Tag: Residences

Champion Hill win Student Switch Off!

Every year, King’s runs the NUS Student Switch Off competition in its halls of residence. The aim of the competition is to encourage students to save energy. We started the campaign in autumn with visits to every hall, and NUS continued it throughout the year with photo competitions, quizzes and lots of prizes.

At the end of each year, the hall that saved the most energy compared to the previous year wins a delivery of Ben & Jerry’s for their hall. This year, we upped the difficulty and added recycling scores to the mix. So on top of making sure they were energy-efficient, students had to take care with what they put in which bin.

This year, Champion Hill Residence were the lucky winners. They came second in the energy-saving ranking, but due to their great recycling performance they managed to take the overall trophy.

So on a sunny day last week, we headed down to reward Champion Hill residents for their effort. In total, we handed out 400 tubs of Ben & Jerry’s (as well as some vegan soy ice cream) to students! With exam period in full swing, this was a well-deserved break for many residents. See for yourself:

400 tubs of ice cream, ready to be handed out

400 tubs of ice cream, ready to be handed out

Signs at reception to direct students to our giveaway

Signs at reception to direct students to our giveaway

Ice cream time!

Ice cream time!

A sunny day during exam period was the perfect time for an ice cream giveaway/break

A sunny day during exam period was the perfect time for an ice cream giveaway/break

In addition to winning the Student Switch Off, Champion Hill also has a great range of sustainability initiatives. We have previously featured the Champion Hill Wormery on our blog, which exists in addition to composting bins. The courtyard also has a pond and a plot for a planned herb garden. Finally, Champion Hill also has a Combined Heat and Power Plant (CHP) and solar PV panels on the roof, making sure the energy used in the halls comes from more sustainable sources!

How to deal with food waste: Introducing the Wormery

For most of us, food waste is an everyday reality. Whether it is buying vegetables we can’t quite finish, or cooking too much pasta or rice, it is hard to avoid. At Champion Hill Residence, students have two great alternatives to throwing food waste in the general waste bin – and one of them involves some very interesting ‘pets’.

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Composting bin

In September this year, the Champion Hill team sent out emails to new residents to see if anyone was interested in a food composting project. Since then, 22 kitchens signed up and picked up their food waste caddies – that’s 25% of residents! The composting bin is located in the courtyard of Beech block, and open at the bottom to make it possible for insects to get inside and help the composting process. And it’s not just for food waste: paper and cardboard make composting more efficient – and less smelly.

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The Wormery

But, hidden from sight, there is another way of breaking down food waste: a Wormery. In a wormery, a colony of worms eats through the food waste. While it might not sound nice, worms are highly efficient at dealing with waste, and leave behind useful by-products in the form of fertiliser for plants. The residence’s Sustainability Champion Holly found out about wormeries while researching food composting, and loved the idea. At the moment, the Champion Hill wormery is home to around 480 red tiger worms – a number that is expected to increase rapidly once the worms start breeding in the warmer months.

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The healthy worm diet

They eat most things we eat: vegetables and fruit, peelings, bread, cake, and even pizza. To make sure they get a healthy diet, the team has placed a ‘worm menu’ next to the wormery (see picture). How quickly food waste is composted depends on the temperature: At the moment, worm activity is lower due to the cold, but activity and composting is expected to speed up when it gets warmer. And it turns out worms are not very demanding pets. Even though you do need to add a handful of lime mix every couple of weeks to prevent acid build-up (and to help the worms’ digestion!), once worms are fed they can be left alone for a few weeks.

The container is sealed, and liquid can be taken out through a tap at the bottom, which prevents the nasty smells we often associate with composting bins. This liquid is also rich in nutrients. Diluted, it can be sprayed onto plants as fertiliser.

And much like in conventional composting bins, the solid material worms leave behind can also be used to fertilise plants. Both the composting bin and wormery are relatively new, but once the fertiliser from both of them is ready in the spring/summer, the Champion Hill team plans to make the most of it.

Inside the wormery - no worms visible due to cold weather

Inside the wormery – no worms visible due to cold weather

One idea is to set up a herb garden in the residence, making the space more interesting for students, as well as adding to the biodiversity of the courtyard. If you have been at Champion Hill recently, you will have seen the early stages of this project. As a university, we are constantly working on improving our environmental footprint. Efforts such as the food composting projects by the Sustainability Champion Holly and the rest of the Champion Hill team are an excellent example of how this can be achieved through new and sometimes unusual ideas.

Resident at Champion Hill and want to compost food waste? Make sure you know what you can and cannot dispose of at Champion Hill by contacting the residence team. The composting bin is located in the courtyard of Beech block. The wormery is not directly open to students to make sure the worms get the correct diet, but food waste from participating kitchens is taken there by staff.