HWT Water Treatment

Water Treatment Facility, a refreshing technology for our future

The HWT 90 is a new generation of water treatment plants, designed for those parts of the world where drinking water supply is problematical...............

Many diseases such as various forms of cancer are caused by polluted water – currently more than 2,000 pollutants are known to be found in drinking water. 


The-Environmentalist has developed a proven technology to guarantee unlimited high quality clean urban water supply without the use of chemicals. 


This new facility will replace the central water supply for the building and can be extended to replace common water treatment centres for entire cities and districts.


The Home Water Treatment HWT 90 - 500 (purification of 90 - 500 litre/hour) is a unique water purification system for individual homes. Contaminations due to ageing pipe systems that trigger dangerous bacteria and pollutants can be eliminated completely with this system. Prototypes for this system have already been developed. 

Water purification unit for your Home


A compact water treatment system was developed directly aiming at the final consumer. The plant can be adapted to various crude water qualities - from inferior tap water to seawater - due to its modular construction. The fully automatic system guarantees a user-friendly operation and a consistently high quality.


In many regions of the world the quality of drinking water is quite insufficient. Analyses of this water often show a high content of dirt particles, salt and bacteria. Poor raw water quality, old pipe systems or high ambient temperatures are just some of the reasons.


The-Environmentalist has developed a compact purification and disinfection unit to be used in kitchens or similar applications. The raw water is pumped through a pre-filter. Raw water can be drinking water of bad quality or water loaded by high levels of particles, salt and bacteria. 


The raw water is pumped through a pre-filter. After passing through the pre-filter, the water is treated by the first UV light disinfection unit. The UV radiation kills bacteria and germs so that the water is almost free of biological impurities. The disinfected water is pumped through the cross-flow filtration system by a high-pressure pump. Depending on the raw water quality, cross-flow filtration membranes with different pore sizes such as ultrafiltration and / or reverse osmosis are used. The water flow is divided by the cross-flow filter into two output flows: the purified permeate flow and the concentrate flow, which contains salt and particles. 


In cross-flow filtration, a flow is generated horizontally to the direction of filtration. Small particles and molecules larger than the pore size of the membrane are retained on the surface of the membrane and not in the polymer matrix that makes up the microporous membranes. Ultrafiltration works with a backwash system. The backwash system and the design of the filter modules and equipment ensure minimal consumption of backwash liquid. The flow is monitored on the filtrate side to eliminate the risk of incorrect measurement due to fouling. The pulsating backwash is triggered when a low limit value of the filtrate flow is present and cleans the entire filtration area quickly and economically. 

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