ARIES CHEMICAL INC. 6604 Depot Street, PO Box 519 Beaver Falls, NY 13305 TEL: (315) 346-1489 FAX: (315) 246-1827 www.arieschem.com Aries Equipment Dissolved Air Flotation (DAF) System

Function and Application

Dissolved Air Flotation (DAF) is an effective process used for the separation of suspended solids, oils and greases, and other insoluble impurities from water. The Aries DAF systems use chemical pretreatment and micro air bubbles to separate contaminants from water. Pretreatment of wastewater lowers total suspended solids (TSS), oils and greases, biochemical oxygen demand (BOD), and metal concentrations. Some of the DAF clarified effluent is recirculated and supersaturated with air under high pressure. When this water is released into the skiming tank under atmospheric conditions, micro-bubbles form and carry the suspended solids to the surface for removal. Listed below are a few of the applications in which a DAF system is efficient and cost effective. Aircraft Paint Waste Maintenance Produce Water Algae Removal Pulp and Paper Automotive Industry Mills Bakery Waste Refinery Ballast Water Rendering Seafood Canning Chemical Processing Processing Plants Slaughter House Dairy Industry Tank and Truck Fiber Recovery Cleaning Fly Ash Tanning Latex and Rubber Textiles Industry Pet Foods Meat Packing Pharmaceutical Mining Potato Processing Poultry Processing Aries Equipment Engineers can custom design and manufacture a DAF pretreatment system for your specific application.

Typical Removal Efficiencies Pollutant Removal Efficiencies TSS (total suspended solids) 70% - 98% BOD (biochemical oxygen demand) 40% - 60% Oils & Greases 80% - 95% Metals 70% - 95%

www.arieschem.com Process Description

Dissolved Air Flotation System Operation The chemical pretreatment using pH control, coagulation, and flocculation optimizes the surface properties of the contaminants for micro-bubble adhesion. pH control is utilized to manipulated the influent to the optimum level for flocculation. Coagulation neutralizes the charge on the individual particles, canceling the existing repulsive forces between them. The coagulant is fed into the influent pipe and the pH control chemicals and flocculant are fed into the flocculation section. Flocculation involves the addition of a long-chain polymer, which causes the particles to connect together and form larger flocs**. A variable speed mixer or serpentine influent pvc piping is tailored to enhance mixing of the chemicals. The recycle pressurization method is responsible for adequate loading of air bubbles into the system. High pressure (~100 psi) recirculation system supersaturates the water with air. When this water flows into the wastewater floatation tank micro-bubbles (~30 µm) form. The micro-bubbles adhere to waste particles and cause them to float to the surface where they are removed with a sludge flight system. Sludge Removal

The low maintenance sludge flight mechanism is composed of a Polymeric chain system with the head shaft driven by a Browning mechanical speed reducer with a roller chain and sprockets. Flight constructed of 304SS with chemical and heat resistant wipers drag the float over the beach and into the sludge sump. The weight of the flight system is sufficient to provide a squeezing effect at the beach as the flight carries the float over the beach to the discharge sump. An automatic sludge transfer system with a level control device pumps the sludge from the sludge section into sludge holding tanks.

www.arieschem.com Treatability Study Services

To determine the feasibility of an Aries DAF for your process or application, Aries may provide bench scale jar testing to determine removal efficiencies and floatation characteristics. Selection of a cost effective chemical program can also be provided. Our evaluation of your wastewater samples allows Aries to determine several DAF design variables. Upon testing completion you will be sent a lab report outlining the benefits made possible by adding a DAF to your treatment system.

Standard Equipment Equipment Options

Heavy Duty Construction Utilizing Epoxy Flocculant Tank with Variable Speed Drive Coated Carbon Steel pH Control System Non-corroding Sludge Flights with Serpentine influent/chemical mixing header Programmable On/Off Cycles 304SS or 316SS Construction Pressure Recycle Transfer System Chemical Feed Systems Control Panel with Nema 4 Enclosure Turbidity Monitoring Rapid Mix Section Feed Pumps, Sludge Pumps Sludge Tanks and Dewatering Presses Complete System Design and Fabrication Capabilities Turnkey Installations

