Other Design Criteria

Brackish water. Usually associated with salty water, brackish water TDS levels range from 2,000 to 20,000 ppm or more. Most industrial sources of RW supply may be well water, surface waters, or the like, but do not specifically have to contain high levels of sodium chloride. The RO applied pressure required is from 250 to 600 psig, and the permeate recovery rates are typically 60% down to perhaps 40%. There is a tremendous variety in so-called brackish water sources, and correct membrane selection and other design criteria are critical to manufacturing an efficient RO plant. 

The other design criteria are then employed to provide the provisional plate specification given in Table G.2. 

Reference A3 (Figure 11.28) details the recommended plate configuration for liquid flowrate versus column internal diameter. A reverse flow-type sieve plate is suggested as shown in Figure 9.3. The pitch of the sieve-tray holes is selected so that the total hole area is reduced to 0.07 times the total column area. The other design criteria employed to provide the provisional plate specification are detailed in Table G,3. 

Other design criteria include maximum weight, length, and/or diameter limitations to facilitate installation and maintenance. Use of standard replaceable components minimizes inventory. 

Agitation problems that require other process results, such as the suspension of solids or the dispersion of gas, use other design criteria [8, 9]. 

Other design criteria could be found in the special literature and mentioned in the recommended literature for this chapter. A few software programs for kinetic modelling like ModEst 6.0/6.1, which will be discussed in the following section, incorporate experimental design routines. 

Many fundamental design criteria have nothing to do with the capacity equation. Evaluating their impact on building cost is therefore easier. They can vary independently of other design criteria. For example, as the snow load increases, the roof costs increase. 

Prom the practical point of view, we can compare any existing solution against the one that minimizes both time and space. Therefore, if other design criteria (including technical implementation constraints) are to be taken into account, we have a good basis for performance evaluation. 

D Sterilization Methods Using Other Design Criteria... 

Other Design Criteria. The Department s Design Manual contains many other details on proper geometric design techniques. These criteria are obviously applicable to new construction and reconstruction. For 3R projects, these criteria have heen evaluated and a judgment has heen made on their proper application to 3R projects. Unless, stated otherwise in this Chapter, the criteria in other chapters apply to 3R projects and should be incorporated if practical. 

This criterion is typically the first mentioned, imderstand-ably so as several other design criteria are based on it. 

Several states indicated that other design criteria should be included. The most cited features were clear zone intersection sight distance and accommodations for pedestrians, bicyclists, and Americans with Disabilities Act requirements. 

OR Design speed defines a significant number of other design criteria. Superelevation and lane width affect the overall safety of the project for the users. Intersection sight distance, left-turn lanes, right-turn lanes... 

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