to BNPP or not to BNPP

had just finished reading winnie monsod’s inquirer column BNPP sturdier than Fukushima plant when i got this fwd email from flor lacanilao, a reaction from AC de Dios of PhilScience@yahoogroups.com to a philippine star article Despite nuke crisis in Japan, science chief backs opening of BNPP

I think we may be surprised in the end to know what is happening or what really happened inside the troubled reactors in Japan. It is unfortunate that the Philippine science chief jumps into conclusion even without the complete information at hand.

There are two sources of radiation inside every nuclear plant in the world: the main reactor and the spent fuel rods. The uranium fuel rods could only be used for about six years – after that, it has depleted its U-238, to a point that it is no longer economical to keep using. These spent fuel rods, however, are still highly radioactive and are still producing a lot of heat that these need to be stored under circulating water – it takes another ten years before these spent fuel rods could be handled safely. Thus, in every power plant, there is a pool of water that contains the used or spent fuel rods. This pool needs to be circulated, otherwise, it will boil and cotinue to heat, and the zirconium casings protecting the radioactive material will oxidize.

I think the main reactors inside the troubled reactors of Japan were not the problem – After all, the safety of these reactors have been greatly emphasized.So these are contained in super strong stainless containers, probably not just by one but two protective containments. The problem, I believe, concerns the spent fuel rods, the nuclear waste that these plants have been accumulating and stored inside pools, which, of course, are not, inside the strong stainless steel containers. The lack of electricity meant no circulation of water inside these pools.

And these pools began to overheat causing oxidation of the metal casing and production of hydrogen which then cause the explosions. If this is indeed the case, then the problem is almost unsolvable because chances are, the container holding these pools has probably been breached. Therefore, the pools could no longer hold water that is necessary to control the radioactivity of the spent fuel rods. Japan will still try to pour water into the nuclear plants in the hope that the cooling pools will be restored.

It is not only the integrity of a plant against an earthquake or tsunami that is in question. The problem of nuclear waste still requires an answer and if the above is correct, handling and storing the spent fuel rods require as much attention. I think, if one then factors this, it could be easily seen that it is not really economically sound to build and operate a nuclear power plant. If a plant will operate for 36 years, it will have, by the end, an equivalent of 6-cycle nuclear waste (since the rods are useful only for six years) – the design and construction of the plant that will take care of this waste will add tremendously to the cost. This is the question that I think the science chief needs to ask before backing the opening of the BNPP.

Angel C. DeDios
Associate Professor of Chemistry
Georgetown University

but read, too, glenn e. sjoden’s Why nuclear power is a necessity

As a career nuclear engineer, dedicated to public safety and to the advancement of nuclear engineering and nuclear power for the world, this has been devastating — all for want of some diesel fuel, clean water and decent electrical couplings on backup generators. However, that is the truth. If the backup generating (diesel) sources had been properly sited to operate post-tsunami, I wouldn’t have written this article, because the Daiichi reactors would now be stable.

…”What about the waste?” I answer this by asking, did you ever wonder why our French colleagues have 40 years of mostly nuclear power and no waste problems?

Like most nations, they recycle their used fuel, since 95% of the fuel can be recycled back into the reactor and used again, making nuclear power the most “green” energy source out there. Burying the waste, as we do in the United States, is completely wasteful, and other nations, including Japan, recycle all of their used fuel.

We do need to take pause, as the events in Japan are certainly immense, and we need to collectively ponder ways to improve at all levels. However, I believe we need to be smart and carry on the mission of nuclear power for a sustainable future, learning from our mistakes. Likewise, I don’t stop driving my gasoline powered automobile when I hear about an oil refinery accident. Let us be smart, but let us also be sensible and realistic.

as for the BNPP, no doubt it would take a lot of upgrading, specially with regard to recycling the nuclear waste.

and what about the finding of international experts that the BNPP was built near major earthquake fault lines.   is it true that PHILVOLCS Director Renato Solidum Jr. has debunked this, saying there is no evidence to support the presence of an active fault beneath the nuclear reactor building of the BNPP or within the BNPP area?   meaning, not near enough to be affected by a major major earthquake?   really?

don’t know na whom to believe.  i’m still anti-nuke.

karma daw

nakarma daw ang japan for past war atrocities, say some chinese bloggers (and some pinoy commenters in pinoyexchange.com), to the dismay of the chinese government.   read China’s official sympathy for Japan’s woes undermined by blogger’s glee.

read too The State Hornet’s Editorial: Disaster in Japan is not ‘karma’ with which i tend to agree.   kung tutuusin pinagbayaran na ng japan lahat ng iyon when the u.s. dropped atomic bombs on hiroshima and nagasaki in 1945 killing 150,000 to 240,000 people  (which is not to condone that heinous act of revenge, it was totally uncalled for, tokyo was negotiating na for surrender).

if i’m thinking karma at all, it’s in the sense of, umm, knowing this area of the world to be earthquake prone, why are we all still here?   why did our ancestors not have the sense to move away to safer places?   i suppose because earthquakes didn’t happen that often, and never killed off entire populations?

in japan’s case, they got very smart about building earthquake proof buildings, but were not smart enough to stay out of coastlines, never imagining that tsunamis could come so instantly?   and they just weren’t careful enough pala about upgrading safety features of old model nuclear plants, read Glenn E. Sjoden’s Why nuclear power is a necessity

dito sa pinas, if a big one hits metro manila, and estimates of widespread devastation prove true, because many of our buildings are poorly weakly constructed, and many of them are built on top of a major fault line, yan, yan ang karma.

earthshaking, heartshaking

i can’t blame PUP for sending students home after calls from panicky parents and guardians, never mind that the radiation scare being relayed via texts and twitter are said to be baseless because the wind is moving away from us, or so ricky carandang says.   but what if the wind changes course, as is known to happen occasionally.

in times like these, of devastating earthquakes and damaged nuclear facilities in japan, and it’s impossible to know exactly what is happening and there’s a sense that we aren’t being told everything, parents are well within their rights to want their kids home with them, just in case.   not that home would be absolutely safer than school, but being together in scary times is less aggravating than being apart.

and really, i doubt that parents are panicking just over the radiation scare.   it’s only one layer on top of deeper fears of a long-overdue earthquake striking here, where we’ve been building on top of the marikina valley fault that runs through metromanila, when we’re so unprepared and can only think as far as emergency kits, if we have the money for it.   the only thing going for us, we now see, is that we don’t have a functioning nuclear plant, consuelo de bobo.

impeaching mercy

i don’t get why senators pangilinan and guingona are urging the ombudswoman to resign rather than be impeached and go to trial.   “to spare the country of this conflict” daw.   more like, to spare us the truth?   the facts?   of the cases against her?   but why?   masyado bang maraming madadamay?   but why spare them?

or is there a chance na mapapahiya lang sila, whether the lower or upper house, because they don’t have the numbers pala?

and this recommendation of senators to impeach her for the plea-bargain agreement with garcia, when there is already an impeachment process going on in the lower house for other cases — ano ‘yon?   obvious naman that that would have to wait until next year, should the ongoing one fail.   besides, merceditas says it’s for the sandiganbayanto decide the plea-bargain complaint against her, not the senate.

what’s going on, honorable senators?