Nitor CER Cross-Flow Filtration Systems

Transcription

1 Nitor CER Cross-Flow Filtration Systems

2 Nitor Cross-Flow filtration systems - History - The Padovan NITOR Cross-Flow Filtration System was developed in 1989 as an answer to the growing issues posed by Diatomaceous Earth in Europe. TMCI Padovan (Italy) experimented for several years with various solutions to these problems leading to the development of a unique system of crossflow filtration, which is both respectful of the specific organoleptic qualities of wine, while also being highly efficient. Its all in the membranes! 2

3 Nitor Cross-Flow filtration systems - Main advantages - The specific advantages of using cross-flow filtration technology are: No Diatomaceous Earth usage. No negative D.E. flavor effects on the wine. Minimized labor costs as systems can be automated. Greatly reduced wine losses during filtration. 3

4 Nitor Cross-Flow filtration systems - Possible disadvantages - Historically there were some disadvantages seen with cross-flow filtration technology: Limited working life of the filtration membranes. Poor efficiency of the filtration over extended time periods especially when filtering wines with high NTU levels and/or the presence of bentonite. Problematic heating of the wine during filtration. 4

5 TMCI Padovan Solutions The membranes used by Padovan are specifically designed for very long life. Filtration efficiency is optimized by the on-board PLC, using a managed approach which is the only way to efficiently filter wine. Issues of heating during filtration are solved by the unique modular approach to filtration construction. 5

6 Cross Flow. how it works during filtration Filtrate flow Filtrate flow Filtrate flow Filtrate flow 6

7 Cross Flow.how it works (The back flushing/back washing process) Filtrate flow Filtrate flow Filtrate flow Filtrate flow ALL PADOVAN CROSS FLOW FILTERS BACK WASH AUTOMATICALLY 7

8 Membranes Two major types seen in the wine industry: Ceramic Organic 8

9 Technology and function of the ceramic membrane elements The demand for maximum mechanical and chemical stability with minimal flow resistance is met by a carrier with macroporous structure made of pure a Al2O3. The actual membrane is mounted on this base material. It consists of at least one, as a rule several, layers of high-porous ceramic with precisely defined texture, whereby the layer with the finest porosity determines the filtration properties. The schematic representation in conjunction with scanning electron micrographs (SEM) shows a section through carrier and membrane. The multi-layer configuration is clearly visible. The size of the particles is decisive with respect to the intermediate spaces, the pores. The fundamental configuration of a ceramic membrane filter: 1 Coarse-porous (10 μm) carrier body of a Al 2 O 3 in the form of a tube with a wall thickness of 1 2 mm or in the form of a multi-channel element. 2 One or several intermediate layers of a Al 2 O 3 with a pore size of μm and a layer thickness around μm. 3 Separating layers of a Al 2 O 3 and TiO 2 with pore sizes of μm (microfiltration) and nm (ultrafiltration) respectively with layer thicknesses between 0.5 and 10 μm

10 Ceramic multi-channel element The basic module, the ceramic multichannel element The body consisting of high-porous ceramic contains several round channels running parallel to its longitudinal axis on the surface of which the membrane is mounted.the suspension to be clarified flows into the channels along the membrane, whereby a partial stream passes through the membrane as filtrate and is discharged by the carrier material. Due to the veryhigh permeability, the pressure loss on passing through the carrier is so low that it is negligiblecompared to the pressure drop when passing through the extremely thin membrane.

11 Ceramics features Completely inert material Free to choose the right pore size for an optimum filtration Operationally safe Long lifetime High temperature range (135 C),can be sterilized with steam High mechanical stability Very good cleanability Full ph range 0 14 Standard NaOH / HNO3 cleaning agents Higher flux rates Acid and base resistant, solvent resistant Can be regenerated No problems with back flushing Wear resistant No adsorption of valuable (color) components Robust against pressure and temperature Constant flux rate of filtrate over the complete life time cycle Minimum operational costs Short installation and start-up times, due to pre-assembling 11

12 Pore diameter of the ceramic membranes Pore diameter Pore diameter Molecular weight 1.4 μm 1400 nm 1.0 μm 1000 nm 0.8 μm 800 nm 0.5 μm 500 nm 0.2 μm 200 nm 400 kd 0.1 μm 100 nm 200 kd 0.05 μm 50 nm 100 kd 0.02 μm 20 nm 50 kd μm 5 nm 10 kd

13 Ceramic Multi-channel E374-R E196-R Type of Element diameter (mm) length (mm) no. of channels channeldiameter(mm) filtration surface (m²) E374-R ,56 E196-R ,43

14 Ceramic Multi-channel for wine Pore diameter 0,2 mm Type of Element diameter (mm) length (mm) no. of channels channeldiameter(m m) filtration surface (m²) E ,5 1,5

15 Nitor Cross-Flow filtration systems TMCI Padovan cross flow filtration systems are available in two versions each with distinct advantages. Nitor CA XL Series Fully Automatic (from 160 m² to 480m² ) Nitor Smart Fully Automatic (either 20 m², 40 m², 60 m² or 80m² ) 15

