What are the various components of domestic s | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Domestic sewage consists of $0.1\%$ impurities and $99.9\%$ water. It includes human excreta,food waste,detergents,and other household waste. The

Vedclass · Accepted Answer

Components: Suspended solids,colloidal materials,dissolved materials; Effects: Depletion of dissolved oxygen,$BOD$ increase,eutrophication,and death of aquatic organisms.

Vedclass · Answer

(A) Domestic sewage consists of $0.1\%$ impurities and $99.9\%$ water. It includes human excreta,food waste,detergents,and other household waste. The main components are:$(i)$ Suspended solids: Sand,silt,and clay.$(ii)$ Colloidal materials: Fecal matter,bacteria,paper,and cloth fibers.$(iii)$ Dissolved materials: Inorganic nutrients like nitrates,ammonia,sodium,and calcium.Effects of discharging sewage into a river:$(i)$ Water contamination: Sewage introduces pathogenic microorganisms,leading to waterborne diseases.$(ii)$ Increase in $BOD$: Microorganisms decompose organic matter,consuming large amounts of dissolved oxygen. This increases the $BOD$ (Biochemical Oxygen Demand),leading to the death of fish and other aquatic organisms.$(iii)$ Eutrophication: Excess nutrients (nitrates and phosphates) cause algal blooms,which deplete oxygen and disrupt the aquatic ecosystem.

Column-$I$	Column-$II$
$(1)$ Mercury	$(a)$ Low blood pressure,blindness
$(2)$ Lead	$(b)$ Hyperkeratosis,liver cirrhosis
$(3)$ Arsenic	$(c)$ Bone deformation,testicular atrophy
$(4)$ Cadmium	$(d)$ Abdominal pain,haemolysis
	$(e)$ Anaemia,convulsions

What are the various components of domestic sewage? Discuss the effects of discharging sewage into a river.

Similar Questions

Which of the following is not used as a disinfectant in drinking water?

The full form of $DDT$ is ..........

The highest $DDT$ concentration in an aquatic food chain shall occur in:

Biochemical Oxygen Demand $(BOD)$ is a measure of:

Match the columns:

Column-$I$ Column-$II$

$(1)$ Mercury $(a)$ Low blood pressure,blindness

$(2)$ Lead $(b)$ Hyperkeratosis,liver cirrhosis

$(3)$ Arsenic $(c)$ Bone deformation,testicular atrophy

$(4)$ Cadmium $(d)$ Abdominal pain,haemolysis

$(e)$ Anaemia,convulsions

Vedclass Test Series

Exam Paper Generator

Online Exam Module