Currently 5,000 tons of food waste is collected annually and sent to an anaerobic digester. There the food waste is converted into methane which is then burned to generate electricity. According to the Society For General Microbiology:
whose paper in March 2018 made separate food waste collections a key recommendation.
Barnet have to pay to process the food waste but because it is such a good quality "feedstock" for the anaerobic digester (AD), it is highly valued and as such the price paid to process food waste is much lower than for other products used at other facilities such as sewage slurry.
Barnet will now send the food waste for incineration, a process which is much more harmful to the environment that AD. Don't take my word for it. Below is an extract from a scientific paper submitted to The 8th International Conference on Applied Energy – ICAE 2016 "Comparison between the technologies for food waste treatment" which you can read in detail here.
I know it looks a bit technical but the key facts are that incinerating food waste is much worse for the environment that AD. Incineration of food waste generates much more nitrogen dioxide and twice as much dioxin, a substance harmful to humans, than AD.
So now let's look at the alternatives, the ones that weren't discussed at the meeting. Before the election Barnet Conservatives made much of promising to retain weekly bin collections. However at the same time they recognised that recycling rates have fallen back and we are miles away from achieving the 50% target they set. A number of boroughs have moved to fortnightly general waste collection not just to save money but because it forces people to recycle more. In Barnet the obvious solution would be to retain weekly recycling collections, blue and brown bins, and to move to fortnightly black bin collections, incentivising people to recycle and to divert more of their food waste to the brown bin.
I don't have the specific figures but I am sure that cutting black bin collections to once a fortnight would save a heck of a lot more money than cutting brown bin collections which are picked up at the same time as the blue bins. The problem is Council Officers were unable to offer that option because the Tory manifesto said they would keep weekly bin collections.
It is also worth noting that by scrapping the brown bin collections it will make it impossible to shift to fortnightly black bin collections in the future because the food waste will stink after two weeks especially during the summer months.
The final nail in the environmental coffin is that the redundant brown food bins and kitchen caddies from every household won't be recycled - they will be burned in the Edmonton incinerator.
I do not believe councillors were given all the information and residents definitely weren't consulted about this change of policy. This decision is a bad one, environmentally and financially, and must be overturned. Please sign the petition and ask your local councillors to try and overturn this bad and entirely political decision. Click here for the petition