intervention to clean the inside of the vessel. In early systems, the primary product was cellulose fibres. This comprises the putrescible (rottable), cellulose and lignin elements of the waste stream. The fibres can be fed into anaerobic digesters to reduce the biodegradability of the waste and to produce biogas. Alternatively the fibre could be used as biofuel. Some systems claim to wash out hydrolysed hemicellulose sugars and most of the protein as water-solubles. The remaining materials, after simple physical separation (trommel screen) has several valuable uses. One system claims to be able to dry the cellulose during processing using heat, and another system is able to dry the cellulose (much more economically) using pressure and steam kinetics. After fibre separation, the secondary streams consist of mixed plastics, which have normally been softened and deformed which eases separation, a glass and aggregate stream, separate ferrous and non-ferrous metals. The heat, steam and rotating action of the autoclave vessel strip off labels and glues from food cans leaving a very high quality ferrous/non-ferrous stream for recycling. With the removal of water, fibre, metals, and much of the plastics, the residual waste stream for disposal may be less than 10% by weight of the original stream, and is essentially devoid of materials that decompose to produce methane. Systems in Europe meet and exceed all of the European waste treatment and recycling requirements. The full process of loading, treatment and sorting is typically completed within 90 minutes. In a typical batch-type configuration, 2 10-ton units operating side by side would treat 440 tons per day with time for preventative maintenance. Continuous flow systems are modular and are specifically designed to match the necessary capacity. The size of the vessel varies between vendors. Experience shows that "small" vessels are not productive enough; while if the vessel is too large, the heavy weight of the vessel may cause equipment failures. Commercial application Ecohispánica has developed and built a municipal solid waste treatment plant based on an autoclaves system called "Waste Cleaner". It is the first system able to process municipal solid waste (MSW) in continuous mode. The plant is able to process up to 40.000 tons per year without previous selection, and the system has been internationally patented by Ecohispánica. The process applies water steam, pressure, temperature, and some internal movement. In about 20 minutes, the main part of the garbage (organic matter), is converted into