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

Lecture

Microalgae: Wastewater Treatment

Description

This lecture explores the potential of microalgae in wastewater treatment, highlighting their ability to grow photosynthetically and produce algal biomass. It discusses the global distribution of private companies utilizing microalgae for various products and the challenges of stimulating microalgae growth sustainably. The lecture also covers different technologies for microalgae production, such as closed and open photobioreactors, as well as high rate algal ponds for both wastewater treatment and biomass production. Additionally, it delves into the importance of carbon dioxide addition and biomass harvesting techniques in enhancing microalgae cultivation.

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.

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.

Water treatment

Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable components, or reduces their concentration so that the water becomes fit for its desired end-use. This treatment is crucial to human health and allows humans to benefit from both drinking and irrigation use.

Algae fuel

Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source of energy-rich oils. Also, algae fuels are an alternative to commonly known biofuel sources, such as corn and sugarcane. When made from seaweed (macroalgae) it can be known as seaweed fuel or seaweed oil. In December 2022, ExxonMobil, the last large oil company to invest in algae biofuels, ended its research funding. In 1942 Harder and Von Witsch were the first to propose that microalgae be grown as a source of lipids for food or fuel.

Related lectures (34)

Microbial Control: Bacterial Growth, Nitrification, and Bioremediation

Explores bacterial growth, nitrification, and bioremediation techniques in microbial control.

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.

N & P Metabolism in Megacities

Delves into the N and P metabolism in megacities, using Beijing as a case study to analyze nutrient inputs, flows, and environmental consequences.

Wastewater Treatment I