Environmental engineering

indicator: ratio that describes how efficiently a computer data center uses energy; specifically, how much energy is used by the computing equipment (in contrast to cooling and other overhead)

rainwater harvesting technique

thumb|right|Wastewater is considered effluent as it is released to surface water. Effluent is wastewater from sewers or industrial outfalls that flows directly into surface waters, either untreated or after being treated at a facility. The term has slightly different meanings in certain contexts, and may contain various pollutants depending on the source.

EPANET (Environmental Protection Agency Network Evaluation Tool) is a public domain, water distribution system modeling software package developed by the United States Environmental Protection Agency's (EPA) Water Supply and Water Resources Division. It performs extended-period simulation of hydraulic and water-quality behavior within pressurized pipe networks and is designed to be "a research tool that improves our understanding of the movement and fate of drinking-water constituents within distribution systems". EPANET first appeared in 1993.

porous concrete

designed to reduce the potential impact of development

project to interlink rivers of India

perimeter of a cross sectional area that is wet

Empirical model for microorganisms growth

erosion of sediment near bridge foundations by water

sewer which uses the same pipes for both stormwater and sanitary flows

in aquariums or fish farms

industrial processing tank for the treatment of wastewater

EU strategy for biodiversity

thumb|Structure made with plane trees for the Baden-Württemberg State Horticultural Show in Nagold Baubotanik is a building method in which architectural structures are created through the interaction of technical joints and plant growth. The term entails the practice of designing and building living structures using living plants. In this regard, living and non-living elements are intertwined in such a way that they grow together into plant-technical composite structures.

work to improve the environmental health of a river or stream

Desert irrigation by floodwater dam

measures to avoid, minimise, or compensate for adverse impacts on the environment

water quality modelling expression

Paludiculture is wet agriculture and forestry on peatlands. Paludiculture combines the reduction of greenhouse gas emissions from drained peatlands through rewetting with continued land use and biomass production under wet conditions. "Paludi" comes from the Latin "palus" meaning "swamp, morass" and "paludiculture" as a concept was developed at Greifswald University. Paludiculture is a sustainable alternative to drainage-based agriculture, intended to maintain carbon storage in peatlands. This differentiates paludiculture from agriculture like rice paddies, which involve draining, and therefor

conservation-oriented land use planning

plant to process recyclates

pipeline or tunnel that discharges municipal or industrial wastewater, stormwater, combined sewer overflows, cooling water, or brine effluents from water desalination plants to the sea

biological process for wastewater treatment

in water treatment, addition of compounds that promote the clumping of fine floc into larger floc so that they can be more easily separated from the water

thumb|300px|Pumpkin seedlings planted out on windrows of composted biosolids Biosolids are solid organic matter recovered from a sewage treatment process and used as fertilizer. In the past, it was common for farmers to use animal manure to improve their soil fertility. In the 1920s, the farming community began also to use sewage sludge from local wastewater treatment plants. Scientific research over many years has confirmed that these biosolids contain similar nutrients to those in animal manures. Biosolids that are used as fertilizer in farming are usually treated to help to prevent disease-

Body of surface water in a channel with surrounding undeveloped land dominated by grasses

formerly natural waterway flowing through heavily populated area

engineering discipline

treatment process for wastewater or sewage

wastewater treatment process

Earthmoving technique to minimize labor

form of engineered sump or percolation pond

Electrohydrogenesis or biocatalyzed electrolysis is the name given to a process for generating hydrogen gas from organic matter being decomposed by bacteria. This process uses a modified fuel cell to contain the organic matter and water. A small amount, 0.2–0.8 V of electricity is used, the original article reports an overall energy efficiency of 288% can be achieved (this is computed relative to the amount of electricity used, waste heat lowers the overall efficiency). This work was reported by Cheng and Logan.

thumb|A clean-in-place unit on display at the World of Coca-Cola in [[Atlanta]] Clean-in-place (CIP) is an automated method of cleaning the interior surfaces of pipes, vessels, equipment, filters and associated fittings, without major disassembly. CIP is commonly used for equipment such as piping, tanks, and fillers. CIP employs turbulent flow through piping, and/or spray balls for tanks or vessels. In some cases, CIP can also be accomplished with fill, soak and agitate.

conversion of organic substrate to biohydrogen

Living Machine is a trademark and brand name for a patented form of ecological wastewater treatment.

Biomanipulation is the deliberate alteration of an ecosystem by adding or removing species, especially predators.

filtration systems that use a moving belt to separate solids from liquids

measurement of ambient electromagnetic field

Harmful effects of molds

infrastructure to carry potable water from treatment plant to consumers