Tucked away in a quiet corner of Arlington County lies an unassuming complex of buildings that play a vital role in maintaining the health and cleanliness of our waterways. The Arlington Waste Water Treatment Plant has been operating since 1959 to treat sewage from Arlington County and discharge clean water back into the environment. On […]
As water scarcity intensifies globally, innovative technologies are needed to ensure adequate supply and optimize treatment. Water processes based on osmosis, the natural diffusion of water across a semi-permeable membrane, have generated growing interest for their efficiency, reliability, and environmental sustainability. Engineered osmosis methods like forward osmosis (FO) and pressure-retarded osmosis (PRO) utilize optimized membranes […]
Anaerobic digestion is a biological process that plays a crucial role in wastewater management by breaking down organic material in the absence of oxygen. This process not only reduces the amount of waste but also converts it into biogas, a renewable energy source comprising primarily methane and carbon dioxide. Wastewater treatment plants around the globe […]
In the realm of wastewater treatment, sidestream ozone injection represents a sophisticated method aimed at enhancing water quality through the application of ozone, a powerful oxidizing agent. This technique introduces ozone directly into a sidestream of the wastewater before mixing it back into the main flow. The utilization of ozone plays a crucial role in […]
Ultrasonic irradiation in wastewater treatment is an innovative and emerging technology that employs high-frequency sound waves to assist in the cleansing process. This method utilizes the power of ultrasonics to disrupt the cellular structures of pathogens and compounds, leading to their eventual breakdown. It is increasingly recognized for its potential to enhance the effectiveness of […]
Cascade aerators are a critical component in the treatment of wastewater, serving the primary function of introducing air into the water to increase the dissolved oxygen content. This process is essential for the biological treatment stages of wastewater management, where aerobic bacteria break down organic pollutants. The design of cascade aerators takes advantage of gravity […]
Efficient wastewater management is a critical concern for municipalities and industries around the globe, and rotary fan presses play a significant role in streamlining this process. Rotary fan presses are an advanced dewatering technology designed to separate liquids from solids in sludge, a byproduct of wastewater treatment. By applying steady pressure and rotational movement, these […]
Pulsed UV systems represent a modern approach to wastewater treatment, leveraging the power of ultraviolet (UV) light in short, intense bursts to inactivate microorganisms and break down harmful pollutants. Unlike continuous-wave UV systems, which emit a steady stream of light, pulsed UV systems deliver UV energy in pulses that can be more effective at penetrating […]
Reed beds are a natural and sustainable method for treating wastewater that utilizes the unique properties of reeds to break down pollutants. This eco-friendly technology harnesses the ability of certain plant species to absorb and metabolize waste materials from water as it passes through their root systems. Often integrated into the broader context of constructed […]
Drum filters play a crucial role in the wastewater treatment process, providing a mechanical filtration solution that is both effective and reliable. These filters work by trapping solids as wastewater passes through a rotating drum that is covered with a filtering screen or fabric. Designed to handle a wide range of waste streams, drum filters […]