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Hard Scale(Scale)

- Forms in steam boiler

-Has the appearance of a white and brown concentration

-smooth texture

Soft Scale(Sludge)

-Forms in the hot water heaters

-Appears as a thick ,brown or black sludge

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What is chemical sludge and difference between chemical and biological siudge?

Chemically sludge is obtained when precipitating soluble or insoluble chemicals present in the water or any kind of effluent coming out of chemical industries. Generally iron was used as an precipitate pollutants present in waste water. the final product after precipitation is called chemical sludge which is filled in a land into heap or used in road construction. Biological sludge is formed when microorganisms are used to degrade toxic chemicals present in waste water. The excess biomass formed is termed as biological sludge which contains adsorbed toxic chemicals in their cells, toxic metabolites formed during degradation of wastes, dead biomass etc.


What is the difference between absolute temperature scale and kelvin scale urgent I am convinced that there is a difference?

The Kelvin scale is an absolute temperature scale where 0K represents absolute zero. The absolute temperature scale refers to any temperature scale that starts at absolute zero, such as the Kelvin scale. So, the Kelvin scale is a specific type of absolute temperature scale.


How do you solve the electronegative difference?

To solve for electronegativity difference between two atoms, subtract the electronegativity values of the two atoms. Electronegativity values can be found on the Pauling scale. The greater the difference in electronegativity, the more polar the bond is.


How do you weigh a wet diaper?

To weigh a wet diaper, first weigh the baby on a scale. Then, remove the wet diaper and weigh the baby again. The difference in weight between the two measurements will give you the weight of the wet diaper.


What is a sentence for sludge?

The workers had to wade through thick sludge to clear the clogged drain.

Related Questions

What is sludge and scale?

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the difference between ine number and the next on the scale ?


What is the difference between Australia's hurricane scale and the United states hurricane scale?

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Difference between returns to scale and constant return to scale?

differentiate between returns to scale and constant return to scale


What is the difference between moutians and hills?

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What is the difference between a microscopic picture and a macroscopic picture?

This is a big difference of scale; at microscopic scale more details are revealed.


What is the difference between a microscope picture and a macroscopic picture?

This is a big difference of scale; at microscopic scale more details are revealed.


What is the difference between wg scale and gs scale?

GS=salary. WG=hourly.


What is the difference between the Richter scale with the moment of magnitude scale?

well nothing. they are the same


What is the difference between a minor scale and a harmonic minor scale?

The main difference between a minor scale and a harmonic minor scale is that the harmonic minor scale has a raised seventh note compared to the natural minor scale. This alteration creates a unique sound and adds tension to the music.