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Activated sludge, the Glossary

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.^[1]

79 relations: Activated carbon, Activated sludge model, Aerated lagoon, Aeration, Aerobic granular reactor, Aerobic granulation, Aerobic organism, Aerobic treatment system, Airstone, Ammonium, Amoeba, Anaerobic digestion, Aqueous Wastes from Petroleum and Petrochemical Plants, Axial-flow pump, Biochemical oxygen demand, Biological oxidizer, Biotic material, Canada, Chemical oxygen demand, Compost, Davyhulme Sewage Works, Denmark, Diffuser (sewage), Extended aeration, Floc (biofilm), Flocculation, Germany, Gilbert John Fowler, Gordonia (bacterium), Imperial Chemical Industries, Industrial wastewater treatment, International Water Association, Kilowatt-hour, List of wastewater treatment technologies, Massachusetts, Membrane bioreactor, Microorganism, Mixed liquor suspended solids, Mountain Empire Community College, Mucilage, Nereda, Nitrogen, Nutrient, Organic matter, Oxygen, Oxygen saturation, Peritrich, Phosphate, Pollution, Precipitation (chemistry), ... Expand index (29 more) »

Activated carbon

Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses.

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Activated sludge model

Activated sludge model is a generic name for a group of mathematical methods to model activated sludge systems. Activated sludge and activated sludge model are Sewerage.

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Aerated lagoon

An aerated lagoon (or aerated pond) is a simple wastewater treatment system consisting of a pond with artificial aeration to promote the biological oxidation of wastewaters.

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Aeration

Aeration (also called aerification or aeriation) is the process by which air is circulated through, mixed with or dissolved in a liquid or other substances that act as a fluid (such as soil).

See Activated sludge and Aeration

Aerobic granular reactor

Aerobic granular reactors (AGR) or Aerobic granular sludge (AGS) are a community of microbial organisms, typically around 0.5-3mm in diameter, that remove carbon, nitrogen, phosphorus and other pollutants in a single sludge system. Activated sludge and Aerobic granular reactor are environmental engineering.

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Aerobic granulation

The biological treatment of wastewater in the sewage treatment plant is often accomplished using conventional activated sludge systems. Activated sludge and Aerobic granulation are environmental engineering.

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Aerobic organism

An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment.

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Aerobic treatment system

An aerobic treatment system (ATS), often called an aerobic septic system, is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic process used in septic systems.

See Activated sludge and Aerobic treatment system

Airstone

An airstone, also called an aquarium bubbler, is a piece of aquarium furniture, traditionally a piece of limewood or porous stone, whose purpose is to gradually diffuse air into the tank, eliminating the noise and large bubbles of conventional air filtration systems, and providing other benefits to the health of the fish.

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Ammonium

Ammonium is a modified form of ammonia that has an extra hydrogen atom.

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Amoeba

An amoeba (less commonly spelled ameba or amœba;: amoebas (less commonly, amebas) or amoebae (amebae)), often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopods.

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Anaerobic digestion

Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. Activated sludge and Anaerobic digestion are environmental engineering and Sewerage.

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Aqueous Wastes from Petroleum and Petrochemical Plants

Aqueous Wastes from Petroleum and Petrochemical Plants is a book about the composition and treatment of the various wastewater streams produced in the hydrocarbon processing industries (i.e., oil refineries, petrochemical plants and natural gas processing plants).

See Activated sludge and Aqueous Wastes from Petroleum and Petrochemical Plants

Axial-flow pump

An axial-flow pump, or AFP, is a common type of pump that essentially consists of a propeller (an axial impeller) in a pipe.

See Activated sludge and Axial-flow pump

Biochemical oxygen demand

Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period.

See Activated sludge and Biochemical oxygen demand

Biological oxidizer

A biological oxidizer is a device that uses micro-organisms to treat wastewater and the volatile organic compounds produced by commercial and industrial operations. Activated sludge and biological oxidizer are environmental engineering.

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Biotic material

Biotic material or biological derived material is any material that originates from living organisms.

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Canada

Canada is a country in North America.

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Chemical oxygen demand

In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution.

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Compost

Compost is a mixture of ingredients used as plant fertilizer and to improve soil's physical, chemical, and biological properties.

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Davyhulme Sewage Works

Davyhulme Sewage Works is the main waste water treatment works for the city of Manchester, England, and one of the largest in Europe.

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Denmark

Denmark (Danmark) is a Nordic country in the south-central portion of Northern Europe.

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Diffuser (sewage)

An air diffuser or membrane diffuser is an aeration device typically in the shape of a disc, tube or plate, which is used to transfer air and with that oxygen into the sewage or industrial wastewater. Activated sludge and diffuser (sewage) are environmental engineering and Sewerage.

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Extended aeration

Extended aeration is a method of sewage treatment using modified activated sludge procedures. Activated sludge and Extended aeration are environmental engineering and Sewerage.

See Activated sludge and Extended aeration

Floc (biofilm)

A floc is a type of microbial aggregate that may be contrasted with biofilms and granules, or else considered a specialized type of biofilm.

See Activated sludge and Floc (biofilm)

Flocculation

In colloidal chemistry, flocculation is a process by which colloidal particles come out of suspension to sediment in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. Activated sludge and flocculation are Sewerage.

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Germany

Germany, officially the Federal Republic of Germany (FRG), is a country in Central Europe.

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Gilbert John Fowler

Gilbert John Fowler (23 January 1868 – 21 March 1953) was a British biochemist who worked on pollution, decomposition and sewage treatment in Britain and later in India where he established the first research laboratory in biochemistry at the Indian Institute of Science at Bangalore.

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Gordonia (bacterium)

Gordonia is a genus of gram-positive, aerobic, catalase-positive bacterium in the Actinomycetota, closely related to the Rhodococcus, Mycobacterium, Skermania, and Nocardia genera.

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Imperial Chemical Industries

Imperial Chemical Industries (ICI) was a British chemical company.

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Industrial wastewater treatment

Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. Activated sludge and Industrial wastewater treatment are Sewerage.

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International Water Association

The International Water Association (IWA) is a self-governing nonprofit organization and knowledge hub for the water sector, connecting water professionals and companies to find solutions to the world's water challenges.

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Kilowatt-hour

A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units which is the energy delivered by one kilowatt of power for one hour.

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List of wastewater treatment technologies

This page consists of a list of wastewater treatment technologies. Activated sludge and list of wastewater treatment technologies are environmental engineering and Sewerage.

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Massachusetts

Massachusetts (script), officially the Commonwealth of Massachusetts, is a state in the New England region of the Northeastern United States.

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Membrane bioreactor

Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. Activated sludge and membrane bioreactor are environmental engineering and Sewerage.

See Activated sludge and Membrane bioreactor

Microorganism

A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India. The scientific study of microorganisms began with their observation under the microscope in the 1670s by Anton van Leeuwenhoek.

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Mixed liquor suspended solids

Mixed liquor suspended solids (MLSS) is the concentration of suspended solids, in an aeration tank during the activated sludge process, which occurs during the treatment of waste water. Activated sludge and Mixed liquor suspended solids are Sewerage.

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Mountain Empire Community College is a public community college in unincorporated Wise County, Virginia, near Big Stone Gap.

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Mucilage

Mucilage is a thick gluey substance produced by nearly all plants and some microorganisms.

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Nereda

Nereda is a wastewater treatment technology invented by Mark van Loosdrecht of the Delft University of Technology in the Netherlands. Activated sludge and Nereda are Sewerage.

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Nitrogen

Nitrogen is a chemical element; it has symbol N and atomic number 7.

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Nutrient

A nutrient is a substance used by an organism to survive, grow and reproduce.

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Organic matter

Organic matter, organic material, or natural organic matter refers to the large source of carbon-based compounds found within natural and engineered, terrestrial, and aquatic environments.

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Oxygen

Oxygen is a chemical element; it has symbol O and atomic number 8.

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Oxygen saturation

Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium at the given temperature.

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Peritrich

The peritrichs (Latin: Peritrichia) are a large and distinctive group of ciliates.

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Phosphate

In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid.

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Pollution

Pollution is the introduction of contaminants into the natural environment that cause adverse change.

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Precipitation (chemistry)

In an aqueous solution, precipitation is the "sedimentation of a solid material (a precipitate) from a liquid solution".

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Pressure swing adsorption

Pressure swing adsorption (PSA) is a technique used to separate some gas species from a mixture of gases (typically air) under pressure according to the species' molecular characteristics and affinity for an adsorbent material.

See Activated sludge and Pressure swing adsorption

Protozoa

Protozoa (protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris.

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Redox

Redox (reduction–oxidation or oxidation–reduction) is a type of chemical reaction in which the oxidation states of the reactants change.

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Residence time

The residence time of a fluid parcel is the total time that the parcel has spent inside a control volume (e.g.: a chemical reactor, a lake, a human body). Activated sludge and residence time are environmental engineering.

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A rotating biological contactor or RBC is a biological fixed-film treatment process used in the secondary treatment of wastewater following primary treatment. Activated sludge and rotating biological contactor are environmental engineering.

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Rotifer

The rotifers (from the Latin rota, "wheel", and -fer, "bearing"), commonly called wheel animals or wheel animalcules, make up a phylum (Rotifera) of microscopic and near-microscopic pseudocoelomate animals.

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Sanitary sewer

A sanitary sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to a sewage treatment plant or disposal. Activated sludge and sanitary sewer are environmental engineering.

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Saprotrophic bacteria

Saprotrophic bacteria are bacteria that are typically soil-dwelling and utilize saprotrophic nutrition as their primary energy source.

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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. Activated sludge and Secondary treatment are environmental engineering and Sewerage.

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Sequencing batch reactor

Sequencing batch reactors (SBR) or sequential batch reactors are a type of activated sludge process for the treatment of wastewater. Activated sludge and Sequencing batch reactor are environmental engineering and Sewerage.

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Sewage

Sewage (or domestic sewage, domestic wastewater, municipal wastewater) is a type of wastewater that is produced by a community of people. Activated sludge and sewage are Sewerage.

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Sewage sludge

Sewage sludge is the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater. Activated sludge and sewage sludge are Sewerage.

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Sewage sludge treatment

Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Activated sludge and sewage sludge treatment are Sewerage.

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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. Activated sludge and sewage treatment are environmental engineering and Sewerage.

See Activated sludge and Sewage treatment

References

[1] https://en.wikipedia.org/wiki/Activated_sludge

Also known as Activated sludge process, Activated-Sludge Method, Activated-sludge effluent, Activated-sludge process, Oxidation ditch.

, Pressure swing adsorption, Protozoa, Redox, Residence time, Rotating biological contactor, Rotifer, Sanitary sewer, Saprotrophic bacteria, Secondary treatment, Sequencing batch reactor, Sewage, Sewage sludge, Sewage sludge treatment, Sewage treatment, Sludge, Sludge bulking, Sphaerotilus natans, Spirotrich, Submersible mixer, Thermal hydrolysis, Trickling filter, Tropical fish, United Kingdom of Great Britain and Ireland, University of Manchester, Vorticella, Wastewater, Wastewater treatment, Worcester, England, World War I.

Activated sludge, the Glossary

Table of Contents

References