Category: Aeration

Aeration

January 21, 2016 5 min read

Wastewater Pathogen Removal: Do Lagoons Do It Better?

When it comes to controlling disease-causing pathogens, lagoons do it better—but do they do it well enough? The purpose of wastewater treatment is to remove before discharge any substance that can have a negative effect on the environment. In previous articles, we’ve discussed BOD removal, nutrients like ammonia and phosphorus, and contaminants like pharmaceuticals and personal […]

Read article →

Aeration

August 12, 2015 6 min read

Aerated Lagoon Design: Partial Mix vs. Complete Mix

According to an EPA wastewater technology fact sheet, the purpose of wastewater aeration is twofold: to supply the required oxygen to the metabolizing microorganisms; and to provide mixing so that the microorganisms come into contact with the dissolved and suspended organic matter. Thus, mixing is a critical component of wastewater lagoon aeration. You can design […]

Read article →

Aeration

July 24, 2015 8 min read

Aerated Lagoons: 5 Design Factors to Consider

An aerated lagoon can be one of the most efficient, cost-effective, and low-maintenance methods of wastewater treatment. Because aeration can account for 50–60% of energy costs, it’s important to consider design conditions when determining the type and amount of aeration required. This article will provide an overview of the factors, namely SOTE, SAE, aeration type, flow […]

Read article →

Aeration

May 12, 2015 4 min read

Removing Wastewater Contaminants: Lagoons Do It Better

Virtually everything people consume or use ends up in the waste stream and ultimately back into the environment. A class of substances the EPA calls Contaminants of Emerging Concern, or CECs, has come under scrutiny in recent years to determine what types of chemicals are ending up in wastewater and how various wastewater treatment methods perform […]

Read article →

Aeration

April 6, 2015 4 min read

How to Prevent Spring Lagoon Turnover and Odors

Spring is in the air, and for some wastewater lagoons, that means foul lagoon odors are in the air, too. In this short article, we’ll talk about spring lagoon turnover, why it can cause odors, and how to prevent it. What is spring lagoon turnover? An improperly mixed wastewater lagoon will settle into layers, with […]

Read article →

Aeration

March 20, 2015 5 min read

Using Wastewater Lagoon pH as a Diagnostic Tool

Wastewater lagoon pH is a common testing parameter that is easily taken for granted. Dig a little deeper, however, and pH can give you valuable clues about what’s going on in your lagoon and help you troubleshoot the source of effluent problems. In this article we’ll talk about what pH is and what various pH readings […]

Read article →

Odor Aeration

December 22, 2014 4 min read

How to Prevent Wastewater Lagoon Short Circuit

It’s wintertime, the season when a wastewater lagoon is most likely to short circuit due to the disparity between the influent wastewater temperature and the ambient lagoon temperature. In a previous article, Four Causes of Wastewater Lagoon Short Circuit, we defined what short circuiting is and what causes it. In this article, we’ll cover how to […]

Read article →

Industrial Wastewater Aeration

December 9, 2014 4 min read

Four Causes of Wastewater Lagoon Short Circuit

We’ve referenced short-circuiting several times as a potential cause of wastewater lagoon effluent problems. A lagoon is more likely to short circuit in the winter, when influent wastewater is warmer than the lagoon temperature, so it’s a good time to examine the topic in a little more detail. In this article we’ll define what short-circuiting […]

Read article →

Aeration

November 24, 2014 4 min read

Winter Wastewater Lagoon Operations: Is Your Lagoon Ready?

Is your wastewater lagoon ready for winter? We’re just days away from the start of meteorological winter, although some areas of the country have gotten a head start with unseasonably cold temperatures and significant early snowfall. It’s a good time to examine what happens to a wastewater lagoon in winter. In this brief article, we’ll […]

Read article →

Aeration

November 13, 2014 6 min read

Lagoon Infiltration and Inflow: Problems and Solutions

One of the biggest challenges for all types of wastewater systems, including lagoons, is infiltration and inflow. In this short article, we’ll define Lagoon Infiltration and Inflow, commonly abbreviated as “I&I,” explore the causes, and discuss what can be done to mitigate it. What is Lagoon Infiltration & Inflow?   Lagoon I&I encompasses all water […]

Read article →

Aeration

October 27, 2014 4 min read

Seven Signs of an Overloaded Lagoon

Is Your Lagoon Overloaded? Organic overloading is a common cause of wastewater lagoon effluent problems. In this article, we’ll define an overloaded lagoon and describe the problems it can cause, outline the seven signs to look for, and then offer solutions. What Is an Overloaded Lagoon? One sign of an overloaded lagoon is a floating […]

Read article →

Aeration

February 10, 2014 6 min read

Lagoon Fine Bubble Aeration: How to Choose the Best Option

Wastewater lagoon fine bubble aeration is a common way that facilities efficiently meet the treatment standards of state environmental regulating bodies. Since aeration typically accounts for at least 50–60% of the energy costs associated with aerated lagoon treatment, selecting the right lagoon fine bubble aeration system is crucial to the efficient operation of a wastewater […]

Read article →