Klargester Envirosafe
Process Described
Envirosafe sewage treatment plants employ a combination of aerobic and anerobic processes in a fluidised bed arrangement. This operates in conjunction with an advanced system of air diffusers and selected media to  deliver optimum levels of purification.
This process takes place in three distinct stages:-
-
Primary Settlement
This is the initial stage of treatment and simply involves the settlement of larger solids present in raw sewage and wastewater for subsequent gradual breakdown. Envirosafe features two chambers to ensure efficient operation with a flow balancing facility.
- Biological Treatment
Substantial BOD reduction takes place here, where the carbonaceous pollutants are removed by presenting the sewage to the micro-organisms in the presence of oxygen.
The treatment is achieved by high efficiency air diffusers continually pumping oxygen through the biological media'. Standard Envirosafe models utilise two aerobic treatment chambers for lower performance applications. Where higher effluent standards are required, the plant employs a third anerobic zone.
- Settlement
A natural by-product of biological treatment is humus sludge and this is separated for further treatment. The treated effluent is discharged via the outlet. In standard configuration Envirosafe will deliver a treatment better than 20mg/l BOD, 30mg/l S.S., with ammonia levels better than 5mg/l depending on the application. Total nitrogen consents can be achieved with this plant (contact WTE for your application).
Flow Management
Envirosafe’s design incorporates flow management in order to avoid volume variations and to minimize flow impact on the final settlement process. Flow management ensures that final effluent quality remains consistently high.
Options
- Choice of inverts (from 0.5 to 2.0m)
- Duty and Standby blowers (as required)
- Alarm Systems
- Pumping stations
- Extension shafts (to 2.0m maximum standard invert)
- Separate sample chambers for accurate and convenient effluent sampling, as required by the relevant authorities.
WTE offer a full Installation service. Please visit our Installation section for more information.
WTE offer a full after sales service involving scheduled maintenance visits.
Envirosafe Technical Specifications
| Model |
34000 |
38000 |
42000 |
47000 |
55000 |
67000 |
80000 |
| A Overall Length (m) |
7.4 |
8.2 |
9.0 |
9.7 |
11.2 |
13.5 |
15.8 |
| B Overall Width (m) |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
| C Height (m) |
|
|
|
|
|
|
|
| 560mm Inlet / 860mm Outlet Invert* |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
| 1060mm Inlet / 1360mm Outlet Invert* |
3.4 |
3.4 |
3.4 |
3.4 |
3.4 |
3.4 |
3.4 |
| 1560mm Inlet / 1860mm Outlet Invert* |
3.9 |
3.9 |
3.9 |
3.9 |
3.9 |
3.9 |
3.9 |
| 2060mm Inlet / 2360mm Outlet Invert* |
4.4 |
4.4 |
4.4 |
4.4 |
4.4 |
4.4 |
4.4 |
| D Diameter (m) |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
| Volume (m³) |
34 |
38 |
42 |
47 |
55 |
67 |
80 |
| Weight approx (kg) |
3000 |
3200 |
3400 |
3800 |
4200 |
4700 |
5400 |
| Inlet / Outlet Diameter (mm) |
160 |
160 |
160 |
160 |
160 |
160 |
160 |
| BOD 5ATU load (kg/day) |
4.5 |
6 |
7.5 |
9 |
12 |
15 |
18 |
| Ammonia (kg/day) |
0.6 |
0.8 |
1.0 |
1.2 |
1.6 |
2.0 |
2.4 |
| Maximum flow (m³/day) |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
| Retention time (hrs) |
33 |
29 |
29 |
33 |
29 |
29 |
|
Notes:
* Extension turrets can be added to achieve deeper inverts, though this can limit access for maintenance. Alternative pipe sizes may be ordered.
Weights are for empty tanks. All weights are approximate.
Kingspan Environmental reserve the right to alter the above dimensions without prior notice.
WTE are able to assist with the mandatory consent to discharge application from the Environment Agency or SEPA prior to installation.
All Klargester products have a full initial 12 month warranty covering all mechanical and electrical components against malfunction, provided the unit has not been subject to damage or abuse
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