Elucidating UV And Carbon Filtration Process

Elucidating UV And Carbon Filtration Process
Most of the rainwater harvesting systems rely on a combination of sediment filters, carbon filters and ultraviolet (UV) rays. All of these components work together to remove the impurities and ensure the water is potable. In order to understand elaborately how they work, we would take a detailed look at their functions.

UV Light

A pair of sediment filters (25-micron and 5-micron respectively) removes the particulates from the water so that the UV light can do its job disabling the DNA of bacteria in the rainwater. Without these filters, the particles can block the UV light and the bacteria would be able to pass through it. Thus, it is important to change these filters on a regular basis. Moreover, UV light has the distinction of adding no harsh chemicals or flavour to the water, which makes it a preferred method to kill bacteria.

Carbon Filters :

Activated carbon filters are also used to treat the odour, test problems in water as well as remove harmful water contaminants. They are manufactured from a variety of materials such as coal and coconut shells.

In many installations, the sediment filters are followed by the carbon filters, which is then followed by the UV light. Some of the rainwater harvesting manufacturers in Kerry actually preconfigure these components for use in private wells and rainwater catchment systems.

Complications When The Water Treatment System Is Turned Off :

The placement of the carbon filter, between the sediment filters and the UV light, can be an issue in some isolated cases, specifically when the water system is not used often. In such cases, bacteria can adhere to the walls of the carbon filter and replicate, turning the carbon filter into a bacterial breeding ground.

This can also be a common case where the UV light is turned off to save energy. The water may become cloudy due to this explosion of bacteria. Even when the system is turned back on, this cloudiness in the water remains and can actually protect some of the bacteria to pass through the UV light. Furthermore, turning the UV light on and off may actually shorten its life.

What If You Want To Close For A Certain Period?

If you are opting for a vacation, shutting off the UV light is the only option. But you can certainly follow some simple solutions in this case:

  • Drain the filter and UV cartridges. Remove the canisters and store them in a clean environment before reinstalling the system. Or you can also opt to install new cartridges. Remember both options require sterilization of the cartridge with a bleach solution.

  • Position the carbon filter on the opposite side of the UV light and install a backflow preventer between the two. It ensures that only water treated by the UV light can flow into the carbon filter. From this method, the carbon filter will still be effective in removing taste and odour problems without forming a bacteria farm.

  • Add a little bleach to the system. To make the process effective, remove the carbon filter, turn off the UV light and make sure that proper dosage of bleach is used. Contact a rainwater harvesting company to apply the appropriate dosage.

UV light and activated carbon filters both play a key role, each of which has a specialised function to perform.


Common Harmful Diseases That Lurk In Drinking Water

water treatmentDo you have any idea what’s in your safe drinking water? The answer to this question may surprise you. Even though the glass of water in your hand may seem to be crystal clear, there are still a number of contaminants present in it. Some of these contaminants are harmless, while others can cause serious illnesses. Fortunately, installing a water purification system to create reverse osmosis drinking water is an effective way to prevent waterborne diseases.

Common waterborne diseases
According to research, giardiasis is the most common waterborne disease. It is an intestinal illness caused by the giardia parasite. On the contrary, legionella, is a type of bacteria that causes Legionnaires disease. It is another contaminant that creates a serious respiratory problem which causes flu or pneumonia.

Even if the water is contaminated at the minimum level, you can get introduced to Shigella bacteria. This bacteria causes an infectious disease known as Shigellosis. A person affected by it may experience diarrhoea and severe intestinal cramping for several days.

Who can be affected by waterborne diseases?
Generally, anyone who consumes contaminated water can fall ill. However, small children are at high risk because they have not built up immunity to certain strains of bacteria and viruses. Elderly adults are also more vulnerable to such illnesses. People who are on certain medications or have been diagnosed with immuno-suppressive diseases can also develop diastases from contaminated water. No matter, whether it’s a child or a elderly person, installing a water treatment facility is very crucial for every peson in Cork and Kerry.

How Reverse Osmosis protects against waterborne disease?
Revers Osmosis is a form of water purification system that is designed to remove contaminants from water effectively. In this process, a highly concentrated solution is pressurised and pushed through a semipermeable membrane. The membrane acts as a filter and removes contaminants to produce pure drinking water. The layer of carbon captures fine contaminants that the membrane itself may not be able to catch. This process of water treatment is quite safer and also tastes better. The membrane of a Reverse Osmosis system may act as a normal filter, but it’s essential to understand that this system is not the same as a simple water filter.

The key to stay safe is to install a water treatment system that uses reverse osmosis and carbon to filter the water. Most of the commercial and residential housing facilities rely on these RO systems.

The Difference Between Passive & Active In Rainwater Harvesting?

Rainwater harvesting

There is a huge interest in water conservation and specifically in capturing and reusing rainwater in both residential and commercial buildings to reduce costs, environmental impact and lessen the load on municipal sewer.

Rainwater harvesting from rooftops is one of the solutions to conserve our precious water. There are two general types of rainwater catchment systems – active and passive. Most professionally installed systems incorporate aspects of both to maximise the water conserved.

Active rainwater system: It is the catchment system that actively collects, filters, stores and reuses natural water. The storage is the most visual aspect of an active system with large tanks. It also incorporate pumps, and filters the water. These are active components that require regular ongoing maintenance to run effectively and efficiently.

