Testergebnis

S. No

Test Parameter

Input water concentration

Output water concentration

% Reduction

MAXIMUM ALLOWABLE
PRODUCT WATER
CONCENTRATION

Applicable standard

1

Total Chromium as Cr

282ppb

BDL<20ppb

>92.90%

50ppb

IS10500:2023

2

Copper as Cu

2740ppb

BDL<20ppb

>99.27%

50ppb

IS10500:2023

3

Arsenic as As

47ppb

3.0ppb

93.61%

10ppb

IS10500:2023

4

Cadmium as Cd

30.8ppb

7.0ppb

77.27%

3ppb

IS10500:2023

5

Mercury as Hg

5.5ppb

BDL<1ppb

>82%

1ppb

IS10500:2023

6

Aluminium as Al

109ppb

28ppb

74.31%

30ppb

IS10500:2023

7

Barium as Ba

9307ppb

BDL<500ppb

>94.62%

700ppb

IS10500:2023

8

Nickel as Ni

94ppb

BDL<20ppb

>78.72%

20ppb

IS10500:2023

9

Iron as Fe

3200ppb

BDL<100ppb

>96.87%

1000ppb

IS10500:2023

10

Silver as Ag

95ppb

BDL<10ppb

>89.47%

100ppb

IS10500:2023

11

Lead as Pb

161ppb

26ppb

83.85%

10ppb

IS10500:2023

12

Zinc as Zn

95 ppb

BDL<50ppb

>95%

10ppm

IS10500:2023

13

Fluoride as F

2ppm

0.55ppm

75.23%

1.0ppm

IS10500:2023

 

DISINFECTANTS

 

 

 

 

 

14

Chloramine as Cl2

3.6 ppm

<0.1ppm

>97.22%

0.5ppm

NSF/ANSI 42

15

Chlorine as Cl2

2 ppm

<0.1ppm

>95.0%

Min. 50% reduction

NSF/ANSI 42

 

PESTICIDES & HERBICIDES CONTAMINANTS

 

 

 

 

 

16

Aldrin

0.247ppb

ND<0.01ppb

>95.95%

0.1 ppb

IS16240:2023

17

Dieldrin

0.242ppb

ND<0.01ppb

>95.87%

0.1 ppb

IS16240:2023

18

Alpha-HCH

0.252ppb

ND<0.01ppb

>96.03%

0.1 ppb

IS16240:2023

19

Beta-HCH

0.242ppb

ND<0.01ppb

>95.87%

0.1 ppb

IS16240:2023

20

Gamma-HCH

0.261ppb

ND<0.01ppb

>96.17%

0.1 ppb

IS16240:2023

21

Delta-HCH

0.25ppb

ND<0.01ppb

>96.00%

0.1 ppb

IS16240:2023

22

Chlorpyrifos

0.242ppb

ND<0.01ppb

>95.87%

0.1 ppb

IS16240:2023

23

DDE-op

0.255ppb

ND<0.01ppb

>96.08%

0.1 ppb

IS16240:2023

24

DDE-pp

0.264ppb

ND<0.01ppb

>96.21%

0.1 ppb

IS16240:2023

25

DDD-op

0.252ppb

ND<0.01ppb

>96.03%

0.1 ppb

IS16240:2023

26

DDD-pp

0.25ppb

ND<0.01ppb

>96.00%

0.1 ppb

IS16240:2023

27

Endrin

0.25ppb

ND<0.01ppb

>96.00%

0.1 ppb

IS16240:2023

28

DDT-pp

0.25ppb

ND<0.01ppb

>96.00%

0.1 ppb

IS16240:2023

29

Endosulphan-Alpha

0.261ppb

ND<0.01ppb

>96.17%

0.1 ppb

IS16240:2023

30

Endosulphan-Beta

0.245ppb

ND<0.01ppb

>95.92%

0.1 ppb

IS16240:2023

31

Endosulphan Sulphate

0.24ppb

ND<0.01ppb

>95.83%

0.1 ppb

IS16240:2023

32

Parathion methyl

0.261ppb

ND<0.01ppb

>96.17%

0.1 ppb

IS16240:2023

33

Phorate

0.242ppb

ND<0.01ppb

>95.87%

0.1 ppb

IS16240:2023

34

Atrazine

0.263ppb

ND<0.01ppb

>96.20%

0.1 ppb

IS16240:2023

35

2,4-D

0.261ppb

ND<0.01ppb

>96.17%

0.1 ppb

IS16240:2023

36

Ethion

0.258ppb

ND<0.01ppb

>96.12%

0.1 ppb

IS16240:2023

37

Isoproturon

0.246ppb

ND<0.01ppb

>95.93%

0.1 ppb

IS16240:2023

38

Malathion

0.245ppb

ND<0.01ppb

>95.92%

0.1 ppb

IS16240:2023

39

Methyl parathion

0.261ppb

ND<0.01ppb

>96.17%

0.1 ppb

IS16240:2023

40

Monocrotophos

0.331ppb

ND<0.01ppb

>95.95%

0.1 ppb

IS16240:2023

VOLATILE ORGANIC CONTAMINANTS

41

alachlor

0.050

ND<0.001

> 98

0.002

NSF/ANSI 53

42

atrazine

0.100

ND<0.003 3

> 97

0.003

NSF/ANSI 53

43

benzene

0.081

ND<0.001 3

> 99

0.005

NSF/ANSI 53

44

carbofuran

0.190

ND<0.001 3

> 99

0.04

NSF/ANSI 53

45

carbon tetrachloride

0.078

ND<0.0018 4

98

0.005

NSF/ANSI 53

46

chlorobenzene

0.077

ND<0.001 3

> 99

0.1

NSF/ANSI 53

47

chloropicrin

0.015

ND<0.0002 3

99

NSF/ANSI 53

48

2,4-D

0.110

ND<0.0017 4

98

0.07

NSF/ANSI 53

49

dibromochloropropan e (DBCP)

