Across
- 3. A buildup of particulates on or within a filter, preventing fluid flow through the filter at normal pressures.
- 7. Flow coefficient
- 8. Wastewater or water flows that are often treated separately then fed into the main process;
- 9. Type of filter where wastewater flows over media and enables the formation of slimes or biomass, which contain organisms that feed upon and remove wastes from the water being treated.
- 11. The process of removing minerals from water, usually through
- 14. A chemical produced by living cells having the ability to reduce large organic molecules to units small enough to diffuse through the cell membrane.
- 15. A term applied to a dewatered residue from a filter, centrifuge or other dewatering device.
- 16. A deposit or precipitate of magnesium ammonium phosphate hexahydrate found in digested sludge lines, valves, centrifuges and centrate discharge lines
- 18. The name of the table that arranges the elements in order of increasing atomic number that illustrates the repetition (or periodicity) of the key characteristics.
- 19. The liquid overlying the sludge layer in a sedimentation vessel
- 20. A quarter-turn manual valve that uses a cylindrical or tapered plug to permit or prevent straight through flow through the body.
- 22. A unit of length indicated by the symbol A.
- 23. A test procedure where a chemical solution of known strength is added drop-by-drop until a certain color change, precipitate or pH change in the sample is observed (end point).
- 24. A mechanical treatment process that cuts large pieces of waste into smaller pieces so they will not plug pipes or damage equipment.
- 25. Water treatment equipment that uses a sodium-based ion exchange resin principally to remove calcium and magnesium cations.
- 26. A spillover device used to measure or control water flow.
Down
- 1. A type of valve that is a linear-motion valve characterized by a round style body with a long face-to-face dimension.
- 2. The movement of water into and through a soil and into underground infrastructure.
- 4. To separate water from sludge to produce a cake that can be handled as a solid
- 5. A property of water, or any other fluid, that resists efforts to change its shape or flow. Some fluids are rated by how thick it is.
- 6. reverse osmosis or distillation.
- 10. The membrane output stream that contains water rejected by the membrane.
- 12. Dialysis conducted with the aid of an electromotive force applied to electrodes adjacent to both sides of the membrane.
- 13. Any of several derivatives of methane in which three halogen atoms (chlorine, bromine or iodine) are substituted for three hydrogen atoms.
- 17. Any process that upgrades treated wastewater to meet specific reuse requirements. Also called advanced waste treatment.
- 20. The proportion of the total volume of material that consists of pore space or voids, usually stated as a percentage.
- 21. A device for measuring fluid flow, including a short converging cone succeeded on the same axis by a long diverging cone.