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Incineration of other wastes is expensive and leaves a huge residue and adds to air pollution. Pyrolysis is a process of combustion in absence of oxygen or the material burnt under controlled atmosphere of oxygen. It is an alternative to incineration. The gas and liquid thus obtained can be used as fuels. Pyrolysis of carbonaceous wastes like firewood, coconut, palm waste, corn combs, cashew shell, rice husk paddy straw and saw dust, yields charcoal along with products like tar, methyl alcohol, acetic acid, acetone and a fuel gas | Scottish Environment Protection Agency Environment WaV Agency PPG13 July 2007 Environment Alliance - working together pollution prevention guidelines Vehicle washing and cleaning PPG13 These guidelines are jointly produced by the Environment Agency for England and Wales the Scottish Environment Protection Agency and the Environment and Heritage Service for Northern Ireland referred to here as we or us . Following this good practice guidance doesn t remove your responsibility to comply with the law and prevent pollution from your activities. Causing or allowing pollution is a criminal offence compliance with this or any guidance isn t a defence. You should make sure that the references to other sources of guidance are still current use updated guidance if it exists. This guidance covers vehicle washing and cleaning by all methods including automatic wash systems washing by hand using high pressure or steam cleaners at all sites including retail premises business and industrial premises public and private car parks former petrol filling stations This guidance also applies to washing and cleaning plant machinery equipment and boats as the principles are generally the same. It doesn t cover household activities but our good practice advice would be to use a commercial facility car wash that re-uses water or hand wash with a bucketful of water and a sponge without using detergent traffic film removers degreasants or other proprietary cleaners. We discourage the use of hose-pipes or high pressure cleaners for car washing at home. Contact us if you need further advice. Following this guidance will help you plan and deal with liquid and solid waste reduce the risk of causing pollution and by using water wisely could save you money. 1. Introduction Effluent and run-off from vehicle washing and cleaning activities can damage the environment and pollute rivers streams burns and groundwater. Dirt brake dust traffic film residue and oil that is washed off are all pollutants. .
