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Drinking water pipes full of 'good' bacteria

04:43 PM | 31 Dec, 2015
Drinking water pipes full of 'good' bacteria
ISLAMABAD (Online) - Swedish researchers say drinking water pipes and water treatment plants host an ecosystem of "good bacteria" that help purify the water.

Thousands of species of beneficial bacteria form a thin coating called a biofilm in water treatment plants and on the inside of water pipes. These bacteria play a much greater role in providing clean drinking water than previously thought, the researchers explained.

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"A previously completely unknown ecosystem has revealed itself to us. Formerly, you could hardly see any bacteria at all and now, thanks to techniques such as massive DNA sequencing and flow cytometry, we suddenly see eighty thousand bacteria per millilitre in drinking water," said Catherine Paul, an applied microbiology and water resources engineering researcher at Lund University.

The presence of good bacteria in drinking water systems is "similar to what happens in our bodies. Our intestines are full of bacteria, and most the time when we are healthy, they help us digest our food and fight illness," Paul said in a university news release.

The study, published recently in the journal Microbes and Environments, could prove useful when water systems are updated and improved.

"The hope is that we eventually may be able to control the composition and quality of water in the water supply to steer the growth of 'good' bacteria that can help purify the water even more efficiently than today," Paul said.

The writer is a member of the staff.

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Currency Rates in Pakistan Today - Pakistani rupee to US Dollar, Euro, Pound, Dirham, and Riyal - 19 April 2024

Pakistani currency saw minor adjustment against global currencies on April 19, 2024. US dollar was being quoted at 277.4 for buying and 280.4 for selling.

Euro comes down to 293 for buying and 296 for selling while British Pound stands at 342.25 for buying, and 345.65 for selling.

UAE Dirham AED was at 75.2 and Saudi Riyal's new rates was at 73.30.

Today’s currency exchange rates in Pakistan - 19 April 2024

Currency Symbol Buying Selling
US Dollar ‎USD 277.4 280.4
Euro EUR 293 296
UK Pound Sterling GBP 342.25 345.65
U.A.E Dirham AED 75.2 75.9
Saudi Riyal SAR 73.3 74.05
Australian Dollar AUD 181 182.8
Bahrain Dinar BHD 740.09 748.09
Canadian Dollar CAD 201 203
China Yuan CNY 38.44 38.84
Danish Krone DKK 39.69 40.09
Hong Kong Dollar HKD 35.53 35.88
Indian Rupee INR 3.33 3.44
Japanese Yen JPY 1.86 1.94
Kuwaiti Dinar KWD 902.64 911.64
Malaysian Ringgit MYR 58.08 58.68
New Zealand Dollar NZD 164.22 166.22
Norwegians Krone NOK 25.31 25.61
Omani Riyal OMR 722.87 730.87
Qatari Riyal ‎QAR 76.45 77.15
Singapore Dollar SGD 204.5 206.5
Swedish Korona SEK 25.31 25.61
Swiss Franc CHF 305.08 307.58
Thai Bhat THB 7.56 7.71

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