Environmental engineering

Bioremediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site.

The activated sludge process is a process for treating sewage and industrial wastewaters using air and a biological floc composed of bacteria and protozoa.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane.

Ecological engineering is an emerging study of integrating ecology and engineering, concerned with the design, monitoring, and construction of ecosystems.

Phytoremediation (from Ancient Greek φυτο (phyto), meaning "plant", and Latin remedium, meaning "restoring balance") refers to the technologies that use living plants to clean up soil, air, and water contaminated with hazardous chemicals.

A sanitary sewer or "foul sewer" is an underground carriage system specifically for transporting sewage from houses and commercial buildings through pipes to treatment or disposal.

A check dam is a small, sometimes temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity.

T5 retrofit conversion is a means of converting light fittings designed to use T8 format lamps, so that they can use more energy-efficient T5 lamps.

River engineering is the process of planned human intervention in the course, characteristics, or flow of a river with the intention of producing some defined benefit.

A pneumatic bladder is an inflatable (pneumatic) bag technology with many applications.

The Indian Rivers Inter-link is a proposed large-scale civil engineering project that aims to link Indian rivers by a network of reservoirs and canals and so reduce persistent floods in some parts and water shortages in other parts of India.

An emission intensity is the average emission rate of a given pollutant from a given source relative to the intensity of a specific activity; for example grams of carbon dioxide released per megajoule of energy produced, or the ratio of greenhouse gas emissions produced to gross domestic product (GDP).

Noise control or noise mitigation is a set of strategies to reduce noise pollution or to reduce the impact of that noise, whether outdoors or indoors.

Biofiltration is a pollution control technique using living material to capture and biologically degrade pollutants.

Environmental engineering science (EES) is a multidisciplinary field of engineering science that combines the biological, chemical and physical sciences with the field of engineering.

The Environmental Engineering and Renewable Energies is the branch of engineering that operates in the areas of Environmental Engineering , Sanitary Engineering and Power Engineering.

Carbon-neutral fuels can refer to a variety of energy fuels or energy systems which have no net greenhouse gas emissions or carbon footprint.