Q. At what temperature the bottles for the BOD test are incubated?

View solution

Q. The BOD test is carried out for how many days?

View solution

Q. What is the TSS effluent concentration for 7 days?

View solution

Q. What is the maximum concentration of total solids present in wastewater?

View solution

Q. Which of the following indicates that the water body has been used for waste disposal?

View solution

Q. Which of the following is used for a small concentration of organic matter?

View solution

Q. ______ is determined by measuring the dissolved oxygen used during the chemical oxidation of organic matter in 3 hours.

View solution

Q. After how many days will nitrogen will be oxidized to nitrite and nitrate?

View solution

Q. How are many forms of nitrogen present in wastewater?

View solution

Q. _________ is determined by measuring the dissolved oxygen used by microorganisms during the biochemical oxidation of organic matter in 5 days at 20˚C.

View solution

Q. _______ are found in agricultural wastes.

View solution

Q. What will be the Total Organic Carbon (TOC) of coloured water?

View solution

Q. Colour is contributed to which of the following?

View solution

Q. How is TDS and conductivity related?

View solution

Q. What is the level of Calcium carbonate for a moderately hard water?

View solution

Q. How is hardness represented?

View solution

Q. Which heavy metal is found in cooling water treatment?

View solution

Q. What is the role of chlorine in water treatment?

View solution

Q. Sodium ions contribute to which characteristic of the water?

View solution

Q. Which characteristic of water does Calcium contribute to?

View solution