DWC DecRen Water Consult

DWC DecRen Water Consult

DWC, DecRen Water Consult is a Germany based company advising its worldwide clients on decentralised and renewable powered water technologies like rain water harvesting, grey water recycling, waste water treatment using constructed wetlands, PV/Wind powered smaller scale reverse osmosis systems, water saving technologies, innovative sanition (dry, separation etc) concepts . The benefits for clients are always enough water at the right quality for much lower costs. Ideal for hotels, ressorts, remote communities, off grid locations, farms, private properties, military, etc.

Company details

Balduinstrasse 32 , Trier , Germany D - 54290 Germany
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Business Type:
Consulting firm
Industry Type:
Water Treatment
Market Focus:
Globally (various continents)
less than 1,000,000 €

DWC, DecRen Water Consult stands for decentralised and integrated solutions for the whole water sector that are powered by renewable energies.

The current situation shows that centralised solutions for water supply and waste water treatment come closer to its limits technically and financially. Nevertheless not much effort is shown to change the fundamentally needed change away from a small number of centralised structures to a large number of autonomous decentralised structures. Even worse, various legal requirements (at least in Germany) strongly discourage the use of sound and proven technologies. Centralised solutions seem to be the preferred choice if they fit the local structure or not seems to be secondary.  

Despite that situation there are a growing number of people, companies and organisations in Germany and across the world who have developed and applying successfully simple, effective and proven decentralised water solutions.

The prices of fossil fuels are likely to increase. The effort and costs to run conventional powered water solutions is increasingly difficult to calculate over the coming years. The only choice to calculate with some certainty the water costs longer term is by using technologies or processes powered by renewable energies.

DWC's objective is to develop sustainable solutions to help solving the water problem

Integrated Water Management means more then just offering a single product solution. A holistic approach using and combining a number of different options are often better suited in helping people longer term.

Water sources

Which water sources can I use? Where, when, how and in which quantity are they available? We look at all the sources and decide what are the easiest and the most cost effective ways to utilize them for different purposes.

Drinking water

There are numerous ways to purify any kind of raw water into drinking water quality. Which ones are the best depends on individual local circumstances. High Tech, Low Tech or 'Appropriate Tech' or a combination thereof is a matter of clever planning and dialogue with the client.

Grey water

Grey water is waste water with limited contamination.  It is usually coming from showers of the bath. Grey water can be relatively easily treated wit a number of different technologies and reused for various purposes. With simple means it is possible to reduce the quantity and the contamination of grey water so that the treatment effort is reduced accordingly.

Black Water

This is mostly the water from toilets. Apart from reducing the water required in the process of flushing to the extent of water free toilets it is beneficial in many cases to separate the content for further commercial use like soil production or liquid fertilizers. A proper decentralised sanitation concept is always cheaper to achieve then to cover the costs of a neglected sanitation. Sanitation is a crucial part of any water integrated water concept.

Surface water, groundwater

The treated water is stored as ponds or in tanks and available for further reuse. It is not considered as waste water but as a resource to be utilized again for a number of different purposes. Whether for farming, irrigation, for toilet flushing, shower or even drinking water, all depends on the requirements and the technology chosen.

Short and renewable water ways

Avoiding long distances of water infrastructure or the use of fossil fuel makes a decentralised system not only cheaper and more reliable but also safer since all the infrastructure is on site and redundant to any other system. Technical advances in monitoring systems for quantity and quality make it also safe and comfortable to maintain complete systems even in remote locations.  

Typical project questions by DWC

  • Water demand/ flow for toilets or water for general use
  • Water demand for drinking water (including if rain water systems are used)
  • Water demand totally (Pool, garden, etc.)
  • Technical drawing of the site (Sanitary installation, waste water structures...)
  • Space availability on site
  • Current costs for drinking water and waste water treatment
  • Energy costs

We concentrate to fulfil the wishes of our clients to secure their water needs on a sustainable basis. We prefer integrated and appropriate technologies that cover the whole water cycle.

Water crisis in the recent years have shown the limits of a centralised water infrastructure. Future challenges can hardly be managed with a centralised approach. Decentralised and redundant water concepts are the smarter and certainly cheaper alternative. 

The costs of water concepts that are based on fossil fuels are very difficult to calculate. The longer term security can only be achieved by using renewable energies.

Water management
Only a fraction of the daily water consumption needs to have drinking water quality. The water management of the future offers a number of different water qualities. Through intelligent application of technologies for various kind of raw water we develop client specific solutions. 

Waste water management
The uncontrolled disposal of untreated waste water is one of the key problems worldwide. Waste water is a resource that - if treated properly - plays a major role in the water supply.

Our aim is to create modern and autonomous water cycles with our client and at our client.