Simultaneous Disinfection and Trace Heavy Metal REMOVAL from Hospital Wastewater by Advanced Oxidation Techniques

1. PROJECT REVIEW
SIMULTANEOUS DISINFECTION AND TRACE HEAVY METAL REMOVAL
FROM HOSPITAL WASTEWATER BY ADVANCED OXIDATION
TECHNIQUES
BY:
SHASHIKUMAR A N
(USN: 4JC15EVH12)
4th SEM, M.Tech
Health Science And Water Engineering
Under the guidance of:
Dr. K S LOKESH
Professor
Department of Environmental Engineering
July, 2017
JSS MAHAVIDYAPEETA
SRI JAYACHAMARAJENDRA COLLEGE OF ENGINEERING
MYSURU – 570 006
An Autonomous Institute Affiliated to
Visvesvaraya Technological University, Belagavi

2. CONTENTS
• Introduction
• Objectives
• Literature Review
• Materials And Methodology
• Result and Discussion
• Conclusion And Recommendation
• Activity Chart
• References

3. Introduction
• Hospital wastewater is wastewater generated from all the activities of the
hospital as medical and non-medical activities from the operating,
emergency, and first aid, laboratory, diagnosis, radiology, kitchen, and
laundry activities .
• Hospital wastewater may contain various potential hazardous materials
including, microbiological pathogens, radioactive isotopes, disinfectants,
drugs, chemical compounds and pharmaceuticals.
• Indeed the hospital wastewater may have an adverse impact on
environment and human health. There is a need for efficient pre –
treatment options which can effectively reduce or modify the recalcitrance
profile of the wastewater.

4. Scope of Study
• Photo-Fenton technology is a very promising technology for the treatment of
wastewater containing high organic matter.
• It can be used as a pre-treatment for extremely polluted pharmaceutical
wastewater which mainly helps in the reduction of toxicity.
• It can be used for the treatment of leachate which consists of high COD and
BOD.
• It can be used for the treatment of wastewater containing aromatic amines, wide
variety of dyes, pesticides, surfactants, toxic waste.
• It can be used for the treatment of hospital wastewater containing micro-
organisms as well as heavy metals.

5. Objectives
The main objective of this present study is to treat hospital wastewater using photo-fenton
oxidation techniques.
Specific objectives are
• Characterization of Raw wastewater from two major hospitals in mysore city for
wastewater quality parameters.
• To determine ideal conditions of fenton oxidation of hospital wastewater such as pH,
dosage and contact time.
• To conduct simultaneous disinfection cum heavy metal oxidation at ideal condition using
UV-fenton oxidation of hospital wastewater.

6. Materials And Methodology
• Experimental Design
• Wastewater Collection and Its Characteristics.
• Fenton Experiment
• Photo Fenton Experiment

7. Experimental Design Used in the Fenton Oxidation
PROCESS
1.Investigate the pH range selected which is pH 2.5 to 6.5.
2.Investigate the dosage of FeSo4 from 200 to 600 mg/l.
3.Investigate the dosage of H2O2 from 100 to 1000 mg/l.
4.Acid and Alkali solution used to set up the desired pH of 2.5, 3.5, 4.5, 5.5, and 6.5
5.Reaction time 0, 30, 60, 90, 120 minutes.
Number ( Ratio)
mg/L
Dosage mg/L Ratio
mg/l
Dosage mg/L
Fe2+ H2O2 Fe2+ H2O2
1. (0.5) 200 100 6. (2.5) 400 1000
2. (2.5) 200 500 7. (0.16) 600 100
3. (5) 200 1000 8. (0.83) 600 500
4. (0.25) 400 100 9. (1.66) 600 1000
5.(1.25) 400 500

8. Fenton and Photo-Fenton Experiment
Fenton experiment set up Photo Fenton Experiment Set Up

9. Microbial Test: Total Coliform, Fecal Coliform, Fecal
Streptococci
microbiology Test UV Chamber

10. Result and Discussion
Parameter JSS Hospital Wastewater Characteristics KR Hospital Wastewater Characteristics
pH 6.71-6.9 6.69-7.08
Temperature 25-25.2 23.8-24.5
Turbidity 57-60 43-73
Conductivity 3.02-4.34 3.47-3.75
COD (mg/L) 3510-4600 2720-3200
BOD5 (mg/L) 1143-1800 1059-1560
BOD5/COD 0.25-0.5 0.38-0.5
TSS (mg/L) 1600-2388 1284-1736
Chloride (mg/L) 120-135 116-130
Nitrate (mg/L) 1.39-1.73 1.374-1.733
Phosphate (mg/L) 9.599-18.78 8.320-12.848
Al 1.56-1.8 NIL
Cr 0.01 0.01
Cu 0.01 0.01
Fe 4.2-4.4 2.8-3.3
Ni NIL NIL
Zn 3.9-4.5 1.58-2.1
Total Coliform ≥110000 ≥110000
Fecal Coliform ≥1100 ≥1100
Fecal Streptococci ≥1100 ≥1100
Initial Characterization of Raw Hospital Wastewater

11. Disinfection Study: Total Coliform, Fecal Coliform,
Fecal Streptococci
Disinfection by Using 11w UV Lamp with Irradiation Time -JSS and KR
Hospital (MPN/100ml)

12. Characterization of Treated Hospital Wastewater

13. Conclusion And Recommendation
• Treat ability studies carried out for Fenton process showed reduction in COD, TSS and
Turbidity for JSS Hospital wastewater is 128 mg/L, 108 mg/l and 9 NTU and KR hospital
wastewater is 311 mg/l, 209 mg/l and 7 NTU resulting in removal efficiency of JSS
Hospital wastewater is 96 %, 94% and 84% and KR hospital wastewater 90%, 86%, 87%
for optimum Fenton dose of JSS and KR Hospital wastewater is 0.4g Fe2+ + 1.65ml H2O2
at pH of 3.5.
• 11W UV lamp used to disinfect the wastewater showed reduction in microbial parameters
such as faecal coliform, faecal streptococci and total coliform, the removal efficiency of
TC, FC, FS for JSS and KR hospital wastewater are 99.72 %, 99.72 %, 99.72%. And
99.72%, 99.17%, 98.63% respectively.

14. Based on the work carried out in this study, the following recommendation for the future
work is made:
Further studies can be carried out to assess the effect of alternative dosages and treatment
by different irradiation intensity configuration.

15. ACTIVITY CHART
YEAR 2016 2017
MONTH October November December January February March April May June July
Topic
Finalize
Literature
Review
Materials
&
Methodol
ogy
Result
and
Analysis
Report
preparati
on
Paper
Publicatio
n

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21. Thank you