Important process details are determined, e.g. the features and lengths of the process zones, the material residence time and the burning mode of carbon in each zone, the clinkering reaction course and the maximum burning temperature.
Wastewater ponds, however, differ greatly from natural water bodies, for example, lakes and oceans in nutrient loading, oxygen demand, depth, size, water residence time, material residence time, and flow pattern [ 154].
Important factor that determines the concentration of fluoride in groundwater is availability and the solubility of F minerals, pH, temperature, anion exchange capacity of aquifer materials, type of geological materials and residence time, porosity, structures, depth, groundwater age, the concentration of carbonates and bicarbonates in the water (Apambire et al. 1997; Kim and Jeong 2005).
The chloro-alkaline indices (CAI-1 and CAI-2) were used to study a possible ion exchange between the groundwater and the aquifer materials during the residence time and movement (Schoeller 1965; Marghade et al. 2012).
The amphipathic octadecyl-quaternized carboxymethyl chitosan (QACMC) was used as a novel cationic material to prolong the residence time and improve the ocular bioavailability.
However, the mixing of granulation liquid and powder material during the short residence time inside the screw chamber and the atypical particle size distribution (PSD) of granules produced by twin screw granulation is not yet fully understood.
The productivity, thermal behavior, activity of body materials, pressure drop and residence time distribution (RTD) of the two reactor types were investigated.
The residence time of material in the process frequently determines the product properties.
In a sensitivity analysis, three parameters were identified to strongly influence the model performance, the surface area of the biofilm per unit volume of packing material (AS), the empty-bed residence time (EBRT), and the microbial yield coefficient on BA YBBA YB
In first instance, the residence time of material inside the barrel was investigated as function of screw speed and moisture content followed by the visualization of the granulation liquid distribution as function of different formulation and process parameters (liquid feed rate, liquid addition method, screw configuration, moisture content and barrel filling degree).
The mean residence time of material in any arbitrarily defined internal region of a continuous flow system is shown to equal the holdup in that region divided by the flow rate through the system as a whole: it is thus independent of the flow rate through the region itself and the manner in which the region connects with the remainder of the system.
