Tuesday, September 13, 2016

Production of medical isotopes using electron laser

In the quest to develop lithography machines that can produce ever smaller chip components, Dutch machine manufacturer ASML has discovered a way to produce medical isotopes using an electron laser (presentation video in Dutch). To produce ever smaller chips, ASML uses ever more energy intensive light energy sources. Currently ASML is introducing new machines using extreme ultra violet (EUV) light produced from a plasma laser. But ASML is already researching potential light energy sources for the next generation. Research with a free electron laser showed the potential to produce isotopes.

The free electron laser works much like a linear particle accelerator which propels charged particles (in this case electrons) towards a target thus forming photons or other particles. Those can then hit a secondary target where isotopes can be created.

According to a feasibility study conducted by ASML and its partners this technology (named lighthouse) can also be used to produce medical isotopes such as Molybdenum-99. Medical isotopes are used in nuclear medicine, for both diagnosis (nuclear imaging) and treatment (interventional nuclear medicine).These isotopes are currently produced in special nuclear reactors such as the Dutch reactor in Petten which produces about thirty percent of medical isotopes globally. These reactors use a nuclear reaction to produce the neutron radiation needed for the creation of radioisotopes. This requires high cost due to safety concerns and leads to the production of nucleair waste.

The new method of production appears to be a good alternative requiring a smaller installation with lower operating cost and almost completely eliminating production of nuclear waste. The production method also has the potential to produce different radioisotopes than is currently common.

Friday, September 2, 2016

Belgium and Germany take step back from renewable gas

Gas production from the Netherlands' main gas field has been decreasing for years. By 2030 Dutch low-calorie gas exports to Belgium, France and Germany will be finished. This leads to high cost for those countries as they will have adjust to supply consumers with an alternative. Interestingly we see that the Netherlands has a totally different strategy to adopt than Belgium and Germany.

Belgium and Germany
Belgium and Germany use both Dutch low-calorie gas and high-calorie gas. Some parts of their grids are suitable for low-calorie gas while other parts are suitable for high calorie gas. In Belgium low calorie gas is mostly used in Flanders and Brussels, while Wallonia uses high calorie gas. In Germany low-calorie gas is used in the northwest near the main Dutch gas field.
To adapt to reduced imports from the Netherlands Belgium and Germany plan to adapt their grids to be suitable for high-calorie gas. The first German projects have already been completed and new conversion projects have been announced.

The Netherlands
In the Netherlands we see a totally different approach. The goal in the Netherlands is to almost completely eliminate CO2 emissions by 2050. Investing to make the gas grid suitable for continued use of fossil natural gas does not seem to make much sense in that light. The Netherlands therefore are investing in three main strategies:
1. energy saving
2. alternative sources of energy mostly for domestic heating such as geothermal heat, solar heat, heat pumps, electric heating etc.
3. increasing production of renewable gas (called green gas in the Netherlands).
For now the Netherlands are also investing in increasing its capacity for blending down high-calorie gas to low-calorie gas by adding nitrogen. But over time high-calorie natural gas will mainly become a backup for when there is insufficient green gas.

The use of a low calorie gas grid has advantages for increasing the share of renewable gases. Upgrading biogas to low-calorie gas quality is cheaper as there is no need to add propane and butane to reach the high-calorie value. It just requires removal of some of the CO2. At blending stations part of the nitrogen can be replaced by unupgraded biogas and hydrogen. To this end hydrogen can be produced on the spot using power-to-gas technology and biogas can be piped in. The Netherlands are funding research to lower the cost of green gas production and facilitate the use of new gases.
On the contrary a switch to high-calorie gas makes the transition to a future based on renewable only more difficult to reach.

Saturday, July 9, 2016

Energy neutral seawater desalination process

Post-doc Marjolein Vanoppen at the Belgian University of Gent published an idea for an efficient energy neutral process for desalination of sea water.

Desalination of sea water normally is done using a process called reverse osmosis, which uses membranes that allow water to pass through, but keeps the salt behind. This process normally uses a significant amount of energy.

To tackle this problem, Ms Vanoppen had a look at Blue energy, the fancy name for osmotic power. This is a process where almost the reverse takes place: salt from seawater passes through a membrane into sweet water in order to generate electricity.

Now when you generate power using blue energy, you end up with a lot of brackish water. The idea by Ms Vanoppen is to use the brackish water as an input for the production of sweet water. That looks pointless since your input is also sweet water, but the idea is to utilize a sweet wastewater stream like sewage water. This stream cannot easily be converted into drinking water, but is good enough for generating the power needed to desalinate the brackish water.

 The final result is an energy neutral process for producing tap water.

