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Dear SR JI

I don't think any other place in India is better off than Kolkata. My suggestion would be to go in for
an exchange program - Aquaguard to Reviva [ RO] both Eureka Forbes, or a Kent
[if you are a Hema Malini fan].

For the hot and humid weather like Chennai, Eureka Forbes Reviva domestic R.O. system - 8 ltrs/hour
should solve the problem for the daily cooking and drinking consumption of a family of four.

Sir Ji, before getting an RO system installed please get the TDS [ Totally Dissolved Salts ] level checked.
The sales person should be having the equipment - you can take the digital reading yourself. It's a small
pen-like instrument [ more like a digital thermometer ] where you can immerse the two electrodes into the
water and watch the digital display, yourself.

"Before & After" readings will tell you how much salt has been removed. You may have to make some plumbing
provisions for evacuation of 'Reject' water'.

As with every part of India, there are bound to be a number of locally assembled systems. Please don't fall
prey to a con game - a branded system from a reputed company will always be better in the long run.

I have personally tried EF's Reviva and Kent - both work well. After-Sales Service - both are equally bad.

Yay Yem
 
post 1551. Thank you shri Anand Manoharji,

I want to know whether any attachment for aquaguard is available for removing orsan from water and how we can confirm orsan has been removed. For example when iron is removed from water we can see brown colour sediments settled in the filter and the water is white after iron is removed. When the orsan mixed water is stored in a pet bottle and contact with sun light for a day or two the bottle is tainted with blue colour.
 
Dear SR Ji

I really haven't come across 'orsan' as a pollutant / contaminant of water.
I will need to check with somebody before I can give you a sensible reply on this one.

In the meantime, if you could elaborate on 'orsan', that would be helpful in getting the
right counsel . At the moment, I don't want to toy around with assumptions like 'arsenic' etc.

Kindly elaborate.

Yay Yem
 
Dear Sir,

orsan is a slow killing poison which is available abundant in the lands of Kolkata. When the water is pumped it also mix with water and is given for day to day use. In our apartments it was told that the orsan was there and seldom the bore water was used and majority of the tenents are officers on transfer from corporation bank or national insurance the bengalis did not bother to tell us. Recently the high court has found out the deposits of orsan and some how it has mixed with the water supplied by them it came to lime light. Now the Bengalis they have installed ORWO water treatment facilitated Aquaguards and they advised us to go for attachment of orsan remover with the existing Aquaguard. Since I have no idea and already you have knowledge in that line I just wanted to know about availability of such attachments and how to confirm its working.
 
#1.Rocks and Minerals




A mineral is a naturally occurring substance that is solid and stable at room temperature. It has an ordered atomic structure and is representable by a chemical formula. A rock can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition.

The exact definition of a mineral is under debate, especially with respect to the requirement a valid species be abiogenic, and to a lesser extent with regards to it having an ordered atomic structure. Mineralogy is the study of minerals.

There are over 4,900 known mineral species; over 4,660 of these have been approved by the International Mineralogical Association ( I.M.A ).

Over 90% of the Earth’s crust is composed of Silicate minerals. The diversity and abundance of mineral species is controlled by the Earth’s chemistry. Silicon and oxygen constitute approximately 75% of the Earth’s crust, which translates directly into the predominance of silicate minerals.

Chemical and Physical properties distinguish the minerals. Chemical composition and crystal structure distinguish the various species. These properties are influenced by the mineral’s geological environment of formation. Changes in the temperature, pressure, and bulk composition of a rock mass cause changes in its mineralogy. When the temperature and pressure change, its mineralogy changes as well.

Minerals can be described by their physical properties, which relate to its chemical structure and composition. Crystal structure, habit, hardness, luster, whether or not it is diaphanous, color, streak, tenacity, cleavage, fracture, parting and specific gravity are the common distinguishing characteristics. Reaction to acid, magnetism, taste, smell and radioactivity are the more advanced tests.

Minerals are classified by key chemical constituents. Silicates, sulfides, oxides, halides, carbonates, sulfates, phosphates and naive elements are the important mineral groups.
 
#2. Minerals and Gemstones.



