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

door shutters, what is the difference between paneled and glazed shutte

what is the difference between paneled and glazed shutter

Mixed ground with soils and boulders, Ground settlement occurs when pipe-ja...

Ground settlement occurs when pipe-jacking machine enters mixed ground with soils and boulders? The rate of cutting through soils is faster than cutting through boulders for pi

Storm water, what are the roles of civil engineers in storm water managemen...

what are the roles of civil engineers in storm water management

Darwing, construction the ellips in all method

construction the ellips in all method

Types of cement, Types of Cement In addition to ordinary Portland ceme...

Types of Cement In addition to ordinary Portland cement there are various varieties of cement. Significant varieties are briefly explained below: (i) White Cement: The ce

Explain the system curves - pumping system, Explain the System Curves - Pum...

Explain the System Curves - Pumping System Non-linear plot beginning on the y-axis at the Total Static Head (TSH) and plotted primarily based on the h f .

List the factor that affect the permeability of a given soil, List the fact...

List the factors that affect the permeability of a given soil. Determine the precautions that should be taken so that satisfactory permeability data may be obtained. Explaining

Impact of possible energy, a) Take into consideration the boiler efficiency...

a) Take into consideration the boiler efficiency, and verify the cost of heating the building, during the heating season, using present oil and gas prices.  b) Investigate the i

Steel, A No 10 steel rebar is tested in tension by monitoring the load read...

A No 10 steel rebar is tested in tension by monitoring the load reading of the testing machine it was found that the specimen yielded at aload of 41600lb and fractured at 48300 lb

Tools of measerments, where i can get the tools of different types of mease...

where i can get the tools of different types of measerments of differents elements of construction?

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