Make extra money by dumping industrial waste on you land
 

Where I work they produce a fatty watery by product called slops that can't go into the waste water ponds.
The factory produces 300,000lb of this gunk per week normally. They have to pay almost $1,000 to get rid of it.
It's used as fertilizer.
I figure with tanks on my 10k trailer I can make $30 to 35 per trip.

What is the by-product from? A lot of things can be harmful to the environment if it isn't decomposed enough.

Milk and cheese production.
The truck driver that takes it dumps it on a field 6,000 gallons at a time.

From the little bit of research, it looks like you could eventually have issues with phosphorus build up from the detergents. If I were in your shoes, this is what I would do:
Note: I would not dump anywhere near a stream, creek, or heavy drainage location that would allow the slop to flow into bigger streams. If the slop will be able to sit and fallow without any chance of flowing into a stream or creek, go for it.
1) I would first get my soil professionally tested by a lab to get a baseline.
2) Get a weekly load for an entire month and dump in roughly the same area on the land.
3) Wait for at least two months for the slop to decompose. Get the soil professionally tested again.
4) If the soil results came back reasonable, I would proceed and imaginary divide my land into at least 4 paddocks. I would dump in the same paddock for an entire month, than move to a new paddock (basically like moving livestock) to dump in. That would give the first paddock ~3 months to return back to normal.
5) I would do this for about a year, than get the soil tested again. If the numbers are still ok, proceed again.

Really, it is all about monitoring the actual environmental impact of what you are doing. If things go out of wack, slow down and let the soil normalize.

There are no detergents.
The only chemical used there with phosphorus is the acid sanitizer and there isn't any reason it would be in the slops. Spent acid sanitizer goes to waste water.

The nearest stream is miles away.

You are performing a good job I think this fertilizer is soil friendly and increase the fertility of soil

Are you doing it? How did it work out?

Still in the planning stages.
I still need tanks for my 10k trailer.

How about make a powdered fertilizer , compost it dry it have it analyzed and label it as a recycled natural fertilizer Super *plant booster*

It sounds safe being its dumped on open fields as it is.

So dumping into lined evaporation ponds to be fermented dried swept off for processing / packaging.

*All NEW Magic milk plant booster*

I think it's a very bad idea. Do you know anything about the land where you want to dump that stuff? What if there's an underground water reservoir or underground water flow? Which is very likely...Then all that stuff will end up in your drinking water sooner or later.

You are basically putting all the area at risk of contamination. If I were you, I wouldn't even think about it.