Search on: SAND FILTERS 
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Descriptor English:   Sand Filters 
Descriptor Spanish:   Filtros de Arena 
Descriptor Portuguese:   Filtros de Areia 
Tree Number:   SP4.021.202.133.709.645.451
SP4.122.006.062.493.774.435
See Related English:   Sand
Slow Filtration
 
Allowable Qualifiers English:  
AE adverse effects AN analysis
CL classification EC economics
ES ethics EH ethnology
HI history LJ legislation & jurisprudence
MT methods PL policies
PC prevention & control SN statistics & numerical data
Record Number:   25206 
Unique Identifier:   DDCS025206 

Occurrence in VHL: 		 

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DeCS