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Waste biomass collectible

California Forest thinnings, mill wastes, rice straw, energy crops, hybrid popular Modified boilers, fermentation Power and possibly ethanol 809-1214 800 Waste biomass collected from several locations not included in growth area... [Pg.564]

Again, there is no question of the physical availability of biosolids. They are collected in municipal wastewater systems and are therefore available in centralized locations. But in this case, treatment is essential for health reasons and protection of the public. Unless processes exist that can be used to treat and stabilize the waste and at the same time recover energy, it does not make much sense to use untreated biosolids as a waste biomass feedstock. In fact, such processes exist and will be discussed in some detail in later chapters. The other option to consider is the utilization of treated biosolids as a waste biomass. [Pg.142]

The availability of animal excreta for use as waste biomass is difficult to estimate without a detailed inventory of how much is collected, dropped in the field... [Pg.144]

Biomass processing residues All processing of biomass yields by-products and waste streams collectively called residues, which have significant energy potential. Residues are simple to use because they have already been collected. For example, processing of wood for products or pulp produces sawdust and a collection of bark, branches, and leaves/needles. [Pg.122]

The laboratory studies utilized small-scale (1-5-L) reactors. These are satisfactoiy because the reaction rates observed are independent of reac tor size. Several reac tors are operated in parallel on the waste, each at a different BSRT When steady state is reached after several weeks, data on the biomass level (X) in the system and the untreated waste level in the effluent (usually in terms of BOD or COD) are collected. These data can be plotted for equation forms that will yield linear plots on rec tangular coordinates. From the intercepts and the slope or the hnes, it is possible to determine values of the four pseudo constants. Table 25-42 presents some available data from the literature on these pseudo constants. Figure 25-53 illustrates the procedure for their determination from the laboratory studies discussed previously. [Pg.2219]

Municipal solid waste (MSW), 25 864 as biomass, 3 684 cadmium in, 4 489-490 characteristics of leachates in, 25 867t characterizing, 25 866-869 collection of, 25 869-870 composition analysis for, 27 365t ferrous scrap in, 27 411 incineration of, 25 872-873 mixed, 27 367-369 preparation of, 27 367-369 processing, 27 364-371 quantity and composition of, 27 362-364 recovery rates for, 27 364, 366-367t recycled, 27 360, 362-371 toxic chemicals in, 25 875-876 Municipal waste sludge, as biomass, 3 684 Municipal water, for aquaculture, 3 198 Municipal water softening methods,... [Pg.607]

Wood biomass involves trees with cotranercial stracture and forest residues not being used in the traditional forest products industries. Available forest residues may appear to be an attractive fuel source. Collection and handling and transport costs are critical factors in the use of forest residues. Although the heat produced from wood wastes is less than that from oil or gas, its cost compared to fossil fuels makes it an attractive somce of readily available heat or heat and power. The most... [Pg.47]

Raw material cost This part of cost includes the raw material purchase, collection and transport. According to the contract, the raw material is provided by the timber mill and the cost of biomass wastes is about 0.06Y/kW.h. [Pg.470]


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