Microfloc process, water treatment_

Microstrainers, water treatment ___

Mixing devices. (See Coagulation and Flocculation.)

New techniques and equipment.

75-76

Water quality studies (see also Comprehensive water quality manage-

ment, and Integrated stream survey system)_

75-92

Sunlight intensity, measurement of

77,84

U.S. Public Health Service drinking water standards_-_.

16, 28

44-47
47

47

7, 29
23

12, 29
57

7, 23
89-90

W

39-40
43-44

2-3

39

28

89

39-55

59-72

53

1, 62

Biological. (See Biological treatment.)

Cost of

Efficiency of_

Grit removal.

Package plants.

Primary treatment_

3-4, 39-40, 59-60
40-41, 50
52
40-41
37, 57-58

40
41-44

40-41, 42
41, 42

42-43, 44-49

Quality (see also Comprehensive water quality management).

Water quality management (see also Comprehensive water quality manage-

2, 11, 27

2, 16-17

16, 28

2, 4, 16, 27

5-9

1, 9, 62

10-14

Disinfection..

Efficiency of

Flocculation devices__

22, 30
27-29

23