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

Understanding Sustained Efficiency In Non-Clog Pumps

This white paper will provide a review of pump efficiency and the benefit of self-cleaning hydraulics in wastewater pumping. 

How AI Optimizes The Chemical Treatment Of Wastewater

Wastewater treatment is a complex process that has largely remained unchanged for the last 100 years. Besides the physical and biological processes, the chemical treatment of wastewater is the third and perhaps the most crucial part of sewage processing and wastewater treatment practices. Typical operations include the processing of sewage/effluent through various stages of comprehensive chemical treatment, like pH neutralization, oxidation, ion exchange, coagulation, and flocculation.

Article: High Quality Tank Coatings: The Best Protection For Rural Water Supplies All liquids – whether wastewater, chemicals, stormwater, potable water or others – are aggressive toward the tanks in which they are stored. Such aggression results in corrosion, the principal enemy of the tank. Corrosion shortens the life of the tank, increases maintenance, and may contaminate the tank’s contents. By Mark Eklund P.E., Product Manager for Wastewater Market Sales, Columbian TecTank

Special Gas Chlorination System Replaces Tablet System At WWTP, Providing Enhanced Safety Needed For Gas Option, While Cutting Chemical Costs

The district manager for the Pinetop-Lakeside Sanitary District (AZ) reports that a special gas chlorination system, featuring unique components and controls, and manufacturer-supplied service, has effectively replaced a chlorine tablet system.

Applying Variable Speed Compressors In Multiple Compressor Applications

Variable speed control for all types of industrial equipment is readily available on the market with competitive pricing to non-variable speed controlled alternatives, including in the air compressor industry. With the advent of prescriptive rebate programs for variable speed compressors and other equipment, the demand for these types of controls has increased.

Emergency Bypass For Sewer Facility Circumvents Natural And Manmade Obstacles

When operators at the Rivanna Water & Sewer Authority (RWSA) in Charlottesville, Virginia discovered a compromise in the 54-inch secondary effluent water line at their Moores Creek Advanced Water Resource Recovery Facility, they took immediate action to address the problem.

Refinery Expands Production While Meeting Discharge Standards Quality

Petron Bataan Refinery wanted to expand production to process 180 thousand barrels of crude oil per day while changing its feedstock from Arab Light to less costly heavy and sour crudes.

Wastewater Lagoons — A New Aeration Concept

The use of wastewater treatment lagoons, or stabilization ponds, is a common practice for rural municipalities and industrial facilities. Through the years there have been numerous designs for these ‘sludge settling basins,’ ranging from facultative, partial aerated, and fully aerated systems.

SDOX Technology Mitigates Sulfide Production By Promoting Aerobic Environment

The Plant’s wastewater treatment facility uses four, covered anaerobic lagoons to manage BOD, pretreating wastewater prior to sending the effluent to a pumping station which directs the wastewater into the municipal collection system for final treatment at the City’s wastewater treatment plant. Read more to learn how the company used hydrogen peroxide and a catalyst to maintain an aerobic environment but was unable to adequately mitigate the odor from the facility’s wastewater.

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. 

Municipal Real-Time Water Quality Monitoring

We arm municipalities with actionable data necessary to make informed decisions about water quality in their communities

Optimizing Air Flows To Aeration Basins

As a result of clean energy mandates and the rising cost of energy, wastewater treatment facilities around the country are retrofitting their instrumentation to run highly efficient, cost-effective, clean facilities. To reduce emissions and produce clean energy, solid wastes are often digested in large digester tanks to reduce the volume of waste (sludge) and produce more biogas, which is then used as fuel in the cogeneration process. However, a clean environment calls for not just clean air and clean energy, but clean water as well.

Alcoholic Beverage Fusel Alcohol Testing With Static Headspace

A static headspace method was developed using Teledyne Tekmar automated headspace vial samplers to meet the method requirements of the Alcohol and Tobacco Tax and Trade Bureau of the US Department of the Treasury (TTB) method SSD: TM:2001 for testing fusel alcohols in alcoholic beverages.

Analysis Of Pesticide Residue In Spinach Using The AutoMate-Q40 An Automated QuEChERS Solution

QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities.

Real-Time Water Quality Data For Agriculture

We arm farmers with mission-critical water data to help enhance crop yield and taste. KETOS delivers valuable insights for fluctuations in deficiency and toxicity.

Harmonics Reduction Methods

There are several basic methods for reducing harmonic voltage and current distortion from nonlinear distribution loads such as adjustable frequency drives (AFDs). Following is a description of each method, along with each method’s advantages and disadvantages.

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.

Determination Of Polar Pesticide Residues In Food Of Plant Origin, By And Automate QuPPe Solution

The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.

Flow And Concentration Measurement For Automated Sludge Thickening

Learn how a wastewater treatment plant in eastern Switzerland relies on the targeted use of flocculants to prevent sludge washout.