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Method for cultivating chlorella by using food waste

A technology of catering waste and chlorella, which is applied in the field of cultivation of phytoplankton chlorella, can solve the problems of no chlorella technology or method announcement, and achieve the effect of resource utilization, labor cost saving and remarkable effect

Active Publication Date: 2018-02-13
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The resource utilization of organic waste, especially the utilization of converting it into phytoplankton, has been reported, such as using food waste to cultivate Scenedesmus or Chlorella of Chlorophyta, and using pig manure wastewater to cultivate Scenedesmus or Chlorella, etc. Purify municipal sewage with chlorella, use chlorella to degrade food waste and digest biogas slurry, etc., use nuclear mutagenic chlorella mutants to purify anaerobic fermentation waste liquid of urban food waste, etc., but these published technologies or Methods often require inoculation of corresponding algae species, but there is no technology or method for spontaneous cultivation of Chlorella using food waste

Method used

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  • Method for cultivating chlorella by using food waste
  • Method for cultivating chlorella by using food waste
  • Method for cultivating chlorella by using food waste

Examples

Experimental program
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Effect test

Embodiment 1

[0034]In the warm month of May, obtain catering waste from restaurants, and remove non-food items such as paper towels, chopsticks, plastic bags, etc. to obtain 5.0kg of wet solid matter, and add it to an organic container with a height of 1m, a diameter of 40cm, and a hemispherical bottom. Into the glass column, inject tap water to a total volume of 100L. The plexiglass columns are placed in a glass greenhouse, and the room temperature in the glass greenhouse is 18-40°C in May. At the same time, add powdered calcium carbonate 50g, zeolite powder 25g, air-dried pond bottom mud powder 50g, calcium dihydrogen phosphate monohydrate 25g in this plexiglass column, and add commercially available Rhodopseudomonas mother liquor 0.1L, let The density of Rhodopseudomonas in food waste reaches 1×10 9 cell / L, and seal the column with aluminum foil. Then place an air stone with a length of 5 cm and a diameter of 3 cm at the bottom of the column for air aeration. The aeration can disturb ...

Embodiment 2

[0036] In the warm month of May, obtain catering waste from restaurants, and remove non-food items such as paper towels, chopsticks, plastic bags, etc. to obtain 5.0kg of wet solid matter, and add it to an organic container with a height of 1m, a diameter of 40cm, and a hemispherical bottom. Into the glass column, inject tap water to a total volume of 100L. The plexiglass columns are placed in a glass greenhouse, and the room temperature in the glass greenhouse is 18-40°C in May. At the same time, add powdered calcium carbonate 50g, zeolite powder 25g, air-dried pond bottom mud powder 50g, calcium dihydrogen phosphate monohydrate 25g in this plexiglass column, and add commercially available Rhodopseudomonas mother liquor 0.1L, let The density of Rhodopseudomonas in food waste reaches 1×10 9 cell / L, and seal the column with aluminum foil. Then place an air stone with a length of 5 cm and a diameter of 3 cm at the bottom of the column for aeration. The aeration can disturb the...

Embodiment 3

[0038] In the warm month of May, we obtained catering waste from restaurants, removed non-food items such as paper towels, chopsticks, and plastic bags, and obtained 20.0 kg of wet solid matter, which was added to an organic waste with a height of 1 m, a diameter of 40 cm, and a hemispherical bottom. Into the glass column, inject tap water to a total volume of 50L. The plexiglass columns are placed in a glass greenhouse, and the room temperature in the glass greenhouse is 18-40°C in May. At the same time, add powdered calcium carbonate 800g, zeolite powder 400g, air-dried pond bottom mud powder 1000g, calcium dihydrogen phosphate monohydrate 300g in this plexiglass column, and add commercially available Rhodopseudomonas mother liquor 10L, let catering The density of Rhodopseudomonas in garbage reaches 5×10 11 cell / L, and seal the column with aluminum foil. Then place two air stones with a length of 5 cm and a diameter of 3 cm at the bottom of the column for aeration. The aer...

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Abstract

The invention relates to a cultivating method for phytoplankton chlorella and in particular to a method for cultivating chlorophyta chlorella phytoplankton by using food waste. The method comprises the following steps: firstly, to obtain the food waste, and controlling the solid volume proportion in the food waste to be 5%-60%, placing in a transparent capped container, adding corresponding substances, and aeration-rotting in 18-45 DEG C of the room temperature; after 30-60 days of the rotting, and while the body of water is taupe or light brown and has the obvious ammonia smell, transferringupper rotting liquid to a transparent container, and diluting by using tap water, wherein the total phosphorus concentration in the diluted water body is 1.2-5.2 mg / L; and stirring the diluted water body, and placing for 5-10 days, to obtain the chlorella phytoplankton with the high concentration. The provided cultivating method is simple and is easily implemented, and raw materials are easily obtained and can be continuously used for many times. The cultivation cost is low. An excellent way is provided for the resource utilization of the food waste.

Description

technical field [0001] The invention relates to a method for cultivating phytoplankton chlorella, in particular to a method for cultivating phytoplankton of the genus Chlorella by utilizing food waste. Background technique [0002] Catering waste is mainly composed of degradable organic matter, mainly including starch contained in staple foods, cellulose and pentasaccharide contained in vegetables and plant stems, protein and fat contained in meat, monosaccharides, fruit acids and fruit acids contained in fruits. Gum (polysaccharide), etc., wherein the inorganic salt is NaCl, and also contains a small amount of calcium, magnesium, potassium, iron and other trace elements. Therefore, catering waste is a potential resource that needs to be vigorously developed. [0003] China's huge catering industry results in a huge output of food waste. At present, the main direction of my country's catering waste treatment is feed and energy. Grease can be recycled, waste ie dry matter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12B09B3/00C12R1/89
CPCB09B3/00C12N1/12Y02W30/20
Inventor 王小冬魏布顾兆俊曾宪磊刘兴国
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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