Question

decribe and state significance of eutopication in relation to wastewater treatment

Answer 1

solution is posted below hope it helps.

eutrophication and wastewater:

eutrophication and wastewater or say waste water treatement are linked as it is wastewater or improper treatment of wast water which leads to the proceess of accumulation of nutrients leading to eutrophication of water bodies.

it is to be preknown about the qualtiy and concentration of wastewater so that when one designs a wastewater treatementplant should be able to take care of this excessive nutriensts too.

eutrophication is the increment of nutrient in water in form of natural salts which in turn change the ecosystem by increasing the production of algae and aquatic plants which decrease the dissolved oxygen content of water which in turn depletes the species of fish and in genral deteriorate the quality of water. nutrients nitrogen and phosphorus are mazor contributer of this problem.

algal bloom is term linked to eutrophication which is known as covering of whole water body with algae and covering it.

waste water when discharged directly into water bodies throughout the world (mainly we can say it about developing country) is discharged without treatement directly to various water bodies , such as river ponds lake and seas. as this waste water consist of various high quantity of nutrients which in turn stimulates the excessive or disproportionate growth of lage in water bodies. in developed countries this problem rises when factories illegaly discharge there waste water directly to envioronment without treatement. this consecutive accumulation of nutrient from watewater to water bodies does the eutrophication which in turn can kill the water body or make it of no use.

so to avoid the algal bloom and save water bodies we have to keep in check the eutophication i.e nutrient concentraion of water in waste water and eutrophication become significant while dealing with waste water.

the main control mechanism deployes at present to deal with this problem is basedon technique of prevention.

prevention refers to removal of nutrients from water or waste water. the two mazor components namely nitrogen and phsophorus are targeted which are limiting trigger for growth of algae .

what can be done to wastewater to reduce eutrophication:

1: additional addition of tertiary treatment palnt which will keep a check on nutrient concentration and remove them.

2; phyto purification plants which are effective in removal of nitrogen and phsophorus should be planted.

3:oxygetaion of waste water as well as eutrophicated water body by churning the water or supplying it with pressurised air can help.

4: addition of iron, aluminium salts and calcium carbonate to water which then peripitates and reduce the excessive availability of phosphorus in sediments.