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A method for joint treatment of municipal sludge and rural organic waste
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A technology of organic waste and municipal sludge, which is applied in the field of joint treatment of municipal sludge and rural organic waste, can solve the problems of low effective utilization rate of municipal sludge and rural organic waste, and achieve high utilization rate and treatment Effects with short duration and strong applicability
Active Publication Date: 2022-04-22
江苏汇龙水务集团有限公司
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[0004] The purpose of the present invention is to solve the problem of low effective utilization rate of existing municipal sludge and rural organic waste, and to provide a method for joint treatment of municipal sludge and rural organic waste
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specific Embodiment approach 1
[0020] Specific implementation mode 1: In this implementation mode, a method for joint treatment of municipal sludge and rural organic waste is realized according to the following steps:
[0021] 1. Pretreatment:
[0022] Group the collected municipal sludge and rural organic waste into high-protein group and high-fiber group, then crush the high-protein group to 40-80 mesh to obtain high-protein group materials, and crush the high-fiber group to 20 mesh Sieve to obtain high-fiber group materials;
[0023] 2. Synchronous enzymatic fermentation:
[0024] Put the above-mentioned high-protein group materials, water, enzyme preparation A and microbial preparation A in a blender, mix them evenly, put them into a fermenter and place them in a constant temperature room, and carry out synchronous enzymolysis fermentation at 25-35°C for a time of 1~2d, obtain material A;
[0025] Put the above-mentioned high-fiber group materials, water, enzyme preparation B and microbial preparatio...
specific Embodiment approach 2
[0035] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the protein content of the high-protein group described in step 1 is higher than 10%; the high-protein group includes municipal sludge, kitchen waste, livestock and poultry manure, and dead Livestock, poultry, soybean product processing waste and expired food. Other steps and parameters are the same as those in Embodiment 1.
specific Embodiment approach 3
[0036] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the high-fiber group in step 1 includes melon rind and fruit scraps, straw, grass and tree branches and leaves, and landscaping waste. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.
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Abstract
The invention relates to a method for jointly treating municipal sludge and rural organic waste, which belongs to the field of environmental protection. It is to solve the problem of low effective utilization of existing municipal sludge and rural organic waste. Methods: 1. Pretreatment; 2. Synchronous enzymolysis and fermentation; 3. Black soldier fly treatment; 4. Screening black soldier fly worms and insect droppings. The present invention makes full use of the characteristics of municipal sludge and rural organic waste, and adopts a two-step method, that is, synchronous enzymolysis fermentation method and black soldier fly treatment method, to produce black water while effectively treating municipal waste and rural organic waste. Gadfly larvae are used as feed raw materials and insect manure organic fertilizers to achieve high utilization rates, zero emissions, significant growth in economic benefits, and effective solutions to environmental pollution problems. During the implementation of the invention, the invention has the advantages of small occupied area, low cost, strong applicability, simple operation, short processing time and easy popularization and use. The invention is applied to the treatment of municipal sludge and rural organic waste.
Description
technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method for jointly treating municipal sludge and rural organic waste. Background technique [0002] Municipal sludge is the sludge produced by the municipal water treatment industry, and its main components are excrement waste and organic waste produced by biochemical treatment. The annual output of municipal sludge in my country reaches 60 million tons, most of which are used for composting, matrix, landfill and building materials, etc. Rural organic waste has complex components, including kitchen waste, livestock and poultry manure, dead animals, straw, branches and leaves, etc. Due to the lack of limited treatment measures and management methods, there is no way to further transform them into environmental and economic benefits. Black soldier fly larva is a kind of promising feed raw material, its nutritional value is close to that of soybean, the protein...
Claims
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