Using patented continuous deflective separation technology, the CDS® system from CONTECH Stormwater Solutions effectively screens, separates and traps debris, sediment, and oil from stormwater runoff.
Stormwater Treatment System
Using patented continuous deflective separation technology, the CDS® system from CONTECH Stormwater Solutions effectively screens, separates and traps debris, sediment, and oil from stormwater runoff. The indirect screening capability of the system allows for 100% removal of floatables and neutrally buoyant material, without blinding. It is available in off-line, in-line, and grate inlet configurations. The design of the CDS in-line manhole provides more ways to receive stormwater in a single treatment unit. Its forebay arc of 170º allows it to receive a single pipe or multiple inlet pipes anywhere along the semicircle. If needed, the system can perform as a catch basin or drop inlet and receive flow from the rest of the drainage collection system — eliminating the need for additional structures. An oil baffle skirt surrounding the non-blocking screening process is integral to the wide arc inlet design and traps oil and grease. It separates previously captured oil and grease from high bypass flows, preventing scour and possible re-entrainment.
CONTECH Stormwater Solutions
The patented QuickView pipeline zoom camera from EnviroSight now allows municipalities, contractors and engineers to inspect a broader range of underground infrastructure, and to capture and display video at higher resolution. An extended targeting leg allows the camera to inspect drop lines with precision and stability. This carbon-fiber attachment lets an operator vary camera height up to five feet. The extended targeting leg can be ordered with a new system, or as a retrofit to existing systems. Pole extensions are also available, allowing the system to inspect manholes as deep as 48 feet. A 6-foot carbon fiber extension is available, as is a segmented fiberglass extension that adds 6 to 18 feet of depth. These extensions are available for all QuickViews that have a telescoping carbon-fiber pole. In addition, the targeting leg has been repositioned to be coplanar with the camera's view axis, enabling better positioning in small lines and access areas, and rendering the system less prone to slipping on uneven surfaces.
Yelomine pipe from CertainTeed is made from a unique, modified PVC formulation with increased sunlight- and impact- resistance, making it suitable for use in aboveground applications where conventional white pipe may not offer the required long-term performance. Its spline-lock joining system reliably holds the pipe together when pressurized. Besides irrigation, Yelomine is also ideal for a variety of other critical applications, including water and sewer bypass lines, mining, and trenchless construction projects.
Valley Forge, PA
Hybrid Stormwater Treatment System
The Modular Wetland System - Linear (MWS-Linear) replicates natural processes to remove a variety of contaminants from sediments to heavy metals to harmful nutrients like nitrogen and phosphorous. While most systems use a single treatment method, the MWSLinear incorporates capture, screening, hydrodynamic separation, filtration, and bioretention into a single system. Completely modular, it can either replace standard stormwater inlets or function perfectly in an on-line or off-line design. Suitable for green design and sustainable projects.
Modular Wetland Systems Inc.
Blue Water Technologies has expanded its Blue PRO® wastewater nutrient removal product line with Blue NITE™ for denitrification. The denitrification process is accomplished in a Centra-flo™ continuous backwash, upflow sand filter by growing fixed-film, heterotrophic, denitrifying bacteria within the filter. Water is dosed with a carbon source as it enters the Centra-flo filter. The water passes upward through the filter media, where nitrate is converted to atmospheric nitrogen (N2) by the bacteria. A portion of filtrate passes through a sand washer, carrying contaminants and excess bacteria with it. The washer separates solids, which are directed to a reject line. The clean sand then falls by gravity back to the media bed. Blue NITE may be run concurrently with Blue Water's Blue PRO process for 90% or greater removal of phosphorus, achieving total nutrient reduction in the same vessel.
Blue Water Technologies Inc.
Advanced Drainage Systems Inc. (ADS) has added N-12 HP (High Performance) pipe to its current family of N-12 pipe products. N-12 HP features highly engineered triple-wall construction. Its smooth exterior wall design supported by a corrugated structural core provides for improved stiffness and greater beam strength to minimize deflection and shed point load while also providing enhanced jobsite durability and easier backfill installation. N-12 HP's smooth interior wall incorporates a dual banded, extended bell and a spigot with two gaskets for added safety. The product will be available in diameters up to 60" (1,500 mm). Its standard length will be 20" (6.096 m), with shorter lengths available for trench box and deep burial installations. N-12 HP will be commercially available through the company's nationwide distribution network in early 2009.
Advanced Drainage Systems Inc. (ADS)
Underwriters Laboratories (UL) has published a position paper on its capabilities for monitoring public water systems for emerging contaminates, such as pharmaceuticals. To download the full position paper, which details UL’s capabilities in this sector, visit www.ul.com/water/waterlab/contaminants.html. UL has been testing for emerging contaminants for nearly 10 years. It is one of the few laboratories across the nation with the capabilities to test for a broad range of contaminants, using fewer methods therefore streamlining the testing process and reducing the cost.
