1. Cavitation – Ferment Waste Water Treatment
Local Engineering Systems, Ltd, Russia, Tomsk, st. Govorova, 19 «B». Tel. +7 (3822) ,

2. Local Engineering Systems, Ltd
Waste - Water

3. Waste – Water Treatment Process
Local Engineering Systems, Ltd
Waste – Water Treatment Process
River, Lake, See
Pure Water
Warehousing
on sludge beds
Waste Water
combustion
Activated
Sludge
Polygon of
waste products
Fertilizer

4. The Classical scheme of waste-water treatment
Local Engineering Systems, Ltd
The Classical scheme of waste-water treatment

5. Main problems of the classical Waste-Water Treatment Plants
Local Engineering Systems, Ltd
Main problems of the classical Waste-Water Treatment Plants
Odour nuisance
Placement of the Waste-water Treatment Plant (WWT) far away from residential area (10-20 km)
Building of incoming collector (sometimes their cost may exceed the cost of very WWT plant)

6. Main problems of the classical Waste-Water Treatment Plants
Local Engineering Systems, Ltd
Main problems of the classical Waste-Water Treatment Plants
Presence of first and secondary settling basins, using of horizontar aerotanks
Necessity of relatively big territory for WWT plants
For example, for building of WWT Plant with capacity m3/day it is necessary to have 22 hectars, it costs a lot of money

7. Main problems of the classical Waste-Water Treatment Plants
Local Engineering Systems, Ltd
Main problems of the classical Waste-Water Treatment Plants
Activated sludge
(dampness %)
Sludge beds
Again big territory

8. Main problems of the classical Waste-Water Treatment Plants
Local Engineering Systems, Ltd
Main problems of the classical Waste-Water Treatment Plants
Heavy electricity consumption and using of chemical reagents
maintenance of WWTP is expensive
cover of expenditure is very long,
15-20 years
Therefore the building of WWTP is not interesting for investors

9. Our answer is YES!!! Is it possible to change the situation?
Local Engineering Systems, Ltd
Is it possible to change the situation?
Our answer is YES!!!

10. THE CAVITATION-FERMENT SCHEME OF WASTE-WATER TREATMENT PLANT (WWTP)
Local Engineering Systems, Ltd
THE CAVITATION-FERMENT SCHEME OF WASTE-WATER TREATMENT PLANT (WWTP)
Mechanical purification with sewage regulator
Bioreactor
(I,II grade)
Sedimentator
(additional Oxidation)
Biofilter
(aftertreatment)
Ultraviolet irradiation (UVI)
Ferment and cavitation stage
(dehelmintization)

11. Local Engineering Systems, Ltd
Bacteria perform the main job in the classical biological purification of waste water. Can we help them somehow to intensity the purification process, for example, with ferments? The ferments are catalysts of biochemical reactions, therefore they can accelerate the decompose process at hundred – thousand times. We use the cavitation process for destroying relatively large microrganismes and thereby to provide an appearance of the ferment groups in the waste water.

12. Local Engineering Systems, Ltd
Cavitator

13. Activated Sludge before and after cavitation
Local Engineering Systems, Ltd
Activated Sludge before and after cavitation
before after

14. As a result of the Cavitation – Ferment Treatment
Local Engineering Systems, Ltd
As a result of the Cavitation – Ferment Treatment
1. Absence of odour
2. Placement of the WWT Plant directly in the residential area

15. 3. Placement of the WWTP in one building
Local Engineering Systems, Ltd
3. Placement of the WWTP in one building
Ulan-Ude, m³/day

16. As a result of the Cavitation – Ferment Treatment
Local Engineering Systems, Ltd
As a result of the Cavitation – Ferment Treatment
4. Absence or reducing of the incoming collector length
5. Reducing of maintenance costs at 3-5 times
much less electricity consumption
no chemical reagents
reduction of stuff

17. - secondary settling basins
Local Engineering Systems, Ltd
6. Reducing of the required territory at times.
No:
- secondary settling basins

18. - horizontal aerotanks
Local Engineering Systems, Ltd
- horizontal aerotanks
- air compressor building

19. For example, WWT Plant, capacity 100 000 m³/day
Local Engineering Systems, Ltd
Thus, we can return investments only by reduction of the territory
For example, WWT Plant, capacity m³/day
S=20 hectars
S=0,2
hectars
Territory in the classical case
Territory in the Cavitation-Ferment case

20. As a result of the Cavitation – Ferment Treatment
Local Engineering Systems, Ltd
As a result of the Cavitation – Ferment Treatment
7. Absence of chemical reagents
8. Obtaining of technogenic humus
We are getting the additional channel for returning of investments, time of returning is reducing up to 5-10 years

21. Local Engineering Systems, Ltd
Technogenic humus

22. As a result of the Cavitation – Ferment Treatment
Local Engineering Systems, Ltd
As a result of the Cavitation – Ferment Treatment
9. Reducing of the initial and maintenance expenses
10. Ecological and cheap solution of the activated sludge utilization

23. Typical vertical aerotank
Local Engineering Systems, Ltd
Typical vertical aerotank

24. Result of using of the technogenic humus
Local Engineering Systems, Ltd
Result of using of the technogenic humus
Young growth of the winters wheat
Without of the anthropogenic humus
With anthropogenic humus

25. Thanks for your attention!