What are the sources of phosphorous in wastewater?
Fellow Canadian? (I can tell by the "ous" ending!)
Most sources of phosphorous come from household laundry detergents or cleaning products (like dishwashing detergents, etc). If you look on most labels of typical household cleaners, they don't usually list their ingredients. Even the material safety data sheets don't list ALL of the ingredients (instead, they focus on the major hazardous ingredients). But if you do a search for "phosphate free" or "phosphorous free" detergents or cleaners, you'll find a lot of info on just how much phosphorous can be in some of this stuff (one site told me that one bottle of dish detergent holds the same amount of phosphorous as in a bag of fertilizer).
Other sources are industries like production companies that make fertilizers or pesticides (depending on how stringent the discharge limits are in the town or city, different levels of phosphorous can be released to the sewage plant). But the majority of the source of phosphorous for all towns come from the household uses.
Open. The phosphorous enters the system in mineral form (apatite is a type of rock that weathers into available mineral phosphorous) or from animal sources (guano, bone). Water will wash away phosphates which will cause a need for more. The availability of phosphate is a huge limiter in plant growth.
Answ2. Any phosphorous released into the atmosphere or the waterways will quickly make its way to the oceans, where it will be absorbed by animals living there. Our phosphate sources for industry and agriculture come from two sources; rock phosphate made from the bodies of fossil sea creatures; and from Guano, droppings from sea birds, rich in phosphorous because of their marine diet.
This is a course offered where a person undergoes wastewater training for designing and managing wastewater treatment and disposal. On a more detailed manner, he is responsible for the design (engineering) of a system to capture and treat wastewater, whether it is runoff, sewage, etc., so the final product is reuseable or redirected.
Phosphorous is often a limiting factor in environments because plants need phosphorous to maintain their cellular biology. If there is insufficient phosphorous, plants will be stunted or not grow at all. If there is too much phosphorous, plants also have a difficult time or won't grow. Phosphorous uptake is not something that plants can control with certainty, and phosphorous could be a limiting nutrient in a given area under study. Use the link to the…
We can treat wastewater by biological process or by chemical process or by configuring both depending upon the specific cases. In biological process, wastewater purely domestic in origin is generally treated by utilising natural resources like sunlight, air/oxygen, temperature, wind, earth, etc. and microorganisms present in water/wastewater. Whereas in chemical process, various chemicals are used for wastewater treatment depending upon the types and amount of chemical pollutants in the wastewater and the required treated effluent…
if unseeded, BOD = (D1-D2)/P if seeded, BOD = ((D1-D2)-(B1-B2)f)/P D1 = DO of diluted seeded wastewater D2 = DO of wastewater after incubation B1 = DO of diluted seed sample B2 = DO of seed sample after incubation f = ratio of seed volume in seeded wastewater test to seed volume in BOD test on seed P = decimal fraction of wastewater sample used. (vol. of wastewater)/(vol. of dilution water plus wastewater) Maybe that…
It costs 10's of thousands of dollars to connect to the city sewer system (centralized treatment). This is why homeowners use decentralized wastewater treatment which is a septic tank, disposing to a drainfield (wastewater goes back into the ground as opposed to the city treatment facility). The reason is cost obviously.
Wastewater means water which has been spent or wasted in any form of its use. Generally speaking Wastewater indicates a mixture of sewage from lavotories, urinals, etc., sullage from bathrooms, kitchen sinks, roof top run off and untreated industrial effluents. Now a days "wastewater" has become a global terminology instead of earlier term of sewage.