Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by__________________?
Correct answer: B. Radial settling tank (thickener) using coagulant (lime & ferrous sulphate)
- A. Biological oxygen pond
- B. Radial settling tank (thickener) using coagulant (lime & ferrous sulphate)
- C. Lagoons
- D. Filtration
Explanation
Blast-furnace gas-cleaning water contains heavy suspended solids that are removed by coagulation followed by radial settling and thickening. Lime and ferrous sulphate promote particle aggregation and settling.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Main pollutants released from iron & steel industry is__________________?
In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C ?
The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the __________________?
Inhalation of silica dust causes a disease called__________________?
Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called__________________?
Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal ?