sludge build-up

  • 31Aerobic granular reactor — is a type of waste treatment facility.OverviewWastewater treatment plants (WWTP) based on activated sludge often cover large surface areas, mainly caused by the large settling tanks. To be able to build compact WWTP’s biomass can be grown as… …

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  • 32Mercury regulation in the United States — is a set of laws and regulations limiting the maximum concentrations of mercury (Hg) that is permitted in air, water, soil, food and drugs. These laws and regulations are promulgated by U.S. Federal Agencies such as the Environmental Protection… …

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  • 33Snarl (Transformers) — Snarl is the name of several different fictional characters in the various Transformers universes.Transformers: Generation 1Transformers character name = Snarl caption = Snarl Dreamwave Art affiliation = Autobot subgroup = Dinobots Action Masters …

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  • 34Verso Paper Sartell Mill — The Sartell Paper Mill, officially the Verso Paper Sartell Mill, is a paper mill located in the city of Sartell in the U.S. state of Minnesota. The mill is owned and operated by Verso Paper.HistoryWatab Pulp and PaperThe original company, Watab… …

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  • 35List of Transformers cast members — Actors who have appeared in the Transformers TV show and/or film.English language ActorsA* Charles Adler , Triggerhappy, Duros, Vorath, Dirk Manis, Starscream * Norman Alden Kranix * Anthony Anderson Glen Whitmann * Jack Angel Astrotrain, Omega… …

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  • 36agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …

    Universalium

  • 37Thermal depolymerization — (TDP) is a process using hydrous pyrolysis for the reduction of complex organic materials (usually waste products of various sorts, often known as biomass and plastic) into light crude oil. It mimics the natural geological processes thought to be …

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  • 38Septic tank — A septic tank, the key component of a septic system, is a small scale sewage treatment system common in areas with no connection to main sewage pipes provided by private corporations or local governments. (Other components, typically mandated… …

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  • 39Reclaimed water — Reclaimed water, sometimes called recycled water, is former wastewater (sewage) that has been treated to remove solids and certain impurities, and then allowed to recharge the aquifer rather than being discharged to surface water. This recharging …

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  • 40Saab H engine — The Saab H engine is a redesign of the Saab B engine. Despite the name it is not an H engine, but a slanted inline 4. The H engine was introduced in 1981 in the Saab 900 and was also used in the Saab 99 from 1982 onwards and the Saab 90. It… …

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