Resources
Technical articles on biomass management, molecular diagnostics, and biological wastewater treatment.
As wastewater professionals, we’re all familiar with the activated sludge process—the backbone of many treatment plants. But one aspect that often flies under the radar until it causes issues is …
Oct 30, 2025Wastewater treatment plants (WWTPs) are increasingly required to meet stringent inorganic nitrogen discharge limits, necessitating reliable year-round ammonia oxidation and denitrification. Integrating biofilm-based technologies, such as Moving Bed Biofilm Reactors …
Oct 20, 2025Domestic wastewater is a complex mixture of organic and synthetic compounds. Its overall strength is typically assessed using indicators like BOD₅ (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), and TOC …
Oct 14, 2025We are often asked about the impact of various chemicals on wastewater treatment plants. Over the years, we have compounded a list of the primary industrial chemicals that inhibit the …
Oct 12, 2025As temperatures drop, wastewater treatment plants face a seasonal challenge that’s as subtle as it is critical: maintaining the delicate balance between nitrifying bacteria and filamentous organisms. Winter operations demand …
Oct 6, 2025Quaternary Ammonium Compounds (QACs) are commonly found in disinfectants, detergents, and personal care products. Their extensive use has led to increased concentrations in wastewater. To better understand how this impacts …
Sep 26, 2025In wastewater treatment, invisible forces shape the performance of entire systems. One of the most powerful—and often overlooked—players in this microbial drama is the polyvalent cation. These positively charged ions, …
Sep 16, 2025Wastewater treatment is a complex process that relies on a delicate balance of physical, chemical, and biological factors. At the heart of most conventional wastewater treatment plants are microorganisms that …
Sep 3, 2025When it comes to nitrogen monitoring in wastewater, ammonia often steals the spotlight. But if you’re only tracking ammonia, you’re missing a critical piece of the puzzle: Total Kjeldahl Nitrogen …
Aug 28, 2025Ever wondered what we’re missing in the microbial world? Just like astronomical dark matter makes up most of our universe but remains largely mysterious, microbial dark matter represents the hidden …
Aug 24, 2025Anaerobic digesters are marvels of sustainable technology, transforming organic waste—like manure, food scraps, and sewage—into renewable energy in the form of biogas while reducing greenhouse gas emissions. At their core, …
Aug 19, 2025Pseudomonas bacteria are proving to be formidable opponents in industrial cooling towers, rapidly developing resistance to glutaraldehyde biocides that were once highly effective. Here’s what’s happening: The Challenge: Pseudomonas species …