Water purifier - cheap for everyone, Bali
TheBiologiques
Published on May 15, 2012
Water purifier by charcoal filter inside terracotta ( by www.bio-logiques.org Not profit organisation)
In french, you can see an article our web site ; www.bio-logiques.org/index.php…
When you think of oxygen, the first thing you might think of is taking a deep breath. But, at Southwest Airlines, our Maintenance and Engineering Team might just think about aircraft water system disinfection first when thinking about oxygen. We use a unique process using ozone gas to disinfect our onboard water system. This process uses electricity to create ozone that disinfects the entire water system before safely reverting back to oxygen.
The idea to purify Southwest’s water systems through ozonation came from an unlikely place — a California winery. The ozone disinfection process is one that large-scale wine makers have been using for years, but had not been used within the airline industry. What’s exciting about this process is that ozone quickly dissipates from the water and eliminates the need for flushing chlorine, or other chemicals, out of our water systems. The use of ozone also significantly reduces the time it takes to complete the disinfection process from several hours to less than one hour. After lots of research and proprietary Southwest Engineering design work, we were able to convert a reliable ozonation unit into an effective Southwest tool to keep our water system clean.
We hope you’ll enjoy this video where you’ll get a behind-the-scenes look at our unique water quality process!
Helen Zille speaks on Cape Town water crisis
SABC Digital News - Published on Jan 22, 2018
The hashtags, DayZero and WaterCrisis have been trending this week in reference to February the first, when taps in the Western Cape province are expected to run dry. Premier of the Western Cape, Helen Zille, was set to meet with the National Disaster Management team yesterday and she’s also reported to have written a letter to president Jacob Zuma, asking him to declare the water situation a national disaster. She joins us now from our SeaPoint studio.
Water crisis in Cape Town as ‘day zero’ approaches
Guardian News - Published on Feb 3, 2018
After years of severe drought, Cape Town officials are preparing to shut off mains water supplies to a million homes. Residents have also been asked to limit their use to 50 litres a day as ‘day zero’ approaches
Is Cape Town facing a future without water?
Al Jazeera English - Streamed live on Dec 20, 2017
May 18, 2018 is being called “Day Zero” in South Africa. By that day, the country’s second largest city is projected to be without water and its dams at catastrophic levels. So how did Cape Town reach this point?
South Africa is experiencing a major drought. 2017 was the driest year in decades, and the third successive year of poor rainfall. Dams have gone unreplenished, underground aquifers are tapped out, springs and boreholes are running dry. Calls by the mayor’s office to the city’s more than 4 million residents to cut water use to less than 87 litres per person have gone unheeded. Fines have been flouted. And water has already been shut down for several hours a day in areas outside the city center.
Climatologists have pointed to climate change as a possible factor. And future projections show a shift towards a drier climate. Some activists even say the water crisis is political. They blame poor cooperation and coordination between the African National Congress ruling party, and the local and provincial government of the Western Cape run by the Democratic Alliance. Western Cape government officials say appeals to declare the province a disaster zone went unheeded by the ANC for months.
But a recent report by the South African Water Caucus found financial mismanagement and corruption in the local Department of Water and Sanitation, and that the city responded to warning signals too late.
On Wednesday we’ll take a look at the debate around the root of the crisis, and how Cape Town is planning for the near future. Join us at 1930GMT.
Cape Town Crisis Worsens, Water Rationing Put In Place
NDTV - Published on Feb 2, 2018
Water crisis continues to grip Cape Town, which is set to become the first major world metropolitan to run out of water if stringent water measures that have been put in place from today at only 50 litres of water per person per day come into effect. The city is desperate to avoid what is called day zero, or the day taps will run dry and 4 million people will have to stand in lines to get just 25 litres of water per person per day.
NDTV is one of the leaders in the production and broadcasting of un-biased and comprehensive news and entertainment programmes in India and abroad. NDTV delivers reliable information across all platforms: TV, Internet and Mobile.