Hydrotech Limited, in association with Weston Solutions Inc., offers the Jet Streamer™, a patented jet propulsion, micro-bubble aerator. The Jet Streamer works efficiently and inexpensively by releasing billions of 10- to 20-micron- sized bubbles, which provide exponentially greater bubble surface area, and therefore oxygen transfer. Depending on water depth and basin shape, the system entrains 20 to 100 times more water than a typical aerator and mixes it with oxygen- enriched water, air and (optionally) ozone to significantly reduce pollutants, including nutrients, bacteria, low dissolved oxygen and algae. It uses as little as 5% of the electricity consumed by typical aeration systems, making it both economical and environmentally friendly. The aerator can also operate on solar power. The system is extensively used in fresh, salt and brackish bodies of water of all sizes, and can operate from a floating barge or be submerged with land-based connections. Operation is quiet and with no moving parts underwater.
Silt Fence Installer
The Ditch Witch® organization has released a silt fence installer that utilizes a vibratory plow — not a static plow — to install the fence. The vibratory plowing method has been used for decades to bury cable and small-diameter pipe with minimal turf disturbance and no backfill. Using this method to install silt fence results in faster installation and a fence with longer-lasting integrity. Also, the mini skid steers, excavator- tool carriers, and Zahn™ units that drive the installer are compact and more maneuverable around jobsites. The installer can be powered by several different Ditch Witch machines: the heavyduty SK650 mini skid steer, a tracked unit; the versatile XT850 MegaTool, also on tracks; or the four-wheel- rive Zahn R230 and R300 power utility units with hydraulic, articulated steering.
Miller-Leaman Inc. offers its automatic, self-cleaning Turbo-Disc Filter systems, suitable for applications including reuse water for irrigation and industrial applications, pre-filtration for membranes, stormwater, cooling tower water, well water, surface water, and other environmental applications. Available in multiple micron sizes, the lightweight, three-dimensional polypropylene disc media uses a minimal amount of backwash water (approximately 10 gallons of water per pod). Air-assist models are also available. The filters come complete with a pump on a stainless steel skid. An onboard controller monitors the differential pressure across the system, triggering an automatic backwash when dirty without interrupting the downstream flow. Filter lid enclosures have a stainless steel quick-release band clamp assembly, enabling easy access to the disc cartridge for maintenance. Turnkey systems can be custom engineered, complete with a multitude of other filtration and water treatment technologies.
Daytona Beach, FL
Guide to "Green" Careers
WetFeet's Insider Guide to Green Careers is the ultimate guide for job seekers hoping to enter the green sector of the economy, the rapidly growing area at the nexus of business and sustainability. Green jobs are popping up in virtually all industries and all types of organizations, from nonprofits to Fortune 1000 companies and everything in between. Green Careers delivers the lowdown on how the concept of "green" is reshaping the business world and creating a wealth of job opportunities. Highlights of the guide include: "Green" people profiles; degree requirements; hot topics; and more.
WetFeet Inc., a Universum company
Field Assessment User Manuals
In an effort to ensure that every community has the methods to make comprehensive assessments of their local watershed, the Center for Watershed Protection has made Manuals 10 and 11 of the Urban Subwatershed Restoration Manual series available permanently for free download. Manual 10 outlines the Unified Stream Assessment, a rapid technique to locate and evaluate problems and restoration opportunities within the urban stream corridor. Manual 11, a User's Guide for Unified Subwatershed and Site Reconnaissance, provides rapid surveys to help identify upland restoration projects and source control to consider when devising subwatershed restoration plans. Both manuals include field sheets as Word files and Manual 10 offers an Access database. These Manuals, released in 2005, now join Manuals 1, 2, 3, 4, and 8 in the Manual Series now available for free download.
Center for Watershed Protection
Ellicott City, MD
The Up-Flo" Filter system from Hydro International uses three stages of treatment — settling, screening and filtration — to improve discharge quality in a small footprint, efficiently and costeffectively. The patented system ensures high flow rates with low head loss, easy filter media replacement and the opportunity to tailor the filter media type to meet specific pollutant profiles. The company also offers the Downstream Defender®, an advanced hydrodynamic separator designed to remove sediment, floatables and associated pollutants from stormwater. The system provides greater pollutant removal and retention in a smaller footprint compared to conventional gravity or simple swirl-type devices. Flow modifying components create a stable hydrodynamic flow regime that is ideal for solids/liquid separation and preventing washouts over a wide range of flow rates.
Condensed Flow-Control Catalog
Red Valve's 28-page condensed catalog includes all of the latest information on its quality pinch valves, Tideflex®Check Valves, non-clogging airdiffusers, Redflex® Expansion Joints and other flow control products. Productdimensions and applications are featured.
Red Valve Company Inc.
Stormwater Storage Modules
Brentwood's StormTank" Stormwater Storage Modules are a high-void, strong, affordable option for subsurface stormwater detention or infiltration. The entire StormTank System is built on-site from 18" wide x 36" long top/bottom panels and side panels made of rugged, lightweight polypropylene and 2 3/8" diameter PVC columns (18-36" lengths). To minimize shipping costs, components are delivered unassembled. No special equipment, tools, or bonding agents are required for assembly. The system is load-tested for use under parking lots and athletic fields with an HS-25 rating.
