Additional resources to learn more.
The HDC device Naturally helps stabilize the ph at 7.4, the optimal ph for maximum chlorine effectiveness.
“This study tells us two things: The first is that salt generators will cause the pH in a pool to rise quickly. The second is that once-a-week testing and adjustment is not enough to maintain proper pH levels…”
Effective degradation of oil pollutants in water by hydrodynamic cavitation combined with electrocatalytic membrane
“Hydrodynamic cavitation (HC) and electrocatalytic membrane (ECM) can be used in the oxidative degradation of oil pollutants, and a combined method with both techniques can improve the overall degradation efficiency. The results of this study show that HC could promote the dispersion and dissolution of oil in water at 35°C with an inlet pressure of 0.30 MPa and cavitation time of 2 h…”
Pollutant and Microorganism Removal From Water by Hydrodynamic Cavitation
“Hydrodynamic cavitation can effectively remove organic pollutants and microorganisms from water. Organic compound degradation and water disinfection removal rate is related to reaction time and operating temperature. Removal rate can be improved by increasing the reaction time or raising the operating temperature. Under our experimental conditions, the removal rate of colority, COD and petroleum pollutants was 80.0%, 72.13% and 70.00%, respectively…”
FQ LAB REPORT
The HDC Products Whole House Water Purification System has been tested from a third party lab regarding Iron and hardness reduction with water passing through the System. This report shows a reduction from 2.09 PPM of iron entering the system and only 0.041 PPM of iron exiting the system. Please remember that even if you only use bottled water for cooking and drinking you consume on average of 5 ounces of the water entering your home when you take a shower and the iron with enter your bloodstream. The hardness totals went from 343 down to 138.
Indoor Air Quality and Public Swimming Pools and Spas
Swimmers, bathers and spectators at indoor public swimming pools may experience difficulty breathing or other health-related problems due to a buildup of chloramines in indoor air.
Chloramines & Pool Operation
Chlorine is used in pools and other chlorinated aquatic venues to kill germs, but when it binds to the body waste swimmers bring into pools (for example, sweat and urine) it can form chemicals called chloramines.
Use of hydrodynamic cavitation in (waste) water treatment
This paper discusses the methods of wastewater treatment (cleaning), including the removal of pharmaceuticals, toxic bacteria, algae and viruses from the water.
A parametrical study of disinfection with hydrodynamic cavitation
This study shows how the bubbles generated from the cavitation device can be used to destroy microorganisms and even disinfect wastewater, including Escherichia coli (E. Coli).
Ocular and Respiratory Illness Associated with an Indoor Swimming Pool
On December 26, 2006, the Nebraska Department of Health and Human Services (NDHHS) received a report of a child hospitalized in an intensive care unit for severe chemical epiglottitis and laryngotracheobronchitis after swimming in an indoor motel swimming pool.
Investigation of Employee Symptoms at an Indoor Waterpark
The Warren County Combined Health District asked the National Institute for Occupational Safety and Health (NIOSH) to assist in investigating the cause of symptoms reported at the Great Wolf Lodge (GWL) indoor waterpark resort in Mason, Ohio. Symptoms included cough, wheezing, shortness of breath, eye and nose irritation, and skin rashes.
Chlorine in Pools May Cause Breathing Trouble
A new study shows that swimmers experienced breathing problems similar to those associated with asthma after several minutes of swimming even in water with chlorine levels below the recommended level for disinfecting private pools.
Unveiling the physical mechanism behind pistol shrimp cavitation
| Scientific Reports https://www.nature.com/articles/s41598-017-14312-0
How Powerful Is a Pistol Shrimp? A Marine Biologist Explains
Can rapid pressure decrease induced by supercavitation efficiently eradicate Legionella pneumophila bacteria?
