Water and Effluent Treatment Magazine
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14 WET NEWS JULY 2016 ONSITE Onsite drainage a schematic of the under- construction templeborough Biomass Power Plant Naylor's taking the heat out of drainage • With the increasing trend for biomass and energy from waste production any drainage system installed must be able to handle not just high temperatures but significant thermal shock as well. projEcT SpEcS • develop a special type of pipe to withstand high temperature environments • install the thermachem pipe at three biomass and energy from waste plants C limate change, for much of the past two decades if not more, has been a driving factor behind the push to increase electrical power production by renewable, non- fossil fuel means. This has seen a meteoric rise in the number of wind turbine and solar farm developments all across the UK and many other parts of the world. However, whilst the reduction in CO2 emissions has been behind this aspect of the industry, a further driver behind the minimising of production of greenhouse gasses has been the push to reduce methane (CH4) production from landfill sites by the use of recycling. Methane is believed to be equally, if not more, influential in terms of climate change as CO2, so any reduction in the output to the atmosphere of CH4 is seen as a major step forward in the climate change fight. The separation of food waste from general waste has helped this cause considerably, but in the UK this still leaves a significant amount of non- recyclable waste being sent to landfill. Latterly, the volume of waste has been increasing the pressure on landfill sites, so many companies and individuals have been trying to find ways to simultaneously answer both climate change and landfill questions. This drive has led to the development of power plants to provide electricity through the use of non- recyclable waste as fuel or through the burning of biomass products such as waste wood. High temperatures Of course, the establishment of plants to undertake the generation of power from these fuel sources is no less complicated than the way in which fossil fuel burning plants are designed. One aspect of the power production that has always needed an answer is how to handle the wastewater outputs from such plants. On the cooling side of the plant, a major challenge is how to handle the initial high- temperature effluents in a naylor thermachem installed amongst the construction steel work for the templeborough Biomass Power Plant.