why do some people use bioremediation to reduce nitrates in soil/water?  i thought nitrates were good?
823698
too many nitrates is not good, because then you get a ton of algae growth and the algae uses up all of the oxygen causing the other organisms to die\ndont know bout the other question
32036
Nitrogen is released back into the environment via aerobic decomposition.  This process is known as eutrophication.
407580
It depends on how it's used, but common uses of Nitrogen... It's part of a compound in fertilizers, it's used to freeze things, it's used to fill up tires, it's used in cars for more power, those are just a couple, I am sure there are thousands more that I don't know of.
877124
Thats more like it.....(lol i am only joking)\n\nwell you would do that by fractional distillation of liquidified air.\n\nnaturally.....microbes in soil remove nitrogen from air (nitrogen fixation.\n\nIndustrially:.....harber process is used to mimic the naturally occuring nitrogen fixation process....but high temperatures and pressures are required....typically the starting material for harber process is ammonia.....\n\ni hope that helps...(atleast a little?)
599698
Try using a pro-biotic product. The bacteria in the product digests waste. They use this in commercial ponds for cleaning before restocking, and also in oil spills, because it can digest petrol. Ask your local house and garden supplies shop, or if you live near farms ask them.
601562
If there were high nitrate levels... the lake would eventually become a wetland or swamp.  Plants like nitrates... aquatic life does not.  Some lakes are suffering from nitrate run-off (it usually comes from farmers fields or where other types of nitrogen rich fertilizers or substances aren't kept in check)  Those nitrates then in turn generate weed growth.  The weed growth will then choke off the lake.  Ever notice the wierd shade of green in a pond next to houses or apartment complexes.  They're using chemicals to keep the water's P-H on the acidic side to curb vegetation and maintain the proper aesthetics that they want of open water.  If you want further information pertaining to your more immediate area... contact your local county agricultural agent.  He or she should be listed in the white pages under county government.
960635
Geologists and soil engineers will be quick to point out the benefits of wetlands and soil composition as water filters.  While surface water may be contaminated, well water can often be clean - at least for a time.
628459
You're trying to design a medium?  Your question is mighty unclear.  \n\nAnyway, you include toxic compounds for many reasons, the main one is that if you have a particular bacterium engineered to to do a particular function, you design a co-effecting gene that permits the bacterium live in the presence of the toxic compund, and die if it loses the ability to survive in it.  This ensures that if the engineered genes are unstable, both genes are likely to fail, thus any defects or errors in the plasmid or inserted sequence that does your valuable work and allows it to survive in the toxic compounds will kill the bad batches.\n\npH indicators you insert for certain types of bacteria to determine the age (if acid or basic products are developed from the metabolism), resource availability (i.e. if the culture needs to be transferred to new media) and if what you have is contaminated or not (i.e. if you have a sample that's supposed to be always neutral or at a certain pH and suddenly your indicators start going bananas... not good.)\n\nAnd for the rest, you design differential/selective media for the single purpose of making sure your samples are pure and devoid of other species (eliminates the competition) and that if anything goes wrong, that it doesn't go wrong with your whole batch.  \n\nAlways flame your loops :)
1170123
They convert inorganic material to organic ones to make the soil fartile. This is done due to their living and it also helps in living the plants... both way benefecial :)
410044
Well, if the human body were unable to use buffer solutions to neutralize excess acid or base, thereby maintaining a stable pH range, you would die.\n\nNeutralization is also useful for cleanup of spills of hazardous materials.
481463
there are a variety of treatment options depending on the type of pollution. \nboiling is only effective for biological contamination\nmembrane filtration will eliminate heavy metals\nDistillation will remove everything but is very expensive\naeration is effective for volatile organic compounds
549401
Purifying water is far more expensive than that... You should get rid of organic compounds (floating and in solution), kill microbiological creatures... And assure that it won't be harmful for your health after all that, besides taking care of pH, smell, etc.
391415
fr_chuck, get your ass out of questions like this. You are a fucking evangelist and a preacher for cryin' out loud. I don't have to add that you are a neocon. You can't spell for wit (it's university, moron), so don't even attempt to answer questions about things you probably don't even know about it.\n\nTo the original poster, all I can say is that dioxin is used for molecular and cellular biology experiments. If used in laboratory processes, dioxin would be purchased from companies that supply to universities by stock. These chemicals are put into toxin bins and then disposed of properly.
189710
The first answer above makes sense (and is correct), but what's to say they just didn't use better fertilizer?
358327
Nitrates are actually the substance in the nodules on a plant's roots that humans eat and take it the nitrogen because we need nitrogen to grow and change.
1046638
i don't really know about this but i'm fairly sure i can give a better answer than lrisjqoijgjr  \n\nyou could probably use a surfactant to break down the molecular attraction between the water molecules but this would leave pollution through the path of whatever you were using to travel through the water\n\nbut yeah not really practical but better than uingnpds
888184
Because they require very exacting conditions for their disposal.  It's not like you can just throw them in a bag and toss them out.  A lot of times, burning them just creates more toxic material.