Cayenne GTS (9PA) V8-4.8L (2008)
Treatment of waste water, e.g. with precipitants (See: Precipitation procedure), such as aluminum, iron or calcium salts, which in waste water form
hydroxide flocs or poorly soluble compounds. Dissolved or finely dispersed waste water constituents are thereby converted into a separable form and can
then be extracted from the water by means of sedimentation, flotation or filtration. This method removes a lot of substances (e.g. phosphates, heavy
metals, non-degradable or sparingly degradable organic substances) which cannot be separated entirely or adequately by conventional treatment methods
(mechanical and biological purification). Because biologically degradable compounds are also removed by precipitation, this method now enjoys special
status in Sweden, Switzerland and partly in Germany, where it is used to relieve overloaded sewage treatment facilities. Another method of chemical
waste water treatment is Oxidation of water impurities by hydrogen peroxide.
Chemicals Act
ChemG (full name: "Law on Protection against Hazardous Substances") is of fundamental importance for the chemical industry. It requires that all new
substances be tested for toxicological and ecotoxicological properties (See: Toxicology) in accordance with a defined staged plan and also that they be
registered before being marketed. Essentially, this law is based on EC Directives, which must also be implemented similarly in the other member states.
The ChemG also forms the basis for the Hazardous substance regulations and the Prohibition of Chemicals Ordinance.
Chlorinated hydrocarbons
Abbreviation: CHC. Chlorine-containing organic compounds, which also contain agents from pesticides and plant protection agents and from numerous
technical solvents from other areas.
Chromates
Salts of chromic acid HCrO4 are derived from chromium trioxide CrO3. Were used as corrosion preventives (pigments). Zinc chromate, calcium
chromate, chromium (III) chromate are classified as carcinogenic substances.
Cleaning agent
Preparations made of tensides, softening agents, solvents, etc. for household purposes (kitchen, bath, kitchenware), industrial cleaning purposes (car,
engine) and cleaning in the food industry (e.g. drink bottles). Used in the paints industry to clean surfaces before painting or for cleaning stubborn stains
from painted surfaces (paint cleaner).
Cleaning stages
Mechanical, biological, chemical and physio-chemical cleansing of Waste water.
Climate
The average condition of meteorological phenomena determined by climate factors and climate elements, cosmic influences and their interrelations over
a longer period of time as opposed to weather. Regional allocation of climate types produces various different climate zones, which themselves can be
subdivided into climate provinces. Depending on the size of the observed area, distinction is made between:
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Macro climate: the actual climate used to determine the climate zones
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Micro climate: the climate of the smallest spaces, determined by the layer of air closest to the earth
Climate changes
Climate changes taking place in geological periods of time. These can be limited to certain regions (e.g. as a result of changed distribution of land and
water) or global (e.g. resulting from cosmic influences). Whether CO2 emissions and accumulation in the upper atmosphere and emissions of dust affect
the global incoming and outgoing radiation ratio, thereby leading to climate changes, is disputed.
Closed Substance Cycle & Waste Management Act
This act, which was ratified on October 7, 1996, replaces the Waste Management Act of 1986. The body of rules underlying the Closed Substance Cycle
& Waste Management Act consists of seven decrees and one guideline.
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Decree pertaining to introduction of the European Waste Catalog (EWC)
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Decree pertaining to specification of waste that requires special monitoring.
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Decree pertaining to specification of recycling waste that requires monitoring
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Decree pertaining to provision of proof
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Decree pertaining to transportation authorization
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Decree pertaining to waste management concepts and waste balance sheets
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Decree pertaining to specialized disposal companies
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Guideline pertaining to the activity and recognition of disposal associations
Coagulation