Whether onsite or centralized, wastewater treatment systems increasingly are called upon to treat effluent to higher standards with greater efficiency and lower operating costs. As evidenced by the following response to a request from CE News for product information, companies continue to develop and upgrade components, systems, and software to meet the challenge.

IntelliServe from ADS Environmental Services is a web-hosted, real-time event notification system for wet and dry weather. It features "smart alarming," which learns the diurnal flow pattern of each metering site and issues flow loss and depth alarms for blockages and overflows in wastewater collection systems. IntelliServe automatically notifies operators of unusual flow conditions and provides trending tools. Data sharing between system owners and consultants is simplified through the web-hosted system. IntelliServe also features automated data collection, trend analysis, rain intensity alarms, real-time capacity information, FOG management, and management reports. IntelliServe development plans include integration of ADS flow data and real-time alarming with SCADA systems.
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Accusonic Technologies’ Model 787 portable clamp-on transit-time flowmeter can be used for system/plant studies, pump performance testing, existing flowmeter verification, temporary flow measurement, conservation and water-loss studies, collection system inflow and infiltration studies, and leak-detection studies. According to the company, achievable accuracy is +/-1 to 2 percent of actual flowrate for pipe sizes from 0.5 to 200 inches. The 787 is powered by 100-230 VAC 50/60 Hz, 12 VDC or by battery, with a battery run time of 7.5 hours. Memory capacity allows retrieval of site information for downloading the datalogger or recalling a site upon returning to a previously installed location.
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Advanced Drainage Systems says its ARC 36 BioDiffuser plastic leaching chamber combines maximized infiltrative surface area and storage capacity with an improved structural design that allows for easier installation and simplified contouring capabilities while increasing effluent dispersal performance and structural integrity. It can be used for both new onsite wastewater system installations and existing septic system repairs. The ARC 36 features an integral articulating joint, a universal inlet/outlet end cap, inspection vent ports with easy-to-remove knockouts, and a 5-foot length. The ARC 36 can be installed by one person into 3-foot-wide trench or bed applications, and easily transported in a pick-up truck to the jobsite.
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Aqua Aerobic Systems, Inc., introduced the AquaPASS Phased Activated Sludge System to compliment its line of biological processes with a continuous flow system. The AquaPASS System, appropriate for new plant construction or retrofits, supports a wide range of tank geometries, depths, and footprint limitations. Management of the aeration and mixing systems promotes operator-defined reactor environments for nitrogen control. According to the company, integration of patented Phase Separator technology enhances clarifier underflow concentrations and segregates nitrates to optimize performance of the anaerobic treatment stage.
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CULTEC, Inc.’s new Recharger 150 leaching chambers are 8.5 feet long, 18.5 inches high, and 33 inches wide, so fewer units are needed, resulting in decreased labor and cost per foot for a project. The new Recharger 150 incorporates key benefits of the original product line, including a built-in endwall on each chamber for strength throughout the system and patented, overlapping rib connections, which, according to the company, allow easy installation and a stronger connection between chambers. The chambers are constructed of high-density polyethylene for greater chemical resistance than polypropylene. The Recharger 150 has a storage capacity of 2.65 cubic feet per linear foot; each chamber holds approximately 160 gallons.
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Delta Environmental Products offers an Advanced Wastewater Treatment System that allows municipalities, developers, and commercial businesses to use treated effluent for reuse purposes such as irrigation. The membrane bioreactor process with nutrient removal can handle flow from 3,000 gallons per day (gpd) to 500,000 gpd. According to the company, the system requires a small footprint with its modular design and skid-mounted, movable components.
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MIKE URBAN combines DHI’s water modeling capabilities with ESRI’s GIS technology to provide a complete urban water modeling and GIS system. MIKE URBAN includes GIS functionality powered by ESRI’s ArcObjects components; widely-accepted simulation engines for urban drainage, stormwater collection systems, and sanitary collections systems (EPA SWMM5 and DHI’s MOUSE); and productivity tools for importing, entering, processing, analysing, and visualising data. MIKE URBAN uses an ArcGIS GeoDatabase for storing all network and catchment data, allowing users to view and edit data with ArcMap or any compatible application. According to the company, this also ensures effortless data exchange between models.
