FEITOSA, Wanderson Barbosa da Silva; http://lattes.cnpq.br/1336389158990388; FEITOSA, Wanderson Barbosa da Silva.
Résumé:
The current work had as objective to realize the quantification and characterization
by physical and chemical methods from sludge of septic tank and from solid home
residues produced by the resident population in “Malhada da Roça” municipal district
of “São João do Cariri/PB”, little community of semi-arid region that uses septic tanks
in their homes. During the project development meetings and workshops were held
with the participation of the community studied, aiming to exchange experience with
regard to the characterization of sludge from septic tanks, solid waste and household
organic farming, co-composting process with a view to disseminating this knowledge
and overcome prejudice against the use of organic manure originated from sewage
sludge. In purpose to contribute and to amplify the knowledge with the community
“Malhada da Roça”, district of “São João do Cariri/PB” were installed and monitored
in two pilot scale co-composting piles: pile one, composting vegetable residues
(legumes and fruit’s barks leftovers), sludge from septic tank and pruned leafs; pile
two, composting manure and sludge from septic tank. The co-composting process of
both piles are efficient in removing helminthes eggs, producing, however, compost
(biossolid) of good sanitary quality that can be used in soil to agriculture conform the
Normative Instructure Nº 25, from 2009, from Agriculture Minister, Cattle Breeding
and Supply (BRAZIL, 2009). To Composting sludge from skeptical tank with
vegetable residues will produce about 11% of bissolids during the composting of
sludge with manure will produce since 50% to 72% of composting with greatest
majority in dust way (82%), thickness of 2mm attending to requisites of legislation
(BRAZIL, 2006).