www.arieschem.com FLAT BOTTOM DAF (NO FLOC TANK) Separation Flow Overall Dims. Pipe Diameters (inches) Liquid Wet Model Area Rate* Length** Width Height Influent Effluent Sludge Dry Weight Weight Weight DAF-8 8 20 9.3 2.7 5.0 4 4 1 1,890 3,096 4,986 DAF-12 12 30 10.1 3.2 5.0 4 4 1.25 2,098 4,283 6,381 DAF-18 18 45 11.3 3.7 5.9 6 6 1.25 2,630 7,487 10,117 DAF-26 26 65 12.8 4.2 5.9 6 6 1.5 3,204 10,050 13,254 DAF-35 35 88 14.1 4.7 5.9 6 6 1.5 3,526 12,873 16,399 DAF-42 42 105 15.8 4.7 5.9 6 6 1.5 3,807 14,712 18,519 DAF-50 50 125 15.3 5.7 5.9 8 8 2 4,099 15,960 20,059 DAF-60 60 150 15.3 6.7 5.9 8 8 2 4,604 21,280 25,884 DAF-70 70 175 17.0 6.7 5.9 8 8 2 4,836 23,912 28,748 DAF-80 80 200 17.6 7.2 5.9 8 8 2 5,351 26,997 32,348 DAF-90 90 225 18.2 7.7 5.9 8 8 2 5,609 30,086 35,695 DAF-100 100 250 18.7 8.2 5.9 8 8 2 5,858 33,161 39,019 DAF-120 120 300 21.3 8.2 5.9 8 8 2 6,509 38,421 44,930 DAF-140 140 350 23.4 8.4 5.9 8 8 2 6,917 43,896 50,813 DAF-160 160 400 26.0 8.4 5.9 10 12 2 7,310 49,169 56,479 DAF-180 180 450 28.6 8.4 5.9 10 12 2.5 7,951 54,422 62,373 DAF-200 200 500 28.9 9.2 6.9 10 12 2.5 9,102 74,730 83,832 DAF-250 250 625 34.7 9.2 6.9 10 12 2.5 10,116 90,987 101,103 DAF-300 300 750 35.3 10.7 6.9 10 12 2.5 11,254 108,962 120,216 DAF-350 350 875 40.3 10.7 6.9 10 12 2.5 12,172 125,225 137,397 DAF-400 400 1,000 42.4 11.5 9.4 10 12 2.5 15,673 210,875 226,548 DAF-450 450 1,125 47.0 11.5 9.4 10 12 2.5 17,225 234,959 252,184 *Flow rating may vary according to TSS loading and nature of solids. **Optional floc tank will add aprox. 20% length . Dimensions will be larger with polypropylene construction. V-BOTTOM DAF (NO FLOC TANK) Separation Flow Overall Dims. Pipe Diameters (inches) Dry Liquid Wet Model Area Rate* Length** Width Height Influent Effluent Sludge Weight Weight Weight DAF-8 8 20 9.3 2.7 6.5 4 4 1 2,515 4,282 6,797 DAF-12 12 30 10.1 3.2 6.5 4 4 1.25 2,699 5,570 8,269 DAF-18 18 45 11.3 3.7 7.4 6 6 1.25 3,202 8,927 12,129 DAF-26 26 65 12.8 4.2 7.4 6 6 1.5 3,988 11,671 15,659 DAF-35 35 88 14.1 4.7 7.9 6 6 1.5 4,373 18,598 22,971 DAF-42 42 105 15.8 4.7 7.9 6 6 1.5 4,706 21,148 25,854 DAF-50 50 125 15.3 5.7 7.9 8 8 2 5,411 22,193 27,604 DAF-60 60 150 15.3 6.7 7.9 8 8 2 5,766 27,512 33,278 DAF-70 70 175 17.0 6.7 7.9 8 8 2 6,005 30,824 36,829 DAF-80 80 200 17.6 7.2 7.9 8 8 2 6,714 34,170 40,884 DAF-90 90 225 18.2 7.7 8.4 8 8 2 6,940 41,641 48,581 DAF-100 100 250 18.7 8.2 8.4 8 8 2 7,127 45,015 52,142 DAF-120 120 300 21.3 8.2 8.4 8 8 2 8,297 51,972 60,269 DAF-140 140 350 23.4 8.4 8.4 8 8 2 8,679 58,756 67,435 DAF-160 160 400 26.0 8.4 8.4 10 12 2 9,083 65,674 74,757 DAF-180 180 450 28.6 8.4 8.4 10 12 2.5 9,987 72,566 82,553 DAF-200 200 500 28.9 9.2 9.9 10 12 2.5 11,025 109,169 120,194 DAF-250 250 625 34.7 9.2 9.9 10 12 2.5 12,032 132,442 144,474 DAF-300 300 750 35.3 10.7 9.9 10 12 2.5 13,940 151,122 165,062 DAF-350 350 875 40.3 10.7 9.9 10 12 2.5 14,922 173,351 188,273 DAF-400 400 1,000 42.4 11.5 12.4 10 12 2.5 18,212 261,436 279,648 DAF-450 450 1,125 47.0 11.5 12.4 10 12 2.5 20,294 291,044 311,338 *Flow rating may vary according to TSS loading and nature of solids. **Optional floc tank will add aprox. 20% length. Dimensions will be larger with polypropylene constuction.