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Enviroquip, a division of Eimco Water Technologies, partnered with Kubota Corporation to offer a robust and operator-friendly submerged membrane unit (SMU). The company says its multidisciplinary staff can integrate state-of-the-art technologies into custom plants or pre-engineered packages to maximize energy efficiency, optimize process control, and protect membrane equipment. Applying the concept of biohydraulics, Enviroquip has developed design and operational strategies that it says can significantly reduce capital and operating costs while preserving membrane service life.
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Hawk Measurement Systems offers the new ORCA Sonar Series Interface level transmitter featuring industrial scum-cleaning mechanisms. A CDMA modem provides remote technical and diagnostic support and the new ORCA Sonar hardware generates dual analog independent outputs to simultaneously track separate interfaces. Powered by a microprocessor-based transmitter, the ORCA Sonar Series is complemented by menu-driven keypad programming or via COMMS. According to the company, it provides accurate measurements up to 100 feet. A second independent sonar output can be programmed to track either the clarity of the liquid, monitoring the change of suspended solids, or the fluff/floc layer to prevent overflow.
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Hydro International’s Grit King is a hydrodynamic vortex separator for removing grit and sand from wastewater. The units are typically designed to remove 95 percent of particles down to 150 microns at peak design flow with minimal headloss, normally less than 6 inches. The Grit King is available as either freestanding or insitu units and can be installed above or below ground. Flow is introduced tangentially into the side of the Grit King, causing the contents to rotate slowly about the vertical axis. The flow spirals down the perimeter allowing the solids to settle out. The collected grit is discharged by gravity or pumped out from the base of the unit to a grit classifier.
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Infiltrator Systems, Inc., launched Aquaworx, a new division that offers advanced wastewater treatment solutions. Its first product is the Aquaworx Remediator, a septic system remediation technology that renovates failing septic systems with minimal landscape disruption. This system is inserted into an existing septic tank of a malfunctioning system and reverses the drainfield clogging process. It is a permanent solution that, according to the company, requires minimal cost to operate and maintain. The Aquaworx Remediator was formerly marketed as the Pirana Aerobic Bacterial Generator by Piranaco. Aquaworx expects to introduce additional products in the near term to complement Infiltrator’s existing product lines.
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JWC Environmental’s Monster Separation System can now incorporate a vortex grit removal system named Grit Monster, or a bar screen called Catenary Monster. Monster Separation System consists of a fine screen with 2-, 3-, or 6-mm openings for solids removal followed by the Screenings Washer Monster for washing and compacting. The Grit Monster incorporates a vortex swirl concentrator and the choice of an air-lift pump or a specialized grit pump to remove fine particulate such as sand, gravel, coffee grounds, and egg shells. Grit is transferred to a grit classifier for cleaning and dewatering. The Catenary Monster is a mechanically raked bar screen. The screen is custom made for each site and can fit in channels as large as 16 feet wide and almost any depth. Raw screenings are dropped or conveyed into the Screenings Washer Monster for cleaning, compacting, and dewatering.
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Koch Membrane Systems, Inc. (KMS), offers PURON submerged membrane modules for membrane bioreactor (MBR) treatment of municipal and industrial wastewater. According to the company, PURON aeration systems use up to 50 percent less energy than other MBR systems. A nozzle discharges air from the center of each fiber bundle at the base. The combination of rising air bubbles, the resulting hydraulic cross flow, and the seaweed-like movement of the membrane filters comprise an energy-efficient process that dislodges sludge, hair, and other fibrous components from the membranes. Hollow fiber membranes, 2 mm in diameter with a pore size of less than 0.1 micrometer, are bundled in a single header at their lower end. Each hollow fiber membrane filter is sealed at the upper end and allowed to float freely.