Basic definition of a mineral:

The general definition of a mineral encompasses the following criteria

1. Naturally occurring

2. Stable at room temperature

3. Represented by a chemical formula

4. Usually abiogenic

5. Ordered atomic arrangement

The first criterion means that a mineral has to form by a natural process, which excludes anthropogenic compounds.

Stability at room temperature, in the simplest sense, is synonymous to the mineral being solid at 25°C. Classical examples of exceptions to this rule include native mercury which crystallizes at -39°C, and water ice, which is solid only below 0°C.

Modern advances have included extensive study of liquid crystals, which also extensively involve mineralogy. Minerals are chemical compounds, and as such they can be described by fixed or a variable formula. Many mineral groups and species are composed of a solid solution; pure substances are not usually found because of contamination or chemical substitution.

The formal definition of a mineral approved by the IMA in 1995:
A mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes.

In addition, biogenic substances were explicitly excluded. “Biogenic substances are chemical compounds produced entirely by biological processes without a geological component (e.g., urinary calculi, oxalate crystals in plant tissues, shells of marine mollusks, etc.) and are not regarded as minerals. However, if geological processes were involved in the genesis of the compound, then the product can be accepted as a mineral.

To put it in a nutshell…

All gemstones are minerals but all minerals are not gemstones.

All minerals are rocks but all rocks are not minerals!
 
#3. Agate





Agate is a micro-crystalline variety of Silica, mainly chalcedony. It characterized by its fine grains and bright colors. Agates are found in various kinds of rocks, but they are classically associated with volcanic rocks and certain metamorphic rocks.
The Greek philosopher and naturalist, Theophrastus discovered the stone along the shore line of Achates river (now called Dirillo in Sicily) sometime between the 4th and 3rd centuries BC.
Agate is most commonly used for hand-stone carving and has been recovered at a number of ancient sites, indicating its widespread use in the ancient world.

Industry uses agates chiefly to make ornaments such as pins, brooches, paper knives, inkstands, marbles and seals. Agate is also still used today for decorative displays, beads, carvings as well as face-polished and tumble-polished specimens of varying size and origin.

Because of its hardness and ability to resist acids, agate is used to make mortars and pestles to crush and mix chemicals. Because of the high polish possible with agate it has been used for leather burnishing tolls for centuries.

Idar-Oberstein was one of the centers which made use of agate on an industrial scale. In the beginning locally found agates were used to make all types of objects for the European market. This became a globalized business around the turn of the 20th century Idar-Oberstein imported large quantities of agate from Brazil.

Making use of a variety of proprietary chemical processes, they produced colored beads that were sold around the globe. Agates have long been used in arts and crafts. The sanctuary of a Presbyterian church in Yachats, Oregon, has six windows with panes made of agates collected from the local beaches.
 
Dear Tmt VR

It is heartening to see your post 1555, 1556, 1557 & 1558 - mainly to note, with a sigh or relief,
that you are still there.

Now, in post # 1554 SR Ji has tried to explain his problem, but things are still quite hazy.

Could you please throw more light on this ?

Yay Yem
 
Dear SR Ji

Here's what I found for you. Presuming that "ORSAN" is a colloquial term for salts of Arsenic mixed in
ground water, the two attachments suggested for the Aqua Guard might be sufficient.

School of Environmental Studies [ SOES ], Jadhavpur University, Kolkata has done extensive research
on the subject.

Should you so require, I could mail the study report that you may use as a guideline.

Yay Yem
 
My time is nearing midnight.
I shall try to catch up the exchange between
S.R and A.M and kilarufy whatever I can tomorrow!
I just completed illustrating my blog of proverbs. Whew!!!


Anand Manohar said:
Dear Tmt VR

It is heartening to see your post 1555, 1556, 1557 & 1558 - mainly to note, with a sigh or relief,
that you are still there.

Now, in post # 1554 SR Ji has tried to explain his problem, but things are still quite hazy.

Could you please throw more light on this ?

Yay Yem
Click to expand...
 
Hope I have managed to confuse you more than you were before! :rolleyes:
By the time you read, understand and assimilate all these info,
you would be knowing how to eliminate arsenic from drinking water
OR learned how to live happily with it!!! :)
 
Dear Tmt VR

Actually, my mistake, I should have laid you off the trail.

