Search on: SEPTIC TANKS 
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Descriptor English:   Septic Tanks 
Descriptor Spanish:   Tanques Sépticos 
Descriptor Portuguese:   Tanques Sépticos 
Synonyms English:   Septic Chambers  
Tree Number:   SP4.026.307.828
Definition English:   A sedimentation and digestion unit, generally closed with horizontal and continuos flow; its velocity and retention time must allow the sedimentation of suspended matter on the bottom where they are kept and transformed into mineralized, liquid or gaseous substances by anaerobic decomposition. 
See Related English:   Anaerobic Digestion
Digesters
Imhoff Tanks
Percolation
 
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:   25558 

Occurrence in VHL:
 

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