1. Comparison of Pre and Post Nualgi treatment water quality test results
of Pond, at Ansal’s Sushant City, Panipat, Haryana, India. Treatment
commenced from 29th January 2016.
S. no Parameter Pre
treatment
results
Post-
treatment
results
Protocol Remarks
1 Color Light Yellow Brown Visual
2 Odor Disagreeable No foul odor IS-3025 (P-5)
3 Turbidity, NTU 336.6 3.78 IS-3025 (P-
10)
4 pH value 7.53 5.78 APHA
Edt.
5 Electronic conductivity,
µs/cm
1147 212 -do-
6 Total suspended solids,
mg/L
154 14 -do-
7 Total Kjeldahl nitrogen,
mg/L
18.76 0.28 -do-
8 Total phosphates, mg/L 12.0 < 1 -do-
9 Dissolved oxygen, mg/L 0.82 7.67 IS-3025 (P-
38)
10 COD, mg/L 480 20 APHA
Edt
96 % decrease in
CoD levels in 4
weeks of
treatment.
11 BOD, mg/L 160 5 -do- 97 % decrease in
BoD levels in 4
weeks.
12 Nitrate, mg/L 14.36 1.09 IS-3025 (P-
34)
13 Silica, mg/L ND ND APHA
Edt
14 Surfactants, mg/L ND ND APHA
Edt
15 Total dissolved solids,
mg/L
868 98 IS-3025 (P-
16)
16 Free chlorine residual,
mg/L
ND (DL-0.1) ND (DL-0.1) APHA
Edt

2. Microbiological Analysis:
1 Total coliform, MPN/100 ml 350000 170 IS-1622 Levels decreased
by 99.95 %
2 Faecal coliform, MPN/100ml 11000 14 IS-1622 Levels decreased
by 99.9 %
Phytoplankton’s:
3 1- Blue, per ml 15300 Absent IS-1622
2- Green per ml 42500 854 -do-
3- Di-atomic, per ml 9100 177 -do-