Some methods for
energizing and breaking molecular bonds tend to be costly than others. Technical designs and modes of operation which will effectively recovery resources by homogenous waste types might not be sufficiently robust for hugely heterogeneous feedstock. Technical features become important, defining "envelopes" of design and operation according to the input, and this intended end-product.
Permitting systems guide proper usage, and implement restrictions
on use of a different tool for the job available. These checks on the market forces have to be constructed only where optimisation for cleanliness and percent recovery trumps the root economics.
As the molecular diversity with the feedstock increases, the character of bonds requiring deconstruction in addition varies. Some of the best toxic residuals are also by far the most difficult to devolve; to maximise environmental cleanliness, the
process must be optimized that will effectively reduce these most reticent fractions for their non-toxic constituents.
Environmental concern must drive
Technology design and functioning toward both maximum restoration of resources AND optimum reduction of toxicity; these responses to appropriate environment concern become performance models.
Many of the technologies readily available for conversion of waste into recoverable resources were around for half a century or maybe more. Our industrial ability to style, operate, monitor and modify the task "on the fly" is just now able to
meet our modern and also ever-tightening standards of geographical cleanliness.