COMBINED SEWER OVERFLOW POWER GENERATION: WEEKLY PROGRESS REPORT
ARATHI REDDY BALAPURAM PROJECT MANAGER
OMER KHAN COMMUNICATION MANAGER
RANGA SAI KURELLA RESOURCE INVESTIGATOR
SOAK PITS
Artificial recharge is a process by which excess surface-water is directed into the ground – either by spreading on the surface or by using recharge wells, or by altering natural conditions to increase infiltration.
The chemical does not leave any harm full substances to the water that is passing through it and the water is safe to reach the ground water table.
LAYERS OF SOAK PIT
HBG metal of ½ or ¼ part bricks
Crushed sand layer 0.15m
Coal powder layer of 0.024m
River sand layer 0.156m
Baby chips layer 0.088m
WORKING MECHANISM
As waste-water percolates through the soil from the soak pit, small particles are filtered out by the soil matrix and organic matter is digested by micro-organism.
With the usage of Sodium polyacrylate the absorbent capacity is increased by 300 times, thereby it creates more storage capacity.
Soak pit are best suited to soils with good absorptive properties; clay, hard packed or rocky soils are not appropriate
MAINTAINENCE
The effluent should be clarified or filtered well to prevent excessive build up of solids.
The Soak Pit should be kept away from high-traffic areas.
Particles and biomass need to be cleaned or moved to prevent the clogging.
A removable lid may be used to seal the pit for future access.
RESULTS
the absorption capacity of the soak pit increased with the increase in the percentage of the sodium poly acrylate.
1.25% of sodium polyacrylate by volume of the soak pit can be treated as optimum percentage.
SOLUTION FOR OVERFLOW
SIMULATION RESULTS
SIMULATION RESULTS
COMPONENTS AND COST
| CASE STUDY | Number of buildings | Number of solar panels | Number of inverters | Number of batteries | Number of optimisers | Estimated output(MWh/year) | Total cost |
| FroniusSoftware | 5 | 1224 | 21 | 13 | 0 | 477.357(without losses estimation) | 714057 |
| SolarEdge Software | 6 | 1862 | 4 | 0 | 939 | 498.36 | 762170 |
REVIEW OF CASE STUDIES
BESS: SINGLE LINE DIAGRAM
The system consists of the following major items:
1. A dedicated Battery Energy Storage System building.
2. Two strings of batteries, complete with manual disconnect switches and fuse protection.
3. Battery monitoring control cabinet providing peak shaving and state-of-charge control.
4. Personal computer interface to the battery monitor for data display, battery maintenance and data acquisition.
5. A power conditioning system (PCS), which provides bidirectional power conversion between the ac and dc systems. 6. Station control for sequencing and control of the power converters.
7. Remote operator’s panel located in the plant control room. 8. Fused main BESS disconnect switch.
9. Power factor correction capacitors and harmonic filter to meet IEEE 519. [l]
10.Relay panel responsible for detecting a utility outage and supervising the operation of the main plant service breaker
Battery Monitor Control
The battery monitoring control performs five major
Calculates the state of charge of the battery.
Provides battery charging and discharging control.
Monitors the health and status of the battery,
Records battery operation for future optimization.
Detects ground faults.
The Battery Monitoring function is implemented in a PLC, working with the Operator Interface Computer. The computer consists of an industry-standard PC running a graphical interface program for data storage and display.
SECOND LIFE BATTERY COST:
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