water pollution and treatment lec: sep 6 ,...
TRANSCRIPT
![Page 1: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/1.jpg)
1
CVL100:Environmental Science(2-0-0)Dr. Arun Kumar
(Wednesday and Friday) (Minor 1 –Minor 2)
Water Pollution and Treatment
Lec: Sep 6th, 2019
See Website: http://web.iitd.ac.in/~arunku/ (teaching activitiy section � CVL100)
Check IITD course email daily for information
![Page 2: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/2.jpg)
Re-cap
• Introduction of water quality constituents; parameters
• Development of schematic of water treatment plants
Oxygen Demanding Wastes
![Page 3: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/3.jpg)
Example 1: Treatment schematic
(GW� Potable drinking water)
• Raw Ground water � aeration chamber �
Softening unit � Filtration with chlorination
�Disinfection � Storage
• Guidelines for drinking water?
September 7, 2019 3
![Page 4: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/4.jpg)
Parameters;
individual
compounds
also
September 7, 2019 4
Courtesy:
Prof. B.J.Alappat,
IIT Delhi
![Page 5: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/5.jpg)
Example 2 (read the paper from course web area)
September 7, 2019 5
![Page 6: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/6.jpg)
September 7, 2019 6
![Page 7: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/7.jpg)
September 7, 2019 7
To remove large materials and solids
Stackelberg et al. 2004
![Page 8: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/8.jpg)
September 7, 2019 8
To remove solids; coagulants addition
Stackelberg et al. 2004
![Page 9: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/9.jpg)
September 7, 2019 9
To remove pathogens; oxidize reduced substances also
Stackelberg et al. 2004
![Page 10: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/10.jpg)
September 7, 2019 10
Stackelberg et al. 2004
![Page 11: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/11.jpg)
September 7, 2019 11
Calculate: (a)% removal; (b)partitioning of initialcompounds in finished water and in solids
For AHTN%removal =100(1-{Cfinished/Craw})
Partitioning in Finished conc. = {Cfinished/Craw}
Partitioning in solids={Csettled/Craw}
![Page 12: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/12.jpg)
Exercise 1: Yamuna River Water �Drinking water
• Think for 5 minutes for two steps.
• Step 1: water quality characteristics determination
• Step 2: selection of units, their order
• Can you compile Yamuna watercharacteristics as per parametersmentioned earlier?
September 7, 2019 12
![Page 13: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/13.jpg)
Example 3 (read the paper from course web area)
September 7, 2019 13
![Page 14: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/14.jpg)
September 7, 2019 14
Calculate: (a)% removal; (b)comment onremoval between different stages
Ternes et al.2002
![Page 15: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/15.jpg)
Exercise 1: Yamuna River Water �Drinking water
September 7, 2019 15
![Page 16: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/16.jpg)
September 7, 2019 16
Say I am considering volunteering for a one-way
trip to Mars [I can send weekly updates, though!],
which requires my commitment on
optimizing/reducing my daily water consumption.
One option is to use treated wastewater for my non-
drinking activities. Which two parameters do you
suggest me to monitor before I accept the condition
and why?
Exercise 2
![Page 17: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/17.jpg)
September 7, 2019 17
Suppose IIT Delhi water has suspended solids,
organic matter, microorganisms, hardness, and
dissolved CO2, which are problematic constituents.
Other dissolved constituents are below problem
levels. Draw a schematic diagram of a treatment
plant that will render this water potable. Identify
each unit and show points of chemical addition with
their names.
Exercise 3
![Page 18: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/18.jpg)
Example 3 (read the paper from course web area)
September 7, 2019 18
![Page 19: Water Pollution and Treatment Lec: Sep 6 , 2019web.iitd.ac.in/~arunku/files/CVL100_Y19/LecSep519.pdf · 2019-09-07 · Suppose IIT Delhi water has suspended solids, organic matter,](https://reader033.vdocuments.site/reader033/viewer/2022042213/5eb6f320b7751f767d6e2159/html5/thumbnails/19.jpg)
September 7, 2019 19
Calculate: (a)% removal; (b)comment onremoval between different stages
Ternes et al.2002