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Method for preparing organic fertilizer from human excrement treated by boettcherisca peregrina

A technology of sarcophagus and organic fertilizer, which is applied in the field of feces treatment, using sarcophagus to process human feces to prepare organic fertilizer, and achieves the effects of low energy consumption, low emission and fast speed

Inactive Publication Date: 2012-02-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There has not been any report about the technology of processing human excrement to prepare organic fertilizer by using the sarcocarpus fly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After extracting human feces from the septic tank, filter out the sundries through a mesh screen with a hole size of 2 cm, add appropriate amount of auxiliary materials (see Table 1), stir evenly, and prepare compost. Pour the culture material into the corresponding container, the height of the culture material is 4cm, and insert an appropriate amount of larvae of the palm fly on the surface of the culture material, and the density of the larvae is: 0.2g larvae of the palm fly / kg culture material. The culture temperature is 25°C, and the larvae of Sarcophagus cerevisiae begin to decompose and transform the compost on the day they are inserted into the compost. Properly replenish water during the cultivation process to prevent excessive temperature rise. On the 4th day, a larger container was placed outside the culture container, and dry rice bran powder was sprinkled in it, so as to facilitate the collection of mature brown-tailed fly maggots. After 4 to 5 days, the la...

Embodiment 2

[0023] After extracting the human feces from the septic tank, filter out the sundries through a mesh screen with a hole size of 6 cm, add appropriate amount of auxiliary materials (see Table 2), stir evenly, and prepare compost. Pour the culture material into the corresponding container, the height of the culture material is 6cm, and insert an appropriate amount of larvae of the palm fly on the surface of the culture material, and the density of the larvae is: 0.6g larvae of the palm fly / kg culture material. The culture temperature was 30°C, and the larvae of Sarcophagus cerevisiae began to decompose and transform the compost on the day of inoculation. Properly replenish water during the cultivation process to prevent excessive temperature rise. On the 4th day, a larger container was placed outside the culture container, and dry rice bran powder was sprinkled in it, so as to facilitate the collection of mature brown-tailed fly maggots. After 4~5 days, the larvae of the sarcoc...

Embodiment 3

[0027] After extracting human feces from the septic tank, filter out the sundries through a mesh screen with a hole size of 8 cm, add appropriate amount of auxiliary materials (see Table 3), stir evenly, and prepare compost. Pour the culture material into the corresponding container, the height of the culture material is 8cm, and insert an appropriate amount of larvae of the palm fly on the surface of the culture material, and the density of the larvae is: 0.8g larvae of the palm fly / kg culture material. The culture temperature was 35°C, and the larvae of Sarcophagus cerevisiae began to decompose and transform the compost on the day of inoculation. Properly replenish water during the cultivation process to prevent excessive temperature rise. On the 4th day, a larger container was placed outside the culture container, and dry rice bran powder was sprinkled in it, so as to facilitate the collection of mature brown-tailed fly maggots. After 4 to 5 days, when the larvae of the sa...

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Abstract

The invention discloses a method for preparing organic fertilizer from human excrement treated by boettcherisca peregrina, and belongs to the technical field of environmental protection. The method comprises the following steps of filtering human excrement by a sieve having aperture sizes of 2 to 10 centimeters, adding auxiliary materials into the sieved human excrement, preparing the mixture into a culture material, inoculating the surface of the culture material with boettcherisca peregrina maggots, carrying out culture at a temperature of 25 to 35 DEG C for 4 to 5 days, collecting the culture material obtained by the previous step, drying, and preparing the dried culture material into organic fertilizer, wherein the auxiliary materials comprise feather meal, meat and bone meal, sawdustand straw powder. The method has the advantages that treatment capability is strong; a floor space is small; energy consumption of treatment processes is low; biological organic fertilizer and a boettcherisca peregrina maggot biological protein can be obtained simultaneously; human excrement resource utilization is realized; waste is changed into valuables; environmental sanitation is improved; organic fertilizer and a biological protein are obtained simultaneously; and the method has good application prospects.

Description

technical field [0001] The invention relates to a feces treatment method, which belongs to the field of environmental protection, and in particular to a method for preparing organic fertilizer by treating human feces with P. Background technique [0002] Every day, large and medium-sized cities pump out a large amount of human feces from the septic tanks of public toilets. If they are not pumped, these human feces will have the environmental risk of overflowing after the tank is full. If they are pumped out, the follow-up treatment of such a large amount of human feces But it has become a big problem that plagues the municipal sector. At present, the main treatment method for urban human excrement is to pull it to landfill after dehydration or air-drying. A small amount of human waste is used for microbial fermentation composting. [0003] Although the method of landfill is simple and convenient, the processing cost is high, the time is long, and it takes up a lot of land....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F3/04
CPCY02A40/20
Inventor 胡新军张古忍
Owner SUN YAT SEN UNIV
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