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Innocent static aerobic composting treatment method for silkworm excrement

A technology of aerobic composting and treatment method, which is applied in the field of silkworm sand waste treatment, can solve the problems of insufficient high temperature to kill pathogens, incomplete sterilization, insufficient fermentation, etc., so as to ensure the effect of high-temperature aerobic fermentation and ventilation. Good, improve the effect of killing effect

Inactive Publication Date: 2014-09-10
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the survey on the current situation of silkworm excrement treatment in the silkworm area in South China, it is found that in addition to most of the silkworm excrement being discarded at will, some silkworm households will use the silkworm excrement as fertilizer after composting and retting, but most of the processing methods are simple, just simple composting and retting without turning over Therefore, the surface and bottom of the heap, silkworm excrement cannot form aerobic composting fermentation conditions, resulting in insufficient fermentation, and cannot generate enough high temperature to kill pathogens, and the sterilization is not complete
[0004] At present, there are no research reports on the harmless composting of silkworm excrement pathogens. This method is aimed at solving the pollution of silkworm excrement waste in silkworm areas, the harmlessness of silkworm diseases and the reduction of environmental pollution. A simplified static composting method for silkworm excrement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Leak the bottom of the cement pool, use red bricks to raise about 10cm, and spread straight bamboo strips. The gap between the bamboo strips should be small to prevent the compost material from leaking out of the gap. The bottom of the pool is in a natural ventilated state without obstruction.

[0022] (2) Spread a layer of dry and crushed mushroom residue with a thickness of about 5cm on the bamboo strips, and then mix the silkworm excrement and mushroom residue mixture with a C / N ratio of 12.5:1 and 8:2 parts by weight. Pour into the silkworm excrement pond, pile up to 90cm high, spread it flat, and then cover the surface with a layer of 5cm thick fungus chaff.

[0023] (3) Set points to measure temperature at different positions of the silkworm excrement pond. Decide to turn the pile according to the change of pile temperature.

[0024] (4) Put the diseased silkworms infected with silkworm particles into the compost, take samples at intervals of 24 hours, grind, centri...

Embodiment 2

[0027] (1) Leak the bottom of the cement pool, use red bricks to raise about 10cm, and spread straight bamboo strips. The gap between the bamboo strips should be small to prevent the compost material from leaking out of the gap. The bottom of the pool is in a natural ventilated state without obstruction.

[0028] (2) Spread a layer of dry crushed mushroom residue about 5cm thick on the bamboo strips, then pour 80 kg of silkworm excrement with a C / N ratio of 15:1, and then add 20 kg of mushroom residue, and then add it. In this way, add silkworm excrement-fungus chaff-silkworm excrement to pile up one by one, up to a height of 90 cm, spread out, and then cover the surface with a layer of fungus chaff about 5 cm thick.

[0029] (3) Set points to measure temperature at different positions of the silkworm excrement pond. Decide to turn the pile according to the change of pile temperature.

[0030] (4) Put diseased silkworms infected with nuclear polyhedrosis virus into the compost, take...

Embodiment 3

[0033] (1) Leak the bottom of the cement pool, use red bricks to raise about 8cm, and lay straight bamboo strips. The gap between the bamboo strips should be small to prevent the compost material from leaking out of the gap. There is no obstruction at the bottom of the pool and it is in a state of natural ventilation.

[0034] (2) Spread a layer of chaff with a thickness of about 5cm on the bamboo strips, and then pour the silkworm excrement and fungus chaff mixture in a ratio of 7:3 parts by weight with a C / N of 10:1 Into the silkworm excrement pond, pile up to 90cm high, spread it flat, and then cover the surface with a layer of 5cm thick fungus chaff.

[0035] (3) Set points to measure temperature at different positions of the silkworm excrement pond. Decide to turn the pile according to the change of pile temperature.

[0036] (4) Put the diseased silkworms infected with silkworm particles into the compost, take samples at intervals of 24 hours, grind, centrifuge, and purify the...

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Abstract

The invention discloses an innocent static aerobic composting treatment method for silkworm excrement. The method comprises the following steps of: 1) putting up an open floor on the bottom of a treatment tank; 2) spreading a layer of conditioner on the open floor; 3) pouring mixture of the silkworm excrement and the conditioner on the layer of the conditioner and spreading, or alternately poring the silkworm excrement and the conditioner to obtain a plurality of composite layer piles and then spreading; and 4) finally covering a layer of conditioner on the surfaces of the piles in the treatment tank. A layer of mushroom residues is coated on the bottom of a silkworm excrement tank and the surface of the silkworm excrement respectively, so that the direct contact between the silkworm excrement and natural environment can be avoided, the function of heat preservation can be exerted, and different parts of silkworm excrement have the high enough temperature; and therefore, the whole high-temperature aerobic fermentation effect of the silkworm excrement tank can be guaranteed, the fermentation and composting speed of the silkworm excrement is accelerated, and the effect of killing pathogens in the silkworm excrement can be improved.

Description

Technical field [0001] The invention relates to a processing method for silkworm excrement waste, in particular to a harmless static aerobic composting method for silkworm excrement. Background technique [0002] Silkworm excrement is an important waste in sericulture production. In addition to solid manure discharged by silkworm larvae, it also includes leftover mulberry, bedding in silkworm seat, and silkworm seat disinfectant, etc. Some dead silkworms and weak silkworm carcasses. Due to the various infectious silkworm disease pathogens inevitably present in silkworm excrement, they are very likely to pose a major threat to production without safe treatment. Especially in the South China sericulture area, silkworms can be raised for 8-9 months of the year. The batches of silkworms are connected end to end. The amount of silkworm litter is increasing, and the phenomenon of random discarding is serious. In some silkworm areas, it has become a new rural public hazard. Because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 杨琼廖森泰邢东旭张发宝李丽罗国庆肖更生吴福泉肖阳李庆荣
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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