Method for preparing sullage fertilizer

Abstract

The present invention relates to a production method of a sludge fertilizer. In the method, the collected sludge, straw of crops and wormwood are covered and piled together orderly, repeatedly and uniformly; the sludge is used for covering for 21 days until the inner temperature reaches to 25 to 40 DEG C; the mixture is naturally fermented; after being mixed well, the mixture is piled again and is enclosed by the sludge for 21 days for sedimentation and slaking; and the sludge fertilizer can be prepared after the mixture is turned over. In the method, the harmful sludge is adopted to product helpful fertilizer, thus changing the waste into valuable materials and solving the problem of environmental pollution caused by the sludge. The application of the straw of crops in the field facilitates the improvement of the ecological environment of the crops and the realization of development of sustainable and renewable energy. The wormwood, which is used as the fertilizer, has excellent quality of the fertilizer and is high-quality raw material that is used for preparing fertilizers in the northern part of China. The application of the wormwood is in particular suitable for the field that has been fertilized for a plurality of years. The method requires no power equipment or capital investment, and has the advantages of low cost and no pollution. Thus the method is a production method that can be used for preparing fertilizers of original ecology in the natural ecological environment, according to the lunar solar terms and the difference in various areas.

Description

technical field [0001] The invention relates to a method for making fertilizer from silt, in particular to a method for making farmland fertilizer after the silt, crop straw and wormwood take effect. Background technique [0002] Sludge refers to a kind of clay with a void ratio greater than 1.5 deposited in still water or slow flowing water environment and formed by biochemical action. [0003] A large amount of silt is always generated on the earth, especially where human beings live. Sludge exists everywhere, which not only pollutes the environment, but also affects people's daily life. The sludge contains organic matter such as domestic waste, sewage pit, manure, farmyard manure, bark, leaves, weeds and sawdust. For example, the sedimentation of sludge in reservoirs is very serious. The total sedimentation volume of tens of thousands of reservoirs in my country reaches more than 30%, and some of them are abandoned due to silt filling; The plane is far higher than the la...

AI Technical Summary

Problems solved by technology

These methods of using sewage sludge to prepare organic compound fertilizers solve the existing problems that people need to solve. However, it is still difficult to improve the soil environment of farmland by making organic compound fertilizers from sludge and only using sewage sludge to prepare organic compound fertilizers. To make up for the fertility of the land for a long time, it is more important now to return the straw grown on the existing farmland to the farmland

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