Demand for water reuse membranes growing

WARRENDALE, PA – As the popularity of recycled water continues to grow, the demand for membrane treatment technology for reuse applications is also increasing, according to a recent report by Siemens Water Technologies.

In the report, Chuck Gordon, executive vice president of Siemens Water Technologies Systems Unit, said membranes which have traditionally been used in drinking water applications are now "increasingly being used for water reuse in areas where potable water is scarce or in industries that need a reliable, high quality water source."

Membranes offer several advantages over conventional water recycling systems, including a lower life cycle cost, a smaller system footprint and greater removal of bacteria such as Cryptosporidium and Giardia, according to the release.

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Battle over bottled water

Bottled water is increasingly the top choice of young people who have grown up unscrewing a cap instead of opening a tap for drinking water.

That’s a misguided, costly and wasteful attitude, says Port Coquitlam Mayor Scott Young, who chairs the Greater Vancouver Regional District’s water committee.

“Many of us complain about the price of gasoline,” he said. “But on a litre-to-litre basis you’re paying more for bottled water. And it’s completely unnecessary.”

The GVRD is planning a campaign to promote tap water and swim upstream against what has been a triumph of marketing for water bottlers.

Canadian sales of bottled water climbed 17 per cent last year.

Critics say the bottled water industry is profiting by subtly fostering the belief tap water is unsafe or undesirable.

Young said many young people he’s talked to see bottled water as the main source of drinking water.

“We find that somewhat troubling,” he said. “We have the very best drinking water in the world.”

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Davenport preparing for another boil order

Davenport's 200 residents will be under another boil order this winter, as the North Coast community waits for state loans and grants to come through to improve its water system.

But county supervisors could come to the rescue for a second year, as the board today will consider providing bottled water to homes, businesses and the community's one school to get them through the rainy season.

"It seems to me absolutely clear that we have to continue providing drinking water," said county Supervisor Mardi Wormhoudt, whose district includes the former whaling village. "You can't expect a whole town to somehow be told it's going to boil its water and that's that."

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Pool closed

Another pool closed.

Falcon Ridge Middle School in Apple Valley will not use its swimming pool for the next three weeks because of an earlier outbreak of cryptosporidium. While swim teams have used the pool since re-opening, the school's physical education classes will not use the pools as a precautionary measure, principal Noel Mehus said.

From http://www.twincities.com/mld/twincities/living/15775863.htm

Six school pools closed after students sickened


"School officials closed six middle-school pools in the Rosemount-Apple Valley-Eagan School District on Tuesday, pending a Minnesota Department of Health investigation into a parasitic infection that has sickened students.

Two members of a community swim team have been confirmed with cryptosporidiosis recently and another 16 students in elementary and middle school have reported illnesses that indicate infections, said Dr. Joni Scheftel, an epidemiologist at the Health Department.

Symptoms can include diarrhea, cramps, nausea, vomiting, fever, fatigue and weight loss, and can last as long as two weeks.

The illnesses, which began about Sept. 28, were reported late Monday afternoon to the Health Department, Scheftel said.

Swim team members used various pools, but it was too early to identify the source of the infections, she said.

The department had urged the closing of pools at Falcon Ridge, Blackhawk and Dakota Hills middle schools, but school officials closed all six used by middle-school students, she said."

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S.D. officials warn about intestinal illness

Pierre - A significant number of outbreaks of cryptosporidiosis, an intestinal illness causing stomach cramps and diarrhea, has health officials urging South Dakotans to practice good personal hygiene. Through September, 86 cases have been reported in 23 South Dakota counties, compared to 31 cases for all of last year.

"Good hand-washing is the single most important thing people can to do to prevent the spread of not only cryptosporidiosis, but other diarrheal illnesses as well," said Secretary of Health Doneen Hollingsworth.

Hand-washing is especially important after using the toilet, changing diapers, gardening, handling pets or other animals, caring for infected persons, and before handling or eating food.

Cryptosporidiosis is caused by a microscopic parasite called cryptosporidium. People become infected by drinking water or eating food contaminated by the parasite. Infection is also transmitted through direct contact with contaminated surfaces or stools of infected animals or humans.

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Microbes, as a target

Scientists are developing biosensors that can find and identify bacteria, such as E. coli, faster and cheaper — maybe even at home.

OUR world is teeming with tiny bacteria, most of them utterly safe for us to swallow. A few, however, are anything but — such as E. coli O157:H7, at the root of the recent spinach illness outbreak; or salmonella, which is the reason we are told to avoid raw eggs; or Listeria monocytogenes, a troublesome microbe with a fondness for growing on soft cheese and luncheon meats.

"Washing produce with water is one of the most effective methods of removing unwanted bacteria," says food microbiologist Scott Martin of the University of Illinois at Urbana-Champaign. "The problem is you can't remove all of them."

To improve another line of defense, microbiologists and bioengineers are working hard to develop biosensors that can detect and identify different species of bacteria in food.

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Health Authority asks to protect water supply

Wednesday, 04 October 2006
BY ANDRU MCCRACKEN
Robson Valley Times

The Northern Health Authority is asking Valemount to upgrade its water system to be able to guard against cryptosporidium. Bruce Gaunt, the man in charge of drinking water with the health authority, wants the village to take the next step in water treatment.

“Despite the good quality of the water source, almost firsthand from the mountain, there is a risk of waterborne protozoa. Giardia is one that has been well identified. There is another one called cryptosporidium,” said Gaunt.

Gaunt said that Valemount suffered an outbreak of giardia in 1996. However the present system doesn’t guard against cryptosporidium.

He said that Valemount has done some work in preparation for the outbreak, now he’s asking them to take the next step.

Cryptosporidium is resistant to chlorination and it is only in recent years that there are treatments that can eliminate it.

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