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Multriwell - Durable Gas Extraction
Multriwell is the new and effective solution for landfill gas extraction. This innovative technology enables landfill operators to extract considerably more gas compared to when traditional gas wells are used. The patented system consists of three components: short distance flexible vertical gas wells that are installed in very small grids, horizontal gas collection wells and an optional Trisoplast® or HDPE capping construction. By perforating the waste within very small grids also leachate layers will be perforated and spread more evenly through the waste and causes an enhanced bio-reaction, resulting in faster achievement of landfill inertia and settlement what generates a higher biogas production.
Multriwell stands for:
- Faster gas extraction at higher volumes
- High landfill inertia due to intensive waste perforation
- Flexibility when waste settles
- Less differential settlement at landfill surface
- Simple and safe installation
- Higher profi tability, less maintenance costs
The advantages of Multriwell:
- Optimum gas extraction
- Sustainable energy
- Improving landscape
What is Multriwell?
Multriwell is a unique, patented method for gas extraction. A large number of vertical, flexible (type V) wells are driven into the waste material, in a tight-meshed grid pattern. The gas is then collected via the horizontal (type H) Multriwell’s and collector pipes and transported to the manifold(s). The system is installed on top of a porous leveling layer or even direct on the waste, followed by a separation layer that acts as a subgrade for the capping layer. By installing the Multriwell system, we create a safe situation for residential, work and recreational use.
The advantages of Multriwell
Optimum gas extraction
Shortly after putting the Multriwell system into use up to even 10 times more gas can be extracted compared to the traditional system. On the one hand this is achieved thanks to the close-knit grid of flexible wells that creates a larger flow area surface and as a consequence a faster gas discharge. On the other hand, placing the type V Multriwell’s in a close-knit grid, the leachate present in the landfill site is distributed more evenly and poorly accessible areas within the waste are penetrated and thus more successfully reached. The result is a bio reaction that in turn leads to higher and faster production of landfill gas. In addition, the Multriwell system enables you to adjust the manifolds to extract the optimum percentage of methane. Using the highly cost-efficient Multriwell system your investment generally should pay for itself within just two years.
Sustainable energy
When using Multriwell you have the unique additional option of adding water to the landfill waste or recycling treated leachate through the system increasing the amount of gas produced by the waste. By connecting the system to a generator you can even generate sustainable energy or heat from your waste!
Multriwell and the landscape
Multriwell is a very attractive system not only for you but also for the environment. Multriwell for example does not require the installation of unattractive and easily-damaged gas wells that blot the landscape. In addition, the manifolds are embedded so that the only point visible in the landscape is a manhole cover.