What is Biological Oxygen Demand (BOD)? - Wastewater Digest
Oct 27, 2021 · Sources of BOD. Sources of biological oxygen demand include leaves and woody debris; dead plants and animals; animal manure; effluents from pulp and paper mills, wastewater treatment plants, feedlots, and food-processing plants; failing septic systems; and urban storm water runoff.. One of the most important nutrients affecting BOD in aquatic systems — especially in recent times — is ...
What is Activated Sludge? - Wastewater Digest
Jun 17, 2021 · How the activated sludge process works. The activated sludge process is designed to speed up the rate of decomposition of waste material in water and was first developed in 1914, according to the International Water Association. The activated sludge process was first tested at the Manchester - Davyhulme Wastewater Treatment Plant, in a "mobile" pilot-plant.
What is Total Suspended Solids (TSS)? - Wastewater Digest
Sep 9, 2021 · Sand. Sand in water is particularly a problem in areas with a sandier soil composition. Again, it is an issue one is most likely to experience if they are a well owner, and the simplest solution is to filter it out with a sediment filter.Sand is another heavier particle that usually settles at the bottom of a body of water.
What is Wastewater? | Wastewater Digest
Dec 1, 2021 · About the author: Cristina Tuser is an Associate Editor for Water & Wastes Digest magazine. Tuser can be reached at [email protected] or 847.391.1007. What is wastewater? Wastewater is used water that has been affected by domestic, industrial and commercial use.
What is Aeration for Wastewater Treatment?
Mar 17, 2022 · What is Aeration? Aeration is the process by which air is circulated through, mixed with or dissolved in a liquid or substance. Aeration brings water and air in close contact in order to remove dissolved gases and to oxidize dissolved metals, including iron, hydrogen sulfide, and volatile organic chemicals (VOCs).
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7 Basic Types of Temperature Measuring Sensors
Dec 28, 2000 · The seven basic types of temperature measurement sensors or temperature checking devices discussed here are thermocouples, resistive temperature devices (RTDs, thermistors), infrared radiators, bimetallic devices, liquid expansion devices, molecular change-of-state and silicon diodes.
What is Alkalinity? - Wastewater Digest
Sep 14, 2022 · Alkalinity is a water property that is measured by the number of chemicals present. This article discusses important information about water alkalinity, including the factors that affect alkalinity, how alkalinity is measured, and the importance of alkalinity in water.
What is Wastewater Treatment? | Wastewater Digest
Mar 11, 2021 · About the author: Cristina Tuser is Associate Editor for WWD. Tuser can be reached at [email protected].. Wastewater treatment is the process of converting wastewater into water that can be discharged back into the environment.. According to the U.S. EPA, one of the most common forms of pollution control in the U.S. is wastewater treatment.The purpose of wastewater treatment is to speed up the ...
What is Coagulation for Water Treatment? - Wastewater Digest
Mar 8, 2022 · What Is Removed During Coagulation? Coagulation is most effective at removing suspended solids and natural organic matter like gravel, sand, algae, clay, iron, protozoa, and even bacteria. Many of these contaminants can give water an unpleasant taste when present in large quantities, and can also give water a brown or orange color.