Industrial Water Purification
Info on one established at our small site (workplace), where i had to research, what parts our system should be composed of. The name industrial proved to mean two things:
1. water purification modules are bigger. Can it mean that, since water is flowing through a larger mass of purifier material, it ought to get cleaner?
2. System is assembled by professional technicians. Who don't mistakenly put two system elements together in a reverse order, like the putting the contaminated filtered sludge outflow into the kitchen tap outflow (please hold your glass under there) as reported in a lot of cases. Also who don't put replacement parts necessary in 2/3/6 months together in reversed order, like it happens with retail consumers.
Tapwater goes in:
50 micron filter first, containing white crystalline looking pellets:
_http://www.micronwaterfilterguide.com/wp-content/uploads/50%20micron%20water%20filter.jpg
Big activated coal filter, height 1.4meter, like the green thing on the photo below:
_http://www.recycler.com/Uploads/9a11a9eb-266e-49cf-94a8-ae5ccbabf2a4-500.jpg
30 micron filter
Two UV filters beside each other (lamps) supposedly killing organisms, bacteria, etc..:
_http://ezermester.hu/articles/images/2009/10/haztartasiviz_02.jpg
20 micron filter
purified water comes out. Needs to disgorge a few liters into the drain until it "comes online". Price of the system was around 700.000 HUF = ~2500 EUR = ~3600 USD. (275HUF/EUR, 193HUF/USD) including assembling.
The slower water flows through the system, the better the filtering performance and cleaner the water. In goes common tap water possibly gotten from the really contaminated Danube in our capitol, this tap-water is filtered at some communal industrial water-plant. Supposedly they leave in the hormones from pills and a lots of evil things, because they don't have the tech (funding) to get those out.
After just a few test runs (our small plant in the Capitol isn't operative yet) in the first 50 micron filter there appeared light brown patches of algae like sludge. Appetizing, mm.. The water tastes like filtered water gotten from a mop-up bucket. (I'm a country guy) I wonder why even the cheap mineral water tastes better, that is gotten from a well (same city) gaining its water - hopefully - from the groundwater table and not the river Danube. The other sort of mineral water i drink just for it's awesome taste is claimed to be gathered from 13 real springs in nature. Well, i tasted the best spring-water in my life years ago, coming from a real natural spring. Since then i prefer mineral water. Read enough horror stories about small and cheap "complete" retail solutions - price being for the most expensive ~190.000 HUF = 690EUR/984USD to not trust these at all.
If i ever will undertake water purification, it will be specialized equipment using as source a well tasting and expensive mineral water sort that was laboratory tested first to see what to take out of it.
The resulting purified water from our system was sent to a private owned laboratory 'specializing' in food and water testing. They first told us, the test parameters (toxic stuffs) we gave them and we would have liked to be measured, were for testing public bath water . Err.. what? I told them the parameters are being used by the big guys at the Public Health Office for water purity. After this they sent their official report. We asked them for their opinion as well: is this purified water acceptable to be used to make in yogurt drink? The answer was, that the KOI ps content was too high so we cannot use it to make yogurt drink.
The young engineer - possibly 'of the new formation' (G.) told me, that i can drink this water at home, safely, just it cannot be used by the food industry, namely we won't get the certificate.
So i can drink it, but it is too poisonous to drive through the food industry, to be given to people to drink it at the end.
Good thinking!
;D