D.R.W DEGREE COLLEGE
TRAINING PROGRAMME ON WATER ANALYSIS
REPORT
2018-2019
All
the Science Departments (Botany, Zoology, Chemistry, & Biotechnology)of
D.R.W .College.33(IC.B.Z , II C.B.Z ,III C.B.Z & IB.B.C) students along
with 6 Teaching staff and 01 Non Teaching staff members, went one day Training
programme on water analysis On 15.03.2018 to Rural water supply &
Sanitation( Irrigation department)in Gudur S.P.S. R. Nellore.
In
morning session G.Balaguravaiah, WQM Labs Consultant Explained the process of
water analysis with brief introduction and procedures in afternoon session
practical orientation by different water samples collected from different areas
in Gudur mandal.
Drinking water having some characteristics
& minerals required for health management these are analyzed by differentparameters.
Firstly we can go to observe the odour of water and turbidity these indicate
purity of water and microbial contamination and also test the range of PH
in
drinking water up to 6.5 to 8.5. These are the primary tests of water
next titration analysis of the water by alkalinity. For alkalinity test 25ml
of water sample is taken in conical flask add one or two drops of methyl orange
/phenolphthalein indicator is added to the water sample and titrated by H2
SO 4 the sample colour
changes light yellow to light pink the burette reading noted and calculated.
Hardness of water indicates the
calcium & magnesium bicarbonates present in the water limits from 300-600
Mg/lit, excess of calcium & magnesium bicarbonates indicates Hardness
is calculated by using the ammonium buffer & EBT or SBT indicator, titrated
by EDTA solution the sample water changes wine red to blue colour values are
noted and calculated by using burette readings.Chlorides limits in water 250-1000
Mg/lit excess of chloride is harmful to health these are measured using the
indicator K2Cro4 titrated by Agno3 the
sample water changes to yellow colour values are noted &calculated the
percentage of chlorides present in the water sample. And also measure the
Nitrates, Iron, Sulphates, Manganese, Fluorides and Magnesium all the elements
are essential but it doesn’t cross the maximum limit in the water sample. Nitrates
0.05, Iron 0.3 to 1.0, Sulphates 200-400 Mg/lit, Manganese 0 to 0.5, Fluorides’
0.5 to1.5 Magnesium 30 to 100 Mg/lit. Excess harmful to health it doesn’t
useful to drinking purpose.Electrical conductivity of water, toxic substances
are also measured in the water samples these are very useful to the students
(DR.V.BHARATHA
LAKSHMI)
PRINCIPAL
STAFF MEMBERS
Dr.M.Bhavani
Ch.Lalithakumari
B.Sailaja
P.Gayathri
P.Subbarathnamma
N.varalakshmi
V.Sucharitha
G.Prasanthi
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