Water & Wastewater Reuse Solutions

Water & Wastewater Reuse Solutions

services Dark Kynn   tháng 8 14, 2017

Recycling wastewater can provide a reliable water source for industry, irrigation, and municipal use

Treating wastewater for reuse has become an accepted and reliable technical solution to address water scarcity problems around the world. Previously considered a disposal liability, reused wastewater can now become a valuable resource.

Ntesco has decades of experience around the globe in the advanced treatment of wastewater to purity levels that allow its reuse for industrial, agricultural, or municipal applications. We help our clients optimize their costs and minimize their environmental footprint.

Our energy-efficient solutions for industry can treat wastewater to a quality suitable for reuse in power generation, boiler feeds, cooling systems, beverage bottling, food production, and more.

Recycled treated wastewater can be used for surface irrigation of food crops, orchards and vineyards, golf courses, and landscaping. Other uses include recharging groundwater and preserving or augmenting wetlands or riparian habitats, as well as toilet flushing, street cleaning and other similar purposes.

With the high cost of transporting water, our decentralized wastewater treatment solutions are particularly suited to reuse applications close to the point of use. They provide a cost-effective solution, reduce the need to invest in large infrastructure projects, and help protect the environment.

Our water reuse solutions provide the following benefits, and more:

• Preserve freshwater resources
• Postpone or eliminate the need to develop a new water resource
• Reduce disposal and energy costs
• Improve visibility of long-term costs of water supply
• Minimize the environmental impact of wastewater discharge
• Attract new industry
• Improve the sustainability of local communities and economy

Hyflux Polymeric Hollow-fiber Membranes

Hyflux Polymeric Hollow-fiber Membranes

services Dark Kynn   tháng 7 28, 2017

Ntesco has signed an agreement with Hyflux Ltd for the distribution of Kristal® hollow-fiber ultrafiltration membranes manufactured in modified polyethersulfone (or as option in PVDF for special applications), which are available for various applications:

Industrial Wastewater Treatment

Industrial Wastewater Treatment

services Dark Kynn   tháng 7 10, 2017

What is Industrial Wastewater Treatment? Along with the development of society, the process of urbanization occurs rapidly, industrial parks are constantly expanding and new construction. The establishment and operation of industrial zones is often associated with the production and discharge of enormous amounts of wastewater with high levels of pollution, which harm directly to the environment and humans. Therefore, the problem of industrial waste water treatment is the concern of enterprises as well as the state. 

Water treatment systems

Water treatment systems

services Dark Kynn   tháng 6 17, 2017

Water treatment devices are available to disinfect water and kill bacterial and viral pathogens, and to reduce or eliminate a number of other chemical or aesthetic problems. Before investing in a treatment device consult a reputable professional and/or your local Public Health Inspector. It is important to know what the system you are looking at is designed to do. General statements like ”filters and cleans your water” may not give you enough information.

 DISINFECTION SYSTEMS 

Disinfection systems are designed to destroy pathogens – the bacteria and viruses that can cause illness. Most systems do not remove other contaminants from the water. There are a variety of options available offering different features and having different disadvantages. The following information is intended to help you decide which is right for you. 

Ultraviolet Light (UV) 

This is the most common form of domestic system. The systems destroy microorganisms by exposing them to ultra violet radiation. The systems tend to be reasonably cost effective, are easy to install and can treat the whole water system. They require limited maintenance, but the UV lamp should be checked and cleaned periodically and replaced where necessary. UV does not provide any residual disinfection which means that each property on a shared water system should have its own UV device. Cloudy, turbid, highly contaminated, or high iron water may not be effectively treated without suitable pretreatment (such as a filter system). 

Chlorinator 

The most common system in use in larger systems (sometimes in combination with a UV system). A Chlorinator adds a chlorine solution through an injector mechanism to kill microorganisms. As the system provides residual disinfection it can treat more complicated water systems with buried piping or multiple buildings. The chlorine residual can be tested to ensure correct disinfection. Chlorinators tend to be more expensive than UV, require more maintenance and a more knowledgeable operator. Chlorine also requires at least 15 minutes contact time (CT) which in turn requires the water system to be engineered to include a certain amount of water storage. When water containing a lot of organic material is treated with chlorine, undesirable or even harmful by-products can be produced. 

