The process is very expensive in the second stage.
Water that has undergone only secondary treatment is pumped into an adjoining pond or system of ponds that still have pollutants in them.
A lot of work is being done.
It is difficult to design secondary treatment plants in which the effluent can be used for irrigation.
The ammonification of the Interactive Microbiology liberates Ammonia.
nitrifyingbacteria oxidize ammonia to produce nitrates for energy.
The nitrogen in nitrates is reduced by Denitrifyingbacteria.
Ammonium and nitrate are used by plants.
S0 or SO 22 4 are formed by the oxidation of sulfur.
The mycorrhizae live on plant roots and increase the surface area of the plant.
Plants and other organisms can reduce SO 22 4.
Animals use these amino acids.
H2S is released by decay.
Some chemical elements are recycled.
There is a substance found in birds and rocks.
The continuation of biogeochemical cycles depends onMicrobes.
Plants and microorganisms oxidize and reduce elements.
Pesticides are resistant to photo autotrophs and chemo autotrophs.
Heterotrophs is the term for the use of microorganisms to remove polutants.
Methane produced by methanogens can be fuels.
Drinking water is held in a holding tank for a long time.
Micro organisms and their activities in natural waters are studied.
protozoan cysts and other organisms are removed from the water.
Chlorine is used to kill remaining oceans.
The majority of aquaticbacteria grow on surfaces rather than in toilet waste.
In primary treatment, biological activity is not very important.
The limnetic zone is where the primary producers of a lake are found.
The biological oxygen demand is a measure of the organic matter in the water.
The primary treatment removes most of the sewage.
The death of fish and the amount of oxygen in the air are the two main factors used to determine BOD.
Secondary sewage treatment contains light and H organic matter after the primary treatment.
The benthic zone has methane- producingbacteria.
The organic matter degrades.
The open ocean is the primary producer of Phytoplankton.
Up to 85% of the BOD can be removed with secondary treatment.
Some organisms are bioluminescent.
The sludge is placed in a digester which can emit light.
The methane produced in the digester is used to heat the digester.
Excess sludge is removed from the water.
The primary aquatic food chain can be provided by the use of sewage tanks.
Small communities can use oxidation ponds.
An artificial lake requires a large area.
Coliforms are aerobic or facultatively anaerobic, gram-negative, non- precipitation to remove all the BOD, nitrogen, and phosphorus endospore-forming rods that ferment lactose with the production of from water.
The koala eats leaves.
The by-product of this metabolism is the water used to prepare IV solutions.