Environmental engineering

thumb|upright=1.3|Rain falling over a drainage basin in [[Scotland. Understanding the cycling of water into, through, and out of catchments is a key element of hydrology.]]

range of air temperatures that most people prefer for indoor settings

process of treating sewerage before release into the environment or water reuse

professional engineering discipline related to environmental science

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

Bioremediation broadly refers to any process wherein a biological system (typically bacteria, microalgae, fungi in mycoremediation, and plants in phytoremediation), living or dead, is employed for removing environmental pollutants from air, water, soil, fuel gasses, industrial effluents etc., in natural or artificial settings. The natural ability of organisms to adsorb, accumulate, and degrade common and emerging pollutants has attracted the use of biological resources in treatment of contaminated environment. In comparison to conventional physicochemical treatment methods bioremediation may o

analysis of the relationships between different physical quantities by identifying their base quantities and units of measure

thumb|upright=1.3|Some heavy metals such as copper and zinc are removed from the soil by moving up into the plant roots.

system of engineered hydrologic and hydraulic components which provide water supply

rainwater harvesting infrastructure

exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution

thumb|right| Biosolids composting plant biofilter mound - note sprinkler visible front right to maintain proper moisture level for optimum functioning

right|thumb|Acqua alta [[floods in Piazza San Marco, November, 2004. The increasing frequency of this type of event caused considerable damage and prompted projects such as MOSE.]]

converting wastewater into an effluent for return to the water cycle

sustainable and resilient infrastructure

Technologies used in fossil-fuel power plants

waste product from brewing coffee; used to adulterate pure coffee, to grow mushrooms, to stain wood, to freshen air, to make body soap scrubs, to treat wastewater, or to make biogas

sewer that carries household waste water but not stormwater

thumb|300px|Revegetation on the banks of the Potomac River, USA thumb|302x302px|CSIRO ScienceImage 4361 Revegetation of degraded site northern China 1991 thumb|302x302px|Riparian revegetation work at the Mount Polley mine in British Columbia, Canada Revegetation is the process of replanting and rebuilding the soil of disturbed land. This may be a natural process produced by plant colonization and succession, manmade rewilding projects, accelerated process designed to repair damage to a landscape due to wildfire, mining, flood, or other cause. Originally the process was simply one of applying s

thumb|right|Scheme of a cesspit that is constructed like an underground holding tank

artificial wetland to treat municipal or industrial wastewater, greywater or stormwater runoff

emission rate of a given pollutant relative to the intensity of a specific activity, or an industrial production process; e.g. grams of CO₂ released per megajoule of energy produced, or the ratio of greenhouse gas emissions produced to GDP

movement of solid particles, typically by gravity and fluid entrainment

treatment process used in sewage plants

right|thumb|A slurry composed of glass beads in silicone oil flowing down an inclined plane thumb|Potato starch slurry A slurry is a mixture of denser solids suspended in liquid, usually water. The most common use of slurry is as a means of transporting solids or separating minerals, the liquid being a carrier that is pumped on a device such as a centrifugal pump. The size of solid particles may vary from 1 micrometre up to hundreds of millimetres. The particles may settle below a certain transport velocity and the mixture can behave like a Newtonian or non-Newtonian fluid. Depending on the mi

type of fuel which have no net greenhouse gas emissions

form of rainwater runoff management

Electrocoagulation (EC) is a technique used for wastewater treatment, wash water treatment, industrially processed water, and medical treatment. Electrocoagulation has become a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, total petroleum hydrocarbons, refractory organics, suspended solids, and heavy metals. There are many brands of electrocoagulation devices available, and they can range in complexity from a simple anode and cathode to much

deliberate human modification of the course, flow, or other characteristics of a river

sub-surface drainage system

mathematical simulation of how air pollutants disperse in the ambient atmosphere

artificial pond to manage stormwater

uses ecology and engineering to predict, design, construct or restore, and manage ecosystems that integrate "human society with its natural environment for the benefit of both"

application of engineering methods to improve sanitation of human communities, primarily by providing the removal and disposal of human waste, and in addition to the supply of safe potable water

strategies to reduce noise pollution or its impact

small dam

gas exiting to the atmosphere via a flue

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[[File:Bakhátas magaságyás 2.png|thumb|A schematic image of a Hügelkultur mound.

combination of a membrane process with a biological wastewater treatment process

approach to sanitation provision which aims to safely reuse excreta in agriculture

Retrofitting is the addition of new technology or features to older systems. Retrofits can happen for a number of reasons, for example with big capital expenditures like naval vessels, military equipment or manufacturing plants, businesses or governments may retrofit in order to reduce the need to replace a system entirely. Other retrofits may be due to changing codes or requirements, such as seismic retrofit which are designed strengthening older buildings in order to make them earthquake resistant.

roads built with water pervious materials to limit surface runoff

underground structure that disposes of unwanted water, most commonly storm water runoff, by dissipating it into the groundwater

type of subsurface wastewater disposal facility

thumb|upright=1.2|right|Asphalt and sandbag revetment with a geotextile filter

type of wastewater treatment system with a fixed bed of rocks or similar

system

flood control measure

preventive, company-specific environmental protection initiative

structure using sedimentation to remove matter from wastewater

collection, transport, and treatment of fecal sludge from pit latrines, septic tanks or other onsite sanitation systems

thumb|Pleurotus ostreatus (Oyster mushroom)|300x300px Mycoremediation (from ancient Greek (), meaning "fungus", and the suffix , in Latin meaning 'restoring balance') is a form of bioremediation in which fungi-based remediation methods are used to decontaminate the environment. Fungi have been proven to be a cheap, effective and environmentally sound way for removing a wide array of contaminants from damaged environments or wastewater. These contaminants include heavy metals, organic pollutants, textile dyes, leather tanning chemicals and wastewater, petroleum fuels, polycyclic aromatic hydroc

instrument that combines several climate elements to mesure evaporation

low tract of land

thumb|A bioretention cell, also called a rain garden, in the [[United States. It is designed to treat polluted stormwater runoff from an adjacent parking lot. Plants are in winter dormancy.]]

Electromethanogenesis is a form of electrofuel production where methane is produced by direct biological conversion of electrical current and carbon dioxide.

application of chemicals intended to kill or deter pests

chemical treatment procedures

thumb|Runoff from the vicinity flows into an adjacent bioswale Bioswales are channels designed to concentrate and convey stormwater runoff while removing debris and pollution. Bioswales can also be beneficial in recharging groundwater, reducing flooding and erosion, and creating a valuable habitat for pollinators.