Energieneutraal proces voor ontzilten zeewater

Op NU.nl stond gisteren een brak artikel over het ontzilten van zeewater. De schrijver van het artikel had er blijkbaar niets van begrepen en liet dat merken door een volstrekt onduidelijk artikel te publiceren. Na een bezoek aan mijn vriend Google vond ik een link van de bron. Ook deze bron was niet heel duidelijk, dus vandaar dat ik het in dit artikel nog eens uit probeer te leggen.

Om te beginnen hebben we zoiets als Blauwe energie. Dat vormt de kern van het idee, maar het lijkt er op dat dit bij het schrijven van het artikel bewust vaag moest worden gehouden, omdat ze nu eenmaal niet zelf had verzonnen. Blauwe energie in het kort houdt in dat er energie opgewekt kan worden door zout (natriumchloride) door een membraan naar zoet water te laten stromen. Dat is min of meer het omgekeerde van ontzilten. Het resultaat is brak water. De voorwaarde om deze energie op te wekken is dat je zowel zoet als zout water hebt.

Het idee van de promovendus Marjolein Vanoppen van de Universiteit Gent is nu om het brakke water, plus de energie te gebruiken om zoet water te maken. Dat lijkt nogal zinloos omdat je er zoet water in moet stoppen, maar het idee is om daar vuil zoet water (bijvoorbeeld rioolwater) voor te gebruiken. Normaal wordt zulk water vaak gewoon op zee geloosd, maar je kunt er dus eerst nog blauwe energie mee opwekken.

Het resultaat is een energieneutraal proces waarmee je uit afvalwater en zeewater drinkwater kunt maken.

Tuesday, June 28, 2016

EU blocking UK trade deal may end EEA

Now that we have seen a lot of responses to the Brexit referendum, we have seen a lot of fearsome scenario's. I personally expected the UK to immediately start to make friends with EFTA. To date however it is still unclear whether the UK will travel this road. There are basically three options for the UK:
1. the Norwegian model
2. the Swiss model
3. the Canadian model

Norwegian model
The Norwegian model involves joining EFTA and the EEA. From the media this seems like an unpopular model since it would mean that the UK would still have to follow many EU regulations and would still have to pay contributions to a number of EU programs. The plus side is that it would continue UK access to the European common market place. In addition to Norway, this model is also used by two other EFTA members: Iceland and Liechtenstein.

Swiss model
The Swiss model also includes EFTA membership, however Switzerland is no member of the EEA. Instead it has a number of bilateral agreements for trade with non-EFTA members.

Canadian model
Canada is no EFTA member and therefore cannot join the EEA. Instead it is now working on an elaborate trade agreement with the EEA called CETA.

Both the Swiss and Canadian model would require a new trade agreement between the UK and EEA. A number of politicians however seem rather reluctant to give the UK a good deal. They hope that a bad deal - even if it hurts themselves as much as it hurts the UK will stop other countries from leaving the EU.

Tragically it may actually push some of the UK's trading partners out of the EU and/or EEA. Ireland
will be a major victim and although support for the EU is currently strong, that support may waver when other EU countries block a good deal with the UK. Although the focus now is mostly on the EU, the EEA is also in danger. Iceland and Norway may favor relations with the UK over the EEA and adopt the Swiss model instead, allowing them to make their own trade agreement with the UK, rather than wait for an EEA deal that may never come.

EFTA may even try to negotiate an alternative deal with the EU that much more resembles the CETA or TTIP agreement than the current EEA agreement. Such a deal would create a ready alternative to EU membership for all members considering leaving the union.

Sunday, June 26, 2016

Will the EU collapse after Brexit?

Now the UK has voted to leave the EU, the question arises which nation is next. Austria is a likely candidate as well as Denmark and the Netherlands.

The reason is simple. For the UK one of the main reasons to leave the EU is that it had become a transfer union, transferring large amounts of British pounds to southern and eastern member states. The UK was a large net-contributor to the EU. They demanded a reform. The EU rejected those demands. And the rest is history in the making.

Without the UK other states will have to contribute even more to keep the flow of money going. And without the UK there will be one large EU member less to vote against further increasing that flow of money.

Tensions have already risen about this before the Brexit referendum. Now the exit is open. Austria, Denmark and the Netherlands (Nexit) will leave sooner or later. The post-Brexit budget discussions are a likely trigger. And when it happens the pressure increases even more and even more countries will follow: Finland, Sweden. France has always been self-centered and won't hesitate to follow once it suits them. Germany will not be able to avoid the discussion once its direct neighbors start leaving. The EU will fold ... unless it manages to reform in time.

Get rid of the transfer union before it's too late.

Friday, June 24, 2016

Can Scotland #Bremain?

While the UK as a whole voted to leave the EU, a majority in Scotland, Northern Ireland and Gibraltar voted to remain in the EU. As the results sink in voices appear to break up the UK.

The Scots consider a new referendum about leaving the UK as in their earlier referendum one of the arguments to stay in the UK was that leaving would mean leaving the EU as well. That point is no longer valid. This means that a new referendum might be more successful than the last one.
In Northern Ireland Sinn Féin called for a referendum to reunite with Ireland. Such a referendum however seems pointless as those in favor of the union with the UK have the majority in Northern Ireland.
At the same time Spain sees an opportunity to try to regain Gibraltar. It is likely that Spain will at least demand some concessions regarding Gibraltar in exchange for a new trade agreement with the UK.

A split between Scotland and England seems inevitable. At the same time it would be preferabele if a way can be found to do this that leaves Scotland within the EU. We need to come up with some creative ideas on how to make this work out.

I have two ideas on how to do this, both have their problems, but with enough will from the Scots, other Brits and the EU, anything may be possible.

The ideas are:
1. England and Wales leaving the UK
2. Only part of the UK leaves the EU

1. England and Wales leaving UK
The first option is the disintegration of the UK. Although this sounds rather radical, it does not necessarily have to be that way. If we look at the Island of Man, which is not a part of the UK nor the EU, we can see how two countries can work together closely. The Island of Man is working closely together with the UK and both fall under the British crown. The relation between the new British Kingdom and the Kingdom of Scotland, could be very similar. The creative part in this construction is where at least in name England and Wales leave the UK and not Scotland. That way Scotland can remain part of the EU. Unknown is whether Northern Ireland and Gibraltar would prefer to remain in the EU and go with Scotland or stay with England and Wales.
And England and Wales may need some convincing. They have no intention to initiate a split with Scotland and would require a good deal in exchange to agree to such a scenario. Part of this deal could be for England and Wales to remain a part of the European Economic Area (EEA), which could require EFTA membership or a new unanimous agreement between the EU, EFTA and the new British Kingdom.

2. Only part of the UK leaves the EU
The second option seems even more far-fetched. It is common for EU members to have part of their country not in the EU. Denmark for instance has Greenland outside the EU. Such a construction is not used for parts of countries that are located within Europe, but with enough will we can imagine such a construction being created. Such a construct would keep the UK intact although it would require a greater level of autonomy for Scotland. Scottish ministers may be assigned to handle EU affairs for all of the UK. Again there is no telling what place Northern Ireland and Gibraltar would choose for themselves in such a construct.
The EFTA solution is off the table here as only states can join EFTA. So for England and Wales to join the EEA in such a construction, the EFTA and/or EEA agreement will have to be amended.

Update with some parts from an article from Reuters:
According to the article Scottish First Minister Nicola Sturgeon vowed today to protect Scotland's EU membership and said a fresh independence referendum was possible after Britain voted to leave the EU. "We will seek to enter into immediate discussions with the EU institutions and with other EU member states to explore all possible options to protect Scotland's place in the EU". "A second (Scottish) independence referendum ... is very much on the table" she said.
Scots rejected independence in the 2014 referendum by 55-45 percent and at the time the vote was considered a decisive verdict for a generation. Since then support for independence has not shifted significantly, according to polls.
But on Thursday, the United Kingdom voted overall to leave the EU, but Scots voted by 62-38 percent to remain. Sturgeon's SNP says many Scots opted against independence in 2014 because they believed that was the only way to guarantee EU membership.
The SNP argues Thursday's outcome changes the case for independence, and many Scots may reassess their 2014 vote. Sturgeon said on Friday a new referendum was "highly likely".
After meeting ministers in her devolved government on Saturday, Sturgeon said Scotland would not allow its EU membership to be taken away and would seek to build broad-based support at home and abroad to maintain it.
Other EU governments are wary of encouraging the Scottish overtures, despite some increase in sympathy around the bloc for the position pro-European Scots now find themselves in.
EU diplomats stressed that Scotland faces many hurdles to joining a bloc consumed by Brexit and that several veto-holding member states, notably Spain, fear a Scottish secession could boost their own separatist movements.
The Scottish Greens, the parliamentary kingmaker for Sturgeon, said any new vote should be decided by "clear public appetite", but included the independence option.
"It is too soon to say whether and when a further referendum on Scottish independence will take place, but in the wake of the EU referendum result few people will doubt that it must be on the table," a spokesman for the party told Reuters.

Willie Rennie, leader of Scotland's pro-EU Liberal Democrats, said in a statement he had committed his party to backing Sturgeon's EU negotiation process, but had received a guarantee this was not a ruse for a new independence drive.