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Water Resources

Compendex Help

The Compendex database indexes the engineering literature including journals, trade magazines, conference proceedings, books, standards, and theses.

Boolean Operators

Use the Boolean operators below to combine search terms.You may use more than one Boolean operator in the same search. Just remember to enclose each Boolean phrase in parentheses. Below are some examples. 

Boolean operator Example
OR constructed OR artificial
AND (constructed OR artificial) AND wetlands
NOT greenhouse NOT "greenhouse effect"

Proximity Operators

Use proximity operators to find phrases and words in close proximity to one another. Quotation marks can be used to retrieve words in a specific order. THe NEAR operator will retrieve words in any order. You can specify the number of words in between your terms by adding a forward slash and number. For example, NEAR/2 will retrieve terms within two words of each other.

Proximity operator Example
" " "green roof"
NEAR runoff NEAR/2 water


Ei Controlled Vocabulary Terms

Articles indexed in Compendex are assigned one or more controlled vocabulary terms from the Ei Thesaurus. Below are selected examples of water-related controlled vocabulary terms. You can use these terms in your initial search or to filter your keyword search results. Use the Thesaurus search to explore more terms.

  • Wastewater reclamation
    • Water
    • Groundwater
    • Wastewater
    • Water quality
  • Water management
    • Water treatment
      • Biological water treatment
      • Chemical water treatment
      • Chemicals removal (water treatment)
      • Wastewater treatment
  • Water quality
  • Water recycling
  • Water resources
    • Surface waters
      • Lakes
      • Ponds
      • Rivers
      • Runoff
  • Water treatment plants
  • Wetlands

Ei Classification Codes

Articles indexed in Compendex are also assigned Ei classification codes representing broad topic areas. Codes for water related topics include the following.

  • 444 Water Resources
    • 444.1 Surface Water
    • 444.2 Groundwater
  • 445 Water Treatment
    • 445.1 Water Treatment Techniques
    • 445.2 Water Analysis
  • 446 Waterworks
    • 446.1 Water Supply Systems
    • 446.2 Related Hydraulic Structures
  • 453 Water Pollution
    • 453.1 Water Pollution Sources
    • 453.2: Water Pollution Control