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Miller-Leaman, Inc.’s stainless steel Thompson Strainers are designed to remove sand, sediment, and debris from water and wastewater piping systems after the piping has been installed or maintenance has been performed. The strainers use a conical screen element combined with dynamic flow patterns, allowing particles to gravitate downward, away from the screen, into a reservoir at the base of the strainer. The particles are then flushed from the reservoir via the 1.5-inch debris flush port. According to the company, all models operate with less than a 1 psi pressure loss.
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Orenco Systems, Inc., says its AdvanTex Treatment System provides the benefits of packed-bed filter technology in a compact, pre-engineered package. The commercial-sized AX100 textile filter can be used with Orenco’s Effluent Sewer Systems, which provide primary wastewater treatment in a tank at each house. Then an Orenco ProSTEP Pumping Package conveys the effluent to AX100 textile filter pods for secondary treatment, or to other wastewater infrastructure. Solids remain in the interceptor tank, where passive natural processes decrease their volume. According to the company, the AdvanTex textile filter system treats effluent to better than secondary standards. In many communities, the treated effluent is used for subsurface irrigation of common areas.
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Pressure Systems introduced an enhanced KPSI Series 705 submersible level transducer with a claimed static accuracy of +/- 0.25 percent FSO for harsh operating conditions found in wastewater lift station applications. The company says its wide sensing area and flush-mounted, Teflon-coated, elastomeric diaphragm make it ideally suited to highly viscous or slurry environments. The Series 705 is available in custom level ranges from 6 feet to 115 feet water and has analog outputs of 4-20 mA or 0-5 VDC. Standard housing construction is 316 stainless steel, with titanium available as an option. Pressure Systems also offers a two-part lightning protection system with a lifetime warranty.
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Quanics Inc.’s new Bio-COIR System uses a patented natural, renewable media derived from coconut processing to treat wastewater. According to the company, third-party verification has proven that the Bio-COIR System effectively treats wastewater to the highest standards, providing high-quality effluent, protecting drainfields, and providing a long-term eco-friendly solution for all types of wastewater applications. The pre-engineered Bio-COIR system is available in a single fiberglass module capable of treating up to 5,000 gpd; or multiple modules can be grouped together for unlimited flows.
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Severn Trent Services offers the TETRA Denite System, a fixed-film biological denitrification process that also serves as a deep bed filtration system capable of removing suspended solids. The Denite process, which requires one-tenth the space used with suspended growth systems, is used as the final treatment step in the total nitrogen removal process to meet stringent discharge limits of 3 mg/l. With Denite, NO3-N is converted to nitrogen gas and captured within the media bed along with suspended solids and biomass formed from the denitrification reaction. The Denite gravity filter system operates in a downflow mode to maintain suspended solids removal without additional effluent polishing filters.
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Stamford Scientific, Inc. (SSI) introduced an ultra-fine bubble diffuser for the membrane diffuser market. According to the company, its ultra-fine bubble diffuser produces the finest bubbles of any membrane diffuser currently on the market: 0.2 to 0.5 mm in diameter compared with 1-mm-diameter bubbles in a typical panel diffuser and 2- to 4-mm-diameter bubbles in a conventional disc or tube diffuser. SSI says the ultra-fine bubble diffuser is more economical than conventional membrane disc or tube system, has a moderate headloss, and very high oxygen transfer efficiency. The new design concept uses a reinforced, thin Ethylene Proylene Diene Monomer membrane with a low surface energy, fouling-resistant coating that supports a reasonable pressure drop across the membrane.
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The 2007 Isco Environmental Product Guide is a 16-page brochure highlighting Teledyne Isco, Inc.’s full range of water and wastewater samplers, open-channel flow meters, flow data management software, and related products. Isco samplers and flow meters support a broad range of applications, including municipal and industrial wastewater monitoring, stormwater programs, sewer system capacity studies, and monitoring of rivers and streams. New products featured in the 2007 Product Guide include the ADFM Velocity Profiling flow meters, the 4700 Refrigerated Sampler, and data and communication products and services.
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