Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Environmental footprint

Wliile some problems still exist, there is no question that coal mining operations are more efficient and safer for workers and leave less of an environmental footprint than operations several generations ago. As society s demand for energy from coal continues to increase and as coal s price declines (between 1978 and 1996 U.S. mine mouth prices fell from 47,118 to 18..S11 per ton in constant 1996 dollars), there is certain to be even gi eater efforts to limit the environmental impact of mining operations. [Pg.262]

Applying the techniques that have worked so well in commodity chemicals to the higher value sectors will reduce environmental impact and improve the economics, but the gains wiU be smaller. In particular, the economic benefits may not justify the investment in improvement. Further reduction in environmental footprint will require a new way of looking at the problem. [Pg.41]

For every other industry one can produce a list of unmet demands for products that will help reduce environmental footprint. We can no longer focus on fixing the problems we think we own. The opportunity is in fixing other people s problems. [Pg.43]

Phytic acid (inisitol hexakisphosphate) is the main storage form of phosphorus in plants. The phosphorus is not bioavailable to non-ruminants as they lack the enzymes to break it down. Novozyme has developed a commercial enzyme, phytase, that can be added to animal feed to release the phosphorus. No inorganic phosphorus needs to be added. This shift in the source of phosphorous has a large impact on the environmental footprint of pig farming. [Pg.52]

Urban agriculture Local agriculture Food security Lower prices Less environmental footprint Less transportation Local production and use Mitigates climate change Recycles wastes Provides employment De Bon et al. (2009) Miah and Hussein (2009)... [Pg.11]

The emphasis placed on environmental concerns led to the concept of ecopharma-costewardship that relates to the environmental activities being pursued by the research pharmaceutical companies to minimize the pharmaceuticals environmental footprint and produce a new generation of green and sustainable products [129]. [Pg.233]

Lillywhite, R. (2008) The environmental footprint a method to determine the environmental impact of agricultural production. Aspects Appl Biol, 86, 1-8. [Pg.449]

The conversion of this enormous natural chemical potential to the actual products we want requires chemical technologies and if we are to keep the overall environmental footprint low and build on the head start afforded by renewable feedstocks, these need to be green chemical technologies. Fran Kerton reviews these in Chapter 3. Apart from the tools of biotechnology, some of the key technologies are likely to be alternative solvents - for extraction of valuable plant chemicals and for chemical processing alternative activation methods including microwaves (so... [Pg.197]

The concept of life-cycle thinking and the use of LCA can help provide a thorough picture of the environmental footprint for given decisions. Life-cycle thinking considers the cradle-to-grave implication of an action, and some of the benefits include the following ... [Pg.698]

Nonetheless, a (partial) switch to renewables is desirable for other reasons, such as biocompatibility, biodegradability and lower toxicity, i.e. renewable raw materials leave a smaller environmental footprint [3]. That the chemical industry has been slow to make the transition, in the three decades following the Report of the Club of Rome, is a consequence of the fact that oil and natural gas are excellent basic feedstocks and highly atom efficient, low waste, catalytic procedures are available for their conversion into commodity chemicals. The same cannot be said for the fine chemicals industry where processes are, generally speaking, much less efficient in many respects and there is considerable room for improvement. [Pg.329]

The need for novel catalytic processes is clear and, as discussed in Chapter 9, combining catalytic steps into cascade processes, thus obviating the need for isolation of intermediate products, results in a further optimization of both the economics and the environmental footprint of the process. In vivo this amounts to metabolic pathway engineering [20] of the host microorganism (see Chapter 8) and in vitro it constitutes a combination of chemo- and/or biocatalytic steps in series and is referred to as cascade catalysis (see Chapter 9). Metabolic engineering involves, by necessity, renewable raw materials and is a vital component of the future development of renewable feedstocks for fuels and chemicals. [Pg.413]

Increased environmental footprint as emerging economies develop... [Pg.141]

Sustainable growth - to create shareholder and societal value while decreasing the environmental footprint along the value chains in which DuPont operates. [Pg.394]

Perhaps the best example of this is the widespread use of a metric that relates value and environmental footprint, best known as shareholder value added per pound of material produced (a suitable proxy for environmental footprint in many bulk chemical businesses).29 Perhaps the most powerful aspect of DuPont s use of this metric is the range of applications to which it has applied the metric. These include ... [Pg.448]

Measuring overall progress at producing more value per unit of environmental footprint over time in a particular business and across the company ... [Pg.448]

The on-the-ground impact of the use of this metric has been to drive the idea and practice that many production processes can be improved to reduce environmental impact while improving profitability. A great deal of the value DuPont has created through environmental insight has been by profitably reducing the negative environmental footprint. [Pg.448]

While profitably reducing environmental footprint has become a systematic source of value, DuPont has achieved less success applying the concept of sustainable growth to the innovation and new product development processes. DuPont does have examples of new products for which a major portion of the customer value results from the elimination of environmental problems for the customer. Examples of this include ... [Pg.448]

Molecular chlorine, CI2, is an ideal chemical for delignification as it is cost-efficient and has reasonable selectivity, well capable of removing 75-90% of the residual lignin in a single stage. However its undesirable effects - waste water with chlorides that is corrosive, and a tiny by-product of chlorinated organic compounds -means that molecular chlorine has been abandoned entirely in some countries and where it is still used this is often in conjunction with chlorine dioxide (D) whose environmental footprint is some 2.6 times smaller. Today, more than 75% of pulps are bleached without any molecular chlorine. These are described as elemental chlorine-free (ECF). Only c. 6% of bleached pulps are total chlorine-free (TCF),... [Pg.515]

While not strictly EPIs, to assist with the comparison of companies the ranking based on turnover is given in the header at the beginning of the analysis sheet. Turnover is considered to be the best overall measure of the magnitude of the company and in turn is related to its environmental footprint. [Pg.112]

Environmental footprint = injuries, illnesses, incidents, waste emissions, and depletable forms of raw materials and energy... [Pg.97]


See other pages where Environmental footprint is mentioned: [Pg.912]    [Pg.19]    [Pg.2]    [Pg.235]    [Pg.166]    [Pg.132]    [Pg.5]    [Pg.5]    [Pg.73]    [Pg.178]    [Pg.806]    [Pg.2]    [Pg.16]    [Pg.18]    [Pg.198]    [Pg.696]    [Pg.4]    [Pg.129]    [Pg.168]    [Pg.308]    [Pg.393]    [Pg.433]    [Pg.438]    [Pg.2094]    [Pg.7]    [Pg.114]    [Pg.54]    [Pg.97]   
See also in sourсe #XX -- [ Pg.329 ]

See also in sourсe #XX -- [ Pg.7 ]

See also in sourсe #XX -- [ Pg.212 , Pg.213 ]

See also in sourсe #XX -- [ Pg.46 , Pg.49 , Pg.127 , Pg.139 , Pg.233 , Pg.273 ]

See also in sourсe #XX -- [ Pg.39 ]




SEARCH



Cradle to Gate Environmental Footprint and Life Cycle Assessment of Poly(lactic acid)

Ecological footprint environmental evaluation

Environmental footprint feedstock

Environmental footprint poly

Footprinting

Product environmental footprint

Recycling environmental footprint

The Environmental Footprint of Plastics

© 2024 chempedia.info