Home somehow the big bucket of water covered with green algae,
The total shares of the water smell, but can not find a reason people frequently Naodu Zi … … This summer, as the essential home
Repeated public drinking fountains
. September 2, Consumer Protection Committee of Qingdao City, an integrated consumer complaints this summer, the overall situation of life, the city issued a consumer alert No. 10, to remind the public drinking fountains at home is the bacteria most likely to “nest.”
>>> Phenomenon of green water in fountains trouble
City, Mr. Liu is the fountain of the North “victims” one. One day in July, Mr. Liu found a big bucket of water at home is not normal, “pan-green light inside the water looks,” Mr. Liu and then to read, I actually found the barrel walls are covered with tiny green algae. Bottled water suppliers to determine this is not a problem with water is a problem with drinking fountains. When staff open the machine, it was found attached to large chunks of wall fountains visible mold, some Black, some dark green.
the public beginning in June, a feeling from the drinking water in a stock odor, then the family began to frequent Naodu Zi, 7-year-old daughter cried all day stomachache. “Once water to the master to deliver water, I said the water has taste, he would immediately open the dispenser, which found that the magnetic filter layer are all black, there is a thick layer of adhesive material.”
According to Consumer Protection Committee of Qingdao City, the data provided, this summer, drinking fountains, a large bucket of water and other water safety exception prominent complaints related to 10 times higher than last year.
>>> Investigate clean drinking sale
8 mid, Qingdao City Consumer Protection Committee on the fountain market a special investigation, and in the market
The water dispenser brand up to more than 500 species, few brands can provide after-sale cleaning services. “Drinking the market access threshold is very low, the market is relatively spread chaos over 500 brands in the most non-professional small factories, mainly by assembling parts, counterfeit, OEM, to ultra-low prices Selling Well, not whether cleaning, disinfection , sterilization and other problems. “Urban Consumer Protection Committee of the relevant responsible person said Wang Chau.
2, the reporter visited five-star, States United States
Shopping centers and other appliance learned some big brand water dispenser commitment “to provide cleaning services”, but the specific time of purchase also comes with only a few packs of detergent, while most brands are not washed after-sales service. Subsequently, the reporter has contacted several appliance cleaning company, and said the company only accepts
, Range hoods, central air conditioning and other large-scale cleaning operations, and drinking fountains are a small cleaning service, the company does not undertake.
>>> Question the high cost of professional cleaning services
Interview, Ningxia Road, a bottled water and bottled water station staff stone, said the company has been publicizing of the cleaning business, but the practice is difficult, “water to large, the staff busy, but the main cost or free of charge to customers the cost of cleaning is definitely a loss, but they can not accept people washing charges, so a long time in this business has become a ‘decoration’. “
Then they need to clean a fountain How much cost?
GOME Electrical Appliances
The fountain sales, said Ms Liu, simple to use disinfectant for the disinfection of drinking fountains, a cost of about 2 dollars, “This is just a simple rinse tank, the effect generally. A real professional cleaning is required on the machine an overall disinfection of all circulatory system, but the cost would be 20 yuan price, plus labor costs, estimated at 30 yuan down the would. “
>>> Reminded to use water dispensers, two points
Consumer Protection Committee of Qingdao City, said water dispenser is bacteria, viruses, bacteria and other microorganisms excellent breeding grounds, if not pay attention to keep clean and would be a stealth killer to human health. In response, City Consumer Protection Board warned consumers purchase and use of drinking fountains, two points: First, beware of heavy metal pollution, a number of low-cost water dispenser stainless steel liner material used in a very unstable, very easily lead to heavy metal content; second change the water every time, try to clean up their own, to avoid the water, trace elements, minerals accumulate the formation of insoluble particles, also easy to avoid the accumulation of scale within the body, bacteria. BOLA TANGKAS
Water Balz Jumbo Polymer Balls
These giant polymer water balls look like super jumbo orbit. They’re polymer balls that expand when placed in water. These polymer balls expand until they become huge water balls made of cross linked polymers.
Water Ballz Part 2 Invisible here!: http://www.youtube.com/watch?v=IPK2m0qRZx4
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Water Balls Time Lapse Video: https://www.youtube.com/watch?v=Tda_qGXFa-8
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Warning: Choking Hazard Small Part. Not for children under 3 years of age. Harmful And Dangerous If Swallowed! Keep Away From Children!
Get this Water Balz experiment and many others at http://www.incrediblescience.com Have a ball with this fun polymer science experiment! Watch in amazement as your polymer balls which starts out smaller than a small marble grows to the size of a racquetball when placed in water-all in less than a day! Comes in an array of vibrant colors that hold true, even when hydrated. They roll, and even though they do not bounce, they will explode when thrown or dropped! Drop the balls in water and imagine the endless possibilities as they grow before your eyes!
1) Learn about the incredible properties of polymers as you grow the “balls”.
2)Discuss hydrophilic properties and superabsorbent polymers.
3)Determine how fast evaporation will take place and then start the process again. 4)Hypothesize what will happen once the water evaporates from them.
5)Discuss color, light and classification and how these water absorbers can play a huge part in our environment.
6)Experiment with milk, vegetable oil, or salt water. and more…