What is Carbon containing Compound in sewage treatment plant?

Sewage treatment plants are designed to treat the organic and inorganic substances present in wastewater. One of the major components of sewage is carbon-containing compounds. These compounds can be in the form of simple organic molecules such as carbohydrates, proteins, and lipids or complex organic molecules such as synthetic organic chemicals.

Carbon-containing compounds in sewage can pose a significant challenge for wastewater treatment because they can be difficult to break down and can also lead to the production of harmful by-products during the treatment process. Therefore, it is essential to use effective treatment methods to remove these compounds from wastewater before it is released into the environment.

Sources of Carbon-Containing Compounds in Sewage

Carbon-containing compounds in sewage can come from a variety of sources, including human waste, food waste, and industrial discharge. Human waste contains organic compounds such as urea, amino acids, and fatty acids. Food waste, such as vegetable and fruit peels, also contains organic compounds such as cellulose and starch. Industrial discharge can contain a variety of synthetic organic chemicals that are used in various industrial processes.

Treatment Methods for Carbon-Containing Compounds in Sewage

There are several treatment methods that can be used to remove carbon-containing compounds from wastewater in sewage treatment plants. Some of the most common methods include:

1. Biological Treatment

Biological treatment is a widely used method for treating carbon-containing compounds in sewage. In this method, microorganisms such as bacteria and fungi are used to break down organic matter into simpler compounds that can be easily treated. The microorganisms use the organic matter as a food source, converting it into carbon dioxide, water, and other compounds.

2. Physical Treatment

Physical treatment methods such as screening, sedimentation, and filtration can also be used to remove carbon-containing compounds from wastewater. Screening involves removing large debris and solids from the wastewater. Sedimentation involves allowing the wastewater to settle, allowing the heavier solids to settle to the bottom. Filtration involves passing the wastewater through a filter to remove smaller particles.

3. Chemical Treatment

Chemical treatment methods can also be used to remove carbon-containing compounds from wastewater. Chemical coagulants such as alum, ferric chloride, and polyaluminum chloride can be added to the wastewater to help remove suspended solids and organic matter. Chemical oxidants such as chlorine and ozone can be used to oxidize organic matter and disinfect the wastewater.

4. Advanced Treatment Methods

Advanced treatment methods such as activated carbon adsorption and membrane filtration can also be used to remove carbon-containing compounds from wastewater. Activated carbon adsorption involves using activated carbon to adsorb organic matter from the wastewater. Membrane filtration involves using a membrane to filter out particles and organic matter from the wastewater.

Conclusion:

Carbon-containing compounds in sewage treatment plants are a major component of wastewater that must be treated effectively to ensure the success of the treatment process. Treatment processes include primary, secondary, and tertiary treatments that involve physical, biological, and chemical methods. Effective treatment of carbon-containing compounds in sewage treatment plants is critical to protecting the environment and ensuring the safety of the water supply.