Which compounds are considered organic in wastewater?

Organic compounds in wastewater are primarily characterized by the presence of carbon, along with hydrogen and often oxygen. In the context of wastewater treatment and environmental science, organic compounds encompass a wide variety of substances, including carbohydrates, lipids, proteins, and various natural and synthetic chemicals. These organic materials are significant because they can be biodegradable, meaning they can be broken down by microorganisms.

The classification of organic matter is crucial for understanding the biological processes involved in wastewater treatment, as these processes rely on the ability of microorganisms to consume organic materials as a food source. This consumption leads to the reduction of pollutants and the stabilization of the sludge produced during treatment.

Compounds that are purely inorganic, such as minerals and salts, do not fit into this category, which is why they aren't considered organic. Similarly, nitrogen compounds alone do not qualify as organic unless they are part of a larger organic structure. Moreover, heavy metals are also inorganic and do not contain carbon-hydrogen bonds, further distinguishing them from organic compounds.

Recognizing the properties and significance of organic compounds in wastewater is essential for effective management and treatment strategies in on-site sewage facilities (OSSFs).