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

Abc, uses concrete slump test

uses concrete slump test

Mapping, how to understand maps easily?

how to understand maps easily?

Determine the grade rod reading at station, A section view of a proposed ro...

A section view of a proposed roadway is shown in Figure 1 with an existing grade point elevation of 100-ft. The proposed roadbed finish grade elevation at station 50+00 is 95.00-ft

Explain the steady and uniform flow, Explain the Steady and Uniform Flow ...

Explain the Steady and Uniform Flow Steady flow: Flow quantity does not change over time. Uniform flow: The slopes of the energy grade line S = dE/dL, the hydraulic grade li

Surveying, sample problems with solutions for probable value

sample problems with solutions for probable value

Explain the process of directed track maintenance, Q. Explain the process o...

Q. Explain the process of Directed Track Maintenance? DTM is a method to maintain the track is directed every day and not as a prescribed routine. DTM essentially consists of n

Two way slab, how can i design reinforcement for a two way slab

how can i design reinforcement for a two way slab

Determine the total active thrust by rebhann''s method, A retaining wall 3....

A retaining wall 3.6 m high supports a dry cohesion less backfill with a plane ground surface sloping upwards at a surcharge angle of 20° from the top of the wall. The back of the

SURVEYING, TYPES OF OBSTACLES IN CHAIN SURVEYING

TYPES OF OBSTACLES IN CHAIN SURVEYING

Uses of lime, Uses of Lime Uses of lime in civil works are following : ...

Uses of Lime Uses of lime in civil works are following : For making mortar  for masonry works and plastering For white washing. For soil stabilization. To produc

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