In the present experimental campaign we set out to evaluate the efficiency of removal of L. pneumophila by three types of cavitation—the most commonly used acoustic cavitation, the aggressive developed hydrodynamic cavitation, and the supercavitation. We show that it is probably not the pressure peaks or the high local temperatures that cause the eradication of the bacteria, but the rapid pressure decrease which was initiated in supercavitating flow regime.
Efficient Inactivation of MS-2 Virus in Water by Hydrodynamic Cavitation
The aim of this study was to accurately quantify the impact of hydrodynamic cavitation on the infectivity of bacteriophage MS2, a norovirus surrogate, and to develop a small scale reactor for testing the effect of hydrodynamic cavitation on human enteric viruses, which cannot be easily prepared in large quantities. For this purpose, 3 mL scale and 1 L scale reactors were constructed and tested. Both devices were efficient in generating hydrodynamic cavitation and in reducing the infectivity of MS2 virus.
The hydroxyl radical, •OH, is the neutral form of the hydroxide ion (OH−). Hydroxyl radicals are highly reactive (easily becoming hydroxylgroups) and consequently short-lived; however, they form an important part of radical chemistry. Most notably hydroxyl radicals are produced from the decomposition of hydroperoxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. It is also an important radical formed in radiation chemistry, since it leads to the formation of hydrogen peroxide and oxygen, which can enhance corrosion and SCC in coolant systems subjected to radioactive environments.
The Structure of Water
Water is a molecule (H2O) that contains two hydrogen atoms each sharing a pair of electrons with an oxygen atom. When atoms share electrons in this way, a covalent bond is created. These bonds are essential to living organisms.
Chloramines & Ozone Depletion
When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. Ozone can be destroyed more quickly than it is naturally created.
A new study showing sicknesses related to recreational water sites between 2015 and 2019
“3,600 sick, 13 dead from outbreaks linked to recreational water sources over last 5 years,” CDC says.
Is Swimming in Chlorine Bad for You?
Swimming is a great way to get fit, but if your pool doesn’t have a saline, ozone, or a structured water filter, then you’re going to be stuck swimming in chlorine. Chlorine is used in pool water because it kills bacteria and germs, oxidizes organic debris from perspiration and body oils, and fights algae. But chlorine also creates side effects, such as red eyes, dry skin and hair, and a strong odor.
Why is too much chlorine in pools so dangerous?
Improper pool maintenance can lead to some less-than-pleasant health problems if you’re not careful. In fact, putting too much chlorine into pools can actually lead to a type of poisoning that can cause acute pain and discomfort for you and your kids.
What are the harmful effects of swimming in chlorinated water?
When chlorinated pools are indoors, toxic gases such as nitrogen trichloride are released, which can be very dangerous. When we breathe in this gas it can cause severe damage to the lining of the lungs which could lead to respiratory problems or asthma. This toxic gas can be harmful at any age yet it poses the most risk to elderly people and small children.
Chemical Warfare in WW1
Chlorine gas effects the body in many ways. When it is come into contact with as a gas it affects the eyes, skin, and lungs. When the eyes are exposed to chlorine gas it has many effects. It causes burning in the eyes, uncontrollable blinking, redness and inflammation along with the production of tears. It can also burn the cornea killing the cells within it. The effects of chlorine gas on the longs are extensive and can even lead to the collapsing of the lung.
Patent: Automated Greenhouse
The greenhouse produces its own pure, clean water supply with proprietary, on-board atmospheric water generators incorporating water treatment technology, namely ozone, hydrodynamic cavitation, acoustical cavitation, and electrochemical oxidation to oxidize and destroy contaminants to maintain purity.
5 Harmful Effects of High Levels of Iron in Water
Iron is an essential mineral, but when it gets into your drinking water, it needs to be removed. Iron in water has many negative effects, here are the most common ones.
Controlled Hydrodynamic Cavitation: A Review of Recent Advances and Perspectives for Greener Processing
Cavitation-based technologies are gaining interest among processing technologies due to their cost eectiveness in operation, minimization of toxic solvent usage, and ability to obtain superior processed products compared to conventional methods.