Waste Analysis Plan
Waste Water
A waste containing less than 1% (10,000 PPM) by weight TOC or less than 1% (10,000 PPM) Total Suspended Solids (TSS).
Waste Water Treatment (Primary)
Use of screening and sedimentation (settling) to remove floating or settleable solids from waste water. Primary treatment includes the use of screening & grit removal, oil separation, floatation and sedimentation.
Waste Water Treatment (Secondary)
The second step in waste water treatment uses bacteria to consume organic and inorganic pollutants. Examples are trickling filters, activated sludge, extended aeration, facultative lagoons, anaerobic lagoons, aerated lagoons, stabilization ponds, etc.
Waste Water Treatment (Tertiary)
The final stage in waste water treatment (following biological treatment). Examples are reverse osmosis, activated carbon filtration and ultra filtration microstraining. These polishing or purification processes are used in preparation for possible reuse of water.
Watershed
The areas that drain to surface waterbodies. A watershed generally includes lakes, rivers, estuaries, wetlands, streams and the surrounding landscape.
WET
Whole Effluent Toxicity (CWA: 40 CFR 136.3). WET are laboratory experiments that measure the aquatic toxicity, i.e., the biological effect (e.g., growth, survival and reproduction) of effluents or receiving waters on aquatic organisms. In aquatic toxicity tests, groups of organisms of a particular species are held in test chambers and exposed to different concentrations of an aqueous test sample. Observations are made at predetermined exposure periods. At the end of the test, the responses of test organisms are used to estimate the effects of the toxicant or effluent.
WMNP
Waste Minimization National Plan
WQA
Water Quality Act
WQC
Water Quality Criteria
WRTK
Worker Right To Know
WWF
World Wildlife Federation
WWT
Wastewater Treatment
WWTP
Wastewater Treatment Plan
W/WW
Water/Wastewater