Chemical product life cycle

So what exactly is green chemistry Green chemistry applies fundamental chemical principles to produce chemical products that are inherently less toxic, either to humans or to the ecosystem, than currently existing chemical products. Green chemistry may be applied to any of the various elements of the chemical product life cycle, from manufacture, to use, and ultimately to disposal. Thus, green chemistry may be applied to the production of a particular chanical to minimize the hazard associated with its use, or it may focus on the manufacture of the chemical to minimize the environmental consequences of the by-products or the synthesis, or it may equally well look into the development of more environmentally friendly alternatives to a specific chemical. Regardless, green chemistry seeks to reduce the hazard associated with chemical species. 

The regulation also stipulates that a maximum of three courses of treatment with chemically synthesised allopathic veterinary medical products or antibiotics within one year (or no more than one course of treatment if the productive life cycle is less than one year) is acceptable. These regulations are designed to encourage the use of preventive management and alternative treatments for the control of parasites and diseases. Vaccinations, veterinary medicine treatments for parasites and any compulsory eradication schemes established by Member States are exempt from the treatment maximums, in order to ensure animal welfare. 

Within the broad framework of sustainable development, we should strive to maximize resource efficiency through activities such as energy and nonrenewable resource conservation, risk minimization, pollution prevention, minimization of waste at all stages of a product life-cycle, and the development of products that are durable and can be re-used and recycled. Sustainable chemistry strives to accomplish these ends through the design, manufacture and use of efficient and effective, more environmentally benign chemical products and processes". 

The product type can be commodity or specialty. Commodity products are considered with a defined standard quality, where price is the key buying criterion. The product life cycle for chemical commodities can be relatively long meaning that the products are in the market partly for decades. Examples for short life cycle commodities on the other hand are semiconductors that are also mainly sold over price, but are shortly out-dated due to technology advances. The number of products is medium and does not reach the complexity of specialty product portfolios, where often more than 1,000 products need to be handled by a company. The product customization is standardized with some variants with respect to product properties but not related to a specific customer. Product perishability is... 

So, after 6 years of debate, TSCA was born. This was an important six years. Many of the environmental laws of our country were enacted during the 1960 s and early 70 s. TSCA was to be the "cap" on all of the laws - filling all the gaps that existed between the previous laws. It was also designed to put in place, a law to regulate all chemicals in commerce which may present an unreasonable risk in any part of the chemical s life cycle. Any part of the life cycle can be regulated from R D through production, distribution and disposal. 

Contractors, contract manufacturers, transporters, warehouses, and end users of reactive chemicals should be informed not only of chemical reactivity hazards, but provided information or training on how to control them. This should be done as part of product life-cycle management and Responsible Care/Product Stewardship. Specific issues needing to be addressed may include but probably are not limited to those that are highlighted during the hazard/risk analyses (Section 4.5), including ... 

Reactive chemical process safety Systematic identification, evaluation, and control of reactive hazards at all phases of the production life cycle-from R D to pilot plant, change management, and decommissioning and for all types of operations-from storage or manufacturing to packaging or waste processing. 

Timber can be viewed as a classic renewable material. Trees absorb carbon dioxide and utilize water and sunlight to produce a material that can be used in construction, to produce paper or to provide chemical feedstocks, with the production of oxygen as a byproduct. Furthermore, at the end of a product life cycle, the material constituents can be combusted, or composted to return the chemical constituents to the grand cycles . In essence, timber use represents a classic example of a cyclic materials flow, mimicking the flows of materials through natural cycles. Provided that we manage our forests well and do not harvest beyond the capacity of the planet to provide timber, we have at our disposal an inexhaustible resource available in perpetuity. 

With regard to the location of innovation systems, however, neither the regional nor the national level (national and regional iimovation systems) could be apphed in the SubChem project due to the subject of examination. A branch approach (sectoral innovation systems) was also not an appropriate way to approach the SubChem project. The iimovation systems examined by SubChem are to be found over the entire supply chain from natural raw material supply and chemicals production to disposal and recychng (innovation systems going beyond supply chains and/or product life cycles). 

Owing to its comprehensiveness, LCA is a powerful tool for comparing different options/products with respect to their potential impacts on the environment, and for identifying the critical points within the product life-cycle that contribute most to these impacts [15]. This approach can be used, for example, for comparing a product that includes ENMs with similar products without ENMs. The added benefits of the use of ENMs may be reflected in the differences in the energy consumption for production of materials or products [29, 30], or in the use of scarce resources in the production processes. In other words, LCA may be used to assess the relative environmental performance of nanoproducts in comparison with their conventional equivalents. Thereby, LCA may also quantify the expected positive potentials of nanoproducts for the substitution of hazardous chemicals, the reduction in the use of materials, and energy consumption, in addition to waste reduction. 

In the discussion about how we should set up our chemical process industry in the near future, the sustainability issue is of prime importance. Sustainability in the ecological sense means that we do not place an intolerable load on the ecosphere and that we maintain the natural basis for life. The complexity of the chemical industry with its numerous products has made us lose sight of the associated ecological impact of these products life cycles When you produce something, you also produce long-term effects. In economics, this concept is known as joint production [17], and we will discuss this in Section 13.6. 

Chemical manufacturers, formulators, and distributors must make health, safety, and environmental protection an integral part of the product. Several guides have been created to help develop and implement policies and practices that ensure protection through the product life cycle. One of these, developed by the Epoxy Resin Formulators Group of the Society of Plastics Industry, has been found to be most useful for the epoxy formulator.6... 

Figure 4 is an example of a cradle-to-grave life cycle. Figure 5 shows a further example of a product life cycle for polyvinyl chloride (PVC) manufacture, taken from the chemical industry and this time represented as cradle-to-gate, terminating at the stage where PVC product leaves the gate of the PVC factory for... 

The manufacture of a chemical product within a chemical processing plant is one stage of a product life cycle that includes the entire manufacturing and product assembly chain, as well as the use and disposal phases of the product. It is important to minimize the waste in the entire product life cycle, implying waste... 

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