The Challenges Of Combined Heat And Power Generation From Biogas

Driven by tight budgets and competing needs for limited CAPEX funds, wastewater treatment plants are increasingly looking to reduce their operating expenses. Many are now referring to themselves as water resource recovery facilities (WRRFs), reflecting a heightened focus on recovering nutrients, methane, and a host of other properties from their waste flows. The largest boon to date has come from thermal energy, but producing biogas comes with its own set of challenges, including accurate gas flow measurement.

FlexRake® Celebrates 20 Years Of Continuous Operation In Michigan

In 1997, back before text messaging and cell phones, Duperon Corporation installed the FlexRake® FP Full Penetration Coarse Bar Screen into its first wastewater treatment plant at the City of Adrian, Michigan. The same equipment is in operation today, with all of its original components, with the exception of a motor/drive head bearing replacement. 

UV System Saves Energy And Reduces Maintenance

After a 17-year run, a plant’s UV disinfection system was limping toward the finish line. The city needed to identify a replacement UV system that fit into the same channel, offered lower power consumption, and contained a practical ease of maintenance to reduce the amount of labor consumed on the equipment. The new system requires dramatically less power to run while simultaneously streamlining upkeep.

Plant Operations And Maintenance Staff Benefits From New Headworks

The high cost of maintenance and unsatisfactory performance of the aging equipment in the Bonnybrook headworks made it clear that significant changes were in order. The older poorly performing headworks allowed screenings to pass to the downstream process units causing operational and maintenance problems. By installing the Huber RakeMax® and matching WAP washpress, Calgary’s process performance immediately improved.

Los Osos Water Recycling Facility Manages High Volume Of RFIs And Submittals

The Los Osos Water Recycling Facility is the final phase of the Los Osos Wastewater Project (LOWWP). The new 13-acre, USD 48 million facility will service the city of Los Osos’ new wastewater collection system, which includes sewer and recycled water lines, sewer laterals, pump stations, and leach fields. Prior to the new collection system and recycling facility, the entire city relied on a septic system. When completed, the new recycling facility and wastewater system will be operated and maintained by the County of San Luis Obispo, Calif.

Advanced Diagnostics of Thermal Mass Flow Meters

Many thermal mass flow meters are of the insertion type. As a starting point, proper insertion depth and straight run per the manufacturer’s recommendations should be adhered to.

Moving Waste Water Is All Downhill To Teton Pass

The town of Wilson, Wyoming - nestled along serene Fish Creek, is home of the famous Teton Pass. In the winter, Teton Pass is used by thousands of visitors as a backcountry skiing and snowboarding playground, with acres of snow-covered terrain. In the summer, Teton Pass offers everything from downhill mountain biking to casual day hikes surrounded by an abundance of colorful wildflowers. Each year, the area grows in popularity, bringing new tourism and population growth alike. By The Gorman-Rupp Company

POWERCHINA Zhongnan Standardizes 3D Collaborative Design Of Water Projects

China’s 12th Five-Year Plan (FYP) (2011-2015) allotted 20 percent more funds for municipal wastewater treatment projects to address the pervasive pollution caused by rapid urbanization and inadequate sewage disposal.

White Paper: Hoffman Revolution Blower Continues Tradition Of Innovative Design The Hoffman U.S. Machinery Division was established in 1905 outside of East Syracuse, New York. The initial product was an exhauster for the dry cleaning industry — pulling a steam vacuum across the garments.

ICEAS SBR Technology Improves Effluent Water Quality For St. Joseph WWTP

St. Joseph Sanitary District No. 1, near La Crosse, WI, operated a wastewater treatment plant (WWTP) that served approximately 1,000 residential customers.

Application Note: Testing Nitrite In Surface Water And Wastewater The Thermo Scientific Orion AQUAfast® AQ3700 Colorimeter comes programmed with methods for testing nutrients. By Thermo Fisher Scientific

Removal Of PFCs With Activated Carbon

In recent years, various perflorinated chemicals (PFCs) have come under increasing scrutiny due to their presence in the environment, in animals, and in human blood samples. There are two major classes of PFCs: perfluoroalkyl sulfonates such as perfluorooctanesulfonic acid (PFOS) and long chain perfluoroalkyl carboxylates such as perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA).

Orion DUAL STAR™ Quick Start Note - Nitrate In Water & Wastewater The Thermo Scientific Orion DUAL STAR meter shows the results of both input channels simultaneously.

Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples Total bound nitrogen (TN_b) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TN_b measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical

WWTP Utilizes Online Instrumentation And SCADA To Keep Operating Costs Low And Effluent Quality High

Providing the best value to wastewater customers requires a team of operators that have a deep sense of ownership and are committed to continuous improvement. Such is the case for the operating staff at one wastewater treatment plant whose progressive attitude and a philosophy of “do it right” led them to an investment in online instrumentation and SCADA for compliance, monitoring, and control.

3M™ Liqui-Cel™ Membrane Contactors Are Widely Used In The Soft Drink And Brewing Industries To Control Dissolved Gasses

Gas control is an important concern in the beverage industry. Oxygen in the water can oxidize flavor components and shorten the shelf life of the product. Carbon dioxide can also have an impact on taste and pH of the product.

Active Energy Control – Energy Reductions Of Up To 10% Above Standard Drives

Energy costs continue to increase. At the same time, there is increased pressure to reduce utility bills without sacrificing operations or comfort.

Optimize Your Water Discharge Quality Through Accurate Turbidity And Suspended Solids Measurement

The clarity of water in a stream, river or ocean is a key determinant in fostering a healthy and balanced aquatic ecosystem. The clearer the water, the greater the ability of light to penetrate to aquatic plants which generate the oxygen needed for aquatic life.

Lab Gas Sub-Metering Accuracy Improves With Thermal Flow Meters To Save Money

Facility administrators will find the advanced ST100 Series Thermal Mass Air/Gas Flow Meter from Fluid Components International (FCI) helps them improve the accuracy of specialty gas point of use and sub-metering operations to achieve accurate billing in their labs for better cost tracking and control.

Combining Decentralized And Centralized Wastewater Treatment Strategies To Solve Community Challenges

To sustain the environment and smart community growth while protecting public health, engineers, municipal health officials, and regulators need innovative wastewater treatment solutions. The latest evolution of decentralized systems can efficiently handle residential and commercial daily flows and are a cost-effective alternative to the large, centralized wastewater treatment plants of the past.