Sludge composting method

Abstract

The invention provides a sludge composting method, and relates to a sludge treatment method which comprises the steps of preferable accessory selection, CK21 fungus spraying inoculation, heavy metal passivation and powder granulation, and then three-dimensional composite biological organic fertilizer with organic, inorganic and microbial active constituents is obtained. Mushroom compost and pig manure are used as accessories which are easily obtained and degraded, the stacker fermentation time is short, only one time of fermentation is needed, the C / N ratio can be effectively adjusted, and the water content of the sludge is reduced; and the efficient beneficial bio-fungus community CK21 is adopted. The microbial concentration is high, the secretion ability of the enzyme is strong, organic matters can be quickly decomposed so as to prevent the corruption of the organic matters, no odor exists, sludge is used for CK21 inoculation, fermentation starts fast, and the effect is good; and the product is inoculated with the CK21 fungus secondarily so as to further balance and activate nutrients, and the microbial natural reproduction is utilized to realize the is called flower dipping absorbing of the plants to nutrients. The invention has the advantages of optimizing the composting conditions, shortening the composting time, reducing energy consumption of turning, and reducing the damage of the heavy metal on the ecological environment.

Description

technical field [0001] The invention relates to a sludge treatment method, in particular to a sludge composting method. Background technique [0002] As the rate of urban sewage treatment increases year by year, the sludge produced by urban sewage treatment plants - urban sludge - also increases sharply. my country's urban sewage treatment plants produce a large amount of dry sludge every year, and the problem of sludge outlets has become very prominent. For example, the proportion of large-scale production in Fujian's aquaculture and mushroom planting industries has exceeded 50%, and various organic solid wastes in cities and rural areas The amount of organic matter has reached an astonishing amount. The annual production of poultry manure and mushroom dregs is large, which cannot be digested and piled up in large quantities, causing great harm to the environment. Secondary pollution of the environment. How to utilize these precious organic waste resources to realize resour...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a sludge composting method for the problems of high energy consumption and long composting time of the existing strip-type composting