Paes 414 a

requires free oxygen

Aerobic

consist of liquid waste and slurry resulting from the production of livestock and poultry; and processing of crops, livestock and poultry

Agricultural Liquid Waste

presence of free oxygen is not required

anaerobic

runoff not contaminated with manure such as runoff from roofs, grassed areas, drives and other areas which are not animal alleys

clean runoff

process of killing all pathogenic microorganisms

disinfection

part of total solids passing through the filter in a filtration procedure

dissolved solids

liquid waste, partially or completely treated, flowing out of a reservoir, basin, or wastewater treatment plant

effluent

lagoons that can function as aerobic or anaerobic depending on the environment

facultative lagoons

part of total solids remaining after volatile gases driven off at 600^o C

fixed solids

non-biodegradable component of liquid waste composed of sand, gravel, cinders or other heavy solid materials

grit

storage where liquid waste is stored before final disposal

holding pond

liquid that flows into a containing space

influent

pit in the ground where liquid waste is stored to produce a higher quality effluent

lagoon

system of clay layers and/or geosynthetic membranes used to contain leachate and reduce or prevent contaminant flow to groundwater

liners

rainfall containing animal manure

lot runoff

accumulated moist animal excrement that does not undergo decomposition or drying; it include feces and urine which may be mixed with bedding material, spilled feed or soil

manure

microorganism capable of causing diseases

pathogenic microorganism

treatment that causes substances in liquid waste to readily settle or float

primary treatment

treatment used to convert dissolved or suspended materials into a form more readily separated from the liquid waste being treated

secondary treatment

precipitate resulting from coagulation or sedimentation of liquid waste

sludge

watery mixture of insoluble solid

slurry

solids removed by filtration

suspended solids

residue remaining after water is removed from waste material by evaporation

total solids

part of total solids driven off as volatile gases when heated to 600^o C

volatile solids

quantity of oxygen needed to satisfy biochemical oxidation of organic matter in waste sample in 5 days at 20^o C

5-day Bio-Chemical Oxygen Demand (BOD5 )