Coal ash is left after the coal is fully burned. It has a strong drainage and permeability, but also contains a variety of trace elements, such as iron oxide, magnesium oxide and calcium oxide and so on. After high-temperature combustion, it basically will not have bacteria residues. It can be used to grow more meat, also can be used as fertilizer after ripening.
1. Selection: not all coal ashes can be used. Generally, the cinder left by the factory coal is hard and contains a lot of heavy metals, which is not suitable for use. And the domestic honeycomb briquette is usually treated, sulfur and heavy metal content is reduced, can be used as a substrate or fertilizer
2. Water treatment: coal ash shall be treated by water treatment first. Because it belongs to alkaline substance, it is harmful to the growth of many plants. It can neutralize the pH value by soaking in water. In addition, the bubble water can also remove too fine dust, to avoid causing its air permeability.
3. Full maturity: if you want to make coal ash into fertilizer, you need to maturity. Put it together with animal excrement or straw, and it will be decomposed by high temperature fermentation. This kind of organic fertilizer is generally used as base fertilizer, which can promote the growth of plants.
4. Mixing into basin soil: in addition to being fertilizer, coal ash can also be mixed into basin soil to increase drainage and permeability of matrix. But can't add too much, or it will cause the loss of water and fertilizer, not conducive to its growth