0.052

ND<0.00002 3

> 99

0.0002

NSF/ANSI 53

50

o-dichlorobenzene

0.080

ND<0.001 3

> 99

0.6

NSF/ANSI 53

51

p-dichlorobenzene

0.040

ND<0.001 3

> 98

0.075

NSF/ANSI 53

52

1,2-dichloroethane

0.088

ND<0.0048 5

95 5

0.005

NSF/ANSI 53

53

1,1-dichloroethylene

0.083

ND<0.001 3

> 99

0.007

NSF/ANSI 53

54

cis-1,2-dichloroethylene

0.170

ND<0.0005

> 99

0.07

NSF/ANSI 53

55

trans-1,2-dichloroethylene

0.086

ND<0.001

> 99

0.1

NSF/ANSI 53

56

1,2-dichloropropane

0.080

ND<0.001

> 99

0.005

NSF/ANSI 53

57

cis-1,3-dichloropropylene

0.079

ND<0.001

> 99

NSF/ANSI 53

58

dinoseb

0.170

ND<0.0002

99

0.007

NSF/ANSI 53

59

endrin

0.053

ND<0.00059

99

0.002

NSF/ANSI 53

60

ethylbenzene

0.088

ND<0.001

> 99

0.1

NSF/ANSI 53

61

ethylene dibromide

(EDB)

0.044

ND<0.00002

> 99

NSF/ANSI 53

62

haloacetonitriles (HAN)

0.005

NSF/ANSI 53

63

bromochloroacetonitrile

e

0.022

ND<0.0005

98

1

NSF/ANSI 53

64

dibromoacetonitrile

0.024

ND<0.0006

98

0.05

NSF/ANSI 53

65

dichloroacetonitrile

0.0096

ND<0.0002

98

NSF/ANSI 53

66

trichloroacetonitrile

0.015

ND<0.0003

98

0.07

NSF/ANSI 53

67

haloketones (HK)

1,1-dichloro-2-propanone

1,1,1-trichloro-2-propanone

0.0072

0.0082

ND<0.00 01

ND<0.0003

99

96

0.2

NSF/ANSI 53

68

heptachlor (H-34,

Heptox)

0.025

ND<0.00001

> 99

0.005

NSF/ANSI 53

69

heptachlor epoxide

0.01076

ND<0.0002

98

0.005

NSF/ANSI 53

70

hexachlorobutadiene

0.044

ND<0.001

> 98

0.080

NSF/ANSI 53

71

hexachlorocyclopentadiene

0.060

ND<0.000002

> 99

10

NSF/ANSI 53

72

lindane

0.055

ND<0.00001

> 99

0.1

NSF/ANSI 53

73

methoxychlor

0.050

ND<0.0001

> 99

NSF/ANSI 53

74

pentachlorophenol

0.096

ND<0.001

> 99

0.005

NSF/ANSI 53

75

simazine

0.120

ND<0.004

> 97

1

NSF/ANSI 53

76

styrene

0.150

ND<0.0005

> 99

0.1

NSF/ANSI 53

77

1,1,2,2-tetrachloroethane

0.081

ND<0.001

> 99

NSF/ANSI 53

78

tetrachloroethylene

0.081

ND<0.001

> 99

0.005

NSF/ANSI 53

79

toluene

0.078

ND<0.001

> 99

1

NSF/ANSI 53

80

2,4,5-TP (silvex)

0.270

ND<0.0016

99

0.05

NSF/ANSI 53

81

tribromoacetic acid

0.042

ND<0.001

> 98

NSF/ANSI 53

82

1,2,4-trichlorobenzene

0.160

ND<0.0005

> 99

0.07

NSF/ANSI 53

83

1,1,1-trichloroethane

0.084

ND<0.0046

95

0.2

NSF/ANSI 53

84

1,1,2-trichloroethane

0.150

ND<0.0005

> 99

0.005

NSF/ANSI 53

85

trichloroethylene

0.180

ND<0.0010

> 99

0.005

NSF/ANSI 53

86

Trihalomethanes (includes) Chloroform ( surrogate) bromoform bromodichloromethan

e chlorodibromomethan

0.300

ND<0.015

95

0.080

NSF/ANSI 53

87

xylenes (total)

0.070

ND<0.001

> 99

10

NSF/ANSI 53

ND= Not detected / below detection limit. Sampling was done after 50L filtration. The flow rate of the filter was ranging from 160 – 220 ml/min.

Quality Test Report

Test Conditions

Test water : TDS : 250-300 ppm, pH: 7.2 to 7.6, Turbidity: < 1 NTU
Various chemical salts were used spiked to adjust the required input water contaminant concentration. Water head in the Top container was maintained. Sampling after 50L filtration.

Observations and Inference

Tested Gravity filter with HMR cartridges performed well by reducing various chemical contaminants constituting regulated metals, pesticides, VOCs. The reduction capability was meeting National and International specifications( 74 - 99%).

Methodology

HMR cartridges tested were pre wetted by soaking in RO water for 1 hour and a single cartridge was fitted in the top container of the gravity filter. Various contaminants like metals, pesticides, Chloroform ( surrogate VOCs), inorganics and bacterial impurities were spiked in test water and fed to the top container of the gravity filter. A filtration volume of 50L was used for sampling and during this volume of filtration, the water head was maintained. The filtration flow was observed to be 120 - 220 ml/min. The filtered water and the input water were subjected to analysis by IS/APHA/USEPA methods as applicable.