American Water College
Published on Mar 26, 2012
americanwatercollege.org
This question comes from the California Wastewater grade 3 certification exam sample questions that can be found here: www.swrcb.ca.gov/water_issues/…
The problem reads:
In an attempt to correct a filamentous growth in an activated sludge process, you want to inject chlorine into the RAS flow stream at the dosage of 2.5 pounds of chlorine per 1000 pounds of return activated sludge suspended solids. Show the calculations to find the proper chlorinator feed setting (in pounds of chlorine per day), given the following
information:
Average Plant Flow Rate 9.0 MGD - MLSS Conc. 2850 mg/L
RAS Flow Rate 3.3 MGD - MLVSS Conc. 2600 mg/L
WAS Flow Rate to DAF 1.2 MGD - RAS Conc. 8500 mg
“Ever since she was a little girl, Sabina walked 4 hours per day to get water
World Vision journalist Kari Costanza walks a mile in Sabina’s shoes in rural Africa, experiencing her daily journey to retrieve clean water. ________________________________
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Character count: 7074 | Duration in seconds:807 | Characters per second: 8.77
this is the story of Sabina Sabina is much like me we are both mothers who work hard taking care of our families but there’s one big difference between Sabina and me since the age of seven Sabina has gone to the river nearly every day to fetch water I stayed with Sabina for 24 hours to watch how she used her time and how she used water I watched as her day began at sunrise and throughout the day as she cared for her husband Jacob a farmer who raised his livestock I watched as she mothered her children including her new baby I saw how water was part of every aspect of Sabinas day and how if she wasn’t using water she was walking to get it when that David AVI a four mile round-trip walk to a dirty river where she scoops water from a hole twice a day with her best friend Christina and I realized I couldn’t truly understand what it was like to walk and Sabina shoes unless I did it myself no it’s light right now maybe later it was very heavy this fence is just one of the many obstacles that the women face as they’re going to the river that’s the other obstacles our forms are everywhere they’re above us they’re below us step on thorns my hair gets caught in thorns and the water itself is an obstacle it’s an obstacle to a girl’s future because they have to get water all the time they’re not getting education they’re going to the river look there’s what there’s a container there okay it looks like somebody got water from here yeah geez that thing is full water is not just scarce here it’s really really yucky people come to the water source we’re right next to just because it’s so much easier to get water from here than to go all the way to the river but this kind of water is just a breeding ground for typhoid and cholera and waterborne diseases that cause diarrhea in fact just last night Sabina and Jacob had to take the baby to the health clinic Jude fever and then she vomited and had diarrhea every 10 minutes she had to have an IV for 24 hours okay I got it neither rock in my shoe the closer the closer I get to the river the more nervous I get because I don’t know if I’m gonna be able to carry this water this could be extremely embarrassing okay and there’s well oh my goodness we just got the go-ahead to the river Mary ran ahead to warn the women who are bathing there here goes nothing it’s ten after three we left at ten after two it’s taken us an hour to get here the water is today a bit browner than the other day we were here so we need to scoop another hole to get water kay you show me and I’ll do it okay it looks pretty Brown make the hole bigger with our hands okay so now we’re just getting this dirty water out of the hole that we dug oopsie we had a little landfill that incident here sorry that was my father when I was in a spelling bee I lost on the word arduous I’m still not sure how to spell it but now I know what it means I know this water is not good it looks okay but it’s not okay the little health clinic we went to today average is ten kids a day and this water is a big part of the reason they go so we brought a scale along so we can weigh these it’s so happy can you read the scale 57 for the big 157 pounds and the little one oh it’s so light 15 pounds for the little one so 57 plus 13 is 70 pounds yeah so now for the hard part Christina and Sabina are going home to me to put this on my back and carry it the two miles home but it was awful and the worst part of it is I have a huge audience watching me okay this is I gotta say a little prayer first okay this to the side thank to the knees beneath then up okay I can’t really get to the need this is too heavy to really get to the knees oh okay come on knees yeah okay then the up part so I get up now oh I feel like a Russian weightlifter mm-hmm all right then what do we do we put that one on here hey that came in more than a lakh yeah oh yeah yep that’s 70 pounds its 355 and I’ve just started and I’m already tired the straps are digging into my shoulders I think this would be the longest hour of my life I’ll just stand here for just a second just a second I’ll just rest for one second I know we’re not to the resting place yet I can do this I can do this we can do this I can’t go to the dentist but I can do this okay let’s go oh one thing the lady said to me is they hate how they get back aches when they do this they say the pain just builds and builds as they go and go and it takes a while for their back to stop aching when they get home I can feel it I can feel my back aching oops except we just started thank you so much Christina got me some kindling to use as a walking stick which is nice feel like Moses now with the Red Sea on my back Sabina makes this trip twice a day she uses about 13 gallons a day that’s for everything cooking cleaning drinking bathing and so in this trip I’m carrying half of the water she was today one of the