provide a distinct advantage over treatment 419.3 wetland systems. Operated at significantly higher hydraulic loading rates, ATS™ 400 systems offer equivalent treatment performance while requiring a fraction of the land area. 300 COST-EFFECTIVE POLLUTANT RECOVERY 223.0 Recent advancement have demonstrated the versatility of the ATS™ system. 200 152.7 Operational data have shown that increases in hydraulic loading rates of over 400%, have resulted in minimal loss in percent 100 removal of priority pollutants. Dependent on project specific 4.9 6.0 10.7 objectives, HydroMentia’s engineers can 0 design an ATS™ system to optimize Constructed Wetlands - Everglades STAs HMI - Single Stage ATS™ - HLR 92 cm/day HMI - Single-Stage ATS™ - HLR 157 cm/day HMI - Single-Stage ATS™ - HLR 368 cm/day Constructed Wetlands - Orlando Easterly Natural Wetlands - WCA-2A HMI - Two-Stage WHS™-ATS™ pollu tan t re moval w hi le achieving designated outflow pollutant concentrations. Comparative phosphorus areal removal rates for ATS™ and treatment wetland systems
  7. 7. COMPARATIVE TREATMENT COSTS LOW COST POLLUTANT CONTROL Pollutant control strategies for point and nonpoint source pollution include a wide variety of approaches including on- site best management practices, chemical treatment, filtration and biological treatment. Selection of the best approach is $62.00 often determined based on treatment costs. Treatment costs are reduced through $70.00 numerous benefits of the Algal Turf Scrubber®, including: • Small footprint $60.00 • Reduced design costs • Fast construction • Simplified operation $50.00 • 5 0 -y r P re s e n t W o rth C o s t ($ /lb P -R e m o v e d ) Marketable by-products Assessing phosphorus and nitrogen $28.68 control options using a 50-yr present worth $40.00 cost shows the clear cost savings that can be achieved when using the ATS™ system. With both lower initial capital costs and $30.00 long-term present worth costs, the ATS™ technology saves money, both short and long-term. $20.00 BY-PRODUCT VALUES Not included in referenced costs are $10.00 the potential revenues generated by the sale of the high quality organic fertilizer/ compost product produced from the ATS™ $0.00 operation. Bulk sales of high-quality Treatment Wetland Algal Turf Scrubber® organic fertilizers can exceed $50/ton. A [1] HydroMentia. April 2005. Single Stage Algal Turf Scrubber Present Worth Cost & By-Product Market typical ATS™ operation produces 50 to Analysis. (TPIN=200 ppb, TPOUT=146ppb, 27.0% Removal, 56,000 AF/yr, Pumping Costs Included) [2] USACE, SFWMD, HDR. October 2003. Lake Okeechobee Watershed Project Draft PIR, Water Quality 100 tons of organic fertilizer per ton of Treatment Ranking (TPIN=261 ppb, TPOUT=100 ppb, 61.6% Removal, 97,500 AF/yr) phosphorus recovered. In the future, biofuel production may offer even greater revenue generation potential.
  8. 8. BIOMASS MANAGEMENT AND PROCESSING EFFICIENT BIOMASS RECOVERY MAPSoil Typical Analysis To reduce operating costs, HydroMentia developed a proprietary Nitrogen (N) 2.0 technique for recovering algal biomass in Phosphorus (P2O5) 1.0 which process water conveys severed Potassium (K2O) 0.5 Sulfur (S) 0.2% biomass to a central harvesting station. Calcium (Ca) 1.5% A four-wheel all terrain vehicle or Magnesium (Mg) 0.25% tractor with attached implement is used to Moisture 40% sever algal biomass from the growing matrix. The severed material is then conveyed via process water to a receiving flume, where it is recovered by an automatic rake at a centralized harvesting station. These design efficiencies allow a End products made from the harvested algae include compost (above), single operator to recover biomass from livestock feed and biofuel (below). approximately one acre of ATS™ in less than one hour. With algal biomass recovery scheduled once every 7 to 14 days, minimal labor is required to maintain the ATS™ at optimal performance. COST- EFFECTIVE PROCESSING Recovered material is conveyed to a bunker or transport trailer, where it is available for further processing. High in nutrient content, algal biomass can be processed into a high-grade organic fertilizer/compost, livestock feed or biofuel. Organic fertilizer produced within ATS™ systems are suitable for a broad range of fertilizer markets. As a livestock feed, processed algae is typically 20 to 30% crude protein, offering a protein-rich high quality feed ingredient for the massive U.S. agricultural market Currently in development are systems for processing the conversion of algal biomass to energy products, including biodiesel and ethanol.
  9. 9. ALGAL TURF SCRUBBER® APPLICATIONS BROAD RANGE OF APPLICATIONS LAKE RESTORATION Serving as an “artificial kidney,” ATS™ offers cost savings for a ATS™ units can be designed to broad range of water treatment recover incoming pollutant loads to applications. meet TMDL mandates while reducing nutrient pollutants stored within lake STORMWATER RUNOFF sediments. 30 MGD Aquaculture Facility located in The net result is a reduction of Nonpoint source applications that Okeechobee, Florida in-lake nutrient concentrations, involve nutrient pollutants are improved water clarity, and enhanced especially well-suited for the ATS™ nutrient discharges. As the lowest- littoral zone communities and with the system’s capacity to treat co s t a l te r n a t i v e s for n u tr i e n t fisheries. large volumes of water contaminated recovery, ATS™ systems are well with relatively low concentrations of suited for agricultural applications. GEOGRAPHIC OPPORTUNITIES pollutants. ATS™ systems can be designed to meet the most stringent Short start-up periods allow the INDUSTRIAL APPLICATIONS of TMDL objectives. ATS™ to operate on a seasonal basis Due to the rapid rate of algae for reduced operational costs, or for WASTE WATER TREATMENT production and recovery within the application in northern climates. ATS™ unit, trace metals present in ATS™ offers an exciting source waters may be incorporated ATS™ APPLICATIONS opportunity for advanced treatment into recovered biomass. Many of of domestic wastewaters. Since these trace metals serve as necessary Stormwater Treatment water is a limited re s o u r c e and valuable micronutrients for algal • Phosphorus throughout the country, secondary or growth. Recovered from the • Nitrogen tertiary treated wastewater can be treatment system and processed as an Tertiary Treatment polished with an ATS™ unit, making organic fertilizer/compost, these • Nutrients the water clean enough to be trace elements become a beneficial discharged to local surface waters. Agricultural resource. This eliminates the need for disposal Applied to industrial wastes, a • CAFO PHYTOREMEDIATION OF METALS via deep well injection and spray • Runoff high-production, high-pH scrubber irrigation. Industrial unit can effectively recover, through algal uptake and precipitation, a wide • Nutrients AGRICULTURAL • Metals variety of organic and inorganic ATS™ serves as an agricultural compounds. Lake Restoration solution to an agricultural problem—
  10. 10. ALGAL TURF SCRUBBER® SYSTEMS FOR POLLUTION CONTROL HYDROMENTIA, INC. Post Office Box 367 Ocala, Florida 34478 352.237.6762 telephone 352.237.0944 facsimile U.S. Patent Nos. 4,333,263 ; 4,966,096 ; 5,097,795 ; 5,715,774 ; 5,778,823 ; 5,851,398 ; 6,572,770