Wastewater management Flashcards
Provide guidelines for classifying water bodies in the country, determine time trends, evaluate the stages of deterioration or enhancement in water quality, evaluate the need for taking actions in preventing, controlling, or abating water pollution.
DENR Administrative Order 2016-08
DAO 2016-08 covers the discussion and specification of WQG and GES
Water Quality Guidelines and General Effluent Standards
Are the required minimum water quality parameters to be monitored for each water body.
Primary parameters
Are other water quality parameters to be used in baseline assessment as part of the Environmental Impact Assessment and other water quality monitoring purposes
Secondary parameters
Effluent quality parameters for manufacturing: rice/corn milling
BOD and TSS
The 2021 amendment partially amends the DAO by raising the standard values for six parameters
NH3-N
Boron
Copper
Fecal coliform
Phosphorus
Sulfate
NDA means
No discharge allowed
It is the wastewater discharged from residences and from commercial, institutional, and public facilities. It is also known as sanitary wastewater.
Domestic Wastewater
It is the wastewater where industrial wastes predominate.
Industrial Wastewater
Is extraneous water that enters the collection system through leaking joints, cracks, and breaks.
Infiltration
Is stormwater that enters the collection system from storm drain connections (catch basins, roof leaders, foundation and basement drain, or through access port (manhole covers).
Inflow
It is the runoff from rainfall and snowmelt.
Stormwater
Physical Characteristics of Wastewater
Odor
Color/appearance
Temperature
Weight
BOD5 is measured in a water sample during ___ days of incubation at ___˚C.
5; 20
In general, the COD of a waste will be ____ BOD
greater than
It is the measure of the total organic and ammonia nitrogen in wastewater.
Total Kjeldahl Nitrogen
These are the forms of phosphorus in wastewater. These include orthophosphates, polyphosphates, and organic phosphate.
Total Phosphorus
These are streams that are unintentionally contaminated due to unplanned activities such as chemical leaks, spills, or other accidents that involve hazardous materials.
Accidentally contaminated
It may still be contaminated as it flows over different surfaces such as rooftops, fields, and roads, contaminating it with pollutants such as oils, sediments, heavy metals, or bacteria.
Clean Rainwater
These streams receive wastes from agricultural activities, stormwater, or industrial discharge.
Continuously contaminated
This originates from domestic sources such as sinks, toilets, and showers.
Sanitary wastewater
Collection system where wastewater flow is composed of domestic wastewater, industrial wastewater, and infiltration/inflow.
Sanitary Wastewater Collection Systems
Collection system where wastewater flow is composed of domestic wastewater, industrial wastewater, and infiltration/inflow, together with stormwater and constituents found in stormwater.
Combined Wastewater and Stormwater Collection Systems
Collection system where varying amounts of wastewater may be present in the stormwater, depending on local conditions.
Stormwater Collection Systems