most poignant stories Sabina told me was how she had seen running water once in her life was three years ago it was in place called laylan which has water it has Springs and people have water right in their yards and she went from house to house to see this incredible sight this water that came right from a tap that she didn’t have to get from the river and she said I never knew that there were places that weren’t like this and once I was there I didn’t want to come back I’m Sabina about her dreams her children it would be well yet even on and her dream is that they would all get an education the education she never got because she had to fetch water and then I asked her what her dream for herself is and she said I just like to be able to take a bath at my house know the game I have to go across the gate because there’s storm brushes on either side and as I’m going across the gate I’m remembering House of Mina went across this gate every day she was pregnant including the day she gave birth if she can do it nine months pregnant I can do it at forty seven maybe Robin no no what I can do this oh ouch hey oh yeah I can get up there right there oh my foot doesn’t really move like that when you done okay then then what do I do okay that this leg has to oh yeah okay then what getting down I’ve always thought about water in terms of disease how if you don’t have water or if you have bad water you get sick and you can die but I have a new understanding of water now it’s not just about disease if you don’t have water it robbed you of time it robs you of education Sabina didn’t get to go to school and now because she has to go for hours every day to get this water she doesn’t have the time that she wants to spend with her family and do the things that she actually wants to do like plant a kitchen garden and that doesn’t seem too much to ask to me so my wish for Sabina today is that water will come close to her so she won’t be chained to that river anymore and she’ll get back the time that she deserves and needs to have a full life would you like some water Gary Ghana dog Regan and Fanning Ali Ali no gimme gana Sabha yog okay League an answer on okay Regan and polygon on
Siabatou Sanneh of Gambia walked in the Paris Marathon with a bucket of water on her head to raise awareness about the struggles to attain clean drinking water in parts of Africa
Water for Africa’ in conjunction with Ogilvy &Mather, Paris has been awarded 5 CANNES Lions, including two ‘Gold’s’, at the Cannes Lions Festival of Creativity 2015. They took home Two GOLD’s, one Silver and two Bronze for their amazing campaign, ‘The Marathon Walker’ with Water for Africa, which saw a woman from Gambia, Saibatou Sanneh symbolically take part in the 42km Paris Marathon with 20kg of water on her head, a distance women walk in Africa every day to fetch water for their families. The full documentary depicting this beautiful story will be released this year. www.themarthonwalker.com
Water For People takes a look at the effects of the global water crisis on women and girls in developing countries. On average, women and girls carry 40 pounds of water 3.5 miles every day, hindering their opportunity to work or attend school, and continuing the cycle of poverty.
Character count: 2080 | Duration in seconds:190 | Characters per second: 10.95
when animals move toward water it’s one of nature’s great phenomena part of the eternal cycle of seasons for people in the developing world the same act can involve drudgery difficulty and miles of walking to and from a water source as primitive as a hand-dug well then waiting hours for a bucket of mud coloured liquid to percolate up slowly from the earth water that may well be contaminated though still welcomed by parched throats at home in virtually all developing countries finding caring and managing water is women’s work typically women and children can spend up to two-thirds of their waking hours hauling water the fill containers often weigh as much as 45 pounds the effort can consume 25 percent of a woman’s daily caloric intake the heavy weight creates long-term joint pain the strain on a woman’s hip and pelvic area can cause difficulties during pregnancy and the contact with contaminated water exposes women to a greater risk of disease finding and hauling water excludes them from education income generation and cultural and political activities without water toilets and privacy girls often drop out of school when they reach puberty it’s part of the reason why every 2 out of 3 illiterate people are women and why women make up 70% of the world’s poor this gender bias effectively removes women from life outside the home and family but it’s a fate that is not inevitable access to safe water near home can transform a woman’s life and the life of her children by reducing the time and resources spent hauling water access to adequate sanitation can give a woman privacy convenience safety and a chance for improved health there is an old saying in rural Indian villages that speaks to the enduring connection between women and water let your husband die it says but the earthen part of water should not be broken with your interest and support we can help women move from a life of illness and lost opportunities to a far more positive future for more information on our work to improve access to safe water and sanitation call us now or visit our website
Flow rate and operation of slow sand filter explained along with gradiation of fine sand and gravel below the source water.
Flow rates of 0.015-0.15 gpm/ ft^2 expected for typical performance with entry water of < 10 NTU.. Two day period of establishing Schmutzdecke Algal layer on the surface of the slow sand filter is explained and how that period sends water passing though back to the waste water well rather than stored in the clearwell.
Shows use of sensor and automatic safety features.
Will treat murky water.
Published on Feb 17, 2010
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