Click on one of the questions below to view the corresponding answer:
One of the benefits of WT ENERGY SMEA’S innovative technology is that it is scalable, therefore plants can be engineered to meet any size requirement: from small systems that process up to 30.000 tons of waste per year, to larger plants which handle more than 350.000 tons of waste per year.
No matter the size, all of our systems offer the same environmentally friendly characteristics and attractive ROI.
The nitrogenous water (rich in nitrogen) can be reused in agriculture or channeled into a water depuration plant; while the soil improver can be disposed of in the environment or dehydrated and fed into the dry waste plant. Neither by-product requires additional processing costs.
The expected lifespan of a WT ENERGY SMEA plant is more than 25 years when annual maintenance and part substitutions are performed as indicated in the operational manual. The costs associated with annual maintenance are provided in the feasibility study.
The maintenance costs indicated in the feasibility study performed by WT ENERGY SMEA are the only expected maintenance costs to be incurred during the lifespan of the plant. WT ENERGY SMEA will train client technicians to properly maintain equipment and supply all the necessary spare parts.
For a list of active plants consult the section of the website.
Please note that full undifferentiated Waste-to-Energy technology is relatively new. As of present, there are currently several plants throughout Europe (Italy and Germany) which incorporate various phases of the full MSW-to-energy process.
Yes, to see the full undifferentiated Waste-to-Energy process WT ENERGY SMEA recommends clients visit 3 different plants located throughout in Italy and Germany.
WT ENERGY SMEA is open to transferring a part of the technology to be manufactured to a local and reputable general contractor, provided there is a foreseeable advantage in Capital Expenditure.
Please consider that the Capex indicated in this website is an order of magnitude, and only after a complete feasibility study is performed (which takes into account waste composition and other local situations) is it possible to obtain a more accurate figure for the whole investment.
WT ENERGY SMEA will perform a feasibility study to gather specific information regarding waste composition, local costs, price of energy, etc., and use this information to calculate the Capex, O&M costs and ROI.
The study is performed and paid for in advance — the cost is then deducted from the total budget once the project has been commissioned.
The cost may vary depending on the size of the project:
- For an entry level sized plant processing around 50.000 tons/year the cost is approximately € 100.000 (plus travel expenses).
- For larger sized projects the cost is approximately € 400.000 (plus travel expenses).
The study is performed and paid for in advance— the cost is then deducted from the total budget once the project has been commissioned.
The plant is equipped with a basic software controlled system to ensure that all processes are running correctly, while byproducts and emissions are regularly sampled and analyzed. If need be, the software system can be upgraded with additional control components.
Yes, waste composition is one of the key factors in determining plant design.
Yes it does, input from the grid is only required during the startup phase and during full maintenance procedures while the co-generators are switched off.
Incineration of waste as it comes is the simplest and most practiced technology used for many years in several countries. The common opinion of the technical/scientific community is that the “brutal” incineration of waste is no longer the answer to waste disposal problems due to the high construction and operational costs of the plant, and the very low efficiency of the system. Undifferentiated waste contains high quantities of organic fraction (that is almost water) up to 50 % (70-80 % in some countries such as China), and as everyone knows burning water requires a lot of energy.
It is better to process “fuel” instead of burning waste and therefore increase the efficiency of the process while producing reusable energy from the organic fraction (via biological processes like anaerobic digestion).
Players who have already built incinerators normally need to wait until the incinerator investment return time is complete before investing in new technologies. Normally they are open to evaluating new technologies in the meantime, so as to be ready when the actual system is no longer competitive and needs to be replaced.
- Higher energy efficiency
- Electrical and thermic energy production
- Recovered valuable materials such as iron and aluminum which can be recycled
- Reduced cost of waste transport: the small size of the plant makes it possible to collect, distribute and treat waste locally
- Competitive costs for plant realization
- The CO2 emitted from the use of biogas is neutral
- Glass is recovered using a grid filter
- Iron is recovered using an iron removal device
- Aluminium is recovered by means of a magnetic induction device
- Plastic is the main component of the energetic dry fraction (plastic has a high calorific value) which is transformed into Syngas and then converted into electric and thermic energy.
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