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Method for processing sludge generated in domestic sewage treatment plant by using chrysomyia megacephala larvae and material formula

A technology of Chrysocephala and domestic sewage, which is applied in the treatment of sludge produced in domestic sewage treatment plants by utilizing Chrysocephala maggots, and implements the material formula of the above method, in the field of sludge treatment, which can solve the problem of not giving guidance schemes and processing speeds Fast and other issues, to achieve the effect of less energy consumption, fast processing speed, and low fixed investment cost

Inactive Publication Date: 2013-11-13
何薪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technologies have not given specific guidance on how to use the big-headed fly maggot to treat the sludge produced by the domestic sewage treatment plant, and the processing speed is fast.

Method used

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  • Method for processing sludge generated in domestic sewage treatment plant by using chrysomyia megacephala larvae and material formula
  • Method for processing sludge generated in domestic sewage treatment plant by using chrysomyia megacephala larvae and material formula
  • Method for processing sludge generated in domestic sewage treatment plant by using chrysomyia megacephala larvae and material formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]Example 1: Use plastic buckets to collect the sludge produced by the domestic sewage treatment plant (that is, the sludge produced after the domestic sewage treatment plant treats domestic sewage, for each embodiment, the same below), add appropriate amount of auxiliary materials and stir to make big head gold Fly maggot feed, the formula of feed is shown in Table 1 (the sum of the mass percentages of each component is 100%). The bran powder used is rice bran powder, and of course one or more mixtures of rice bran powder, rice bran powder, wheat bran powder, etc. Pour the feeding material into the corresponding box, the feeding material is 8cm thick, and put in an appropriate amount of golden fly eggs (that is, insert an appropriate amount of golden fly eggs on the surface of the feeding material), and the egg density is: 1g of golden fly Eggs / 1kg feed, hatched into golden fly larvae at 30°C after picking up the eggs. The eggs of Chrysocephalus chinensis hatched into la...

Embodiment 2

[0023] Embodiment 2: Collect the sludge that domestic sewage treatment plant produces with plastic bucket, add appropriate amount of auxiliary material and stir to make Chrysophyllum macrocephala feedstuff, the formula of feedstuff is as shown in table 2 (used bran powder is rice bran powder, of course One or more mixtures of rice bran powder, rice bran powder, wheat bran powder and other bran powders can also be used, and the proportioning ratio of several kinds of mixtures is arbitrary). Pour the feeding material into the corresponding box, the feeding material is 15cm thick, and put in an appropriate amount of golden fly eggs, the egg density is: 2.5g golden fly eggs / 1kg feeding material, hatch at 45°C after the eggs are picked into Chrysocephala larvae. The eggs of Chrysocephalus chinensis hatched into larvae on the second day and began to eat feed. On the 4th day, put a bigger box outside the feeder box again, and sprinkle dry bran powder therein to facilitate the collec...

Embodiment 3

[0030] Embodiment 3: Collect the sludge that domestic sewage treatment plant produces with plastic bucket, add appropriate amount of auxiliary material and stir to make golden fly maggot feedstuff, the formula of feedstuff is as shown in table 3 (used bran powder is wheat bran powder or Rice bran powder or a mixture of wheat bran powder and rice bran powder, the mixing ratio is arbitrary). Pour the feeding material into the corresponding box, the feeding material is 10cm thick, and put in an appropriate amount of golden fly eggs. The density of the eggs is: 3g of golden fly eggs / 1kg feeding material. After the eggs are picked, they are hatched at 50°C. Chrysanthemum fly larvae. The eggs of Chrysocephalus chinensis hatched into larvae on the second day and began to eat feed. On the 4th day, put a bigger box outside the feeder box again, and sprinkle dry bran powder therein to facilitate the collection of golden fly maggots. After 4 to 5 days, the larvae of Chrysocephala macro...

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Abstract

A method for processing sludge generated in a domestic sewage treatment plant by using chrysomyia megacephala maggot and a material formula are disclosed. The method comprises: adding auxiliary materials into the sludge and stirring to prepare a chrysomyia megacephala maggot feeding material; then adding chrysomyia megacephala spawns, and making larvae incubated from the chrysomyia megacephala spawns eat the chrysomyia megacephala maggot feeding material, so as to have the sludge generated in the domestic sewage treatment plant processed. The sludge in the chrysomyia megacephala maggot feeding material accounts for 45%-95% by mass percent, the balance are auxiliary materials, and the auxiliary materials consist of the following materials by weight ratio: 0-30% of cow dung, 0-40% of bagasse, 0-10% of rapeseed meal, 0-40% of peanut shell, 0-30% of comcob, 0-30% of beer residue, 0-30% of bran powder, 0-5% of potassium dihydrogen phosphate, and 0-5% of sodium dihydrogen phosphate. According to the method and the material formula, the processing capacity is strong, the processing speed is faster than conventional composting, and the processing period is 4-5 days. After processed, the sludge is reduced by 10-30% in capacity and lightened in peculiar smell; and also high-quality organic fertilizer and high-quality insect biological protein can be obtained.

Description

technical field [0001] The invention relates to a method for treating sludge, in particular to a method for treating sludge produced by a domestic sewage treatment plant by using maggots, and belongs to the field of environmental protection. The invention also relates to a material formulation for carrying out the above method. Background technique [0002] By the end of 2011, a total of 3,135 sewage treatment plants had been built in cities and counties in my country, with a sewage treatment capacity of 136 million m 3 / sky. At present, there are 1,360 urban sewage projects under construction in my country, with a total design capacity of about 29 million m 3 / sky. As the sewage treatment plants under construction are put into operation one after another, the total output of sludge in the country will soon exceed 30 million tons. However, due to the long-term thinking of "heavy water and light mud" and the shortage of technology and funds, the sludge generated during ur...

Claims

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Application Information

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IPC IPC(8): C02F11/02A23K1/18A23K1/00
Inventor 何薪
Owner 何薪
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