Improper management of solid waste is one of the main causes of environmental pollution and degradation in many areas of the world.
Landfill sites, as well as being unsightly, inherently have a growing risk of becoming a source of infectious disease, alongside increasing toxicity, with the potential for effluent leaching and pollution of the water table.
This form of disposal and handling of waste, thus, leads to environmental degradation, destruction of the ecosystem and poses great risks to public health.
As there are no specific, known environmental and health risks associated with the production of soil improver from Municipal Solid Waste via the VWP process, every ton of treated waste serves to address these generic concerns and is a positive contribution to greater environmental care.
With the granting of patents, on both the process and apparatus, in Europe, the USA, India, China, the Russian Federation and 35 other countries, it is clear this is a new concept in waste management, incorporating the greenest, cleanest technology available. In every step of the operation full consideration is given to the environment.
The aim is to clean up the mountains of waste that are growing worldwide and replace them with much needed supplies of fuel, soil improver, industrial alcohol and other essential by-products.
Production of alcohol and ethanol from organic waste involves a process of fermentation. Once the feedstock has passed through the VWP, celluloses are freed from lignin.
Utilising an enzyme hydrolysis pre-treatment step, polysaccharides are converted to a monosaccharide, which are more susceptible to interaction with yeast.
The alcohol produced from the subsequent fermentation can be further distilled to arrive at ethanol, suitable for blending with conventional transport fuels.
The fibrous matter becomes swollen at the molecular level by the heat treatment and this vital process opens up the fibres of the waste allowing greater efficiencies in any biorefining. In simple terms, the heat treatment opens up the fibres of the waste.
Furthermore, any microbes and bacteria that were present in the shredded waste will have been ‘cooked’ in the Vantage Waste Processor ensuring that the output waste is sanitised.
Pasteurisation of liquids occurs at various temperatures depending on the liquid, but the highest temperature used is 140°C. For prion elimination, various recommendations state exposure to 121 – 132°C for 60 minutes or 134°C for at least 18 minutes.
The following table illustrates the thermal death rates of the most prevalent organisms:
| Time (in Minutes) for destruction of organisms at several temperatures | |||||
|---|---|---|---|---|---|
| Organism | 50°C | 55°C | 60°C | 65°C | 70°C |
| Bacteria | |||||
| Salmonella typhosa | – | – | 30 | – | 4 |
| E.Coli | – | – | 60 | – | |
| Shigella sp | – | 60 | 20 | – | – |
| Streptococcus Pyogenes | – | 10 | – | – | – |
| Brucella abortus | – | 60 | – | – | – |
| Viruses | |||||
| Viruses | – | – | – | – | 25 |
| Protozoa | |||||
| Entamoeba Histolytica cysts. | 5 | – | – | – | – |
| Helminths | |||||
| Necatir americanus. | 50 | – | – | – | – |
To discuss how VWP Waste Processing Limited and their technology can assist your particular requirements, please get in touch.
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