Brentwood Industries Inc.
Flowplug inflation plugs from Stormwaterworks.com are used for containment, flow control and pipe maintenance operations. The lowpressure, flow-through plugs allow the user to control the outflow. Plugs are made from materials that resist harsh chemicals including those found in petrochemicals. The compact size allows plugs to easily fit in confined spaces such as catch basin sumps. The plugs are suitable for use when clearing sediment from storm drain lines or for hazmat containment/remediation operations. Quick connect ports allow for easy hose hook-up. A set of 4 plugs and interchangeable hardware accommodates pipes sized 12"- 48". Each set comes with two ball valve assemblies, strainer, 90° ell, and air inflation/deflation hose. Plugs and hardware store in a compact hard case for easy transport.
Ergonomically designed, lightweight, high flow-through Envi ro-Composite Grates" have been developed by Environmental Composites Inc. to satisfy the need for economical, strong, long-life, corrosion resistant grating for non-traffic stormwater control structures. Standard sizes are available as well as the ability to produce sizes for special areas. Standard control structure grates can be shipped via UPS any where in the world.
Environmental Composites Inc. (ECI)
Curved Bill Check Valve
The Curved Bill Tideflex® TF-1 Check Valve is designed to enhance sealing, especially in low-lying areas with little backpressure. The valve is constructed entirely of rubber, making it virtually immune to rust, corrosion and weathering. Its curved bill seals without backpressure, allowing for a tighter seal that eliminates gapping issues. The flexible bill also seals around entrapped debris. The headloss of the valve remains exceptionally low. The TF-1 also has a strong spring steel spine, enabling it to handle long-term water weight. The spine is at a greater vertical angle, helping the valve withstand the cantilever effect when water is flowing through it. Applications include highway runoff, flood control CSO/SSO systems, site drainage, stormwater discharge, sewer systems, coastal discharges, odor control or any application requiring backflow prevention. Available in sizes to 96".
Griffin Pump and Equipment Inc. offers a complete line of electric submersible pumps. Whether it is clean water, gray water, or trash-laden effluent, Griffin can provide the right pump for your application. Electric submersible pumps are available for flows as low as a few gallons per minute to several hundred gallons per minute, with head conditions to several hundred feet. Electric submersible pumps are available with several options and configurations. Features include: fully selfpriming; available in 120 volt single-phase or 460 volt 3-phase models; run dry capability on some models; control panels with float switch capability for automatic start/stop conditions; rugged, durable, long-life components; compact designs for easy handling; suited for tight working areas.
Griffin Pump and Equipment Inc.
Bulk Oil Storage System
Trico offers a line of fluid storage solutions for bulk oils. The Spectrum Bulk Oil Storage System replaces 55-gallon drums or any other container with a clean, stackable, and systemized storage and dispensing system. These strong and durable high-density polyethylene tanks are available in 70, 121, 145, and 230 gallons to accommodate any fluid storage requirements. The translucent tanks allow visual monitoring of fluid levels, eliminating product run-outs and downtime. The tanks also have volume markings molded into them in gallons and liters. All storage tanks have unique top outer grooves that interlock with the bottom inner grooves to secure tanks in place when stacked. A unique cut-out area allows the lower tanks of a stacked system to be filled as well as providing a safe and secure area for a desiccant breather to be installed.
Flow Meter Selection Guide
The Hach 2008-2009 Master Catalog now includes a new Flow Meter Selection Guide to assist in determining the ideal open channel flow meter or service. Included are flow meter specifications, application descriptions, product and application photographs, customer testimonials, product features and options, plus ordering information tables and more. The catalog showcases Hach Sigma and Marsh-McBirney flow meters and services. Information is provided on flow meter purchasing, rentals and "Hands Off" Data Delivery Services, which provide flow data direct to a desktop without the need for a flow meter purchase.
The new Quick4® Equalizer® 24 Low Profile (LP) chamber from Infiltrator Systems is designed to provide exceptional strength in trench or bed applications. The chamber's 8" tall, low profile design makes it ideal for shallow placement applications. It features the Contour Swivel Connection" which permits 15-degree turns, left or right. It is perfect for curved or straight systems. The chamber features a simple overlap design and a universal flat construction that makes it easy to install on either end of the trench. The end cap easily accommodates up to 4" diameter gravity flow inlet pipes or small diameter pressure distribution pipe.
Old Saybrook, CT
Underground Stormwater Chambers
Underground chambers from Triton Stormwater Solutions help trap and manage environmentally harmful stormwater and runoff. The chambers are 50% stronger but weigh 46% less per cubic foot than traditional products and are made from a soy-based resin with a service life of more than 50 years. This environmentally friendly and longer-lasting material can also help facilities earn more LEED credits than traditional products.
Triton Stormwater Solutions