| Author | Joshi, Deepak Lal |
| Call Number | AIT Thesis no. EV-89-12 |
| Subject(s) | Water--Purification--Iron removal
Water--Purification--Filtration
|
| Note | A Thesis submitted in partial fulfillment of the
requirement for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Groundwater is extensively used for drinking purpose in
rural areas in many developing countries. Although it is one of
the safest source of drinking water, it ca n be un fit for
drinking purpose due to high mineral content like iron and
manganese and contamination by coliform organisms. A simple
filtration process without use of chemicals, consisting of Matrix
filter coupled with a contact filter was studied to investigate
the removal of iron and coliform.
Th is study was conducted to determine the effect of various
combination of coarse and fine media on the removal of iron and
coliform organisms. The study revealed that t h e efficiency of a
Matrix filter depends upon the size combination of coarse and
fin e media. In t h is study, t h e Matrix filter consisting of 21.9
mm road s tone infilled with O. 38 mm sand was better t h an other
combinations investigated for iron and coliform organisms
removal .
Comparative study with ordinary sand filter showed that
Matrix filter has a remarkable lower pressure drop and higher
storage capacity for solids than the ordinary sand filter.
A pilot-scale filtration un it made from oil drums was
investigated to see its suitability for rural water supply to
remove iron and coliform organisms from ground water. At a
filtration velocity of 0 . 7 m/h, this unit could produce filtered
water with less than 0.5 mg/l of iron for 30 hours of continuous
operation with an influent concentration of 4 . 0 to 5.0 mg/1. |
| Year | 1989 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Vigneswaran, Saravanamuthu
|
| Examination Committee(s) | Samorn Muttamara ;K. Udomsinrot
|
| Scholarship Donor(s) | Royal Netherlands Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |
