Dual-hydrolysis fast treatment method of organic solid waste matter

Abstract

A process for quickly treating the organic solid waste (droppings and dung of fowls and animals, straw, stalk, leaf and twigs of tree, etc) by dual hydrolysis' to obtain organic N-C fertilizer includes such steps as regulating N / C ratio, acidifying hydrolysis by medium- and high-temp anaerobic fermenting to generate a lot of organic acid mixture used as catalyst, catalytic hydrolysis at high temp and pressure for obtain micro-molecular nitride and carbide, and catalytic ammonia fixating.

Description

1. Technical field: [0001] The invention belongs to the field of organic solid waste treatment and comprehensive utilization 2. Background technology: [0002] The traditional organic fertilizer method using organic solid waste (including livestock and poultry manure, crop straw, leaves, twigs, humus, organic domestic waste, activated sludge, industrial fermentation waste residue, industrial plant hydrolysis residue, etc.) is Long-term composting fermentation method. Divided into anaerobic fermentation and aerobic fermentation or a mixed fermentation combining the two. The fermentation time is 20 days to 30 days, and when it reaches stabilization, it is decomposed. This method takes a long time, and the result is a large amount of nutrient loss, which becomes greenhouse gas, especially produces malodorous gas and causes secondary pollution, and environmental sanitation is very poor. Because the volatilization of organic matter during the fermentation process produces a la...

AI Technical Summary

Problems solved by technology

The disadvantage is that formic acid and acetic acid are volatile weak acids, and the amount of secretion is too small. As a result, the hydrolysis reaction time is too long, requiring more than 10 hours, which makes the reaction device huge and increases the investment.

[0004] After hydrolysis and solid ammonia, the water content is relatively large, and dehydration and drying often become a very difficult problem

With the traditional drying method, the efficiency is low, the dryer is huge, the area is large and the cost is high

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