Capacity, filter tables

Comparisons are available on the relative performance and costs for dewatering municipal sludges (2). The relative performance of different filters and conditioners on waste sludges is shown in Table 3. The same sludge was treated on two belt-filter presses, two different centrifuges, and rotary vacuum filter (75). In another study, a variable chamber filter press, fixed-volume filter press, continuous belt-filter press, and rotary vacuum filter were compared for performance, capacity, and capital and operating costs (69). 

TABLE 17-12 Air-Flow Capacity, Resistance, and Dust-Holding Capacity of Air Filters ... 

Brake horsepower, centrifugal pumps, 200 Driver horsepower, 201 Burst pressure, 405, 456 Cartridge filters, 274-278 Capture mechanism, 279 Edge filler, 278 Filter media, table, 278 Micron ratings, 277 Reusable elements, 281 Sintered metal, 280 Types, 276, 277, 279 Wound vs. pleated, 276, 277 Centrifugal pumps, operating characteristics, 177-180 Calculations, see hydraulic performance Capacity, 180... 

Figure 16 shows the normalized mass distribution inside the filter wall vs. the normalized wall thickness as a function of the utilized capacity of the filter wall, for the low porous and the high porous material (small wall thickness) at a filtration velocity of 4cm/s. The line of the highest utilized capacity gives the state of loading inside the filter wall when the transition from the deep-bed to cake filtration has occurred and there is no more mass entering inside the filter wall. This final state of the mass distribution along the filter wall thickness was calculated for all the cases listed in Table I and the results are shown in Fig. 17. 

The authors have evaluated different C18 and C8 columns, studying the variation in capacity factors with the proportion of water in the mobile phase for all six acid derivatives. The detector was a fluorescence detector equipped with a 360-nm excitation and a 420-nm emission filter. They were unable to resolve derivatives of the six acids on three different C18, 5-/zm columns, despite using a wide range of solvent compositions. Table 3 shows capacity factor values for three critical acid derivatives on a number of columns. When a C8,5-/un column was used with an isocratic solvent system [acetonitrile/water (98 2)], they observed a marked improvement in the resolution of the six derivatives. However, it was not possible to achieve complete resolution of the six compounds under isocratic conditions, despite numerous experiments with a range of organic solvent mixtures consisting of acetonitrile, methanol, tetrahydrofuran, and water. 

Table 23.9 lists the major hemihydrate plants operating in 2000. Many of the smaller facilities on the ninth edition list have been shut down. However, two major single-stage hemi plants have recently started operation. The Indo-Jordan facility has been particularly successful operating at full capacity from the initial startup, and up to 1000 tons per day P205 on two 80-m2 Eimco belt filters. 

A broad variety of particle sizes are available, from microspheres with less than 5-pm particle size up to resins of 700-pm particle size. The large beads can be used as polymeric microreactors.P l As the separation between resin and liquid is still performed by filtration, different glass filters have to be used the porosity and nominal pore size of these filters are listed in Table 5. In those applications where single beads are used (split/mix, single-bead analysis, bead-based assays) it is essential to know the capacity of the single beads. For practical purposes a correlation between bead size and capacity per bead is reported in Table 6. 

Papierfabrik Palm, Newsprint Mill, Eltmann, Germany Table 35.1 shows that Eltmann newsprint mill of Papierfabrik Palm has reduced COD, AOX, and color in their effluents using spiral-wound nanofiltration since 1999. Prior to NF, the effluent is biologically treated (activated-sludge plant) and prefiltered using sand filters. The capacity of the NF plant is 190 m permeate per hour. The flux of the Nadir NF-PES-10 membrane has been around 10-30 L/(m h) [107]. The NF-PES-10 membrane was chosen because of its alkaline stability (pH > 12), which was needed when cleaning the membrane. The reported COD removal is 89%, AOX 61%, and color 93% [59]. 

Both previous [47] and the present studies (Table 4) have shown the correlation between the two processes. Evaluation of carbons depends on concentration and kind of poUutants, physicochemical properties of carbons and conditions of adsorption. It was stated, that order of adsorptivity values in classification in static conditions (equilibrium concentration 0,2 mg/dm of SLS — permissible concentration in potable water) is similar to the total loading of detergent on filters (mg or mg/cm ). Carbons chemically activated show decreased adsorption in dynamic conditions. Greater differences in values of adsorption capacities and changes of order in classification have been observed, when comparison of these processes was carried out in mass loading (mg of SLS/g of carbon). 

---