The other journalists on this tour were an interesting mix, coming within Europe from Brussels, Germany, Denmark, Spain and the Czech Republic as well as further afield from China, India, Brazil and South Africa. It was interesting to hear everyone’s comparisons with what’s going on in their home countries, particularly the developing BRIC countries.
One of the more interesting sites we visited was energy-from-waste incineration plant in Amsterdam called the Waste and Energy Company, a public utility.
Having never seen a trash incineration plant before, I wasn’t quite sure what to expect. But I had plenty of pre-conceived notions about massive industrial plants spewing out plumes of noxious gas they torch piles of needless human waste. When our bus pulled up it looked like this was going to be the reality, as we could immediately see two giant smokestacks pouring white smoke into the air. However once inside and given a tour, I was surprised by many of the things I learned about the plant. The facility, which processes over 1.4 million tonnes of municipal and industrial waste annually, is actually the largest waste processor at a single location in the world. Two freight trains and 600 garbage trucks deliver trash to the facility each day.Gross right? But astonishingly, the facility is able to recycle nearly 99% of the waste it receives. It does so by using the heat produced from burning the garbage to generate energy, much like a coal plant burns coal to produce energy. The facility produces 1 million MWh of electricity per year, enough to cover three quarters of Amsterdam households. All of Amsterdam’s public transportation is powered from the plant, as well as all street lights. The plant also uses the excess hear generated during the burning to provide businesses and homes with heat and hot water. Thus two environmental issues are solved: what to do with garbage and how to create energy without using finite resources like oil, coal and gas.
That’s all well and good, you may say, but what about the toxic emissions that are produced from the burning process? Well the AEB plant has devised a way to treat this. During the burning process, the steam (which drives the turbine) is separated from the smoke, and the smoke is then extensively filtered through flue-gas cleaning, which actually takes up 2/3 of the whole plant! By a process of separation, new materials are extracted from the gas. The sulphur recovered is used for the production of plaster board and blocks for the building industry, and the calcium chloride extracted can be used to defrost roads in winter. And the metal waste that can’t be burned is extracted, ground into bottom ash, and made into artificial sand for use in the construction of roads and buildings. In the end 99% of the impurities are filtered out. That smoke I saw coming out of the building? Only water vapour.All in all it was an interesting trip. It was especially interesting talking to all the other journalists, especially the ones from Brussels. It actually made me excited for my move there in the Autumn. This weekend I'm in Zurich, Sunday is Father's Day in the US and UK so I thought I'd come here for it. I'm basically living at Heathrow Airport these days! After this I have a few straight weeks in the UK though. Well, at least 2 weeks. Hopefully we'll get some sunshine in London finally.
2 comments:
Sounds like a really interesting trip!
Nice little junket!
Post a Comment