Hey there,
this is not a ♥♥♥♥ system for pollution, that is what is happening on earth. There is stuff you just can't do much with and people just store it somewhere, sometimes in a more responsible way, sometimes in a less responsible way.The correct storage would be around at least 35 blocks below surface (not water level) in stockpiles. Stockpiles can be directly next to each other.

Well, we have to disagree on the point of what should be there. Eco is meant to resemble real struggles and while we, as every game, take some creative freedom in approaches for example for the laser, we want to stay realistic and keep to the design goals of eco. Tailings being a nusiance is intended. They are in reallife. 10 stockpiles is nothing. On the big collaborative servers you have hundreds of them. There won't be a way to simply remove stuff or neutralize it if you can't do it in real life. We will offer ways for them to be processed and reused PARTLY in materials according to current research, but there ever will be stuff you simply have to store safely (or not and live with the consequences). Logistics and usage of space are important factors in Eco.There won't be ways in Eco to simply get rid of polluting stuff despite cheating and there will also not be an option to disable it, because it would forefeit the whole point of Eco. You are of course free to mod the game however you like it, though. It's just nothing that you should expect from the base game.Track Belts and stuff are automation which is definately planned, but for a way later date.