Buildings/Structures

Legacy Building Solutions Tension Fabric Buildings

Combining rigid-frame engineering with the proven benefits of tension fabric membranes, Legacy Building Solutions offers fabric structures that are fully customizable. They utilize a durable rigid frame in place of the hollow-tube, open-web truss “hoop” framing traditionally used for fabric structures. The strength of the structural steel frame provides several engineering advantages, most notably the ability to easily customize buildings to the exact width, length and height required. In addition to long clear spans, the buildings have straight sidewalls that maximize the usable square footage inside the structure. The design allows for much more structural flexibility than traditional fabric structures, including the ability to add lean-tos, mezzanines, sidewall doors and more. The structures are also engineered to provide desired overhangs or handle additional loads for items such as sprinklers and conveyors. 877-259-1528; www.legacybuildingsolutions.com

Clarifiers

Lakeside Spiraflo

The Spiraflo clarifier from Lakeside is a peripheral feed clarifier designed for the removal of suspended solids in a primary, secondary or tertiary clarification system. Wastewater enters the outer perimeter of the clarifier tank and is directed along the narrow raceway formed by the skirt and the outer wall. This flow pattern dissipates the wastewater’s hydraulic energy as it flows around the raceway, eventually spiraling down underneath the skirt and into the main settling area. The flow travels inward from the skirt toward the center of the tank, coinciding with the direction of the sludge, and the clarified water rises into the centrally located effluent weir trough. The combination of the spiraling flow pattern and the skirt eliminates all possibility of short-circuiting and provides better utilization of the total tank volume for more effective settling. 630-837-5640; www.lakeside-equipment.com

Smith & Loveless Model R OXIGEST

The Model R OXIGEST treatment system from Smith & Loveless provides stable operation and flexible process options for high-strength wastewater or larger flows up to 5 mgd. The field-erected design encompasses complete aeration, clarification and advanced treatment processes while allowing these units to be individually separated and controlled. The system achieves advanced nutrient removal and produces pristine effluent quality suitable for water reuse and direct or indirect discharge. Its concentric tankage maximizes space efficiency in its footprint, thereby preserving facility land for other key plant operations. Multiple aeration zones can be employed to provide specific activated sludge processes for desired treatment levels, including multistage aeration, complete mixed, plug-flow and nitrification/denitrification. Integral treatment process steps can include grit removal, flow equalization, reaeration, tertiary filtration, chlorination, dechlorination and sludge storage. 800-898-9122; www.smithandloveless.com

Clarifier/Digester/Tank Cleaning

Evoqua Water Technologies (now part of Xylem) Envirex Chain and Scraper Sludge Collector

Envirex Chain and Scraper Sludge Collector systems from Evoqua Water Technologies (now part of Xylem) are available in a wide range of component options designed with a focus on durability, reduced maintenance and longer life for demanding water and wastewater treatment applications. Advanced materials and high-strength components reduce wear to extend service intervals and address elevated load and grit conditions. A broad range of equipment and technical expertise is available to retrofit virtually any metallic or nonmetallic chain and scraper system. Reduced Maintenance or Severe Duty systems are available, along with qualified on-site inspections to assist with component standardization and upgrades to reduce downtime and extend equipment life. 800-466-7873; www.evoqua.com

Coatings and Linings

AGRU America Sure-Grip

Sure-Grip liners from AGRU America are made of HDPE, HDPE-el, PP, PVDF or ECTFE, and serve as a long-term alternative to spray-applied concrete protection products. The liners prevent concrete corrosion and degradation, can substantially extend the lifetime of a structure, and by preventing exfiltration and infiltration, provide direct protection for the environment. The liners have anchoring systems that enable construction in areas of significant backpressure. Unlike spray-applied liners, which have to be reapplied regularly due to cracking or delamination, these liners are long lasting, and are designed to avoid the residuals cost often associated with concrete spray-on liners, which require tank emptying and cleaning every few years for reapplication. 843-546-0600; www.agruamerica.com

Bruce Diamond Novel Vacuum Braze Hard Facing 

Hard facing of treatment plant components like grinders, macerators and choppers requiring wear and corrosion resistance is accomplished by spraying components with hard facing alloys and vacuum brazing from Bruce Diamond. Elements like tungsten, boron, carbon in the alloys form hard particles like tungsten carbide, iron boride in a corrosion-resistant matrix during solidification, imparting wear and corrosion resistance. Unlike the standard hard facing alloys, parts are sprayed with a mixture of braze alloy powder, hard particles and a binder followed by brazing. The advantage of the process is its flexibility of selecting both the braze alloy and hard particles targeting specific applications. 800-346-8802; www.brucediamond.com

Covers/Domes

JDV Equipment Double Membrane Biogas Holder 

The Double Membrane Biogas Holder from JDV Equipment is easy to install, has low up-front capital costs and requires low operating capital. Its design allows for variable biogas storage within the inner membrane at constant pressure during gas production and utilization, while the air-inflated outer membrane provides gas pressure and protection. The outer membrane is constructed of a high-tech, cross-woven fabric that’s coated with PVC and UV-ray protection, proven to endure the weather elements. Sensors monitor the volume of gas present, giving operators full control of optimizing the utilization of biogas to feed generators and/or heating systems. Storing digester biogas can eliminate flaming from the digester, and it can help reduce or completely eliminate the need for electric grid power when generators and/or hot-water boilers are incorporated into the facility design. 973-366-6556; www.jdvequipment.com

Mixers

BioMicrobics LIXOR

LIXOR from BioMicrobics is a nonclogging, venturi-type aeration device that supplies air in a variety of wastewater applications. Equipped with an aboveground, regenerative blower — the system’s only moving part — a continuous large volume of air is piped down to submerged devices. The velocity of air and water increases substantially inside the venturi chamber, creating a vacuum that pulls in surrounding liquid and breaks the incoming air stream into smaller size bubbles. The result is a turbulent plume of water and bubbles that travel up through the water, transferring oxygen for biological activity and creating horizontal and vertical mixing patterns. Each submerged aeration system is designed to achieve reliable aeration and mixing performance efficiencies. Individual or multiple units may be used in many ways to help achieve desired treatment goals. 800-753-3278; www.biomicrobics.com

Ixom Watercare GridBee and SolarBee Floating Wastewater Mixers

GridBee and SolarBee Floating Wastewater Mixers from Ixom Watercare are designed to solve a variety of municipal and industrial wastewater quality problems including high energy costs, EPA discharge permit violations and odor control. Not only can these powerful mixers operate 24/7 to improve overall treatment, they can also supply most of the mixing energy required in any treatment pond, which in turn can reduce the operational hours of the existing aeration/mixing system. Available power options include fully grid, fully solar and combined grid-solar. Applications include wastewater ponds, activated sludge, water reuse/effluent storage ponds and anaerobic ponds. 866-437-8076; www.ixom.com

Vaughan Turbo-S Mixer

The Turbo-S Mixer from Vaughan is a small, powerful propeller mixer that is mounted vertically inside an 18-inch elbow and is capable of mixing a pit with just 2 feet of liquid above the floor. It incorporates an upper cutter above the propeller to stop wrapping and fibrous material binding to protect the mechanical seal. It can be used in dairy manure mixing and in municipal treatment plant anoxic zone mixing and oxidation ditches. It can be quickly implemented in primary influent channels, Bardenpho basin mixing, scum blanket mixing and primary sludge storage mixing. Additionally an optional turntable can allow it to be easily re-aimed in the pit. 888-249-2467; www.chopperpumps.com