16 Nitor CAXL Series Fully Automatic The CAXL Series has the unique advantage of being expandable without changing the base machine configuration simply by adding one module (162m 2 ). 16

17 Nitor CAXL Series Fully Automatic. MODULARITY This modularity gives several very significant advantages: Expandability: CA XL series units can be expanded as standard all the way to 486m 2 Reliability: recirculation pump is used Less than 2 C temperature pick up: because of the use of low rotational speed pumps (1.450 rpm) giving low linear flow rates during recirculation. 17

18 Nitor CA XL Series Fully Automatic 18

19 Nitor CA XL Series Fully Automatic The CA XL Series has a high level of automation giving many advantages for process efficiency Fully automatic programmable back washing during filtration. Fully automated cleaning. Programmable flow rates. Data storage and retrieval. PLC optimized filtration efficiency. Programmable for end of cycle cleaning without operator. Selectable filtration surface area. On-board flow and integrity testing. Available in sizes from 162 m 2 to 486 m 2 19

20 Nitor CA XL Series Fully Automatic 20

21 CA XL Series advantages continued... 5 years membranes warranty. Independent of the cellar. Siemens PLC as standard. Network integration possible. Efficient filtrations at high turbidity for extended time periods. Inert gas sparging during filtration for less than 0.1mg/l dissolved oxygen pickup. 21

22 Optional devices In-line filtrate turbidity monitoring and reporting. In-line filtrate addition dosing. Iso-baric configuration for sparkling wine filtration. Inlet/outlet manifolds for tank management and blending 22

23 Filtration... and TMCI Padovan Automation Fully automatic and programmable yet very simple and intuitive to operate. PLC control with multiple levels of password security. Automatic protection of membrane to prevent fouling. Designed to suit your needs. 23

24 Filtration... and TMCI Padovan Automation 24

25 Filtration... and TMCI Padovan Automation 25

26 Filtration... and TMCI Padovan Automation 26

27 Nitor Smart Series Fully Automatic The Smart Series of Fully Automatic filters features the same level of automation of the CA Series. Designed for applications where space is at a premium. Fully automatic like the CA series. Fully independent of the cellar. Can be located easily by one person. Can be moved by forklift with built in channels. More filtration surface area per sq.ft of floor surface than any other system available. Available as either 20, 40, 60, 80 m 2 27

28 Nitor Smart Series Fully Automatic 28

29 Optional turbidity meter Turbidity reading and control unit with automatic wine divertion when turbidity is above the prefixed value Stainless steel cell including two light sources and two miniaturized photocells. One cell is directly illuminated from a light source, while the other receives only the reflected light from particles suspended in the liquid. The reflected light and the direct light ratio is converted into a signal. This instrument is not sensitive to colour or temperature changes. Graduated display indicating the degree of turbidity in NTU units. 29

30 Customized filter designs available The strongest membrane warranty available On-staff Padovan Engineer

31 Membranes Guarantees Membranes which have been shipped with irreparable faults or damages during the installation of the plant, will be replaced without additional expenses for the end user. Membranes are guaranteed pro rata temporis till the expiry of first of the following events. 5 -years from machine's despatch or working hours (attested by equipment counter) or If one or more membranes will result damaged irreparably before the event, the residual value will be calculated pro-rata temporis and will be discounted from the purchase value of the new ones. It is obligatory to follow scrupulously the instruction manual and, if any doubt arises, please contact immediately the manufacturer. Do not use detergents that have not been authorized by the manufacturer TMCI Padovan. Guarantee will not apply in case of capillary clogging due to limescale, coal (max quantity tolerable 0,3 g/l in the retentate), tartrates, (max quantity tolerable 0,2 g/l in the retentate), PVPP, lees, bentonite, carboxymethyl cellulose-cmc, arabic gum, clay, mud or other inorganic colloids or abrasive solids glasses etc that are suspended in wine or washing water. The juice must be without starch and cellobiose. Max turbidity at inlet 50 NTU (nota da inserire per offerte succo di mela/sidro) It is obligatory to follow scrupulously the instruction manual and, if any doubt arises, please contact immediately the manufacturer. Do not use detergents that have not been authorized by the manufacturer, chemical oxidising products use has to be authorized by TMCI Padovan according to their accurate indications, concentrations and temperature. The use of hydrofluoric acid or concentrated phosphoric acid is strictly forbidden. But phosphoric acid at concentration of up to 5% at temperature of up to 80 C can certainly be used without any problem, on a routinely basis, as part of the cleaning process. Sudden change of temperature of the liquid in the module/s has to be avoid; the maximum heating /cooling rates should be kept below 10 C /minute. The filter will be installed inside a building in which freezing of wet ceramic elements should never take place (minimum temperature 4 C). The user of the filter unit is obliged to use the prefilter for all type of liquids. Remove prefilter during filtration is strictly forbidden. Cleaning of channels by mechanical elements is absolutely forbidden. Never try to cleaning blocked channels with welding wires. If the user did this action, the warrantee mentioned above would expire. The ceramic modules should only be handle by person which are well trained and authorized by TMCI Padovan. 31