Explain chlorine residuals, Civil Engineering

Assignment Help:

Explain Chlorine Residuals

Free Chlorine Residuals: Cl2, HOCl, OCl-  

Combined Chlorine Residuals: Chloramines (mono, di and tri chloramines)

The disinfecting ability of chloramines is much lower than that of free chlorine.

Satisfactory results can be obtained if a free chlorine residual of 0.2 to 0.5 mg/L can be maintained in the distribution system. Also if approved by health authorities  combined chlorine residuals in the range of 1 to 2 mg/L should maintained at distant points in the distribution system.    

 Trihalomethanes (the following) which are formed as a result of chlorination are harmful and this must be avoided.

CHCl3 trichloromethane (chloroform)

CHBrCl2  bromodichloromethane

CHBr2Cl dibromochloromethane

CHBr3   tribromomethane (bromoform)


Related Discussions:- Explain chlorine residuals

Self compacting concrete, what will be the w/c ration and cement/fly ash ra...

what will be the w/c ration and cement/fly ash ration for the particular mix design

What is ceramic mosaic and chequered cement tiles, Q. What is Ceramic mosai...

Q. What is Ceramic mosaic and Chequered Cement tiles? Chequered Mosaic tiles - Repairs to steps of F O Bs should be done only with Chequered Mosaic tiles. Ceramic m

Pressure distribution under rigid and flexible footings, Pressure distribut...

Pressure distribution under rigid and flexible footings For rigid and thick footings, pressure distribution under the footings is generally presumed to be linear. If symmetric

Deflectin of beam, simply supported beam with point load at the centre

simply supported beam with point load at the centre

Explain about viscous flow loss, Q. Explain about Viscous flow loss? Ab...

Q. Explain about Viscous flow loss? Absorptive material comprises interconnected voids and pores into which sound energy will propagate. When sound waves pass throughthe materi

Determine the elastic settlement of a rectangular foundation, Determine the...

Determine the elastic settlement of a rectangular foundation, 6 m × 12 m, on a uniform sand with E = 20,000 kN/m 2 and Poisson's ratio,   = 0.2. The contact pressure is 200 kN/m 2

Cost effective buildings, How to construct Semi Ellitical Buildings of 15fe...

How to construct Semi Ellitical Buildings of 15feet dia., in Brick Masonry.

Block contouring, how to calculate contour surveyed area

how to calculate contour surveyed area

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd