Method for producing compost by using beer production waste

A waste and composting technology, applied in the field of solid waste recycling, to improve the rhizosphere environment and soil structure, realize recycling, and increase soil fertility

Active Publication Date: 2013-02-20
QINGDAO LILIHUI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the beer waste is treated, the compost is produced through the aerobic composting process, which can not only make good use of the beer production waste, reduce environmental pollution, but also provide a high-quality, safe and environmentally friendly fertilizer, which is beneficial to rural areas. The vigorous development of the planting industry promotes the sustainable growth of the rural economy, which has high environmental, social and economic benefits, and is of great significance to the rational development and utilization of resources, environmental protection and sustainable development in our country. However, the existing There is no relevant report in the technology

Method used

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Examples

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Embodiment 1

[0012] A method for producing compost from beer production waste, the steps comprising:

[0013] 1. Composition of raw materials: 4kg of dewatered sludge in the beer production process was measured to have a pH value of 7, and the total carbon, organic matter, total nitrogen, total phosphorus, total potassium and moisture content were measured, and an appropriate amount of water was added to adjust the moisture content to 59. %;

[0014] 2. Composting: Add the prepared raw materials into the composting reactor, open the air supply device to continuously feed air to ensure that the composting reactor operates in an aerobic state, open the temperature measuring device to monitor the temperature of the composting body in real time, and turn over every 2 days Pile once, and measure the pH value, maturity and oxygen consumption rate of the pile every 3 days. After 13-15 days, the temperature of the pile drops to 28-30°C, and the composting ends;

[0015] The temperature change of ...

Embodiment 2

[0018] A method for producing compost from beer production waste, the steps comprising:

[0019] 1. Composition of raw materials: The waste dewatered sludge and waste distiller's grains discharged from beer production are made into 4 kg of mixed materials according to the weight ratio of 1:3.5, and the pH value is measured to be 7.5, and the total carbon, organic matter, total nitrogen, total phosphorus, and total carbon are measured. Potassium and water content, add appropriate amount of water, adjust the water content to 59%;

[0020] 2. Composting: Add the prepared raw materials into the composting reactor, turn on the air supply device to feed in an appropriate amount of air to ensure that the composting reactor is fermented in an aerobic state, and after the pile is piled up, turn on the temperature measuring device to monitor the pile in real time Temperature: Measure the pH value, maturity and oxygen consumption rate of the heap every 3 days. After 15-17 days, the tempe...

Embodiment 3

[0024] A method for producing compost from beer production waste, the steps comprising:

[0025] 1. Composition of raw materials: The dewatered sludge discharged from beer production and the treated silica gel mud are made into 4kg of mixed materials according to the dry weight ratio of 1:1, and the pH value is measured to be 7.5, and the total carbon, organic matter, total nitrogen, and For total phosphorus, total potassium and moisture content, add appropriate amount of water to adjust the moisture content to 58%;

[0026] The treatment of the silica gel mud refers to: adopting physical evaporation or oxidation to remove the ethanol in the transformed silica gel mud, so as to avoid inhibiting the growth of microorganisms;

[0027] 2. Composting: Add the prepared raw materials into the composting reactor, open the air supply device to continuously feed air to ensure that the composting reactor operates in an aerobic state, and after the compost is piled up, turn on the temper...

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Abstract

The invention discloses a method for producing compost by using beer production waste. The method includes preparing raw materials: according to a weight ratio, mixing one or more of dewatered sludge, waste lees and silica gel sludge which are discharged through beer production, determining pH of the materials to be 7-7.5 and regulating a water content to be 55-60%; composting: adding the prepared raw materials in to a compost reactor, feeding in air continuously, guaranteeing that the reactor operates under an aerobic state, stacking for 13-17 days to finish the composting, during the stacking process, turning the stack once every 2-3 days, and detecting pH, temperature, oxygen uptake rate and humification coefficient of the stack; analyzing a compost product: measuring content of various elements of an end product compost, screening and grinding the compost after stabilizing and drying, and applying directly to an organic fertilizer or an organic or inorganic compound fertilizer. The method is simple in operation, low in operation cost, free of secondary pollution and convenient to manage.

Description

technical field [0001] The invention relates to the field of solid waste recycling, in particular to a method for preparing compost from beer production waste. Background technique [0002] Wastes in the beer production industry are mainly distiller's grains, sludge and silica gel mud. According to rough statistics, in 2011, the annual output of beer distiller's grains in my country was nearly 10 million tons, and the output of waste sludge and waste silica gel mud was more than 1 million tons. Wastes, such as waste sludge, are rich in organic matter (>50% on a dry basis) and plant nutrients such as nitrogen, phosphorus, and potassium (>5%), and also contain pathogenic microorganisms and organic pollutants, so they are directly discarded to landfills or disposed of The waste sludge is mixed with phosphorus powder and humus for direct agricultural use. Since the waste sludge has not been stabilized and disinfected, it will not only cause serious environmental pollution (o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F5/00
CPCY02A40/20Y02W30/40
Inventor 崔德杰辛言君刘庆花柳新伟李拴怀
Owner QINGDAO LILIHUI BIOTECH
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