System for preparing carbon-based fertilizer through micro-polluted water source water treatment

The utility model discloses a system for preparing a carbon-based fertilizer through water treatment of a micro-polluted water source. The device consists of a biochar adsorption device, a first filter, an ozone reactor, an activated carbon adsorption device, a second filter and a carbon-based fertilizer production device, wherein a discharge port of the biochar adsorption device is connected witha feed port of the first filter, a water outlet of the first filter is sequentially connected with the ozone reactor, the activated carbon adsorption device and the second filter, and a discharge port of the first filter is connected with the carbon-based fertilizer production device; first filter is a filter structure, the structure of the filter is as follows: the filter is cylindrical; filtercloth is arranged in the filter sleeve; the filter cloth is cylindrical; the axis of the filter cloth is parallel to or coincides with the axis of the filter sleeve; a space is formed between the filter cloth and the filter sl