An MABR is essentially a biological wastewater treatment process that utilizes seemingly passive aeration through oxygen-permeable membranes. Oxygen transfer through the MABR membranes is diffusion based: driven by concentration differences such that oxygen passes from air at atmospheric pressure into water at a higher hydrostatic pressure. This oxygen transfer mechanism, wherein air is supplied to the process at very low pressure, is the reason MABRs have significantly lower energy consumption compared to other wastewater treatment processes, such as conventional activated sludge (CAS), that utilize diffusers. This energy savings is one of the key reasons MABRs are gaining traction in the municipal wastewater industry.

In 2000, the district’s average water demand was 2.3 million gallons per day (MGD) (363 m3/hr) and was estimated to grow over 20% by 2030. Unfortunately, there was not a sufficient or permanent reliable source of supply to meet future demands.

Through hydraulic computer modeling, MWH Global helped alleviate stormwater flooding in Cambridge, M.A., by creating the Alewife Reservation Stormwater Wetland to enhance water quality and provide recreational benefits to the community.

Liquid-only sewers have proven to be a cost-effective solution for municipalities, new subdivisions, and a variety of other areas in need of sewer -- as opposed to the big pipes and deep excavations.

After two years operation the plant reports that RoS2S Disk Thickener is consistently producing a 5.5% DS average with an ~0.6% DS average feed at a steady flow of 107 gpm (60 gpm activated, 7 gpm trickling, 40 gpm service water) running 24 hours a day.

Wastewater flows in seasonal resorts are highly volatile. Learn how to stabilize biological treatment against sudden peak demands and low-flow off-seasons, ensuring continuous compliance and securing a high-quality water source for reuse.

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

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

Learn how common wastewater technologies are being leveraged in decentralized systems and how they can open opportunities for innovation and better water management in the face of drought.

Los Alamos, NM, the former site of topsecret laboratories where government scientists developed the atomic bomb during World War II, is once again a town at the forefront of new technology.

This application note presents comparative data obtained on influent and effluent wastewater samples using laboratory and on-line TOC analyzers employing the heated sodium persulfate oxidation technique in USEPA-approved methods 415.3 and SM 5310C.

Stockholm water company produces biogas from their wastewater facility which feeds Scandinavian Biogas for energy production. As they need to accurately meter what they sell to the energy facility they used a project contractor firm to engineer and define the best solution for the project.

Automated scraper strainers pre-filter water and wastewater to protect fragile membrane systems from damage caused by large, suspended particles, reducing maintenance and replacement costs.

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

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.

Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached

Any process plant constantly generates a high volume of status data. Today, this data can be extracted from the plant, stored, analyzed, and prepared to meet operator needs and lower marginal costs.

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

Clean-in-Place (CIP) systems are critical for industries where hygiene and contamination control are mandatory—such as food and beverage, pharmaceuticals, and specialty chemical manufacturing. These systems automate cleaning through validated, programmed steps that ensure compliance with stringent safety and quality standards. This application note explores the challenges of CIP operations and demonstrates how Pulsafeeder’s NextStep pump technology addresses these challenges with precision, reliability, and cost efficiency.