Tag: art and science

The Water

March 14, 2019 at 4:33 pmCategory:General

Also the pollution of air through the use exaggerated of sprinkled that it comes causing the atmospheric pollution, beyond the great amount of oxide of nitrogen, carbon and sulphur proceeding from industrial activities and the vehicles motorized in composition with air, causing the acid rain that damages the ground and the vegetation, that is one of the causers of loss of life of fish. With the creation of animals, most of ammonia produced for esterco animal is set free for atmosphere; another part is converted into soluble nitrates in the ground for the decompositoras bacteria. The nitrates have high mobility (they are soluble in water and the particles of the ground are not leagued), and are one of the pollutant greaters of the underground water. It exists the agrotxicos pollution through metals heavy and products that reach the rivers. Being able all this material to arrive clean and still pure waters. milar findings. Intense the hdrica pollution produces decomposition anaerobic of the human dejections, having, a reduction of the PH of the water and the consequent increase of the solubilizao of metals, extending the risks of toxidez to the water. On the degradation of the environment, it fits to disclose that the development of new technologies brings in its bulge the degradation of the resources, production of material dejections and consumption of energies and other suppliments, modifying in a long distance without end of appropriation of the nature, as it puts down Rattner (1999 and p 109); The global situation is characterized by fast ambient deterioration in global scale, that is, for the effect greenhouse, destruction of the ozone layer, acid rain, deforestation, erosion of the ground and growth of the deserts, loss of innumerable species of plants and animals, toxic contamination of air and the water. 3.1. MEASURES OF PROTECTION FOR THE WATER. The implantation of more severe programs of protection of the hdricos resources in the nature is necessary with urgency, to prevent the greater deterioration in the quality and amount of the resources in water candy of the planet.

RMN Carbons

March 5, 2019 at 4:18 amCategory:General

Both the cited hidrognios are ' ' trocveis' ' in the hydrogen linkings, what it justifies the singletos. In composites that possess the group metoxila, one is verified singleto in d 3,60, referring to the three methylic hidrognios, strong ' ' desblindados' ' for the atom of present oxygen. If the oxygen of this group (metoxila) will be changed by one carbonila (C =), the electron-attractive effect of carbonlico carbon (lesser of what of the oxygen) will contribute for the one sprouting singleto in d 2,00. (This ' ' troca' ' it increased the electronic density on the cited hidrognios, then the chemical displacement diminished). In relation to the Nuclear Magnetic Carbon Resonance (RMN 13C), carbon atoms sp3 absorb in d 0,00 50,00 and carbons sp2 in d 100,00 the 150,00. The specter can be gotten ' ' with or sem' ' hydrogen coupling (1H? prtio). In the first case, methylic carbons (CH3) have its signal unfolded in quarteto, while the metilnicos carbon signal (CH2) is seen as tripleto.

The metnicos carbon atoms (CH) are seen as dubleto and the hidrogenados carbons (c) do not appear with the signal type singleto, in the specter. Carbon atoms 12C do not possess magnetic moment, for in such a way do not produce RMN specters. The RMN specter 13C of the benzene shows one dubleto centered in d 130. In this example, the carbon atoms are mono-hidrogenados (CH, metnicos), what it unfolds the signal in dubleto. As these carbons they are olefnicos (carbons sp2) its signal inside meets of band d 100,00 the 150,00. Carbons of carbonila of ketones appear as singleto in d 200, while of carbonila of aldehydes (group aldoxila) they are identified, in the specter, as dubleto centered in d 190. In esters, carbon atom of the group carbonila (C =) absorbs in d 160-170 ppm. In acid carboxlicos, the carbon of the group carboxila (COOH) absorbs in d 180 ppm.


April 26, 2018 at 3:48 amCategory:General

A selection center is composed basically of units of reception of residues, mats, sheds for storage of the reciclvel material and rejects. In the unit of selection, the employees must separate, manually, the reciclvel parcel reject of it. For this, the laborers must be made use in the two sides of the selection mat, being two responsible ones for the catao of each type of residue. Later, the reciclvel material needs to be made use, in accordance with the type, its respective one continer. FIG.

8 represents an example of selection mat. Figure 8? Mat of selection of the city of Limeira? SPFonte: Google Images, 2010.O I reject must follow for another type of container, so that it is conditioned and destined in accordance with the current law. So that all operation occurs with security, the employees must necessarily be of ownership of the equipment of individual protection? EPI? s (gloves, boots, masks, aprons among others). Is essential the identification of contineres in accordance with the appropriate color to each type of material, as the PICTURE 2.Quadro 2? Separation of the types of materials for corMATERIAL (TYPE) CONTINER (COR) CANS OF ALUMNIOAMARELOMETALAMARELOPAPEL/PAPELOAZULPLSTICO/GARRAFA PETVERMELHOREJEITOCINZAVIDROVERDEFonte: Adapted of material Resolution CONAMA n275/2001.Os you recycle will have to be pressed and made use for posterior sales, that could be commercialized for companies specialized in materials recycle. The exemplifica FIG.9 the packing up of the residues you recycle. Figure 9? Residues you recycle pressed – ASCITOFonte: Authors, 2010.6.1Usina of selection of ItabiritoDe agreement with the studies carried through in the Integrated Project? PIN was verified that Itabirito already possesss a center of segregation of urban solid residues. The selection of the garbage is processed for the Association of Catadores de Materiais recycle of Itabirito? ASCITO.A association has fixed headquarters in the Street Belo Horizonte, 1076? Quarter Village August Jose, Itabirito – cited MG.Conforme already, daily, the center receives the residues that arrive through a truck.

The employees (feminine sex) carry through the selection, in which each type of material is duly separate for continer. After segregated, the material is taken for the only hydraulical press that the association possesss (to see FIG. 10). After the prensamento you recycle, them enfardados follow for sales. Figure 10? Hydraulical press of the ASCITOFonte: Authors, 2010.A local reality is precarious, a time that the employees not they are equipped by the had EPIS? s (gloves, boots, masks, adjusted clothes, protectors of foot