|
ACT has installed a number of SRS units in industrial and municipal WWTPs serving populations of 10,000 – 20,000 both in Israel and in the US.
These installations demonstrated:
-
Potential sludge reduction of 60-70% for full-scale processing of all incoming sewage
-
Significant cost savings to the plants
-
Consistent performance despite variable waste water composition
-
Functionability in a wide temperature range (-20C to +40C)
-
Easy integration into WWTP with different WW processes
-
Short Installation time with no need for infrastructure changes
-
24/7 reliability
SRS installation in Israel (April – May 2009):
WWTP parameters:
WWTP Process – aerobic activated sludge process
Waste water composition – municipal and industrial
Average incoming flow - 8000 cubic meter/day
Average TSS – 400 mg/l
Environmental conditions – Temperature range: 20C-35C
The SRS was installed for 2 months, processing 20-30% of the flow. The results below summarize the impact of the SRS on the WWTP operations.
|
 |
| |
Without SRS
|
* With SRS
|
Improvement percentage
|
Full-scale improvement estimation
|
| Average Sludge production (ton/month) |
400 |
310 |
22.5% |
70% |
| Electricity consumption (Kwh/m3) |
0.89 |
0.702 |
21% |
30% |
| Centrifuge working hours (hours/month) |
487 |
267 |
45% |
70% |
| Chemical consumption (kg/month) |
873 |
650 |
16% |
64% |
*Based on customer data
|
SRS installation in Ohio, USA (January – March 2009)
WWTP parameters:
WWTP Process – aerobic activated sludge with anaerobic digestion
Waste water composition – municipal
Average incoming flow - 12000 cubic meter/day
Average TSS – 250
Environmental conditions – Temperature range: -20C-5C
The SRS was installed for 3 months, processing 10-15% of the flow. The results below summarize the impact of the SRS on the WWTP operations.
|
|
| |
*Improvement percentage
|
Full-scale improvement estimation
|
| Average sludge production |
38.5% |
65% |
| Belt press working hours (hours/month) |
35% |
60% |
| Chemical consumption (kg/month) |
38% |
60% |
*Based on customer data
Sludge reduction by the SRS: The graph shows significant decrease in sludge production during the months (Jan-March 2009) of the SRS operation.