Reverse Osmosis 

Sometimes found in homes and cottages, Reverse Osmosis (RO) systems force water through a semi-permeable membrane to remove bacteria. The systems remove many metals, minerals salts, chemicals and unpleasant tastes but the membranes may also be fine enough to remove pathogens – check with the manufacturer or supplier. Most systems are reasonably cost effective and are easy to install but can only treat small amounts of water. As such they tend to be a “under counter” system supplying treated water to a single faucet. Systems are available that are large enough to treat the water supply for the whole house, but these are expensive and may require more management. In addition RO units produce waste water meaning that your overall water consumption will increase. Pretreatment may be necessary to protect the membrane filters which is delicate and must be intact for the system to work safely, although most modern systems include the pretreatment. 

Filters 

Not technically a disinfection device. The basic cartridge filter is available in different sizes and ratings. Filters are rated by how large the particles they let through are – a 20 micron filter will let through particles up to 20 microns whereas a 5 micron filter will only let through smaller particles up to 5 microns in size. Disinfection systems will operate better with, and may require a pre-filter. Other Devices As newer technology becomes more affordable systems such as ozonators (that produce ozone to destroy pathogens) may become cost effective. For camping and other “off the grid” uses, ceramic and other advanced filters are fine enough to remove pathogenic bacteria (but not usually viruses). 

SYSTEMS FOR THE REMOVAL OF CHEMICALS, TASTES AND ODORS 

Chemicals such as iron, manganese and calcium hardness (to name a few) can impart disagreeable taste and odors. Some chemicals can cause economic concerns as well: for instance very hard water will use more soap or laundry detergent and can shorten the life of equipment such as dishwashers.

 Activated Carbon or Charcoal Filters 

Designed to remove chlorine, odor and unpleasant taste. Are relatively inexpensive and easy to install and require no power to operate. They should only be used on disinfected or bacterially safe water and even then bacterial counts may ultimately increase in the water passing through the filters. For this reason charcoal filters must be changed often. 

Water Softener 

Water softeners use ion exchange (calcium to sodium) to reduce the amount of calcium that causes hard water, they may also help to reduce other nuisance odors and tastes. They are moderately expensive to install and maintain, but may reduce maintenance and replacement costs of other goods such as dishwashers. Softened water increases the sodium in the diet of those who consume it and is not recommended for consumption – particularly for those on a sodium restricted diet. Backwash from softeners should typically not discharge into a private sewage system (septic tank). 

Special Filters 

Filters are available that are designed to remove specific pollutants. These systems should be installed by a knowledgeable and competent person with experience in water treatment

Industrial Wastewater Treatment

Industrial Wastewater Treatment

services Dark Kynn   tháng 5 31, 2017

Most industrial manufacturing processes create wastewater that must be at least partially cleaned prior to discharge. Because of the broad range of possible pollutants, regulations that can vary by location, and the cost impacts of differing treatment approaches, there is no “one size fits all” package. Ntesco recognizes the complicated nature of wastewater treatment, and for 5 years, has meticulously employed expertise, including mechanical, chemical and biological solutions, for the technical and financial optimization of each of our clients’ needs.

Domestic Wastewater

Domestic Wastewater

services Dark Kynn   tháng 5 31, 2017

Ntesco offers proven wastewater solutions that help reduce project costs with a sustainable treatment approach. For municipalities, small communities, resorts and other commercial and residential developments, decentralized treatment is gaining significant momentum. 

Our Membrane Hyflux (MBR) systems fit the bill perfectly. Cost-effective and scalable, they allow treatment infrastructure to be added in stages as capacity requirements dictate. They're also extremely space efficient – reducing land requirements and providing more options of where the plant can be located. 

Ntesco MBR-based sewage treatment systems utilize our patented and globally-proven Hyflux UF membranes. Effluent from our systems meets or exceeds the most stringent regulatory standards for direct discharge and secondary reuse applications.

The evolution of Ntesco treatment systems for domestic wastewater has been built on significant input from our Operations team. Their insights have influenced everything from controls philosophy to our patented, ground level membrane removal system. The end results are sewage treatment systems that are robust, reliable and require minimal maintenance. They can handle high loads, and are very resilient to flow and loading fluctuations. With our SiteLink Ntesco, Ntesco systems can be monitored in real time and fully controlled from virtually anywhere. In short, they are extremely operator-friendly.