Preparation for brewer grain charcoal and application of brewer grain charcoal in lead-bearing wastewater

A technology of brewer's grains and biochar, which is applied in the direction of biofuel, water pollutants, and other chemical processes, can solve the problem of low price, and achieve the effect of efficient absorption and effective resource utilization

Inactive Publication Date: 2017-12-12
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For these wastes, they are generally used as feed and fertilizer, but at present, no matter in ferti

Method used

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  • Preparation for brewer grain charcoal and application of brewer grain charcoal in lead-bearing wastewater
  • Preparation for brewer grain charcoal and application of brewer grain charcoal in lead-bearing wastewater
  • Preparation for brewer grain charcoal and application of brewer grain charcoal in lead-bearing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] A preparation method of beer lees biochar includes the following steps:

[0033] A. Place the wet brewer's spent grains at 50℃ for 48h to dry. After drying, they are sealed in a sealed bag, and the gas inside is removed and placed in an oven for dry storage;

[0034] B. Put the crushed beer lees in a porcelain crucible, compactly cover the lid, and place it in a muffle furnace for pyrolysis and carbonization for 2 hours at a pyrolysis temperature of 700°C;

[0035] C. After cooling to room temperature, grind, pass through a 100-mesh sieve, seal and store separately, and place in an oven for dry preservation.

Example Embodiment

[0036] Example 2

[0037] A preparation method of beer lees biochar includes the following steps:

[0038] A. Place the wet brewer's spent grains at 40°C for 60 hours and dry them in a sealed bag after drying, remove the gas inside, and place them in an oven for dry storage;

[0039] B. Put the crushed beer lees in a porcelain crucible, compactly cover the lid, and place it in a muffle furnace for pyrolysis and carbonization for 3 hours at a pyrolysis temperature of 300°C;

[0040] C. After cooling to room temperature, grind, pass through a 100-mesh sieve, seal and store separately, and place in an oven for dry preservation.

Example Embodiment

[0041] Example 3

[0042] A preparation method of beer lees biochar includes the following steps:

[0043] A. Place the wet brewer's spent grains at 60°C for 36 hours and dry it in a sealed bag after drying, remove the gas inside, and place it in an oven for dry storage;

[0044] B. Put the crushed beer lees in a porcelain crucible, compactly cover it, and place it in a muffle furnace for pyrolysis and carbonization at a pyrolysis temperature of 750°C for 1 hour;

[0045] C. After cooling to room temperature, grind, pass through a 100-mesh sieve, seal and store separately, and place in an oven for dry preservation.

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PUM

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Abstract

The invention discloses a brewer grain charcoal applied to lead-bearing wastewater. The brewer grain charcoal is prepared according to the steps of placing the brewer grain into an oven for drying, crushing, carbonizing under constant temperature being 300-750 DEG C, cooling to room temperature and then screening. A test result proves that the brewer grain charcoal has higher removing efficiency for lead-bearing wastewater. The invention fully utilizes the waste of the beer industry to solve the environmental problem and reduce the resource waste and the serious pollution to the surrounding caused by the abuse of the brewing waste.

Description

Technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to the preparation of brewer's grains biochar and its application in lead-containing wastewater. Background technique [0002] In my country, the content of lead released into the environment every year is 35,000 tons, of which about 30% of lead pollutants are collected in water bodies. The main sources of lead pollution are lead mining, large amounts of automobile exhaust emissions, and industrial waste residues. Lead pollutants in water can enter the human body through the digestive tract, causing acute poisoning of the human body, and in severe cases, the human body's cardiovascular arterioles and abnormal reproductive functions of men and women. According to research, once lead poisoning occurs, it will seriously affect the human body's growth and development, intelligence and memory and other health functions. Therefore, effective treatment of lead pollution in water ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C10B53/02C02F1/28C02F101/20
CPCB01J20/20B01J2220/4825B01J2220/4875C02F1/283C02F2101/20C10B53/02Y02E50/10
Inventor 徐小逊吴娇盛美华董袁媛张雨豪王丹张世熔
Owner SICHUAN AGRI UNIV
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