The document discusses the construction, operation, and maintenance of trickling filters. It describes the technology, materials, and analysis used in construction. It explains the biology of bacteria and microorganisms involved in operation. Maintenance requires periodic washing to prevent clogging and monitoring by a skilled operator. Designs can include one-stage or two-stage filters. Advantages include high nitrification and good dependability, while disadvantages include head loss and high costs.

1. CONSTRUCTION,OPERATION
AND MAINTENANCE OF
TRICKLING FILTER
PRESENTING BY :
SHANU KUMAR & SHIVAM SANOO

2. RECAP
SHIVAM:
ATS
GANG BANG
EMPLOYEES(TYPES)
OPERATION
SHANU:
PONDERING
DESIGN
ADVANTAGES
DISADVANTAGES

3. TRICKLING FILTER

4. CONSTRUCTION AND
OPERATION-1
Technology of Concrete:
Reinforced Concrete
Sulphate Resisting Cement
Vitrified Clay blocks
Analysis of structure:
Loading
Efficiency
Performance

6. CONSTRUCTION AND
OPERATION-2
Biology:
Bacteria and other microorganism
Environmental engineering

7. MAINTENANCE
A skilled operator is required to monitor the filter
and repair the pump in case of problems.
The sludge that accumulates on the filter must be
periodically washed away once in five to seven years
or more to prevent clogging and keep the biofilm thin
and aerobic.

9. DESIGN
ONE STAGE FILTERS
TWO STAGE FILTERS

10. DESIGN
ONE STAGE FILTERS
TWO STAGE FILTERS
10
Scheme of Two Stage Trickling Filters
1 - primary sludge; 2 - first stage trickling filter; 3 - first stage secondary clarifier; 4 - second stage
trickling filter; 5 - second stage secondary clarifier; 7 - recirculating purified wastewater; 8 -
primary and secondary sludge

11. MERIT AND DEMERIT
Highly Nitrified
Good dependability
Removal of suspended solids
LOSS OF HEAD
HIGH COST
REQUIRE PRE TREATMENT

12. REFERENCES
WASTE WATER ENGINEERING, BY BC PUNMIA
Introduction to Trickling Filters and RBC's Study Guide by
Wisconsin Department of Natural Resources
Wastewater Technology Fact Sheet Trickling Filters by
United States Environmental Protection Agency
WASTEWATER ENGINEERING by Dr. Asha Gupta
.....and so many