The following shows that it can be hard driving a new waste treatment technology forward as an organisation participating in one of Defra’s Demonstrator Projects, and things possibly don’t always go quite as expected.
Nevertheless, this is exactly why public money is being well spent when put into these projects.
Defra Demonstrator Projects are full scale operational demonstration projects for innovative waste technologies, with UK government funding.
The following comes as published in the Defra Demonstrator News, Edition 2:-
Recent allegations regarding the use of compost like output (CLO) produced by one aerobic digestion plant operator have been investigated by the Environment Agency (EA) and Defra Animal Health.
The outcome of the investigation was that the CLO that was to be used as restoration material at the demonstrator operator’s owned landfill sites will now be required to be disposed of to landfill.
The operator responded quickly and proactively to these findings, immediately commencing a series of improvement works to the site:
• Installation of a new temperature monitoring system.
• Installation of a heater phase in the bottom compartment of each tower which will ensure absolute achievement of Animal by Products Regulations temperature requirements.
• Application of insulation to the outer skin of the non-Demonstrator metal towers to improve heat retention.
• Installation of a new trommel screen to improve the CLO segregation stage and reduce physical contaminants.
Once these works are completed, the demonstrator operator will recalibrate and re-commission the plant. The operator also plans to install a further stage of CLO product refinement equipment later in the summer.
These changes are intended to address EA guidance on animal by-products processing requirements and the level of plastic contamination in the CLO.
These alterations at the site demonstrate some key learning outcomes with regard to new technologies for biological treatment which will add to the many invaluable outcomes of this Programme to date.