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

Define the psychological problems - effect of obesity, Define the Psycholog...

Define the Psychological problems - Effect of Obesity? Obese people may be exposed to ridicule and discrimination in areas like employment, promotions and social interactions.

Polychaetes - feeding and digestion in annelids, Polychaetes - Feeding and ...

Polychaetes - Feeding and Digestion in Annelids Polychaetes involve both free moving (errant) and sedentary species. The free moving species are usually macrophagous and the s

Which term describes study of animal behaviour, Which of the below terms de...

Which of the below terms describes study of animal behavior based on comparisons, observation of patterns, and consideration of environmental adaptations? Is it: a) Ethology (p

Define about selenoproteins p and w, Define about Selenoproteins P and W? ...

Define about Selenoproteins P and W? The third group comprises of selenoprotein P, an extracellular constituent with multiple selenocysteine molecules. This has an antioxidant

Embryological evidences of evolution, EMBRYOLOGICAL EVIDENCES - A co...

EMBRYOLOGICAL EVIDENCES - A comparative study of embryology of different groups of animals reveals certain features that provide evidences for organic evolution. There ar

What do you understand by cyanogenic glycosides, Q. What do you understand ...

Q. What do you understand by Cyanogenic glycosides? Cyanogenic glycosides are present in a number of food plants and seeds. Cassava is a staple dietary item in tropical Afri

Ribosomes, Ribosomes - It is also known as Protein factory, Engine ...

Ribosomes - It is also known as Protein factory, Engine of the cell. Ribosomes are smallest cell organelles (150 x 250 Å). Unit membrane less cell organelle. Ribo

Soil pollution, Soil is upper crust of earth which support land plants and ...

Soil is upper crust of earth which support land plants and animals. It is defined as addition of substances to the soil, which adversely affect physical, chemical? And biologica

Define the symptoms in bone marrow of pernicious anaemia, Define the sympto...

Define the symptoms in Bone marrow of pernicious anaemia? The nucleated red cells of the marrow are greatly increased.  The successive nucleated cell stages in erythropoiesis a

Trichomonas vaginalis - protozoan, Trichomonas vaginalis - Protozoan T...

Trichomonas vaginalis - Protozoan This cosmopolitan protozoan lives exclusively in the female vagina and male urethra or prostate. It causes a mild disease called trichomonas

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