Contextualization of available technologies in wastewater treatment: from BIODISC to MBR

1. Contextualization of available technologies in wastewater treatment: from BIODISC to MBR Eng. M. Galdi Eng. K. Al Zeer Eng. R. Ruggiero

2. CANNON Group • Italian group • International, present in 40 countries • Industrial engineering • 900 employees • 200 m€ turnover • Fields of Activity • Plastics Processing (59%) • Heat & Power (24%) • Water Treatment (13%) • Automation Machine (4%)

3. ARTES Ingegneria S.p.A. was founded in 1975 as the Company within the BONO Group in charge of the waste water treatment market Peschiera Borromeo Milano Oliveto Citra Salerno Salerno Headquarter

4. Total Area : 30.000 m2 Covered Area : 8.900 m2 Workshop : 7.800 m2 Office : 1.000 m2

5. Technical Dept. 25 Sales & Marketing 15 After Sales Services 5 Purchasing & Warehouse 3 Administration Dept. 3 Production Supervisors 3 Quality Dept. 3 Workshop 33+15 Total Employees 105

6. OUR CERTIFICATES • ISO 9001:2008 certified • ISO 14001 & OHSAS 18001 in progress • ASME Authorisations – “U”, “S”, “R” code stamps • Quality Control Personnel: • Quality Assurance manager • Quality control inspectors • Quality control assistants

7. OUR CUSTOMERS (OIL&GAS)

8. OUR CUSTOMERS (POWER GENERATION)

9. OTHER CUSTOMERS

10. Export

11. Europe, Russia and CIS Countries 26% America 6% Middle East & Africa South Est Asia & Oceania 48% 20%

13. SECTORS • Food and Beverages

14. SECTORS • Textile & Laundry

15. SECTORS • Paper

16. SECTORS • Pharmaceutical and Chimical

17. SECTORS • Building & Construction

18. Tourism & Recreation

19. Potabilization

20. TECHNOLOGY

21. BRC +DCl BRC + MF + DUV AS + MF + DUV MBR + DUV Where: BRC = BIOLOGIC ROTATING CONTACTOR DCl = DISINFECTION WITH CHLORINE MF = MICROFILTRATION DUV = DISINFECTION WITH UV LAMP AS = ACTIVATED SLUDGE MBR = MEMBRANE BIOLOGICAL REACTOR

22. rotation BRC water submerged for about40% tank  BRC = BIOLOGIC ROTATING CONTACTOR

23. pannel airtight lid shaft gear motor BRC

24. BRC

25. BRC • Advantages: • Easy to absorb overload without failure in the treatment process • No bulking problems, no filament bacteria • Easy to expand and upgrade, it is a modular plant • Ability to process a very low organic loads; Unlike the activated sludge plants • Less space occupied for the oxidation step and the step of final sedimentation • Reduced need for energy consumption (about 40% less than the activated sludge plant) • Automation and ease of use • Very low levels of noise • Limited environmental impact. There are no problems with troublesome odors and / or aerosols. Since each unit is fitted with an airtight lid • No need to recycle sludge, self-regulating plant • Handicaps: • Possible mechanical problems • Limited efficiency: Compared with AS or MBR

26. MBR = MEMBRANE BIOLOGICAL REACTOR • A membrane bio reactor is... • a combination of biological waste water treatment and membrane filtration • a membrane filtration which separates biomass from water • a membrane filtration which is based on ultra or micro filtration

27. Frompreliminary treatments Aerobic step Sand filter anoxic step conventional Activated Sludge process Q membrane 4Q Q anoxic step Aerobic step 5Q MBR process

28. 4 Qm Qm Qm Suction pump 5 Qm Recirculation pump blower blower PROCESS DIAGRAM MBR

29. Why to use an MBR 1. Recycling Possibility • Safe rejection of biomass, solids and bacteria • Pre-treatment for following treatment steps (reverse osmosis, nano filtration, UV and ozone) 2. Plant size • Place saving installation due higher sludge concentration • Increasing of capacity in an existing plant 3. Effluent Quality • Enhanced quality of treated water • Constant quality of treated water • Conformance of enhanced standards of hygiene(EC guidelines for bathing water) • Higher efficiency due increasing concentration of biomass in the activated sludge tank

30. What is …Contextualization • Means: • plants with easy maintenance and management, reliable, and simple installation to be served for small, medium and large rural settlements; • plants that are technologically "state of the art" of higher cost, but performance significantly better in terms of quality of produced water, to be served in settlements where the environmental impact is important, where the presence of skilled personnel is possible, where the quality of treated water is particularly important (settlements in bathing areas, Hotel, resorts, etc.);

31. The parameters that we will consider are : • Efficiency • Installationcost • System's complexity (difficulty in finding qualified personnel) • Enviromental impact

32. 1,0 efficiency 0,8 0,6 0,4 0,2 0,0 installation cost

33. 1,0 system's complexity 0,8 0,6 0,4 0,2 0,0 installation cost

34. installationcost environmental impact

35. system's complexity 0,0 0,2 0,4 0,6 0,8 1,0 efficiency

36. By "contextualize" we define four areas with different needs (about water quality and environmental impact) and different resources (about financial resources and specialized personnel): ruralareas (low economicresources, low availability of specialized personnel, where the environmental impact and the water quality are not very important) inlandareas (where the environmental impact isnotveryimportant, thereisn’t specializedpersonnel, the water qualityisimportantenough and there are sufficient economic resources) coastalareas (where the environmental impact and water quality are importantenough and you can find both the economic resources that qualified personnel) touristicareas (where the environmental impact and water quality are veryimportant and tofind financial resources and qualified personnel is not a problem)

37. intersecting the defined areas and the needs/resources above described on we obtain a value “V” 1 = LOW IMPORTANT/ NO AVAILABLE 4 = VERY IMPORTANT/ AVAILABLE

38. With “V” = 4 BRC + DCl

39. With 4 < “V” < 6 BRC + F + DUV

40. With 6 < “V” < 12 AS + F + DUV

41. With 12 < “V” < 16 MBR + DUV

42. THANK YOU FOR YOUR ATTENTION! Eng. M. Galdi Eng. K. Al Zeer Eng. R. Ruggiero