The Dubai Boom's Underside: Sewage Woes
From the Wall Street Journal: http://online.wsj.com/article/SB1212...googlenews_wsj
This Persian Gulf sheikdom, in the middle of a massive building and tourism boom, has a big sewage problem. By one estimate, some $300 billion in new projects are going up in Dubai in the next 10 years -- including the world's tallest building and a man-made archipelago of luxury homes on islands shaped like palm trees. Every day, hundreds of tanker trucks line up for almost two miles at the three approaches to Dubai's treatment plant, to dump sewage. But Dubai's single, 30-year-old sewage-treatment plant isn't keeping up. Sewage output here is rising by 25% a year. That has officials in this city-state, one of seven emirates that make up the UAE, scrambling for innovative places to store the waste, or ways to put it to good use. <<snip>> |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by IndieG
(Post 6416987)
From the Wall Street Journal: http://online.wsj.com/article/SB1212...googlenews_wsj
<snip>> |
Re: The Dubai Boom's Underside: Sewage Woes
this is horrible, i've seen those lorries queuing up to get to the sewerage plant...it's surely only going to get worse?
MM, xx |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by Madam Medusa
(Post 6417352)
this is horrible, i've seen those lorries queuing up to get to the sewerage plant...it's surely only going to get worse?
MM, xx |
Re: The Dubai Boom's Underside: Sewage Woes
When you consider that developers aren't even under any compulsion to install proper storm drains - even though Dubai experiences torrential rains and subsequent flooding in winter - I wouldn't hold my breath.
Apart from when driving past public sprinklers, of course. |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by IndieG
(Post 6416987)
In the meantime, Mrs. Abdooli says some of the city's excess "tertiary-treated sewage effluent" is used to water the landscaping and public gardens that now dot much of this desert city. That is shorthand for treated sewage.
Secondary treated effluent also contains high concentrations of bacteria of all types, including pathogenic ones. Spray watering of grassed areas only results in abut a 3 log reduction in bacteria, whereas grass fed by an underground watering system is quite safe for kids to play on due to a 6 to 7 log reduction in the concentrations of bacteria, microbes, cysts etc. I for one hold my breath when passing areas being actively sprayed. :thumbdown: |
Re: The Dubai Boom's Underside: Sewage Woes
I rest my case about how bloody superficial Dubai really is.
|
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by MacScot
(Post 6417652)
The treated sewage effluent that is used for landscaped areas of Dubai is certainly not "tertiary-treated" sewage effluent as stated by Mrs. Abdooli and, most likely, has only received received secondary treatment (e.g., activated sludge process and final settlement to remove solids). Secondary treatment of sewage results in a reasonably oxidised effluent but a poorly nitrified. The latter is clearly discernible by the pungent smell (mostly reduced ammoniacal compounds) emanating from landscaped or grassed areas where this effluent is used for watering. To get rid of the smell, only tertiary treated effluent should be used.
Secondary treated effluent also contains high concentrations of bacteria of all types, including pathogenic ones. Spray watering of grassed areas only results in abut a 3 log reduction in bacteria, whereas grass fed by an underground watering system is quite safe for kids to play on due to a 6 to 7 log reduction in the concentrations of bacteria, microbes, cysts etc. I for one hold my breath when passing areas being actively sprayed. :thumbdown: MacScot, that wasn't pleasant - but I suspect it is something that had to be said - like at HH's office for example........ |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by The Dean
(Post 6418157)
For the first time since I discovered The Bored, a post has made me feel physically sick........
MacScot, that wasn't pleasant - but I suspect it is something that had to be said - like at HH's office for example........ |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by MacScot
(Post 6418263)
HH's office - what's that:confused:
|
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by MacScot
(Post 6417652)
The treated sewage effluent that is used for landscaped areas of Dubai is certainly not "tertiary-treated" sewage effluent as stated by Mrs. Abdooli and, most likely, has only received received secondary treatment (e.g., activated sludge process and final settlement to remove solids). Secondary treatment of sewage results in a reasonably oxidised effluent but a poorly nitrified. The latter is clearly discernible by the pungent smell (mostly reduced ammoniacal compounds) emanating from landscaped or grassed areas where this effluent is used for watering. To get rid of the smell, only tertiary treated effluent should be used.
Secondary treated effluent also contains high concentrations of bacteria of all types, including pathogenic ones. Spray watering of grassed areas only results in abut a 3 log reduction in bacteria, whereas grass fed by an underground watering system is quite safe for kids to play on due to a 6 to 7 log reduction in the concentrations of bacteria, microbes, cysts etc. I for one hold my breath when passing areas being actively sprayed. :thumbdown: How long before we have a cholera outbreak? N. |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by IndieG
(Post 6418424)
His Highness........
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Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by Madam Medusa
(Post 6417352)
this is horrible, i've seen those lorries queuing up to get to the sewerage plant...it's surely only going to get worse?
MM, xx |
Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by Spugsy
(Post 6421225)
aye its horrendous, a few weeks back there was a real wind in mirdiff at about 10pm and all you could smell was shit. It was appalling.
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Re: The Dubai Boom's Underside: Sewage Woes
Originally Posted by Norm_uk
(Post 6421132)
So essentially it's been strained and sieved then the "water" is pumped and sprayed out over the grass with lots of unpleasant bacteria and microbes being spread out around the place and likely up poor passing pedestrians noses?
How long before we have a cholera outbreak? N. Perhaps the powers to be are using tertiary treatment (I don't know). If so, then the sewage treatment works are probably overloaded as evidenced by the poor quality of spray irrigation waters applied (e.g. it smells). |
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