@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:142443_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Proceso de remoción de impurezas no deseadas en el agua, incluyendo filtración, cloración, destilación e intercambio iónico. Este puede incluir el tratamiento de aguas residuales para el suministro de agua potable."@es, "Processes to remove undesirable impurities in water including filtration, chlorination, distillation and ion exchange. It may involve treatment of waste water to provide potable water."@en ;
  dc:source "NAL Thesaurus Staff" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:142443
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2011-01-24"^^xsd:date ;
  dc:modified "2019-02-06"^^xsd:date ;
  skos:altLabel "groundwater purification"@en ;
  skos:broader nalt:25345 ;
  skos:closeMatch <http://id.loc.gov/authorities/subjects/sh85145478> ;
  skos:definition nalt:142443_def ;
  skos:exactMatch agrovoc:c_34145, <http://id.agrisemantics.org/gacs/C10639> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:narrower nalt:273722 ;
  skos:prefLabel "water purification"@en, "purificación del agua"@es ;
  skos:related nalt:291919, nalt:290707, nalt:292315, nalt:243848, nalt:17527, nalt:59694 ;
  ns0:marc001 "60247" .

nalt:291919
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "membranas compuestas de capa delgada"@es, "thin film composite membranes"@en ;
  skos:related nalt:142443 .

nalt:273722
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:142443 ;
  skos:prefLabel "desfluoridación"@es, "defluoridation"@en .

nalt:290707
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "moving bed biofilm reactors"@en, "reactores de lecho móvil con biofilm"@es ;
  skos:related nalt:142443 .

nalt:292315
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "sand filters"@en, "filtros de arena"@es ;
  skos:related nalt:142443 .

nalt:243848
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "destilación solar"@es, "solar still"@en ;
  skos:related nalt:142443 .

nalt:17527
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "tratamiento de agua residual"@es, "wastewater treatment"@en ;
  skos:related nalt:142443 .

nalt:25345
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:142443 ;
  skos:prefLabel "tratamiento de aguas"@es, "water treatment"@en .

nalt:59694
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "purification methods"@en, "métodos de purificación"@es ;
  skos:related nalt:142443 .