Fettberg

Ett fettberg är stelnad klump av fett, sanitetsprodukter, våtservetter och liknande föremål som återfinns i kloaksystem men inte nedbryts på samma sätt som exempelvis toalettpapper. Fettberg (engelska fatberg) är den formella benämningen som används av myndigheterna i exempelvis Londons kloaksystem.^[1]^[2]

Fettberg utgör ett problem för flödet i kloaksystem eftersom de tenderar att korka igen ledningarna, men kan potentiellt också användas som bränsle, såsom biogas.^[3]

Kända exempel

6 augusti 2013: Ett fettberg i busstorlek bestående av matfett och våtservetter hittades under London Road i Kingston upon Thames.^[4]^[5]
1 september 2014: En samling av avskräde, fett, våtservetter matrester, tennisbollar och plankor i storlek som en Boeing 747 återfanns och rensades av reningsarbetare under en väg i Shepherd's Bush i västra London.^[6]^[7]
3 september 2014: Kloaksystemet under Melbourne, Australien korkades igen av en massa av fett, flott och avskräde.^[8]
Januari 2015: Som en del i en kampanj mot kloakblockeringar släppte den walesiska vattenmyndigheten en video visande ett fettberg i Cardiff.^[9]
April 2015: Ett 40 meter långt fettberg togs bort från underjorden i London-stadsdelen Chelsea. Skadorna fettberget hade åsamkat beräknades uppgå till 400 000£ och arbetet med att få bort fettberget tog över två månader.^[10]
Januari 2016: Kloakpumpstationen i Eleebana skadades som en följd av blockage från ett fettberg nära Newcastle i New South Wales, Australien. Blockaget "vägde ungefär ett ton och tog fyra timmar att ta bort med hjälp av en lyftkran. ^[11]

Källor

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, Fatberg, 8 maj 2017.

^ Williams, Rob (5 augusti 2013). ”Britain's biggest ever 'fatberg' - the size of a bus and weighing 15 tonnes - found in London drain”. The Independent. http://www.independent.co.uk/news/uk/home-news/britains-biggest-ever-fatberg--the-size-of-a-bus-and-weighing-15-tonnes--found-in-london-drain-8746672.html.
^ Edwards, Jim. ”Gross Photos Show Sewer Workers Battling A 'Fatberg' The Size Of A Boeing 747 Under London”. Yahoo/Business Insider. https://finance.yahoo.com/news/insane-photos-shows-sewer-workers-161632806.html. Läst 1 september 2014.
^ ”Thames Water and 2OC in £200m deal to turn 'fatbergs' into energy”. waterbriefing.org. 8 april 2013. http://www.waterbriefing.org/home/company-news/item/7231-thames-water-and-2oc-in-%C2%A3200m-deal-to-turn-%E2%80%98fatbergs%E2%80%99-into-energy. Läst 2 juni 2013.
^ 2013-08-06, Britain's biggest 'fatberg' removed from London sewer, BBC
^ Flegenheimer, Matt (13 mars 2015). ”The Wet Wipes Box Says Flush, but the New York City Sewer System Says Don’t”. New York Times. https://www.nytimes.com/2015/03/15/nyregion/the-wet-wipes-box-says-flush-but-the-new-york-city-sewer-system-says-dont.html. Läst 13 mars 2015. ”The consummate cautionary tale is that of London, where in 2013 a collection of wipes, congealed cooking oil and other materials totaled 15 tons, according to Thames Water, the utility company that removed it. It was known, like some previous occurrences, as the fatberg. “We reckon it has to be the biggest such berg in British history,” Gordon Hailwood, an official with Thames Water, said at the time.”
^ 2014-09-01, Fatberg the size of a jumbo jet strikes central London: Eighty-metre mass of congealed fat and wet wipes under the streets of Shepherd's Bush took four DAYS to break up, Daily Mail UK
^ 2014-09-01, Enormous 'fatberg' the size of an AEROPLANE found blocking sewers in London, Mirror UK
^ 2014-09-03, Melbourne’s sewerage system clogged by fatberg, warns Yarra Valley Water Arkiverad 12 september 2014 hämtat från the Wayback Machine., News.com.au
^ ”'Fatberg' found blocking Cardiff sewer”. BBC News. 10 februari 2015. http://www.bbc.co.uk/news/uk-wales-31367573.
^ Ratclife, Rebecca (21 april 2015). ”10-tonne fatberg removed from west London sewer | UK news | The Guardian”. theguardian.com. https://www.theguardian.com/uk-news/2015/apr/21/huge-10-ton-fatberg-removed-chelsea-sewer-london. Läst 21 april 2015.
^ Cox, Dan (25 februari 2016). ”Wet wipes blockage weighing a tonne pulled out of sewer pipe near Newcastle”. 1233 ABC Newcastle. http://www.abc.net.au/news/2016-02-25/monster-wet-wipes-blockage-pulled-out-of-sewer-pipe/7199230.

