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calorific valueamount of heat released when something is burned (7) |
chemical oxygen demand (COD)amount of oxygen required to chemically oxidise the organic material in an effluent (4) |
cistern-flush toilettoilet with a cistern (tank) containing water used to flush wastes away; requires connection to a piped water supply (5) |
closed questionsquestions with a limited number of possible answers (3) |
combustiblematerials that can be burned (7) |
commercial opportunitiesways in which private sector organisations could provide products or services on a commercial basis for profit (13) |
commercial wastesolid waste produced by the commercial sector (retail, education, banking, government, etc.) (1) |
comminutorsdevices that use blades to shred rags, paper, etc. in wastewater at a treatment works (6) |
community-led total sanitation and hygiene (CLTSH)method for mobilising communities to completely eliminate open defecation by triggering collective behaviour change and installing and using latrines, and encouraging good hygiene practices (13) |
compact (solid waste)to reduce the volume occupied by landfilled waste by drivng a tractor or other heavy vehicle over the waste (10) |
compostsoil-like substance made from decayed organic matter that is used to improve soil (5) |
compostingaerobic treatment of organic waste to produce a useful soil conditioner (8) |
construction and demolition wastesolid waste from the demolition of old buildings, roads, etc., and from the construction of new ones (1) |
controlled landfilllandfill site where measures are taken to reduce environmental pollution (10) |
corrosivestrongly acidic or alkaline substances that can dissolve many materials and destroy living tissue (10) |