How to Produce Organic Fertilizer from Sludge of Paper Mill

The amount of paper we consume per day is huge, and paper mills produce large amounts of pollutants when producing large quantities of paper. Paper sludge is one of the main secondary pollutants in paper industry. We can make full use of nitrogen, phosphorus and potassium in the sludge by compost fermentation, then make it into compost through the organic fertilizer production line to produce usable organic fertilizer for crop growth.

Paper sludge is a kind of solid waste, which contains a large number of cellulosic organic matter and rich plant nutrients such as nitrogen, phosphorus, potassium, etc. It is a high-quality resource for development and utilization. These paper sludge will pollute the environment and spread pathogens if left alone. Burying these papermaking sludge will cause a large area of land pollution, and the cost of incineration treatment is very high. So it is feasible to make organic fertilizer from paper-making sludge.

Papermaking sludge composting and trough turning machine
In the composting process of paper-making sludge, we use tank fermentation to put paper-making sludge and straw, corncob, mushroom residue and other raw materials into the fermentation tank. In the heating process of aerobic composting fermentation, the trough turning machine must be used to dump manually. The trough turning machine can move along a fixed track in the fermentation tank. It runs smoothly with low cost. The trough turning machine has strong flipping ability and is very suitable for the production and treatment of trough fermentation.
Papermaking sludge compostingtrough turning machine

The decomposed compost is sent to the organic fertilizer production line for compound fertilizer processing. The first step in the process of organic fertilizer production line is to mix ingredients. Humic acid, potassium chloride, urea and other inorganic fertilizers are added to the organic raw materials, and they are compounded into different special fertilizers according to the formula. Then it is crushed, granulated, dried, cooled and packaged. Fertilizer granulator has great influence on granulation. The granules of the organic fertilizer granulator are spherical, and the granulation effect on the raw materials, humic acid and municipal sludge is very good, and it is widely applied in the organic fertilizer production line. The process details of organic fertilizer you can see: Organic fertilizer granulating production line