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hahaha, you're inviting the leeregime moniker to flame you again. :P Cheers, Trout

http://www.gizmag.com/go/8107/ HTI's revolutionary forward osmosis filtration system 22:17 October 14, 2007 PDT By Darren Quick Access to clean drinking water remains a major problem in many parts of the world. Over one billion people lack this basic requirement on a daily basis, and...

July 26, 2009 Yasmin Ahmad dies The pro-family commercial Funeral was one of Ms Yasmin's works. -- PHOTO: MYCS View more photos KUALA LUMPUR - CRITICALLY acclaimed writer-director Yasmin Ahmad, 51, died last night, two days after she suffered a stroke. On Thursday, while giving...

You back in SV? looking for help to get $$ and place to started up. Got any leads? Everyone was begging for $$ when I was there in May-June, didn't seem like a good time to start-up now. Cheers, Trout

what do you think?

* bump up for people who might be interested in this.

*bump up for people who might be interested in this still...

optimal efficiency for power generation turbines are generally around 80% of fully capacity - rough rule of thumb from my pinch analysis process integration course. Singapore actually has a pretty severe case of drug resistant microbes because our GPs pretty much prescribe antibiotics for...

Actually all these technologies are already developed...what's lacking a coherent technology & public policy to push for adoption of such systems. Just my 2 cents. Cheers, Trout

Interesting article, but I don't think many of us has the guts or gumption to follow through... http://www.orionmagazine.org/index.php/articles/article/4801/ Forget Shorter Showers Why personal change does not equal political change by Derrick Jensen Published in the July/August 2009...

sounds like an activated carbon filter. Normally recommended change period for such is every 3-4 months depending on intensity of use. And it doesn't get rid of microbes, but ingesting some bugs now and then builds your immune system. :) Cheers, Trout

Well, its probably more expensive to do what you mentioned (home-based water purifiers) than a 40 ft shipping container style miniature treatment plant. Cheers, Trout

Well, given that Singapore is currently pumping water up the HDBs to store in the water tanks on top to act as water towers (I think this is true for the older flats beyond 10 storeys, not sure if its still the case now)...the miniature plants to supply could be coupled with those storage tanks...

I worked with Zeeweed hollow fibres modules (From Canada, but got acquired by GE), Weise flat sheet UF modules (this is from Germany) before, and they both use suction-based filtration methods, normal operating pressure is around -3 psig (vaccum). That's very low compared to RO (a few hundred...

Erm, I said nothing about distillation - just UF, and not very high pressure filtration at that. Will the amount of piping be doubled? Essentially in a hdb home, only the toilets cistern will be grey-water supplied. Still, that's a huge chuck of your daily water use. O&M costs will definitely...

That's why I'm in this area, doing work on membranes and making suggestions on better process/infrastructure design. Food-Water-Energy shortages will be the biggest challenge facing the project of human civilization in this century. Cheers, Trout

If people got lost in the math, here is the gist: we are getting water from PUB at around the same price as the Arabs are getting their water at from very expensive seawater desalination processes. Cheers, Trout Tommy: SWRO water is normally quoted at $2/cu...think this figure is...

Actually its not that complicated if the alternate water supply pipes are only differentiated near PoU if need be. The water mains just carries the raw reservoir feed water (sand-filtered to rid of suspended solids before it enters the mains) as opposed to tertiary treated fresh water which it...

Actually 1 miniature treatment plant can essentially be contained with a 40 ft shipping container and made to sit on top of a block of flats. I have designed and built a couple of those container membrane plants with sufficient daily flow to supply a block of flats. I actually do think we can...

Nobody knows for sure... Cost is always difficult to estimate - there's capital expenditure cost, and then there's operational expenditure cost. If one want to minimize opex costs, generally the capex goes up. Centralization allows for economies of scale for certain things, like just...