You are actually spot on. I was myself lost on the subject of 'Orson' , until I figured-out that
it is a colloquial term in West (!) Bengal and Bangla Desh. Like Parivartan becomes Poriborton and
Mamatha becomes Momotho, Arsenic becomes Orshon !

It is a lay-man's term for a mixture of Arsenic salts that contaminate ground water in these parts .

It is a major problem recognised by the WHO, and ICMR. The School of Environmental Studies [SOES]
Jadhavpur University, Kolkata has done extensive work on the subject and come up with a highly
successful, economically viable, low-technology system that is being implemented by the Govt of WB
even in rural areas.

I have the complete report in my custody and waiting for SR Ji to furnish his mail id. This is too large
an attachment to me sent as a PM through this forum - unless Praveen Ji provides me more space.
Maybe the information will be useful for other members / their friends.

Thanks for the efforts put in by you.

In the meantime, [ I shouldn't be suggesting on this Forum ] without offending the sentiments / dietary
habbits of conventional, orthodox Brahmins - GARLIC in the diet is known to be great in eliminating
arsenic ingested in the system.

Thanks, once again

Yay Yem [ or VEE TEE ]
 
In the meantime, [ I shouldn't be suggesting on this Forum ] without offending the sentiments / dietary
habbits of conventional, orthodox Brahmins - GARLIC in the diet is known to be great in eliminating
arsenic ingested in the system.

Are these people still around???
 
#4. Alexandrite.

images
images


Alexandrite is the color-changing variety of the mineral species chrysoberyl.
It is one of the birthstones for June. Alexandrite is said to enable its wearer to foresee danger.

The most sought after alexandrites are a lovely green in daylight or fluorescent light, but change to red or slightly purplish red in the incandescent light from a lamp or candle flame.

Abundant alexandrite deposits were first discovered in 1830, in Russia’s Ural Mountains.
Those first alexandrites were of very fine quality, and displayed vivid hues and dramatic color changes.

The gem was named after the young Czar Alexander II, and it caught the country’s attention because its red and green colors mirrored the Imperial Russian flag.

Now most alexandrite comes from Sri Lanka, Brazil, India, Tanzania, and Madagascar.
The newer deposits contain some fine-quality stones, but many possess less precise color change and muddier hues than the nineteenth century Russian alexandrites.

Alexandrite has a hardness of 8.5 on the Moh’s hardness scale, and has excellent toughness.
Alexandrites are typically transparent and at times some of them may contain fingerprint and silk inclusions.

Alexandrites typically come in sizes from tiny to 5 carats. Larger stones are rare.
 
Dear Tmt VR

I have since sent the report & recommendations of Jadavpur University to Sri S Ramanathan
with a request that he take it on from here.

Now, talking about orthodoxy - Yes Madam, there still are such people. Year 2010, I was travelling back
from New York to Chennai [ you know the flight time ] and was sat next to a Mami , who wouldn't even
take bottled drinking water from the hostess - 22 hours and not even a drop of water - I thought that
was carrying Achaaram too far.

What made things worse for me was that I couldn't enjoy my drinks, sitting alongside a lady who
voluntarily chose to remain famished and dessicated - all the way to my home town !

Yes, I have a way of getting myself into lousy situations.

Yay Yem
 
What made things worse for me was that I couldn't enjoy my drinks, sitting alongside a lady who
voluntarily chose to remain famished and dessicated - all the way to my home town
Click to expand...
But Yay Yem Sir, i hope you did not famish like her... This is really pathetic.. Yes i also have a friend who or his family members do not take Onion, leave alone Garlic!!

Cheers!!
 
post 1571. Thanks VR Madam. For the past 6 months myself and my wife are consuming garlic (9 to 10 pals) every day night after boiling the same in the milk. Now through you I understand that It is helpful in removing arsenic effects from our body. One more thing I want to know whether arson can be removed by boiling the water and whether the pet bottle will be stained with a light blue colour (water stored in pet bottle after the same is purified by e-boiling aquagurad). Shri Anand Manohar has sent the report which may be useful for people who wish to install a water treatment plant in an apartment. The report does not give the specific places where arson is found or the attachments available in the market.
 
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