Water Treatment Technologies and Their Costs - Global Drinking Water Management and Conservation - page 49

Table 3.10 Estimated regression coef cients
Coef cients Class 1 Class 2 Class 4

b 1 19.343 25.537 375.873

(0.015) (0.494) (0.000)

b 2 0.6428 0.5998 1.000

− − −

(0.000) (0.162) (0.000)

R 2

0.773 0.413 0.999

R 2

0.765 0.266 0.999

S.E a . b 1 7.456 33.939 0.000

S.E. b 2 0.096 0.351 0.000

No of Observations 29 6 4

a Standard Error

Appendix D

Sources of Data

o ® ACP package plants. John Meunier Inc. Water and Wastewater treatment: Acti

http://www.johnmeunier.com . Accessed 01 October 2011.
Koch Membrane. Municipal Water Ultra ltration (UF) Systems for Small Com-

munities. http://www.kochmembrane.com/mww_prepacked.html . Accessed 16
May 2011.
Kruger USA. Acti o ® for Drinking Water Treatment. http://www.krugerusa.com/

en/ les/16362.htm . Accessed 16 May 2011.

Lenntech. Micro filtration System (MFS): Membrane Technology. http://www.

lenntech.com/micro ltration.htm . Accessed 16 May 2011.

Mainstream Water Solutions Inc Municipal Systems. http://www.mainstreamwater.
com/topmenu_municipal.html#1 . Accessed 16 May 2011.
Siemens. MEMCOR ® CP - Ultra

ltration System. http://www.water.siemens.com/

en/products/membrane_ ltration_membrane_systems/

Pages/memcor_product_cp_membrane_system.aspx . Accessed 13 May 2011.
TrojanUV Technologies. TrojanUVSwiftSC. http://www.trojanuv.com/solutions/
municipal/drinkingwater/products/trojanuvswiftsc . Accessed 17 May 2011.

ltration_separation/ultra

References

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AWWA Water Quality Division Disinfection (1992) Survey of water utility disinfection practices.
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