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Method for preparing compost by mixing kitchen waste with Chinese medicine residue and bagasse, used as conditioners and external carbon sources

A technology of kitchen waste and additional carbon source, applied in the field of composting, can solve the problems of low utilization rate of bagasse, pollute the surrounding environment, waste or burning, etc., to expand the usable range, reduce odor emissions, and reduce nitrogen loss. Effect

Inactive Publication Date: 2014-10-01
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these traditional Chinese medicine residues are treated as waste and discharged, which on the one hand causes a great waste of resources; on the other hand, causes serious pollution to the surrounding environment
At the same time, my country is the third largest sugarcane planting country next to Brazil and India. The output of bagasse reaches 7 million tons per year. However, the current utilization rate of bagasse is very low, and it is often discarded or burned, which not only causes a waste of resources , but also pollute the surrounding environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Select a certain amount of kitchen waste, and remove the refractory substances such as large bones and plastic bags. The Chinese medicine bagasse is the remaining residue after the Radix isatidis is extracted, and the bagasse is taken from the sugar factory. The Chinese medicine bagasse and the bagasse are spread on the ground and air-dried, and then crushed with a small pulverizer until the particle size is less than 2cm. Then evenly mix the food waste, traditional Chinese medicine residue and bagasse at a ratio of 5:5:1, so that the C / N is 20:1, and adjust the moisture content of the mixture to about 50%. The height of the static stack compost is 1m, the width is 2cm, and the length is 20m. The composting process can use forced ventilation, and the ventilation volume is 0.20m 3 / min.m 3 , the ventilation time is 10 minutes, the temperature should be controlled below 70°C during the composting process, and the composting cycle is 10 days.

Embodiment 2

[0022] Select a certain amount of kitchen waste, and remove the refractory substances such as large bones and plastic bags. Traditional Chinese medicine bagasse is the residue left after the extraction of Salvia miltiorrhiza, and bagasse is taken from a sugar factory. The traditional Chinese medicine bagasse and bagasse are spread on the ground to air-dry, and then pulverized by a small grinder until the particle size is less than 2cm. Then, evenly mix the food waste, traditional Chinese medicine residue and sugar cane bagasse in a ratio of 1:1:1, so that the C / N is 30:1, and adjust the moisture content of the mixture to about 65%. The height of the static stack compost is 3m, the width is 6cm, and the length is 50m. The composting process can use forced ventilation, and the ventilation volume is 0.10m 3 / min.m 3 , the ventilation time is 30min, the temperature should be controlled below 70°C during the composting process, and the composting cycle is 30d.

Embodiment 3

[0024] Select a certain amount of kitchen waste, and remove the refractory substances such as large bones and plastic bags. The Chinese medicine bagasse is the remaining residue after the Radix isatidis is extracted, and the bagasse is taken from the sugar factory. The Chinese medicine bagasse and the bagasse are spread on the ground and air-dried, and then crushed with a small pulverizer until the particle size is less than 2cm. Then evenly mix the food waste, traditional Chinese medicine residue and bagasse at a ratio of 2:2:1, so that the C / N is 25:1, and adjust the moisture content of the mixture to about 60%. The height of the static stack compost is 2m, the width is 4cm, and the length is 30m. The composting process can use forced ventilation, and the ventilation volume is 0.15m 3 / min.m 3 , the ventilation time is 20min, the temperature should be controlled below 70°C during the composting process, and the composting cycle is 20d.

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Abstract

The invention discloses a method for preparing compost by mixing kitchen waste with Chinese medicine residue and bagasse which are used as conditioners and external carbon sources. The compost is prepared from 1-5 parts of kitchen waste, 1-5 parts of Chinese medicine residue and 1 part of bagasse in parts by weight through aerobiotic stack retting. According to the invention, the Chinese medicine residue and the bagasse are used as the conditioners and the external carbon sources, the structure, porosity and air permeability of the kitchen waste are improved, and effective conducting of kitchen waste composting is promoted; meanwhile C / N of the kitchen waste is improved, nitrogen loss in the composting process is reduced, and the manurial effect of the compost is improved.

Description

technical field [0001] The invention relates to compost, in particular to a method for preparing compost by mixing traditional Chinese medicine bagasse and bagasse as conditioning agents, adding carbon sources and kitchen waste. Background technique [0002] As the main component of municipal solid waste, food waste refers to food processing waste and food residues in families, schools, public canteens of institutions and catering industry. Since food waste is rich in organic components such as carbohydrates, fats, and proteins, it is easy to deteriorate and stink during storage, collection, and transportation, and breed various bacteria and pathogenic microorganisms, causing serious harm to the environment and human body. Regrettably, my country's food waste treatment started late, and capital and technical investment is insufficient. Therefore, how to quickly and efficiently deal with food waste has become a top priority. The composting method is one of the effective ways...

Claims

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Application Information

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IPC IPC(8): C05F17/00C05F15/00
CPCY02W30/40
Inventor 宿程远黄智陈孟林邱锐
Owner GUANGXI NORMAL UNIV
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