CN105801191A - Effective microbiota strengthened domestic garbage composting technology - Google Patents

Abstract

The invention discloses an effective microbiota-enhanced domestic waste composting process. Before composting, recyclable materials such as plastics, metals, glass, and papers are sorted, and the remaining degradable organic materials are mixed and added with strains before composting. , the volume of the compost is by length * width * height = 4m * 2.2m * 1.85m, and the moisture is controlled at about 60%; every 24 hours, the temperature measurement is carried out, and the multi-point temperature measurement method is used to measure the temperature; Compared with that, the invention effectively improves the degradation rate of garbage treatment, the process is simple, no toxic and harmful substances are produced, the degradation is fast, the construction is convenient, and the bacteria are extracted by garbage, which is more cost-saving and environmentally friendly, and has the value of popularization and use.

Description

An effective microbiota-enhanced domestic waste composting process

technical field

The invention relates to a bio-fermentation environmental protection technology, in particular to a process for strengthening domestic garbage composting with effective microbial groups.

Background technique

The composting process is mainly to use microorganisms to promote the biochemical conversion process of biodegradable organic matter in garbage to stable humus. Among them, the most difficult to degrade is cellulose, and the most difficult to degrade is lignin, so the destruction of cellulose and lignin means The disintegration of cell matter and the production of humus are the most important changes in physical properties during the composting process. Therefore, the technology of artificially inoculating high-efficiency degrading bacteria to promote the decomposition of cellulose and lignin is of great significance to accelerate the process of composting fermentation. Therefore, research in this area is also a hot spot and difficulty in the field of waste biochemical treatment.

Contents of the invention

The object of the present invention is to provide a kind of effective microbiota strengthening domestic garbage composting process in order to solve the above problems.

The present invention achieves the above object through the following technical solutions:

The present invention comprises the following steps:

(1) After sorting plastic, metal, glass, paper and other recyclable substances before composting, the remaining degradable organic substances are mixed with bacteria and then composted. The volume of compost is length × width × height = 4m × 2.2m×1.85m, the moisture is controlled at about 60%;

(2) The temperature is measured every 24 hours, and the multi-point temperature measurement method is used to measure the temperature;

(3) pH measurement, fresh sample: deionized water = 1:10, shake for 1 hour, filter, and measure at 25°C;

(4) EC determination, fresh sample: deionized water = 1:10, shake for 1 hour, filter, and measure at 25°C;

(5) Determination of E4/E6, according to fresh sample: deionized water = 1:10, weighed, shaken for 16 hours, centrifuged, filtered, and the absorbance values of the filtrate were measured at wavelengths of 465nm and 665nm respectively;

Determination of moisture content, fresh samples were weighed, dried at 105°C for 4 hours, weighed, moisture content = (M fresh - M dry)/M fresh;

Specifically, the strains were inoculated from the isolated strains in the compost heating stage and the strains preserved in the laboratory, respectively, in shake flasks of compost leach juice culture solution of domestic garbage, pig manure, and highland barley straw, cultured at 160rpm for 48h, and centrifuged at 4000rpm. After 5 minutes, collect the supernatant, measure the content of TOC in the supernatant, and use the degradation rate of TOC as an index to carry out the primary screening of organic matter decomposing bacteria.

The beneficial effects of the present invention are:

The present invention is an effective microbiota-enhanced domestic waste composting process. Compared with the prior art, the present invention effectively improves the degradation rate of waste treatment, the process is simple, no toxic and harmful substances are produced, the degradation is fast, the construction is convenient, and the strains The use of garbage extraction is more cost-saving and environmentally friendly, and has the value of popularization and use.

detailed description

The present invention will be further described below:

The present invention comprises the following steps:

(6) After sorting plastic, metal, glass, paper and other recyclable materials before composting, the remaining degradable organic materials are mixed with bacteria and then composted. The volume of compost is length×width×height=4m× 2.2m×1.85m, the moisture is controlled at about 60%;

(7) The temperature is measured every 24 hours, and the multi-point temperature measurement method is used to measure the temperature;

(8) pH measurement, fresh sample: deionized water = 1:10, shake for 1 hour, filter, and measure at 25°C;

(9) EC determination, fresh sample: deionized water = 1:10, shake for 1 hour, filter, and measure at 25°C;

(10) Determination of E4/E6, weigh fresh sample: deionized water = 1:10, shake for 16 hours, centrifuge, filter, and measure the absorbance value of the filtrate at wavelengths of 465nm and 665nm respectively;

Determination of moisture content, fresh samples were weighed, dried at 105°C for 4 hours, weighed, moisture content = (M fresh - M dry)/M fresh;

Specifically, the strains were inoculated from the isolated strains of the compost heating stage and the strains preserved in the laboratory, respectively, in shake flasks of compost leach juice culture liquid of domestic garbage, pig manure, and highland barley straw, cultured at 160rpm for 48h, and centrifuged at 4000rpm. After 5 minutes, collect the supernatant, measure the content of TOC in the supernatant, and use the degradation rate of TOC as an index to carry out the primary screening of organic matter decomposing bacteria.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (2)

1. an effective microorganisms strengthening consumer garbage compost technique, it is characterised in that comprise the following steps:

(1) after the material of the recoverables such as plastics, metal, glass, paper being sorted before compost, it is fertile that the laggard windrow of strain is added in the mixing of remaining degradable organic substance, compost volume presses length × wide × height=4m × 2.2m × 1.85m, and moisture Control is about 60%；

(2) carried out temperature measuring every 24 hours, adopt multi-point temp to measure mode when measuring temperature and be measured；

(3) pH measures, fresh sample: deionized water=1:10, shakes 1h, filters, 25 DEG C of mensuration；

(4) EC measures, fresh sample: deionized water=1:10, shakes 1h, filters, 25 DEG C of mensuration；

(5) E4/E6 measures, and by fresh sample: deionized water=1:10 weighs, shakes 16h, centrifugal, filters, and filtrate measures absorbance respectively at wavelength 465nm, 665nm；

(6) measurement of water-content coefficient, fresh sample weighs, 105 DEG C of dry 4h, weighs, and/M is fresh for moisture content=(fresh-M of M does).

2. effective microorganisms according to claim 1 strengthening consumer garbage compost technique, it is characterized in that: described strain is from the separation strain of compost temperature rise period and Laboratories Accession strain, it is inoculated in the compost diffusion juice culture fluid shaking flask of house refuse, pig manure and Semen avenae nudae straw respectively, 48h is cultivated in 160rpm, in the centrifugal 5min of 4000rpm, collect supernatant, measure the content of TOC in supernatant, with the degradation rate of TOC for index, carry out the primary dcreening operation of organic matter decomposition strain and obtain.