Collection frequency

Containers To a large extent, the types and capacities of the containers used depend on the characteristics of the solid wastes to be collected, the collection frequency, and the space available for the placement of containers. 

Sample type Collection frequency Analysis frequency... 

Similarly, the collective frequency A and the collective coupling function C(q) are parametrically dependent only on X ... 

Radiotoxicity depends on energy deposition in tissue or organs by the radionuclide, the specific tissue exposed to the radionuclide, and the tissue radiation sensitivity. Energy deposition by a radionuclide is a function of its emitted radiations and half-life. Biokinetic studies have identified for most radionuclides of interest the pattern of movement through the body and the effective turnover rate (the sum of the biological and radioactive turnover rates). Biokinetic information also identifies the appropriate type of sample to be collected among blood, urine, feces, saliva, breath, hair, teeth, nasal swipes, and tissue obtained incidental to unrelated operations, and collection frequency. The measured radionuclide concentrations are combined with biokinetic information to calculate the committed dose equivalent, the indicator of radiation impact on the subject (NCRP 1987b). 

The program DQO specifies the types, locations, and collection frequency of these QC samples. 

The curbside service, which was divided into two collection areas (north and south), had extremely different responses. The north end (1,000 customers) collected 25,300 lbs. plastic, while the south end (3,500 customers) collected 13,594 lbs. plastic. Possible explanations for this large difference was the collection frequency for the south end (monthly) compared to the north end (weekly) and the different socieconomic smicture between the two areas. Another difference is that a greater percentage of people in the south end surveyed (40%) thought that the plastic was "too messy," as compared to the north end (30%). 

Households in the service area Household participation rate Collection period setout rate Collection frequency... 

Option Equipment Collection device Collection frequency Collection davs 1 Existing Bag Weekly Weekend 2 Special Bag Weekly Weekdav 3 Special Bin Weekly Weekdav 4 Existing Bag Bi-Wkly Weekend 5 Special Bag Bi-Wkly Weekdav 6 Special Bin Bi-Wkly Weekdav... 

As a first step, the group distributed a survey to active members of SPS to collect frequency/type data on the commonly used ion channels in their laboratories to obtain qualitative information on their relevance to drug-induced cardiac safety concerns, with a specific focus on proarrhythmia. The survey was critical in identilying seven ionic currents that are routinely studied because of perceived safety concerns I, /ks, to, h, ca, Na[ st], Hud /Na[iate] these currents were described in Table 9.1. Consequently, protocols are being developed for each of these ionic currents, with the intent of gathering key data to be used for in siUco action potential reconstructions. 

Figure 2 also shows conditions for these complexes. For example, the collection frequency, collection amount, type of vehicle used for collection, existence of transshipment and storage complex, identitication of intermediate treatment factory, time window, and route group arrangement are described for collection complexes. 

The nature of food scraps (high putrescence and moisture). This asks for the adoption of specific tools, systems and collection frequencies in order to ensure the system is clean and user-friendly . When people feel comfortable, the overall participation is enhanced. This leads to better quality and higher quantity collections, and lowers the percentage of food stuffs inside the RW, making it possible to collect it less frequently. In effect, analytical measurements, where a door-to-door (DtD) collection is adopted, report the content of food stuffs inside RW at an average of 15% and even less [2], which is much lower than in previous source separation programmes across Europe (see numbers reported above). 

Increases the capture of food stuffs, which in turn allows a significant reduction in the collection frequency for RW. 

Furthermore, evaluation of the cost for a single waste flow, does not allow one to compare its cost to the likely advantages of collection costs for other materials, flowing from operational integration . In effect, the collection of food waste, above all when it shows high capture, allows important changes in the collection scheme, by reducing, for instance, collection frequency for RW. 

Cutting down collection frequencies for RW constitutes in itself one of the most important tools to optimise schemes for the source segregation of food waste. Its use is particularly effective in those areas where high collection frequencies are in place for traditional, mixed MSW collection (mostly Southern Europe). 

The following scheme (Table 14.4) shows the typical collection frequencies for mixed MSW and for integrated collection systems where food waste is segregated. Frequencies applied in Southern Italy work perfectly in many Mediterranean situations, as well, where a mixed collection is traditionally run 6 times/week. 

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