Question

Method used for removal of nitrogen?​

Answer 1

Hlw dear..

Here's your answer.

Nitrosomonas and nitrobacter may be used for nitrifying and denitrifying process to remove N. 3. Water hyacinth can be used to remove both N and P. I think the best method is the bacterial degredation ( biological treatment).

Hope it helps a little bit! :-)

Answer 2

ANSWER:

Nitrosomonas and nitrobacter may be used for nitrifying and denitrifying process to remove N. 3. Water hyacinth can be used to remove both N and P. I think the best method is the bacterial

degredation ( biological treatment).

EXPLANATION:

Eutrophication is one of the most problematic water pollution, caused by the high level of nutrients in water, mainly phosphate and nitrate, which is due to the fertilizers runoff from the agricultural areas, as well as the untreated disposal of domestic and industrial wastewater into the environments. Besides, consuming high concentration of phosphate and nitrate from drinking water can lead to various types of health diseases. Considering the bad effects of phosphate and nitrate pollution to human and environment, scientists and researchers had done numerous studies and discovered many useful techniques to remove the pollutants from water sources and wastewater effectively. The chemical methods that can be approached for phosphate and nitrate removal include the chemical precipitation method, MAP precipitation and electrocoagulation method. The physiochemical methods for removal of phosphate and nitrate involve the usage of polymer hydrogels and crystallization process using coal fly ash. Besides, the combination of biological and chemical method such as bio-electrochemical denitrification is useful for the removal of nitrate from wastewater. By comparing the performance of all the five methods, it was discovered that the electrocoagulation was the best method to be applied for the removal of phosphate and nitrate, attributed to its simple, fast operation, less sludge production and cost effective properties. In contrast, the chemical precipitation and MAP precipitation method were less effective compared to the electrocoagulation as more sludge is produced during the process which need further treatment and increase the cost of operation. The physiochemical method was less popular compared to the chemical method, due to more sludge production which is not environmental friendly and more complex operation which needed longer time to be conducted.