[1] Williams, Rob (5 augusti 2013). ”Britain's biggest ever 'fatberg' - the size of a bus and weighing 15 tonnes - found in London drain”. The Independent. http://www.independent.co.uk/news/uk/home-news/britains-biggest-ever-fatberg--the-size-of-a-bus-and-weighing-15-tonnes--found-in-london-drain-8746672.html.

[2] Edwards, Jim. ”Gross Photos Show Sewer Workers Battling A 'Fatberg' The Size Of A Boeing 747 Under London”. Yahoo/Business Insider. https://finance.yahoo.com/news/insane-photos-shows-sewer-workers-161632806.html. Läst 1 september 2014.

[3] ”Thames Water and 2OC in £200m deal to turn 'fatbergs' into energy”. waterbriefing.org. 8 april 2013. http://www.waterbriefing.org/home/company-news/item/7231-thames-water-and-2oc-in-%C2%A3200m-deal-to-turn-%E2%80%98fatbergs%E2%80%99-into-energy. Läst 2 juni 2013.

[4] 2013-08-06, Britain's biggest 'fatberg' removed from London sewer, BBC

[5] Flegenheimer, Matt (13 mars 2015). ”The Wet Wipes Box Says Flush, but the New York City Sewer System Says Don’t”. New York Times. https://www.nytimes.com/2015/03/15/nyregion/the-wet-wipes-box-says-flush-but-the-new-york-city-sewer-system-says-dont.html. Läst 13 mars 2015. ”The consummate cautionary tale is that of London, where in 2013 a collection of wipes, congealed cooking oil and other materials totaled 15 tons, according to Thames Water, the utility company that removed it. It was known, like some previous occurrences, as the fatberg. “We reckon it has to be the biggest such berg in British history,” Gordon Hailwood, an official with Thames Water, said at the time.”

[6] 2014-09-01, Fatberg the size of a jumbo jet strikes central London: Eighty-metre mass of congealed fat and wet wipes under the streets of Shepherd's Bush took four DAYS to break up, Daily Mail UK

[7] 2014-09-01, Enormous 'fatberg' the size of an AEROPLANE found blocking sewers in London, Mirror UK

[8] 2014-09-03, Melbourne’s sewerage system clogged by fatberg, warns Yarra Valley Water Arkiverad 12 september 2014 hämtat från the Wayback Machine., News.com.au

[9] ”'Fatberg' found blocking Cardiff sewer”. BBC News. 10 februari 2015. http://www.bbc.co.uk/news/uk-wales-31367573.

[10] Ratclife, Rebecca (21 april 2015). ”10-tonne fatberg removed from west London sewer | UK news | The Guardian”. theguardian.com. https://www.theguardian.com/uk-news/2015/apr/21/huge-10-ton-fatberg-removed-chelsea-sewer-london. Läst 21 april 2015.

[11] Cox, Dan (25 februari 2016). ”Wet wipes blockage weighing a tonne pulled out of sewer pipe near Newcastle”. 1233 ABC Newcastle. http://www.abc.net.au/news/2016-02-25/monster-wet-wipes-blockage-pulled-out-of-sewer-pipe/7199230.

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