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Water Purification Method Sought: Test Report Attached - Chennai

I have already posted a query and was advised by many experts to retest the water. Hence I have tested again the water sample at King Institute. Guindy, Chennai. Unfortunately the result shows the water is not suitable for drinking. Hence I would like to seek your expert advice on how to make the water potable and avoid the white cement formation.

I have attached an Excel sheet with the detailed results and summary.

Many thanks to all in advance.

Click here for my previous postings

Madheshwaran
makesh400@yahoo.com

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Comments

1.

Dear Madheshwaran,

As per the test report the objectionable parameters are TDS,Total Hardness and the bacterial count. Chlorides are also on higher side. As the TDS is more than 1000 PPM, it is recommended that you should go for R.O. treatment of this water to make it potable.

regards,

AMIT KR. SINGH,
PUBLIC HEALTH ENGINEERING DEPARTMENT,
WATER TESTING LAB, KARNAL-132001(HARYANA)
09416204204/09729248248

Amit Kr. Singh,
Govt. of Haryana,
Public Health Engg. Department,
Water Testing Lab,Karnal-132001(haryana)
09416204204,09729248248,
ak_ranaji3@yahoo.co.in

2.

Dear Madheshwarn

This time as per report attached TDS is 1200 ppm.In bacteriological test MPN coliform/100 ml is 460 whereas safe limit is max 10. There is high growth of mpn coliform so Ecoli should have been detected.

For killing bacteria there are many techniques available in Indian market. Most successful is UV treatment and chlorination. Bleaching powder also kills bacteria but it may alter taste of the water and clothes washing may be trouble some as bleaching powder will fade clothes colors.

Ultra filtration is also available for treating water of high bacteria. Less than 20 micron size bacteria can be easily trapped in these filters.

For drinking there should be less than 500 TDS and hardness should be less than 300 ppm. Allowed max alkalinity in drinking water is 200 ppm.In your water it is 372 ppm.

Now What is the best solution?

For washing and bathing water should be treated with chlorine and carbon filters.
For drinking water this water should be treated in RO membranes which have permeate at 100 ppm TDS and recovery rate more than 60 percent.

regards,

AK Singla
Utilities Engineer
Panipat Refinery
Indian Oil Corporation Ltd
Panipat

AK SINGLA


 

3.

dear mr.madesh,

your water report shows high tds and bacterial presence. This can be treated easily
by installing online filters with chlorination for domestic use. for drinking I would like to advice to go for RO plant.

k.Murugadoss.
Krishnaja engineering
chennai. 600 088
22456593
kdossin@yahoo.com

4.

Dear Madheshwaran,

I do agree that parameters like TDS and hardness are above the permissible limits. However in most of the parts of India this is the case. I will like to recommend three tier system. Simple chlorination and use water for washing. Softening and chlorination or UV treatment for bathing & Domestic RO plant for Drinking. This will be most economical approach for you.

Prof. R. V. Saraf
Director
Viraj Envirozing India Pvt. Ltd.
21 Radhakrishna, Near SBI
Paud Road, Pune 411 038
Tele/Fax: (020) 25433445
Web: http://www.virajenvirozing.com
E Mail: watersgs@vsnl.net
info@virajenvirozing.com

5. WATER PROBLEM

IN THE AREA OF WEST BENGAL, WHERE I LIVE THE TDS OF WATER IS MEASURED 300 TO 380 MG/LTR.iAM USING A UV TREATMENT PURIFIER .IS IT SAFE ? OR SHOULD I OPT FOR RO PURIFIER? IN THAT THE TDS WOULD BE OF 15 TO 19 ONLY .PLEASE SUGGEST ME.

6. Need softener suggestions for house in Chromepet, Chennai

I have recently tested the bore water samples. The results are as follows:

  • Color: 10 Hazen
  • Odour: Unobjectionable
  • PH @ 25o C 6.80
  • Conductivity: 2983 mhos/cm
  • Turbitity as NTU: 7.2 TDS 1972 mg/l
  • Total Hardness as CACO3: 898 mg/l
  • Carbonate Hardness as CACO3: 521 mg/l
  • Non Carbonate Hardness as CaCO3: 377 mg/l
  • Phenolphtalein Alkalinity: Nil
  • Methyl Orange Alkalinity: 521 mg/l
  • Calcium as CA: 258 mg/l
  • Magnesium as Mg: 6 mg/l
  • Chloride as CL: 610 mg/l
  • Sulphate as SO4: 304 mg/l
  • Iron as Fe: 0.5 mg/l
  • Total Silica as SiO2: 44.05 mg/l

I know the water is not safe for drinking because of higher TDS and hardness. Please give me an effective solution for putting an appropriate softener in place. The location of my house is Chromepet, Chennai.

Further to the above, I furnish the following details. 

The construction of my house was started in the month of April 2011.  At that time the water was clean and the colour before any filtering was normal.  However near the borewell a sump was constructed.  The construction of sump was stopped during the month of November due to heavy rain.  Being a low lying area and near by pond the sump was full until February 2012.  The water collected at the sump would have gone into the borewell.  Thereafter from the borewell water a smell used to come.  After April 2012 the smell has stopped.  However every week from the tank I am removing the mud in brown colour which get deposited in the bottom.  When the Motor is on, the brown water used to come in tap also. However after ten minutes of stopping the motor the colour of the water that is coming on the tap would be transparent. 

Is that the results given above is due to this.  If so removing  the mud and impurities from borewell would solve the problem. Advice please.

With regards,
Srinivasan

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