<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>3441</termId><termName>PURIFICACION DEL AGUA</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>PURIFICACION DEL AGUA</termSortkey><termNote label="Cota LC"><![CDATA[ <p><a href="http://www.loc.gov/aba/publications/FreeLCC/T-text.pdf" target="_blank">[TD430-TD477]</a></p> ]]></termNote><termCreatedDate>PURIFICACION DEL AGUA</termCreatedDate><termModifiedDate>2015-02-03 06:16:46</termModifiedDate><relation><relationType>UF</relationType><termId>6113</termId><termName>Agua--Purificación</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>6114</termId><termName>Tratamiento del agua</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>302</termId><termName>ABASTECIMIENTO DE AGUA</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>2654</termId><termName>ABASTECIMIENTO DE AGUA INDUSTRIAL</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>3541</termId><termName>AIRE</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>305</termId><termName>CONTROL DE CALIDAD DEL AGUA</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>6103</termId><termName>DESCONTAMINACION (DE GASES, SUSTANCIAS QUIMICAS, ETC)</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>6104</termId><termName>RESERVAS DE ALIMENTOS</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>300</termId><termName>REUTILIZACION DEL AGUA</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>2747</termId><termName>SANEAMIENTO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>313</termId><termName>AGUAS RESIDUALES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>65922</termId><termName>AUTOPURIFICACION DE CORRIENTES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6106</termId><termName>CONVERSION DE AGUAS SALINAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6107</termId><termName>FILTROS DE AIRE</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6108</termId><termName>HIPOCLORINADORES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6109</termId><termName>INGENIERIA DE ABASTECIMIENTO DE AGUA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>16039</termId><termName>PLANTA DE ABASTECIMIENTO DE AGUAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6111</termId><termName>PURIFICACION DEL AGUA PARA EL CONSUMO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6112</termId><termName>SEPARADORES DE ACEITE</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>6115</termId><termName>FLUORURACION</termName><termType>PT</termType></relation></term>  </Zthes>