RESEARCH OF THE SITE FOR THE FINAL DISPOSAL OF SOLID RESIDUES IN THE CITY OF SAN CRISTOBAL DE LAS CASAS, CHIAPAS
This research project set out to discover the characteristics of the site currently being used for dumping rubbish produced in the city of San Cristobal de las Casas, Chiapas; the conditions under which the dump operates; and how closely said conditions comply with the stipulations laid down in Official Mexican Standard. To estimate the volumes of rubbish at the Municipal Dump, 5 vertical electrical probes were sunk into the underlying matter to assess its depth. Results show that the per capita generation of solid waste is 1.215 Kg; that according to official regulations the dump is classed as Category A; that the rubbish is covered over every 3 months; that the average depth of the residues is in the order of 15 metres, thus being approximately equivalent to 1,050,000 m3 volume and 655 kg/m3 volumetric weight. This means an overall total of 687,434 tons of rubbish has been dumped at the site, and there was found to be no control whatsoever over the leachates and biogas this waste matter generates. The fauna consists mainly of colonies of stray dogs, rats and flies; the local flora is mainly Pinus sp., Quercus sp. and Crataegus sp., with very few bushes, and none of the species is in danger of extinction. This study still recommends the taking of measures necessary to prevent further damage to the local environment, and the permanent closing of the dump.Key words: damage, environment, final disposal, standards, solid residues.
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| Format: | Digital revista |
| Language: | spa |
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Instituto de Ingeniería, Universidad Nacional Autónoma de México
2012
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| Online Access: | https://www.revistas.unam.mx/index.php/aidis/article/view/07 |
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| Summary: | This research project set out to discover the characteristics of the site currently being used for dumping rubbish produced in the city of San Cristobal de las Casas, Chiapas; the conditions under which the dump operates; and how closely said conditions comply with the stipulations laid down in Official Mexican Standard. To estimate the volumes of rubbish at the Municipal Dump, 5 vertical electrical probes were sunk into the underlying matter to assess its depth. Results show that the per capita generation of solid waste is 1.215 Kg; that according to official regulations the dump is classed as Category A; that the rubbish is covered over every 3 months; that the average depth of the residues is in the order of 15 metres, thus being approximately equivalent to 1,050,000 m3 volume and 655 kg/m3 volumetric weight. This means an overall total of 687,434 tons of rubbish has been dumped at the site, and there was found to be no control whatsoever over the leachates and biogas this waste matter generates. The fauna consists mainly of colonies of stray dogs, rats and flies; the local flora is mainly Pinus sp., Quercus sp. and Crataegus sp., with very few bushes, and none of the species is in danger of extinction. This study still recommends the taking of measures necessary to prevent further damage to the local environment, and the permanent closing of the dump.Key words: damage, environment, final disposal, standards, solid residues. |
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