Предмет: Другие предметы, автор: hadhat7

какие органы устраняют различные отходы

Ответы

Автор ответа: nikitaKrenta2000

анальное отверстие, мочевой пузырь, кожа

Автор ответа: GreatTV

печень
аппендицит
это все вроде

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Text 16C Issues in soil remediation

Multifunctionality has proven very difficult to achieve in practice. About 50 per cent of the clean-upsoil does not meet the multifunctionaluity target and has to be used under additional constraints.
Achieving miltifunctionality may be hampered by the cost of the operations and by technical and feasibility constraints. Technology for soil remediation is developing very quickly with a shift from radical, hard solutions (such as excavate-pump-and-treat) to biological techniques which, for instance, exploit natural attenuation phenomena. However, the costs issues are still a mayor constraint to soil remediation. High costs have become both politically indefensible, and economically unfeasible. Facing sheer expenditures, companies have often applied await-and-seeattitude, delaying the operations as much as possible often exploiting the ambiguities of the guideline and the possibility of some discretionary interpretation of the law. The main issue raised by the private sector is that the multifunctionality objective systematically disregards efficiency and effectiveness considerations. Most companies do know what the future use of contaminated sites will be, and thus question the general principle that all sites should becleaned-upto the same extent. An industrial area may need less strict measures than a residential one. In addition, the application of soft, but long, remediation techniques may significantly cut costs, although
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may delay the soil usage and leave many sites polluted for a considerable time.
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2.A regional or even global concern, related to the need of minimizing the use of scarce resources during the operations and the spread and transfer of pollution to other environments. These factors are the negative side of the remediation and cannot be disregarded in computing the full environmental balance of remediation.

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