Pros
As nasty as it sounds, biosolids offer a more cheaper way of doing agriculture since it's recyclable. Production costs are lower when using biosolids and they reduce the need for commercial fertilizers. Also, you might not know it, but biosolids contain a lot of nutrients that's necessary for plants to grow. Some nutrients it includes is nitrogen, phosphorus, copper, iron, and zinc. These also keep the soils nice and fertilized. Since this kind of method would call for the creation of new industry, biosolids technically do create job opportunities. Another pro that it has is the ability to promote farming. People are gonna hear about this cost efficient, recyclable method fertilizing crops, and they're going to be really interested on how using biosolids works.
Cons
Like all good things, there is always a downside to it. Even though using biosolids provides many benefits to agriculture, it is just water mixed with human waste, which obviously inst good to consume if not treated properly. The main problem with using biosolids is that it may cause potential health problems. Anything that can cause problems to someones health shouldn't be considered the best. Now, since this is sewage water, you can't just pour this onto an open field and hope that everything will go right, you actually have to filter the sewage waste first and that method probably involves some use of various chemicals. That right there contributes to the "potential" health problems. If there are houses located near one of these types of farms, the value of that house will no doubt be lowered because nobody wants to live beside a whole field containing millions of people poo and pee. This method produces a foul stench that isn't pleasant.
So those are the pros and cons of using biosolids as fertilizer for agriculture. In my opinion, I don't really agree with it since it's just too disgusting even though its filtered and is more affordable.
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