Disposal methods components

In many countries starter batteries are almost 100 percent recycled PVC separators can cause some problems here [67]. A prior separation of PVC from other battery components, which is quite tedious, would be desirable, because a PVC content decreases the recycling purity of the container polypropylene and makes further processing of this plastic more difficult. Also, any chlorine compounds liberated can form environmentally hazardous products with other substances the usual remedy is to install costly filter stations, with the residues representing possibly toxic wastes requiring special disposal methods. 

The use of animal livestock waste for chemical production would provide a solution for this otherwise problematic material. Because of increased large-scale livestock operations, the waste has become locally concentrated to levels that often exceed enviromnentally desirable disposal methods. The composition of animal waste is not adequately documented to determine which chemical manufacturing processes would benefit from its use as a feedstock. The limited information on the composition of catirahydrates, protein structure, and other components needs to be expanded. The secondary issue is the need to develop appropriate separation and cleanup processes to produce useful and consistent feedstock for chemical production. It is clear that there are economically interesting amounts of waste available for processing if sufficient amounts of feedstock can be economically derived from it. 

The rate of degradation of a material manufactured to be biodegradable has to be consistent with the disposal method and other components of the pathway into which it is introduced, such that accumulation is controlled. 

Treatment technologies used in the porcelain enameling industry are generally chosen to remove the major wastewater components, such as suspended solids and toxic metals. Table 8.15 presents a summary of the treatment and disposal techniques used by this industry. Usually more than one treatment methods will be used at each facility.3 610... 

Landfill methods are considered the most economical and environmentally acceptable way of disposing of solid wastes throughout the world. Even with the implementation of waste reduction, recycling, and transformation technologies, disposal of residual solid waste in landfill will still remain an important component of an integrated solid waste management strategy.4... 

This removal of size residues inevitably raises environmental questions. Unfortunately, the various size polymers and their associated additives respond to different methods of removal. It is therefore highly desirable to know which sizes and other components have been used in a given case so that appropriate methods of removal can be formulated. This is not always easy, particularly in commission dyehouses or printworks where sizing has been carried out elsewhere. Analytical procedures are available but these require appropriate facilities and expertise. Once desizing has been carried out there arises the question of how to dispose of the effluent. 

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