Lecture notes of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil Prepared by Prof S S Jahagirdar, Associate Professor, N K ORchid College of Engg and Tech, Solapur

1. UNIT
L-34
Acclamatization and Operati
Maintenance
UNIT- VII
34
and Operati
Maintenance

2. Contents
Acclimatization of bacteria to t
wastes, Process Sensitivity, ope
and maintenance requirements
Contents
Acclimatization of bacteria to t
wastes, Process Sensitivity, ope
and maintenance requirements

3. Acclimatization of bacteri
The type of treatment for industria
decided on BOD/COD ratio.
BOD/COD
ratio
Type of treatment gi
> 0.6 Wastes are biologica
without acclimatizati
0.3 to 0.6 Wastes need acclima
biological treatment
< 0.3 Wastes are treated b
methods
Acclimatization of bacteri
The type of treatment for industria
decided on BOD/COD ratio.
Type of treatment gi
Wastes are biologica
without acclimatizati
Wastes need acclima
biological treatment
Wastes are treated b
methods

4. Acclimatization involves gra
exposure of the waste in inc
concentration to the seed or
microbiological population,
controlled conditions.
Acclimatization involves gra
exposure of the waste in inc
concentration to the seed or
microbiological population,
controlled conditions.

5. Many processes in the
pharmaceutical, plastic, petroch
industries, etc., generate
which contains organic toxic
The utilization of biological treat
based on the capacity of microor
specifically bacteria, to degradespecifically bacteria, to degrade
quantity of toxic substances
The pollutants are treated as foo
bacteria and these, while feeding
their population at the same tim
water gets treated.
Many processes in the chemical,
, plastic, petroch
industries, etc., generate Waste W
organic toxic com
utilization of biological treat
on the capacity of microor
specifically bacteria, to degradespecifically bacteria, to degrade
quantity of toxic substances.
treated as foo
bacteria and these, while feeding
their population at the same tim

6. Due to its toxicity, biological trea
Waste Water containing a toxic
is difficult, since the microorgan
initially not able to treat that sub
Therefore, the first step to makeTherefore, the first step to make
(Sequential Batch Reactor)
acclimatization, i.e., the
the microorganisms to a par
toxic substrate.
to its toxicity, biological trea
containing a toxic
is difficult, since the microorgan
able to treat that sub
, the first step to make, the first step to make
(Sequential Batch Reactor) oper
the adapta
the microorganisms to a par

7. Acclimatization is commonly pra
case of toxic wastes such as phe
arsenic, cyanide etc.
For example to treat a phenolic w
500 mg/lit. bacteria are exposed
from initial concentration of 20from initial concentration of 20
500 mg/lit
Nutrients are also added to the w
the form of urea, superphosphat
other compound containing N an
Acclimatization is commonly pra
case of toxic wastes such as phe
For example to treat a phenolic w
500 mg/lit. bacteria are exposed
from initial concentration of 20from initial concentration of 20
Nutrients are also added to the w
the form of urea, superphosphat
other compound containing N an

8. Operation and maintenance requir
a. Operations
Waste water treatment plant opera
should be trained person.
The operation of wastewater treatm
includesincludes
1. Putting unit processes and equipm
out of the service.
2. Adjusting chemical feeds (dosage
chemicals).
3. Controlling the treatment process
monitoring efficiency.
Operation and maintenance requir
a. Operations
Waste water treatment plant opera
should be trained person.
The operation of wastewater treatm
Putting unit processes and equipm
Adjusting chemical feeds (dosage
Controlling the treatment process
monitoring efficiency.

9. Sewer system operation includes
1. Pumping stations
2. Control of pretreatment and flow
monitoring to avoid sewer overflomonitoring to avoid sewer overflo
All operations requires documentati
inspection during regular rounds
wastewater treatment plants, ope
hr per day and 365 days per year.
Sewer system operation includes
Control of pretreatment and flow
monitoring to avoid sewer overflomonitoring to avoid sewer overflo
All operations requires documentati
inspection during regular rounds
wastewater treatment plants, ope
hr per day and 365 days per year.

10. Supervisory control and systems a
operators by monitoring equipmen
reporting alarms at a single locatio
The control system may include asThe control system may include as
dialer to notify on cal operators wh
facilities are unstaffed.
Supervisory control and systems a
operators by monitoring equipmen
reporting alarms at a single locatio
The control system may include asThe control system may include as
dialer to notify on cal operators wh
facilities are unstaffed.

11. b. Maintainance
Maintenance staff generally include gene
maintenance workers, electricians and
Q and M staff may
1. lubricate equipment
2. Clean filters2. Clean filters
3. Perform routine tasks
Maintenance staff responsible for Main
inspection, troubleshooting and adjust
various mechanical equipments such a
gates, compressors, conveyors, isolatin
maintenance of analog and digital equi
Maintainance
Maintenance staff generally include gene
maintenance workers, electricians and la
Maintenance staff responsible for Main
inspection, troubleshooting and adjust
various mechanical equipments such a
gates, compressors, conveyors, isolatin
maintenance of analog and digital equi

12. Theory Questions
Q1. Write short notes on
1. Acclimatization of bacteria
2. Operation and maintenance of ET
Theory Questions
Q1. Write short notes on
Acclimatization of bacteria
Operation and maintenance of ET