Passive harvesting system: In comparison to active systems, this incorporates no mechanical method of collecting, cleaning and storing rainwater. The intent with passive rainwater management is to create areas to contain waters until they can naturally be absorbed into the land. Vegetative swales, dry creek beds, and pervious concrete or pavers are types of passive collection systems. Passive systems can be relatively inexpensive and are generally simple to design and build.

Which is the best?
In most cases, one or the other can be used and can be highly effective; however, there are cases where one technique is better than the other, so both should be considered when looking at catchment systems. It actually depend on various conditions, the understanding of which can be made simpler by hiring professionals offering quality rainwater harvesting solutions in Kerry.

While active systems are more complex and expensive than passive, they have the ability to store large quantities of both winter precipitation and summer monsoon rains and move it to specific locations, where it is needed. Generally active systems are beneficial to irrigation systems but can also be utilised for indoor applications. Both types of catchment systems greatly reduce overall water consumption, but one major distinction is that active systems can also help reduce indoor water usage.

Passive systems require a bit more maintenance compared to active ones. They can be incorporated in most new or existing landscapes without major expenses. Building berms and swales to channel rainwater and slow it down to allow it to infiltrate are great places to start. Passive systems are a great resource for those interested in fully understanding how these systems work and how they can be used on both large and small projects.

Harvesting rainwater is a great option for conserving our precious water. Either passive or active, both of them save water significantly and should be incorporated in any harvesting project.

What Are The Benefits Of Rain Water Harvesting?

The process of rainwater harvesting is one of the easiest methods that helps to reduce water consumption. It is an energy efficient process that serves numerous benefits to both commercial as well as residential structures.

Consider Filtering Water On Your Own


Water is the most important substance on earth, without which survival of human beings is not possible. But if it is not purified or treated properly, it can make you sick. The process of water purification is of great significance.

Protection against harmful organisms
A recent study has shown that 90 percent of the world’s water supply is not fit for drinking purposes. It must undergo some sort of treatment. Water may contain micro organisms that stand responsible for causing dysentery, diarrhea, jaundice and so on. Water filtration and treatment services can help to kill these micro organisms and make the water safe for drinking. There are a number of water purification methods, like boiling, chemical treatment with chlorine or iodine, and other filtration systems.

Removing toxic metals
In addition to having micro organisms, untreated water is an open source of minerals like magnesium and copper. They may not necessarily pose a threat to human body but can react with other minerals in the water. This makes the water unsuitable for drinking. Other minerals may include lead, which is extremely dangerous to our health. Various chemicals, disinfectant agents and filtration systems are used to remove the minerals as much as possible for reducing the risk of contracting illnesses.

Chances of pesticide remains
Pesticides used on farms and lawns can seep into the water supplies. Municipal water can be treated for pesticide contamination, but if you have a well, you may not know that the water is contaminated with pesticides unless you have it tested. In such cases, home water filters installed by water treatment professionals can help to remove the pesticide level and other heavy metallic residue. Long-term exposure to pesticides in your water may increase risk of cancer, according to experts.

Home purification systems that meet the regulatory standards recommends water purifiers, as they are effective in filtering water and keeping you safe. They can remove all harmful organisms and metallic residue from the water. Purified water may sometimes taste insipid but it is the safest form of water. However, if you are not installing water filtration systems as per the expert’s recommendation, you may be doing more harm than good to yourself. Drinking unsafe water can cause several diseases like cholera, diarrhoea, red blood cell deficiency and more.

Consider hiring water treatment and filtration services in Kerry if you care for yourself and your family.

The Basic Processes Taking Place In A Water Treatment Plant

Water treatment plant

We all have, more or less, a brief idea about what happens inside a water treatment plant – basically, it purifies water and sewage so that clean water can be allowed back into the environment. What many of us don’t know is that the plant actually eliminates contaminants & solids first, then breaks down the organic matter present in the water, and finally performs a complete restoration of oxygen content. And these things, in turn, are achieved through a specific series of operations –

1) Preliminary treatment

2) Primary treatment

3) Secondary treatment

4) Sludge treatment

Let’s take a quick look at these four phases:

During the phase of preliminary treatment, easy pickings such as garbage, leaves, tree branches, plastic bottles, diapers, cans, waste materials, rags, etc. are extracted by bar screens. Some plants have air blowers for whipping fats and grease into froth so that they can be removed easily. Glass, sand and stones are settled out through regulation of water inflow by grit chambers & equalisation basins.

In this stage, water collected within sedimentation tanks and large basins are first separated from small particles by allowing the pollutants to settle out. Mechanical scrapers then gathers the solid matter for directing it to hoppers, which are, in turn connected to sludge treatment chamber. Some plants for water treatment in Cork use surface skimmers to extract oil and grease during the primary phase.

Secondary treatment mainly moves waste water inside secondary basins after aerating it, adding beneficial microbes in the process to initiate breakdown of organic matter. An array of strategies are employed for breaking down sludge as well. Certain facilities construct reed beds and wetlands for decomposing organic materials. Biological aerated filters and membrane bioreactors are the other forms of technologies utilised.

This is the ultimate phase in which the sludge, or biosolids and remnant water are treated. At first, gravity segregates heavy grit from organic matter, so that they can be disposed off in landfill. The residual primary sludge is allowed to pass into a thickener and then fed into digesting tanks with anaerobic bacteria after centrifugation. The remaining impure water is thoroughly treated with nitrogen, phosphorus and various other nutrients, in addition to being disinfected until it can be finally returned to water supply.

Thus, these are the most fundamental processes involved in the purification of water within water treatment plants.