Across
- 1. A microrganism that is commonly found in untreated surface water and can be removed by filtration. It is resistant to disinfectants such as chlorine.
- 3. Chains of organic molecules produced by the joining of primary units called monomers.
- 4. A spillover device used to measure or control the amount of water flowing through a treatment process or an aqueduct.
- 7. An insoluble reaction product; in an aqueous chemical reaction, usually a crystalline compound that grows in size to become settleable.
- 8. Periods of time when there isn't any rain or precipitation.
- 10. The name for a well that is drilled into a confined aquifer in which water is under pressure and pushes to the surface without a pump.
- 13. A barrier, usually thin, that permits the passage only of particles up to a certain size or of specific nature.
- 14. A process for killing pathogenic organisms by heat applied for a critical period of time.
- 16. The precipitate that forms on surfaces in contact with water as the result of a physical or chemical change.
- 17. The process of agglomerating coagulated particles into settable flocs, usually of a gelatinous nature.
- 18. Any inorganic or fossilized organic material having a definite chemical composition and structure found in a natural state.
- 19. Physical adhesion of molecules or colloids to the surfaces of solids without chemical reaction.
- 22. When a vapor or gas changes into a liquid.
- 23. A layer of gravel, sand, and limestone, in which water passes through, fills up, and is stored.
Down
- 2. Assimilation of molecules or other substances into the physical structure of a liquid or a solid without chemical reaction.
- 5. A water cycle stage where water turns to gaseous form.
- 6. Type of bacteria found in the intestinal tract of warm blooded animals and used as indicators of pollution if found in water
- 9. A chemical reaction that produces a resulting environment that is neither acidic nor alkaline.
- 11. A device that introduces compressed air into a liquid; used to strip dissolved volatile organic compounds and to facilitate aerobic biodegradation of organic compounds.
- 12. A man-made passageway that carries water from one place to another.
- 15. The process of separating solids from a liquid by means of a porous substance through which only the liquid passes.
- 20. Cylindrical metal or plastic tubes that are used to transport water from one place to another.
- 21. The area of land that drains into a river, lake, stream, bay, or other body of water.