Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Wastewater Treatment Processes

In course

ENV-509: Applied wastewater engineering

This course on applied wastewater treatment focuses on engineering and scientific aspects to achieve high effluent water quality and to handle wastes and air emissions generated in wastewater treatment plants. ...

Description

This lecture covers the analysis of mid-term exam results, emphasizing the importance of focusing on strong areas, efficient problem-solving strategies, and the significance of time management in engineering. The instructor explains the design and operation of wastewater treatment plants, including the removal of metals and organic pollutants, denitrification, and phosphorus removal. Key concepts such as activated sludge treatment, anaerobic and anoxic tanks, and the use of granular activated carbon are discussed in detail, along with the role of ozone in wastewater treatment. The lecture concludes with a practical exercise on designing a powder activated carbon treatment system.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Official source

Ontological neighbourhood

Environmental science

Pollution: Water pollution

Related concepts (32)

Sewage treatment

Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. Sewage contains wastewater from households and businesses and possibly pre-treated industrial wastewater. There are a high number of sewage treatment processes to choose from.

Activated sludge

The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa. It uses air (or oxygen) and microorganisms to biologically oxidize organic pollutants, producing a waste sludge (or floc) containing the oxidized material. The activated sludge process for removing carbonaceous pollution begins with an aeration tank where air (or oxygen) is injected into the waste water.

Wastewater treatment

Wastewater treatment is a process which removes and eliminates contaminants from wastewater and converts this into an effluent that can be returned to the water cycle. Once returned to the water cycle, the effluent creates an acceptable impact on the environment or is reused for various purposes (called water reclamation). The treatment process takes place in a wastewater treatment plant. There are several kinds of wastewater which are treated at the appropriate type of wastewater treatment plant.

Industrial wastewater treatment

Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment. Some industrial facilities generate wastewater that can be treated in sewage treatment plants.

Secondary treatment

Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option. A "primary treatment" step often precedes secondary treatment, whereby physical phase separation is used to remove settleable solids.

Related lectures (34)

Wastewater Treatment: Nutrient Removal

Explores biological nutrient removal and chemical phosphorous removal in wastewater treatment plants, emphasizing denitrification and phosphate removal methods.

Water and Wastewater Treatment: Introduction

Covers the basics of water and wastewater treatment, including the history of wastewater treatment, undesirable pollutants, and treatment performance.

Biological Nutrient Removal: Nitrogen and Phosphorus

Explores biological nutrient removal in wastewater treatment, covering nitrogen and phosphorus removal, activated sludge process, nitrification, denitrification, and phosphorus recovery.

Wastewater Treatment II

Delves into advanced wastewater treatment processes, including oxygen demand, phosphate removal, and biological nitrogen removal, addressing the challenges of micropollutants.

Wastewater Treatment I