filtration, Biology

Assignment Help:

It is the process of separating colloidal and suspended impurities from water by passing it through a porous bed made of fine sand and other proper sized granular materials. Filtration is carried out in a sand filter. It consists of a top thick layer of fine sand, placed over coarse sand layer followed by gravel. Water comes from the top.

Small micro-organisms present in sand voids decompose organic matter and remove some of the biological impurities. 

 

 


Related Discussions:- filtration

What are compound eyes, Q. What are compound eyes? Arthropods have comp...

Q. What are compound eyes? Arthropods have compound eyes made of several visual units called as ommatidia. Each ommatidium transmits visual information through the optic nerve

Explain intensity of heart sound, Explain Intensity of heart sound? Int...

Explain Intensity of heart sound? Intensity of S 1, particularly M 1 depends on the position of the bellies of mitral leafets when the LV begins to contract since S 1 is loudes

Intramuscular route of injection, Intramuscular Route of Injection P...

Intramuscular Route of Injection Purpose When rapid action is required.  When drug would prove irritating to the subcutaneous tissue.  Site selected must be whe

Receptors - ear, EA R It is phono receptor as respond to sound...

EA R It is phono receptor as respond to sound waves. It is teloreceptor as receive stimuli from far distance. It is stato-acousting organ as concerned with b

Nitrate uptake, Nitrate Uptake Nitrate must enter the cells before und...

Nitrate Uptake Nitrate must enter the cells before undergoing assimilatory reduction by the joint action of nitrate reductase and nitrite reductase. Cells accumulate NO - 3

Human impact on the environmetn, what are the two main pollutants that cont...

what are the two main pollutants that contribute to acidic rain?

List the four phases of mitosis, List the four phases of mitosis, and brief...

List the four phases of mitosis, and briefly explain what occurs during each phase. Prophase: the chromatin coils and produces chromosomes, the nucleolus and nuclear envelope d

Crucial periods of a woman''s life - pregnancy and lactation, Define crucia...

Define crucial periods of a woman's life - pregnancy and lactation? In this unit, we studied about the most crucial periods of a woman's life, pregnancy and lactation, especial

Protoplasm, physical properties of protoplasm

physical properties of protoplasm

What role do catalysts play in chemical reactions, What role do catalysts p...

What role do catalysts play in chemical reactions? By decreasing the activation energy that is required for a reaction, a catalyst permits the reaction to proceed spontaneously

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd