Article: Floating Horizontal Aerators Enhance Eufaula, Alabama Activated Sludge Plant The Eufaula, Alabama, wastewater treatment plant (WWTP) is an extended aeration activated sludge facility designed for an average daily flow rate of 2.7 million gallons per day (mgd). Prior to February, 2005 this WWTP used vertical aerators to provide oxygen and mixing in its aerator basins. The plant has two aeration basins, each 1.87 million gallons in volume, which had 160 horsepower (hp) of vertical aerators in each basin

AquaNereda Provides The Lowest Total Cost Of Ownership For 10x Capacity Increase And Nutrient Removal Limits

The Wolcott Wastewater Treatment Plant in Kansas City chose the AquaNereda technology for its capacity and cost benefits. The system improved nutrient removal and met permit requirements.

Thrust Restraint Design Equations And Soil Parameters For Ductile Iron And PVC Pipe

These equations and soil parameters are an effort to provide the piping system designer with conservative techniques and parameters for the design of underground restrained joint piping systems. 

How To Design A Better Carbon-Filtration Solution

Here is a look at how synthetic carbon technology makes it easier to design a better filtration medium tailored to the most challenging process demands.

Premium Efficient Shaft Grounding Rings VFD Operation

When a motor is operated on a variable frequency drive, unexpected voltage can be induced on the rotor and shaft.

New Data Management Capabilities Help Labs Run Smoothly

Laboratory performance is critical for evaluating water treatment operations — from operational and disinfection efficiency to regulatory compliance reporting to human health and safety. Errors, oversights, or incomplete documentation can plague even the most finely tuned water treatment utilities. Here is a quick review of tools and techniques that can improve workflow accountability.

Advantages Of Using Ozone And Biologically Active Filtration For Potable Reuse

Understanding how ozonation and biologically active filtration (O3-BAF) systems work and their benefits in reuse can help water authorities meet cost, treatment, and sustainability goals.

JWC's Honey Monster Helps Big Fish Environmental Find Clean Water

For several years, local Michigan municipalities were overloaded with septage disposal issues and it was difficult for private pumpers to offload as land-application of septage became illegal. So John Campbell, founder of Big Fish Environmental and a 29-year veteran of septic tank pumping, started developing a unique and efficient septage receiving and treatment plant design. By JWC Environmental

 

WWTP Air Handling Control Philosophies: Do's And Don'ts

Without an appropriate control strategy, even the best wastewater treatment plant (WWTP) equipment can struggle to deliver maximum efficiency. Because energy costs represent up to 60 percent of WWTP plant operating expense, air distribution designs and changing loading (biochemical/biological oxygen demand [BOD]/chemical oxygen demand [COD], ammonia) demands require control strategies designed to adapt to all eventualities efficiently. The following checklists, plus important Do’s and Don’ts, can help in identifying an underperforming control strategy and developing a better one.

Challenges And Solutions To Treating Beverage Wastewater

Discover how one beverage manufacturer was able to balance producing a quality product while also undertaking the challenging of reclaiming and treating its effluent.

UV Technology Offers Solution For Emerging Water Crisis

Many are turning to UV as an effective barrier to enable the reuse of wastewater, for indirect reuse, and aquifer recharge.

AquaSBR Systems Above 10 MGD

This application note will explore installations of AquaSBR Systems worldwide in a variety of municipal and industrial applications. 

Filter Installations Remove Solids From FGD Scrubber Effluent

Power plants and refineries around the world must manage and treat complex effluent waste streams from the Flue Gas Desulfurization (FGD) process. Flue gas is generated by the combustion process of fossil and fossil-derived fuels, such as coal, oils, and natural gas in power plants. Petrochemical refineries may generate flue gas from a number of different processes, including Catalytic Cracking, Steam Methane Reforming, and Heaters or Furnaces.

Getting Clarity On Clarification

Read an overview and maintenance tips for chain and scraper systems. 

Magnetic Flow Meters Improve Recycling Of Gas Well-Produced Water

As old gas & oil fields play out, newer methods must be used to extract resources from areas where they are locked in layers of shale. One current technique is known as “fraccing,” in which high pressure water is pumped into the well shaft to “fracture” the rock layers, allowing more natural gas to escape and be collected. However, this technique poses a number of environmental problems, including contamination of water with hydrocarbons, solid particulates, and scale producing ions — making it unsuitable for reuse.

Remote Monitoring And Maintenance Through Digitalization

Siemens offers to our customers the ability to make both process measurements, and to remotely monitor the activity and health of instrumentation, whether you have a SCADA, PLC or DCS system, or not. By utilizing Siemens’ ability to offer unparalleled flow, level, pressure, temperature, and weight measurement we can provide a broad range of process measurements and offer unequaled monitoring of the health and performance of those products.

Pile Cloth Media Filtration For Clean Utilities

Cooling towers and boilers consume the most fresh water in the industry, with industrial process waters carrying the balance. Power plants and refineries use more water volume for the cooling process than any other area of the facility. Mining and food and beverage industries consume higher volumes for their processes. Clean water may come from a range of sources, including clarified surface waters, groundwater or properly treated wastewater (reuse) sources.

Best Practices In Moist And Wet Gas Flow

The Wet Gas MASSter sensor is for use in applications that have a high level of moisture or condensation present in the gas flow stream that cannot otherwise be removed.

Reducing Total Phosphorus In Water Resource Recovery Facilities

Monitoring phosphate during the wastewater treatment process allows for fine-tuning and optimizing chemical dosing for removal of phosphate, which provides significant cost savings to the plant while protecting the aquatic environment downstream of the facility.

Bringing Efficiency And New Confidence To BOD₅ Analysis

Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons.